daohang fenxiangbox searchbox qikanlogonew daohangnew searchboxnew navrightzone footerzone paper
中
Home > Journals > ACS Energy Letters
‹ Previous Article Next Article ›

Bimetallic Carbide as a Stable Hydrogen Evolution Catalyst in Harsh Acidic Water AITranslate

Meng Yang Zu; Peng Fei Liu; Chongwu Wang; Yun Wang; Li Rong Zheng; Bo Zhang; Huijun Zhao; Hua Gui Yang;
East China University of Science and Technology; East China University of Science and Technology; East China University of Science and Technology; Griffith University;Institute of High Energy Physics; Fudan University; Griffith University; East China University of Science and Technology
AITranslate
Publisher: ACS
Share Citation Information Add to Favorites

    Scan to share on WeChat or Moments

Use WeChat scan.
Share with WeChat friends or Moments

Abstract AITranslate

Cheap, efficient, and stable hydrogen evolution reaction (HER) electrocatalysts have long been pursued, owing to their scientific and technological importance. Currently, platinum has been regarded as the benchmarked HER electrocatalyst. Unfortunately, the low abundance and high cost impede its industrial applications. Here, we synthesize bimetallic carbide Mo6Ni6C grown on nickel foam as a HER catalyst, delivering a low overpotential of −51 mV at −10 mA cm–2 in 0.5 M H2SO4 for more than 200 h, which is among the best reported benchmarked HER catalysts in acid to date. On the basis of experimental observations and theoretical modeling, we ascribe the good activity to the proper Gibbs free energy of adsorbed hydrogen (ΔG(H*)) for the carbon active sites and attribute the stability to the corrosion-stable Mo–Mo bonds in the crystal structure. This work demonstrates the possibility for Mo6Ni6C to be one of the best candidates for HER electrocatalysts in the large-scale electrolysis industry.

KeyWords AITranslate

No data

Basic Information:

DOI：https://doi.org/10.1021/acsenergylett.7b00990

Chinese Library Classification Number:

Citation Information:

Cheap, efficient, and stable hydrogen evolution reaction (HER) electrocatalysts have long been pursued, owing to their scientific and technological importance. Currently, platinum has been regarded as the benchmarked HER electrocatalyst. Unfortunately, the low abundance and high cost impede its industrial applications. Here, we synthesize bimetallic carbide Mo6Ni6C grown on nickel foam as a HER catalyst, delivering a low overpotential of −51 mV at −10 mA cm–2 in 0.5 M H2SO4 for more than 200 h, which is among the best reported benchmarked HER catalysts in acid to date. On the basis of experimental observations and theoretical modeling, we ascribe the good activity to the proper Gibbs free energy of adsorbed hydrogen (ΔG(H*)) for the carbon active sites and attribute the stability to the corrosion-stable Mo–Mo bonds in the crystal structure. This work demonstrates the possibility for Mo6Ni6C to be one of the best candidates for HER electrocatalysts in the large-scale electrolysis industry.

quote

GB/T 7714-2015 [1] Meng Yang Zu, Peng Fei Liu, Chongwu Wang, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.7b00990.
MLA [1] Meng Yang Zu, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.7b00990.
APA [1] Meng Yang Zu, Peng Fei Liu, Chongwu Wang, Yun Wang, Li Rong Zheng, Bo Zhang, Huijun Zhao, & Hua Gui Yang. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.7b00990
IEEE [1] Meng Yang Zu, Peng Fei Liu, Chongwu Wang, Yun Wang, Li Rong Zheng, Bo Zhang, Huijun Zhao, and Hua Gui Yang, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.7b00990.