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Chemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphere

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dc.contributor.affiliationsFaculty of Science and Technology
dc.contributor.affiliationsUniversiti Kebangsaan Malaysia (UKM)
dc.contributor.affiliationsUniversiti Teknologi MARA (UiTM)
dc.contributor.affiliationsUniversiti Pertahanan Nasional Malaysia (UPNM)
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.authorDzakaria N.en_US
dc.contributor.authorAbu Tahari M.N.en_US
dc.contributor.authorSalleh F.en_US
dc.contributor.authorSamsuri A.en_US
dc.contributor.authorAzizi M.A.H.en_US
dc.contributor.authorSaharuddin T.S.T.en_US
dc.contributor.authorYusop M.R.en_US
dc.contributor.authorIsahak W.N.R.W.en_US
dc.contributor.authorHisham M.W.M.en_US
dc.contributor.authorYarmo M.A.en_US
dc.date.accessioned2024-05-29T02:04:23Z
dc.date.available2024-05-29T02:04:23Z
dc.date.issued2020
dc.descriptionIndones. J. Chem., 2020, 20(1), 105-112en_US
dc.description.abstractThe reduction behavior of nickel oxide (NiO) and zirconia (Zr) doped NiO (Zr/NiO) was investigated using temperature programmed reduction (TPR) using carbon monoxide (CO) as a reductant and then characterized using X-ray diffraction (XRD), nitrogen absorption isotherm using BET technique and FESEM-EDX. The reduction characteristics of NiO to Ni were examined up to temperature 700 °C and continued with isothermal reduction by 40 vol. % CO in nitrogen. The studies show that the TPR profile of doped NiO slightly shifts to a higher temperature as compared to the undoped NiO which begins at 387 °C and maximum at 461 °C. The interaction between ZrO2 with Ni leads to this slightly increase by 21 to 56 °C of the reduction temperature. Analysis using XRD confirmed, the increasing percentage of Zr from 5 to 15% speed up the reducibility of NiO to Ni at temperature 550 °C. At this temperature, undoped NiO and 5% Zr/NiO still show some crystallinity present of NiO, but 15% Zr/NiO shows no NiO in crystalline form. Based on the results of physical properties, the surface area for 5% Zr/NiO and 15% Zr/NiO was slightly increased from 6.6 to 16.7 m2 /g compared to undoped NiO and for FESEM-EDX, the particles size also increased after doped with Zr on to NiO where 5% Zr/NiO particles were 110 ± 5 nm and 15% Zr/NiO 140 ± 2 nm. This confirmed that the addition of Zr to NiO has a remarkable chemical effect on complete reduction NiO to Ni at low reduction temperature (550 °C). This might be due to the formation of intermetallic between Zr/NiO which have new chemical and physical properties.en_US
dc.identifier.doihttps://doi.org/10.22146/ijc.40891
dc.identifier.epage112
dc.identifier.isiWOS:000505070600011
dc.identifier.issn14119420
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85077868051
dc.identifier.spage105
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85077868051&doi=10.22146%2fijc.40891&partnerID=40&md5=c1edc9dec83eb04e18376f6a604e60f2
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/10293
dc.identifier.volume20
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherGadjah Mada Universityen_US
dc.relation.ispartofIndonesian Journal of Chemistryen_US
dc.sourceScopus
dc.subjectnickel;en_US
dc.subjectcarbon monoxide;en_US
dc.subjectzirconia; reduction;en_US
dc.subjecttemperature programmed reductionen_US
dc.titleChemical reduction behavior of zirconia doped to nickel at different temperature in carbon monoxide atmosphereen_US
dc.typeArticleen_US
dspace.entity.typePublication

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