A novel synthesis of V10O24·10H2O nanoribbons and their capacitive properties in aqueous electrolytes

• Published in: Journal of alloys and compounds Vol. 666; pp. 227 - 231
• Main Authors: Zhang, Lining, Zou, Huijun, Kang, Ling, Wen, Fengyu, Chen, Lianmei, Chen, Yanxia, Luo, Ying
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.05.2016
• Subjects: Aqueous electrolytes; Capacitive properties; Glucose; Synthetic route; V10O24·10H2O nanoribbons; V2O5; Aqueous electrolytes; V10O24·10H2O nanoribbons; Capacitive properties; Glucose; Synthetic route; V2O5
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2016.01.071

V10O24·10H2O nanoribbons were synthesized by a simple, rapid and high-yield route with starting from cheap V2O5 and glucose, and their capacitive properties were firstly investigated. The as-prepared samples were characterized by XRD, XPS, TG and SEM. The effect of various factors (such as aqueous electrolyte, working voltage and current density) on the capacitive behavior of V10O24·10H2O electrode was analyzed by cyclic voltammetry and galvanostatic charge/discharge test. The best capacitive properties were achieved in 1 M KNO3 solution at the working voltage of −0.3 to 0.7 V. The highest initial specific capacitance was 177.5 F g−1 at the current density of 200 mA g−1. The capacity retention was 93.2% or 85.3% after 1000 or 2000 cycles. Furthermore, the cyclic stability of V10O24·10H2O was excellent at the high current density of 800 mA g−1. [Display omitted] •V10O24·10H2O nanoribbons were synthesized by a simple, rapid and high-yield route.•Capacitive behavior of V10O24·10H2O electrode was firstly investigated.•The effect of three factors on capacitive behavior was discussed.•The V10O24·10H2O electrode exhibited a good capacitive behavior in KNO3 solution.