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  1. No Access

    Article

    The Genesis and Development of the Commercial BP Doubly Promoted Catalyst for Ammonia Synthesis

    In the 1970s BP started develo** a new catalyst for ammonia synthesis which in final form comprises ruthenium, two promoters and a graphitised carbon support. This became the first new catalyst for ammonia s...

    David E. Brown, Terry Edmonds, Richard W. Joyner, John J. McCarroll… in Catalysis Letters (2014)

  2. No Access

    Article

    Synthesis, Structure, and Reactivity of Iron-Sulfur Species in Zeolites

    Previous studies have shown that a variety of iron-oxo species, including nanoclusters and dimers, can be formed within the pore structure of ZSM-5 and other porous materials. We report that these species can ...

    Richard W. Joyner, Michael Stockenhuber, Olga P. Tkachenko in Catalysis Letters (2003)

  3. No Access

    Article

    The effect of pre-sulfiding of catalysts for the vapour phase catalytic synthesis of thiophenes

    A study of catalyst pre-sulfiding for the synthesis of 3-methylthiophene from 2-methylbutanol and carbon disulfide over potassium-promoted chromia–alumina has been performed. Pretreatment with CS2 results in enha...

    Barry W.L. Southward, Graham J. Hutchings, Richard W. Joyner… in Catalysis Letters (2000)

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    Article

    Comments on the mechanism of the vapour‐phase catalytic synthesis of thiophenes

    A study of the synthesis of thiophene from the reaction of butanol and CS2 over potassium‐promoted Cr2O3/γ‐Al2O3 has been performed by examination of the reactivity of model intermediates. This study indicates th...

    Barry W.L. Southward, Lance S. Fuller, Graham J. Hutchings… in Catalysis Letters (1998)

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    Article

    Methane oxidation using Au/MgO catalysts

    A series of Au/MgO(0.04-15 wt%) catalysts have been investigated for the oxidation of methane. Detailed electron microscopy and Mössbauer spectroscopy studies show that two distinct Au morphologies can be obse...

    Keith Blick, Thanos D. Mitrelias, Justin S.J. Hargreaves… in Catalysis Letters (1998)

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    Article

    An HREM study of the WO3/TiO2 monolayer catalyst system. Proposals for the overlayer structure

    High resolution electron microscopy (HREM) has been used to characterise the WO3/TiO2 (anatase) catalyst system. Comparisons between pure samples of TiO2 in the uncalcined and calcined states with titania in the ...

    Andy Burrows, Christopher J. Kiely, Richard W. Joyner… in Catalysis Letters (1996)

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    Article

    Ambient temperature CO oxidation using copper manganese oxide catalysts prepared by coprecipitation: effect of ageing on catalyst performance

    Copper manganese oxides are prepared using a coprecipitation procedure and studied for the oxidation of CO at ambient temperature. In particular, the effect of the ageing tune, i.e. the time that the precipita...

    Graham J. Hutchings, Ali A. Mirzaei, Richard W. Joyner… in Catalysis Letters (1996)

  8. No Access

    Chapter

    Methanol Oxidation Over Oxide Catalysts

    The catalytic partial oxidation of methane to methanol has proved to be an extremely demanding reaction. It is clearly important that methanol should be stable over any potential catalysts, so a systematic stu...

    Stuart H. Taylor, Justin S. J. Hargreaves… in Methane and Alkane Conversion Chemistry (1995)

  9. No Access

    Chapter

    A Study of the Iron/Sodalite Catalyst for the Partial Oxidation of Methane to Methanol

    The synthesis, characterisation and reactivity of an iron/sodalite catalyst for the partial oxidation of methane to methanol are described and discussed. In a limited temperature range, ca. 410°C, and at 34 ba...

    Steven Betteridge, C. Richard A. Catlow… in Methane and Alkane Conversion Chemistry (1995)

  10. No Access

    Article

    Stoichiometric hydrogenation of ethene on Rh(111); mechanism, importance of weakly adsorbed ethene, and relationship to homogeneous catalysis

    The hydrogenation of ethene is an important reaction in heterogeneous catalysis and, despite its apparent simplicity, many aspects of the reaction mechanism remain unclear. By contrast, the mechanism using hom...

