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题名: Benzene electro-oxidation in a PEMFC for phenol and electricity cogeneration
作者: Cai, R;  Song, SQ;  Ji, BF;  Yang, WS;  Xin, Q;  Sun, GQ;  Douvartzides, S;  Tsiakaras, P
通讯作者: 杨维慎 ;  Tsiakaras ;  P.
关键词: benzene ;  phenol ;  PEMFC ;  Pd black
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2005-11-09
DOI: 10.1016/j.apcatb.2005.04.008
卷: 61, 期:3-4, 页:184-191
收录类别: SCI
文章类型: Article
部门归属: 5,3
项目归属: 504,305
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: In the present investigation, the electrochemically-assisted oxidation of benzene in a H-2-O-2 proton exchange membrane fuel cell (PEMFC) for electricity and phenol cogeneration is studied. Experiments were carried out in a PEMFC electrochemical reactor using Pd black as cathode electrocatalyst at 60 and 80 degrees C, respectively and 1 atm back pressure. Indeed, it was found that the only product detected under the examined experimental conditions was phenol. The online GC product analysis revealed that it is impossible to produce phenol when the fuel cell circuit is open (I = 0) under all the examined experimental conditions. When the fuel cell circuit was closed, however, the phenol yield was found to follow a volcano-type dependence on the cur-rent of the external circuit. It was found that the maximum phenol yield was 0.35% at 100 mA/cm(2) at 80 degrees C. At the same time, the PEMFC performance was also investigated during the phenol generation process. Furthermore, experiments with the rotating ring disc electrode (RRDE) technique showed that the intermediate oxidation product, i.e. H2O2 existed during the oxygen electro-reduction process. The cyclic voltammograms showed that benzene was strongly adsorbed on the Pd surface, leading to a degradation of the PEMFC performance. (c) 2005 Elsevier B.V. All rights reserved.
关键词[WOS]: FUEL-CELL SYSTEM ;  OXYGEN REDUCTION ;  OXIDATION ;  ELECTRODE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000233066800002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93353
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.CAS, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Thessalia, Sch Engn, Dept Mech Engn, Volos 38334, Greece
3.CAS, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China

Recommended Citation:
Cai, R,Song, SQ,Ji, BF,et al. Benzene electro-oxidation in a PEMFC for phenol and electricity cogeneration[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2005,61(3-4):184-191.
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