摘要
Cu-ZSM-5 type molecular sieves were synthesized hydrothermally in weak acid medium in the presence of F- ions. The structures of these samples were investigated.Increasing the amount of copper in synthesized samples the unit cell volumes of Cu-ZSM-5 zeolites increase, while the adsorption peaks of Cu-ZSM-5 shift to lower wavenumbers.These facts and the results of the electron probe micrograph and XPS analyese indicate that copper was introduced into the framework of molecular sieve.
Cu-ZSM-5 type molecular sieves were synthesized hydrothermally in weak acid medium in the presence of F- ions. The structures of these samples were investigated.Increasing the amount of copper in synthesized samples the unit cell volumes of Cu-ZSM-5 zeolites increase, while the adsorption peaks of Cu-ZSM-5 shift to lower wavenumbers.These facts and the results of the electron probe micrograph and XPS analyese indicate that copper was introduced into the framework of molecular sieve.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1994年第7期635-638,共4页
Acta Physico-Chimica Sinica
基金
国家自然科学基金
吉林大学无机水热合成研究开放实验室资助
