{'fraction_non_alphanumeric': 0.024108003857280617, 'fraction_numerical': 0.01253616200578592, 'mean_word_length': 4.798882681564246, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The Catalytic Activity Relation with the Phase Composition of Bi—Mo Oxide Catalysts

The effect of the thermal treatment on the phase composition of Bi—Mo oxide catalysts at atomic ratio ranging from 0.1—4°/o has been studied. This study had been carried out using DTA, X-ray and IR spectroscopy. It has been shown that bismuth molybdate of the composition BÌ2O3 · 3M0O3 ( -phase) is formed by crystallization of the prepared precipitate. The catalytic activity of the catalysts was measured by the oxidative dehydrogenation of 2:5 dihydrofuran to furan. The concentration of Mos+ was determined by ESR when the catalysts were exposed to the reactant at 300 °C. A correlation between the concentration of the active sites and the Moi+ concentration on the catalyst surface was established. The activation energy as well as the order of the reactant and oxygen were determined following the principle of the differential reactor. It was found that the eligible catalyst composition for catalysis was around the Bi/Mo ratio equal to unity.