介孔氧化镍材料的制备和性能研究  

Synthesis and properties of mesoporous nickel oxide

作　　者：吕世权[1] 齐春玉 LYU Shi-quan;QI Chun-yu(College of Physics,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2022年第2期19-24,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(51902126)。

摘　　要：为了开发新型电催化水解析氢与析氧材料,采用配位协同自组装法合成了介孔金属氧化镍(NiO)材料,介孔NiO材料通过350℃焙烧2 h得到结晶良好的纯相,为立方面心结构.透射电子显微镜证明材料具有均匀的介孔结构,氮气吸附脱附等温线显示获得的介孔NiO具有高的比表面积和大的孔体积.合成的NiO与Sm_(0.2)Ce_(0.8)O_(1.9)(SDC)纳米复合材料在10 mA/cm^(2)的电流密度时过电位为1.520 V,是良好的催化性能材料.以上研究结果表明,介孔NiO可以作为电催化水解的候选材料.In order to develop a new electrocatalytic hydrogen evolution and oxygen evolution material,the mesoporous metal oxide NiO material was synthesized by coordination cooperative self-assembly method in this work.The mesoporous NiO material calcinated at 350℃for 2 h obtains a pure phase with good crystallization,which is a face-centred cubic structure.Field-emission transmission electron microscopy shows that the material has the uniform mesoporous structure,and nitrogen adsorption-desorption isotherms shows that the obtained mesoporous NiO possess high specific surface areas and large pore volumes.The overpotential of NiO+SDC nanocomposite is 1.520 V at the current density of 10 mA/cm^(2),which is a good OER catalytic material.These results indicate that mesoporous NiO can be used as a candidate material for electrocatalytic hydrolysis.

关 键 词：电催化水解 氧化镍 介孔 

分 类 号：O643.3[理学—物理化学]