Nickel-based layered double hydroxide from guest vanadium oxide anions

Hae Woong Park, Ji Su Chae, Sun Min Park, Kwang Bum Kim, Kwang Chul Roh

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The layered double hydroxides (LDHs) are well known for ionic exchange properties to intercalate anionic compound in interlayer region. The Ni/V LDH composite was explored by co-precipitation method. The maximum capacitance of Ni/V LDH composite was 2612 F g-1 at the scan rate 2 mV s -1. As-synthesized Ni/V LDH composite provides a three-dimensional conducting network frame for manifesting electrochemical capacitance. This is because the insertion of vanadium oxide anions (VOx -) into nickel interlayer space between nickel layers is compensated for hydroxyl vacancies during synthesis of lower-pH condition. The network frame makes it possible to promote fast electron transfer for Ni/V LDH composite electrode material and consequently allows the improvement of the electronic conductivity for Ni/V LDH composite electrode material. Thus, the Ni/V LDH composite exhibits high capacitance than β-Ni(OH)2 due to its unique properties, with vanadium oxide anions embedded in the turbostratic structure and shorter diffusion pathway.

Original languageEnglish
Pages (from-to)887-894
Number of pages8
JournalMetals and Materials International
Volume19
Issue number4
DOIs
Publication statusPublished - 2013 Jul 1

Fingerprint

Hydroxides
Vanadium
vanadium oxides
Nickel
Oxides
hydroxides
Anions
Negative ions
nickel
anions
Composite materials
composite materials
Capacitance
capacitance
electrode materials
interlayers
Electrodes
Coprecipitation
Vacancies
hydroxide ion

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Cite this

Park, Hae Woong ; Chae, Ji Su ; Park, Sun Min ; Kim, Kwang Bum ; Roh, Kwang Chul. / Nickel-based layered double hydroxide from guest vanadium oxide anions. In: Metals and Materials International. 2013 ; Vol. 19, No. 4. pp. 887-894.
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Nickel-based layered double hydroxide from guest vanadium oxide anions. / Park, Hae Woong; Chae, Ji Su; Park, Sun Min; Kim, Kwang Bum; Roh, Kwang Chul.

In: Metals and Materials International, Vol. 19, No. 4, 01.07.2013, p. 887-894.

Research output: Contribution to journalArticle

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