• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Synthesis and Characterization of Nanostructured Platinum Coated Titanium as Electrode Material
【24h】

Synthesis and Characterization of Nanostructured Platinum Coated Titanium as Electrode Material

机译：纳米结构铂涂层钛电极材料的合成与表征

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

The present paper discusses the synthesis and characterization of nanostructured platinum coated titanium as electrode material. The electrodeposition of Pt particles on the Ti substrate was carried out from chloroplatinic acid at room temperature. Based on the cyclic voltammetric studies and UV-visible spectroscopy, direct reduction of Pt(IV) to Pt (0) was confirmed. The morphology of Pt particles was observed in scanning electron microscopy which revealed that the Pt particles with desired size were deposited on Ti from 5 mM electrolyte concentration at 60 s duration. The electrodeposited Pt particle on the Ti substrate subjected to hydrothermal reduction achieved complete coverage. Further microscopic observations and the energy dispersive spectroscopy results showed that the electrodeposited Pt particles acted as nuclei and enhanced further growth and coverage of particles during hydrothermal reduction. Also, morphology and surface coverage of Pt particle after hydrothermal reduction were found to be significantly influenced by the applied potential of the electrodeposition step. The electrochemical activity of the synthesized electrode was tested by conducting hydrogen adsorption-desorption study and oxygen reduction reaction.
机译：本文讨论了纳米结构的铂涂层钛电极材料的合成与表征。在室温下，由氯铂酸在Ti基片上电沉积Pt颗粒。基于循环伏安法研究和紫外可见光谱法，证实了Pt（IV）直接还原为Pt（0）。在扫描电子显微镜下观察到Pt颗粒的形态，结果表明，在60 s的持续时间内，具有所需尺寸的Pt颗粒从5 mM电解质浓度沉积在Ti上。经过水热还原的Ti衬底上的电沉积Pt颗粒实现了完全覆盖。进一步的显微镜观察和能量分散光谱结果表明，电沉积的Pt颗粒起着核的作用，并在水热还原过程中增强了颗粒的进一步生长和覆盖。另外，发现水热还原后的Pt颗粒的形态和表面覆盖率受到电沉积步骤的施加电势的显着影响。通过进行氢吸附-脱附研究和氧还原反应来测试合成电极的电化学活性。

著录项

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