论文成果
Defects and morphology engineering for constructing V S-Ni 3 S 2 @V S-Cu 2 S nanotube heterojunction arrays toward efficient bifunctional electrocatalyst for overall water splitting
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关键字:MOS2; NANOPARTICLES; CATALYST; ZINC
摘要:The development of highly active, stable and inexpensive electrocatalysts for hydrogen production by defects and morphology engineering remains a great challenge. Herein, S vacancies -rich Ni 3 S 2 @Cu 2 S nanotube heterojunction arrays were in -situ grown on copper foam (V S -Ni 3 S 2 @V S -Cu 2 S NHAs/CF) for efficient electrocatalytic overall water splitting. With the merits of nanotube arrays and efficient electronic modulation drived by the 0D vacancy defect and 2D heterojunction defect, the resultant V S -Ni 3 S 2 @V S -Cu 2 S NHAs/CF electrocatalyst exhibits excellent electrocatalytic activity with a low overpotential of 47 mV for the hydrogen evolution reaction (HER) at 10 mA cm -2 current density, and 263 mV for the oxygen evolution reaction (OER) at 50 mA cm -2 current density, as well as a cell voltage of 1.48 V at 10 mA cm -2 . Moreover, the nanotube heterojunction arrays endows V S -Ni 3 S 2 @V S -Cu 2 S NHAs/CF with outstanding stability in long-term catalytic processes, as confirmed by the continuous chronopotentiometry tests at current densities of 10 mA cm -2 for 100 h. (c) 2024 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
卷号:94
期号:
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李桂村

教授 博士生导师 硕士生导师

教师拼音名称:liguicun

出生日期:1974-05-12

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所在单位:材料学院综合办公室

职务:材料科学与工程学院院长

学历:博士研究生

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性别:男

联系方式:guicunli@qust.edu.cn Tel:13730918070

学位:工学博士

毕业院校:中国海洋大学

所属院系:材料科学与工程学院

学科:材料物理与化学

曾获荣誉:

2016-01-01    山东省有突出贡献的中青年专家

2012-11-07    山东省第三届优秀研究生指导教师

2011-04-01    青岛拔尖人才

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