个人信息
教师姓名：尹良君
教师拼音名称：yinliangjun
电子邮箱：ljyin@uestc.edu.cn
所在单位：电子科学与工程学院
学历：博士研究生毕业
办公地点：国家电磁辐射控制材料工程技术研究中心 C318B
性别：男
学位：工学博士学位
职称：教授
在职信息：在职人员
毕业院校：中国科技大学
硕士生导师
曾获荣誉：省部级人才计划
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所属院系： 电子科学与工程学院（示范性微电子学院）
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学科：电子信息材料与元器件
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论文成果
Porous TiN-based ceramic electrode with N-modified Co-based Nanorods/ TiN heterointerfaces for efficient overall water splitting
发布时间：2025-05-23 点击次数：
所属单位：[1]Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China;[2]Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China;[3]Univ Elect Sci & Technol China, Sch Energy Sci & Engn, 2006 Xiyuan Rd, Chengdu 611731, Sichuan, Peoples R China;[4]Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China;[5]Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Anhui, Peoples R China;[6]Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece
发表刊物：JOURNAL OF POWER SOURCES
关键字：Overall water splitting; Heterointerface; Ceramic electrode; Porous ceramic membrane; Nanorod catalyst
摘要：The development of high-performance electrocatalytic electrodes for overall water splitting is a crucial issue to realize renewable hydrogen production. This paper presents the in situ growth of N-modified Co-based nanorods on porous TiN ceramic membranes using the hydrothermal method and thermal NH3 3 treatment, resulting in a novel self-supported electrocatalytic electrode with abundant heterointerfaces, denoted as NCTN-x-y (x: nitridation temperature; y: nitridation time). In the alkaline medium (1 M KOH), the NCTN-350-2 electrode displays the best hydrogen evolution reaction (HER) activity (r10 10 = 66 mV), and the NCTN-250-3 electrode manifests the best oxygen evolution reaction (OER) performance (r10 10 = 270 mV). Accordingly, these two electrodes comprise an electrolyzer, which features a current density of 10 mA cm-- 2 at a low cell voltage of 1.63 V. The good electrocatalytic performance can be attributed to the abundant heterointerfaces formed between the porous TiN ceramic membrane and the N-modified Co-based nanorods, in conjunction with the hierarchical pore structure of the TiN ceramic membrane. Theoretical calculations identify that the construction of heterointerfaces modulates the electronic structure of active sites, thereby promoting the dissociation of H2O, 2 O, optimizing the H* adsorption energy (Delta GH*), Delta G H* ), and accelerating the reaction kinetics, which ultimately improve the electrocatalytic activity of electrode.
文献类型：Article
卷号：610
ISSN号：0378-7753
是否译文：否
