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Carbonaceous aerogel and CoNiAl-LDH@CA nanocomposites derived from biomass for high performance pseudo-supercapacitor 被引量:5
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作者 Sidi Zhang Jian Liu +3 位作者 Peipei Huang Hao Wang Changyan Cao Weiguo Song 《Science Bulletin》 SCIE EI CAS CSCD 2017年第12期841-845,共5页
Conversion of waste biomass to valuable carbonaceous material is a sustainable and environmental benign method for energy and reduction of greenhouse gas emission. Herein, a two-step hydrothermal method was developed ... Conversion of waste biomass to valuable carbonaceous material is a sustainable and environmental benign method for energy and reduction of greenhouse gas emission. Herein, a two-step hydrothermal method was developed to fabricate high performance electrode material from pomelo peels. In the first step, the pomelo peels were transformed to carbonaceous aerogel (CA), which constructed of three- dimensional, sponge-like brown monolith with hierarchical pores, low-density (0.032 g]cm3) and excel- lent mechanical flexibility. Then, the cobalt nickel aluminum layered double hydroxide (CoNiAI-LDH) was in situ loaded on the surface of CA to form exquisite core-shell structure (CoNiAI-LDH@CA) through the second hydrothermal step. When used as an electrode material for supercapacitor, CoNiA1-LDHOCA exhibited high specific capacitances of 1,134F/g at 1A/g and 902Fig at 10A/g, respectively. Furthermore, they displayed an excellent cycling stability without an obvious capacitance decrease after 4,000 cycles. 展开更多
关键词 BiomassCarbonaceous aerogelLayered double hydroxidesupercapacitor
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