共 34 条
Grooves of Bundled Single-Walled Carbon Nanotubes Dramatically Enhance the Activity of the Oxygen Reduction Reaction
被引:9
作者:

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Morita, Junichi
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Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, Fukuoka 819039, Japan Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, Fukuoka 819039, Japan

Nakashima, Naotoshi
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Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, Fukuoka 819039, Japan
Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan
Japan Sci & Technol Agcy JST, CREST, Chiyoda Ku, Tokyo 1020075, Japan Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, Fukuoka 819039, Japan
机构:
[1] Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Nishi Ku, Fukuoka 819039, Japan
[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan
[3] Japan Sci & Technol Agcy JST, CREST, Chiyoda Ku, Tokyo 1020075, Japan
来源:
基金:
日本科学技术振兴机构;
关键词:
bundles;
N ligands;
nanotubes;
oxygen;
reduction;
FUEL-CELL ELECTROCATALYST;
SURFACE-AREA;
POLYBENZIMIDAZOLE;
ADSORPTION;
CATALYSTS;
NANOPARTICLES;
SIMULATION;
DESIGN;
IRON;
NH3;
D O I:
10.1002/cctc.201402565
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:
Nitrogen-doped graphitic structures (N-GSs) are promising and cheap catalyst candidates for the oxygen reduction reaction (ORR). In this paper, we describe, first, the synthesis of single-walled carbon nanotubes (SWNTs) coated by a N-GS (SWNT/N-GS) and, second, the dramatic enhancement in the activity of the ORR by using this catalyst relative to that observed for the analogue composite composed of multiwalled carbon nanotubes (MWNTs) coated by a N-GS (i.e., MWNT/N-GS). Scanning electron microscopy and gas-adsorption experiments revealed that the SWNT/N-GS formed a bundled structure and that superior gas adsorption behavior originated from this groove structure. It is assumed that the grooves of the bundled SWNT/N-GS dramatically enhance the activity of the ORR owing to superior O-2 adsorption on the grooves.
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收藏
页码:3169 / 3173
页数:5
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