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  1. No Access

    Chapter

    PdAu Core–Shell Nanostructures as Visible-Light Responsive Plasmonic Photocatalysts

    is an emerging hot field for improving light-harvesting and promoting photon efficiency. The integration of noble metal nanostructures (Ag, Au) with active metals (Pd, Pt, Ru) in arrangement has been establ...

    Priyanka Verma, Robert Raja, Hiromi Yamashita in Core-Shell and Yolk-Shell Nanocatalysts (2021)

  2. No Access

    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)

  3. No Access

    Chapter

    Biomimetic Single-Site Heterogeneous Catalysts: Design Strategies and Catalytic Potential

    Enzymes catalyze the most fundamental reactions in organic chemistry from simple oxidations of straight chain alkanes to complex C–C bond forming reactions with exceptional selectivity. Mimicking the active si...

    David Xuereb, Joanna Dzierzak, Robert Raja in Heterogenized Homogeneous Catalysts for Fi… (2010)

  4. No Access

    Chapter

    Single-Site Heterogeneous Catalysts: Innovations, Advantages, and Future Potential in Green Chemistry and Sustainable Technology

    The advantages that flow from the availability of single-site heterogeneous catalysts are many. They facilitate the determination of the kinetics and mechanism of catalytic turnover and render accessible the e...

    Robert Raja, John Meurig Thomas in Model Systems in Catalysis (2010)

  5. No Access

    Article

    Single-site Biomimetic Amino Acid Complexes for the Benign Oxidation of Hydrocarbons and Alcohols

    Zeolite encapsulated amino acid complexes such as Fe-proline, Fe-histidine and Cu-valine have shown significant promise in the selective oxidation of hydrocarbons such as cyclohexane and benzylic alcohols. Thi...

    Joanna Dzierzak, Michael Lefenfeld, Robert Raja in Topics in Catalysis (2009)

  6. No Access

    Article

    Designed Nanoporous Solids for the Green Production of Vitamins, Fine Chemicals and Renewable Nylons

    Designed nanoporous solids are highly effective in facilitating shape-selective and regiospecific catalytic conversions in the synthesis of fine chemicals, pharmaceutical intermediates as well as in sustainabl...

    Robert Raja in Topics in Catalysis (2009)

  7. No Access

    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)

  8. No Access

    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)

  9. No Access

    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)

  10. No Access

    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)

  11. No Access

    Chapter

    On the Structure of Cobalt-Substituted Aluminophosphate Catalysts and Their Catalytic Performance

    Microporous, transition metal ion-substituted aluminophosphate molecular sieves have attracted considerable attention over the last decade owing to their shape-selective catalytic properties for both acid-cata...

    Gopinathan Sankar, Robert Raja in Nanostructured Catalysts (2003)

  12. No Access

    Article

    Towards an Environmentally Acceptable Heterogeneous Catalytic Method of Producing Adipic Acid by the Oxidation of Hydrocarbons in Air

    A survey is given of the catalytic methods potentially available for the production of adipic acid by the oxidation of readily available hydrocarbon precursors under environmentally benign conditions. Encourag...

    Robert Raja, Sang-Ok Lee, Manuel Sanchez-Sanchez, Gopinathan Sankar… in Topics in Catalysis (2002)

  13. No Access

    Article

    Redox solid catalysts for the selective oxidation of cyclohexane in air

    The selective oxidation of cyclohexane to cyclohexanol, cyclohexanone and adipic acid using molecular oxygen as the oxidant and at moderate temperatures (403 K) has been investigated over four different cobalt...

    Gopinathan Sankar, Robert Raja, John Meurig Thomas in Catalysis Letters (1998)