Amine-terminated ionic liquid functionalized carbon nanotubes for enhanced interfacial electron transfer of Shewanella putrefaciens anode in microbial fuel cells

被引：41

作者：

Wei, Huan ^{[1
,2
]}

Wu, Xiao-Shuai ^{[1
,2
]}

Zou, Long ^{[1
,2
]}

Wen, Guo-Yun ^{[1
,2
]}

Liu, Ding-Yu ^{[1
,2
]}

Qiao, Yan ^{[1
,2
]}

机构：

[1] Southwest Univ, Fac Mat & Energy, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China

[2] Chongqing Key Lab Adv Mat & Technol Clean Energie, Chongqing 400715, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2016年 / 315卷

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; Amine-terminated ionic liquids; Shewanella putrefaciens; Bioelectrocatalysis; Microbial fuel cell; POWER-GENERATION; NANOPARTICLES; ELECTROCATALYSIS; HEMOGLOBIN; SYSTEMS;

D O I：

10.1016/j.jpowsour.2016.03.033

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：

An amine-terminated ionic liquid (IL-NH2) is applied to functionalize carbon nanotubes (CNTs) for improving the interfacial electron transfer of Shewanella putrefaciens (S. putrefaciens) anode in Microbial fuel cells (MFCs). The introduction of thin layer of ILs does not change the morphology of CNTs a lot but increases surface positive charges as well as nitrogen functional groups of the CNTs based anode. The CNT-IL composite not only improves the adhesion of S. putrefaciens cells but also promotes both of the flavin-mediated and the direct electron transfer between the S. putrefaciens cells and the anode. It is interesting that the CNT-IL is more favorable for the mediated electron transfer than for the direct electron transfer. The CNT-IL/carbon cloth anode delivers 3-fold higher power density than that of CNT anode and shows great long-term stability in the batch-mode S. putrefaciens MFCs. This CNT-IL could be a promising anode material for high performance MFCs. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：192 / 198

页数：7