强激光与粒子束, 2005, 17 (11): 1709, 网络出版: 2021-01-26
对苯二酚-甲醛碳气凝胶的制备
Preparation method of hydroquinone-formaldehyde carbon aerogels
对苯二酚 碳气凝胶 溶胶-凝胶法 孔径分布 纳米网孔材料 Hydroquinone Carbon aerogel Sol-gel method Distribution of pore diameter Nano-porous materials
摘要
溶胶-凝胶法制备了高HC比(10~40,对苯二酚与催化剂(Na2CO3)的物质的量之比)的对苯二酚-甲醛有机气凝胶,并经高温碳化处理得到其碳气凝胶.借助有机气凝胶的红外光谱研究了其化学结构,说明其网孔结构形成的可能性;研究了有机气凝胶的扫描电镜图像、比表面积及孔径分布等,并得到碳化前后的一些对比数据:有机气凝胶颗粒大小30~50 nm,碳化后约为10 nm,比表面积从341.77 m2/g增大到452.75 m2/g,密度从0.170 8 g/cm3增大到0.335 6 g/cm3.
Abstract
Hydroquinone-formaldehyde organic aerogels with high HC ratio(10~40,molar ratio of hydroquinone to catalyst) have been prepared using sol-gel process.And carbon aerogels have been prepared by pyrolyzing the aerogels.In addition,the ingredients have been tested by the IR spectra which show the probability of the nano-porous structure.SEM pictures,specific surface areas and distribution of pore diameter have been tested to study the nano-porous structures in surface and some data beforeand after the pyrolyzing process have been gained:the size of the organic aerogel is 30~50nm,that of the carbon aerogel is about 10nm,the specific surface area increases from 341.77 m2/g to 452.75 m2/g,the density increases from 0.170 8 g/cm3 to 0.335 6 g/cm3 respectively.
王金凤, 王朝阳, 唐永建, 高涛, 刘伟民. 对苯二酚-甲醛碳气凝胶的制备[J]. 强激光与粒子束, 2005, 17(11): 1709. WANG Jin-feng, WANG Chao-yang, TANG Yong-jian, GAO Tao, LIU Wei-min. Preparation method of hydroquinone-formaldehyde carbon aerogels[J]. High Power Laser and Particle Beams, 2005, 17(11): 1709.