Issue 6 now online!

Issue 6 of Catalysis Science & Technology is now online, and with an editorial by David Jackson (University of Glasgow), 2 Perspective review articles and 3 mini-reviews in addition to a great selection of original research it is well worth reading!

The issue also contains a truly brilliant cover image from Javier Pérez-Ramírez at ETH Zurich. The cover is called ‘The Hierarchical Zeolite Show, starring desilication’ and is based on their mini-review in the issue.

It shows an elephant and a lion performing tricks in circus ring, and as Professor Pérez-Ramírez explains ‘the post-synthetic modification of zeolites is like a circus, a variety of complementary tasks need to be orchestrated to offer a successful show’. See the pdf of the Issue 6 cover here, or read the article…

Design of hierarchical zeolite catalysts by desilication
Danny Verboekend and Javier Pérez-Ramírez
Catal. Sci. Technol., 2011, 1, 879-890

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2 Responses to “Issue 6 now online!”

  1. Our analogy of the circus is as follows:

    Research focused on zeolites has witnessed the development of an impressive number of post-synthetic modifications such as steam, acid, and base treatment, to establish changes in composition, acidity, stability, and porosity. Accordingly, we have thought of a zeolite circus since there is a variety of artists contrasting in behavior and skills.

    The last decade, particularly base leaching, i.e. desilication, has been in the spotlight (hence arena of the circus) since it dramatically enhances catalysts utilization by the introduction of a network of connected intra-crystalline mesopores. Therefore, in the post-synthetic modifications-show desilication is a star and is accordingly represented by the animal trainer; attending to its proud and prestigious nature within the circus circle. The various animals in the show represent the different zeolites, displaying the large versatility of desilication. In our particular illustration the size of the animal represents the Al content in the zeolites, i.e. the more aluminum in the zeolite crystal the larger the animal. The latter aspect deals with a key aspect, namely that desilication functions, besides for the optimal Al content (lion), also for Al-rich zeolites (elephant) and Al-deficient, hence Si-rich zeolites (mouse). Of course, this versatility also extends to other aspects as, for example, the number of zeolite frameworks for which the benefits of desilication have been reported.

    A specific tribute is represented by the man in blue. This person represents the other people working in the circus that enable the animal trainer to do his wonderful tricks in an impeccable scenario. With respect to the review he represents the additional treatments that can be performed in combination with desilication to optimize the efficiency. For example, in the review we highlight that an additional acid wash should be used after desilication of Al-rich zeolites, to remove the formed debris. This is represented directly by the man in blue with the broom cleaning the excrement of the elephant. Similarly, we can envisage the builders that set-up the circus as the dealumination treatment that can be performed prior to desilication (these are not shown). We consider the man in blue of key importance since he represents a key message from our review: in order to make desilication as efficient, versatile, and controllable as it is today, we need the support from other treatments.

  2. […] Did you see the cover of Issue 6? Read the explanation of the artwork by one of the authors in our earlier blog: […]

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