Pseudo Phase Transition of Molecular Assembly in a Structure- Controlled Subnanospace Having Enhanced Potential.
结构控制的亚纳米空间中分子组装的伪相变具有增强的潜力。
基本信息
- 批准号:04453004
- 负责人:
- 金额:$ 4.1万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (B)
- 财政年份:1992
- 资助国家:日本
- 起止时间:1992 至 1993
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Molecular states of SO_2, NO, N_2, CH_4, and H_2O in carbon subnanospaces of slit shape were studied by heat of adsorption, in situ X-ray diffraction, high pressure adsorption, and ordinary molecular adsorption. Supercritical NO gas was changed into quasi-vapor through formation of (NO)_2 due to strong molecular field of the subnanospace with the aid of magnetic perturbation. Also supercritical CH_4 and N_2 was transformed to their quasi-vapor due to the subnanospace field and application of high pressure of adsorptives. The structural change of H_2O molecular assembly in the subnanospace was examined by high resolution X-ray diffraction anaysis, indicating presence of a distorted two-dimensional ice like structure.New phase transition of molecular assembly in the carbon nanospace was shown in the system of SO_2 and carbon slit pore of 0.8 nm width. The heat of SO_2 adsorption in the carbon subnanospace was divided into the constant region of enhanced potential field below phi=0.6 and an steep increase region above phi=0.6. The constant region was ascribed to enhanced SO_2-slit pore interactions (about 10 KJ/mol) including the induced dipole-permanent dipole interaction ; this indicated the parallel arrangement of dipoles of adsorbed SO_2 molecules. The steep increase was caused by the inter SO_2 molecular interaction which gives rise to conversion of the dipoles, forming the anti-parallel arrangement. The molecular potential calculation using the Lennard-Jones potential, the image potential approximation, and the Stockmayr potential supported this model. This orientation structure of the SO_2 dipoles in the carbon subnanospace depended on the micropore width ; in the greater carbon nanospace the above-mentioned steep transition was not observed. This research showed a new possibility of molecular chemistry controlled by the subnanospace field.
用吸附热、原位X射线衍射、高压吸附和普通分子吸附等方法研究了SO_2、NO、N_2、CH_4和H_2O在狭缝状碳亚纳米空间中的分子状态。超临界NO气体在磁扰动的作用下,在亚纳米空间的强分子场作用下生成(NO)_2,从而转变为准蒸汽。亚纳米空间场和吸附剂高压的作用使超临界CH_4和N_2转化为准蒸气。高分辨X射线衍射分析表明,H_2O分子组装体在亚纳米空间中的结构发生了变化,出现了扭曲的二维冰状结构,SO_2和0.8nm宽的碳狭缝孔体系中的分子组装体出现了新的相变。SO_2在碳亚纳米空间中的吸附热可划分为phi=0.6以下的增强势场恒定区和phi=0.6以上的急剧增加区。在恒定区,SO_2分子与狭缝孔的相互作用增强(约10 KJ/mol),其中包括诱导的偶极-永久偶极相互作用,表明吸附SO_2分子的偶极平行排列。这是由于SO_2分子间的相互作用引起了偶极子的转换,形成了反平行排列。使用Lennard-Jones势、镜像势近似和Stockmayr势计算的分子势支持了该模型。这种取向结构在亚纳米空间中依赖于纳米尺度的宽度,在更大的纳米空间中没有观察到上述陡峭的转变。这项研究为亚纳米空间场控制分子化学提供了新的可能性。
项目成果
期刊论文数量(36)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Kaneko,K.Murata,T.Suzuki: "Enhancement effect of micropore filling for supercritical metharce by MgO dispersion" Langmuir. 9. 1165-1167 (1993)
K.Kaneko、K.Murata、T.Suzuki:“MgO 分散体对超临界甲醇微孔填充的增强作用”Langmuir。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
J.Fukazawa,K.Kaneko,C.D.Poon,E.T.Samulski: "Molewlar motion in micropore space by D-NMR in“Characterization of Porous Solids III"" J.Rouquerol編集(印刷中), (1994)
J. Fukazawa、K. Kaneko、C. D. Poon、E. T. Samulski:“多孔固体特性 III 中的 D-NMR 微孔空间中的分子运动”,J. Rouquerol 编辑(正在出版),(1994 年)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Kaneko, R.Cracknell, and D.Nicholson: "Nitrogen adsorption in slit pores at ambient temperatures : Comparison of simulation and experiment." Langmuir. (in press). (1994)
K.Kaneko、R.Cracknell 和 D.Nicholson:“环境温度下狭缝孔隙中的氮吸附:模拟与实验的比较。”
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Suzuki,K.Kaneko: "The micrographite growth of activated carbon fibers with high temperature treatment studied by computer-aided X-ray diffraction" Carbon. 31. 1360-1361 (1993)
