{"title":"Effect of calcination and/or incorporation of trivalent metal ions on the physicochemical properties of nickel oxide catalyst","authors":"M.I. Zaki, S.A.A. Mansour, R.B. Fahim","doi":"10.1016/0376-4583(85)90142-6","DOIUrl":null,"url":null,"abstract":"<div><p>The effect of the calcination and/or the incorporation of Cr, Al or Fe ions in NiO catalysts on the excess oxygen on the surface and the structural and textural properties was investigated using a number of physico-chemical techniques. The results indicated that homogeneous solid solutions were obtained only when the doping level was less than 3 at.% M<sup>3+</sup>. NiOOH species formed topochemically during the hydrothermal decomposition of the parent Ni(OH)<sub>2</sub> at 300 – 400 °C were found to be associated with the maximum surface content of excess oxygen. The excess oxygen species were identified from IR and X-ray photoelectron spectra.</p></div>","PeriodicalId":22037,"journal":{"name":"Surface Technology","volume":"25 3","pages":"Pages 287-296"},"PeriodicalIF":0.0000,"publicationDate":"1985-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0376-4583(85)90142-6","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Technology","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0376458385901426","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
The effect of the calcination and/or the incorporation of Cr, Al or Fe ions in NiO catalysts on the excess oxygen on the surface and the structural and textural properties was investigated using a number of physico-chemical techniques. The results indicated that homogeneous solid solutions were obtained only when the doping level was less than 3 at.% M3+. NiOOH species formed topochemically during the hydrothermal decomposition of the parent Ni(OH)2 at 300 – 400 °C were found to be associated with the maximum surface content of excess oxygen. The excess oxygen species were identified from IR and X-ray photoelectron spectra.
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