Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 10, Issue 30, Pages 9956-9968Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c02520
Keywords
water splitting; self-supported integrated electrode; bimetallic phosphide heterojunction; large current density; AEMWE
Categories
Funding
- National Key R&D Program of China [2020YFA0710000]
- National Natural Science Foundation of China [22008170, 21978200, 22161142002, 22121004]
Ask authors/readers for more resources
This article reports a general method for fabricating bimetallic phosphide heterojunctions on nickel foam for water electrolysis. The heterojunctions exhibit low overpotentials and high current densities under industrial conditions, demonstrating good electrocatalytic performance.
Developing effective, stable, and economical catalysts toward overall water splitting under industrial conditions is crucial for the large-scale production of green hydrogen. Herein, we report a general method to fabricate bimetallic phosphide heterojunctions on nickel foam (NF) for water electrolysis. Benefiting from the unique self-supported integrated structure and optimized electronic structure, the Co2P-Ni12P5/NF and Fe2P-Ni12P5/NF heterojunction exhibits ultralow overpotentials of 219 mV for hydrogen evolution and 342 mV for oxygen evolution at 1000 mA cm(-2) in 1 M KOH, respectively. Notably, the assembled two-electrode system attains a high current density of 1000 mA cm(-2) with a low cell voltage of 1.678 V under simulated industrial electrolysis conditions. Furthermore, when applied in an anion-exchange membrane water electrolysis (AEMWE) cell, Co2P-Ni12P5/NF parallel to Fe2P-Ni12P5/NF exhibits superior performance over commercial Pt/C/NF parallel to IrO2/NF. Our study provides a general method for developing economical and practical water-splitting electrocatalysts for large-scale renewable hydrogen production.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available