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题名: A facile synthesis of Pd/C cathode electrocatalyst for proton exchange membrane fuel cells
作者: Tang, Yongfu1, 2;  Zhang, Huamin1;  Zhong, Hexiang1;  Ma, Yuanwei1, 2
关键词: Proton exchange membrane fuel cells ;  Palladium catalyst ;  Oxygen reduction reaction ;  Electrocatalyst ;  Twinned structures
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011
DOI: 10.1016/j.ijhydene.2010.09.037
卷: 36, 期:1, 页:725-731
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: A carbon supported palladium (Pd/C-NaBH4-NH3) catalyst was synthesized via modified sodium borohydride reduction method using ammonia as the complexing reagent. The Pd/C catalysts were characterized by means of powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM). Rotating disk electrode (RIDE), cyclic voltammetry (CV), electrochemical impedance spectra (EIS) and single cell measurements were employed to evaluate the activities of the catalysts. The as-prepared catalysts with face-centered cubic (fcc) structure are uniformly dispersed on the carbon supports. Twinned and polycrystalline structures are observed in the HRTEM image of Pd/C-NaBH4-NH3. The results indicate that the Pd/C-NaBH4-NH3 catalyst shows high activity for the oxygen reduction reaction. Single cell with Pd/C-NaBH4-NH3 as the cathode displays a maximum power density of 508 mW cm(-2). The favorable performance of the Pd/C-NaBH4-NH3 catalyst may be attributed to the uniformly dispersed nanoparticles and more crystalline lattice defects. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  PALLADIUM NANOPARTICLES ;  POLYOL SYNTHESIS ;  DISK ELECTRODE ;  FORMIC-ACID ;  CATALYST ;  OXIDATION
语种: 英语
WOS记录号: WOS:000288102700079
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142285
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.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,et al. A facile synthesis of Pd/C cathode electrocatalyst for proton exchange membrane fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(1):725-731.
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