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A titanium dioxide supported VPO(VPO/TiO2) catalyst for NH3-SCR de-NOx was prepared. The NH3-SCR catalytic activity of VPO/TiO2 was tested and a corresponding mechanism was investigated by Density Functional Theory and in situ FTIR spectra. The results showed that the catalytic activity of VPO/TiO2 was the highest when the molar ratio of P to V was 1/5, weight percentage of active ingredient was 10...
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