A novel titanium-supported silver electrode for electrochemical oxidation of borohydride

YI Qingfeng; LI Lei

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A novel titanium-supported silver electrode for electrochemical oxidation of borohydride

更新时间：2025-12-10

- A novel titanium-supported silver electrode for electrochemical oxidation of borohydride
- CIESC Journal Issue 2, Pages: 455-459(2009)
- 作者机构：
  
  湖南科技大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 February 2009，
  
  Published：05 February 2009
- 稿件说明：
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YI Qingfeng, LI Lei. A novel titanium-supported silver electrode for electrochemical oxidation of borohydride[J]. CIESC Journal, 2009, (2): 455-459.
DOI：

YI Qingfeng, LI Lei. A novel titanium-supported silver electrode for electrochemical oxidation of borohydride[J]. CIESC Journal, 2009, (2): 455-459. DOI：

摘要

利用水热法，以聚乙二醇为还原剂将硝酸银还原

产生的金属银颗粒直接沉积于钛表面，制备出具有三维网状结构的新型钛基银电极 (Ag/Ti)。利用循环伏安（CV）技术研究了碱性溶液中，Ag/Ti对硼氢化钠氧化的电催化活性。结果表明，硼氢化物在Ag/Ti电极上的氧化属直接电化学氧化过程，Ag/Ti电极对硼氢化物的电化学氧化表现出极高的电流密度，并且硼氢化物氧化的起始电位较低，约为-0.64 V vs SCE，说明Ag/Ti电极对硼氢化物氧化具有高度的电催化活性，有望作为硼氢化物燃料电池的阳极材料而得到应用。

Abstract

A novel titanium-supported silver catalyst（Ag/Ti）with a 3D network structure was prepared by the hydrothermal process using polyethylene glycol as a reduction agent.Electrocatalytic activity of the Ag/Ti electrode towards borohydride oxidation was evaluated by cyclic voltammograms（CVs）.A direct oxidation process of borohydride on the Ag/Ti electrode was observed.The results showed that the Ag/Ti electrode presented a high anodic current density for borohydride oxidation，and the onset potential for borohydride oxidation was ca -0.64 V vs SCE at BH-4 concentration of 0.1 mol·L-1.This indicated that the Ag/Ti electrode exhibited high electrocatalytic activity for borohydride oxidation and it would be a promising anode used in direct borohydride fuel cells.

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