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Gallium Arsenide nanowires for electrode application in solid oxide fuel cell grown using metal organic chemical vapor deposition

机译:砷化镓纳米线用于使用金属有机化学气相沉积法生长的固体氧化物燃料电池中的电极

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摘要

Solid oxide fuel cell (SOFC) is a promising efficient device for the direct conversion of the chemical energy into electricity. The development of this highly robust SOFC which operates on a variety of fuels however, requires improvements on the electrodes, where nanoscale engineering is required in order to maximize the number of sites where the electrochemical reactions take place. In this article, we briefly explained the growth of GaAs nanowires on a GaAs substrate as an electrode using metal organic chemical organic vapor deposition (MOCVD). Field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and Conductive atomic force microscopy (CAFM) analysis were carried out as to investigate the structural properties and current voltage changes in the wires. Results show that nanowires grown are less defect, uniform in composition and with optimum desired diameters. The current voltage measurement showed it is similar to that of a p n junction characteristic which is suitable for the SOFC operation. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译:固体氧化物燃料电池(SOFC)是一种有前途的高效设备,可将化学能直接转化为电能。然而,这种在多种燃料上运行的高度耐用的SOFC的开发需要对电极进行改进,在电极上需要进行纳米级工程设计,以使发生电化学反应的位点数量最大化。在本文中,我们简要介绍了使用金属有机化学有机气相沉积(MOCVD)在GaAs衬底上作为电极的GaAs纳米线的生长。进行了场发射扫描电子显微镜(FE-SEM),透射电子显微镜(TEM)和导电原子力显微镜(CAFM)分析,以研究导线的结构特性和电流电压变化。结果表明,生长的纳米线缺陷少,组成均匀且具有最佳所需直径。当前的电压测量结果表明,该电压类似于适用于SOFC操作的pn结特性的电压。 (C)2016氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

著录项

  • 来源
    《International journal of hydrogen energy》 |2017年第14期|9243-9251|共9页
  • 作者单位

    Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia;

    Univ Teknol Malaysia, Razak Sch, Kuala Lumpur 54100, Malaysia;

    Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia;

    Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia;

    Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia;

    Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Solid oxide fuel cell; MOCVD; Gallium Arsenide; Nanowire; Vapor-liquid-solid;

    机译:固体氧化物燃料电池;MOCVD;砷化镓;纳米线;汽-液-固;

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