Polyethylenimine-Enhanced Electrocatalytic Reduction of CO2 to Formate at Nitrogen-Doped Carbon Nanomaterials

被引：568

作者：

Zhang, Sheng ^{[1
]}

Kang, Peng ^{[1
]}

Ubnoske, Stephen ^{[2
]}

Brennaman, M. Kyle ^{[1
]}

Song, Na ^{[1
]}

House, Ralph L. ^{[1
]}

Glass, Jeffrey T. ^{[2
]}

Meyer, Thomas J. ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 22期

基金：

美国国家科学基金会;

关键词：

METAL-FREE ELECTROCATALYSTS; ELECTROCHEMICAL REDUCTION; OXYGEN REDUCTION; SELECTIVE CONVERSION; DIOXIDE REDUCTION; CATALYSTS; METHANOL; ELECTRODE; EFFICIENCY; NANOTUBES;

D O I：

10.1021/ja5031529

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nitrogen-doped carbon nanotubes are selective and robust electrocatalysts for CO2 reduction to formate in aqueous media without the use of a metal catalyst. Polyethylenimine (PEI) functions as a co-catalyst by significantly reducing catalytic overpotential and increasing current density and efficiency. The co-catalysis appears to help in stabilizing the singly reduced intermediate CO2 center dot- and concentrating CO2 in the PEI overlayer.

引用

页码：7845 / 7848

页数：4

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