US 12,168,828 B2
Transition metal-doped nickel phosphide nanostructure, method for preparing same, and catalyst for electrochemical water decomposition including transition metal-doped nickel phosphide nanostructure
Sangcheol Paik, Gyeonggi-do (KR); Kijung Yong, Gyeongsangbuk-do (KR); and Hyogyun Roh, Gyeongsangbuk-do (KR)
Assigned to S-Oil Corporation, Seoul (KR); and POSTECH Research and Business Development Foundation, Gyeongsangbuk-do (KR)
Filed by S-Oil Corporation, Seoul (KR); and POSTECH Research and Business Development Foundation, Gyeongsangbuk-do (KR)
Filed on Jun. 30, 2022, as Appl. No. 17/854,075.
Claims priority of application No. 10-2021-0086940 (KR), filed on Jul. 2, 2021.
Prior Publication US 2023/0002922 A1, Jan. 5, 2023
Int. Cl. C25B 11/075 (2021.01); C23C 18/12 (2006.01); C25B 1/04 (2021.01); C25B 11/061 (2021.01)
CPC C25B 11/075 (2021.01) [C23C 18/1216 (2013.01); C23C 18/1295 (2013.01); C25B 1/04 (2013.01); C25B 11/061 (2021.01)] 12 Claims
OG exemplary drawing
 
1. A method for preparing a transition metal-doped nickel phosphide nanostructure, comprising:
a step of adding a zinc precursor and a hydroxide on a substrate and growing a plural zinc oxide nanostructures aligned on the substrate in a vertical direction;
a step of adding a nickel precursor and a transition metal precursor on the zinc oxide nanostructure and converting the zinc oxide nanostructure to a transition metal-doped nickel oxide nanostructure through primary heat treatment; and
a step of adding a phosphorus precursor to the transition metal-doped nickel oxide nanostructure and preparing a transition metal-doped nickel phosphide nanostructure through secondary heat treatment.