Author Archive

Gold improves photovoltaic cell efficiency

Teams from India, the US and Thailand have studied the mechanism of the catalytic activity of gold nanoparticles in semiconducting zinc oxide/gold nanocomposites used in photocatalysis and dye-sensitised solar cells.

The study was carried out to better understand the charge-transfer process at the semiconductor/metal interface to optimise the catalysts’ performance.

The team found that the gold nanocomposites improve the energy conversion efficiency of the solar cells compared to zinc oxide nanoparticles.

Read the PCCP paper today:

Photoselective excited state dynamics in ZnO–Au nanocomposites and their implications in photocatalysis and dye-sensitized solar cells
S Sarkar, A Makhal, T Bora, S Baruah, J Dutta and S Kumar Pal
Phys. Chem. Chem. Phys., 2011, DOI: 10.1039/c1cp20892f

PV cell

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PCCP themed issue: Fragment and Localized Orbital Methods in Electronic Structure Theory

PCCP themed issue:
Fragment and Localized Orbital Methods in Electronic Structure Theory
Guest Editors:
Gregory Beran (University of California at Riverside)
So Hirata (University of Illinois at Urbana-Champaign)

PCCP is delighted to announce the high-profile themed issue ‘Fragment and Localized Orbital Methods in Electronic Structure Theory’. It is our pleasure to invite you to submit to this themed issue.

The themed issue will be published in PCCP in 2012 and will be displayed at relevant international conferences in summer 2012 to maximise the visibility of the work published.

Deadline for Submissions: 28 November 2011

With broad and increasing interest in condensed-phase chemistry and physics, the past few years have seen remarkable progress in the development and application of new, accurate electronic structure methods that are applicable to chemistry in solution, molecular crystals, and biological systems. These achievements stem from both the development of new approaches for handling the large length-scales inherent in such systems (e.g. divide-and-conquer schemes and local correlation methods) and on new physical insights and algorithms that reduce the steep computational cost of calculating the important physical interactions accurately (e.g. symmetry-adapted perturbation theory). The combination of these approaches is effecting a rapid scientific transformation in which accurate quantum chemistry predictions are becoming feasible for complex systems.

By gathering works from these different areas, this themed issue will serve as a focal point that will highlight the tremendous progress that has been made and will help foster new ideas for future advances. The issue plans to cover both the latest methodological advances in the area and state-of-the-art applications to molecular crystals, proteins, nanomaterials, molecular excited states in solutions, and much more.

Manuscripts can be submitted in any reasonable format using our online submissions service. Submissions should be high quality manuscripts of original, unpublished research. Please indicate upon submission that your manuscript is intended for this themed issue.

Submit to this themed issue

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PCCP themed issue: Ultrafast Chemical Dynamics

PCCP themed issue: Ultrafast Chemical Dynamics
Guest Editors:
Neil T. Hunt (University of Strathclyde)
Klaas Wynne (University of Glasgow)

PCCP is delighted to announce the high-profile themed issue ‘Ultrafast Chemical Dynamics’. It is our pleasure to invite you to submit to this themed issue.

The themed issue will be published in PCCP in 2012 and will be displayed at relevant international conferences to maximise the visibility of the work published.

Deadline for Submissions: 14 November 2011

This themed issue will encompass the current state-of-the-art in ultrafast spectroscopy and its application to the chemical sciences. This field has made significant progress in recent years and now includes femtosecond X-ray techniques, multidimensional infrared and visible spectroscopy, terahertz spectroscopies, and surface-sensitive techniques with physical applications being found in gas, liquid, and solid phases covering a broad range of time and length scales.

Topics that will be covered include:

  • ultrafast dynamics of reaction in proteins
  • ultrafast structure and dynamics of liquids and solutions
  • ultrafast chemical processes at interfaces
  • ultrafast dynamics of electronically excited states
  • ultrafast atomic structure and dynamics in the solid state (fsXrays)

Manuscripts can be submitted in any reasonable format using our online submissions service. Submissions should be high quality manuscripts of original, unpublished research. Please indicate upon submission that your manuscript is intended for this themed issue.

