2022年10月19日 · Using operando transmission electron microscopy, we show that Pd NPs exhibit periodic round–to–flat transitions altering their facets during CO oxidation reaction at atmospheric pressure and...

2012年1月1日 · We have developed a nanoreactor, sample holder and gas system for in-situ transmission electron microscopy (TEM) of hydrogen storage materials up to at least 4.5 bar. The MEMS-based nanoreactor has a microheater, two electron-transparent windows and a …

2024年6月14日 · Using electrochemical liquid cell transmission electron microscopy, we visualize the electrochemical corrosion of Pd@Pt core-shell octahedral nanoparticles towards a Pt nanoframe.

2008年2月29日 · The structure of the Au–Pd particles was observed by the analytical transmission electron microscope (TEM), JEOL JEM-3000F, equipped with energy dispersive X-ray spectroscopy (EDS), and ADF-STEM systems.

2001年9月10日 · In the present work, we report a study of the structure of Pd clusters grown by colloidal methods using high resolution TEM, fast Fourier transforms of images, modeling of the structure and molecular dynamics calculations. Palladium clusters have been studied by a number of groups using TEM (see for instance, [7], [8], [9], [10]).

2025年2月6日 · In-situ transmission electron microscopy (TEM) studies reveal key insights into the structural and chemical evolution of nanoparticles (NPs) under external stimuli like heating and biasing, which is critical for evaluating their suitability in chemical reactions and their tendency towards forming novel NP systems.

2022年3月23日 · These findings provide thermodynamic insights into metastability engineering strategies that can be deployed to discover new metastable phases. The advent of liquid cell transmission electron...

Herein, we present an in situ atomic scale study on the surface oxidation behavior of palladium nanocrystals, which is induced by electron beam irradiation under low oxygen partial pressure and at room temperature inside an environmental transmission electron microscope.

We present an in situ atomic scale study of the surface oxidation behavior of Pd nanocrystals, induced by electron beam irradiation using an environmental transmission electron microscope. The surface oxidation initially started at the edge sites with atomic steps or vertex sites.

2010年10月19日 · The analysis using transmission electron microscopy (TEM), high-angle annular dark-field (HAADF)-scanning transmission electron microscopy (STEM), extended X-ray absorption fine structure (EXAFS), and X-ray photoelectron spectroscopy (XPS) demonstrated that the activation is driven by metal−support interactions followed by phase transformation.