New Ti-incorporated MCM-36 as an efficient epoxidation catalyst prepared by pillaring MCM-22 layers with titanosilicate
New Ti-incorporated MCM-36 as an efficient epoxidation catalyst prepared by pillaring MCM-22 layers with titanosilicate
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新型掺钛 MCM-36 作为一种高效环氧化催化剂，通过钛硅酸盐支撑 MCM-22 层制备
DOI：
10.1016/j.jcat.2014.09.009
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发表时间：
2014-11
影响因子：
7.3
通讯作者：
Chen,Soofin
中科院分区：
文献类型：
--
作者：
Chen,Shih-Yuan;Jang,Ling-Yun;Lee,Jyh-Fu;Chen,Soofin
A new Ti-incorporated MCM-36 material (shortly termed Si/Ti-MCM-36) with bimodal pore structures was prepared through sequential steps. The hexadecyltrimethylammonium swollen MCM-22 precursor was pillared with titanosilicate formed via hydrolysis of an interlayer mixture of tetraethylorthosilicate (TEOS) and tetrabutylorthotitanate (TBOT). Hydrolyzation of TEOS and TBOT was a key step for intercalation efficiency. The X-ray diffraction (XRD) patterns and N2sorption isotherm data confirmed the intercalation efficiency and the retention of basal layer MWW structure. A slightly ordered stacking of MWW sheets alongc-direction was observed, generating mesopores of ca. 2 nm in diameter. Ti(IV) was well dispersed in the matrix of titanosilicate pillars, which expand the MWW layers apart. The Ti coordination environment examined by DR UV–Vis and TiK-edge X-ray absorption spectroscopies was mainly in tetrahedral coordination. Post-treatment of the Si/Ti-MCM-36 materials with acid resulted in a new Ti-incorporated MCM-36 with good catalytic activities in cyclohexene epoxidation.
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影响因子：
4.9
作者：
Peng Wu;T. Tatsumi
通讯作者：
Peng Wu;T. Tatsumi
二聚硅烷层间硅烷化制备分级MWW型钛硅酸盐
影响因子：
5.2
作者：
Hao Xu;Liyan Fu;Jin-gang Jiang;Mingyuan He;Peng Wu
通讯作者：
Peng Wu
DOI：
--
发表时间：
1991-08
期刊：
--
影响因子：
--
作者：
Denny A. Jones
通讯作者：
Denny A. Jones
影响因子：
7.3
作者：
Adam, W;Corma, A;Weichold, O
通讯作者：
Weichold, O
影响因子：
5.3
作者：
Roth, Wieslaw J.;Chlubna, Pavla;Vitvarova, Dana
通讯作者：
Vitvarova, Dana