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中南大学学报(自然科学版)

Journal of Central South University

第29卷    第2期    总第120期    1998年4月

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文章编号:(1998)02-87-4
碳毡电极及膨化石墨电极上氧的催化还原研究
杨松青 胡耐根 杨立铭

(中南工业大学冶金物理化学与化学新材料研究所)

摘 要: 用不同的氧化剂对碳毡进行处理,发现经KMnO4处理的碳毡电极对氧还原的催化活性最好,并用电化学方法得到了碳毡的真实面积为其表观面积的266倍.用混合液相法成功地合成了SbCl5-石墨层间化合物,发现Sb-Cl5-石墨层间化合物可以膨化,且膨化倍数明显地高于H2SO4-石墨层间化合物.膨化石墨对氧还原的催化作用和石墨是一致的.

 

关键字: 碳;膨化石墨;氧还原

OXYGEN REDUCTION AT THE ELECTRODES OF CARBON FELT AND EXFOLIATED GRAPHITE
Yang Songqing Hu Naigen Yang Liming

Institute of Metallurgy Physicochemistry and Materials, Central South University of Technology,Changsha,410083,China

Abstract:Some novel carbon materials such as carbon felt,exfoliated graphite,graphite intercalation compounds(GICs)-metaletc. have been systematically studied in our laboratory.In this paper the carbon felt and the exfoliated graphite are reported first.Carbon felts have been treated with different oxidants.It is shown that the carbon felt treated with KMnO4 has the best catalytic activities.Electrochemical measurements indicate that the true area is 266 times of the apparent area.GICs-SbCl5 has been successfully synthetized with liquid mixed method.The GICs-SbCl5 can be exfoliated and the exfoliated volumes are much larger than that of GICs-H2SO4.The catalytic activities of the exfoliated graphite are the same as graphite. Another report about GICs-Ni and GICs-Co will be published soon.

 

Key words: carbon; exfoliated graphite; oxygen reduction

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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