Development of Structure-specific Energy Materials Using Hetero-structured Nanoparticles

利用异质结构纳米粒子开发结构特异性能源材料

• 批准号: 23245028
• 负责人: TERANISHI Toshiharu
• 金额: $ 32.7万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23245028/
• 关键词: ナノ粒子; コロイド; ヘテロ接合; 磁性; ナノコンポジット磁石; 水分解; 新エネルギー

L10-FePd/alpha-Fe nanocomposite magnets with various hard/soft volume fractions were formed by annealing Pd/gamma-Fe2O3 heterostructured nanoparticles (NPs) and pure Pd NPs. The sample with a hard/soft volume ratio of 82/18 formed by annealing at 773 K had the largest maximum energy product (10.3 MGOe). The formation of an octahedral shape was found to further increase the magnetic properties. As for the photocatalysts for overall water splitting under visible light, when the size tuned Rh NPs were applied for use as cocatalysts in a photocatalyst (solid solution of GaN and ZnO), it was demonstrated that smaller Rh cores gave higher activity than the larger ones. Then, the CoxMn3-xO4 mixed oxide NPs were studied as a new cocatalyst for photocatalytic water oxidation. The photocatalytic activity of the CoxMn3-xO4 NPs-loaded photocatalyst for overall water splitting was 2.6 times higher than that without the CoxMn3-xO4 NPs.

通过对Pd/γ-Fe_2O_3异质结构纳米颗粒(NPs)和纯Pd纳米颗粒的热处理，制备了不同硬/软体积分数的L10-FEPD/α-Fe纳米复合磁体。在773K时，软硬体积比为82/18的样品具有最大的最大能积(10.3MGOe)。八面体形状的形成进一步提高了磁性。对于可见光下整体分解水的光催化剂，当将尺寸可调的Rh纳米颗粒作为助催化剂用于光催化剂(GaN和ZnO的固溶体)时，发现较小的Rh核比较大的Rh核具有更高的活性。然后，对CoxMn3-xO4复合氧化物纳米粒子作为光催化水氧化的新型助催化剂进行了研究。负载CoxMn3-xO4纳米粒子的光催化剂对水的整体分解活性是不负载CoxMn3-xO4纳米粒子的2.6倍。

项目成果

Platonic Hexahedron Composed of Six Organic Faces with an Inscribed Au Cluster

• DOI: 10.1021/ja209634g
• 发表时间: 2012-01-18
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Sakamoto, Masanori;Tanaka, Daisuke;Teranish, Toshiharu
• 通讯作者: Teranish, Toshiharu

ナノ構造制御によるL1_0-FePd/α-Fe ナノコンポジット磁石の高性能化と硬軟磁性相間交換結合の直接観測

通过纳米结构控制和直接观察硬软磁相间交换耦合提高L1_0-FePd/α-Fe纳米复合磁体的性能

• 发表时间: 2013
• 作者: 佐藤良太、寺西利治;ら
• 通讯作者: ら

無機ナノ粒子の革新的エネルギー材料への展開

将无机纳米粒子开发成创新能源材料

• 发表时间: 2012
• 作者: D. Matsumura;K. Kitazawa;S. Terai;T. Kochi;Y. Ie;M. Nitani;Y. Aso;F. Kakiuchi;寺西利治
• 通讯作者: 寺西利治

複数の結晶相が接合したナノ粒子

具有多个晶相连接在一起的纳米颗粒

• 发表时间: 2011
• 作者: 田代 彩;田中一成;家 裕隆;安蘇芳雄;寺西利治
• 通讯作者: 寺西利治

High-Quality Inorganic Nanoparticles for Highly Efficient Photoenergy Conversion

用于高效光能转换的高质量无机纳米颗粒

• 发表时间: 2011
• 作者: Hiromitsu Sogawa;Hitoshi Okuda;Toshikazu Takata;T.Teranishi
• 通讯作者: T.Teranishi