• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Electrochemical processing in ULSI and MEMS 4 >Automated Electrodeposition of Bimetallic Noble-Metal Nanoclusters via RedoxReplacement Reactions for Electrocatalysis
【24h】

Automated Electrodeposition of Bimetallic Noble-Metal Nanoclusters via RedoxReplacement Reactions for Electrocatalysis

机译：双金属贵金属纳米团簇通过氧化还原反应自动电沉积进行电催化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nanostructured materials composed of noble-metals have found a great deal of attention for their use as electrocatalysts for instance in energy devices such as fuel cells (1). Development of catalyst fabrication methods is generally carried out in order to reduce the cost of fuel cells; the catalytic activity and utilization efficiency of Pt must be increased and therefore the catalyst layer structure must be modified accordingly and reasonably cheaply. This might be achieved by the catalyst deposition method. In particular, bimetallic catalyst formulations have been a particularly vigorous area of research in direct methanol fuel cells (DMFCs); they have potential applications in portable electronic devices and automobile fuel cells (1-4). Pt-based bimetallic catalysts are used to improve the poisoning tolerance of the hydrogen oxidation, or to enhance alcohol oxidation activity in fuel cell anodes (5-7) due to their superior activity compared to pure Pt (1, 8). The main synthetic challenge for bimetallic electrocatalysts is to have good dispersion and control of the particle sizes as well as maximizing proximity of the primary metallic particles to active areas of electrode surfaces to increase their effective utilization (1).
机译：由贵金属组成的纳米结构材料已被广泛用作电催化剂，例如在燃料电池等能源设备中（1）。为了降低燃料电池的成本，通常进行催化剂制造方法的开发。 Pt的催化活性和利用效率必须提高，因此催化剂层的结构必须相应地和合理地廉价地进行改性。这可以通过催化剂沉积方法来实现。特别地，在直接甲醇燃料电池（DMFC）中，双金属催化剂配方一直是特别活跃的研究领域。它们在便携式电子设备和汽车燃料电池（1-4）中具有潜在的应用。基于Pt的双金属催化剂由于其比纯Pt（1、8）优越的活性，因此可用于提高氢氧化的中毒耐受性或增强燃料电池阳极（5-7）中的醇氧化活性。双金属电催化剂的主要合成挑战是要具有良好的分散性和粒径控制，并最大程度地使初级金属颗粒与电极表面的活性区域接近，以提高其有效利用率（1）。

著录项

  • 来源
  • 会议地点 San Francisco CA(US);San Francisco CA(US)
  • 作者

    T. S. Mkwizu; M. K. Mathe; I. Cukrowski;

  • 作者单位

    Department of Chemistry, University of Pretoria, NW-1 Building, Pretoria, 0002, South Africa Energy and Processes Competence Area, Materials Science and Manufacturing Unit,Council for Scientific and Industrial Research (CSIR), PO Box 395, Pretoria, 0001, South Africa;

    Energy and Processes Competence Area, Materials Science and Manufacturing Unit,Council for Scientific and Industrial Research (CSIR), PO Box 395, Pretoria, 0001, South Africa;

    Department of Chemistry, University of Pretoria, NW-1 Building, Pretoria, 0002, South Africa;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学电源、电池、燃料电池;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号