Abstract

Features of dry reforming of methane over perovskite-type complex oxide GdFeO₃ synthesized by several methods (solid-phase, citrate–nitrate sol–gel, glycine–nitrate sol–gel syntheses) have been studied. It has been found that the use of the sol–gel method leads to the formation of porous catalysts consisting of nanosized particles. Significant differences in morphology and texture affect the catalytic properties of GdFeO₃. The sample synthesized by the citrate–nitrate sol–gel method mediates the conversion of hydrogen contained the feed methane to molecular hydrogen at a selectivity of 90%. It has been shown that GdFeO₃-based catalysts exhibit a stable on-stream behavior for a long time.

中文翻译：

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GdFeO 3基催化剂上的甲烷干重整

摘要

研究了通过几种方法（固相，柠檬酸-硝酸盐溶胶-凝胶，甘氨酸-硝酸盐溶胶-凝胶合成）合成的钙钛矿型复合氧化物GdFeO ₃上甲烷干重整的特征。已经发现，溶胶-凝胶法的使用导致形成由纳米级颗粒组成的多孔催化剂。形态和织构的显着差异影响GdFeO ₃的催化性能。通过柠檬酸-硝酸盐溶胶-凝胶法合成的样品以90％的选择性介导将进料甲烷中的氢转化为分子氢。已经表明，基于GdFeO ₃的催化剂长时间显示出稳定的在流性能。