1996
DOI: 10.1007/bf00807617
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The influence of an intermediate MoO3 layer on the solid state reaction of cobalt oxide withγ-Al2O3

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Cited by 6 publications
(3 citation statements)
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“…It can be seen that all of the catalysts are reduced in the first region (< 600°C), however, only γ-Al 2 O 3 supported catalysts show further reduction at temperatures higher than 600°C (second region). As derivative peaks at low temperatures are always related to bulk oxides which hardly interact with the support [45], those showing reduction at high temperatures are associated with metal oxides strongly bonded to the alumina support [24]. Therefore, it is suggested that the interaction between Ni (or Fe) with the Al 2 O 3 support was stronger in the case of γ-Al 2 O 3 compared to α-Al 2 O 3 .…”
Section: Product Characterization and Analysismentioning
confidence: 99%
“…It can be seen that all of the catalysts are reduced in the first region (< 600°C), however, only γ-Al 2 O 3 supported catalysts show further reduction at temperatures higher than 600°C (second region). As derivative peaks at low temperatures are always related to bulk oxides which hardly interact with the support [45], those showing reduction at high temperatures are associated with metal oxides strongly bonded to the alumina support [24]. Therefore, it is suggested that the interaction between Ni (or Fe) with the Al 2 O 3 support was stronger in the case of γ-Al 2 O 3 compared to α-Al 2 O 3 .…”
Section: Product Characterization and Analysismentioning
confidence: 99%
“…During the precursor preparation, some Co or Ni atoms can form additional inactive phases such as nickel aluminate, NiAl 2 O 4 ). In the case of NiW catalysts, the formation of active or nonactive species usually depends on the structure of the Ni and W oxide precursors.…”
Section: Introductionmentioning
confidence: 99%
“…The EDS analysis for the example of BSCFMo0.375-(Co/Fe=4), synthesised according to first synthetic approach, is shown in which is reported to start forming from 900 o C [174] , which is very close to the synthesis temperature of 1000 o C for the BSCFM materials. Moreover, the blue color observed at the bottom of the alumina crucibles could be due to the formation of cobalt aluminate (CoAl 2 O 4 ), also known as 'cobalt-blue', and the presence of molybdenum oxide is reported to enhance the cobalt aluminate formation [175] .…”
Section: Energy-dispersive X-ray Analysis (Eds)mentioning
confidence: 99%