Dynamic and 3D TEM study of diffusion process of photoexcited electron

光生电子扩散过程的动态和3D TEM研究

• 批准号: 24710110
• 负责人: YOSHIDA Kenta
• 金额: $ 2.33万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24710110/
• 关键词: 光触媒; トモグラフィー; 電子顕微鏡; ナノ粒子; 触媒; TEM; その場; ナノ構造; ３次元

During the academic year 2012-2013, Professor Kenta Yoshida explored catalytic potential of gold multiple twin particles. Relation between local strain of {111} surfaces of decahedral multiple twin particles and its CO adsorption properties were published. He has successfully applied high-resolution transmission electron microscopy to real-time visualisation of coalescence of the gold nanoparticle and thermal diffusion of platinum single atom. His publication during the academic year 2012-2013 were "On the Structural Origin of the Catalytic Properties of Inherently Strained Ultrasmall Decahedral Gold Nanoparticles", Nano Lett., Vol. 12, pp.2027(2012),"Direct observation of the initial process of Ostwald ripening using spherical aberration-corrected transmission electron microscopy", J. Electron Microsc., Vol.61, pp.99(2012) and "On the effect of atomic structure on the activity and deactivation of catalytic gold nanoparticles", Chem. Cat. Chem., Vol.4, pp.1638(2012).

在2012-2013学年期间，吉田健太教授探索了金多重孪生粒子的催化潜力。提出了十面体多重孪晶粒子{111}面局部应变与CO吸附性能的关系。他成功地将高分辨率透射电子显微镜应用于金纳米颗粒的聚结和铂单原子的热扩散的实时可视化。他在2012-2013学年期间的出版物是“关于固有应变超小十面体金纳米颗粒的催化性质的结构起源”，Nano Lett.，第12卷，第2027页（2012年），“Direct observation of the initial process of Ostwald ripening using spherical aberration-corrected transmission electron microscopy”，J. Electron Microsc.，Vol.61，pp.99（2012）和“On the effect of atomic structure on the activity and deactivation of catalytic gold nanoparticles”，Chem. Cat. Chem.，第4卷，第1638页（2012年）。

项目成果

On the structural origin of the catalytic properties of inherently strained ultrasmall decahedral gold nanoparticles.

• DOI: 10.1021/nl300067q
• 发表时间: 2012-03
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: M. Walsh;Kenta Yoshida;A. Kuwabara;Mungo Pay;P. Gai;E. Boyes

Key factors for the dynamic ETEM observation of single atoms.

• DOI: 10.1093/jmicro/dft033
• 发表时间: 2013-12
• 期刊: Microscopy
• 影响因子: 1.8
• 作者: Kenta Yoshida;T. Tominaga;T. Hanatani;A. Tagami;Y. Sasaki;J. Yamasaki;K. Saitoh;Nobuo Tanaka

燃料電池電極触媒の劣化過程のリアルタイム環境顕微鏡観察

实时环境显微镜观察燃料电池电极催化剂的劣化过程

• 发表时间: 2012
• 作者: 吉田健太;張旭東;Bright Alexander;田中信夫
• 通讯作者: 田中信夫

Influence of total beam current on HRTEM image resolution in differentially pumped ETEM with nitrogen gas

• DOI: 10.1016/j.ultramic.2012.08.007
• 发表时间: 2013-01-01
• 期刊: ULTRAMICROSCOPY
• 影响因子: 2.2
• 作者: Bright, A. N.;Yoshida, K.;Tanaka, N.
• 通讯作者: Tanaka, N.

Correlating the interface structure to spin injection in abrupt Fe/GaAs(001) films

• DOI: 10.1103/physrevb.87.024401
• 发表时间: 2013-01-02
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Fleet, L. R.;Yoshida, K.;Hirohata, A.
• 通讯作者: Hirohata, A.