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Two different crystals of Fe2O3 prepared with and without KNO3 were respectively used as magnetic cores for supporting CaO, which were designated as CaO@γ-Fe2O3 and CaO@ hematite Fe2O3. The comparison of catalytic performance of both catalysts was studied by transesterification of soybean oil and methanol. The differences of two catalysts samples in the aspects of morphology, magnetism and basicity...
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