无机材料学报2012，Vol.27Issue(12)：1261-1265,5.DOI:10.3724/SP.J.1077.2012.12110
模板法制备介孔VN纳米电极材料及其电容性能
Template Synthesis of Mesoporous Nanocrystalline VN Electrode Materials and Its Supercapacitive Behavior
摘要
Abstract
Using hexadecyl trimethyl ammonium bromide (CTAB) as the template, mesoporous VN nanocrystalline was synthesized by NH3 reduction of precursor V2O5. The structure and surface morphology of mesoporous VN were characterized by XRD and TEM. Specific area and pore size distribution were studied by N2 absorption. The XRD result indicated that VN nanocrystalline belonged to the cubic crystal system. VN nanoparticles were in dimension of about 10 nm. N2 absorption result indicated that the surface area of VN sample was 88 m2/g, and most pores were distributed in the range of 2-6 nm. The supercapacitive behavior of VN electrode in 1 mol/L KOH electrolyte was studied by cyclic voltammetry (CV) and constant current charge-discharge measurements. The results showed that mesoporous VN electrode had both electrical double-layer capacitive properties and redox pseudoca-pacitive properties. The specific capacitance was of VN electrode 517 F/g at 1 mV/s scan rate, when the scan rate was up to 10 mV/s, its specific capacitance maintained 275 F/g.关键词
电化学电容器/介孔材料/VN纳米晶/比表面积/比电容Key words
electrochemical capacitor/ mesoporous materials/ VN nanocrystalline/ specific surface area/ specific capacitance分类
信息技术与安全科学引用本文复制引用
高兆辉,张浩,曹高萍,韩敏芳,杨裕生..模板法制备介孔VN纳米电极材料及其电容性能[J].无机材料学报,2012,27(12):1261-1265,5.基金项目
国家自然科学基金(50902149) （50902149）
