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- W2391427272 abstract "The catalysts of active carbon supported Fe or Ni with K,Mo,Co as the promoters were prepared by stepwise-impregnationdirect-pyrolysispre-reduction methods.Performances of the prepared catalysts in ammonia decomposition were studied.It was found that the Fe-containing catalysts possessed a much better performance than the Ni-containing catalysts,and the Fe-Mo/C appeared to be the best one,over which ammonia could be decomposed almost completely at 650 ℃.The catalytic activity of the promoters over the Fe/C catalysts showed an order of MoKCo,whereas little promotion by the promoter K and Mo over the Ni/C catalysts was observed.XRD studies showed that the main crystal phases in Fe-Mo/C catalyst were FeMo,Fe_2(MoO_4)_3 and Fe_2O_3 with a trace amount of Fe_3O_4 and graphitic carbon.Mainly the phases of α-Fe and C appeared while those of Fe_2(MoO_4)_3,Fe_2O_3,Fe_3O_4 disappeared after the ammonia decomposition reaction.It indicated that some iron compounds were reduced and more active carbon were graphitized.The formation of FeMo constituted the main reason of the high catalytic activity of Fe-Mo/C catalyst." @default.
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- W2391427272 date "2006-01-01" @default.
- W2391427272 modified "2023-09-25" @default.
- W2391427272 title "Study on Ammonia Decomposition Over Active Carbon Supported Ni or Fe" @default.
- W2391427272 hasPublicationYear "2006" @default.
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