Superb All-pH Hydrogen Evolution Performances Powered by Ultralow Pt-Decorated Hierarchical Ni-Mo Porous Microcolumns

被引:165
作者
Yu, Wenli [1 ]
Chen, Zhi [1 ]
Fu, Yunlei [1 ]
Xiao, Weiping [3 ]
Dong, Bin [2 ]
Chai, Yongming [2 ]
Wu, Zexing [1 ]
Wang, Lei [1 ]
机构
[1] Qingdao Univ Sci & Technol, Int Sci & Technol Cooperat Base Ecochem Engn & Gr, Key Lab Ecochem Engn, Minist Educ,Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
[2] China Univ Petr East China, Coll Chem & Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China
[3] Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
electrocatalysts; hydrogen evolution reactions; microcolumns; overall water splitting; ultralow Pt; HIGHLY EFFICIENT; ELECTROCATALYST; NANOSHEETS; CATALYSTS; NITRIDES; ARRAYS;
D O I
10.1002/adfm.202210855
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Achieving efficient and robust hydrogen evolution reaction (HER) electrocatalysts under all-pH conditions is significant for clean hydrogen production. Herein, an ultralow Pt-decorated hierarchical Ni-Mo porous hybrid, consisting of Ni3Mo3N on MoO2 microcolumns, is developed for all-pH HER with remarkable catalytic performances, owing to the porous structure, strong metal-support interaction, along with ultralow Pt nanoparticles and multichannel nickel foam support. The superhydrophilic and aerophilic surfaces favor mass transport during the HER process. Consequently, the porous Pt/Ni-Mo-N-O microcolumns present remarkable HER activity and durability with low overpotentials of 40.6, 101.1, and 89.5 mV to obtain 100 mA cm(-2) in basic, neutral, and acid media, respectively. Moreover, the excellent performance in alkaline seawater (40.4 mV@100 mA cm(-2)) even suppresses most of over-reported catalysts. More importantly, the two-electrode cell, assembled with Pt/Ni-Mo-N-O and NiMoO4 as cathode and anode, exhibits excellent performance towards overall-water electrolysis with an ultralow cell voltage of 1.56 V@100 mA cm(-2).
引用
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页数:14
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