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Shape evolution under gas environment

Understand catalysis in full

Researchers: X. Zhang et al., Zhejiang University, China

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In the spotlight

Octahedral PtNi Nanocatalysts for Electrochemical Oxygen Reduction Reaction

In this contribution, the authors have imaged octahedral faceted nanoparticles at different temperatures. These particles are highly attractive fuel cell catalysts as a result of their activity for the oxygen reduction reaction (ORR). However, their surface compositional and morphological stability currently limits their long-term performance in real membrane electrode assemblies (MEAs). Specifically, the authors have performed in situ heating of chemically segregated PtNi1.5 octahedral nanoparticles inside a transmission electron microscope, in order to study their compositional and morphological changes.

Events

September 2018
  • International Microscopy Conference IMC19

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Capture the dynamic structure change in situ and understand the structure-property relationship. Expand your application space with our range of heating, biasing, gas and liquid solutions.

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