摘要
以MCM-22分子筛为模板、蔗糖为碳前驱体、镍离子为催化剂,将无定型碳转化成多孔碳材料(PC),采用SEM测试、BET测试对其表面形貌及比表面积进行表征,采用EIS测试和CV测试对其修饰电极进行电化学性能表征,并将其修饰电极装配于微生物燃料电池(MFC)中运行,对MFC进行性能分析和COD去除率分析。SEM测试显示PC结构呈碎片化片状结构,BET测试其比表面积为578.66 m2·g-1。EIS测试显示,PC修饰碳布(PC-CC)的活化阻抗较小,仅为2.6Ω,CV测试中PC-CC也出现了较弱的氧化还原峰。与以未修饰的空白碳布为阳极的MFC相比,以PC-CC为阳极的MFC的COD去除率和最大功率密度均有提高。表明PC作为阳极修饰材料能够有效提升MFC性能,其简易的制作流程为大规模制备MFC阳极提供了可能。
Using MCM-22 zeolite as a template,sucrose as a carbon precursor,and nickel ions as a catalyst,we converted amorphous carbon into porous carbon(PC).Furthermore,we characterized the surface morphologies and specific surface areas of the PC by SEM and BET,respectively,and characterized the electrochemical performance of the PC-modified electrode by EIS and CV.Moreover,we investigated the performance and COD removal rate of MFC by assembling the PC-modified electrode into MFC.The SEM test shows that the PC has a fragmented sheet structure and the BET test shows that its specific surface area is 578.66 m2·g-1.The EIS test shows that the activation impedance of PC-modified carbon cloth(PC-CC)is small,only 2.6Ω,and weak redox peaks are also observed in the CV test.Compared with the MFC assembled with blank carbon cloth anode,the MFC assembled with PC-CC anode has higher COD removal rate and the maximum power density.The results show that PC as an anode modification material can effectively improve the performance of MFC,and its simple preparation process also provides the possibility for large-scale preparation of MFC anodes.
作者
邢晓晔
刘中良
陈稳稳
娄晓歌
李艳霞
廖强
XING Xiaoye;LIU Zhongliang;CHEN Wenwen;LOU Xiaoge;LI Yanxia;LIAO Qiang(Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,College ofEnvironmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China;Institute of Engineering Thermophysics,School of Energy and Power Engineering,Chongqing University,Chongqing 400030,China)
出处
《化学与生物工程》
CAS
2020年第3期19-24,共6页
Chemistry & Bioengineering
基金
国家自然科学基金项目(512676004)。
