Cr掺杂NiCo LDH/NF的制备及OER催化性能

doi:10.11896/cldb.25030003

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Abstract A central topic in electrocatalysis is the development of an efficient and cost-effective electrocatalyst for the oxygen evolution reaction (OER). Herein, we developed a Cr-doped NiCo LDH (Cr-NiCo LDH) nanocomposites on nickel foam (NF). The resultant nanohybrid exhibits a hierarchical structure composed of numerous nanowires which facilitates the exposure of a large number of reactive sites. Cr doping benefits for the formation of high-valence ions (Co³⁺ and Ni³⁺) near the surface of the electrocatalyst. The Cr-NiCo LDH-120/NF electrocatalyst presents the outstanding OER performance, with the lowest overpotentials of 273 and 329 mV at current densities of 10 and 100 mA·cm^-2 respectively, the smallest Tafel slope of 59.83 mV·dec^-1, and a remarkable stability over 48 h. This work presents a new approach for rationally designing highly-efficient and non-noble metal electrocatalysts.

Key words： water electrolysis oxygen evolution reaction NiCo LDH Cr doping

Published: 25 March 2026 Online: 2026-04-03

CLC number:

TB331

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	Articles by authors
	LEI Wanying
	TAN Ziqiang
	YANG Xinxin
	ZHANG Xinshu
	DU Yi
	LI Shisheng
	GAO Zhi

Cite this article:

LEI Wanying,TAN Ziqiang,YANG Xinxin, et al. Preparation of Cr Doped NiCo LDH/NF and Its OER Catalytic Performance[J]. Materials Reports, 2026, 40(6): 25030003-5.

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https://www.mater-rep.com/EN/10.11896/cldb.25030003 OR https://www.mater-rep.com/EN/Y2026/V40/I6/25030003

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