Influence of La and Si promoters on the anaerobic heterogeneous catalytic decomposition of ammonium dinitramide (ADN) via alumina supported iridium active sites

buir.contributor.authorKurt, Merve
buir.contributor.authorKap, Zeynep
buir.contributor.authorSenol, Sinem
buir.contributor.authorErcan, Kerem Emre
buir.contributor.authorSika-Nartey, Abel Tetteh
buir.contributor.authorKocak, Yusuf
buir.contributor.authorKoc, A.
buir.contributor.authorEsiyok, H.
buir.contributor.authorCaglayan, B. S.
buir.contributor.authorAksoylu, A. E.
buir.contributor.authorOzensoy, Emrah
buir.contributor.orcidKurt, Merve|0000-0003-0286-9618
buir.contributor.orcidKap, Zeynep|0000-0002-2102-4744
buir.contributor.orcidSenol, Sinem|0000-0002-8597-5071
buir.contributor.orcidErcan, Kerem Emre|0000-0003-4650-7977
buir.contributor.orcidSika-Nartey, Abel Tetteh|0000-0002-5327-844X
buir.contributor.orcidKocak, Yusuf|0000-0003-4511-1321
buir.contributor.orcidOzensoy, Emrah|0000-0003-4352-3824
dc.citation.epage11en_US
dc.citation.spage1en_US
dc.citation.volumeNumber632en_US
dc.contributor.authorKurt, Merve
dc.contributor.authorKap, Zeynep
dc.contributor.authorSenol, Sinem
dc.contributor.authorErcan, Kerem Emre
dc.contributor.authorSika-Nartey, Abel Tetteh
dc.contributor.authorKocak, Yusuf
dc.contributor.authorKoc, A.
dc.contributor.authorEsiyok, H.
dc.contributor.authorCaglayan, B. S.
dc.contributor.authorAksoylu, A. E.
dc.contributor.authorOzensoy, Emrah
dc.date.accessioned2023-02-14T11:21:58Z
dc.date.available2023-02-14T11:21:58Z
dc.date.issued2022-02-25
dc.departmentDepartment of Chemistryen_US
dc.description.abstractStructural origins of the promotional effects of the La or Si doping of alumina supported Ir catalysts in anaerobic ammonium dinitramide decomposition were investigated. Our findings reveal that Ir/Al2O3 and Ir/La-Al2O3 favorably lower the onset temperature of the ADN decomposition reaction, whereas Si doping boosts the pressure generation during the reaction. Formation of mostly metallic Ir nanoparticles for Ir/Al2O3 and Ir/La-Al2O3 enables the lowering of the activation energy of the reaction. On the other hand, enhancement due to Si promotion is associated to the generation of small oxidic Irnx+ clusters which are strongly interacting with the SiOx-AlOx surface domains of the support material. Fundamental structure-functionality relationships unraveled in the current work may allow design of novel catalytic systems for aerospace monopropellant propulsion systems with higher performance by simultaneous exploitation of Ir active sites with different electronic properties.en_US
dc.description.provenanceSubmitted by Bilge Kat (bilgekat@bilkent.edu.tr) on 2023-02-14T11:21:58Z No. of bitstreams: 1 Influence_of_La_and_Si_promoters_on_the_anaerobic_heterogeneous_catalytic_decomposition_of_ammonium_dinitramide_(ADN)_via_alumina_supported_iridium_active_sites.pdf: 5251686 bytes, checksum: aa3dba2354691fc9cf8f50d512dbf6f2 (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-14T11:21:58Z (GMT). No. of bitstreams: 1 Influence_of_La_and_Si_promoters_on_the_anaerobic_heterogeneous_catalytic_decomposition_of_ammonium_dinitramide_(ADN)_via_alumina_supported_iridium_active_sites.pdf: 5251686 bytes, checksum: aa3dba2354691fc9cf8f50d512dbf6f2 (MD5) Previous issue date: 2022-02-25en
dc.identifier.doi10.1016/j.apcata.2022.118500en_US
dc.identifier.eissn1873-3875
dc.identifier.issn0926-860X
dc.identifier.urihttp://hdl.handle.net/11693/111256
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://dx.doi.org/10.1016/j.apcata.2022.118500en_US
dc.source.titleApplied Catalysis A: Generalen_US
dc.subjectADNen_US
dc.subjectAmmonium dinitramideen_US
dc.subjectCatalytic decompositionen_US
dc.subjectHydrazineen_US
dc.subjectIridiumen_US
dc.subjectMonopropellanten_US
dc.titleInfluence of La and Si promoters on the anaerobic heterogeneous catalytic decomposition of ammonium dinitramide (ADN) via alumina supported iridium active sitesen_US
dc.typeArticleen_US

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