Synthesis of novel microporous materials based on the elucidation of formation of zeolites in nanolevel
基于阐明纳米级沸石形成的新型微孔材料的合成
基本信息
- 批准号:15360426
- 负责人:
- 金额:$ 9.79万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2005
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this research project, investigation on zeolite precursors during the stages of nucleation and crystal growth is performed at the level of atomic scale by means of various in situ characterization techniques. The formation process of zeolite crystals is recognized here as a kind of reaction network.As for the clarification of zeolite precursors, generation of ring structures which are composed of hetero-atoms such as oxides of Si, Al, and/or other metals, and the roles of alkali metals in the generation were focused on. High-Energy X-Ray Diffraction (HEXRD) is utilized for the investigation of ring structures of aluminosilicate species involved in the formation process of zeolites. We could clarify by the tool the critical roles of hetero-atoms on the ring species and of alkali metals on the assembly of the rings. We could successfully lead the conclusion that introduction of Al into the ring structure decreased the proportional contribution of odd-numbered rings, and the addition of Zn enhanced the formation of three-membered ring. It is noted that the ring number distribution is already determined in the amorphous phase of reactant aluminosilicate hydrogel prior to crystallization to each zeolitic phase. In the successive stage, nucleation and growth, we concluded that three kinds of particles of primary and secondary units and crystal exist in the aqueous phase of solution, by our original contribution using Small Angle X-ray Scattering(SAXS)-Wide Angle X-ray Scattering(WAXS) in situ measurement. We finally proposed a whole schematic process of crystallization of zeolite through these explorations.We also succeeded to obtain much smaller nano-crystal of zeolite than previously reported, owing to the knowledge obtained above. In this method, nano-crystals at higher concentration were achieved to crystallize without addition of organic additives, which are conventionally accepted as an indispensable reagent for such a type of nano-crystal.
在本研究计划中,通过各种原位表征技术,在原子尺度上对成核和晶体生长阶段的沸石前体进行了研究。沸石晶体的形成过程在这里被认为是一种反应网络,至于沸石前体的澄清,由杂原子如Si、Al和/或其它金属的氧化物组成的环结构的生成,并重点讨论了碱金属在生成过程中的作用。高能X射线衍射(HEXRD)用于研究沸石形成过程中涉及的铝硅酸盐物质的环结构。我们可以通过该工具阐明杂原子对环物种和碱金属对环组装的关键作用。结果表明,Al的引入降低了奇数环的贡献比例,Zn的引入促进了三元环的形成。应注意,在结晶成每个沸石相之前,已经在反应物铝硅酸盐水凝胶的无定形相中确定了环数分布。通过小角X射线散射(SAXS)-广角X射线散射(WAXS)原位测量,在成核和生长的连续阶段,我们得出了溶液水相中存在初级、次级单元和晶体三种粒子的结论。通过这些探索,我们最终提出了一个完整的沸石晶化过程的示意图,并成功地获得了比以前报道的小得多的沸石纳米晶。在该方法中,在不添加有机添加剂的情况下实现了较高浓度的纳米晶体的结晶,有机添加剂通常被接受为这种类型的纳米晶体的不可缺少的试剂。
项目成果
期刊论文数量(20)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Crystal Growth Behavior of Zeolites Elucidated by Atomic Force Microscopy
原子力显微镜阐明沸石的晶体生长行为
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Toru Wakihara;Tatsuya Okubo
- 通讯作者:Tatsuya Okubo
Toru Wakihara, Tatsuya Okubo: "Crystal Growth Behavior of Zeolites Elucidated by Atomic Force Microscopy"Journal of Chemical Engineering of Japan. (印刷中). (2004)
Toru Wakihara、Tatsuya Okubo:“原子力显微镜阐明的沸石晶体生长行为”日本化学工程杂志(2004 年出版)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Investigation of the surface structure of zeolite A.
