钙钛矿 SrCo0.9 Nb0.1 O3-δ 作为超级电容器的阴离子插层电极材料，具有超高体积能量密度。
Perovskite SrCo0.9 Nb0.1 O3-δ as an Anion-Intercalated Electrode Material for Supercapacitors with Ultrahigh Volumetric Energy Density.
机构信息
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China.
Department of Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia.
出版信息
Angew Chem Int Ed Engl. 2016 Aug 8;55(33):9576-9. doi: 10.1002/anie.201603601. Epub 2016 Jul 1.
We have synthesized and characterized perovskite-type SrCo0.9 Nb0.1 O3-δ (SCN) as a novel anion-intercalated electrode material for supercapacitors in an aqueous KOH electrolyte, demonstrating a very high volumetric capacitance of about 2034.6 F cm(-3) (and gravimetric capacitance of ca. 773.6 F g(-1) ) at a current density of 0.5 A g(-1) while maintaining excellent cycling stability with a capacity retention of 95.7 % after 3000 cycles. When coupled with an activated carbon (AC) electrode, the SCN/AC asymmetric supercapacitor delivered a specific energy density as high as 37.6 Wh kg(-1) with robust long-term stability.
我们合成并表征了钙钛矿型 SrCo0.9 Nb0.1 O3-δ（SCN）作为一种新型的阴离子插层电极材料，用于在水性 KOH 电解质中超级电容器，在电流密度为 0.5 A/g 时表现出非常高的体积电容，约为 2034.6 F/cm3（和约 773.6 F/g 的重量电容），同时具有出色的循环稳定性，在 3000 次循环后容量保持率为 95.7%。当与活性炭（AC）电极结合时，SCN/AC 非对称超级电容器的能量密度高达 37.6 Wh/kg，具有强大的长期稳定性。
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