过电位
锡
电催化剂
线性扫描伏安法
塔菲尔方程
纳米复合材料
材料科学
循环伏安法
介电谱
化学工程
析氧
分解水
介孔材料
制氢
电化学
纳米技术
化学
催化作用
冶金
电极
有机化学
物理化学
工程类
光催化
作者
Asma A. Alothman,Syed Imran Abbas Shah,Abdul Ghafoor Abid,Mehar Un Nisa,Nasreen Bibi,Karam Jabbour,Muhammad Imran Anwar,Muhammad Fahad Ehsan,Sumaira Manzoor
标识
DOI:10.1002/slct.202303619
摘要
Abstract Electrochemical water splitting is one of the promising approaches for the production of molecular hydrogen as well as to meet the clean and sustainable energy demand of the modern world. However, the key task for the research communities is to design a cost‐effective and efficient electrocatalyst to contribute positively to recent world crises. This study presents a novel SiO 2 @TiN nanocomposite and utilize it for oxygen evolution reaction (OER) as an electrocatalysts. The different techniques use for the characterization of SiO 2 @TiN nanocomposite. The electrochemical investigations encompass linear sweep voltammetry (LSV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) which collectively yield critical parameters for assessing electrocatalytic performance. At a current density of 10 mAcm −2 the SiO 2 @TiN nanocomposite has a substantially lower overpotential of 256 mV compared to pure SiO 2 and TiN. The composite also shows smaller tafel slope of 40 mV dec −1 as well as lower overpotential. The SiO 2 @TiN nanocomposite also demonstrates the enhanced redox activity as a result of its synergistic effect. Consequently, the increased electrical conductivity of TiN facilitates the attachment of metal oxides and more active sites are exposed to improve the OER activity of the fabricated materials.
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