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Pt and Co3O4 supported on ceria and zirconia for the catalytic reduction of N2O in the presence of CO
Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik. Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan.ORCID-id: 0000-0002-7940-7297
Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan.
Ishfaq Ahmad Research Laboratories Complex, R-Block, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan.
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2019 (Engelska)Ingår i: Solid State Sciences, ISSN 1293-2558, E-ISSN 1873-3085, Vol. 98, artikel-id 106035Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Ceria (CeO2) and zirconia (ZrO2) supported Pt and Co3O4-based nanocatalysts were synthesized and characterized by different instrumental techniques. The catalysts redox properties and active surface areas were evaluated using temperature-programmed reduction (TPR), temperature-programmed oxidation (TPO) and H2-pulse chemisorption, respectively. The catalysts were tested for the thermal oxidation of carbon monoxide (CO), reduction of nitrous oxide (N2O) and conversion of N2O/CO mixture (1:1 vol%) . In catalytic tests, Pt–Co3O4/CeO2 (10:10%) oxidized CO up to 100% at 25 °C and Co3O4/CeO2 (20%) reduced N2O up to 90% at 320 °C. Moreover, Pt–Co3O4/CeO2 (10:10%) converted N2O/CO mixture to N2/CO2 up to 90% at about 210 °C. The low-temperature catalytic activity of Pt–Co3O4/CeO2 (10:10%) for CO oxidation and N2O/CO mixture redox conversion were attributed to uniform particle size, metals and support proper combination and electron interaction.

Ort, förlag, år, upplaga, sidor
Elsevier, 2019. Vol. 98, artikel-id 106035
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Ceria, N2O reduction, Nanocatalysts, H2-pulse chemisorption, Active surface area
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URN: urn:nbn:se:ltu:diva-76481DOI: 10.1016/j.solidstatesciences.2019.106035ISI: 000504047900019Scopus ID: 2-s2.0-85073600832OAI: oai:DiVA.org:ltu-76481DiVA, id: diva2:1365036
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Validerad;2019;Nivå 2;2019-10-23 (johcin)

Tillgänglig från: 2019-10-23 Skapad: 2019-10-23 Senast uppdaterad: 2023-09-04Bibliografiskt granskad

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Khan, Inayat Ali

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