Archive for the ‘News’ Category

Green Chemistry Volume 13 Issue 10 online now!

Green Chemistry issue 10 is now online and features some exciting contributions to the field.  The outside front cover highlights the recent article form Martyn Poliakoff and co-workers on using carbon dioxide from carbon capture and storage as a solvent, and asks whether this could help mitigate the cost of using supercritical fluids.  This article was also featured in Chemistry World – click here to read more!

The inside front cover highlights work by George Kraus and co-workers and illustrates the synthesis of aromatic compounds from pyrones via Diels-Alder chemistry.  The main pyrone employed in the work is derived from the natural product malic acid, and the reaction provides para-substituted adducts in good yields.  Read the full article here.

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Top ten most accessed articles in August

This month sees the following articles in Green Chemistry that are in the top ten most accessed:-

Recent advances in ionic liquid catalysis

Qinghua Zhang, Shiguo Zhang and Youquan Deng
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC15334J

Examples of heterogeneous catalytic processes for fine chemistry
Carlo Lucarelli and Angelo Vaccari
Green Chem., 2011, 13, 1941-1949, DOI: 10.1039/C0GC00760A

Efficient catalytic conversion of fructose into hydroxymethylfurfural by a novel carbon-based solid acid
Jianjian Wang, Wenjie Xu, Jiawen Ren, Xiaohui Liu, Guanzhong Lu and Yanqin Wang
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC15306D

Ionic liquid pretreatment of lignocellulosic biomass with ionic liquid–water mixtures
Agnieszka Brandt, Michael J. Ray, Trang Q. To, David J. Leak, Richard J. Murphy and Tom Welton
Green Chem., 2011, 13, 2489-2499, DOI: 10.1039/C1GC15374A

Selective catalytic oxidation of glycerol: perspectives for high value chemicals
Benjamin Katryniok, Hiroshi Kimura, Elżbieta Skrzyńska, Jean-Sébastien Girardon, Pascal Fongarland, Mickaël Capron, Rémy Ducoulombier, Naoki Mimura, Sébastien Paul and Franck Dumeignil
Green Chem., 2011, 13, 1960-1979, DOI: 10.1039/C1GC15320J, Critical Review

Impact of ionic liquid pretreated plant biomass on Saccharomyces cerevisiae growth and biofuel production
Mario Ouellet, Supratim Datta, Dean C. Dibble, Pramila R. Tamrakar, Peter I. Benke, Chenlin Li, Seema Singh, Kenneth L. Sale, Paul D. Adams, Jay D. Keasling, Blake A. Simmons, Bradley M. Holmes and Aindrila Mukhopadhyay
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC15327G

Green synthesis of metal nanoparticles using plants
Siavash Iravani
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC15386B

Ionic liquids and fragrances – direct isolation of orange essential oil
Katharina Bica, Peter Gaertner and Robin D. Rogers
Green Chem., 2011, 13, 1997-1999, DOI: 10.1039/C1GC15237H

Towards rational molecular design: derivation of property guidelines for reduced acute aquatic toxicity
Adelina M. Voutchkova, Jakub Kostal, Justin B. Steinfeld, John W. Emerson, Bryan W. Brooks, Paul Anastas and Julie B. Zimmerman
Green Chem., 2011, 13, 2373-2379, DOI: 10.1039/C1GC15651A

Sulfonic acid supported on hydroxyapatite-encapsulated-γ-Fe2O3 nanocrystallites as a magnetically separable catalyst for one-pot reductive amination of carbonyl compounds
Jia Deng, Li-Ping Mo, Fei-Yang Zhao, Lan-Lan Hou, Li Yang and Zhan-Hui Zhang
Green Chem., 2011, 13, 2576-2584, DOI: 10.1039/C1GC15470B

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Green Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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Top ten most accessed articles in July

This month sees the following articles in Green Chemistry that are in the top ten most accessed:-

Selective oxidation of 5-hydroxymethyl-2-furfural using supported gold–copper nanoparticles
Thomas Pasini, Marco Piccinini, Magda Blosi, Rosa Bonelli, Stefania Albonetti, Nikolaos Dimitratos, Jose A. Lopez-Sanchez, Meenakshisundaram Sankar, Qian He, Christopher J. Kiely, Graham J. Hutchings and Fabrizio Cavani
Green Chem., 2011, 13, 2091-2099, DOI: 10.1039/C1GC15355B

