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Catalysis By Metals

01 Jan 1962-
About: The article was published on 1962-01-01 and is currently open access. It has received 1204 citations till now. The article focuses on the topics: Catalysis.
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Journal ArticleDOI
TL;DR: In this paper, the authors compare and discuss recent experimental and theoretical results in the field of H2O-solid interactions, and emphasize studies of low (submonolayer) coverages of water on well-characterized, single-crystal surfaces of metals, semiconductors and oxides.

2,096 citations

Journal ArticleDOI
TL;DR: The current status of the heterogeneous catalysts field is discussed with an emphasis on the role of coupling theory and experiment and future challenges.
Abstract: Recent advances in the understanding of reactivity trends for chemistry at transition-metal surfaces have enabled in silico design of heterogeneous catalysts in a few cases. The current status of the field is discussed with an emphasis on the role of coupling theory and experiment and future challenges.

1,471 citations

Journal ArticleDOI
TL;DR: The hydrogen storage properties of MgH 2 are significantly enhanced by a proper engineering of the microstructure and surface as discussed by the authors, which gives remarkable improvement of absorption/desorption kinetics.

1,081 citations

Journal ArticleDOI
TL;DR: In this article, a critical review of the kinetics and selectivity of the Fischer-Tropsch synthesis (FTS) is given, focusing on reaction mechanisms and kinetics.
Abstract: A critical review of the kinetics and selectivity of the Fischer–Tropsch synthesis (FTS) is given. The focus is on reaction mechanisms and kinetics of the water–gas shift and Fischer–Tropsch (FT) reactions. New developments in the product selectivity as well as the overall kinetics are reviewed. It is concluded that the development of rate equations for the FTS should be based on realistic mechanistic schemes. Qualitatively, there is agreement that the product distribution is affected by the occurrence of secondary reactions (hydrogenation, isomerization, reinsertion, and hydrogenolysis). At high CO and H2O pressures, the most important secondary reaction is readsorption of olefins, resulting in initiation of chain growth processes. Secondary hydrogenation of α-olefins may occur and depends on the catalytic system and the process conditions. The rates of the secondary reactions increase exponentially with chain length. Much controversy exists about whether these chain-length dependencies stem from differe...

1,074 citations

Book
15 Aug 2006
TL;DR: In this article, it was shown that supported gold catalysts can affect the oxidation of carbon monoxide at or below ambient temperature, with high activity at sites at the gold support interface, with the support making a vital contribution.
Abstract: Despite occasional references in the older literature to the ability of gold to catalyze certain reactions, the metal has until recently had the reputation of being one of the least catalytically useful. The recent discovery that some supported gold catalysts can affect the oxidation of carbon monoxide at or below ambient temperature has, however, focused attention on the metal's ability in this respect. For oxidation of carbon monoxide at low temperature, catalysts comprising small (<5 nm) gold particles supported preferably on an oxide of the first transition series (e.g., TiO2, α-Fe2O3) are needed. Deposition–precipitation and coprecipitation are better methods than impregnation for this purpose and provide the desired intimacy of contact between metal and support. High activity may well originate at sites at the gold–support interface, with the support making a vital contribution. Stable activity can result by optimizing aging in solution during the preparation, and low calcination temperatures are ge...

984 citations