	US 11,668,016 B2
	Ultra-thin carbon-layer composite material modified by nickel nanoclusters and vanadium carbide particles and its preparation method and application
Jianfeng Huang, Xi'an (CN); Qianqian Liu, Xi'an (CN); Liangliang Feng, Xi'an (CN); Liyun Cao, Xi'an (CN); and Kang Li, Xi'an (CN)
Assigned to SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY, Shaanxi (CN)
Filed by SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY, Shaanxi (CN)
Filed on Jul. 20, 2021, as Appl. No. 17/380,716.
Claims priority of application No. 202010717044.1 (CN), filed on Jul. 23, 2020.
Prior Publication US 2022/0025531 A1, Jan. 27, 2022
Int. Cl. C25B 11/04 (2021.01); C25B 1/04 (2021.01); C25B 11/065 (2021.01); C25B 11/091 (2021.01)

CPC C25B 11/04 (2013.01) [C25B 1/04 (2013.01); C25B 11/065 (2021.01); C25B 11/091 (2021.01)]

3 Claims

1. A preparation method of a carbon-layer composite material modified by nickel nanoclusters and vanadium carbide particles, comprising:

(1) mixing a carbon source and a precursor at a mass ratio of (2 to 4):1 to obtain a raw material mixture; and

(2) putting the raw material mixture in an inert atmosphere, heating at 500 to 550° C. for 1 to 2.5 hours, and then heating at 800 to 900° C. for 1.5 to 2.5 hours, to obtain the composite material,

wherein the precursor is obtained via microwave hydrothermal reaction of an aqueous solution followed by an ultrasonic treatment,

wherein the aqueous solution comprises a nickel source, a vanadium source, and an alkali source, and

wherein a mole ratio of the nickel source, the vanadium source, and the alkali source is (0.5 to 2):1:(1.5 to 1.6).