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题名: "Spontaneous bubble-template" assisted metal-polymeric framework derived N/Co dual-doped hierarchically porous carbon/Fe3O4 nanohybrids: superior electrocatalyst for ORR in biofuel cells
作者: Cao, Chun1, 2; Wei, Liling1; Su, Min1, 2; Wang, Gang1, 2; Shen, Jianquan1
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2016
卷: 4, 期:23, 页:9303-9310
收录类别: SCI
英文摘要: A "Spontaneous bubble-template" method is fascinating in that bubbles are formed in situ during material processing and employed as a template for fabricating unique structures, which has not been reported in material science. It is sustainable, green and efficient in that no extra additives or post-treatment are used. Herein, novel metal-polymeric framework derived hierarchically porous carbon/Fe3O4 nanohybrids are prepared using a "spontaneous bubble-template" method by one-step carbonization. During the carbonization process, N and Co are self-doped on porous carbon in which in situ grown nano Fe3O4 is embedded (Fe3O4@N/Co-C). The as-prepared Fe3O4@N/Co-C displays a three-dimensional interpenetrating morphology (electrochemical active area: 729.89 m(2) g(-1)) with well-distributed Fe3O4 nanoparticles (20-50 nm) which are coated with a carbon layer (3-5 nm). Fe3O4@N/Co-C exhibits remarkable oxygen reduction activity in biofuel cells with a distinct output voltage (576 mV) and power density (918 mW m(-2)), which are 3.6% and 17.8% higher than those of Pt (0.5 mg cm(-2)), respectively. Besides biofuel cells, Fe3O4@N/Co-C may also have the potential for application in chemical fuel cells, since it demonstrates better oxygen reduction activity in electrochemical measurements. Thus, with the virtues of its low-cost, facile synthesis and large-scale preparation, Fe3O4@N/Co-C is a promising electrocatalyst for the oxygen reduction reaction and application in biofuel cells.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35553
Appears in Collections:绿色印刷实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, BNLMS, Zhongguancun North First St 2, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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