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首页> 外文期刊>Journal of industrial and engineering chemistry >Effects of transition metal oxides on the formation of meso-porous structures in micro-spherical activated carbon for use in electric double layer capacitors
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Effects of transition metal oxides on the formation of meso-porous structures in micro-spherical activated carbon for use in electric double layer capacitors

机译:过渡金属氧化物对用于双电层电容器的微球形活性炭中介孔结构形成的影响

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摘要

The effects of transition metallic oxide catalysts on the formation of meso-porous structures in micro-spherical activated carbon were investigated to improve the material's performance as electrodes in EDLCs. Manganese, nickel and cobalt oxides were used as catalysts. Cobalt oxide strongly aided the formation of meso-porous structures. Despite having similar properties to cobalt, nickel and manganese were unable to achieve comparable meso-porous structures. Increased concentrations of cobalt oxide suppressed the formation of micro-pores and reduced the specific surface area. Pores of radii 25-60 A were promoted and the volume of meso-pores increased. EDLCs employing activated carbon electrodes with meso-porous structures showed little reduction of electrostatic capacitance due to the meso-porous structures but exhibited improved charge transfer resistance and recharge capability.
机译:研究了过渡金属氧化物催化剂对微球状活性炭中介孔结构形成的影响,以改善该材料在EDLC中作为电极的性能。锰,镍和钴的氧化物用作催化剂。氧化钴极大地帮助了介孔结构的形成。尽管具有与钴相似的性质,但镍和锰仍无法获得可比的介孔结构。氧化钴浓度的增加抑制了微孔的形成并降低了比表面积。半径为25-60 A的孔被促进,中孔的体积增加。使用具有介孔结构的活性碳电极的EDLC由于介孔结构而显示出的静电电容几乎没有降低,但显示出改善的电荷转移电阻和充电能力。

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