Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 1, Pages 328-332Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp8084793
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Funding
- Center for Nanoscience and Nanotechnology of NSYSU
- National Science Council, Taiwan, ROC [NSC96-2221-E-110-055-MY3]
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TiO2-ZnO powders in a molar ratio of 92:8 were subject to solution annealing via a reactive sintering route prior to X-ray diffraction and transmission electron microscopic studies. Charge-compensating defect clusters and planar faults predominantly parallel to (121) and (132) planes, analogous to the crystallographic shear of nonstoichiometric TinO2n-1 with specific extent of oxygen vacancies, were formed in the Zn-doped TiO2 of the rutile-type structure when quenched from 1300 degrees C in air. Upon annealing at 900 degrees C, an additional phase with 3x(101) commensurate superstructure was formed by an ordering process and Guinier-Preston zones parallel to (100) and (010) were exsolved via anisotropic lattice diffusion.
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