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ZrO2 was treated with 10% SO2-4 from different metal sulfate precursors for methanol dehydration to dimethyl ether. All the samples exhibited tetragonal phase and no diffraction peaks corresponding to metal sulfates or metal oxides were observed. The FT-IR results revealed that there were different interactions between sulfate and ZrO2, and this had a great effect on the surface area of the samples...
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