Promoted activity of nitrogen-doped activated carbon as a highly efficient oxygen reduction catalyst in microbial fuel cells

doi:10.1007/s10800-018-1263-6

	Promoted activity of nitrogen-doped activated carbon as a highly efficient oxygen reduction catalyst in microbial fuel cells
	Liu, Yuan1,2 ; Liu, Zhi-Mei1,2
刊名	JOURNAL OF APPLIED ELECTROCHEMISTRY
	2019-02-01
卷号	49 期号:2 页码:119-133
关键词	Activated carbon Phthalocyanine Nitrogen-doping Microbial fuel cell Oxygen reduction reaction
ISSN号	0021-891X
DOI	10.1007/s10800-018-1263-6
通讯作者	Liu, Yuan(liuyuan@cigit.ac.cn)
英文摘要	Despite the wide application of activated carbon (AC) as cathode electrocatalyst in microbial fuel cell (MFC), the enhancement of its catalytic activity is crucial to reduce its high loading on air-cathode. Herein, we synthesize nitrogen-doped activated carbon (NAC) by pyrolyzing phthalocyanine (Pc) adsorbed on AC to develop an efficient oxygen reduction reaction (ORR) electrocatalyst. The optimized mass ratio of AC to Pc improves the crystalline structure and porous structure of the NAC. Elemental analysis indicates that this material contains appropriate content of pyrrolic and pyridinic types of nitrogen and oxygen species. The NAC shows an ORR onset potential of 0.468V (vs. Standard hydrogen electrode), an electron transfer number of 3.90, and high electrochemically accessible surface area, thereby illustrating enhanced electrocatalytic activity in the neutral medium relative to alkali-treated activated carbon (b-AC) and commercial platinum catalyst. Owing to the high activity, a small amount of NAC with a loading of 15mgcm(-2) on the air-cathode of MFC is sufficient to achieve the maximum power density of 1026.0710.83mWm(-2), which is higher than that of b-AC and comparable to platinum catalyst. The reduced loading of NAC indicates that the material can be used as cathode electrocatalyst for the ongoing effort to scale up MFC in the future. [GRAPHICS] .
资助项目	Natural Science Foundation of China[51578526] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2015jcyjBX0063] ; Natural Science Foundation of Chongqing[cstc2018jcyjAX0327] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2016341]
WOS研究方向	Electrochemistry
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000457586500002
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/7370]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Liu, Yuan
作者单位	1.Chinese Acad Sci, Key Lab Reservoir Aquat Environm, Chongqing, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yuan,Liu, Zhi-Mei. Promoted activity of nitrogen-doped activated carbon as a highly efficient oxygen reduction catalyst in microbial fuel cells[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY,2019,49(2):119-133.
APA	Liu, Yuan,&Liu, Zhi-Mei.(2019).Promoted activity of nitrogen-doped activated carbon as a highly efficient oxygen reduction catalyst in microbial fuel cells.JOURNAL OF APPLIED ELECTROCHEMISTRY,49(2),119-133.
MLA	Liu, Yuan,et al."Promoted activity of nitrogen-doped activated carbon as a highly efficient oxygen reduction catalyst in microbial fuel cells".JOURNAL OF APPLIED ELECTROCHEMISTRY 49.2(2019):119-133.