以溶胶-凝胶法制备La1-xSrxCoO3(x = 0.2, 0.4, 0.6, 0.8)电极材料，XRD表征证明所得产物属钙钛矿相. 由循环伏安和充放电曲线测试了La1-xSrxCoO3在碱性介质中的电化学电容性能. 结果表明，La0.6Sr0.4CoO3电极10 mA.cm-2电流密度的放电比电容为325 F.g-1，500周期循环后其比电容仍保持于315 F.g-1，比电容保持率97.0%.
徐暘
,
包彦彦
,
杜龙飞
,
曹殿学
,
王贵领
. 钙钛矿La1-xSrxCoO3的电化学电容性能[J]. 电化学, 2013
, 19(2)
: 174
-177
.
DOI: 10.61558/2993-074X.2110
In this paper, the La1-xSrxCoO3 (x = 0.2, 0.4, 0.6, 0.8) perovskites powders were synthesized by a sol-gel method. The perovskite phases were characterized by X-ray diffraction (XRD), while the electrochemical capacitance performance of La1-xSrxCoO3 electrodes in alkaline electrolyte was studied by cyclic voltammetry and galvanostatic charge/discharge test. It was found that the La0.6Sr0.4CoO3 electrode exhibited a specific capacitance of 325 F.g-1 in 6.0 mol.L-1 KOH electrolyte at a current density of 10 mA.cm-2, and the specific capacitance of 315 F.g-1 could be maintained after 500 charge/discharge cycles which corresponds to the retention rate of 97%.
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