Temperature Effect on 1H Chemical Shift of Hydroxyl Groups in Zeolites

温度对沸石中羟基1H化学位移的影响

基本信息

  • 批准号:
    24656486
  • 负责人:
  • 金额:
    $ 2.58万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
  • 财政年份:
    2012
  • 资助国家:
    日本
  • 起止时间:
    2012-04-01 至 2013-03-31
  • 项目状态:
    已结题

项目摘要

The influence of temperature on 1H chemical shift due to hydroxyl groups in H+-exchanged any kinds of zeolites (ZSM-5 type zeolites including silicalite, mordenite and Y zeolites) was examined by variable temperatures 1H magic-angle spinning nuclear magnetic resonance (1H MAS NMR) spectroscopy measured from 298 to 673 K. The temperature dependence of the 1H chemical shift due to the bridging hydroxyl groups was more pronounced than that due to the terminal silanol groups and also the nest silanol groups. The relationship between the 1H chemical shift and the acid strength of the hydroxyl groups in zeolites was discussed on the basis of the variable temperature 1H MAS NMR measurements of zeolites, previously reported thermal analysis data, such as the heat of NH3 adsorption measured by NH3 temperature-programmed desorption, and also the catalytic activity for the conversion of ethanol and 1-hexene.
通过变温1H魔角旋转核磁共振(1H MAS)研究了温度对H+交换的各种沸石(ZSM-5型沸石,包括硅沸石、丝光沸石和Y沸石)中羟基引起的1H化学位移的影响。 NMR)光谱测量范围为 298 至 673 K。由于桥接羟基导致的 1H 化学位移的温度依赖性比由于桥接羟基导致的 1H 化学位移的温度依赖性更明显。末端硅烷醇基团以及巢状硅烷醇基团。基于沸石的变温 1H MAS NMR 测量、先前报道的热分析数据,如通过 NH3 温度测量的 NH3 吸附热,讨论了沸石中 1H 化学位移与羟基酸强度之间的关系-程序解吸,以及乙醇和1-己烯转化的催化活性。

项目成果

期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
^1H MAS NMRからみた高温におけるゼオライトの水酸基の性質と酸触媒特性
^1H 从 MAS NMR 看出沸石中羟基的性质和高温下酸催化剂的性质
  • DOI:
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hajime Munakata;To-ru Koyama;Tatsuaki Yashima;Naoki Asakawa;Toshinori O-nuki;Ken Motokura;Akimitsu Miyaji;Toshihide Baba;宗像元・小山徹・本倉健・宮地輝光・馬場俊秀;宗像元,小山徹,八嶋建明,本倉健,宮地輝光,馬場俊秀
  • 通讯作者:
    宗像元,小山徹,八嶋建明,本倉健,宮地輝光,馬場俊秀
Shape-Selective Catalysis Determined by the Volume of a Zeolite Cavity and the Reaction Mechanism for Propylene Production by the Conversion of Butene Using a Proton-Exchanged Zeolite
  • DOI:
    10.1021/jp212549j
  • 发表时间:
    2012-02
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Y. Iwase;Y. Sakamoto;A. Shiga;A. Miyaji;Ken Motokura;To-ru Koyama;T. Baba
  • 通讯作者:
    Y. Iwase;Y. Sakamoto;A. Shiga;A. Miyaji;Ken Motokura;To-ru Koyama;T. Baba
^1H MAS NMRからみた高温におけるゼオライト水酸基の性質と酸触媒特性
^1H 从 MAS NMR 看出高温下沸石羟基的性质和酸催化剂性质
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hajime Munakata;To-ru Koyama;Tatsuaki Yashima;Naoki Asakawa;Toshinori O-nuki;Ken Motokura;Akimitsu Miyaji;Toshihide Baba;宗像元・小山徹・本倉健・宮地輝光・馬場俊秀
  • 通讯作者:
    宗像元・小山徹・本倉健・宮地輝光・馬場俊秀
Effect of morphology and particle size of ZSM-5 on catalytic performance for ethylene conversion and heptane cracking
  • DOI:
    10.1016/j.jcat.2012.01.014
  • 发表时间:
    2012-05
  • 期刊:
  • 影响因子:
    7.3
  • 作者:
    J. K. Reddy;Ken Motokura;To-ru Koyama;A. Miyaji;T. Baba
  • 通讯作者:
    J. K. Reddy;Ken Motokura;To-ru Koyama;A. Miyaji;T. Baba
Selective production of ethylene and propylene via monomolecular cracking of pentene over proton-exchanged zeolites: Pentene cracking mechanism determined by spatial volume of zeolite cavity
  • DOI:
    10.1016/j.jcat.2013.02.013
  • 发表时间:
    2013-06-01
  • 期刊:
  • 影响因子:
    7.3
  • 作者:
    Miyaji, Akimitsu;Sakamoto, Yasuharu;Baba, Toshihide
  • 通讯作者:
    Baba, Toshihide
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BABA Toshihide其他文献

BABA Toshihide的其他文献

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{{ truncateString('BABA Toshihide', 18)}}的其他基金

C-C bond scission of carbocations in zeolite pore cavity showing enzyme-like recognition
沸石孔腔中碳正离子的 C-C 键断裂显示出类酶识别
  • 批准号:
    23655122
  • 财政年份:
    2011
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Key Role of Pore Volume of Zeolite for Selective Production of Propylene from Olefins
沸石孔容对于烯烃选择性生产丙烯的关键作用
  • 批准号:
    21246120
  • 财政年份:
    2009
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
A Novel Approach of Methane Activation and Conversion of Methane to Fine Chemicals
甲烷活化和甲烷转化为精细化学品的新方法
  • 批准号:
    18360384
  • 财政年份:
    2006
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Strong Solid Bases for Organic Synthesis
有机合成的强固体碱
  • 批准号:
    10450301
  • 财政年份:
    1998
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Variable Temperature ^1H MAS NMR : A Powerful Tool for the Investigation of Dynamic Properties of Acidic Protons in Zeolites
变温 ^1H MAS NMR:研究沸石中酸质子动态性质的强大工具
  • 批准号:
    09650857
  • 财政年份:
    1997
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

Proton MAS NMR measurement of acidic protons over zeolites at high temperature
高温下沸石上酸性质子的质子 MAS NMR 测量
  • 批准号:
    25630364
  • 财政年份:
    2013
  • 资助金额:
    $ 2.58万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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