43 Result(s)

Article

A Significant Life Journey in Surface Science

This is a personal account of Professor Wyn Roberts’ life in science by someone in close personal and scientific contact with him as a lifelong friend. It covers “The Early Days”, “His Scholarly Instincts”, “H...

John Meurig Thomas in Topics in Catalysis (2016)

Article

Designing Catalysts for Tomorrow’s Environmentally Benign Processes

After first recalling some of the key challenges involved in meeting the demands for energy and chemicals by 2050, brief accounts are given of (a) the present scene in water oxidation photocatalysis with parti...

John Meurig Thomas in Topics in Catalysis (2014)

Article

Can a Single Atom Serve as the Active Site in Some Heterogeneous Catalysts?

We examine a number of distinct situations relating to heterogeneous catalysts where either a single atom (or ion), or a very small cluster of atoms functions as the locus of chemical turnover in various disti...

John Meurig Thomas, Zineb Saghi, Pratibha L. Gai in Topics in Catalysis (2011)

Article

Mono-, Bi- and Multifunctional Single-Sites: Exploring the Interface Between Heterogeneous and Homogeneous Catalysis

This mini-review contrasts the characteristics of traditional heterogeneous (solid) catalysts with those of homogeneous ones: the nature of the active sites in each case is very different, a fact well illustra...

John Meurig Thomas, Robert Raja in Topics in Catalysis (2010)

Article

A General Strategy for the Design of New Solid Catalysts for Environmentally Benign Conversions

After first outlining in qualitative terms progress made in predicting and modelling solids in general, a brief account is given of the substantial progress made in enumerating hypothetical open structures bas...

John Meurig Thomas, Juan Carlos Hernandez-Garrido, Robert G. Bell in Topics in Catalysis (2009)

Article

Preferential Clustering of Water Molecules During Hydration of the Ammonium Form of the Solid Acid Catalyst ZSM-5

Hydration of the ammonium form of the solid acid catalyst ZSM-5 is investigated by applying a technique developed recently for in situ solid-state NMR studies of adsorption processes. From high-resolution soli...

Mingcan Xu, Kenneth D. M. Harris, John Meurig Thomas in Catalysis Letters (2009)

Article

How Far is the Concept of Isolated Active Sites Valid in Solid Catalysts?

Oxide catalysts that have open structures and contain cations exhibiting usually just one or a few oxidation states, and those that are close-packed and contain transition metal ions in many different oxidatio...

John Meurig Thomas in Topics in Catalysis (2008)

Article

SPring-8 Technologies for the Design of Environmentally-friendly Catalysts and Photocatalysts

John Meurig Thomas in Topics in Catalysis (2008)

Article

The advantages and future potential of single-site heterogeneous catalysts

Using open-structure (nanoporous) solids, advantage may be taken of single-site catalytically active centres to effect an enormous range of conversions of organic compounds where regio-selectivity and shape-se...

John Meurig Thomas, Robert Raja in Topics in Catalysis (2006)

Article

Benign oxidants and single-site solid catalysts for the solvent-free selective oxidation of toluene

Two types of single-site heterogeneous catalysts have been designed so as to facilitate either the side-chain oxidation or ring-hydroxylation of toluene in O₂ (solvent-free) or by employing aqueous (H₂O₂) or orga...

Robert Raja, John Meurig Thomas, Valeria Dreyer in Catalysis Letters (2006)

Article

The tortuous tale of the catalytically active site

The emergence of the concept of the active site in heterogeneous catalysts is traced from the early, tentative view of H.S. Taylor in 1925 to the structurally well-defined active site (at αTiCl₃ prismatic faces) ...

John Meurig Thomas in Topics in Catalysis (2006)

Article

Ilya Moiseev: A Personal Note

John Meurig Thomas in Journal of Cluster Science (2005)

Article

Preface

Thomas Maschmeyer, Koos Jansen, John Meurig Thomas in Topics in Catalysis (2004)

Article

On the Similarity in Catalytic Activity of Homogeneous and Heterogeneous Cr(VI) Catalysts in the Decomposition of Cyclohexyl Hydroperoxide

Pyridinium dichromate, chromium trioxide and CrAlPO-5 showed a very similar selectivity pattern in the decomposition of cyclohexyl hydroperoxide. CrAPO-5 turned out to be a real heterogeneous catalyst, most li...

Wim Buijs, Robert Raja, John Meurig Thomas, Harry Wolters in Catalysis Letters (2003)

Article

A New Approach to the Design of Heterogeneous Single-Site Enantioselective Catalysts

We analyze the merits of an approach to the design of enantioselective catalysts that relies on constraining an anchored organometallic complex at the inner walls of mesoporous silica. Two distinct metal cente...

Matthew D. Jones, Robert Raja, John Meurig Thomas… in Topics in Catalysis (2003)

Article

The Extremely High Specificity of N-Methyldicyclohexylamine for the Production of the Large-Pore Microporous AFI Material

We describe a highly efficient synthesis of microporous aluminophosphate AlPO₄-5 and its heteroatom-substituted variants, using N-methyldicyclohexylamine as a structure-directing agent that, in addition, does not...

Manuel Sanchez-Sanchez, Gopinathan Sankar, Alexandra Simperler… in Catalysis Letters (2003)