首页|Efficient optimization of electron transfer pathway by constructing phosphide/ceria interface boosts seawater hydrogen production

Efficient optimization of electron transfer pathway by constructing phosphide/ceria interface boosts seawater hydrogen production

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Developing efficient and durable hydrogen evolution reaction(HER)electrocatalysts is one of the most important issues for the commercialization of seawater electrolysis,but it remains challenging.Here,we report a CeO2-CoP nanoneedle array catalyst loaded on Ti mesh(CeO2-CoP/TM)with work-function-induced directional charge transport properties.The CeO2-CoP/TM catalyst showed superior HER catalytic activity and stability,with overpotentials of 41 and 60 mV to attain 10 mA cm2,in 1 M KOH and 1 M KOH+seawater electrolyte,respectively.Experimental results and theoretical calculations reveal that the work function drives the charge transfer from CeO2 to CoP,which effectively balances the electronic density of CoP and CeO2,optimizes the d-band center,and accelerates the water activation kinetics,thus enhancing the HER activity.The solar-driven water electrolysis device displays a high and stable solar-to-hydrogen conversion efficiency of 19.6％.This study offers a work function-induced directional charge transport strategy to design efficient and durable catalysts for hydrogen production.

Work functionHeterostructureCharge transportSeawater splittingSolar-to-hydrogen

Yifan Zhao、Lingfeng Yang、Youyu Long、Min Xi、Anran Chen、Hua Zhang

展开 >

School of Materials and Energy,Yunnan University,Kunming 650091,Yunnan,China

Electron Microscopy Centre of Yunnan University,Yunnan University,Kunming 650091,Yunnan,China

National Natural Science Foundation of ChinaYunnan Applied Basic Research ProjectsYunnan Applied Basic Research ProjectsScientific Research Fund Project of Yunnan Provincial Department of EducationEducation Reform Research Project of Yunnan UniversityYunnan Revitalization Talent Support Program

22369025202201AT070095202301AT0700982023Y02622021Z06

2024

10.1016/j.jechem.2024.04.008

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.95(8)