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Zn-Co bimetallic supported ZSM-5 catalyst for phosgene-free synthesis of hexamethylene-1,6-diisocyanate by thermal decomposition of hexamethylene-1,6-dicarbamate
Ammar, Muhammad1,2; Cao, Yan1; He, Peng1; Wang, Li-Guo1; Chen, Jia-Qiang1; Li, Hui-Quan1
2017-07-01
Source PublicationCHINESE CHEMICAL LETTERS
ISSN1001-8417
Volume28Issue:7Pages:1583-1589
Abstract

A set of mono- and bimetallic (Zn-Co) supported ZSM-5 catalysts was first prepared by PEG-additive method. The physicochemical properties of the catalysts were investigated by FTIR, XPS, XRD, N2 adsorption-desorption measurements, SEM, EDS and NH3-TPD techniques. The physicochemical properties showed that the ZnCo2O4 spinet oxide was formed on the ZSM-5 support and provided effectual synergetic effect between Zn and Co species for the bimetallic catalyst. Furthermore, bimetallic supported ZSM-5 catalyst exhibited weak, moderate and strong acidic sites, while the monometallic supported ZSM-5 catalyst showed only weak and moderate or strong acidic sites. Their catalytic performances for thermal decomposition of hexamethylene-1,6-dicarbamate (HDC) to hexamethylene1,6-diisocyanate (HDI) were then studied. It was found that the bimetallic supported ZSM-5 catalysts, especially Zn-2Co/ZSM-5 catalyst showed excellent catalytic performance due to the good synergetic effect between Co and Zn species, which provided a suitable contribution of acidic sites. HDC conversion of 100% with HDI selectivity of 91.2% and by-products selectivity of 1.3% could be achieved within short reaction time of 2.5 h over Zn-2Co/ZSM-5 catalyst. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

KeywordHexamethylene-1 Thermal Decomposition 6 Dicarbamate (Hdc) Hexamethylene-1 Bimetallic Supported Zsm-5 Catalyst 6 Diisocyanate (Hdi) Synergetic Effect
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.cclet.2017.03.015
Indexed BySCI
Language英语
WOS KeywordLIGHT OLEFINS ; DIMETHYLHEXANE-1,6-DICARBAMATE ; POLYURETHANE ; OXIDATION ; ZEOLITES ; METHANOL ; PROPANE
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(21476244 ; Youth Innovation Promotion Association CAS ; 21406245)
WOS IDWOS:000406726500040
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23162
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ammar, Muhammad,Cao, Yan,He, Peng,et al. Zn-Co bimetallic supported ZSM-5 catalyst for phosgene-free synthesis of hexamethylene-1,6-diisocyanate by thermal decomposition of hexamethylene-1,6-dicarbamate[J]. CHINESE CHEMICAL LETTERS,2017,28(7):1583-1589.
APA Ammar, Muhammad,Cao, Yan,He, Peng,Wang, Li-Guo,Chen, Jia-Qiang,&Li, Hui-Quan.(2017).Zn-Co bimetallic supported ZSM-5 catalyst for phosgene-free synthesis of hexamethylene-1,6-diisocyanate by thermal decomposition of hexamethylene-1,6-dicarbamate.CHINESE CHEMICAL LETTERS,28(7),1583-1589.
MLA Ammar, Muhammad,et al."Zn-Co bimetallic supported ZSM-5 catalyst for phosgene-free synthesis of hexamethylene-1,6-diisocyanate by thermal decomposition of hexamethylene-1,6-dicarbamate".CHINESE CHEMICAL LETTERS 28.7(2017):1583-1589.
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