Modified carbon fiber electrodes for carbon dioxide reduction

被引:2
作者
Hamamoto, O
Akahori, Y
Goto, S
Kato, Y
Ishii, M
机构
[1] Mitsui Engn & Ship Bldg Co Ltd, Steel Struct, Chuo Ku, Tokyo 1048439, Japan
[2] Meiji Univ, Sch Sci & Technol, Dept Ind Chem, Tama Ku, Kawasaki, Kanagawa 2148571, Japan
[3] Japan Anal & Evaluat Ctr, Hachioji, Tokyo 1920011, Japan
关键词
carbon dioxide; electroreduction; formic acid; carbon fiber electrodes;
D O I
10.5796/electrochemistry.72.322
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Carbon dioxide was reduced by the surface modified carbon fiber electrodes impregnated with indium to form formic acid which is expected to be available for the chemiluminescent application. The PAN (polyacrylonitrile) based carbon fiber (800degreesC pre-heated) was baked with aluminum chloride and water in nitrogen atmosphere oven to introduce oxygen atoms and to increase the degree of crystallization, which results in the improvement in hydrogen overvoltage and some electrochemical reactivities. Indium was electrodeposited to the surface modified carbon fibers for the working electrode. The current efficiency of carbon dioxide conversion to formic acid was close to 100%, and trace of by-products such as folmaldehyde and carbon monooxide were detected under the optimum electrochemical conditions. The cell technologies of flow coulometric detectors and redox flow batteries were applied to the design of the electrolytic cells for carbon dioxide reduction.
引用
收藏
页码:322 / 327
页数:6
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