Copper-catalyzed oxidative alkyne homocoupling without palladium, ligands and bases

Xueshun Jia, Kun Yin, Chunju Li, Jian Li and Haishan Bian
Green Chem., 2011, 13, 2175-2178, DOI: 10.1039/C1GC15318H

Ionic liquids and fragrances – direct isolation of orange essential oil
Katharina Bica, Peter Gaertner and Robin D. Rogers
Green Chem., 2011, 13, 1997-1999, DOI: 10.1039/C1GC15237H

Selective catalytic oxidation of glycerol: perspectives for high value chemicals
Benjamin Katryniok, Hiroshi Kimura, Elżbieta Skrzyńska, Jean-Sébastien Girardon, Pascal Fongarland, Mickaël Capron, Rémy Ducoulombier, Naoki Mimura, Sébastien Paul and Franck Dumeignil
Green Chem., 2011, 13, 1960-1979, DOI: 10.1039/C1GC15320J, Critical Review

Algae as a source of renewable chemicals: opportunities and challenges
Patrick M. Foley, Evan S. Beach and Julie B. Zimmerman
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC00015B

Production of liquid hydrocarbon fuels by catalytic conversion of biomass-derived levulinic acid
Drew J. Braden, Carlos A. Henao, Jacob Heltzel, Christos C. Maravelias and James A. Dumesic
Green Chem., 2011, 13, 1755-1765, DOI: 10.1039/C1GC15047B

A green approach to chemical building blocks. The case of 3-hydroxypropanoic acid
Cristina Della Pina, Ermelinda Falletta and Michele Rossi
Green Chem., 2011, 13, 1624-1632, DOI: 10.1039/C1GC15052A

Searching for green solvents
Philip G. Jessop
Green Chem., 2011, Advance Article, DOI: 10.1039/C0GC00797H, Perspective

Enzymatic reductions for the chemist
Frank Hollmann, Isabel W. C. E. Arends and Dirk Holtmann
Green Chem., 2011, 13, 2285-2314, DOI: 10.1039/C1GC15424A

Use of zeolites for greener and more para-selective electrophilic aromatic substitution reactions
Keith Smith and Gamal A. El-Hiti
Green Chem., 2011, 13, 1579-1608, DOI: 10.1039/C0GC00689K

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Green Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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8th GC&C Symposium on Food Waste Utilisation

8th GC&C Symposium on Food Waste Utilisation (18th October, 10:00—17.30, The King’s Manor, York)

The Green Chemistry and the Consumer annual symposia bring together a diverse audience of representatives from consumer product supply chains, academics, NGOs, government, trade associations, media and other stakeholders to learn about green chemistry solutions for sustainable product supply chains. The 8th symposium, ‘Waste to Wealth: Food Waste Utilisation’, will explore recent advances in the field, including new technologies for food waste valorisation. The programme for the day will consist of a blend of both presentations and breakout sessions.  The symposium will conclude with a wine reception providing a further networking opportunity.

Speakers include:

  • Malcolm Bailey, Regional Director of NISP
  • Prof. Robert Edwards, Chief Scientist, FERA
  • Dr. John Williams, Head of Materials for Energy and Industry, NNFCC

Who should attend?

These events are open to all and are aimed at organisations and individuals with an interest in green chemistry and sustainable chemical products.  The event will provide an invaluable opportunity for mutual learning and technology transfer.

This event will be of interest to:

  • Food producers
  • Food retailers
  • Energy providers
  • Waste managers and regulators
  • Bio-based manufacturers

For more details about the conference including registration, please contact Heather Hamilton (Green Chemistry Network Manager) at heather.hamilton@greenchemistrynetwork.org.

