Phosphorus Incorporation Increases the Oxygen Electrocatalytic Activity of Co-N Catalysts.

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Tác giả: Gege He, Shun Lu, Xiaozhen Lv, Hongyu Mi, Jinke Shen, Junsheng Wang

Ngôn ngữ: eng

Ký hiệu phân loại: 133.594 Types or schools of astrology originating in or associated with a

Thông tin xuất bản: United States : Langmuir : the ACS journal of surfaces and colloids , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 650960

Transition metal and nitrogen codoped graphitic carbon materials with Co-N bonds serve as key non-noble-metal catalysts for the oxygen evolution reaction (OER). To enhance catalytic efficiency, we explore the anchoring of Co-N bonds on nitrogen-doped graphitic carbon (NC) substrates with varied phosphorus content. The catalyst is synthesized through a straightforward sintering and phosphating process of ZIF@DCA in a tube furnace. X-ray photoelectron spectroscopy (XPS) demonstrated that the Co-N bonds effectively formed an efficient charge transfer channel, removing the barrier that separated the Co-N active site from the work electrode surface. Phosphorus is uniformly distributed across the Co-N substrate, ensuring the exposure of most Co-N active sites during the electrochemical reaction. With favorable structural and electronic attributes, P/Co-N-2 showcases the lowest overpotentials at 10 and 300 mA cm
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