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Electrochemical Studies and Images Performance ofLa2O3/TiO2 for EnergyStorage

Published online by Cambridge University Press:  13 January 2016

C.G. Nava-Dino ,
N.L. Mendez-Mariscal ,
G. Llerar-Meza ,
R.A. Acosta-Chavéz ,
M.E. Lopéz-Ochoa ,
J.P. Flores-De los Ríos  and
A. Martínez-Villafañe
C.G. Nava-Dino*
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
N.L. Mendez-Mariscal
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
G. Llerar-Meza
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
R.A. Acosta-Chavéz
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
M.E. Lopéz-Ochoa
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
J.P. Flores-De los Ríos
Affiliation:
Universidad Autónoma de Chihuahua, Facultad de Ingeniería. Chihuahua, Circuito No 1., Campus Universitario 2 Chihuahua, Chih. C.P. 31125, México.
A. Martínez-Villafañe
Affiliation:
Departamento de Integridad y Diseño de Materiales Compuestos. Centro de Investigación en Materiales Avanzados. S.C. CIMAV. Miguel de Cervantes No 120 Complejo Industrial Chihuahua, C.P 31109, Chihuahua, Chih. México
*
*(Email: ndino@uach.mx)
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Abstract

Powders of La2O3 were mixed with mechanical ball-millingtechnique (MA) adding TiO2, to improve the electrochemicalperformance as a storage material. Microstructures, morphologies andelectrochemical results were investigated using TEM, X-ray diffraction (XRD),Cyclic Voltammetry and Potentiodynamic studies. Results showed that, the sampleswith TiO2 content affected the capacity of response. The alloysexhibit a superior capacity and stability adding TiO2. The millingball to powder weight ratio was kept 5 to 1 for all experimental runs. Millingintervals were 0, 2 and 4 hrs; using alternate cycles of 30 minutes milling and30 min resting. The nanostructure TiO2 powder, improves the samplesto design a better electrode. TiO2 has significant influence onelectrochemical performance of electrodes. Electrochemical experiments wereperformed on ACM Instruments Gill AC and a typical three electrode setup wasconstructed to measure the electrochemical properties of the working electrode.Here, platinum was used as the counter electrode and calomel was used as thereference electrode. Structures of the samples were analyzed by digital imagetools.

Keywords

energetic materialfractalalloy

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Type
Articles
Information
MRS Advances , Volume 1 , Issue 6: Energy and Sustainability , 2016 , pp. 395 - 402
Copyright
Copyright © Materials Research Society 2016 

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References

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