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Updated: Mar 30, 2026

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions
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同位位置伝送電子顕微鏡 場所選択型Ptナノ触媒の画像化:電気化学的活性化と表面破壊

Rosa M Arán-Ais1, Yingchao Yu, Robert Hovden

  • 1Instituto de Electroquímica, Universidad de Alicante . Apdo 99, 03080, Alicante, Spain.

Journal of the American Chemical Society
|November 3, 2015
PubMed
まとめ

電気化学のサイクルにより,六角形のプラチナナノ粒子が急速に分解され,その形状が変化し,移動を引き起こします. これは,特に酸素還元反応において,形状のプラチナナノ粒子を電気触媒として使用する際の注意の必要性を強調しています.

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Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
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Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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