Synthesis of boron- free titanosilicate zeolite by TiCl4/HCl treatment of pure silicon MWW as an epoxidation catalyst - Details

author：

Ge, Zhijin (Ge, Zhijin.) ^[1] | Li, Xin'ao (Li, Xin'ao.) ^[2] | Hu, Hui (Hu, Hui.) ^[3] | Huang, Qingming (Huang, Qingming.) ^[4] | Chen, Xiaohui (Chen, Xiaohui.) ^[5]

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Abstract：

The　pure　silicon　MWW　were　synthesized　for　the　first　time　by　means　of　a　dry-gel　conversion　method　utilizing　N,　N,　N-trimethyl-1-adamantyl　ammonium　hydroxide　and　hexamethyleneimine　as　the　structural　directing　agents.　A　vapor　transport　assisted　crystallization　method　for　obtaining　complete　crystallinity　was　developed　to　replace　the　traditional　dry-gel　conversion　methods.　TiCl4　acid　solution　treatment　was　cleverly　used　for　the　implantation　of　titanium　in　MWW.　Compared　with　Ti-ERB-1,　the　Ti　content　of　boron-　free　Ti-MWW　is　only　20%　of　the　former,　the　conversion　rate　of　1-hexene　epoxidation　is　2.3　times　of　the　former　and　nearly　100%　of　H2O2　efficiency.　©　2023　Elsevier　Inc.

Keyword：

Ammonium hydroxide Chlorine compounds Crystallinity Silicon Synthesis (chemical) Titanium compounds Zeolites

Community：

[ 1 ] [Ge, Zhijin]School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 2 ] [Ge, Zhijin]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350002, China
[ 3 ] [Li, Xin'ao]School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 4 ] [Li, Xin'ao]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350002, China
[ 5 ] [Hu, Hui]School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 6 ] [Huang, Qingming]Test Center of Fuzhou University, Fuzhou University, Fujian, Fuzhou, China
[ 7 ] [Chen, Xiaohui]School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 8 ] [Chen, Xiaohui]National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University, Fujian, Fuzhou; 350002, China

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Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2023

Volume： 428

6 . 5

JCR@2023

6 . 5 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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