TY - JOUR
T1 - Effect of high-pressure torsion on the hydrogen evolution performances of a melt-spun amorphous Fe73.5Si13.5B9Cu1Nb3 alloy
AU - Chu, Fei
AU - Wu, Kaiyao
AU - Meng, Yuying
AU - Edalati, Kaveh
AU - Lin, Huai Jun
N1 - Funding Information:
This work was financially supported by National Natural Science Foundation of China (No. 52071157 ), Guangdong Basic and Applied Basic Research Foundation , China (No. 2019A1515011985 ), Guangzhou Science and Technology Plan Project , China (No. 202102020821 ) and Guangzhou Science and Technology Association Young Talent Lifting Project , China (No. X20200301071 ). The author KE thanks MEXT , Japan for a Grant-in-Aid for Scientific Research (No. 21H00150 ).
Publisher Copyright:
© 2021 Hydrogen Energy Publications LLC
PY - 2021/7/16
Y1 - 2021/7/16
N2 - In this work, a melt-spun amorphous Fe73.5Si13.5B9Cu1Nb3 alloy is subjected to high-pressure torsion (HPT) treatment under 6 GPa in order to enhance the alkaline hydrogen evolution reaction (HER) performance. Different HPT turns, including 1, 2, 5 and 10, are selected and the samples are marked as HPT-1N, HPT-2N, HPT-5N and HPT-10 N, respectively. The HPT treatment can lead to a significant structural change such as partial crystallization and defect generation on the Fe-based amorphous alloy with a considerable increase in the HER electrocatalytic activity. The HPT-5N sample shows the best catalytic performance, with an overpotential of only 174 mV at 10 mA cm−2 current density in 1 M KOH, which is 244 mV lower than that of the melt-spun alloy at the same condition. Moreover, it was established that the HPT-treated amorphous alloy shows good stability during the HER cycling process.
AB - In this work, a melt-spun amorphous Fe73.5Si13.5B9Cu1Nb3 alloy is subjected to high-pressure torsion (HPT) treatment under 6 GPa in order to enhance the alkaline hydrogen evolution reaction (HER) performance. Different HPT turns, including 1, 2, 5 and 10, are selected and the samples are marked as HPT-1N, HPT-2N, HPT-5N and HPT-10 N, respectively. The HPT treatment can lead to a significant structural change such as partial crystallization and defect generation on the Fe-based amorphous alloy with a considerable increase in the HER electrocatalytic activity. The HPT-5N sample shows the best catalytic performance, with an overpotential of only 174 mV at 10 mA cm−2 current density in 1 M KOH, which is 244 mV lower than that of the melt-spun alloy at the same condition. Moreover, it was established that the HPT-treated amorphous alloy shows good stability during the HER cycling process.
UR - http://www.scopus.com/inward/record.url?scp=85107061121&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85107061121&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2021.05.042
DO - 10.1016/j.ijhydene.2021.05.042
M3 - Article
AN - SCOPUS:85107061121
SN - 0360-3199
VL - 46
SP - 25029
EP - 25038
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 49
ER -
