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BIBTEX RIS

Unexpected Stabilization of α -Ni(OH) 2 Nanoparticles in GO Nanocomposites

2018; Hindawi Publishing Corporation; Volume: 2018; Linguagem: Inglês

10.1155/2018/5735609

ISSN

1687-4129

Autores

Josué M. Gonçalves, Kamilla M. Alves, Manuel F. Gonzalez-Huila, Alfredo Duarte, Paulo Roberto Martins, Koiti Araki,

Tópico(s)

Advancements in Battery Materials

Resumo

Large specific charge capacity Ni(OH) 2 @GO nanocomposites, able to withstand high current densities and more than 500 redox cycles without significant loss of charge storage capacity, were realized thanks to unexpected stabilization of electrochemically active α -Ni(OH) 2 nanoparticles by GO and were characterized by TEM, XRD, FTIR, TXRF, and confocal Raman microscopy. Stable and adherent films with low electric resistance, able to withstand current densities as high as 100 A·g −1 , were generated, as demonstrated by CV, EIS, and galvanostatic charge-discharge measurements, showing good perspectives as electrode material for hybrid energy storage devices.

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