高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (8): 1415.doi: 10.7503/cjcu20160173

• 研究论文:无机化学 • 上一篇    下一篇

镍铁水滑石/还原氧化石墨烯的制备及电催化水氧化性能

杜世超1, 任志宇2(), 吴君2, 付宏刚2()   

  1. 1. 吉林大学理论化学研究所, 长春 130023
    2. 黑龙江大学功能无机材料教育部重点实验室, 化学化工与材料学院, 哈尔滨 150080
  • 收稿日期:2016-03-23 出版日期:2016-07-14 发布日期:2016-07-14
  • 作者简介:

    联系人简介: 付宏刚, 男, 博士, 教授, 主要从事应用化学和无机化学学科中的材料结构理论、 晶态半导体材料、 介孔材料及碳材料的合成与性能研究. E-mail: fuhg@vip.sina.com。任志宇, 女, 博士, 教授, 主要从事纳米复合材料的设计合成、 结构调控、 材料改性与电催化、 光催化及生物检测性质之间关系的研究. E-mail: zyren@hlju.edu.cn

  • 基金资助:
    国家自然科学基金(批准号: 21371053, 21573062)和黑龙江省自然科学基金(批准号: QC2013C009)资助

Ni-Fe LDH/Reduced Graphene Oxide as Catalyst for Oxygen Evolution Reaction

DU Shichao1, REN Zhiyu2,*(), WU Jun2, FU Honggang2,*()   

  1. 1. Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China
    2. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of China,School of Chemistry and Materials, Heilongjiang University, Harbin 150080, China
  • Received:2016-03-23 Online:2016-07-14 Published:2016-07-14
  • Contact: REN Zhiyu,FU Honggang E-mail:zyren@hlju.edu.cn;fuhg@vip.sina.com
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21371053, 21573062) and the Natural Science Foundation of Heilongjiang Province, China(No.QC2013C009)

摘要:

首先制备了不同镍/铁比的镍铁水滑石, 并通过液相剥离法得到水滑石纳米薄片溶胶, 随后将其与还原氧化石墨烯复合, 并对其进行了电催化水氧化的性能测试. 结果表明, 镍铁水滑石的剥离可以大幅度提高其电催化性能, 起峰电位为1.47 V, 电流密度为10 mA/cm2 时, 电位仅为1.53 V; 与还原氧化石墨烯复合后, 其催化活性得到了进一步提高, 在10 mA/cm2时电位降为 1.515 V.

关键词: 镍铁水滑石, 电催化水制氧, 分解水, 还原氧化石墨

Abstract:

The composites of Ni-Fe layered double hydroxide(LDH) and reduced graphene oxide(rGO) were successfully prepared via a simple exfoliation and electrostatic self-assembly and were used as catalysts for electrooxidation of water(oxygen evolution reaction, OER). The exfoliated Ni-Fe LDH samples exhibited much higher water oxidation activity than the bulk ones. The onset potential was 1.470 V vs. RHE and the potential for maintaining a current density of 10 mA/cm2 was 1.530 V vs. RHE. After being fabricated with rGO, the composite showed better performance for water oxidation than exfoliated Ni-Fe LDH, and the potential for maintaining a current density of 10 mA/cm2 was decreased to 1.515 V vs. RHE.

Key words: Ni-Fe layered double hydroxide(LDH), Oxygen evolution reaction, Water-splitting, Reduced graphene oxide(rGO)

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