Submit a paper to the Ultrafast Chemical Dynamics themed issue

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Artificial Photosynthesis Conference – early bird registration until 1 July 2011

Artificial Photosynthesis: Faraday Discussion 155
5 – 7 September 2011
Edinburgh, UK

Early bird registration and poster abstract deadline – 01 July 2011
Registration deadline – 05 August 2011

Submit a poster abstract for consideration or register for this exciting conference today!

Confirmed speakers

• Graham Fleming, University of California, Berkeley, USA
• Sir Richard Friend FRS, University of Cambridge, UK
• Michael Graetzel, Ecole Polytechnique Fédérale de Lausanne, Switzerland
• Dirk Guldi, University of Erlangen , Germany
• Devens Gust, Arizona State University, USA
• Osamu Ishitani, Tokyo Institute of Technology, Japan
• Tom Mallouk, Pennsylvania State University, USA
• Stefan Matile, University of Geneva, Switzerland
• Garry Rumbles, National Renewable Energy Laboratory, USA
• Stenbjörn Styring, Uppsala University, Sweden
• Licheng Sun, KTH Royal Institute of Technology, Sweden

There is a growing conviction that the only real prospect for our long-term energy provision relies on the ability to collect and store sunlight in the form of chemical potential. The need for alternative fuels and reduction of excess carbon dioxide left over from our era of fossil fuel consumption, focuses the attention on the design of effective artificial photosynthetic systems. This is a growing global problem and it will soon become the dominant scientific issue.

Applying new knowledge to old problems: FD155 will focus on possible solutions to long-standing problems in the development of artificial synthesis. This topical and important area of science covers many disciplines. The combination of biology, chemistry, physics and theory makes for an exciting blend of discussion points.

Themes

• Electronic energy transfer
• Fuel production / carbon dioxide reduction
• Oxygen evolution
• Integrated photo-systems
• Electron transfer

FD155

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PCCP Poster Prizes: Bunsentagung 2011

We are delighted to announce the winners of the PCCP Poster Prizes from this year’s Bunsentagung.

The 2011 Bunsentagung on the topic “Analysis and Control of Ultrafast Photoinduced Reactions” was held from 2-4 June 2011, at the Free University Berlin, Germany.

The PCCP Poster Prize winners were:

  • Coverage and temperature dependent isomerization behavior of tetra-tert-butyl-imine on Au(111)
    F. Leyssner, M. Koch, S. Meyer, Y. Luo, R. Haag, P. Tegeder, Freie Universität Berlin/D
  • Zur Beziehung von Sauerstoffsreduktionskinetik und Oberflächenchemie an (La,Sr)(Co2Fe)O3-x Elektroden auf festen Ionenleitern
    G. Rupp, M. Kubicek, A. Limbeck, J. Fleig, Technische Universität Wien/A
  • Development of a neural network potential-energy surface for the water dimer
    T. Morawietz, V. Sharma, J. Behler, Ruhr-Universität Bochum/D

winners

coverThe winners were all presented with a PCCP Prize certificate, as well as a financial award. PCCP will be awarding further Poster Prizes over the summer so watch this space!

PCCP were also pleased to publish a themed issue in association with this year’s Bunsentagung – take a look today:

Analysis and Control of Ultrafast Photon-Induced Reactions
Phys. Chem. Chem. Phys., 2011, 13, Issue 19
Guest Editor: Eckart Ruhl

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Cleaner exhaust gases

Teams from The Netherlands, France and Sweden have studied the structure of the surface of a catalyst used to clean vehicle exhaust gases to understand the process taking place at a molecular level. Palladium catalysts are used to oxidise carbon monoxide to carbon dioxide in vehicle exhausts. Studying their active site is important to improve their efficiency.