T.Suzuki,K.Kaneko:“通过计算机辅助 X 射线衍射研究高温处理活性碳纤维的微石墨生长”碳。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Kaneko, C.Ishii, T.Arai, and H.Suematsu: "Defect associated microporous nature of C_<60> crystals" J.Phys.Chem.97. 6764-6766 (1993)
K.Kaneko、C.Ishii、T.Arai 和 H.Suematsu:“C_60 晶体的缺陷相关微孔性质”J.Phys.Chem.97。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
KANEKO Katsumi其他文献
KANEKO Katsumi的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('KANEKO Katsumi', 18)}}的其他基金
Chemical activity of edge-atom rich carbon nanospaces of quasi high pressure effect
准高压效应富含边缘原子的碳纳米空间的化学活性
- 批准号:
24241038 - 财政年份:2012
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Development of Highly Selective Deuteration Reaction Using Quantum Molecular Sieving Effect Enhanced in Nanospace Fields
利用纳米空间场中增强的量子分子筛分效应开发高选择性氘化反应
- 批准号:
21241026 - 财政年份:2009
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
High density storage of clean energy fuel gases in soft nanospaces
软纳米空间中清洁能源燃气的高密度存储
- 批准号:
15101003 - 财政年份:2003
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Determination method of angstrom pore size distribution with molecular statistical method
分子统计法测定埃孔径分布的方法
- 批准号:
10554039 - 财政年份:1998
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Molecular Assemblies Confined in a Controlled Angstrom-Range Solid Space
限制在受控埃范围固体空间中的分子组装体
- 批准号:
06403013 - 财政年份:1994
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Angstrom Porosimety with quantum Herium
埃孔隙率与量子氦
- 批准号:
05554018 - 财政年份:1993
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
相似海外基金
Study on friction reduction mechanism of solvation layers on molecular adsorption films
分子吸附膜溶剂化层减摩机理研究
- 批准号:
20K14642 - 财政年份:2020
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
Mechanictic study of the molecular adsorption of at the oil/water interface using the non-Bornian solvation model
利用非博恩溶剂化模型研究油/水界面分子吸附的机理
- 批准号:
20K05554 - 财政年份:2020
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of cluster type molecular adsorption in the nanospace of porous metal complexes
多孔金属配合物纳米空间团簇型分子吸附研究进展
- 批准号:
19H02734 - 财政年份:2019
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Autonomous plasmonic nanomotors responding to surface molecular adsorption
响应表面分子吸附的自主等离子体纳米马达
- 批准号:
19H02533 - 财政年份:2019
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Modelling of molecular adsorption at surfaces of 3D and 2D materials
3D 和 2D 材料表面的分子吸附建模
- 批准号:
2055254 - 财政年份:2018
- 资助金额:
$ 4.1万 - 项目类别:
Studentship
Mechanistic Insights into Covalent and Ionic Contributions to Molecular Adsorption and Reaction on Transition Metals
共价和离子对过渡金属分子吸附和反应贡献的机理见解
- 批准号:
1665265 - 财政年份:2017
- 资助金额:
$ 4.1万 - 项目类别:
Standard Grant
Molecular-scale investigations on interfacial molecular adsorption structures by high-speed three-dimensional scanning force microscopy with an environmental control system
利用环境控制系统的高速三维扫描力显微镜对界面分子吸附结构进行分子尺度研究
- 批准号:
16H02111 - 财政年份:2016
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Precise Design and Functionalization of Asymmetric Supramolecular Spaces: Predictable Asymmetric Reactions based on Molecular Adsorption
不对称超分子空间的精确设计和功能化:基于分子吸附的可预测不对称反应
- 批准号:
16K13959 - 财政年份:2016
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of plasma synthesis technique for hollow carbon nanospheres and experimental verification of their molecular adsorption effects
空心碳纳米球等离子体合成技术开发及其分子吸附效果实验验证
- 批准号:
16K13709 - 财政年份:2016
- 资助金额:
$ 4.1万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Microscopy of molecular adsorption (A03)
分子吸附显微镜(A03)
- 批准号:
312952445 - 财政年份:2016
- 资助金额:
$ 4.1万 - 项目类别:
Collaborative Research Centres