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Top ten most accessed articles in June

This month sees the following articles in Green Chemistry that are in the top ten most accessed:-

Searching for green solvents
Philip G. Jessop
Green Chem., 2011, Advance Article, DOI: 10.1039/C0GC00797H, Perspective

Viable methodologies for the synthesis of high-quality nanostructures
Jonathan M. Patete, Xiaohui Peng, Christopher Koenigsmann, Yan Xu, Barbara Karn and Stanislaus S. Wong
Green Chem., 2011, 13, 482-519, DOI: 10.1039/C0GC00516A, Critical Review

Selective catalytic oxidation of glycerol: perspectives for high value chemicals
Benjamin Katryniok, Hiroshi Kimura, Elżbieta Skrzyńska, Jean-Sébastien Girardon, Pascal Fongarland, Mickaël Capron, Rémy Ducoulombier, Naoki Mimura, Sébastien Paul and Franck Dumeignil
Green Chem., 2011, 13, 1960-1979, DOI: 10.1039/C1GC15320J, Critical Review

Examples of heterogeneous catalytic processes for fine chemistry
Carlo Lucarelli and Angelo Vaccari
Green Chem., 2011, 13, 1941-1949, DOI: 10.1039/C0GC00760A, Tutorial Review

Algae as a source of renewable chemicals: opportunities and challenges
Patrick M. Foley, Evan S. Beach and Julie B. Zimmerman
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC00015B

Levulinic esters from the acid-catalysed reactions of sugars and alcohols as part of a bio-refinery
Xun Hu and Chun-Zhu Li
Green Chem., 2011, 13, 1676-1679, DOI: 10.1039/C1GC15272F, Communication

Sustainable hydrogen production by the application of ambient temperature photocatalysis
Michael Bowker
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC00022E, Critical Review

From biomass to feedstock: one-step fractionation of lignocellulose components by the selective organic acid-catalyzed depolymerization of hemicellulose in a biphasic system
Thorsten vom Stein, Philipp M. Grande, Henning Kayser, Fabrizio Sibilla, Walter Leitner and Pablo Domínguez de María
Green Chem., 2011, 13, 1772-1777, DOI: 10.1039/C1GC00002K, Paper

5-Hydroxymethylfurfural (HMF) as a building block platform: Biological properties, synthesis and synthetic applications
Andreia A. Rosatella, Svilen P. Simeonov, Raquel F. M. Frade and Carlos A. M. Afonso
Green Chem., 2011, 13, 754-793, DOI: 10.1039/C0GC00401D, Critical Review

Green materials synthesis with supercritical water
Tadafumi Adschiri, Youn-Woo Lee, Motonobu Goto and Seiichi Takami
Green Chem., 2011, 13, 1380-1390, DOI: 10.1039/C1GC15158D, Tutorial Review

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Green Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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Green Chemistry Volume 13 Issue 8 online now!

Green Chemistry Volume 13 Issue 8 Front Cover by Itamar Daube

Drawn by Itamar Daube; http://www.itamardaube.com

Green Chemistry issue 8 features an artist’s impression* of the problematic situation of Fischer-Tropsch bimetallic catalysis, it highlights a critical review from Advisory Board member Gadi Rothenberg and co-workers from The Netherlands and France.  Their short critical review summarises and analyses the developments in Fischer–Tropsch catalysis using bimetallic alloys, read the full article online here.

Green Chemistry Volume 13 Issue 8 Inside Front CoverThe inside front cover highlights the article ‘Controlled polymerisation of lactide using an organo-catalyst in supercritical carbon dioxide’ by Idriss Blakey and co-workers from the University of Queensland, Australia and the University of Nottingham, UK.  Their article, previously highlighted on this blog, reports the ‘green’ synthesis of well defined polylactic acid (PLA) via organo-catalysis, without using any organic solvents.  Read the full article online here.

*The copyright owner, Prof. Dr. Gadi Rothenberg, hereby gives all persons permission to use this cover image for any purpose, provided that the artist’s name and website is correctly cited.  Drawn by Itamar Daube; http://www.itamardaube.com

 
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Granting wishes for researchers

Rafael Luque discusses funding for early stage researchers and the importance of green chemistry with Anna Simpson

Rafael Luque

Rafael Luque is the Ramon y Cajal fellow at the University of Cordoba in Spain. His interests range from materials science, nanotechnology and heterogeneous catalysis to biomass valorisation and biofuels.

