Effect of aging and hydrothermal treatment on electrochemical performance of chemically pre-intercalated Na–V–O nanowires for Na-ion batteries

2016 ◽  
Vol 4 (20) ◽  
pp. 7754-7761 ◽  
Author(s):  
Mallory Clites ◽  
Bryan W. Byles ◽  
Ekaterina Pomerantseva
Keyword(s):  
Crystal Structure ◽  
Electrochemical Performance ◽  
Vanadium Oxide ◽  
Hydrothermal Treatment ◽  
Oxide Nanowires

A chemical pre-intercalation approach was used to synthesize Na-containing vanadium oxide nanowires with the bilayered crystal structure for use as Na-ion battery cathodes.

scholarly journals Todorokite-type manganese oxide nanowires as an intercalation cathode for Li-ion and Na-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (128) ◽  
pp. 106265-106271 ◽  
Author(s):  
B. W. Byles ◽  
P. West ◽  
D. A. Cullen ◽  
K. L. More ◽  
E. Pomerantseva
Keyword(s):  
Crystal Structure ◽  
Elevated Temperature ◽  
Manganese Oxide ◽  
Hydrothermal Treatment ◽  
High Yield ◽  
Oxide Nanowires ◽  
Li Ion

Extended hydrothermal treatment at an elevated temperature of 220 °C allowed high yield synthesis of manganese oxide nanowires with a todorokite crystal structure suitable for reversible intercalation of Li+ and Na+ ions.

Effect of solution acidity on the crystallization of polychromates in uranyl-bearing systems: synthesis and crystal structures of Rb2[(UO2)(Cr2O7)(NO3)2] and two new polymorphs of Rb2Cr3O10

2021 ◽  
Vol 236 (1-2) ◽  
pp. 11-21
Author(s):  
Evgeny V. Nazarchuk ◽  
Oleg I. Siidra ◽  
Dmitry O. Charkin ◽  
Stepan N. Kalmykov ◽  
Elena L. Kotova
Keyword(s):  
Crystal Structure ◽  
Aqueous Solutions ◽  
Crystal Structures ◽  
Hydrothermal Treatment ◽  
Ambient Conditions ◽  
Screw Axis ◽  
3D Framework ◽  
Solution Acidity

Abstract Three new rubidium polychromates, Rb2[(UO2)(Cr2O7)(NO3)2] (1), γ-Rb2Cr3O10 (2) and δ-Rb2Cr3O10 (3) were prepared by combination of hydrothermal treatment at 220 °C and evaporation of aqueous solutions under ambient conditions. Compound 1 is monoclinic, P 2 1 / c $P{2}_{1}/c$ , a = 13.6542(19), b = 19.698(3), c = 11.6984(17) Å, β = 114.326(2)°, V = 2867.0(7) Å3, R 1 = 0.040; 2 is hexagonal, P 6 3 / m $P{6}_{3}/m$ , a = 11.991(2), c = 12.828(3) Å, γ = 120°, V = 1597.3(5) Å3, R 1 = 0.031; 3 is monoclinic, P 2 1 / n $P{2}_{1}/n$ , a = 7.446(3), b = 18.194(6), c = 7.848(3) Å, β = 99.953(9)°, V = 1047.3(7) Å3, R 1 = 0.037. In the crystal structure of 1, UO8 bipyramids and NO3 groups share edges to form [(UO2)(NO3)2] species which share common corners with dichromate Cr2O7 groups producing novel type of uranyl dichromate chains [(UO2)(Cr2O7)(NO3)2]2−. In the structures of new Rb2Cr3O10 polymorphs, CrO4 tetrahedra share vertices to form Cr3O10 2− species. The trichromate groups are aligned along the 63 screw axis forming channels running in the ab plane in the structure of 2. The Rb cations reside between the channels and in their centers completing the structure. The trichromate anions are linked by the Rb+ cations into a 3D framework in the structure of 3. Effect of solution acidity on the crystallization of polychromates in uranyl-bearing systems is discussed.

Crystal structure and properties of the new complex vanadium oxide K2SrV3O9

2005 ◽  
Vol 40 (5) ◽  
pp. 800-809 ◽  
Author(s):  
Alexander A. Tsirlin ◽  
Victoria V. Chernaya ◽  
Roman V. Shpanchenko ◽  
Evgeny V. Antipov ◽  
Joke Hadermann
Keyword(s):  
Crystal Structure ◽  
Vanadium Oxide ◽  
Structure And Properties

scholarly journals Synthesis, Crystal Structure and Magnetic Properties of Bixbyite-type Vanadium Oxide Nitrides

2009 ◽  
Vol 64 (3) ◽  
pp. 281-286 ◽  
Author(s):  
Suliman Nakhal ◽  
Wilfried Hermes ◽  
Thorsten Ressler ◽  
Rainer Pöttgen ◽  
Martin Lerch
Keyword(s):  
Crystal Structure ◽  
Vanadium Oxide ◽  
Magnetic Ordering ◽  
Vanadium Oxides ◽  
Detectable Amount ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vanadium Sulfide ◽  
Structure Result ◽  
X Ray Absorption

Ammonolysis of vanadium sulfide leads to the formation of bixbyite-type vanadium oxide nitrides. Small amounts of nitrogen incorporated in the structure result in the stabilization of the bixbyite type not known for vanadium oxides. The crystal structure was investigated using X-ray diffraction and X-ray absorption spectroscopy. At temperatures above 550 °C the powders decompose to corundumtype V2O3 containing no detectable amount of nitrogen. Below 39 K magnetic ordering is observed.

Relation Between Crystal Structure and Electrochemical Performance of LiNi1/3ZnxCo1/3−xMn1/3O2 (0.000 ≤ x ≤ 0.133)

2018 ◽  
Vol 18 (4) ◽  
pp. 2797-2802 ◽  
Author(s):  
Xujun Wang ◽  
Yong Wan ◽  
Ruiqi Wang ◽  
Xiantang Xu ◽  
He Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrochemical Performance
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