Rationalizing the Effect of Oxygen Vacancy on Oxygen Electrocatalysis in Li–O 2 Battery

Small ◽  
2020 ◽  
Vol 16 (24) ◽  
pp. 2001812 ◽  
Author(s):  
Jiabao Li ◽  
Chaozhu Shu ◽  
Chunhai Liu ◽  
Xianfei Chen ◽  
Anjun Hu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Effect Of Oxygen

Effect of oxygen vacancy on electronic structure and optical spectra of SrO crystal

2021 ◽  
Vol 133 ◽  
pp. 105940
Author(s):  
Ru-xi Sun ◽  
Ting-yu Liu ◽  
Chun-yu Shi ◽  
Jia-mei Song ◽  
Kai-li Wu
Keyword(s):  
Electronic Structure ◽  
Oxygen Vacancy ◽  
Optical Spectra ◽  
Effect Of Oxygen

Effect of oxygen vacancy on Sb3+, Nb3+ and V3+ doped KTaO3 compounds

Optik ◽  
2019 ◽  
Vol 178 ◽  
pp. 467-477 ◽  
Author(s):  
İsmail Yücel ◽  
Seyfettin Çakmak
Keyword(s):  
Oxygen Vacancy ◽  
Effect Of Oxygen

The Effect of Oxygen Vacancies on the Dielectric Responses of BaTiO3 Based Ceramics in the Ultra-Wide Frequency Range

2011 ◽  
Vol 485 ◽  
pp. 15-18 ◽  
Author(s):  
Youn Kyu Choi ◽  
Takuya Hoshina ◽  
Hiroaki Takeda ◽  
Jong Min Oh ◽  
Takaaki Tsurumi
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
Wide Frequency Range ◽  
Annealing Conditions ◽  
Mass Fractions ◽  
Xrd Patterns ◽  
Effect Of Oxygen ◽  
Lattice Hardening ◽  
Dipole Polarization ◽  
Ionic Polarization

The effect of oxygen vacancies and their migrations on the dielectric responses of BaTiO3 (BT) ceramics and (Ba, Ca)(Ti, Zr)O3 (BCTZ) ceramics was studied using wideband dielectric spectroscopy. Both dipole and ionic polarization of BT ceramics after annealing in a reducing atmosphere markedly decreased. To elucidate the decrease of dipole and ionic polarization, we observed the domain width and the crystal structure of BT ceramics annealed in different PO2. The mass fractions of constituted phases in 90o domain were calculated using the refinement of XRD patterns to explain the degradation of ionic polarization by oxygen vacancies. From the results above, we judged that the decrease of dipole polarization was due to the domain wall clamping by oxygen vacancies, while that of ionic polarization was attributable to the lattice hardening by the incorporation of oxygen vacancies into the BT lattice. In the case of BCTZ ceramics, dipole polarization showed the same way as BT ceramics with annealing conditions but the ionic polarization was independent of PO2 in annealing because of anti-reducing behavior of BCTZ ceramics. On the basis of the effect of oxygen vacancy in BT ceramics and BCTZ ceramics, we could clarify the oxygen vacancy migration in BCTZ ceramics under high direct-current voltage (DCV).

Effect of oxygen vacancy on electronic structure and electrochemical performance of MnMoO4: Computational simulation and experimental verification

2022 ◽  
Author(s):  
Xiaoli Li ◽  
Pengxi Li ◽  
Fangfang Wei ◽  
Xuemin Wang ◽  
Weiwen Han ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Hydrothermal Synthesis ◽  
Oxygen Vacancy ◽  
Electrochemical Performance ◽  
Specific Surface ◽  
Surface Area ◽  
Experimental Verification ◽  
Reduction Method ◽  
Computational Simulation ◽  
Effect Of Oxygen

Porous nanopetal of MnMoO4 with oxygen vacancy is prepared by hydrothermal synthesis and hydrogenation reduction method. The MnMoO4-OV porous nanopetal has a higher specific surface area together with a more...

Motivating visible light photocatalytic activity of ultrathin Bi2O2(OH)xCl2−x solid solution with exposed {001} facets by the co-effect of oxygen vacancy and OH replacement

Nanoscale ◽  
2018 ◽  
Vol 10 (32) ◽  
pp. 15294-15302 ◽  
Author(s):  
Xiaoyong Wu ◽  
Kaiqi Li ◽  
Yuan Li ◽  
Gaoke Zhang
Keyword(s):  
Solid Solution ◽  
Photocatalytic Activity ◽  
Oxygen Vacancy ◽  
Visible Light ◽  
Visible Light Photocatalytic Activity ◽  
Effect Of Oxygen ◽  
Visible Light Photocatalytic

The visible light photocatalytic activity of an ultrathin Bi2O2(OH)xCl2−x solid solution with an exposed {001} facet was boosted by adjusting the concentrations of oxygen vacancy and OH in it.

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