丝瓜络基3D多级孔结构掺氮活性炭的制备及储能特性

doi:10.11896/cldb.21080011

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Abstract Loofah sponge with three-dimensional bundled micro-structure has unique advantages in the preparation of biomass-based 3D porous carbon materials. Using loofah sponge as raw material and ammonium polyphosphate as activator, morphology protector and nitrogen doping source, the optimal process conditions for the preparation of luffa-based 3D porous carbon materials were established. The results showed that the specific surface area and total pore volume of the CAC-1-550 sample prepared with pre-carbonization treatment were 738 m²/g and 0.43 cm³/g, respectively, which were significantly higher than those of AC-1-550. The electrochemical test results showed that the specific capacitance of CAC-1-550 could reach 260 F/g at 0.5 A/g, and the capacitance retention rate was 116% after 6 000 cycles of charge and discharge. When the power density was 1 674 W/kg, the maximum energy density could reach 37.2 Wh/kg, which was better than that of most carbon electrode materials of supercapacitor widely reported in literatures. When the power density drastically increased to 33.5 kW/kg, the energy density was still up to 9.3 Wh/kg, CAC-1-550 showed appealing electrochemical performance and indicated great potential as an electrode material for supercapacitor applications.

Key words： loofah sponge ammonium polyphosphate 3D hierarchical porous carbon electrode material

Published: 10 March 2023 Online: 2023-03-14

CLC number:

TQ424.1

Fund:National Natural Science Foundation of China (31870561).

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	Articles by authors
	BAI Xiaojie
	SONG Shengnan
	ZHUO Zuyou
	LIU Haixiong
	CHEN Yandan

Cite this article:

BAI Xiaojie,SONG Shengnan,ZHUO Zuyou, et al. Activated Carbon Derived from Loofah Sponge with Three-dimensional Hierarchical Porous Structure and Its Energy Storage Performance[J]. Materials Reports, 2023, 37(5): 21080011-7.

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http://www.mater-rep.com/EN/10.11896/cldb.21080011 OR http://www.mater-rep.com/EN/Y2023/V37/I5/21080011

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