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The thermal-spreading of Sb 2 O 3 was found to be an easy way to create an antimony-rich surface layer on metal oxides, this clean process could be used to produce or to activate the antimony-based catalysts without generation of liquid or gas waste. In prepared mixtures of Sb 2 O 4 and Fe 2 O 3 , the antimony spreading over Fe 2 O 3 ...
The uniform antimony-rich surface layer on Fe 2 O 3 was carried out via thermal spreading of Sb 2 O 3 and Sb 2 O 4 . TG-DTA results indicate that the oxidation temperature of Sb 2 O 3 was decreased ca. 100K due to thermal spreading effect. Although Sb 2 O 4 is almost catalytically inert for oxidation of isobutane and Fe...
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