Direct Imaging of the MoVTeNbO M1 Phase Using An Aberration-Corrected High-Resolution Scanning Transmission Electron Microscope

摘要

Selective oxidation catalysis is crucial to society,resulting in about 25% of all important organic chemicals and intermediates used to make consumer and industrial products.'11 The development of new and improved catalysts for C2-CA conversions is driven by the desire to replace existing olefin-based processes with cheaper paraffin-based ones.For the selective oxidation and ammoxidation of propane,several families of vanadium-containing oxide materials,such as the Al-Sb-V-W-O system,the Mo-V-W-O system,the Mo-V-Nb-Sb-O system,and the Mo-V-Nb-Te-O system have been identified as promising catalysts for acrylic acid and acrylonitrile production,respectively.