Creation of Hydrogen-Energy Nano-Spaces

氢能纳米空间的创造

• 批准号: 16074212
• 负责人: KITAGAWA Hiroshi
• 金额: $ 37.89万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16074212/
• 关键词: Coordination Space; Energy Device; Fuel Cell; Proton Conductor; Mixed conductor; 混合伝導; 環境材料; 構造・機能材料; ナノ材料; 複合材料・物性; 固体イオニクス; 配位高分子; 金属錯体; 固体電解質; プロトン共役レドックス; プロトニクス

1) hydrogen-storage nano-materials : Hydrogen storage materials are indispensable for usage of hydrogen energy. Metal nanoparticles, which exhibit different properties from bulk metals, have potential for new functional materials. Since the metal nanoparticles possess large surface area, they are expected to dissociate hydrogen molecules easily and absorb hydrogen at lower temperature and lower pressure. The metal nanoparticles is, therefore, a candidate for a novel hydrogen reservoir. In this study, we prepared the Pd nanoparticle with small size-dispersion and investigated its pressure-composition isotherms and structural change during hydrogen absorption in detail. Mono-dispersed palladium nanoparticles coated with polymer have been prepared and their hydrogen absorption properties were investigated. The averaged diameter of the prepared particles was estimated to be 2.6±0.4nm from a TEM photograph. By measurement of hydrogen pressure-composition isotherms, the hydrogen solubility o … More f the Pd particles was determined to be 0.45 H per Pd. In the isotherms, plateau-like region was observed in the temperature rang of 303 to 393 K, indicating the coexistence of solid solution and hydride phases in the Pd nanoparticles in this temperature region.2) highly proton-conductive coordination polymers : Room-temperature proton conductivity, coordination geometry, and pore-diameter distribution of the title Cu (II) coordination polymer have been investigated by AC conductivity, EXAFS, and N2 adsorption isotherm measurements. The AC proton conductivity (σp) obtained from Cole-Cole plot analysis under relative humidity of 75 % and 300 K exhibits a considerable high value of 10-6 S cm-1 as a room-temperature σp. The mechanism of proton conduction seems to be similar to that of a proton-exchange membrane, Nafion, which contains much cluster of water molecules in the porous space of the polymer. The present Cu coordination polymer was revealed to possess porous space of about 6 A, which includes much water molecules more than 10H20 per unit cell. The dimeric Cu (II) square-planar coordination geometry was confirmed by EXAFS analysis using synchrotron radiation source at SPring-8. Less

1）氢存储纳米材料：氢存储材料对于使用氢能是必不可少的。金属纳米颗粒暴露于大量金属的不同特性，具有新功能材料的潜力。由于金属纳米颗粒具有较大的表面积，因此预计它们将容易分离氢分子，并在较低温度和较低压力下吸收氢。因此，金属纳米颗粒是新型氢晶状体的候选者。在这项研究中，我们用较小的尺寸分散准备了PD纳米颗粒，并研究了其在氢气吸收过程中详细研究其压力组分等温线和结构变化。已经制备了涂有聚合物的单分散钯纳米颗粒，并研究了其氢吸收特性。据估计，与TEM照片相比，制备颗粒的平均直径为2.6±0.4nm。通过测量氢压力组分等温线，氢溶液o…更多的PD颗粒被确定为每PD 0.45 h。在等温线中，在393 K的温度范围内观察到类似高原的区域，表明该温度区域的PD纳米颗粒中实心溶液和Hydrode相之间存在。电导率，EXAF和N2吸附等温线测量。在75％和300 K的相对湿度下，从Cole-Cole图分析获得的AC质子电导率（σP）表现出可相当高的10-6 S CM-1作为室温σp。质子传导的机制似乎类似于质子交换膜Nafion的机制，该膜在聚合物的多孔空间中包含大量的水分子簇。目前的CU配位聚合物揭示了大约6a的多孔空间，其中包括大量水分子超过10H20每个单位细胞。通过使用同步加速器辐射源在弹簧-8处通过EXAFS分析来证实二聚体Cu（II）方形平面配位几何形状。较少的

项目成果

金属ナノ粒子の水素吸蔵

金属纳米粒子的氢吸收

• 发表时间: 2004
• 期刊: 化学工業 55
• 作者: M.Yamauchi;H.Kitagawa;M.-a.Morikawa et al.;M.Yamauchi et al.;T.Yonezawa et al.;Y.Nagao et al.;M.-a.Morikawa et al.;S.Takaishi et al.;K.Matsuura;K.Matsuura;H.Kitagawa et al.
• 通讯作者: H.Kitagawa et al.

Thermochromism in an Organic Crystal Based on the Co-Existence of δ- and π-Dimers

基于δ-和π-二聚体共存的有机晶体中的热致变色

• 发表时间: 2008
• 期刊: Nature Meterials 7
• 作者: Y. Morita;S. Suzuki;K. Fukui;S. Nakazawa;H. Kitagawa;et al.
• 通讯作者: et al.

Thermochromism in an Organic Crystal Based on the Co-Existence of σ- and π-Diners

基于 σ- 和 π-Diner 共存的有机晶体中的热致变色现象

• 发表时间: 2008
• 期刊: Nature Meterials 7
• 作者: Y. Morita;S. Suzuki;K. Fukui;S. Nakazawa;H. Kitagawa;et al.
• 通讯作者: et al.

四角柱Ladder型MX錯体の合成と物性

四棱柱梯型MX配合物的合成及物理性质

• 发表时间: 2008
• 作者: 大坪主弥;北川宏
• 通讯作者: 北川宏

New Hydrogen-Bonded Charge-Transfer Complex [Ni(Hpydt)_2] TNAP; Synthesis, Structure and Electrical Conductivity

新型氢键电荷转移配合物[Ni(Hpydt)_2] TNAP；

• 发表时间: 2007
• 期刊: Inorg. Chem. Commun. 10
• 作者: S.;Shibahara・H.;Kitagawa・T.;Kubo・K.;Nakasuji
• 通讯作者: Nakasuji