Electrocatalytic Reduction of Carbon Dioxide to Carbon Monoxide by a Polymerized Film of an Alkynyl-Substituted Rhenium(I) Complex

被引：49

作者：

Portenkirchner, Engelbert ^{[1
]}

Gasiorowski, Jacek ^{[1
]}

Oppelt, Kerstin ^{[2
]}

Schlager, Stefanie ^{[1
]}

Schwarzinger, Clemens ^{[3
]}

Neugebauer, Helmut ^{[1
]}

Knoer, Guenther ^{[2
]}

Sariciftci, Niyazi Serdar ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Phys Chem, Linz Inst Organ Solar Cells LIOS, Linz, Austria

[2] Johannes Kepler Univ Linz, CNPS, Inst Inorgan Chem, Linz, Austria

[3] Johannes Kepler Univ Linz, Inst Chem Technol Organ Mat, Linz, Austria

来源：

CHEMCATCHEM | 2013年 / 5卷 / 07期

关键词：

electrochemistry; heterogeneous catalysis; polymerization; reduction; rhenium; PHOTOCATALYTIC REDUCTION; CONJUGATED POLYMERS; CO2; ELECTRODES; CONVERSION; FAC-RE(2,2-BIPYRIDINE)(CO)3CL; ENERGY; FUELS;

D O I：

10.1002/cctc.201200904

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The alkynyl-substituted ReI complex [Re(5,5-bisphenylethynyl-2,2-bipyridyl)(CO)3Cl] was immobilized by electropolymerization onto a Pt-plate electrode. The polymerized film exhibited electrocatalytic activity for the reduction of CO2 to CO. Cyclic voltammetry studies and bulk controlled-potential electrolysis experiments were performed by using a CO2-saturated acetonitrile solution. The CO2 reduction, determined by cyclic voltammetry, occurs at approximately -1150mV versus the normal hydrogen electrode (NHE). Quantitative analysis by GC and IR spectroscopy was used to determine a Faradaic efficiency of approximately 33% for the formation of CO. Both values of the modified electrode were compared to the performance of the homogenous monomer [Re(5,5-bisphenylethynyl-2,2-bipyridyl)(CO)3Cl] in acetonitrile. The polymer formation and its properties were studied by using SEM, AFM, and attenuated total reflectance (ATR) FTIR and UV/Vis spectroscopy.

引用

页码：1790 / 1796

页数：7

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