How did you get to where you are today? 

I was always fascinated by chemistry because it’s in everything. This table that we are sitting at is chemistry! 

I did my undergraduate degree at the University of Cordoba in Spain and I was delighted to receive a grant to do my PhD in the organic chemistry department there. I started to have my own ideas and in pursuing them, my supervisors were always happy. It all worked out really well in the end! 

During my PhD, I spent six months at the green chemistry centre of excellence at the University of York in the UK. I worked with Duncan Macquarrie who had a big impact on my career. I am very grateful to him and to James Clark for this. After my PhD, I returned to York as a green chemistry research associate and spent some of the most wonderful years of my career to date there. Everything went very well in York; however, after three and a half years as a postdoc, I needed to move on with my career and my life. So, due to personal and family pressures, I decided to move back to Cordoba. In the beginning, this was difficult but I managed to get a nice fellowship and now have a small group of four PhD students and a postdoc starting soon. 

What are the biggest challenges facing young researchers and what’s your advice for someone about to embark on the next step after a PhD or postdoc? 

Innovation is the key to success. You can’t get grant money for doing the same thing that we have been doing for over 20 years, it must be new work. 

Getting funding and grants is challenging, but even with a very small group, such as one masters or PhD student, you can start to do more work. I have met lots of innovative and creative people in Europe and Spain. They have lots of interesting ideas and promising research but the problem is they need basic funding to progress. My advice is to keep trying and not lose courage as generally, if you are unsuccessful, you have to carry on and fight for what you want to do. 

You have quite wide ranging research interests but the theme that underpins it all is green and sustainable chemistry. Why is green chemistry important? 

Green chemistry is going to be everything in the future. We will be using green products made using technology with low environmental impact and utilising locally sourced materials and even waste. The perception of waste as a resource rather than a problem is something we have to change in people’s minds. We still have some work to do there. 

After working in both the UK and Spain, what differences did you experience between the chemical research communities in these countries? 

There are lots of differences. In the UK, there are big funding agencies to support researchers. This is something we lack in Spain, but I must stress that in Spain, I have found that we are good and very competitive in terms of publications and research. We are innovative and creative and I was very pleased to see, when I got back, that there were so many people doing such a great job – it is a big inspiration for me. It is especially apparent with young researchers. They lack resources but are still self-motivated to pursue their dreams, which is very encouraging. I take care of students and encourage them to carry on because I can see that this degree of motivation is getting them everywhere. I love teaching – there is always a way to engage the students to learn about chemistry. Being a young academic often helps because students feel closer to you as there is not an age barrier. The language and the way you communicate with the students are not so different. 

Where does your funding come from? 

At the moment it’s mostly national and regional funding. This wasn’t particularly easy to get, but the government supports young researchers with groundbreaking ideas. The funding I received is aimed at early career researchers and for me, after proposing one of these groundbreaking concepts, it was helpful that I could get some funding – it allowed me to go back to Cordoba. 

Hopefully, at the end of October, I will try my best to be successful with a European bid, which could potentially put me in a more stable situation and allow me to grow a bigger group. This funding, called a ‘Starting Research Grant’ is indeed a lot of money – 1.5 million Euros – so it could have a big impact on my career. Its purpose is to allow someone to develop ideas and start an independent research group that could lead to important developments for Europe. We plan to work with lignocellulosics and lignin, one of our main targets. 

What do you like to do when you are not doing chemistry? 

I love travelling – it’s one of my favourite things, so I have been all over the world except for Australia and New Zealand. When I’m at home, I’m addicted to video games; I must admit that I am a big fan. Other than that, I love music, so if I wasn’t a chemist I would probably be a DJ.

