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On the preparation of a monoclinic (nearly) single crystal of zeolite HZSM-5
Affiliation:1. Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China;2. School of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, PR China;3. Advanced Research Institute for Multidisciplinary Science, Qilu University of Technology, Jinan, 250353, Shandong Province, PR China;1. School of Materials Science and Engineering, Zhengzhou University, 450001 Zhengzhou, Henan Province, PR China;2. Lab. of Electret & Its Application, Hangzhou Dianzi University, 10018 Hangzhou, Zhejian Province, PR China;3. College of Engineering, Zhejiang Agricultural & Forestry University, Lin''an, Hangzhou, Zhejiang Province, 311300, PR China;1. State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China;2. Research Institute of Chemical Defense, Beijing 100191, China
Abstract:HZSM-5 appears to be ferroelastic. Application of a uniaxial mechanical stress during the orthorhombic/monoclinic transition of zeoltie HZSM-5 changes the population of the monoclinic twin domains. The volume fraction of one of the twin mates is changed from 0.5 (before application of mechanical stress) to 0.06 in the crystal studied.
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