What question did this study set out to answer?

This study aims to explore the effectiveness of platinum group catalysts in converting nitric oxide to ammonia.

March 3, 2026Open Access

Explorative Study of Platinum Group Catalysts for Nitric Oxide Conversion to Ammonia

Key Points

This study aims to explore the effectiveness of platinum group catalysts in converting nitric oxide to ammonia.
Investigated catalytic activities of platinum metal group catalysts supported on various metal oxides.
Conducted experiments using NO–CO–H2O and NO–H2 reactions.
Analyzed effects of space velocity on ammonia formation rates.
Pt/TiO2 showed high NTA activity at 200 °C for both reactions.
For NO–CO–H2O, the NH3 formation rate reached maximum capacity below 200 °C.
For NO–H2, the NH3 formation rate improved with increased space velocity.

Abstract

Catalytic activities of platinum metal group catalysts supported on various metal oxides for NO conversion to NH3 (NOx-To-Ammonia: NTA) were investigated using the NO–CO–H2O and NO–H2 reactions. Pt/TiO2 exhibited high NTA activity at 200 °C for both reactions. Effects of space velocity on NTA activity of Pt/TiO2 revealed that NH3 formation rate for NO–CO–H2O reaction below 200 °C reached maximum capacity, whereas that for NO–H2 reaction increased with higher space velocity.

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Cite This Study

Kobayashi et al. (Sat,) studied this question.

synapsesocial.com/papers/69a67e0ef353c071a6f09ed5 https://doi.org/https://doi.org/10.1627/jpi.69.133

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