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- W2055178297 endingPage "1743" @default.
- W2055178297 startingPage "1716" @default.
- W2055178297 abstract "The activity of supported gold particles for a number of oxidations and hydrogenations starts to increase dramatically as the size falls below ~3 nm. This is accompanied by an increased propensity to chemisorption, especially of oxygen and hydrogen. The explanation for these phenomena has to be sought in kinetic analysis that connects catalytic activity with the strength and extent of chemisorption of the reactants, the latter depending on the electronic structure of the gold atoms constituting the active centre. Examination of the changes to the utilisation of electrons as particle size is decreased points to loss of metallic character at about 3 nm, as energy bands are replaced by levels, and a band gap appears. Detailed consideration of the Arrhenius parameters (E and ln A) for CO oxidation points clearly to a step-change in activity at the point where metallic character is lost, as opposed to there being a monotonic dependence of rate on a physical property such as the fraction of atoms at corners or edges of particles. The deplorable scarcity of kinetic information on other reactions makes extension of this analysis difficult, but non-metallic behaviour is an unavoidable property of very small gold particles, and therefore cannot be ignored when seeking to explain their exceptional activity." @default.
- W2055178297 created "2016-06-24" @default.
- W2055178297 creator A5067071595 @default.
- W2055178297 date "2012-02-09" @default.
- W2055178297 modified "2023-10-02" @default.
- W2055178297 title "Chemisorption and Reactions of Small Molecules on Small Gold Particles" @default.
- W2055178297 cites W1513445982 @default.
- W2055178297 cites W1734743771 @default.
- W2055178297 cites W1963835690 @default.
- W2055178297 cites W1967627871 @default.
- W2055178297 cites W1968944314 @default.
- W2055178297 cites W1972620042 @default.
- W2055178297 cites W1978136721 @default.
- W2055178297 cites W1981554997 @default.
- W2055178297 cites W1982357025 @default.
- W2055178297 cites W1989748300 @default.
- W2055178297 cites W1990425331 @default.
- W2055178297 cites W1992277893 @default.
- W2055178297 cites W1993627986 @default.
- W2055178297 cites W1997176883 @default.
- W2055178297 cites W2000910202 @default.
- W2055178297 cites W2002731196 @default.
- W2055178297 cites W2006014999 @default.
- W2055178297 cites W2006222261 @default.
- W2055178297 cites W2006769266 @default.
- W2055178297 cites W2010393215 @default.
- W2055178297 cites W2014411536 @default.
- W2055178297 cites W2014528698 @default.
- W2055178297 cites W2015865951 @default.
- W2055178297 cites W2016889766 @default.
- W2055178297 cites W2019979987 @default.
- W2055178297 cites W2022227051 @default.
- W2055178297 cites W2022480535 @default.
- W2055178297 cites W2026992156 @default.
- W2055178297 cites W2027738536 @default.
- W2055178297 cites W2028643835 @default.
- W2055178297 cites W2032190443 @default.
- W2055178297 cites W2035135701 @default.
- W2055178297 cites W2035734886 @default.
- W2055178297 cites W2035902790 @default.
- W2055178297 cites W2036999197 @default.
- W2055178297 cites W2037071405 @default.
- W2055178297 cites W2042141297 @default.
- W2055178297 cites W2043375781 @default.
- W2055178297 cites W2043740651 @default.
- W2055178297 cites W2048115891 @default.
- W2055178297 cites W2048433095 @default.
- W2055178297 cites W2050843836 @default.
- W2055178297 cites W2051020295 @default.
- W2055178297 cites W2051208863 @default.
- W2055178297 cites W2055354163 @default.
- W2055178297 cites W2058174235 @default.
- W2055178297 cites W2060816744 @default.
- W2055178297 cites W2061916215 @default.
- W2055178297 cites W2062788058 @default.
- W2055178297 cites W2064474620 @default.
- W2055178297 cites W2065308832 @default.
- W2055178297 cites W2066112079 @default.
- W2055178297 cites W2066738777 @default.
- W2055178297 cites W2067116378 @default.
- W2055178297 cites W2067160237 @default.
- W2055178297 cites W2067237447 @default.
- W2055178297 cites W2067642063 @default.
- W2055178297 cites W2068397141 @default.
- W2055178297 cites W2068670668 @default.
- W2055178297 cites W2069114139 @default.
- W2055178297 cites W2073370170 @default.
- W2055178297 cites W2080390415 @default.
- W2055178297 cites W2081292041 @default.
- W2055178297 cites W2081607606 @default.
- W2055178297 cites W2082163210 @default.
- W2055178297 cites W2084265004 @default.
- W2055178297 cites W2088680161 @default.
- W2055178297 cites W2088716917 @default.
- W2055178297 cites W2090663322 @default.
- W2055178297 cites W2091348033 @default.
- W2055178297 cites W2091768932 @default.
- W2055178297 cites W2092492380 @default.
- W2055178297 cites W2093419677 @default.
- W2055178297 cites W2093521294 @default.
- W2055178297 cites W2102985154 @default.
- W2055178297 cites W2105754340 @default.
- W2055178297 cites W2133337717 @default.
- W2055178297 cites W2136760958 @default.
- W2055178297 cites W2137605594 @default.
- W2055178297 cites W2141827370 @default.
- W2055178297 cites W2143164233 @default.
- W2055178297 cites W2171340645 @default.
- W2055178297 cites W2274715462 @default.
- W2055178297 cites W2312701908 @default.
- W2055178297 cites W2314956796 @default.
- W2055178297 cites W2332163773 @default.
- W2055178297 cites W2332388360 @default.
- W2055178297 cites W2353375319 @default.
- W2055178297 cites W2415555 @default.
- W2055178297 cites W388143847 @default.
- W2055178297 cites W394339504 @default.
- W2055178297 cites W4253241035 @default.