Artículo
Electrochemical performance comparison of MWCNTs/Ni (OH)2 composite materials by two preparation routes
Fecha de publicación:
08/2017
Editorial:
Springer
Revista:
Journal of Solid State Electrochemistry (print)
ISSN:
1432-8488
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Carbon materials are used to improve the nickel hydroxide electrode capacity in rechargeable alkaline batteries. Herein, we present the preparation of multiwall carbon nanotubes/nickel hydroxide composites (MWCNTs/Ni (OH)2) by two different routes. The first method consists of the direct incorporation of MWCNTs in the active material, and the second is based on the hydrothermal synthesis of β-nickel hydroxide, where MWCNTs are added to the precursor solutions. The electrochemical properties of the prepared positive electrodes containing MWCNTs/Ni (OH)2 composites are studied. Electrochemical results indicate that the active material with MWCNTs incorporated before the hydrothermal synthesis is capable of delivering a higher discharge capacity and exhibits a better reversibility than those composites prepared with MWCNTs after the hydrothermal route.
Palabras clave:
Carbon Nanotubes
,
Ni-Mh Batteries
,
Nickel Hydroxide
,
Positive Electrode
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Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Citación
Ortiz, Mariela Gisela; Castro, Elida Beatriz; Real, Silvia Graciela; Electrochemical performance comparison of MWCNTs/Ni (OH)2 composite materials by two preparation routes; Springer; Journal of Solid State Electrochemistry (print); 21; 8; 8-2017; 2339-2347
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