纳米钙钛矿型复合氧化物La_(1-x)Sr_xFeO_(3-λ)晶格氧与催化甲烷完全氧化性能研究

The Role of Lattice Oxygen in Total Oxidation of Methane for Perovskite Type Oxides La 1-x Sr xFeO 3-λ

纳米钙钛矿型复合氧化物Ｌａ１－ｘＳｒｘＦｅＯ３－λ晶格氧与催化甲烷完全氧化性能研究１）钟子宜２）陈立刚颜其洁３）傅献彩（南京大学化学系南京２１００９３）关键词钠米氧化物钙钛矿型复合氧化物甲烷完全氧化氧物种我们在前文［１］曾报导纳米钙钛矿型复合氧化物Ｌ...

Nanometer oxides La 1-x Sr xFeO 3-λ and their large particle size counterparts were comparatively studied for total oxidation of methane. TPR、XPS and nonstoichiometric oxygen(λ) analysis results indicate that lattice oxygen may result in formation of the total oxidation product. And the activation of methane may occur at the Fe 4+ O 2- and Fe 3+ O 2- sites in low and high temperature regions, respectively.