Fabrication of free-standing activated three-dimensional hierarchical porous carbon anode for MFCs

doi:10.16085/j.issn.1000-6613.2020-0159

Chemical Industry and Engineering Progress ›› 2020, Vol. 39 ›› Issue (9): 3494-3501.DOI: 10.16085/j.issn.1000-6613.2020-0159

• Materials science and technology • Previous Articles Next Articles

Fabrication of free-standing activated three-dimensional hierarchical porous carbon anode for MFCs

Meiqiong CHEN¹(), Wenxian GUO¹, Hongfei XIAO¹, Yan ZHANG¹, Zhiquan CAI¹, Min ZHANG², Faliang CHENG²()

^1.Dongguan Key Laboratory of Green Energy, School of Urban Construction and Environment, City College of Dongguan University of Technology, Dongguan 523419, Guangdong, China
^2.Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China

Online:2020-09-11 Published:2020-09-05
Contact: Faliang CHENG

自支撑活化三维分级多孔碳阳极的制备及其在MFCs的应用

陈妹琼¹(), 郭文显¹, 肖红飞¹, 张燕¹, 蔡志泉¹, 张敏², 程发良²()

^1.东莞理工学院城市学院城建与环境学院，东莞市绿色能源重点实验室，广东东莞 523419
^2.东莞理工学院生态环境与建筑工程学院，广东省新型纳米材料工程技术研究中心，广东东莞 523808

通讯作者: 程发良
作者简介:陈妹琼（1982—），女，博士，副教授，研究方向为电化学。E-mail：chenmq@ccdgut.edu.cn。
基金资助:
国家自然科学基金(21775022);广东省自然科学基金(2017A030310603);广东省基础与应用基础研究基金联合基金(2019A1515110314);广东省普通高校创新团队(2015KCXTD029);广东省青年创新人才类项目(自然科学类)(2016KQNCX221);广东省普通高校特色创新项目（自然科学）(2015KTSCX179);东莞理工学院城市学院重大科研培育项目(2017YZD003Z);广东大学生科技创新培育专项(pdjh2020b0789);东莞理工学院城市学院青年基金(2017QJY005Z)

Abstract

Abstract:

Microbial fuel cells （MFCs）are emerging as an energy conversion device to directly harvest electricity energy from waste water．However，many issues are waiting to be tackled for its practical applications． The most important challenges include the relatively low power density． The anode material is crucial for the improvement of power density and the energy conversion efficiency of MFCs． In this study， a serial of advanced free-standing activated three-dimensional （3D） hierarchical porous carbon （HPC） anodes were obtained by chemical activation combined with annealing treatment from biomass．Due to the excellent electrical conductivity，good electrochemical activity，outstanding mass transfer and diffusion efficiency， and large biological loading， the HPC-6 anode，which was obtained with 6mol/L KOH activation displayed the best electrochemical activity，and highest power density of 121.45W/m³，which was 1．8-fold higher than that of pristine．This study provides new ideas and methods for the construction of advanced functional 3D MFCs carbon-based electrode materials．

Key words: microbial fuel cells, three-dimensional, macroporous carbon, anode

摘要：

微生物燃料电池是一种可以从污水中直接回收能量的新型装置。然而，还有很多问题限制了它的广泛应用，其最大的困难在于输出功率密度低。阳极材料对于提高其功率密度和能量转换效率非常重要。本文基于生物质原料，利用化学试剂活化结合热处理，制备得到了一系列具有分级孔结构的自支撑活化三维碳基阳极。这种自支撑三维阳极具有优异的导电性、良好的电化学活性、出色的传质扩散以及优良的微生物相容性。其中，6mol/L KOH溶液处理得到的三维阳极具有最优的电化学活性和最佳功率输出，其最大功率密度高达121.45W/m³，是处理前的1.8倍。此研究为构筑高效功能三维碳基MFCs电极材料提供新思路和新方法。

关键词: 微生物燃料电池, 三维, 多孔碳, 阳极

CLC Number:

O646

Meiqiong CHEN, Wenxian GUO, Hongfei XIAO, Yan ZHANG, Zhiquan CAI, Min ZHANG, Faliang CHENG. Fabrication of free-standing activated three-dimensional hierarchical porous carbon anode for MFCs[J]. Chemical Industry and Engineering Progress, 2020, 39(9): 3494-3501.

陈妹琼, 郭文显, 肖红飞, 张燕, 蔡志泉, 张敏, 程发良. 自支撑活化三维分级多孔碳阳极的制备及其在MFCs的应用[J]. 化工进展, 2020, 39(9): 3494-3501.

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Fabrication of free-standing activated three-dimensional hierarchical porous carbon anode for MFCs

自支撑活化三维分级多孔碳阳极的制备及其在MFCs的应用

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