Efficient hydrogen production on MoNi4 electrocatalysts with fast water dissociation kinetics
Technische Universität Dresden · Université Claude Bernard Lyon 1 · +7 more institutions
Abstract
Abstract Various platinum-free electrocatalysts have been explored for hydrogen evolution reaction in acidic solutions. However, in economical water-alkali electrolysers, sluggish water dissociation kinetics (Volmer step) on platinum-free electrocatalysts results in poor hydrogen-production activities. Here we report a MoNi 4 electrocatalyst supported by MoO 2 cuboids on nickel foam (MoNi 4 /MoO 2 @Ni), which is constructed by controlling the outward diffusion of nickel atoms on annealing precursor NiMoO 4 cuboids on nickel foam. Experimental and theoretical results confirm that a rapid Tafel-step-decided hydrogen evolution proceeds on MoNi 4 electrocatalyst. As a result, the MoNi 4 electrocatalyst exhibits…
Citation impact
- FWCI
- 30.92
- Percentile
- 100%
- References
- 49
Authors
9- JZJian ZhangCorresponding
Technische Universität Dresden
- TWTao Wang
Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Laboratoire de Chimie
- PLPan Liu
Tohoku University, Japan Science and Technology Agency, Advanced Institute of Materials Science
- ZLZhongquan Liao
Fraunhofer Institute for Ceramic Technologies and Systems
- SLShaohua Liu
Technische Universität Dresden
Topics & keywords
- Overpotential
- Electrocatalyst
- Tafel equation
- Platinum
- Nickel
- Electrolyte
- Dissociation (chemistry)
- Inorganic chemistry
- Clean water and sanitation