摘要
A SiO2@PPy core/shell structure was synthesized by performing the polymerization of pyrrole monomers around SiO2 spheres.For the first time,the SiC hollow spheres with a high surface area was prepared from the SiO2@PPy with a core/shell structure by using a carbothermal reduction reaction technique.The preparation process and the structures of the products were characterized with XRD,TEM,SEM,N2 adsorption-desorption isotherms and XPS.The results indicate that β-SiC hollow spheres with a specific surface area of 101.3 m2/g could be prepared from the SiO2@PPy with a core/shell structure.
A SiO2@PPy core/shell structure was synthesized by performing the polymerization of pyrrole monomers around SiO2 spheres. For the first time, the SiC hollow spheres with a high surface area was prepared from the SiO2@PPy with a core/shell structure by using a carbothermal reduction reaction technique. The preparation process and the structures of the products were characterized with XRD, TEM, SEM, N2 adsorption-desorption isotherms and XPS. The results indicate that β-SiC hollow spheres with a specific surface area of 101.3 m^2/g could be prepared from the SiO2@PPy with a core/shell structure.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第1期23-25,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20341002)
上海市纳米专项基金(批准号:0352nm101)资助
关键词
核壳结构
SIC
空心球
碳热还原反应
Core/shell structure
SiC
Hollow spheres
Carbothermal reduction reaction
