The Synergistic Effect of Oxygen Vacancy and Carbon Interface Engineering in Hollow Cerium Oxide to Achieve Enhanced Oxygen Reduction Performance

2021 ◽  
Author(s):  
Liang Lv ◽  
Yi-Ru Hao ◽  
Niankun Guo ◽  
Jing Sun ◽  
Tianshan Song ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Synergistic Effect ◽  
Oxygen Reduction ◽  
Cerium Oxide ◽  
Interface Engineering ◽  
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

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 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).

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