- DOI:10.1039/b509263a
- 发表时间:2005-09
- 期刊:
- 影响因子:0
- 作者:T. Wakihara;Y. Sasaki;H. Kato;Y. Ikuhara;T. Okubo
- 通讯作者:T. Wakihara;Y. Sasaki;H. Kato;Y. Ikuhara;T. Okubo
In situ observation of homogeneous nucleation of nanosized zeolite A
- DOI:10.1039/b510963a
- 发表时间:2006-01-01
- 期刊:
- 影响因子:3.3
- 作者:Fan, W;O'Brien, M;Okubo, T
- 通讯作者:Okubo, T
Crystal growth of faujasite observed by atomic force microscopy
- DOI:10.1016/j.micromeso.2004.02.016
- 发表时间:2004-05
- 期刊:
- 影响因子:5.2
- 作者:T. Wakihara;A. Sugiyama;T. Okubo
- 通讯作者:T. Wakihara;A. Sugiyama;T. Okubo
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OKUBO Tatsuya其他文献
Reduction of crystal size of silicalite-1 synthesized in fluoride-containing media via multi-stage heating with intermediate stirring
多级加热中间搅拌降低含氟介质中合成的silicalite-1晶体尺寸
- DOI:
10.2109/jcersj2.21139 - 发表时间:
2022 - 期刊:
- 影响因子:1.1
- 作者:
IYOKI Kenta;ONISHI Takako;ANDO Mariko;SUKENAGA Sohei;SHIBATA Hiroyuki;OKUBO Tatsuya;WAKIHARA Toru - 通讯作者:
WAKIHARA Toru
脱アルミニウムによる小細孔ゼオライトの水熱耐久性向上
通过脱铝提高小孔沸石的水热耐久性
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
YOSHIOKA Tatsushi;IYOKI Kenta;SANO Tsuneji;OKUBO Tatsuya;WAKIHARA Toru;吉岡 達史・伊與木 健太・堀田 悠介・上村 佳大・加藤 丈晴・クレイグ・A・J・フィッシャー・劉 振東・大西 良治・佐々木 優吉・遠藤 明・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹 - 通讯作者:
吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹
Distributed Continuation Stealing is More Scalable than You Might Think
分布式连续窃取比您想象的更具可扩展性
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
YOSHIOKA Tatsushi;IYOKI Kenta;SANO Tsuneji;OKUBO Tatsuya;WAKIHARA Toru;吉岡 達史・伊與木 健太・堀田 悠介・上村 佳大・加藤 丈晴・クレイグ・A・J・フィッシャー・劉 振東・大西 良治・佐々木 優吉・遠藤 明・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;吉岡 達史・伊與木 健太・堀田 悠介・劉 振東・大西 良治・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹;Shumpei Shiina and Kenjiro Taura;Shumpei Shiina and Kenjiro Taura - 通讯作者:
Shumpei Shiina and Kenjiro Taura
Dealumination of small-pore zeolites by pore-opening migration process
小孔沸石的开孔迁移过程脱铝
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
YOSHIOKA Tatsushi;IYOKI Kenta;SANO Tsuneji;OKUBO Tatsuya;WAKIHARA Toru - 通讯作者:
WAKIHARA Toru
小細孔ゼオライトの脱アルミニウムにおける細孔拡大とその効果
小孔沸石脱铝中的孔扩张及其影响
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
YOSHIOKA Tatsushi;IYOKI Kenta;SANO Tsuneji;OKUBO Tatsuya;WAKIHARA Toru;吉岡 達史・伊與木 健太・堀田 悠介・上村 佳大・加藤 丈晴・クレイグ・A・J・フィッシャー・劉 振東・大西 良治・佐々木 優吉・遠藤 明・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹 - 通讯作者:
吉岡 達史・伊與木 健太・堀田 悠介・上村 佳大・加藤 丈晴・クレイグ・A・J・フィッシャー・劉 振東・大西 良治・佐々木 優吉・遠藤 明・武脇 隆彦・佐野 庸治・大久保 達也・脇原 徹
OKUBO Tatsuya的其他文献
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{{ truncateString('OKUBO Tatsuya', 18)}}的其他基金
Preparation of nano-sized zeolite by combining continuous flow and milling systems
连续流动与研磨系统相结合制备纳米沸石
- 批准号:
25630355 - 财政年份:2013
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of innovative synthetic routes to zeolites by oft-chemical method
常规化学方法开发沸石创新合成路线
- 批准号:
23651104 - 财政年份:2011
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Fine Synthesis of Nanobuilding Units and Construction of Multidimensional Structures through Their Self-Assembly
纳米建筑单元的精细合成以及通过自组装构建多维结构
- 批准号:
23350098 - 财政年份:2011
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of a step-by-step method for synthesizing novel zeolites and their applications
新型沸石的分步合成方法的开发及其应用
- 批准号:
20360355 - 财政年份:2008
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Elucidation of Nucleation -Crystal Growth Mechanism of Zeolites in an Atomic Scale, and its Application to Novel Process
原子尺度上沸石成核-晶体生长机制的阐明及其在新工艺中的应用
- 批准号:
13450325 - 财政年份:2001
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Photonic Crystal Thin Film : Rapid Production and Device Fabrication
光子晶体薄膜:快速生产和器件制造
- 批准号:
12555221 - 财政年份:2000
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Molecular Sieve Sensor for Pollutants Detection at Elevated Temperat
用于高温污染物检测的分子筛传感器
- 批准号:
07555543 - 财政年份:1995
- 资助金额:
$ 9.79万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
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- 资助金额:30.00 万元
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Control of molecular orientation using epitaxial crystal growth and its application
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- 批准号:
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X射线显微镜研究负热膨胀Ba1-xSrxZn2Si2O7固溶体的异质成核和晶体生长
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In-situ Monitoring and Active Controls of Individual Nucleation and Crystal Growth through Nanoscale Mass Transport
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312953969 - 财政年份:2016
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Collaborative Research Centres
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