基于金属有机骨架前驱体制备纳米磷化镍催化剂

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第35
4期
2019 4 月
无机 化 学 学 报 CHINESE JOURNAL OF INORGANIC CHEMISTRY
Vol.35 No.4 1455-1462
基于金属有机骨架前驱体制备纳米磷化鎳催化剂
徐丹柿朱良奎2周丹1付煜荣1符小文1陈榕1李海霞柿 (-海南医学院药学院,海口 571199)
Keywords: metal-organic framework; nickel phosphide; nanoparticles; hydrogen evolution reaction; electrocatalysis
0 Introductiபைடு நூலகம்n
In the past few decades, the production of environmentally friendly energy has become a critical concern due to increasing environmental pollution and energy demandf1-3g. Hydrogen is considered to be one
(2吉林大学无机合成与制备化学国家重G实验室,吉林130012)
摘要:采用E基金属有机骨架化合物(Ni-MOF)为前驱体,通过低温碳化获得Ni@C,并通过磷化成功地制备了不同结构的磷化
E纳米颗粒0将所得材料应用于析氢反应(HER)催化剂,在Ni@C与红磷质量比为1:1及热解温度为500 #时获得的NilPl-500
Abstract: Herein, nickel phosphides nanoparticles with different phases were successfully prepared by multi-step calcination and phosphidation process at low temperature using Ni based MOF (Ni-MOF) as the precursor. The resulting materials were applied to the hydrogen evolution reaction (HER) catalyst, Ni1P1-500 obtained at a mass ratio of Ni@C to red phosphorus of 1:1 and a pyrolysis temperature of 500 $ exhibited a remarkably enhanced electrocatalytic performance with a current density of 10 mA-cm-2 at an overpotential of 174 mV and a superior durability for the HER in acid media. A small Tafel slope of 62 mV-dec -1 revealed a Desorption-Heyrovsky mechanism during the HER. The excellent electrocatalytic performance might be ascribed to the presence of the proton acceptor (P site) and hydride-acceptor (Ni site) centers on the surface of nickel phosphide.
of the most ideal and cleanest energy sourcesf4g. It is considered to be the main energy carrier due to its high energy storage, ideal combustion efficiency and non-toxicity. Water electrolysis is an alternative process and a desirable way to produce molecular hydrogen, but both half-reactions of water splitting,
关键词:金属有机骨架化合物;磷化E&纳米颗粒;析氢反应;电催化
中国分类号:O614.4
文献识别码:A
文章编号:1001-4461(2019)04-1455-04
DOI:10.11462/CJIC.2019.144
Preparation of Metal-Organic Framework-Derived Nano-Scale Nickel Phosphide Catalysts
表现出优异的电催化性能,在酸性介质中,
为10 mA-cm"2时,过电位为174 mV,并展现了良好的循环性能"较小的
Tafel斜率(62 mV• dec-1)揭不了析氢反应的机理为Desorption-Heyrovsky机制"优异的电催化性能可归因于磷化E催化剂表面存
在的质 体(P位点)和氢化物受体(Ni位点)活性中心"
收稿日期:2019-03-04o收修改稿日期:2019-05-05o 海南省自然科学基金(No.219QN219)、海南省重点研发项目(No.ZDYF2014024)和海南医学院人才科研基金资助项目 !通信联系人"E-mail: 1005036640@qq.com,lihx0401@163.com
XU Dan丸1 ZHU Liang-Kui2 ZHOU Dan1 FU Yu-Rong1 FU Xiao-Wen1 CHEN Rong1 LI Hai-Xia丸1
(^College of Pharmacy, Hainan Medical College, Haikou 571119, China) (2State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University^ Changchun 130012, China)
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