Read some of Rafael Luque’s latest work in Green Chemistry by following the links below:

Catalytically active self-assembled silica-based nanostructures containing supported nanoparticles
Camino Gonzalez-Arellano, Alina Mariana Balu, Rafael Luque and Duncan J. Macquarrie
Green Chem., 2010, 12, 1995-2002

Magnetically separable nanoferrite-anchored glutathione: aqueous homocoupling of arylboronic acids under microwave irradiation
Rafael Luque, Babita Baruwati and Rajender S. Varma
Green Chem., 2010, 12, 1540-1543

Highly active and selective supported iron oxide nanoparticles in microwave-assisted N-alkylations of amines with alcohols
Camino Gonzalez-Arellano, Kenta Yoshida, Rafael Luque and Pratibha L. Gai
Green Chem., 2010, 12, 1281-1287

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New Impact Factor for Green Chemistry

Green Chemistry received a 5-year impact factor* of 6.056 in the 2010 Journal Citation Reports released by Thomson ISI this week.  This reveals steady growth in the impact of Green Chemistry over the last 5 years, reinforcing the importance and maturity of the Journal. 

Five years ago Green Chemistry had an impact factor of 3.255 and its 2010 impact factor of 5.472 demonstrates the Journal’s increasing quality, putting it in the top 20 of all multidisciplinary chemistry journals.

We would like to thank our Editorial and Advisory Board members and all of our authors and referees for their contributions; this support is vital to the continuing success of Green Chemistry.

The release of the 2010 impact factors also brought good news for RSC Publishing with a rise in the average impact factor across all journals and some great individual performances… read more here.

*A 5-year impact factor is the average number of times articles from a journal published in the past five years have been cited in the JCR year.  It is calculated by taking the number of citations in the JCR year to articles published in the preceding 5 years and dividing by the number of articles published in the previous 5 years.

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2011 Presidential Green Chemistry Challenge Awards

For the 16th year, the U.S. Environmental Protection Agency is recognizing pioneering chemical technologies developed by leading researchers and industrial innovators who are making significant contributions to pollution prevention in the United States. These prestigious awards recognise and promote research and development of less-hazardous alternatives to existing technologies that reduce or eliminate waste, particularly hazardous waste, in industrial production.

The Presidential Green Chemistry Challenge Awards are bestowed in five categories. Green Chemistry would like to congratulate the 2011 award winners:

  • Academic: Bruce H. Lipshutz, PhD, University of California, Santa Barbara
  • Small business: BioAmber, Inc., Plymouth, Minn.
  • Greener synthetic pathways: Genomatica, San Diego, Calif.
  • Greener reaction conditions: Kraton Performance Polymers, Inc., Houston, Texas
  • Designing greener chemicals: The Sherwin-Williams Company, Cleveland, Ohio

The awards were made on Monday night, June 20th at the Green Chemistry Challenge Awards ceremony in Washington D.C. as an opener to the 15th Annual Green Chemistry & Engineering Conference which is being held in concert with the 5th International Conference on Green & Sustainable Chemistry.

Green Chemistry Editor Sarah Ruthven is in Washington D.C. attending the Conferences; if you would like to meet her there please contact the Editorial Office.

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Green Solvents for Synthesis Conference Report

Conference report by Ewa Gebauer-Henke and Mark Muldoon 

The latest issue of Green Chemistry features papers from the “Green Solvents for Synthesis” conference that was held in October 2010. The bi-annual DECHEMA conference on green solvents has a reputation for attracting world leaders in the field of green chemistry and also for being held in beautiful locations in Germany. In 2008, the meeting was held in Friedrichshafen on Lake Constance, while this recent meeting was in the stunning town of Berchtesgaden in the German Bavarian Alps. 

Berchtesgaden

Berchtesgaden

Common themes throughout the conference were the use of ionic liquids, water, supercritical fluids (CO2 and water), CO2 expanded solvent systems and solvents from renewable sources. The meeting attracted a mix of industrialists, academics and graduate students from across the globe. Addressing the challenges in this area requires an interdisciplinary approach and attendees had a wide range of scientific and engineering backgrounds. The varied nature of the research presented at this meeting is clear from the contributions to this special issue. For those interested, the full conference programme can still be viewed online

One of the things that seemed clear from the discussions and debates among participants was that this field is continuing to mature and strive for higher standards. Many of the discussions related to improving the overall greenness of processes and topics such as “life cycle analysis” and “energy” were often raised. The claim that a solvent is intrinsically green in itself is not something that holds up to scrutiny and therefore researchers are having to demonstrate how solvents can be used to improve a process overall; for example by allowing catalyst separation and recycling or delivering improved reaction rates and product selectivity. 