Two different oxides form on the catalyst’s surface during carbon monoxide oxidation, depending on the pressure and temperature conditions. The team analysed these oxides and found that the highest carbon dioxide production occurred when an oxide phase was present on the Pd(100) surface.

Read the PCCP in full:
Surface structure and reactivity of Pd(100) during CO oxidation near ambient pressures
R van Rijn, O Balmes, A Resta, D Wermeille, R Westerstrom, J Gustafson, R Felici, E Lundgren and J W M Frenken
Phys. Chem. Phys. Chem., 2011, DOI: 10.1039/c1cp20989b

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PCCP themed issue: Hydrogen Interactions with Diamond

Outside coverPCCP is delighted to present issue 24, which includes a collection of articles on the theme of Hydrogen Interactions with Diamond.

The issue was Guest Edited by John Foord (University of Oxford) and Alon Hoffman (Technion Inst. Israel), and brings important areas of this large body of research together in a single issue, which focuses on the basic physical science which underlies the interaction of hydrogen with diamond materials.

Take a look at this great themed collection on Hydrogen Interactions with Diamond today!

Want to read more about our themed issues? Please visit the ‘Themed Issues’ page on our website.

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PCCP Most-Read Articles for Q1 2011

Top 25 most-read PCCP articles for Q1

Air and water stable ionic liquids in physical chemistry
Frank Endres and Sherif Zein El Abedin
DOI: 10.1039/B600519P

Colloidal metal nanoparticles as a component of designed catalyst
Chun-Jiang Jia and Ferdi Schüth
DOI: 10.1039/C0CP02680H

Titania supported gold nanoparticles as photocatalyst
Ana Primo, Avelino Corma and Hermenegildo García
DOI: 10.1039/C0CP00917B

Density functional theory for transition metals and transition metal chemistry
Christopher J. Cramer and Donald G. Truhlar
DOI: 10.1039/B907148B

Controlled nanostructures for applications in catalysis
Ferdi Schüth
DOI: 10.1039/C1CP90005F

Theory of gold on ceria
Changjun Zhang, Angelos Michaelides and Stephen J. Jenkins
DOI: 10.1039/C0CP01123A

Studying disorder in graphite-based systems by Raman spectroscopy
M. A. Pimenta, G. Dresselhaus, M. S. Dresselhaus, L. G. Cançado, A. Jorio and R. Saito
DOI: 10.1039/B613962K

Towards large-scale, fully ab initio calculations of ionic liquids
Ekaterina I. Izgorodina
DOI: 10.1039/C0CP02315A

Fullerene derivative acceptors for high performance polymer solar cells
Youjun He and Yongfang Li
DOI: 10.1039/C0CP01178A

Catalysis by metal–organic frameworks: fundamentals and opportunities
Marco Ranocchiari and Jeroen Anton van Bokhoven
DOI: 10.1039/C0CP02394A

New nanostructured heterogeneous catalysts with increased selectivity and stability
Ilkeun Lee, Manuel A. Albiter, Qiao Zhang, Jianping Ge, Yadong Yin and Francisco Zaera
DOI: 10.1039/C0CP01688H

Processes in chemical reactions related to the environment, energy and materials sciences
Li-Jun Wan
DOI: 10.1039/C0CP90160A

The role of molecular modeling in confined systems: impact and prospects
Keith E. Gubbins, Ying-Chun Liu, Joshua D. Moore and Jeremy C. Palmer
DOI: 10.1039/C0CP01475C

‘Shape effects’ in metal oxide supported nanoscale gold catalysts
Matthew B. Boucher, Simone Goergen, Nan Yi and Maria Flytzani-Stephanopoulos
DOI: 10.1039/C0CP02009E

Optical imaging of excited-state tautomerization in single molecules
Anna M. Chizhik, Regina Jäger, Alexey I. Chizhik, Sebastian Bär, Hans-Georg Mack, Marcus Sackrow, Catrinel Stanciu, Alexey Lyubimtsev, Michael Hanack and Alfred J. Meixner
DOI: 10.1039/C0CP02228D

