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首页> 外文期刊>International Journal of Electrochemical Science >Incorporation of MnO2 into Egg Yolk Derived P, N, O-Tridoped Carbon for Supercapacitors with Excellent Cycling Stability
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Incorporation of MnO2 into Egg Yolk Derived P, N, O-Tridoped Carbon for Supercapacitors with Excellent Cycling Stability

机译：将MnO 2 掺入蛋黄派生的P，N，O三掺杂碳中，从而获得具有出色循环稳定性的超级电容器

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The design of novel electrode materials is still challenging in the development of high-performancesupercapacitors. To tackle such difficulties, a potentially feasible strategy is recently emerged via theincorporation of pseudocapacitive transition metals into biomass-derived carbon electrodes, in whichpseudo-capacity mainly derived from transition metals is efficiently stabilized by the heteroatom dopedcarbon hosts. In this work, a MnO 2 -decorated P, N, O-tridoped porous carbon electrode has beendeveloped via a simple hydrothermal reaction by mixing KMnO 4 with biomass egg yolk under mildconditions. The as-obtained MnPNC (MnO 2 decorated P, N, O-tridoped Porous Carbon) is composed ofMnO 2 nanosheets wrapped by porous carbon, exhibiting a high specific capacitance of 341 F/g at acurrent density of 1 A/g in 6 M KOH and an outstanding long-term cycling stability of 15000 cycles.These results indicate that the carbon protecting layer is able to promote the stability of MnO 2 duringcharging/discharging processes.
机译：新型电极材料的设计在高性能超级电容器的开发中仍然具有挑战性。为了解决这些困难，近来通过将假电容过渡金属掺入生物质衍生的碳电极中出现了一种潜在可行的策略，其中主要来自过渡金属的假电容被杂原子掺杂的碳主体有效地稳定。在这项工作中，通过在温和的条件下将KMnO 4与生物质蛋黄混合，通过简单的水热反应开发了装饰有MnO 2的P，N，O三掺杂的多孔碳电极。所获得的MnPNC（由MnO 2装饰的P，N，O三掺杂的多孔碳）由包裹有多孔碳的MnO 2纳米片组成，在1 M / g的电流密度下，在6 M中具有341 F / g的高比电容。 KOH和出色的15000次循环长期循环稳定性。这些结果表明，碳保护层能够在充电/放电过程中提高MnO 2的稳定性。

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