一步溶剂热法生成Zr-Ni_(0.96)S/NF纳米材料用于高效电催化产氢反应研究  

Study on synthesis of Zr-Ni_(0.96)S/NF nanomaterials for efficientelectrocatalytic hydrogen production reaction by one-step solvothermal method

作　　者：李锦涵 曹丽云[1] 赵勇 冯亮亮 Koji Kajiyoshi 黄剑锋[1] LI Jin-han;CAO Li-yun;ZHAO Yong;FENG Liang-liang;Koji Kajiyoshi;HUANG Jian-feng(School of Material Science and Engineering,International S&T Cooperation Foundation of Shaanxi Province,Shaanxi University of Science&Technology,Xi′an 710021,China;Guangdong Mona Lisa Group Co.,Ltd.,Foshan 528211,China;Research Laboratory of Hydrothermal Chemistry,Kochi University,Kochi 780-8520,Japan)

机构地区：[1]陕西科技大学材料科学与工程学院陕西省国际科技合作基地,陕西西安710021 [2]广东蒙娜丽莎集团有限公司,广东佛山528211 [3]日本高知大学水热化学研究实验室,日本高知780-8520

出　　处：《陕西科技大学学报》2023年第5期119-127,共9页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(52073166,52172049,U22A20144);陕西省国际科技合作项目-重点计划项目(2023GHZD-08,2020GHJD-04);陕西省农业厅农业科技创新驱动计划项目(NYKJ-2022-XA-08)。

摘　　要：通过一步溶剂热法,在泡沫镍衬底(NF)上成功地制备了一种多功能电极材料,即含锆掺杂的镍硫化物(命名为Zr-Ni_(0.96)S/NF).通过调节锆源加入量,以优化样品微观结构和催化活性,结果表明:在锆源加入量为1 mmol时,得到的Zr-Ni_(0.96)S/NF纳米材料展现出均匀的纳米颗粒涂层结构.在1 M KOH溶液中,该材料表现出优异的HER(hydrogen evolution reaction)活性,在10 mA cm^(-2)电流密度下,其析氢过电位仅为95 mV,并且具有超过30小时的良好循环稳定性.当使用Zr-Ni_(0.96)S/NF同时作为阴极和阳极进行全解水时,它能够在1.98 V电压下产生200 mA cm^(-2)的电流密度,并具有15小时以上的循环稳定性,优于当前大多数非贵金属的电催化剂.By using a one-step solvothermal method,a multifunctional electrode material,namely zirconium-doped nickel sulfide(Zr-Ni_(0.96)S/NF),was successfully prepared on a nickel foam substrate(NF).The microstructure and catalytic activity of the samples were optimized by adjusting the amount of zirconium source.The results showed that the obtained Zr-Ni_(0.96)S/NF nanomaterials showed uniform nanoparticle coating when the amount of zirconium source was 1 mmol.In a 1 M KOH solution,the material exhibits excellent HER(hydrogen evolution reaction)activity.At a current density of 10 mA cm^(-2),its hydrogen evolution overpotential is only 95 mV,and it has good cycling stability for over 30 hours.When using Zr-Ni_(0.96)S/NF as both cathode and anode for overall water splitting,it can achieve a current density of 200 mA cm^(-2)at a voltage of 1.98 V and exhibit a cyclic stability of over 15 hours,outperforming most non-precious metal electrocatalysts currently available.

关 键 词：电催化 过渡金属硫化物 元素掺杂 析氢反应 全解水反应 

分 类 号：TB33[一般工业技术—材料科学与工程]