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V_2O_5作为催化剂极其普遍地用于SO_2氧化为SO_3和有机物的氧化反应中。为提高其选择性和催化活性,往往与其他辅助催化剂如K_2SO_4、K_2S_2O_7、MoO_3、WO_3及P_2O_5等合并使用。最近В.Б.卡赞斯基等测得了某些V_2O_5体系催化剂的电子磁共振谱,作者等继研究V_2O_5-K_2S_2O_8体系电子磁共振谱之后,又探讨了V_2O_5-K_2SO_4、V_2O_5-KHSO_4及V_2O_5-K_2S_2O_7等体系的磁共振谱。实验部分:1.样品制备:取化学纯的V_2O_5分别与K_2SO_4、KHSO_4及K_2S_2O_7按表1-3中的比例混合均匀后,于500℃
V_2O_5 as a catalyst is extremely commonly used in the oxidation of SO_2 to SO_3 and organic compounds. In order to improve its selectivity and catalytic activity, it is often used in combination with other auxiliary catalysts such as K 2 SO 4, K 2 S 2 O 7, MoO 3, WO 3 and P 2 O 5. Recent VK Kazanski et al. Measured the electron-magnetic resonance spectra of certain V 2 O 5 catalysts. Following the investigation of the EMR spectra of the V 2 O 5 -K 2 S 2 O 8 system, the authors discussed the effects of V 2 O 5 -K 2 SO 4, V 2 O 5 -KHSO 4 and V 2 O 5- K_2S_2O_7 system such as the magnetic resonance spectroscopy. Experimental part: 1. Sample preparation: take chemically pure V_2O_5 and K_2SO_4, KHSO_4 and K_2S_2O_7 according to the proportion of Table 1-3 uniformly mixed at 500 ℃