欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用酸化水解沉钒工艺制备超级电容器钒青铜材料，通过循环伏安法和恒电流充放电测试，分析酸化产物在1mol／LNaNO3溶液中的超电容性能，考察了Na3VO4浓度、掺杂阳离子种类及掺杂量等对酸化产物超电容性能的影响．结果表明，在1A／g电流密度下，Na3VO4浓度为0．1mol／L时钠钒青铜初始电容最优，为120F／g．加入0．25mol／LCa2＋，所制Ca0.59Na0.83V6O16初始电容可提高到168F／g，循环100次后保持率为80％，电化学性能优于V2O5及钠钒青铜．掺杂一定量Ca2＋可显著提高酸化产物的超电容稳定性和电容量．
英文摘要：
Vanadium bronze was prepared by traditional acidification process with sodium vanadate as precursor, and its electrochemical capacitance quantitatively measured by cyclic voltammetry and galvanostatic charge-discharge methods in 1 mol/L NaNO3 solution. The effects of the precursor concentration, doping cation species and amount of doping cation on the performance of vanadium bronze were examined. Electrochemical investigation reveals that the product contains the optimal capacitance of 120 F/g when the concentration of Na3VO4 is 0.1 mol/L. The sample doped with 0.25 mol/L Ca2＋ exhibits improved capacitance of 168 F/g in the initial circle and maintains 131 F/g capacitance after 100 circles. Its electrochemical properties are better than V2O5 and Na-doped vanadium oxide.
同期刊论文项目
同项目期刊论文
A Novel Method to Extract Vanadium and Chromium from Vanadium Slag using Molten NaOH-NaNO3 Binary Sy
A novel method of leaching vanadium from extracted vanadium residue using sodium sub-molten salt med
Indirect Electrochemical Cr(III) Oxidation in KOH Solutions at an Au Electrode: The Role of Oxygen R
Polyethylenimine-functionalized poly(vinyl alcohol) magnetic microspheres as a novel adsorbent for r
Adsorptive recovery of vanadium(V) from chromium(VI)-containing effluent by Zr(IV)-loaded orange jui
High capacity adsorption of Cr(VI) from aqueous solution using polyethylenimine-functionalized poly(
Zhang Yi. Research and prospect on extraction of vanadium from vanadium slag by liquid oxidation tec
Effective Chromium Extraction from Chromium-containing Vanadium Slag by Sodium Roasting and Water Le
Synthesis of polyethylenimine-functionalized poly(glycidyl methacrylate) magnetic microspheres and t
Crystallization and Separation of Potassium Vanadate in Highly Concentrated Potassium Hydroxide Solu
期刊信息
位置：