US 11,942,643 B2
Doped sodium vanadium phosphate and preparation method and application thereof
Haijun Yu, Guangdong (CN); Yingsheng Zhong, Guangdong (CN); Aixia Li, Guangdong (CN); Yinghao Xie, Guangdong (CN); Xuemei Zhang, Guangdong (CN); and Changdong Li, Guangdong (CN)
Assigned to GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., Guangdong (CN); HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., Hunan (CN); and HUNAN BRUNP EV RECYCLING CO., LTD., Hunan (CN)
Appl. No. 18/265,847
Filed by GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., Guangdong (CN); HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., Hunan (CN); and HUNAN BRUNP EV RECYCLING CO., LTD., Hunan (CN)
PCT Filed Aug. 12, 2022, PCT No. PCT/CN2022/112241
§ 371(c)(1), (2) Date Jun. 7, 2023,
PCT Pub. No. WO2023/071411, PCT Pub. Date May 4, 2023.
Claims priority of application No. 202111272724.8 (CN), filed on Oct. 29, 2021.
Prior Publication US 2024/0038993 A1, Feb. 1, 2024
Int. Cl. H01M 4/62 (2006.01); C01B 25/45 (2006.01); C01G 39/02 (2006.01); H01M 4/58 (2010.01); H01M 10/054 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/62 (2013.01) [C01B 25/45 (2013.01); C01G 39/02 (2013.01); H01M 4/5825 (2013.01); H01M 10/054 (2013.01); C01P 2004/03 (2013.01); C01P 2004/80 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A preparation method of a nitrogen-doped peony-shaped molybdenum oxide, comprising the following steps of:
(1) adding a regulator into a molybdenum-containing solution for reaction, concentrating and thermal treatment to obtain a peony-shaped molybdenum oxide; and
(2) dissolving the peony-shaped molybdenum oxide in a conditioning agent, and adding an amine source for standing, centrifuging, washing and heat treatment, thus obtaining the nitrogen-doped peony-shaped molybdenum oxide; wherein, the regulator is at least one of nitric acid, ammonium nitrate, sodium persulfate, ammonium persulfate, concentrated sulfuric acid, H2O2, ozone or sodium hypochlorite;
wherein in step (2), the conditioning agent is at least one of sodium acetate, ammonium acetate, sodium formate, diaminoethane, sodium oxalate, ammonium benzoate, sodium phenylacetate, sodium propionate, sodium tartrate, sodium citrate or ammonium citrate; and
wherein in step (2), the amine source is at least one of aniline, dimethylamine, trimethylamine, benzylamine, phenethylamine, ethamine, diethylamine, propylamine, phenylene diamine, benzylamine, benzene dimethylamine or benzedrinum.