2-Propanol decomposition on La2MnMO6 (M  Co, Ni, Cu) perovskites

R. Radha, C.S. Swamy
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引用次数: 7

Abstract

Perovskite catalysts of the type La2MnMO6 (M  Co, Ni, Cu) were synthesized by means of a ceramic technique. Single-phase formation was checked by means of X-ray diffraction using Cu Kα radiation. Electrical conductivity measurements were carried out with a standard two-probe cell. The catalytic activity of the perovskites was tested for the decomposition of 2-propanol in the temperature range 200–300 °C in a fixed-bed flow type of reactor. All the perovskites promote dehydrogenation of the alcohol. A possible mechanism for the reaction is proposed by studying the effect of products on the reaction rate and from the variations in the electrical conductivity of the pelletized catalysts in the reactant and product atmospheres.

La2MnMO6 (MCo, Ni, Cu)钙钛矿上2-丙醇分解
采用陶瓷法制备了La2MnMO6型钙钛矿催化剂(MCo, Ni, Cu)。用Cu Kα辐射x射线衍射检查了单相形成。电导率测量是用标准的双探头电池进行的。在固定床流反应器中,在200 ~ 300℃的温度范围内测试了钙钛矿对2-丙醇分解的催化活性。所有的钙钛矿都促进醇的脱氢。通过研究生成物对反应速率的影响以及颗粒催化剂在反应物和生成物气氛中电导率的变化,提出了反应的可能机理。
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