TY - JOUR
T1 - Twin boundaries boost the hydrogen evolution reaction on the solid solution of nickel and tungsten
AU - Tang, Jiuchao
AU - Niu, Jingjing
AU - Yang, Chengwu
AU - Rajendran, Saravanan
AU - Lei, Yongpeng
AU - Sawangphruk, Montree
AU - Zhang, Xinyu
AU - Qin, Jiaqian
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12/15
Y1 - 2022/12/15
N2 - The development of cost-effective electrocatalysts to produce high-purity hydrogen by electrochemical water splitting is critical to addressing resource and environmental problems. Theoretically, NiW materials are considered to be an excellent HER electrocatalyst. However, current NiW catalysts for HER are not satisfactory. Herein, the NiW solid solution with twin boundaries is successfully fabricated by facile electrodeposition on copper sheet. As compared with Ni, the NiW-0.6A catalyst shows enhanced HER activity in 1 M KOH with the overpotential of 98 mV at 10 mA/cm2. Besides, NiW-0.6A exhibits excellent stability for 100 h at 20 mA/cm2. The excellent HER performance of NiW-0.6A may be attributed to the intrinsic catalytic activity and the defective twin boundaries exposing many active sites. This work could provide feasible suggestions for the design of efficient and high-performance NiW electrocatalysts for HER process.
AB - The development of cost-effective electrocatalysts to produce high-purity hydrogen by electrochemical water splitting is critical to addressing resource and environmental problems. Theoretically, NiW materials are considered to be an excellent HER electrocatalyst. However, current NiW catalysts for HER are not satisfactory. Herein, the NiW solid solution with twin boundaries is successfully fabricated by facile electrodeposition on copper sheet. As compared with Ni, the NiW-0.6A catalyst shows enhanced HER activity in 1 M KOH with the overpotential of 98 mV at 10 mA/cm2. Besides, NiW-0.6A exhibits excellent stability for 100 h at 20 mA/cm2. The excellent HER performance of NiW-0.6A may be attributed to the intrinsic catalytic activity and the defective twin boundaries exposing many active sites. This work could provide feasible suggestions for the design of efficient and high-performance NiW electrocatalysts for HER process.
KW - Electrocatalyst
KW - Electrodeposition
KW - HER
KW - NiW alloy
KW - Twin boundaries
UR - https://www.scopus.com/pages/publications/85135709983
U2 - 10.1016/j.fuel.2022.125510
DO - 10.1016/j.fuel.2022.125510
M3 - Article
AN - SCOPUS:85135709983
SN - 0016-2361
VL - 330
JO - Fuel
JF - Fuel
M1 - 125510
ER -
