Nitrous oxide decomposition active site on Ni-MgO catalysts characterized by X-ray absorption fine structure spectroscopy

Y. Izumi, T. Shimizu, T. Kobayashi, and K. Aika,
Chem. Commun., 1053 -1054 (2000).

 

A contracted Ni²⁺ coordination site distorted in the direction of Ni•••Mg and Ni•••Ni was found to be responsible for catalytic N₂O decomposition when the Ni²⁺ is diluted in a MgO matrix (Ni²⁺/Mg²⁺ atomic ratio ~ 1.0) based on a local structure study by nickel K-edge X-ray absorption fine structure spectroscopy.