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Dergiler / Turkish Journal of Chemistry / 2006 / Cilt: 30 - Sayı: 2

Surface properties and catalytic performance of $Pt/PrSrCoO_4$ catalysts for NO reduction by CO

Xirui ZENG
Hua ZHONG
Sayfa
211–221
Yayın Tarihi
2022-11-05
DOI
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Characterization of the catalysts by XRD, TPD, TPR and XPS methods reveals that both the surface and the bulk phase of the perovskite-type $PrSrCoO_4$ play important roles in the catalytic activities for NO reduction by CO.

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Amaç & Hipotez:Perovskite-type $Pr_{2-x}Sr_xCoO_4pmlambda$ mixed oxides were prepared by different calcination temperatures and were investigated by XRD, BET, TPD, TPR and XPS methods.
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Temel Bulgular & Veri:These catalysts possess high catalytic activities towards the NO reduction by CO, and the activity of the PrSrCoO4 catalyst prepared by calcining at 750 °C is the best among these samples.
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Sonuç & Katkı:Characterization of the catalysts by XRD, TPD, TPR and XPS methods reveals that both the surface and the bulk phase of the perovskite-type $PrSrCoO_4$ play important roles in the catalytic activities for NO reduction by CO.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Perovskite-type $Pr_{2-x}Sr_xCoO_4pmlambda$ mixed oxides were prepared by different calcination temperatures and were investigated by XRD, BET, TPD, TPR and XPS methods. These catalysts possess high catalytic activities towards the NO reduction by CO, and the activity of the PrSrCoO4 catalyst prepared by calcining at 750 °C is the best among these samples. This is explained in terms of its greater oxygen vacancies and larger BET surface areas. The influence of modification by a suitable amount of Pt-doping on the surface properties and catalytic activity for NO reduction by CO was studied. The results show that the Pt-modified $PrSrCoO_4$ catalysts display activity significantly higher than that of the Pt-free system $PrSrCoO_4$. Characterization of the catalysts by XRD, TPD, TPR and XPS methods reveals that both the surface and the bulk phase of the perovskite-type $PrSrCoO_4$ play important roles in the catalytic activities for NO reduction by CO.

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Bu Makaleye Atıf Yap

ZENG, X., ZHONG, H. (2022). Surface properties and catalytic performance of $Pt/PrSrCoO_4$ catalysts for NO reduction by CO. Turkish Journal of Chemistry, Cilt: 30 - Sayı: 2, 211–221. https://ajindex.com/articles/602201

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