M. A. Newton等人通过原位XAS研究了多种分子筛负载的Cu基催化剂催化CH4选择性氧化制甲醇反应过程中Cu的价态变化与生成甲醇量的定量关系,他们发现其中的Cu(I)与甲醇的形成由直接关系,说明甲烷氧化生成甲醇涉及到Cu(II)/Cu(I)介导的2电子过程,
Mark A. Newton*, Jeroen A. van Bokhoben*, et al. On the Mechanism Underlying the Direct Conversion of Methane to Methanol by Copper Hosted in Zeolites; Braiding Cu K-Edge XANES and Reactivity Studies. J. Am. Chem. Soc., DOI: 10.1021/jacs.8b05139
https://pubs.acs.org/doi/10.1021/jacs.8b05139