三维Ni3S2@NiCo-LDH纳米复合材料合成及其电氧化尿素制氢性能研究
Synthesis of three-dimensional Ni3S2@NiCo-LDH nanocomposite and study on its properties in hydrogen production from electro-oxidation of urea
王志豪 1范金成 1崔柯昕 1肖国才 1高善强 1黄婷 1谭子聪1
作者信息
- 1. 长沙理工大学材料科学与工程学院,湖南长沙 410000
- 折叠
摘要
为设计高效、廉价和耐用的催化裂解水制氢电催化剂,合成了Ni3S2纳米线@NiCo-LDH纳米复合材料(Ni3S2@NiCo-LDH).结果表明,该复合材料具有大量的活性位点,表现出很好的电催化制氢性能.在含有尿素的KOH电解液中,Ni3S2@NiCo-LDH电极材料仅需1.373 V就能达到10 mA/cm2的电流密度.在双电极体系Ni3S2@NiCo-LDH//Pt中,电流密度为10 mA/cm2时电压仅为1.463 V.因此,Ni3S2@NiCo-LDH纳米复合材料是一种优良的新型催化水解产氢电催化剂.
Abstract
Aiming to design efficient,inexpensive,and durable electrocatalyst for hydrogen production via catalytic cracking of water,Ni3S2 nanowire@NiCo-LDH nanocomposite(Ni3S2@NiCo-LDH)is synthesized.The results show that the prepared composite has a large number of active sites and exhibits excellent electrocatalytic hydrogen production performance.Ni3S2@NiCo-LDH electrode material achieves a current density of 10 mA·cm-2 at only 1.373 V in a KOH electrolyte containing urea.In Ni3S2@NiCo-LDH//Pt,a two-electrode system,the voltage is only 1.463 V at a current density of 10 mA·cm-2.It is verified that Ni3S2@NiCo-LDH nanocomposite is an excellent new catalytic hydrolysis hydrogen production electrocatalyst.
关键词
纳米材料/复合材料/催化剂/制氢/尿素氧化Key words
nanomaterials/composite/catalysis/hydrogen production/urea oxidation引用本文复制引用
基金项目
湖南省自然科学基金(2021JJ30708)
出版年
2024
NETL
NSTL
万方数据