摘要
炭气凝胶电极的电化学测试表明,炭气凝胶具有性能稳定、充放电效率高、适合于大电流充放电等优良性能.炭气凝胶储电的影响因素主要来自于比表面积、孔容和孔结构分布的综合作用.孔容较大,平均孔径较宽时,储电能力较大,且大孔容对电极材料储电是相当有利的.在高比表面积活性炭中添加不同比例的炭气凝胶,可以提高电极的比电容,炭气凝胶含量为15％时,电极比电容最高.
The electrochemical measurement of carbon aerogel electrods show that carbon aerogels exhibit excellent properties of high efficiency, good electrochemical behavior as electrode materials. Both surface area and pore volume of carbon aerogels determine their specific capacitance. High pore volume and wide pore distribution contribute to increasing the capacitance. Activated carbon mixed with different ratio of carbon aerogels increases the capacitance of the electrode, while the capacitance is the highest when the content of carbon aerogels in the composites is 15 percent.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第3期593-598,共6页
Journal of Inorganic Materials
基金
北京化工大学青年教师基金(QN0249)
国家自然科学基金(50272070)
关键词
炭气凝胶
超级电容器
活性炭
carbon aerogels
supercapacitor
activated carbon