CO bond cleavage on supported nano-gold during low temperature oxidation
Albert F. Carley, David J. Morgan, Nianxue Song, M. Wyn Roberts, Stuart H. Taylor, Jonathan K. Bartley, David J. Willock, Kara L. Howard and Graham J. Hutchings
DOI: 10.1039/C0CP01852J

The mystery of gold’s chemical activity: local bonding, morphology and reactivity of atomic oxygen
Thomas A. Baker, Xiaoying Liu and Cynthia M. Friend
DOI: 10.1039/C0CP01514H

Bimetallic Pt–Au nanocatalysts electrochemically deposited on graphene and their electrocatalytic characteristics towards oxygen reduction and methanol oxidation
Yaojuan Hu, Hua Zhang, Ping Wu, Hui Zhang, Bo Zhou and Chenxin Cai
DOI: 10.1039/C0CP01998D

Theoretical investigation of formation mechanism of bipyridyl molecule on Ni(111) surface: implication for synthesis of N-doped graphene from pyridine
Hui Feng, Zhaosheng Qian, Chen Wang, Congcong Chen and Jianrong Chen
DOI: 10.1039/C0CP02441D

Layer-by-layer assembly as a versatile bottom-up nanofabrication technique for exploratory research and realistic application
Katsuhiko Ariga, Jonathan P. Hill and Qingmin Ji
DOI: 10.1039/B700410A

A photo-induced electron transfer study of an organic dye anchored on the surfaces of TiO2 nanotubes and nanoparticles
Marcin Ziółek, Ignacio Tacchini, M. Teresa Martínez, Xichuan Yang, Licheng Sun and Abderrazzak Douhal
DOI: 10.1039/C0CP01898H

Molecular states of water in room temperature ionic liquids
L. Cammarata, S. G. Kazarian, P. A. Salter and T. Welton
DOI: 10.1039/B106900D

Carbon materials for supercapacitor application
Elzbieta Frackowiak
DOI: 10.1039/B618139M

Electronic coherences and vibrational wave-packets in single molecules studied with femtosecond phase-controlled spectroscopy
Richard Hildner, Daan Brinks, Fernando D. Stefani and Niek F. van Hulst
DOI: 10.1039/C0CP02231D

Aspect ratio dependence on surface enhanced Raman scattering using silver and gold nanorod substrates
Christopher J. Orendorff, Latha Gearheart, Nikhil R. Jana and Catherine J. Murphy
DOI: 10.1039/B512573A

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PCCP featured in Materials Today: Super fit enzymes

A PCCP paper on improving enzyme activity using nanoporous materials has featured in Materials Today this week.

The paper by Lung-Ching Sang and Marc-Olivier Coppens discusses how proteins adsorbed in nanoporous silica SBA-15 and propylated C3SBA-15 are perturbed to a different extent, leading to different enzymatic activity.

Read the PCCP paper in full:
Effects of surface curvature and surface chemistry on the structure and activity of proteins adsorbed in nanopores
Lung-Ching Sang and Marc-Olivier Coppens
Phys. Chem. Chem. Phys., 2011, 13, 6689-6698
DOI: 10.1039/C0CP02273J

This paper was part of the PCCP themed issue on Materials innovation through interfacial physics and chemistrytake a look at the whole issue today!

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Hot Perspective article: chiral secondary organic aerosol particles from the Amazon

Secondary organic aerosol particles from the central Amazonian Basin are discovered to be chiral in the climate-relevant size range.

chiral aerosols

Read this ‘HOT’ Perspective today:
On molecular chirality within naturally occurring secondary organic aerosol particles from the central Amazon Basin
Imee Su Martinez, Mark D. Peterson, Carlena J. Ebben, Patrick L. Hayes, Paulo Artaxo, Scot T. Martin and Franz M. Geiger
DOI: 10.1039/C1CP20428A

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