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首页> 外文期刊>Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry >Electrocatalysis of carbon dioxide with hemin and hemin-coated latex
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Electrocatalysis of carbon dioxide with hemin and hemin-coated latex

机译：血红素和血红素包覆的乳胶对二氧化碳的电催化

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Carbon dioxide was reduced catalytically with hemin in 2-propanol to reveal a cathodic wave at -1.1 V. The catalytic activity was demonstrated with the UV spectra in which Fe2+ (hemin) was oxidized with CO2. Hemin was immobilized on polyallylamine-polystyrene latex as a quasi solid catalyst. The hemin-coated latex in a suspension of 2-propanol showed the catalytic activity for CO, similar to the hemin molecule. The rate constant of the catalytic reaction of dissolved hemin was evaluated on the assumption of the pseudo-first order reaction to give 11.5 M-1 s(-1), whereas the hemin-coated latex suspension did not obey the simple combination of the pseudo-first order reaction and diffusion because of the reaction with CO, accumulated in the particles. (c) 2005 Elsevier B.V. All rights reserved.
机译：在2-丙醇中用血红素催化还原二氧化碳，在-1.1 V处显示阴极波。通过UV光谱证明了催化活性，其中Fe2 +（血红素）被CO2氧化。将血红素固定在聚烯丙胺-聚苯乙烯胶乳上作为准固体催化剂。 2-丙醇悬浮液中的包有血红素的胶乳显示出对CO的催化活性，类似于血红素分子。在拟一级反应假设为11.5 M-1 s（-1）的条件下，评估了溶解的血红素催化反应的速率常数，而未包被血红素的乳胶悬浮液并未遵循拟假一级反应的简单组合。 -由于与CO的反应而在颗粒中积累的一级反应和扩散。 （c）2005 Elsevier B.V.保留所有权利。

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