TY - JOUR
T1 - The electron-beam-induced reduction of transition metal oxide surfaces to metallic lower oxides
AU - Smith, David
AU - McCartney, Martha
AU - Bursill, L. A.
N1 - Funding Information:
This work was undertaken in the National Facility for High-Resolution Electron Microscopy, within the Center for Solid State Science at Arizona State University, established with support from NSF Grant DMR-8306501. Financial support for this research from the Office for Naval Research MAPS program is gratefully acknowledged. We are grateful to B. Miner for her assistance in producing fig. 5, and to Dr. M. Skiff for useful discussions.
PY - 1987
Y1 - 1987
N2 - The clean surfaces of several maximally valent transition metal oxides, namely TiO2, Nb2O5, V2O5 and WO3, have been reduced to the corresponding binary oxide during extended observation inside a 400 keV high-resolution electron microscope. Selected-area electron diffraction patterns and optical transforms direct from the high-resolution lattice images were used to identify the oxide, while electron energy loss spectra from a sample of V2O5 eliminated the possibility that the isostructural carbide had been formed. These reduced binary oxides have a defective rocksalt structure, and they are metallic in nature, which may thereby stifle further electron-stimulated desorption of oxygen.
AB - The clean surfaces of several maximally valent transition metal oxides, namely TiO2, Nb2O5, V2O5 and WO3, have been reduced to the corresponding binary oxide during extended observation inside a 400 keV high-resolution electron microscope. Selected-area electron diffraction patterns and optical transforms direct from the high-resolution lattice images were used to identify the oxide, while electron energy loss spectra from a sample of V2O5 eliminated the possibility that the isostructural carbide had been formed. These reduced binary oxides have a defective rocksalt structure, and they are metallic in nature, which may thereby stifle further electron-stimulated desorption of oxygen.
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U2 - 10.1016/0304-3991(87)90239-7
DO - 10.1016/0304-3991(87)90239-7
M3 - Article
AN - SCOPUS:0023559430
SN - 0304-3991
VL - 23
SP - 299
EP - 303
JO - Ultramicroscopy
JF - Ultramicroscopy
IS - 3-4
ER -