Model for the role of oxygen defects in oxygen-defect superconductors

1988 ◽  
Vol 37 (1) ◽  
pp. 525-528 ◽  
Author(s):  
J. W. Halley ◽  
Herbert B. Shore
Keyword(s):  
Oxygen Defect ◽  
Oxygen Defects

Role of oxygen defects in diluted Mn:Ge

2008 ◽  
Vol 78 (8) ◽  
Author(s):  
A. Continenza ◽  
G. Profeta
Keyword(s):  
Oxygen Defects

scholarly journals Role of oxygen defects on the magnetic properties of ultra-small Sn1−xFexO2 nanoparticles

2013 ◽  
Vol 113 (17) ◽  
pp. 17B504 ◽  
Author(s):  
Kelsey Dodge ◽  
Jordan Chess ◽  
Josh Eixenberger ◽  
Gordon Alanko ◽  
Charles B. Hanna ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Oxygen Defects

Oxygen-defect-dependent ferromagnetism and strain modulation in free-standing two-dimensional TiO2 monolayers

2018 ◽  
Vol 20 (42) ◽  
pp. 27176-27184 ◽  
Author(s):  
Lifen Wang ◽  
Gang Zhou ◽  
Yun Shan ◽  
Zhichun Huang ◽  
Lizhe Liu
Keyword(s):  
Magnetic Behavior ◽  
Two Dimensional ◽  
Oxygen Defect ◽  
Free Standing ◽  
Oxygen Defects ◽  
Strain Modulation ◽  
External Strain

In TiO2 monolayers, magnetic behavior can be generated by oxygen defects and can be regulated by external strain.

Correlation Between Tunable Oxygen Defects in TiO2 Nanoflower and Its Photocatalytic Performance for the Degradation of Organic Waste

NANO ◽  
2020 ◽  
Vol 15 (02) ◽  
pp. 2050018
Author(s):  
Cai Chen ◽  
Han Zhang ◽  
Arshid M. Ali ◽  
Hui Zhang
Keyword(s):  
Catalytic Activity ◽  
Degradation Rate ◽  
Surface Defects ◽  
Hydrogen Reduction ◽  
Defect Concentration ◽  
Oxygen Defect ◽  
Surface Oxygen ◽  
Fixed Amount ◽  
Photo Catalytic Activity ◽  
Oxygen Defects

Oxygen defects of nanoflower TiO2 photo-catalyst was fabricated at the presence of hydrogen at different temperatures (100–600∘C) and the concentrations of oxygen defects were firstly quantitatively analyzed by hydrogen programmed temperature reduction techniques (H2-TPR). Total oxygen defect concentration and surface oxygen defect concentration were consistent with XPS and EPR results, respectively. Even at the hydrogen thermal temperature of 600∘C, the shape of TiO2 was still kept as nanoflower structure as characterized by SEM. However, the rutile and anatase coexist in the composition of crystal phase when hydrogen reduction temperature of the TiO2 catalyst reached 400∘C to 600∘C as proved by Raman and XRD results. TiO2 sample with oxygen defects shows excellent photo-catalytic activity for degradation of Direct Blue 78(DB) regardless of ultraviolet light (the maximum degradation rate achieved within 100[Formula: see text]min was 93.27%) or visible light (the maximum degradation rate achieved within 100[Formula: see text]min was 88.25%). The photo-catalytic activity seems to be highly correlated with the surface oxygen defects of TiO2 catalyst. With surface oxygen-defect concentrations increase, the degradation ability on DB was significantly enhanced, while bulk oxygen defects had negligible effect on the photo-catalytic activity. The enhanced photo-catalytic performance of TiO2 with a fixed amount of oxygen defects was attributed to the strong capturing capability of the photo-generated electrons. In addition, the surface defects could also improve the photo-catalytic reaction efficiency.

The role of oxygen defects in a bismuth doped ScVO4 matrix: tuning luminescence by hydrogen treatment

2017 ◽  
Vol 5 (2) ◽  
pp. 314-321 ◽  
Author(s):  
Hai-Shan Zhang ◽  
Fengwen Kang ◽  
Yu-Jun Zhao ◽  
Mingying Peng ◽  
Dang Yuan Lei ◽  
...  
Keyword(s):  
Hydrogen Treatment ◽  
Oxygen Defects

We have theoretically investigated the bismuth doped ScVO4 matrix, where tunable photoemission could be achieved by controlling hydrogen with oxygen defects.

Role of Oxygen Defects on the Photocatalytic Properties of Mg-Doped Mesoporous Ta3N5

ChemSusChem ◽  
2016 ◽  
Vol 9 (12) ◽  
pp. 1403-1412 ◽  
Author(s):  
Yinghao Xie ◽  
Yawei Wang ◽  
Zuofeng Chen ◽  
Xiaoxiang Xu
Keyword(s):  
Photocatalytic Properties ◽  
Oxygen Defects ◽  
Mg Doped

Role of oxygen defects in magnetic property of Cu doped ZnO

2014 ◽  
Vol 615 ◽  
pp. 740-744 ◽  
Author(s):  
Weijing Liu ◽  
Xiaodong Tang ◽  
Zheng Tang ◽  
Fenghong Chu ◽  
Tao Zeng ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Oxygen Defects ◽  
Doped Zno
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