    Michael Bowker, John L. Gland, Richard W. Joyner, Yongxue Li… in Catalysis Letters (1994)

  11. No Access

    Article

    Preparation, characterisation and activity of an iron/sodalite catalyst for the oxidation of methane to methanol

    An iron sodalite catalyst similar to that reported to have good selectivity for the oxidation of methane to methanol by Lyons et al. has been prepared, tested and characterised. In a limited range of temperatu...

    Steven Betteridge, C. Richard A. Catlow, David H. Gay… in Topics in Catalysis (1994)

  12. No Access

    Article

    Nature, distribution and reactivity of copper species in over-exchanged Cu-ZSM-5 catalysts: an XPS/XAES study

    Cu-ZSM-5 catalysts prepared by “over-exchange” (degree of exchange = 130%) and by impregnation have been studied by X-ray photoelectron spectroscopy (XPS) and X-ray excited Auger spectroscopy (XAES). In both p...

    Efim S. Shpiro, Wolfgang Grünert, Richard W. Joyner, Galina N. Baeva in Catalysis Letters (1994)

  13. No Access

    Article

    Structure sensitivity of CO oxidation over rhodium. Reply to comments by Fisher, Peden, Oh and Goodman

    Michael Bowker, Quanmin Guo, Yongxue Li, Richard W. Joyner in Catalysis Letters (1993)

  14. No Access

    Article

    Structure sensitivity in CO oxidation over rhodium

    The rates of CO oxidation on the (110) and (111) planes of rhodium have been directly compared using a thermal molecular beam reactor. When the surfaces are largely covered by CO the reaction rate is the same ...

    Michael Bowker, Quanmin Guo, Yongxue Li, Richard W. Joyner in Catalysis Letters (1993)

  15. No Access

    Chapter

    Elementary Reaction Steps in Heterogeneous Catalysis

    Heterogeneous catalysis is rapidly develo** from a black box technology employed by the chemical engineer and becoming a frontier area of modern physical science. Progress is encouraged by parallel developme...

    Richard W. Joyner, Rutger A. van Santen in Elementary Reaction Steps in Heterogeneous… (1993)

  16. No Access

    Chapter

    Applications of Synchrotron Radiation in Catalysis

    Synchrotron radiation is finding increasing application in catalytic studies. The properties of synchrotron radiation which make it useful in catalytic studies are first discussed and the nature of the interac...

    Richard W. Joyner in Elementary Reaction Steps in Heterogeneous Catalysis (1993)

  17. No Access

    Article

    Alloying in platinum-based catalysts for gasoline reforming: A general structural proposal

    Platinum/alumina catalysts have been used for many years in the process of gasoline octane upgrading normally referred to as reforming. It is now standard industrial practice to add another element to the cata...

    Richard W. Joyner, Efim S. Shpiro in Catalysis Letters (1991)

  18. No Access

    Article

    Ethane interaction with Pt-Cr/H-ZSM-5 catalysts, studied by EXAFS

    The effect of high temperature ethane treatment on the dispersion and structure of a Pt-Cr/H-ZSM-5 catalyst has been studied by EXAFS and XPS. At the temperature where ethane aromatisation occurs, (T=820 K), redi...

    Richard W. Joyner, Efim S. Shpiro, Peter Johnston, Khabib M. Minachev… in Catalysis Letters (1991)

  19. No Access

    Chapter

    Introduction to the use of Particle Beam Techniques in Heterogeneous Catalysis

    Heterogeneous catalysis finds very widespread application and is of profound academic interest as well as major industrial importance. This brief chapter provides an introduction to some of the concepts of int...

    Richard W. Joyner in Fundamental Aspects of Heterogeneous Catal… (1991)

  20. No Access

    Chapter

    Applications of X-ray Absorption Spectroscopy in Catalysis

    The X-ray absorption edge jump, which arises when the energy of a photon beam becomes just sufficient to excite core electrons into the continuum, is well known and understood. In 1920, Fricke and Hertz separa...

    Richard W. Joyner in Fundamental Aspects of Heterogeneous Catal… (1991)

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