Enhancing bioelectrochemical performance of two-dimensional material attached by covalent/metal organic frameworks as cathode catalyst for microbial fuel cells

被引：20

作者：

Chen, Junfeng ^{[1
]}

Yang, Jiaqi ^{[1
]}

Zhao, Kunqi ^{[1
]}

Wu, Yiqun ^{[1
]}

Wang, Xuemei ^{[1
]}

Zhang, Yiwen ^{[1
]}

Zhao, Yongyue ^{[1
]}

Wang, Renjun ^{[1
]}

Yang, Yuewei ^{[1
]}

Liu, Yanyan ^{[1
]}

机构：

[1] Qufu Normal Univ, Sch Life Sci, Qufu 273165, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2022年 / 360卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Ti; 3; AlC; 2; Oxygen reduction reaction; ZIF-8; COF-300; Microbial fuel cells (MFCs); OXYGEN REDUCTION REACTION; ENERGY; LDH;

D O I：

10.1016/j.biortech.2022.127537

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, covalent/metal organic framework and two-dimensional material (COF-300/ZIF-8@Ti3AlC2) were composited by a three-step distributed feed method for cathode catalyst in microbial fuel cells (MFCs). The growth of irregular cube-like COF-300/ZIF-8 on the Ti3AlC2 substrate was observed. Al, Zn, Ti, N, C and O elements were observed uniformly and more active sites were offered through it. The external output voltage of COF-300/ZIF-8@Ti3AlC2-MFC was 576 mV and this could be almost unchanged for 9 days. The external output power density was 587.01 mW/m2, and that was 1.25 times of COF-300@Ti3AlC2-MFC (469.30 mW/m2) and 1.67 times of COF-300/ZIF-8-MFC (352.09 mW/m2). Ti3AlC2 enhanced the electrical conductivity of the composite by its rich surface functional groups and much more surface active sites. COF-300/ZIF-8 mixture improved the instability and disorder of the monomer. This study would supply technical support for the expanded request of composite materials in microbial electrochemistry.

引用

页数：8

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