DICP OpenIR
Cost-effective synthesis of CHA zeolites with controllable morphology and size
Guo, Ya1,2; Sun, Tianjun1; Liu, Xiaowei1,2; Ke, Quanli1,2; Wei, Xiaoli1,2; Gu, Yiming1,2; Wang, Shudong1
Corresponding AuthorSun, Tianjun(suntianjun@dicp.ac.cn) ; Wang, Shudong(wangsd@dicp.ac.cn)
KeywordCO2/CH4 adsorption separation Zeolite Dual template Morphology Size
Source PublicationCHEMICAL ENGINEERING JOURNAL
2019-02-15
ISSN1385-8947
DOI10.1016/j.cej.2018.10.007
Volume358Pages:331-339
Funding ProjectNational Natural Science Foundation of China[21776266] ; National Natural Science Foundation of China[21476231]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS Research AreaEngineering
WOS KeywordSELECTIVE CATALYTIC-REDUCTION ; DENSITY MISMATCH SYNTHESIS ; STRUCTURE DIRECTING AGENTS ; SAPO-34 MOLECULAR-SIEVES ; HYDROTHERMAL SYNTHESIS ; CRYSTAL MORPHOLOGY ; IMPROVED STABILITY ; OLEFINS REACTION ; FRAMEWORK TYPES ; SSZ-13 ZEOLITE
AbstractCost-effectively develop zeolites with controllable morphology and size is significant in design and optimization of the physical properties for CO2 /CH4 adsorption separation. Herein, we report the synthesis of CHA zeolites with tunable morphology and size by a facile one-step dual template-directed strategy. A mixture of organic structure-directing agents (OSDA) composed of N,N,N-trimethyl-1-adamantammonium hydroxide (TMAdaOH) and tetramethylammonium hydroxide (TMAOH) was employed and found to function cooperatively in directing the crystallization of CHA zeolites. Additionally, the dual template strategy reduced the consumption of expensive TMAdaOH to a great extent. The crystal morphology and size were remarkably dependent on TMAOH concentration in the dual template-directed synthesis system, regardless of TMAdaOH concentration. We demonstrate that the gradual decrease of TMAOH concentration in the batch composition enables a fine-tuning of the zeolite morphology from cubic to rough sphere crystals, accompanied by the size ranging from ca. 3 mu m to 400 nm. We speculate that the two organic species work synergistically in the formation of CHA crystals, where TMAdaOH is the microporous structure director, and TMAOH plays a role in bridging neighboring particles via electrostatic interactions. The variation of crystal size is confirmed to have considerable influence on CO2/CH4 separation performances. Moreover, the ability to tailor the physical properties of CHA zeolite by dual template method makes it possible to optimize the performances in other commercial applications.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000450105700032
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166695
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun, Tianjun; Wang, Shudong
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guo, Ya,Sun, Tianjun,Liu, Xiaowei,et al. Cost-effective synthesis of CHA zeolites with controllable morphology and size[J]. CHEMICAL ENGINEERING JOURNAL,2019,358:331-339.
APA Guo, Ya.,Sun, Tianjun.,Liu, Xiaowei.,Ke, Quanli.,Wei, Xiaoli.,...&Wang, Shudong.(2019).Cost-effective synthesis of CHA zeolites with controllable morphology and size.CHEMICAL ENGINEERING JOURNAL,358,331-339.
MLA Guo, Ya,et al."Cost-effective synthesis of CHA zeolites with controllable morphology and size".CHEMICAL ENGINEERING JOURNAL 358(2019):331-339.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Guo, Ya]'s Articles
[Sun, Tianjun]'s Articles
[Liu, Xiaowei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guo, Ya]'s Articles
[Sun, Tianjun]'s Articles
[Liu, Xiaowei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guo, Ya]'s Articles
[Sun, Tianjun]'s Articles
[Liu, Xiaowei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.