文献类型： 外文期刊
作者： Chen, Ling 1 ; Deng, Junqian 1 ; Yuan, Yang 1 ; Hong, Shu 1 ; Yan, Bing 1 ; He, Shuijian 1 ; Lian, Hailan 1 ;
作者机构： 1.Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China
3.Fast Growing Tree & Agrofibre Mat Engn Ctr, Nanjing 210037, Peoples R China
4.Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China
关键词： Resorcinol-formaldehyde resin; Deep eutectic solvent; Carbon xerogel; Hierarchical porous carbon; Catalytic graphitization
期刊名称：DIAMOND AND RELATED MATERIALS （ 影响因子：3.806； 五年影响因子：3.429 ）
ISSN： 0925-9635
年卷期： 2022 年 121 卷
页码：
收录情况： SCI
摘要： A facile and supercritical drying-free synthesis strategy is developed for rapid preparation of resorcinol formaldehyde resin organic xerogel. An iron-based deep eutectic solvent is applied as both reaction medium and catalyst for the polymerization of resorcinol with formaldehyde. The coordination effect of Fe3+ greatly short the gelation time. Hierarchical porous carbon xerogel with both amorphous and graphitic regions is obtained via pyrolysis as prepared organic xerogel. By selectively etching the amorphous carbon domains of the product through a simple air etching treatment at 400 degrees C, a porous graphitized carbon xerogel is achieved. The carbon xerogel possesses a high specific surface area of 587 m(2) g(-1) and abundant surface oxygen functional groups. Consequently, the O-RFCX-700 sample delivers a specific capacitance of 209 F g(-1) at a current density of 0.5 A g(-1) and exhibits excellent rate performance (131 F g(-1) at 10 A g(-1)) as well as cycling stability in a three electrode configuration in 1 M KOH electrolyte. The present work paves a new way for rapid preparation of resorcinol-formaldehyde resin (xero)gel and extends their applications in energy storage devices.
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