Rich Se nanoparticles modified cobalt carbonate hydroxide as an efficient electrocatalyst for boosted hydrogen evolution in alkaline conditions

Yi，Hao1,2; Zhang，Xian2; Zheng，Renji3,4; Song，Shaoxian2; An，Qing1; Yang，Huamei1

2021-11-01

10.1016/j.apsusc.2021.150505

APPLIED SURFACE SCIENCE   影响因子和分区

0169-4332

Nonprecious metal hydroxides are promising electrocatalyst candidates for oxygen evolution reaction. However, their hydrogen evolution reaction (HER) performance is not satisfactory, which limits their application for water splitting. Herein, a facile electrodeposition reduction strategy was applied to fabricate rich Se nanoparticles modified cobalt carbonate hydroxide nanoarrays on carbon cloth (Se NPs/CoCH NAs/CC) with η of 84.3 mV for HER, which is much smaller than that of original CoCH NAs/CC (η = 347.7 mV). The superior performance of Se NPs/CoCH NAs/CC was due to its large active surface area, rich active sites, and synergistic effect between Co-Se. DFT simulations also revealed that free energy for atomic hydrogen adsorption is much lower on Se NPs/CoCH (0.75 eV) than on CoCH (1.36 eV). Moreover, this work offered a simple and efficient strategy for developing hierarchical selenium/hydroxides with outstanding HER performance, which contributed to the cost and energy savings for mass hydrogen production.

Cobalt carbonate hydroxide Hydrogen evolution reaction Nanoarray Selenium modification, Energy savings

SCI ; EI

英语

其他

WOS:000681156600004

20212710591790

Cobalt compounds ; Electrocatalysts ; Energy conservation ; Free energy ; Gas adsorption ; Hydrogen production ; Nanoparticles ; Selenium ; Selenium compounds

Gas Fuels:522 ; Energy Conservation:525.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Solid State Physics:933

MATERIALS SCIENCE

2-s2.0-85109002775

Scopus

1.School of Artificial Intelligence,Wuchang University of Technology,Wuhan,430223,China
2.School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan,Luoshi Road 122,430070,China
3.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China

Yi，Hao,Zhang，Xian,Zheng，Renji,et al. Rich Se nanoparticles modified cobalt carbonate hydroxide as an efficient electrocatalyst for boosted hydrogen evolution in alkaline conditions[J]. APPLIED SURFACE SCIENCE,2021,565.

Yi，Hao,Zhang，Xian,Zheng，Renji,Song，Shaoxian,An，Qing,&Yang，Huamei.(2021).Rich Se nanoparticles modified cobalt carbonate hydroxide as an efficient electrocatalyst for boosted hydrogen evolution in alkaline conditions.APPLIED SURFACE SCIENCE,565.

Yi，Hao,et al."Rich Se nanoparticles modified cobalt carbonate hydroxide as an efficient electrocatalyst for boosted hydrogen evolution in alkaline conditions".APPLIED SURFACE SCIENCE 565(2021).