Center for Reticular Chemistry, DOE-UCLA Institute for Genomics and Proteomics, University of California-Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, USA.
Inorg Chem. 2011 Aug 15;50(16):7388-90. doi: 10.1021/ic201396m. Epub 2011 Jul 18.
A catalytic system combining the high activity of homogeneous catalysts and the ease of use of heterogeneous catalysts for methane activation is reported. The vanadium-containing metal-organic frameworks (MOFs) MIL-47 and MOF-48 are found to have high catalytic activity and chemical stability. They convert methane selectively to acetic acid with 70% yield (490 TON) based on K(2)S(2)O(8) as an oxidant. Isotopic labeling experiments showed that two methane molecules are converted to the produced acetic acid. The MOF catalysts are reusable and remain catalytically active for several recycling steps without losing their crystalline structures.
一种催化体系结合了均相催化剂的高活性和多相催化剂的易用性，用于甲烷的活化。研究发现，含钒的金属有机骨架（MOFs）MIL-47 和 MOF-48 具有高催化活性和化学稳定性。它们以 K(2)S(2)O(8) 为氧化剂，将甲烷选择性地转化为乙酸，产率为 70%（490 TON）。同位素标记实验表明，两个甲烷分子转化为生成的乙酸。MOF 催化剂可重复使用，并在几个回收步骤中保持催化活性，而不会失去其晶体结构。
