Carbon network framework derived iron-nitrogen co-doped carbon nanotubes for enhanced oxygen reduction reaction through metal salt-assisted polymer blowing strategy

作者:Lu, ZW (Lu, Zhiwei)^[1 ]; Liu, BC (Liu, Baichen)^[1 ]; Dai, WL (Dai, Wanlin)^[1 ]; Ouyang, LZ (Ouyang, Liuzhang)^[2,3 ]; Ye, JS (Ye, Jianshan)^[1 ]

High cost and supply shortage greatly limit the actual application of platinum (Pt)-based catalysts in oxygen reduction reaction (ORR). This study reports a top-down strategy for fabrication of iron-nitrogen co-doped carbon nanotubes (Fe-N-CNTs-800) electrocatalyst through metal salt-assisted polymer (polyvinylpyrrolidone) in situ chemical blowing and following by pyrolysis strategy. Newly-designed Fe-N-CNTs-800 catalysts possessed large specific surface area, high nitrogen content, and excellent structural stability. Compared with commercially available platinum carbon (Pt/C) electrocatalysts, the Fe-N-CNTs-800 catalysts exhibited outstanding catalytic performance toward ORR in alkaline. The synergistic effect between iron-nitrogen doped and porous nanotubes structures results in the higher catalytic activity, remarkable resistance to methanol, and good stability for Fe-N-CNT-800 catalyst. This work has certain guiding significance for the future design of nanostructure engineering and the fabrication of highly efficient inexpensive catalysts to substitute of Pt-based electrocatalysts in ORR.

作者关键词:Chemical blowing; Oxygen reduction reaction; Carbon nanotubes; Electrocatalyst; Synergistic effect

KeyWords Plus:EFFICIENT ELECTROCATALYST; POROUS CARBON; FE; HOLLOW; PERFORMANCE; GRAPHENE; NANOPARTICLES; CATALYSTS; MICROSPHERES; CHALLENGES

通讯作者地址:Ouyang, LZ (通讯作者)

South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.   增强组织信息的名称     South China University of Technology

South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China.   增强组织信息的名称     South China University of Technology

地址:

	[ 1 ] South China Univ Technol, Sch Chem & Chem Engn, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 2 ] South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 3 ] South China Univ Technol, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology

电子邮件地址:meouyang@scut.edu.cn; jsye@scut.edu.cn

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