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March 4, 2026RSC Advances0 citationsOpen Access

Silica-supported Pt(0) single-atom catalyst chemisorbing hydrogen but converting to Pt( iv ) by ambient oxygen

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GNGwang-Jin NaJHJongha HwangRRRyong Ryoo

Key Points

  • This research aims to examine the behavior of Pt(0) single atoms on silica when exposed to hydrogen and ambient oxygen.
  • Characterization of Pt(0) single atoms on porous silica.
  • Measurement of hydrogen chemisorption capacity.
  • Assessment of catalytic activity for olefin hydrogenation.
  • Monitoring oxidation of Pt(0) to Pt(IV) upon oxygen exposure.
  • Observed strong hydrogen chemisorption (2.0 H/Pt).
  • No olefin hydrogenation activity noted.
  • Rapid oxidation of Pt(0) to Pt(IV) in the presence of oxygen.

Abstract

Pt(0) single atoms on porous silica show strong hydrogen chemisorption (2.0H/Pt) but no olefin hydrogenation activity, and are readily oxidized to Pt( iv ) upon exposure to oxygen.

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Cite This Study

Na et al. (2026) studied this question.

synapsesocial.com/papers/69a7cd9dd48f933b5eeda156https://doi.org/10.1039/d6ra00018e
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