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- Title
Facile Immersing Synthesis of Pt Single Atoms Supported on Sulfide for Bifunctional toward Seawater Electrolysis.
- Authors
Shen, Jian; Yang, Guotao; Li, Tianshui; Liu, Wei; Sha, Qihao; Zhong, Zheng; Kuang, Yun
- Abstract
Seawater electrolysis for hydrogen production represents a substantial opportunity to curtail production expenditures and exhibits considerable potential for various industrial applications. Platinum-based precious metals exhibit excellent activity for water electrolysis. However, their limited reserves and high costs impede their widespread use on a large scale. Single-atom catalysts, characterized by low loading and high utilization efficiency, represent a viable alternative, and the development of simple synthesis methods can facilitate their practical application. In this work, we report the facile synthesis of a single-atom Pt-loaded NiCoFeSx (Pt@NiCoFeSx) bifunctional catalytic electrode using a simple impregnation method on a nickel foam substrate. The resulting electrode exhibits low overpotentials for both HER (60 mV@10 mA cm−2) and OER (201 mV@10 mA cm−2) in alkaline seawater electrolytes. When incorporated into a seawater electrolyzer, this electrode achieves a direct current energy consumption of only 4.18 kWh/Nm3H2 over a 100 h test period with negligible decay. These findings demonstrate the potential of our approach for industrial-scale seawater electrolysis.
- Subjects
OXYGEN evolution reactions; WATER electrolysis; PRECIOUS metals; HYDROGEN production; SEAWATER
- Publication
Catalysts (2073-4344), 2024, Vol 14, Issue 8, p477
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal14080477