Periana RA, Taube DJ, Gamble S, Taube H, Satoh T, Fujii H
Catalytica Advanced Technologies Inc., 430 Ferguson Drive, Mountain View, CA 94043, USA.
Science. 1998 Apr 24;280(5363):560-4. doi: 10.1126/science.280.5363.560.
Platinum catalysts are reported for the direct, low-temperature, oxidative conversion of methane to a methanol derivative at greater than 70 percent one-pass yield based on methane. The catalysts are platinum complexes derived from the bidiazine ligand family that are stable, active, and selective for the oxidation of a carbon-hydrogen bond of methane to produce methyl esters. Mechanistic studies show that platinum(II) is the most active oxidation state of platinum for reaction with methane, and are consistent with reaction proceeding through carbon-hydrogen bond activation of methane to generate a platinum-methyl intermediate that is oxidized to generate the methyl ester product.
据报道，铂催化剂可在大于70%的基于甲烷的单程产率下，将甲烷直接低温氧化转化为甲醇衍生物。这些催化剂是源自双二嗪配体家族的铂配合物，它们对于将甲烷的碳氢键氧化以生成甲酯具有稳定性、活性和选择性。机理研究表明，铂(II)是铂与甲烷反应的最具活性的氧化态，并且与通过甲烷的碳氢键活化生成铂-甲基中间体进而氧化生成甲酯产物的反应过程一致。
