微波辐射促进ZnCl<sub>2</sub>与Y分子筛固相反应的研究

引用本文: 银董红, 尹笃林. 微波辐射促进ZnCl₂与Y分子筛固相反应的研究[J]. 物理化学学报, 1998, 14(05): 448-452. doi: 10.3866/PKU.WHXB19980513 shu

Citation: Yin Dong-Hong, Yin Du-Lin. Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation[J]. Acta Physico-Chimica Sinica, 1998, 14(05): 448-452. doi: 10.3866/PKU.WHXB19980513 shu

微波辐射促进ZnCl₂与Y分子筛固相反应的研究

银董红 ,
尹笃林

摘要:

采用XRD、IR和原子吸收光谱等手段对微波固相法制备的ZnCl2／Y催化剂进行了表征. 微波辐射促进了ZnCl2在分子筛表面分散和固态离子交换，分散的ZnCl2可与分子筛表面氧原子发生较强的配位键合作用．当ZnCl2的负载量达到37.5％时，ZnCl2仍可完全分散于NaY分子筛表面，此时的固态离子交换度为84％．随着分子筛表面酸菌和区强度的增加，ZnCl2与分子筛的固态离子交换量减少．

关键词:

微波辐射
/ ZnCl2
/ Y分子筛
/ 固相反应
/ 催化剂

English

Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation

1.
Institute of Fine Catalysis and Synthesis,Hunan Normal University,Changsha 410081
Received Date: 22 September 1997
Available Online: 15 May 1998

Abstract:

ZnCl2/Y catalysts prepared by solid-state reaction of anhydrous ZnCl2 and Y zeolites under microwave irradiation were characterized by XRD, IR and AAS. ZnCl2 was intercalated in Y zeolites and dispersed on the surface of Y zeolite, part of ZnCl2 dispersed could result in solid-state ion exchange with Y. The amount of dispersion and solid-state ion exchange were related to ZnCl2 loading and the surface acid property of the zeolite. When ZnCl2 loading was 37.5% (mass fraction) in NaY zeolite, ZnCl2 was still completely dispersed on the surf are of zeolite and the degree of solid- state ion exchang was 84%. The appearance of new band at 890 cm-l in the framework IR spectra of ZnCl2/NaY sample was due to the dispersed ZnCl2 coordinating strongly with oxygen of NaY surface. With the increasing of the number of arid centers and the acid strength of the surface of Y zeolite the amount of solid-state ion exchange decreased.

Key words:

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

微波辐射促进ZnCl₂与Y分子筛固相反应的研究

English

Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

微波辐射促进ZnCl2与Y分子筛固相反应的研究

English

Study on the Solid-state Reaction of ZnCl2 and Y Zeolites under Microwave lrradiation

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

微波辐射促进ZnCl₂与Y分子筛固相反应的研究

Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs