摘要
采用溶剂热法制备了金属有机框架材料MOF(Ni)-74及其与氧化石墨烯(GO)的复合材料MOF(Ni)-GO,并利用线性伏安扫描(LSV)等电化学方法在N_2饱和的0.5mol/L H_2SO_4溶液中对材料的电催化性能进行了检测。实验结果表明,GO的掺杂能显著提升金属有机框架材料MOF(Ni)-74的电催化活性。其中GO含量为8%时,所得复合材料表现出最好的电催化析氢活性,起始电势仅为-0.462V,塔菲尔斜率为110mV/dec,同时该材料也表现出很好的电化学稳定性。
Using a solvothermal method,the metal-organic framework MOF(Ni)-74 and a series of its derivatives MOF(Ni)-GO(w%)differing in graphene oxide(GO)content(w%)were synthesized,and subsequently the linear sweep voltammetry(LSV)test was conducted in a N2-saturated 0.5 mol/L H2SO4 solution in order to determine the electrocatalytic performance of the products to hydrogen evolution reaction(HER).Our experiment confirmed the significantly improved electrocatalytic activity of the GO-decorated MOF(Ni)-74 catalysts,among which the MOF(Ni)-GO(8%)exhibited the best electrochemical catalytic performance towards HER with the lowest onset potential(-0.462 V),the smallest Tafel slope(110 mV/dec),as well as an excellent electrochemical stability.
作者
褚梅
李曦
李娜
侯美静
李小争
董永志
王璐
CHU Mei;LI Xi;LI Na;HOU Meijing;LI Xiaozheng;DONG Yongzhi;WANG Lu(School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 43007)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2018年第9期1417-1422,共6页
Materials Reports
基金
国家自然科学基金(51273155)
中央高校基本科研业务费专项资金(2016IB005
2017IB007)