次世代燃料電池電気自動車の為の高容量3mass%水素吸蔵BCC型合金の開発

开发用于下一代燃料电池电动汽车的高容量3mass%储氢BCC型合金

• 批准号: 01J08280
• 负责人: 田村 卓也
• 金额: $ 1.28万
• 依托单位: National Institute of Advanced Industrial Science and Technology (2002)Tohoku University (2001)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01J08280/
• 关键词: 高容量水素吸蔵合金; 体心立方構造; 二水素化物; 一水素化物; 重水素; 同位体効果; 水素放出量; 2倍

BCC構造を有するバナジウムは,水素,重水素における吸蔵特性において,大きな同位体効果を有している事が知られている.そこで,Ti-Cr-V系合金において,水素,重水素における同位体効果を測定し,1,2水素化物形成領域の境界線に及ぼす同位体効果の影響を調査した.その結果,20at%V合金においては水素の場合,Cr量が56at%Cr以上で1水素化物が出現し,最大水素吸蔵量が大きく減少したが、重水素の場合には,より高Cr量である60at%Cr以上で1重水素化物が出現し,最大重水素吸蔵量が大きく減少することが判明した.これは,1水素化物と1重水素化物両方を形成する合金においては,重水素のプラトー圧が水素のプラトー圧よりも高く,2水素化物と2重水素化物両方を形成する合金では,重水素のプラトー圧が水素のプラトー圧よりも低いためであることが原因であると考えられる.水素では1水素化物が形成されるため,水素放出量が1.1mass%と少ないが、重水素においては2重水素化物が形成されるTi-56at%Cr-20at%V合金において,2重水素化物が形成される重水素において重水素処理(重水素を吸蔵,放出)を行った後に水素を吸放出させた場合,水素においても1水素化物ではなく2水素化物が主に形成され,重水素処理を行わずに水素を吸蔵させ場合と比較すると水素放出量が1.1mass%から2.2mass%と2倍になることが判明した。

BCC structure has some properties such as absorption, absorption, In this paper, the effects of isotope in Ti-Cr-V alloy on the formation of 1,2-hydrate and the effects of isotope in Ti-Cr-V alloy on the formation of 1,2-hydrate were investigated. As a result, in the case of 20at% V alloy, when Cr content is 56at% Cr or more, 1 hydrate occurs, maximum water absorption decreases greatly, and in the case of heavy water, when Cr content is 60at% Cr or more, 1 hydrate occurs, maximum heavy water absorption decreases greatly. For example, 1-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydrate and 2-hydro-hydrate are formed into alloys, 1-hydro-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 2-hydro-hydrate are formed into alloys, 3-hydro-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 2-hydro-hydrate are formed into alloys, 3-hydro-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 2-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 2-hydro-hydrate are formed into alloys, 3-hydro-hydrate and 1-hydro-hydrate are formed into alloys, 2-hydro-hydrate and 2-hydro-hydrate are formed into alloys. The amount of water released is 1.1 mass %. The amount of heavy water released is 1.2 mass %. The amount of heavy water released is 1.1 mass %. The amount of heavy (heavy water element absorption, release) after the operation of water element absorption and release, water element in the first hydrate, water element in the second hydrate formation, heavy water element treatment, water element absorption and release in the case of comparison, water element release amount of 1.1mass% to 2.2mass% to 2 times.

项目成果

T.Tamura et al.: "Effects of Protide Structures on Hysteresis in Ti-Cr-V Protium Absorption Alloys"Materials Transactions. 43・11. 2753-2756 (2002)

T. Tamura 等人：“Protide 结构对 Ti-Cr-V Protium 吸收合金磁滞的影响”Materials Transactions 43・11 (2002)。

T.Tamura et al.: "Protium absorption properties and protide formations of Ti-Cr-V alloys"Journal of Alloys and Compounds. (印刷中). (2003)

T. Tamura 等人：“Ti-Cr-V 合金的氕吸收特性和质子形成”《合金与化合物杂志》（出版中）。

T.Tamura et al.: "Protium Absorption Properties of Ti-Cr-V-Mn Alloys in Low Pressure Regions"Materials Transactions. 43・5. 1120-1123 (2002)

T. Tamura 等人：“Ti-Cr-V-Mn 合金在低压区域的氕吸收特性”Materials Transactions 43・5 (2002)。

T.Tamura et al.: "Hydrogen Isotope Effects on Absorption Properties of Ti-Cr-V Alloys"Materials Transactions. 44・4(印刷中). (2003)

T. Tamura 等人：“氢同位素对 Ti-Cr-V 合金吸收性能的影响”，Materials Transactions 44・4（出版中）。