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首页> 外文期刊>Chemie-Ingenieur-Technik: Verfahrenstechnik Technische Chemie Apparatewesen Biotechnologie >Characterization of the Oxidation States of Supported Gold Species by IR Spectroscopy of Adsorbed CO
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Characterization of the Oxidation States of Supported Gold Species by IR Spectroscopy of Adsorbed CO

机译:吸附CO的红外光谱表征负载型金的氧化态

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摘要

The use of IR spectroscopy of adsorbed CO for determination of gold speciation on supported gold catalysts is reviewed.Different ionic and metallic sites(Au~(3+),Au+,Au~0,and Au~-)can be differentiated on the basis of the frequency and stability of their surface carbo-nyl species formed after CO adsorption.In addition,the study of CO adsorption and reaction with other gases can provide unique information on the mechanisms of catalytic reactions with participation of CO.Finally,results from complementary techniques such as X-ray absorption spectroscopy,also useful for determination of gold oxidation state,are briefly considered.
机译:综述了红外吸收光谱法测定负载型金催化剂上金的形态的方法。在此基础上可以区分不同的离子和金属位点(Au〜(3 +),Au +,Au〜0和Au〜-)。此外,对CO吸附和与其他气体反应的研究可以提供有关CO参与的催化反应机理的独特信息。最后,补充说明简要考虑了X射线吸收光谱等技术,这些技术也可用于确定金的氧化态。

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