Natural Hematite as a Low-Cost and Earth-Abundant Cathode Material for   Performance Improvement of Microbial Fuel Cells

doi:10.3390/catal6100157

CORC > 北京大学 > 地球与空间科学学院

	Natural Hematite as a Low-Cost and Earth-Abundant Cathode Material for Performance Improvement of Microbial Fuel Cells
	Ren, Guiping ; Ding, Hongrui ; Li, Yan ; Lu, Anhuai
刊名	CATALYSTS
	2016
关键词	microbial fuel cells (MFCs) natural hematite low-cost cathode material earth-abundant OXYGEN REDUCTION REACTION POWER-GENERATION ELECTRICITY-GENERATION IRON PHTHALOCYANINE ELECTRON-TRANSFER ACTIVATED CARBON CATALYSTS MICROORGANISMS SHEWANELLA COTMPP
DOI	10.3390/catal6100157
英文摘要	Developing cheap electrocatalysts for cathodic oxygen reduction in neutral medium is a key factor for practical applications of microbial fuel cells (MFCs). Natural hematite was investigated as a low-cost cathode to improve the performance of microbial fuel cells (MFCs). With hematite-coated cathode, the cell current density stabilized at 330.66 +/- 3.1 mA . m(-2) (with a 1000 Omega load) over 10 days under near-neutral conditions. The maximum power density of MFC with hematite cathode reached to 144.4 +/- 7.5 mW . m(-2), which was 2.2 times that of with graphite cathode (64.8 +/- 5.2 mW . m(-2)). X-ray diffraction (XRD), Raman, electrode potential analysis, and cyclic voltammetry (CV) revealed that hematite maintained the electrode activities due to the stable existence of Fe(II)/Fe(III) in mineral structure. Electrochemical impedance spectroscopy (EIS) results indicated that the cathodic electron transfer dynamics was significantly improved by using hematite to lower the cathodic overpotential. Therefore, this low-cost and earth-abundant natural mineral is promised as an effective cathode material with potential large-field applications of MFCs in future.; National Basic Research Program of China [2014CB846001]; Natural Science Foundation of China [41230103, 41272003, 41402032]; China Postdoctoral Science Foundation [2014M550552]; SCI(E); ARTICLE; renguiping@pku.edu.cn; dhr_100@163.com; liyan-pku@pku.edu.cn; ahlu@pku.edu.cn; 10; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458796]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Ren, Guiping,Ding, Hongrui,Li, Yan,et al. Natural Hematite as a Low-Cost and Earth-Abundant Cathode Material for Performance Improvement of Microbial Fuel Cells[J]. CATALYSTS,2016.
APA	Ren, Guiping,Ding, Hongrui,Li, Yan,&Lu, Anhuai.(2016).Natural Hematite as a Low-Cost and Earth-Abundant Cathode Material for Performance Improvement of Microbial Fuel Cells.CATALYSTS.
MLA	Ren, Guiping,et al."Natural Hematite as a Low-Cost and Earth-Abundant Cathode Material for Performance Improvement of Microbial Fuel Cells".CATALYSTS (2016).