Design and preparation of efficient hydroisomerization catalysts by the formation of stable SAPO-11 molecular sieve nanosheets with 10–20 nm thickness and partially blocked acidic sites

Fen Zhang; Yan Liu; Qi Sun; Zhifeng Dai; Hermann Gies; Qinming Wu; Shuxiang Pan; Chaoqun Bian; Zhijian Tian; Xiangju Meng; Yi Zhang; Xiaodong Zou; Xianfeng Yi; Anmin Zheng; Liang Wang; Feng-Shou Xiao

doi:10.1039/C7CC01519D

Design and preparation of efficient hydroisomerization catalysts by the formation of stable SAPO-11 molecular sieve nanosheets with 10–20 nm thickness and partially blocked acidic sites†

Fen Zhang,^a Yan Liu,^b Qi Sun,^a Zhifeng Dai,^a Hermann Gies,^c Qinming Wu,^a Shuxiang Pan,^a Chaoqun Bian,^a Zhijian Tian,^d Xiangju Meng,*^a Yi Zhang,^e Xiaodong Zou,^e Xianfeng Yi,^f Anmin Zheng,^f Liang Wang^a and Feng-Shou Xiao

*^a

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* Corresponding authors

^a Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
E-mail: mengxj@zju.edu.cn, fsxiao@zju.edu.cn

^b Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China

^c Institute of Geology, Mineralogy and Geophysics, Ruhr-University Bochum, 44780 Bochum, Germany

^d State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

^e Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden

^f State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

Abstract

SAPO-11 nanosheets with partially filled micropores (N-SAPO-11) and a thickness of 10–20 nm were synthesized using polyhexamethylene biguanide hydrochloride (PHMB) as a mesoporogen and di-n-propylamine (DPA) as a microporous template. After Pt loading (0.5 wt%), the Pt/N-SAPO-11 catalyst exhibits higher selectivity for the isomers and lower selectivity for cracking products than conventional Pt/SAPO-11 catalysts in the hydroisomerization of n-dodecane.

Chemical Communications

Design and preparation of efficient hydroisomerization catalysts by the formation of stable SAPO-11 molecular sieve nanosheets with 10–20 nm thickness and partially blocked acidic sites†

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Design and preparation of efficient hydroisomerization catalysts by the formation of stable SAPO-11 molecular sieve nanosheets with 10–20 nm thickness and partially blocked acidic sites

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