Comparative Study of Imidazole and Pyridine Catalyzed Reduction of Carbon Dioxide at Illuminated Iron Pyrite Electrodes

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• 作者：Andrew B. Bocarsly ; Quinn D. Gibson ; Amanda J. Morris ; Robert P. L鈥橢sperance ; Zachary M. Detweiler ; Prasad S. Lakkaraju ; Elizabeth L. Zeitler ; Travis W. Shaw
• 刊名：ACS Catalysis
• 出版年：2012
• 出版时间：August 3, 2012
• 年：2012
• 卷：2
• 期：8
• 页码：1684-1692
• 全文大小：425K
• 年卷期：v.2,no.8(August 3, 2012)
• ISSN：2155-5435

文摘

The chemistry of the electrocatalytic reduction of CO₂ using nitrogen containing heteroaromatics is further explored by the direct comparison of imidazole and pyridine catalyzed CO₂ reduction at illuminated iron pyrite electrodes. The mechanism of imidazole based catalysis of CO₂ reduction is investigated by analyzing the catalytic activity of a series of imidazole derivatives using cyclic voltammetry. While similar product distributions are obtained for both imidazole and pyridine, the imidazole catalyzed reduction of CO₂ likely proceeds via a very different mechanism involving the C2 carbon of the imidazole ring.

Keywords:

d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=photoelectrochemistry&qsSearchArea=searchText">photoelectrochemistry; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=aromatic+amine+electrocatalysts&qsSearchArea=searchText">aromatic amine electrocatalysts; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=carbon+dioxide+reduction&qsSearchArea=searchText">carbon dioxide reduction; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=iron+pyrite+photocathodes&qsSearchArea=searchText">iron pyrite photocathodes; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=imidazolium+based+electrocatalyst&qsSearchArea=searchText">imidazolium based electrocatalyst; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=pyridinium+based+electrocatalysis&qsSearchArea=searchText">pyridinium based electrocatalysis; d="authors" href="http://pubs.acs.org/action/doSearch?action=search&searchText=formic+acid+production&qsSearchArea=searchText">formic acid production