Abstract

In-situ observation is important to reveal real properties of materials. Especially, for catalysts, analysis during reaction is essential. “Environmental-cell (E-cell) electron microscopy” technique, which enables gas introduction around specimens, has been investigated actively[1]. The authors also have tried to develop the “closed-type” E-cell transmission electron microscope (TEM), aiming for the real condition, i.e. atmosphere pressure. In addition, high-resolution is tried to be simultaneously achieved, since our target is nano-size noble metal catalysts[2]. In the paper, we demonstrate potentials of our developed E-cell TEM system to observe dynamics of catalytic gold nano-particles.

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