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Uniform urchin-like nickel cobaltite microspherical superstructures constructed by one-dimension nanowires and their application for electrochemical capacitors

A novel two-step synthetic strategy was proposed to synthesize urchin-like nickel cobaltite (NiCo2O4) microspherical hierarchical superstructures constructed by one-dimension nanowires: hydrothermal precipitating (Ni, Co) carbonate hydroxide followed by calcinating process. Electrochemical data reve... Full description

Journal Title: Electrochimica Acta Oct 30, 2012, Vol.81, pp.172-178
Main Author: Wu, Tian
Other Authors: Li, Jiaoyang , Hou, Linrui , Yuan, Changzhou , Yang, Long , Zhang, Xiaogang
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: © ProQuest LLC All rights reserved
ID: ISSN: 0013-4686
Link: http://search.proquest.com/docview/1365119613/?pq-origsite=primo
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title: Uniform urchin-like nickel cobaltite microspherical superstructures constructed by one-dimension nanowires and their application for electrochemical capacitors
format: Article
creator:
  • Wu, Tian
  • Li, Jiaoyang
  • Hou, Linrui
  • Yuan, Changzhou
  • Yang, Long
  • Zhang, Xiaogang
subjects:
  • Electrolytes
  • Superstructures
  • Construction
  • Strategy
  • Nickel
  • Nanowires
  • Capacitors
  • Calcines
  • Thin Films, Surfaces, and Interfaces (So)
  • Chemical and Electrochemical Properties (MD)
  • Chemical and Electrochemical Properties (Ep)
  • Chemical and Electrochemical Properties (Ed)
  • Chemical and Electrochemical Properties (EC)
ispartof: Electrochimica Acta, Oct 30, 2012, Vol.81, pp.172-178
description: A novel two-step synthetic strategy was proposed to synthesize urchin-like nickel cobaltite (NiCo2O4) microspherical hierarchical superstructures constructed by one-dimension nanowires: hydrothermal precipitating (Ni, Co) carbonate hydroxide followed by calcinating process. Electrochemical data reveals that the as-synthesized urchin-like NiCo2O4 superstructures can deliver a specific capacitance (SC) of 296 F/g at 1 A/g, and keep it as high as 215 F/g at 5 A/g in 6 M KOH aqueous solution. Such unique urchin-like hierarchical superstructures make each electroactive NiCo2O4 nanowire building block contacted easily by electrolyte ions and electrons at high rates, ensuring that sufficient Faradaic reactions take place at large current densities for energy storage. Moreover, no obvious SC degradation after 1000 continuous charge-discharge cycles at 2 A/g demonstrates good electrochemical stability of the urchin-like microspherical superstructures, promising their great...
language: eng
source: © ProQuest LLC All rights reserved
identifier: ISSN: 0013-4686
fulltext: fulltext
issn:
  • 00134686
  • 0013-4686
url: Link


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titleUniform urchin-like nickel cobaltite microspherical superstructures constructed by one-dimension nanowires and their application for electrochemical capacitors
creatorWu, Tian ; Li, Jiaoyang ; Hou, Linrui ; Yuan, Changzhou ; Yang, Long ; Zhang, Xiaogang
contributorWu, Tian (correspondence author)
ispartofElectrochimica Acta, Oct 30, 2012, Vol.81, pp.172-178
identifierISSN: 0013-4686
subjectElectrolytes ; Superstructures ; Construction ; Strategy ; Nickel ; Nanowires ; Capacitors ; Calcines ; Thin Films, Surfaces, and Interfaces (So) ; Chemical and Electrochemical Properties (MD) ; Chemical and Electrochemical Properties (Ep) ; Chemical and Electrochemical Properties (Ed) ; Chemical and Electrochemical Properties (EC)
descriptionA novel two-step synthetic strategy was proposed to synthesize urchin-like nickel cobaltite (NiCo2O4) microspherical hierarchical superstructures constructed by one-dimension nanowires: hydrothermal precipitating (Ni, Co) carbonate hydroxide followed by calcinating process. Electrochemical data reveals that the as-synthesized urchin-like NiCo2O4 superstructures can deliver a specific capacitance (SC) of 296 F/g at 1 A/g, and keep it as high as 215 F/g at 5 A/g in 6 M KOH aqueous solution. Such unique urchin-like hierarchical superstructures make each electroactive NiCo2O4 nanowire building block contacted easily by electrolyte ions and electrons at high rates, ensuring that sufficient Faradaic reactions take place at large current densities for energy storage. Moreover, no obvious SC degradation after 1000 continuous charge-discharge cycles at 2 A/g demonstrates good electrochemical stability of the urchin-like microspherical superstructures, promising their great...
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titleUniform urchin-like nickel cobaltite microspherical superstructures constructed by one-dimension nanowires and their application for electrochemical capacitors
descriptionA novel two-step synthetic strategy was proposed to synthesize urchin-like nickel cobaltite (NiCo2O4) microspherical hierarchical superstructures constructed by one-dimension nanowires: hydrothermal precipitating (Ni, Co) carbonate hydroxide followed by calcinating process. Electrochemical data reveals that the as-synthesized urchin-like NiCo2O4 superstructures can deliver a specific capacitance (SC) of 296 F/g at 1 A/g, and keep it as high as 215 F/g at 5 A/g in 6 M KOH aqueous solution. Such unique urchin-like hierarchical superstructures make each electroactive NiCo2O4 nanowire building block contacted easily by electrolyte ions and electrons at high rates, ensuring that sufficient Faradaic reactions take place at large current densities for energy storage. Moreover, no obvious SC degradation after 1000 continuous charge-discharge cycles at 2 A/g demonstrates good electrochemical stability of the urchin-like microspherical superstructures, promising their great...
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abstractA novel two-step synthetic strategy was proposed to synthesize urchin-like nickel cobaltite (NiCo2O4) microspherical hierarchical superstructures constructed by one-dimension nanowires: hydrothermal precipitating (Ni, Co) carbonate hydroxide followed by calcinating process. Electrochemical data reveals that the as-synthesized urchin-like NiCo2O4 superstructures can deliver a specific capacitance (SC) of 296 F/g at 1 A/g, and keep it as high as 215 F/g at 5 A/g in 6 M KOH aqueous solution. Such unique urchin-like hierarchical superstructures make each electroactive NiCo2O4 nanowire building block contacted easily by electrolyte ions and electrons at high rates, ensuring that sufficient Faradaic reactions take place at large current densities for energy storage. Moreover, no obvious SC degradation after 1000 continuous charge-discharge cycles at 2 A/g demonstrates good electrochemical stability of the urchin-like microspherical superstructures, promising their great...
urlhttp://search.proquest.com/docview/1365119613/
date2012-10-30