化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2008年
1期
1-4
,共4页
于凯%冀汝南%楼兰兰%顾志成%刘双喜*
于凱%冀汝南%樓蘭蘭%顧誌成%劉雙喜*
우개%기여남%루란란%고지성%류쌍희*
MCM-48%季铵盐型表面活性剂%孔径调变
MCM-48%季銨鹽型錶麵活性劑%孔徑調變
MCM-48%계안염형표면활성제%공경조변
MCM-48%Alkylammonium salt%Different pore size
采用三种不同碳链长度的季铵盐型表面活性剂CnTAB (n=12,14,16),成功合成了具有不同孔径的MCM-48分子筛.XRD结果表明,所合成的分子筛均具有MCM-48的特征衍射峰,且结晶度良好;N2吸附-脱附实验表明,所得MCM-48的孔径实现了在1.86~2.60 nm之间的调变,且其均有大于1200 m2/g的比表面积.
採用三種不同碳鏈長度的季銨鹽型錶麵活性劑CnTAB (n=12,14,16),成功閤成瞭具有不同孔徑的MCM-48分子篩.XRD結果錶明,所閤成的分子篩均具有MCM-48的特徵衍射峰,且結晶度良好;N2吸附-脫附實驗錶明,所得MCM-48的孔徑實現瞭在1.86~2.60 nm之間的調變,且其均有大于1200 m2/g的比錶麵積.
채용삼충불동탄련장도적계안염형표면활성제CnTAB (n=12,14,16),성공합성료구유불동공경적MCM-48분자사.XRD결과표명,소합성적분자사균구유MCM-48적특정연사봉,차결정도량호;N2흡부-탈부실험표명,소득MCM-48적공경실현료재1.86~2.60 nm지간적조변,차기균유대우1200 m2/g적비표면적.
A series of highly ordered cubic siliceous MCM-48 were synthesized by using the alkylammonium salts CnTAB (n=12, 14, 16) with different alkyl chain lengths as templates. The as-synthesized materials were characterized by XRD and N2 sorption. A typical intense peak for cubic cells and a type IV nitrogen adsorption isotherm were obtained. Moreover, the as-synthesized MCM-48 materials had a large BET surface area (>1200 m2/g) and a narrow pore size distribution (in the range of 1.86~2.60 nm).
