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An attempt to selectively oxidize methane over supported gold catalysts

机译:尝试在负载的金催化剂上选择性氧化甲烷

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摘要

The potential of supported gold catalysts for the selective gas-phase oxidation of methane to methanol with molecular oxygen was investigated. A broad range of supported gold-based catalyst materials was synthesized using reducible and non-reducible support materials. Although the formation of small gold nanoparticles was established for all catalyst materials, only a very low activity for the total oxidation of methane was observed, at temperatures[250 C. Since no traces of partial oxidation products, such as methanol, formaldehyde, formic acid, methyl formate, dimethyl ether and CO, were observed it was concluded that supported gold catalysts are not able to selectively oxidize methane to methanol under these experimental conditions.
机译:研究了负载型金催化剂在利用分子氧将甲烷选择性气相氧化为甲醇中的潜力。使用可还原和不可还原的载体材料合成了多种负载的金基催化剂材料。尽管已为所有催化剂材料确定了形成小金纳米颗粒的形式,但在温度[250°C]下,仅观察到了甲烷完全氧化的极低活性。由于没有痕量的部分氧化产物,例如甲醇,甲醛,甲酸观察到甲酸甲酯,二甲醚和CO,可以得出结论,在这些实验条件下,负载型金催化剂无法将甲烷选择性氧化为甲醇。

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