Oxygen defect chemistry for the reversible transformation of titanates for sizeable potassium storage

2020 ◽  
Vol 8 (34) ◽  
pp. 17550-17557
Author(s):  
Cheng-Yen Lao ◽  
Qiyao Yu ◽  
Jun Hu ◽  
Neng Li ◽  
Giorgio Divitini ◽  
...  
Keyword(s):  
Thermodynamic Limit ◽  
Defect Chemistry ◽  
Potassium Ion ◽  
Oxygen Defect ◽  
Reversible Transformation ◽  
Layered Titanate ◽  
Kinetic Boundary

An oxygen-deficient loose-layered titanate (K(TiO1.875)4OH (LL-KTO)) is prepared to push the kinetic boundary and approached the thermodynamic limit for potassium-ion batteries.

Introducing a conductive pillar: a polyaniline intercalated layered titanate for high-rate and ultra-stable sodium and potassium ion storage

2020 ◽  
Vol 56 (60) ◽  
pp. 8392-8395 ◽  
Author(s):  
Jiaying Liao ◽  
Qiao Hu ◽  
Jinxiao Mu ◽  
Fei Chen ◽  
Xiaodong He ◽  
...  
Keyword(s):  
Potassium Ion ◽  
High Rate ◽  
Layered Titanate ◽  
Ion Storage ◽  
Sodium And Potassium

An in situ formed polyaniline pillared layered titanate with uniform TiO2 coating for sodium and potassium ion storage is proposed.

scholarly journals Zn and Sb interaction and oxygen defect chemistry in dense SnO2 ceramics co-doped with ZnO and Sb2O5

2014 ◽  
Vol 122 (1426) ◽  
pp. 421-425 ◽  
Author(s):  
Minako HASHIGUCHI ◽  
Isao SAKAGUCHI ◽  
Shunichi HISHITA ◽  
Naoki OHASHI
Keyword(s):  
Defect Chemistry ◽  
Oxygen Defect ◽  
Co Doped

The Oxygen Defect Chemistry of La2−xSrxCuO4−x/2+δ

1990 ◽  
Vol 209 ◽  
Author(s):  
Elizabeth J. Opila ◽  
Harry L. Tuller
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Oxygen Content ◽  
Defect Chemistry ◽  
Oxygen Stoichiometry ◽  
Oxygen Defect ◽  
Defect Model ◽  
Strontium Concentration ◽  
Partial Pressures ◽  
Equilibrium Oxygen

ABSTRACTThe equilibrium oxygen stoichiometry of La2−xSrxCuO4±y (x=O, 0.2, 0.4, and 1.0) has been determined by TGA at temperatures between 800 and 1050°C and oxygen partial pressures between 1 and 10−4 atmospheres. The changes in oxygen content with temperature, oxygen partial pressure, and strontium concentration are evaluated in terms of a defect model.

scholarly journals Modified Oxygen Defect Chemistry at Transition Metal Oxide Heterostructures Probed by Hard X-ray Photoelectron Spectroscopy and X-ray Diffraction

2018 ◽  
Vol 30 (10) ◽  
pp. 3359-3371 ◽  
Author(s):  
Yan Chen ◽  
Dillon D. Fong ◽  
F. William Herbert ◽  
Julien Rault ◽  
Jean-Pascal Rueff ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Photoelectron Spectroscopy ◽  
Transition Metal Oxide ◽  
Defect Chemistry ◽  
Oxygen Defect ◽  
X Ray Diffraction ◽  
Oxide Heterostructures ◽  
X Ray

Dispersion-corrected DFT investigation on defect chemistry and potassium migration in potassium-graphite intercalation compounds for potassium ion batteries anode materials

Carbon ◽  
2016 ◽  
Vol 107 ◽  
pp. 885-894 ◽  
Author(s):  
Zhenming Xu ◽  
Xiaojun Lv ◽  
Jiangan Chen ◽  
Liangxing Jiang ◽  
Yanqing Lai ◽  
...  
Keyword(s):  
Anode Materials ◽  
Defect Chemistry ◽  
Potassium Ion ◽  
Intercalation Compounds ◽  
Graphite Intercalation Compounds ◽  
Graphite Intercalation

Controlling oxygen defect chemistry at electrolyte surface of intermediate temperature solid oxide fuel cells

2021 ◽  
Vol 509 ◽  
pp. 230351
Author(s):  
Seo Ju Kim ◽  
Jongmin Baek ◽  
Mingi Choi ◽  
Jongseo Lee ◽  
Wonyoung Lee
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Defect Chemistry ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Oxygen Defect ◽  
Electrolyte Surface

Dislocations, Ordering and Antiferromagnetic Domains in MnO

1970 ◽  
Vol 28 ◽  
pp. 522-523
Author(s):  
D. J. Barber ◽  
R. G. Evans
Keyword(s):  
Electron Diffraction ◽  
Single Crystal ◽  
Optical Microscopy ◽  
Defect Chemistry ◽  
Magnetic Structures ◽  
Optically Transparent ◽  
Magnetic Features ◽  
Antiferromagnetic Domains

Manganese (II) oxide, MnO, in common with CoO, NiO and FeO, possesses the NaCl structure and shows antiferromagnetism below its Neel point, Tn∼ 122 K. However, the defect chemistry of the four oxides is different and the magnetic structures are not identical. The non-stoichiometry in MnO2 small (∼2%) and below the Tn the spins lie in (111) planes. Previous work reported observations of magnetic features in CoO and NiO. The aim of our work was to find explanations for certain resonance results on antiferromagnetic MnO.Foils of single crystal MnO were prepared from shaped discs by dissolution in a mixture of HCl and HNO3. Optical microscopy revealed that the etch-pitted foils contained cruciform-shaped precipitates, often thick and proud of the surface but red-colored when optically transparent (MnO is green). Electron diffraction and probe microanalysis indicated that the precipitates were Mn2O3, in contrast with recent findings of Co3O4 in CoO.

Myrsinane and related diterpenes from Euphorbia falcata with selective potassium ion channel activity

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
A Vasas ◽  
P Orvos ◽  
L Tálosi ◽  
P Forgo ◽  
G Pinke ◽  
...  
Keyword(s):  
Ion Channel ◽  
Potassium Ion ◽  
Channel Activity ◽  
Potassium Ion Channel

The impact of metal ions doping on the defect chemistry of methylammonium lead iodide

2018 ◽  
Author(s):  
Nga Phung ◽  
Antonio Abate ◽  
Daniele Meggiolaro ◽  
Filippo De Angelis ◽  
Roberto Felix Duarte ◽  
...  
Keyword(s):  
Metal Ions ◽  
Defect Chemistry ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide ◽  
The Impact
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