电沉积钴镍合金作为高效的全电解水双功能催化剂
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- 英文论文题名：Electrodeposition CoNi Alloy as Superior Bifunctional Electrocatalysts for Overall Water Splitting
- 论文作者：李群 ; 杨秀荣
- 英文论文作者：Qun Li ; Xiurong yang ; State Key Laboratory of Electroanalytical Chemistry ; Changchun Institute of Applied Chemistry ; Chinese Academy of Sciences ; University of Chinese Academy of Sciences
- 年：2016
- 作者机构：中科院长春应用化学研究所电分析国家重点实验室;中国科学院大学;
- 论文关键词：电沉积 ; 钴镍合金 ; 水的全电解
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：O643.36
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：134k
- 原文格式：D
- 会议级别：全国
摘要
在有氯化物和氯化铵存在的电解槽中通过电沉积的方法在钛网上沉积钴镍合金(CoNi_x)。实验系统的研究了电解液组成,沉积时间以及沉积电流密度对沉积薄膜的影响。通过扫描电子显微镜(SEM)和X射线衍射(XRD)对材料形态和相应的晶体结构进行了表征。实验探究了沉积薄膜的电化学性能,包括析氢和析氧的电流密度,塔菲尔斜率和稳定性测试。实验表明在1.0MKOH电解液中,作为析氢和析氧的催化剂使用时CoNi_2表现出了优异的催化活性。
Cobalt-Nickel alloys(Co Nix) were electrodeposited on titanium mesh in the chloride electrolytes with adding ammonium chloride into the baths. The effects of bath composition, deposition time and current density on the electrodeposited thin films were systematically explored. The morphology and corresponding crystal structure of deposits were evaluated by scanning electron microscopy(SEM) and X-ray diffraction(XRD). The electrochemical properties of the deposited film, including the current densities, the Tafel slope and stability testing of hydrogen evolution and oxygen evolution for Co Nix were explored. CoNi_2 as bifunctional electrocatalysts for overall water splitting displays superior catalytic activity.
Cobalt-Nickel alloys(Co Nix) were electrodeposited on titanium mesh in the chloride electrolytes with adding ammonium chloride into the baths. The effects of bath composition, deposition time and current density on the electrodeposited thin films were systematically explored. The morphology and corresponding crystal structure of deposits were evaluated by scanning electron microscopy(SEM) and X-ray diffraction(XRD). The electrochemical properties of the deposited film, including the current densities, the Tafel slope and stability testing of hydrogen evolution and oxygen evolution for Co Nix were explored. CoNi_2 as bifunctional electrocatalysts for overall water splitting displays superior catalytic activity.
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