摘要
采用 微波辐 射技术合 成了 M C M41 介孔分 子筛,并 用 X R D , S E M , I R, N M R 和吸 附等表征手段考 察了其 晶化过程 、晶体 形 貌和 稳定 性 等特 点. 结 果表 明, 微波 法合 成 M C M41 分 子 筛时诱导期 极短,晶 化速度很 快且在晶 化后期 无转晶现 象; 微 波法 合成 的 M C M41 试样 的吸 附容 量较低,但 具有较强 的耐热及 水热稳 定性和抗 酸碱能
MCM 41 mesoporous molecular sieve was synthesized by microwave radiation method. The crystallization, crystalline morphology and stability of MCM 41 were investigated by means of XRD, SEM, IR, NMR and adsorption technique. The results showed that the induction period is very short, the crystallization rate is very high, and there is no crystalline conversion during the crystallization process. It was also found that MCM 41 synthesized in microwave condition had lower adsorption capacity but better ability for resisting heat, hydrothermal, acid and base treatment.
出处
《催化学报》
SCIE
CAS
CSCD
北大核心
1999年第3期251-255,共5页
关键词
MCM-41
分子筛
微波法
合成
介孔分子筛
MCM 41 molecular sieve, microwave synthesis, crystallization, stability