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g-C3N4/CuO and g-C3N4/Co3O4 nanohybrid structures as efficient electrode materials in symmetric supercapacitors

机译:G-C3N4 / CuO和G-C3N4 / CO3O4纳米冬小结构作为对称超级电容器中的有效电极材料

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Metal oxide dispersed graphitic carbon nitride hybrid nanocomposites (g-C _(3) N _(4) /CuO and g-C _(3) N _(4) /Co _(3) O _(4) ) were prepared via a direct precipitation method. The materials were used as an electrode material in symmetric supercapacitors. The g-C _(3) N _(4) /Co _(3) O _(4) electrode based device exhibited a specific capacitance of 201 F g ~(?1) which is substantially higher than those using g-C _(3) N _(4) /CuO (95 F g ~(?1) ) and bare g-C _(3) N _(4) electrodes (72 F g ~(?1) ). At a constant power density of 1 kW kg ~(?1) , the energy density given by g-C _(3) N _(4) /Co _(3) O _(4) and g-C _(3) N _(4) /CuO devices is 27.9 W h kg ~(?1) and 13.2 W h kg ~(?1) respectively. The enhancement of the electrochemical performance in the hybrid material is attributed to the pseudo capacitive nature of the metal oxide nanoparticles incorporated in the g-C _(3) N _(4) matrix.
机译:通过直接沉淀制备金属氧化物分散的石墨氮化物杂交碳氮化物杂交纳米复合材料(GC _(3)N _(4)/ CuO和GC _(3)N _(4)/ CO _(3)o _(4))方法。材料用作对称超级电容器中的电极材料。基于GC _(3)N _(4)/ CO _(3)O _(4)电极的装置表现出201 f G〜(α1)的特定电容,其基本上高于使用GC _(3)的电容n _(4)/ cuo(95 f g〜(α1))和裸gc_(3)n _(4)电极(72 f g〜(Δ1))。在1 kW kg〜(α1)的恒定功率密度下,GC _(3)n _(4)/ co _(3)O _(4)和GC _(3)n _( 4)/ CUO器件分别为27.9WH kg〜(α1)和13.2 W h kg〜(?1)。杂化材料中的电化学性能提高归因于掺入G-C _(3)N _(4)基质中的金属氧化物纳米颗粒的伪电容性质。

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