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be selected from a non-limiting list including silica, titanium dioxide (TiO2), zinc oxide (ZnO), Fe2O3, and other metal oxides such as but not limited to NiO, Al2O3, SnO, SnO2, CeO2, ZnO, CdO, RuO2, FeO, CuO, AgO, MnO2, as well as other transition metal oxides.Examples of nanoscaled material include AEROSIL R812, which has a particle size of less than 25 nm according to the specification from th
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