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Article
Open AccessZn Loading Effects on the Selectivity of PdZn Catalysts for CO2 Hydrogenation to Methanol
PdZn/TiO2 catalysts have been investigated for the hydrogenation of CO2 to methanol. Varying the ratio of Pd and Zn using TiO2 as a support has a dramatic effect on catalytic performance. Chemical vapour impregna...
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Article
Open AccessThe Role of Metal Nanoparticles in Promoting Photocatalysis by TiO2
In this review, we highlight the role played by metal nanoparticles (NPs) in photocatalytic oxidation with titania as a support. This is presented in two parts, namely, partial photo-oxidation in which an orga...
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Article
Open AccessCombination of Cu/ZnO Methanol Synthesis Catalysts and ZSM-5 Zeolites to Produce Oxygenates from CO2 and H2
Cu/ZnO methanol catalysts were deposited over several ZSM-5 acid zeolites to directly synthesise oxygenates (methanol and dimethyl ether) from a CO2/H2 feed. Catalysts were prepared by two different preparation m...
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Article
Open AccessCorrection to: Solvent Free Synthesis of PdZn/TiO2 Catalysts for the Hydrogenation of CO2 to Methanol
The article Solvent Free Synthesis of PdZn/TiO2 Catalysts for the Hydrogenation of CO2 to Methanol by Hasliza Bahruji, Jonathan Ruiz Esquius, Michael Bowker, Graham Hutchings, Robert D. Armstrong, Wilm Jones was ...
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Article
Open AccessSynergistic ultraviolet and visible light photo-activation enables intensified low-temperature methanol synthesis over copper/zinc oxide/alumina
Although photoexcitation has been employed to unlock the low-temperature equilibrium regimes of thermal catalysis, mechanism underlining potential interplay between electron excitations and surface chemical pr...
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Article
Influence of \(\hbox {TiO}_{2}\) structural properties on photocatalytic hydrogen gas production
A range of commercially produced \(\hbox {TiO}_{2}\) ...
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Article
Open AccessVOx/Fe2O3 Shell–Core Catalysts for the Selective Oxidation of Methanol to Formaldehyde
Efficient oxidation catalysts are important in many current industrial processes, including the selective oxidation of methanol to formaldehyde. Vanadium-containing catalysts have been shown to be effective se...
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Article
Open AccessSolvent Free Synthesis of PdZn/TiO2 Catalysts for the Hydrogenation of CO2 to Methanol
Catalytic upgrading of CO2 to value-added chemicals is an important challenge within the chemical sciences. Of particular interest are catalysts which are both active and selective for the hydrogenation of CO2 to...
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Article
Open AccessThe Role of Precursor States in Adsorption, Surface Reactions and Catalysis
Among the many concepts which have been developed in surface science and catalysis to explain the nature of adsorption, the role of weakly-held states, so-called precursor states, is one of the most important....
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Article
Rules for Selective Oxidation Exemplified by Methanol Selective Oxidation on Iron Molybdate Catalysts
A number of simple rules are proposed which dictate for high selectivity to formaldehyde during methanol oxidation on iron molybdate catalysts. The reaction is of the Mars–van Krevelen type, that is, it is su...
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Article
The Photocatalytic Window: Photo-Reforming of Organics and Water Splitting for Sustainable Hydrogen Production
Precious metal-titania materials make good catalysts for hydrogen production from a variety of organic substrates using sunlight. These substrates essentially act as reductants for water, by intercepting elect...
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J R H Ross (ed): Heterogeneous Catalysis: Fundamentals and Applications
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Article
Photocatalytic Hydrogen Production and Oxygenate Photoreforming
In this perspective the current state of photo-catalytic hydrogen production is considered, focusing especially on photo-reforming reactions. There are fundamental thermodynamic and kinetic limitations to dire...
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Surface Science Studies of Strong Metal-Oxide Interactions on Model Catalysts
Here we report on recent model studies of a phenomenon known in catalysis as the “Strong Metal-Support Interaction” (SMSI for short). Decoration of the surfaces of precious metal single crystals, films, and na...
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Article
Photocatalytic Reforming of Glycerol over Gold and Palladium as an Alternative Fuel Source
The photocatalytic reforming of glycerol to hydrogen over palladium and gold modified TiO2 catalysts is reported. The rate of hydrogen production exceeds that measured for the photoreforming of methanol over both...
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Article
On the Synergy Effect in MoO3–Fe2(MoO4)3 Catalysts for Methanol Oxidation to Formaldehyde
Methanol oxidation to formaldehyde was studied over a series of Fe–Mo–O catalysts with various Mo/Fe atomic ratio and the end compositions Fe2O3 and MoO3. The activity data show that the specific activity passes ...
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Article
The Selective Oxidation of Methanol on Iron Molybdate Catalysts
The role of Mo in the selective oxidation reaction is considered in some detail, focusing on the selective oxidation of methanol to formaldehyde. The reaction mechanism and kinetics will be described. It is no...
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Article
Surface Segregation in Iron Molybdate Catalysts
The high selectivity of iron molybdate catalysts for the production of formaldehyde from methanol is somewhat surprising in view of the very different behaviour of the individual oxides of Fe and Mo for this r...
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Article
Contrasting the Behaviour of MoO3 and MoO2 for the Oxidation of Methanol
The oxidation of methanol has been measured on MoO3 and MoO2. The properties of these two materials are interchangeable, depending upon the conditions in which the reaction is run. MoO3 produces high yields of fo...
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Article
Methanol oxidation on Au/TiO2 catalysts
We have investigated the adsorption and reaction of methanol with Au/TiO2 catalysts using a pulsed flow reactor, DRIFTS and TPD. The TiO2 (P25) surface adsorbed a full monolayer of methanol, much of it in a disso...
