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题名: Electroactive Biofilm Serving as the Green Synthesizer and Stabilizer for in Situ Fabricating 3D Nanopalladium Network: An Efficient Electrocatalyst
作者: Hou, Ya-Nan; Liu, Huan; Han, Jing-Long; Cai, Wei -Wei; Zhou, Jizhong; Wang, Ai-Jie; Cheng, Hao-Yi
刊名: ACS SUSTAINABLE CHEMISTRY & ENGINEERING
出版日期: 2016-10
卷号: 4, 期号:10, 页码:5392-5397
关键词: Nanopalladium ; Electroactive biofilm ; Conductive 3D network ; In situ fabrication ; Reductive catalysis
DOI: 10.1021/acssuschemeng.61300647
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: Biogenetic nanopalladium (bio-Pd) has attracted increasing attention recently due to its economical and environmental friendly synthesis route. However, traditional bacteria suspensions formed palladium (Sus-Pd) is limited to be the electrochemical catalyst owing to the poor conductivity of bacterial cells. Herein, we demonstrated Pd nanoparticles, synthesized by electroactive Geobacter biofilm, can form a three-dimensional conductive network (EAB-Pd) that is beneficial to the electrons transfer. As a result, the EAB-Pd delivered an over 5-fold increase of current compared to the Sus-Pd in hydrogen evolution and the reductive degradation of nitro-, azo- and chloroaromatics. Superior performance of EAB-Pd was also observed in comparison with the commercial Pd catalyst. A good stability of EAB-Pd has been further confirmed under electrochemical and mechanical stresses as well as through the reuse after over 3 months of storage. This novel proposed method enables the direct electrochemical application of bio-Pd without the previous required cell carbonization and chemical binders.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36123
Appears in Collections:中国科学院环境生物技术重点实验室_期刊论文

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