Author
John B. Moffat
Other affiliations: University of Tokushima, University of Guelph
Bio: John B. Moffat is an academic researcher from University of Waterloo. The author has contributed to research in topics: Catalysis & Oxidative coupling of methane. The author has an hindex of 37, co-authored 208 publications receiving 4838 citations. Previous affiliations of John B. Moffat include University of Tokushima & University of Guelph.
Papers published on a yearly basis
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TL;DR: The use of phosphorus compounds as catalysts has also accelerated in the last decade as mentioned in this paper, and it is not unexpected, then, to find that the use of compounds of phosphorus can also accelerate the development of catalysts.
Abstract: Although carbon is often considered as the dominant element in terms of covalent bond formation, phosphorus can undoubtedly be considered a s a serious competitor for this position [1]. Further, at least in principle, phosphorus is potentially capable of forming more compounds than carbon. For a variety of reasons, both academic and practical, interest in phosphorus compounds has increased markedly over the last decade. It is not unexpected, then, to find that the use of compounds of phosphorus as catalysts has also accelerated. Unfortunately, a s is often the case in science, the practice outruns the theory with such catalysts, but industrialists and academicians alike have recently displayed an enhanced interest in the mechanisms of catalytic activity on such catalysts.
173 citations
TL;DR: In this article, photoacoustic spectroscopy has been applied in the infrared region to the characterization of a number of heteropoly compounds which show interesting trends in activity and selectivity in the conversion of methanol to hydrocarbons.
144 citations
TL;DR: The properties of the heteropoly acids, 12-molybdophosphoric acid, 12 -tungstosilicic acid, and 12-Tungstophosphorus acid have been examined in this article.
139 citations
TL;DR: In this paper, a correlation has been observed between cation size, structural microporosity, and bulk secondary structure in monovalent cation effects on the bulk structure and surface properties of the A3PW 12O40 and A3PMo12O40 heteropoly systems.
128 citations
TL;DR: In this article, the behavior of a series of heteropoly compounds during temperature-programmed desorption (TPD) before and after exposure to pyridine has been examined and correlated with structural changes and variations in sorptive capacities of these materials.
125 citations
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TL;DR: A survey of the use of cerium oxide and CeO2-containing materials as oxidation and reduction catalysts is presented in this paper, with a special focus on catalytic interaction with small molecules such as hydrogen, carbon monoxide, oxygen, and nitric oxide.
Abstract: Over the past several years, cerium oxide and CeO2-containing materials have come under intense scrutiny as catalysts and as structural and electronic promoters of heterogeneous catalytic reactions. Recent developments regarding the characterization of ceria and CeO2-containing catalysts are critically reviewed with a special focus towards catalyst interaction with small molecules such as hydrogen, carbon monoxide, oxygen, and nitric oxide. Relevant catalytic and technological applications such as the use of ceria in automotive exhaust emission control and in the formulation of SO x reduction catalysts is described. A survey of the use of CeO2-containing materials as oxidation and reduction catalysts is also presented.
3,077 citations
2,514 citations
TL;DR: This review presents in brief the history of adsorption and highlights the progress in theoretical description of the phenomenon under consideration, as well as presenting some of the latest important results and giving a source of up-to-date literature on it.
1,799 citations
TL;DR: It is considered more feasible that the rate-deter-mining step is the cleavage of the C-H bond at the R-carbon atom, and the active site consists of an ensemble of metallic Auatoms and a cationic Au.
Abstract: ion from a primary OH group of glyc-erol. 223,231 A similar mechanism was proposed manyyears ago for alcohol oxidation on Pt/C, involving asecond step, the transfer of a hydride ion to the Ptsurface (Scheme 11). 8,87,237 We consider it more feasible that the rate-deter-mining step is the cleavage of the C-H bond at theR-carbon atom. A similar mechanism is now generallyaccepted for Au electrodes (Scheme 12). 238 Despite thestructural differences between Au nanoparticles andan extended Au electrode surface, there are alsosimilarities, such as the critical role of aqueousalkaline medium and the absence of deactivation dueto decomposition products (CO and C x H y frag-ments). 239,240 An important question is the nature of active siteson Au nanoparticles. Electrooxidation of ethanol onAu nanoparticles supported on glassy carbon re-quired the partial coverage of Au surface by oxides. 241 Another analogy might be the model proposed for COoxidation. 219,242,243 According to this suggestion, theactive site consists of an ensemble of metallic Auatoms and a cationic Au
1,784 citations
TL;DR: In this article, the infrared spectral performance of N x O y species observed on oxide surfaces [N2O, NO−, NO, (NO)2, N2O3, NO+, NO2 − (different nitro and nitrito anions), NO2, n2O4, N 2O5, NO2 and NO3 − (bridged, bidentate, and monodentate nitrates)] is considered.
Abstract: The infrared spectral performance of the N x O y species observed on oxide surfaces [N2O, NO−, NO, (NO)2, N2O3, NO+, NO2 − (different nitro and nitrito anions), NO2, N2O4, N2O5, NO2, and NO3 − (bridged, bidentate, and monodentate nitrates)] is considered. The spectra of related compounds (N2, H-, and C-containing nitrogen oxo species, C─N species, NH x species) are also briefly discussed. Some guidelines for spectral identification of N x O y adspecies are proposed and the transformation of the nitrogen oxo species on catalyst surfaces are regarded.
1,367 citations