The first lecture of the conference by Philip Jessop highlighted many of these issues and set the tone for the meeting. He outlined what he felt were the four “grand challenges” in the field of green solvents. Additionally, he had polled some of the leading academic researchers in the field of solvents prior to the conference, asking them what solvents they felt would have the biggest impact in the coming years. He then discussed the interesting results of this survey during his talk. The details of his lecture can be seen in his paper “Searching for green Solvents”. 

Ionic liquids have gathered a great deal of interest in the last decade or so and a number of talks highlighted how these solvents can be used to improve the greenness of a process. For example, Peter Wasserscheid delivered a very well received talk on the topic of ionic liquids in the field of heterogeneous catalysis. He discussed both SILP (“Supported Ionic Liquid Phase”) technology and SCILLs (Solid Catalysts with Ionic Iiquid Layers’).  For a number of years, researchers have been investigating the use of SILPs; which involves utilising a thin ionic liquid layer on a solid support to immobilise homogeneous transition metal catalysts. However, more recently, the SCILL approach has emerged, and this involves coating a “traditional” heterogeneous type catalyst with a layer of ionic liquid. The layer of ionic liquid can result in modification of the properties and performance of the heterogeneous catalyst. Peter’s talk illustrated well how ionic liquids could improve catalyst performance, therefore leading to a greener process.   

The conference chairman Prof Walter Leitner

The conference chairman Prof Walter Leitner

Continuous flow is often the best way to improve the efficiency of a process and “alternative solvent systems” can enable flow processes to be developed in ways not possible with conventional organic solvents. For example, Pedro Lozano described his group’s work on continuous flow enzymatic synthesis of biodiesel in mono- and multiphase systems using a combination of ionic liquids and supercritical CO2. While Lasse Greiner discussed the application of continuous flow systems for the synthesis of ionic liquids. He stressed how the transition from batch to continuous is only possible, when kinetic and thermodynamic studies have been carried out and showed how inline ATR-IR and calorimetry were powerful tools for such studies.  He demonstrated that the synthesis of ionic liquids can be realized with consistent product specifications; necessary in large scale production. 

The importance of in-situ techniques was also highlighted in Jan-Dierk Grunwald’s talk “Heterogeneous catalysis in dense carbon dioxide: opportunities, limitations and mechanistic understanding”.  He presented work on both catalytic hydrogenations and oxidations in dense and supercritical CO2. As part of these studies, ATR-IR was used to determine phase behaviour and X-ray adsorption spectroscopy to study the catalyst under high pressure reaction conditions. Developing an in-depth understanding of reactions in such solvents is important if they are to be fully exploited in an industrial setting. 

Ultimately, the aim of green chemistry is to have an impact in the real world and there are an increasing number of industrial processes that now utilise “alternative solvent” technologies. Several examples were highlighted during this conference including those that exploited supercritical water. This was particularly nice to see as this is a solvent system that is often labelled as an academic curiosity. More details of industrial scale processes for scH2O are described in the paper by Adschiri and co-workers. 

Solvents play a crucial role to vast number of processes and they are therefore key in developing more sustainable chemical processes. We would highly recommend that researchers interested in the important area of green chemistry attend a future DECHEMA green solvents conference. The next one is scheduled for early October 2012 (and starts just as Oktoberfest in finishing in Munich). As mentioned, these meetings bring together leaders from academia and industry from across a range of disciplines. In fact many of these leading figures not only discuss their research but also entertain the participants! At this past it closed with a traditional Bavarian banquet dinner where some very well known academics entertained the attendees singing that Leitner and Howdle classic “Always Use Green Chemistry Tools”; something, previously highlighted by Kathleen Too in this blog (October 15th entry). 

Ewa Gebauer-Henke
CAT Catalytic Center Postdoctoral Fellow
ITMC, RWTH Aachen University 

Mark Muldoon
School of Chemistry and Chemical Engineering
Queen’s University Belfast

Pictures, courtesy of Prof Kenneth Seddon (QUILL, Queen’s University of Belfast)

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