纳米级电解水产氢催化剂的设计、合成与性能
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- 英文论文题名：The nanoscale catalysts for hydrogen evolution from water electrolysis: Design, Synthesis and Performance
- 论文作者：张兵 ; 史艳梅 ; 吴睿 ; 张競方 ; 李凯丹 ; 许友
- 英文论文作者：Bin Zhang ; Yanmei Shi ; Rui Wu ; Jingfang Zhang ; Kaidan Li ; You Xu ; Department of Chemistry ; School of Science ; Tianjin University
- 年：2016
- 作者机构：天津大学理学院化学系;
- 论文关键词：电解水产氢 ; 氧空位 ; 过渡金属磷化物 ; 疏气 ; 异质
- 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-第三十七分会：纳米催化
- 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-第三十七分会 ; 纳米催化
- 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：217k
- 原文格式：D
- 会议级别：全国
摘要
利用电解水技术来高效地制备零污染、低碳、高能量密度的氢气,被认为是解决能源危机的最有效途径之一~([1])。为了提高效率、降低成本,一方面,需要积极寻求合适的非贵金属催化剂来替代传统的贵金属催化剂;另一方面,则需要对已有的高活性催化剂进行结构修饰和组分调控,以进一步增强其催化活性和稳定性。为此,1)利用阴离子交换反应成功得到了无机多孔FeP纳米片,并在国际上率先报道了纳米过渡金属磷化物用于电催化产氢测试~([2]);2)利用简便的液相合成方法制备了具有亲水疏气表面的自支撑Ni2P纳米片/泡沫镍复合材料作为高效稳定的全pH电解水产氢催化剂~([3]);3)我们提出了新颖简便的固相"抽出"法,制备了具有原位碳和大量氧空位的导电性增强的WO_2/C纳米线,并表现出了优异且稳定的电化学产氢性能~([4]);4)提出了一种表面部分原位氧化策略,合成了可用于中性电解水产氢的自支撑CoO/CoSe_2异质纳米带催化剂[5]。
Producing hydrogen by water electrolysis has been the most promising solution to the current energy crisis. Generally, there are two different strategies towards the electrocatalysts to enhance efficiency and lower cost. One is to explore new low cost non-noble metal electrocatalysts with outstanding performance, while the other is structure modification and component manipulation to the existing electrocatalysts. Therefore, 1) Nanoporous FeP nanosheets are firstly reported to be used as electrocatalysts for electrochemical HER. 2) A facile solution synthesis to fabricate self-supported Ni_2P nanosheets/Ni foam composite with aerophobic surface for high performance HER in a wide pH range. 3) A novel oxygen-extraction method is adopted to synthesize metallic WO_2-carbon mesoporous nanowires with abundant oxygen vacancies and enhanced conductivity for high performance HER. 4) We also present a facile in-situ partial surface-oxidation strategy to integrate CoO domains with CoSe_2 nanobelts as heterogeneous self-supported HER electrocatalyst in neutral media.
Producing hydrogen by water electrolysis has been the most promising solution to the current energy crisis. Generally, there are two different strategies towards the electrocatalysts to enhance efficiency and lower cost. One is to explore new low cost non-noble metal electrocatalysts with outstanding performance, while the other is structure modification and component manipulation to the existing electrocatalysts. Therefore, 1) Nanoporous FeP nanosheets are firstly reported to be used as electrocatalysts for electrochemical HER. 2) A facile solution synthesis to fabricate self-supported Ni_2P nanosheets/Ni foam composite with aerophobic surface for high performance HER in a wide pH range. 3) A novel oxygen-extraction method is adopted to synthesize metallic WO_2-carbon mesoporous nanowires with abundant oxygen vacancies and enhanced conductivity for high performance HER. 4) We also present a facile in-situ partial surface-oxidation strategy to integrate CoO domains with CoSe_2 nanobelts as heterogeneous self-supported HER electrocatalyst in neutral media.
引文
[1]Shi,Y.;Zhang,B.Chem.Soc.Rev.2016,45:1529.
[2]Xu,Y.;Wu,R.;Zhang,J.;Shi,Y.;Zhang,B.Chem.Commun.2013,49:6656.
[3]Shi,Y.;Xu,Y.;Zhuo,S.;Zhang,J.;Zhang,B.ACS Appl.Mater.Int.2015,7:2376.
[4]Wu,R.;Zhang,J.;Shi,Y.;Liu,D.;Zhang,B.J.Am.Chem.Soc.2015,137:6983.
[5]Li,K.;Zhang,J.;Wu,R.;Yu,Y.;Zhang,B.Adv.Sci.2016,DOI:10.1002/advs.201500426.
[2]Xu,Y.;Wu,R.;Zhang,J.;Shi,Y.;Zhang,B.Chem.Commun.2013,49:6656.
[3]Shi,Y.;Xu,Y.;Zhuo,S.;Zhang,J.;Zhang,B.ACS Appl.Mater.Int.2015,7:2376.
[4]Wu,R.;Zhang,J.;Shi,Y.;Liu,D.;Zhang,B.J.Am.Chem.Soc.2015,137:6983.
[5]Li,K.;Zhang,J.;Wu,R.;Yu,Y.;Zhang,B.Adv.Sci.2016,DOI:10.1002/advs.201500426.
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