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Catalytic decomposition of N2O over RhOx supported on metal phosphates

机译：负载在金属磷酸盐上的RhOx上N2O的催化分解

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RhOx/M-P-O (M = Mg, Al, Ca, Fe, Co, Zn, La) catalysts were tested in N2O decomposition. RhOx/Ca-P-O showed the highest activity, achieving complete N2O conversion at 300 degrees C. RhOx/La-P-O is the second most active catalyst, achieving almost complete conversion at 375 degrees C. RhOx/Mg-P-O, RhOx/Co-P-O, and RhOx/Al-P-O showed lower activities, whereas RhOx/Fe-P-O and RhOx/Zn-P-O were completely inactive. The high activity of RhOx/Ca-P-O is ascribed to the presence of very small RhOx particles, more basic sites, and the easiness of desorbing O-2 at low temperatures. The inhibiting effects of co-fed O-2 and/ or H2O on the catalytic activity of RhOx/Ca-P-O are reversible. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：在N2O分解中测试了RhOx / M-P-O（M = Mg，Al，Ca，Fe，Co，Zn，La）催化剂。 RhOx / Ca-PO表现出最高的活性，在300摄氏度下实现了完全的N2O转化。RhOx / La-PO是第二大活性催化剂，在375摄氏度下实现了几乎完全的转化。RhOx / Mg-PO，RhOx / Co- PO和RhOx / Al-PO的活性较低，而RhOx / Fe-PO和RhOx / Zn-PO则完全没有活性。 RhOx / Ca-P-O的高活性归因于存在非常小的RhOx颗粒，更多的碱性位点以及在低温下易于解吸O-2。共同喂食O-2和/或H2O对RhOx / Ca-P-O催化活性的抑制作用是可逆的。 （C）2015韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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