Optimized Synthesis of Carbon Aerogels via Ambient Pressure Drying Process as Electrode for Supercapacitors

武汉理工大学学报-材料科学版(英文版), 2015, (6): 1325-1331. doi: 10.1007/s11595-015-1316-1

YUAN Lei ^1, , CHANG Lijuan ^2, , FU Zhibing ^3, , YANG Xi ^4, , JIAO Xingli ^5, , TANG Yongjian ^6, , LIU Xichuan ^7, , WANG Chaoyang ^8,

1.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

2.Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

3.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

4.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

5.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

6.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

7.College of Material Science and Engineering, Xihua University, Chengdu 610039, China

8.Science and Technology on Plasma Physics Laboratory, Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

基金项目: China Academy of Engineering Physics, Mianyang, China the National High Technology Research and Development Program (863 Program)(2013AA050905)

Optimized Synthesis of Carbon Aerogels via Ambient Pressure Drying Process as Electrode for Supercapacitors

Keywords： supercapacitors

Carbon aerogels were synthesized via ambient pressure drying process using resorcinol-formaldehyde as precursor and P123 to strengthen their skeletons. CO2 activation technology was implemented to improve surface areas and adjust pore size distribution. The synthesis process was optimized, and the morphology, structure, adsorption properties and electrochemical behavior of different samples were characterized. The CO2-activated samples achieved a high specific capacitance of 129.2 F/g in 6 M KOH electrolytes at the current density of 1 mA/cm2 within the voltage range of 0-0.8 V. The optimized activation temperature and duration were determined to be 950℃and 4 h, respectively.

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Optimized Synthesis of Carbon Aerogels via Ambient Pressure Drying Process as Electrode for Supercapacitors

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