Iron-based fluorides of tetragonal tungsten bronze structure as potential cathodes for Na-ion batteries

2016 ◽  
Vol 4 (19) ◽  
pp. 7382-7389 ◽  
Author(s):  
Yanlin Han ◽  
Jiulin Hu ◽  
Congling Yin ◽  
Ye Zhang ◽  
Junjie Xie ◽  
...  
Keyword(s):  
Tungsten Bronze ◽  
Reversible Capacity ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze ◽  
Charge Capacity ◽  
Initial Charge ◽  
Iron Based

A iron-based fluoride of tetragonal tungsten bronze structure prepared by topotactically densifying a HTB framework is used as a cathode for Na-ion batteries. K-ion stuffing enables the pristine fluoride to achieve an initial charge capacity of 125 mA h g−1 and reversible capacity of 100–150 mA h g−1.

Dielectric and ferroelectric properties of Sr 4 CaSmTi 3 Nb 7 O 30 with tetragonal tungsten bronze structure

2014 ◽  
Vol 23 (9) ◽  
pp. 097701
Author(s):  
Gao-Shang Gong ◽  
Yu-Jiao Fang ◽  
Shuai Huang ◽  
Chong-Yang Yin ◽  
Song-Liu Yuan ◽  
...  
Keyword(s):  
Ferroelectric Properties ◽  
Tungsten Bronze ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze

Relaxations in new ferroelectric tantalates with tetragonal tungsten bronze structure

2000 ◽  
Vol 238 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Virginie Hornebecq ◽  
Catherine Elissalde ◽  
Jean-Maurice Reau ◽  
Jean Ravez
Keyword(s):  
Tungsten Bronze ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze

ChemInform Abstract: Phases with the Tetragonal Tungsten Bronze Structure Type in the System PbO-Nb2O5-Li2O.

ChemInform ◽  
2010 ◽  
Vol 22 (52) ◽  
pp. no-no
Author(s):  
L. M. RUDKOVSKAYA ◽  
O. N. RAZUMOVSKAYA ◽  
V. S. FILIP'EV ◽  
T. G. LUPEIKO
Keyword(s):  
Tungsten Bronze ◽  
Structure Type ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze

A novel intergrowth structure between ReO3-type and tetragonal tungsten bronze-type in the Zr/Nb/W/O system

1996 ◽  
Vol 52 (6) ◽  
pp. 917-922 ◽  
Author(s):  
F. Krumeich ◽  
G. Liedtke ◽  
W. Mader
Keyword(s):  
Tungsten Bronze ◽  
Regular Structure ◽  
Structure Model ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze ◽  
Transmission Electron ◽  
Monoclinic Lattice ◽  
Lattice Images ◽  
Diffraction Patterns ◽  
First Time

The intergrowth structure of a zirconium niobium tungsten oxide has been determined by transmission electron microscopy methods. Electron diffraction patterns reveal the parameters of the monoclinic lattice: a = 19.0, b = 3.9 and c = 13.8 Å; β = 93.5°. Additional reflections in higher-order Laue zones indicate the presence of a diagonal glide plane, leading to a larger unit cell. A structure model of composition Zr n Nb8−2n W12+n O56 (0.5 < n < 1) has been derived from high-resolution lattice images. Alternating slabs of ReO3-type and of tetragonal tungsten bronze structure are intergrown coherently. Two five-membered rings of MO6 octahedra belonging to adjacent tetragonal tungsten bronze subcells are connected by having two octahedra in common. For the first time, this arrangement of double pentagons is observed in a regular structure.

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