Bath temperature impact on morphological evolution of Ni(OH)2 thin films and their supercapacitive behaviour

U. M. Patil, K. V. Gurav, J. H. Kim, C. D. Lokhande, Seong Chan Jun

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Nanostructured Ni(OH)2 thin films were deposited over stainless steel (SS) and glass substrate via simple chemical bath deposition (CBD) method. NiCl2:6H2O were used as source of nickel and aqueous ammonia as a complexing agent. The coating process of Ni(OH)2 material over substrate is based on the decomposition of ammonia complexed nickel ions at two different bath temperatures. The changes in structural, morphological and electrochemical properties are examined as an impact of bath temperature. XRD studies reveal formation of mixed phase of α and β at lower bath temperature (313 K) while, pure β phase of Ni(OH)2 thin films deposited was observed at higher bath temperature (353 K). The morphological evolution from honeycomb structure to vertically aligned flakes over the substrate is observed as the influence of bath temperature. The supercapacitive performance based on the morphology examined by using cyclic voltammetric measurements in 1 M KOH. Themaximum specific capacitances of 610 and 460 F/g were observed for the vertical flake and honeycomb structured Ni(OH)2 thin films, respectively.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalBulletin of Materials Science
Volume37
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Thin films
Nickel
Ammonia
Substrates
Temperature
Honeycomb structures
Stainless Steel
Electrochemical properties
Structural properties
Capacitance
Stainless steel
Ions
Decomposition
Glass
Coatings

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials

Cite this

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abstract = "Nanostructured Ni(OH)2 thin films were deposited over stainless steel (SS) and glass substrate via simple chemical bath deposition (CBD) method. NiCl2:6H2O were used as source of nickel and aqueous ammonia as a complexing agent. The coating process of Ni(OH)2 material over substrate is based on the decomposition of ammonia complexed nickel ions at two different bath temperatures. The changes in structural, morphological and electrochemical properties are examined as an impact of bath temperature. XRD studies reveal formation of mixed phase of α and β at lower bath temperature (313 K) while, pure β phase of Ni(OH)2 thin films deposited was observed at higher bath temperature (353 K). The morphological evolution from honeycomb structure to vertically aligned flakes over the substrate is observed as the influence of bath temperature. The supercapacitive performance based on the morphology examined by using cyclic voltammetric measurements in 1 M KOH. Themaximum specific capacitances of 610 and 460 F/g were observed for the vertical flake and honeycomb structured Ni(OH)2 thin films, respectively.",
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Bath temperature impact on morphological evolution of Ni(OH)2 thin films and their supercapacitive behaviour. / Patil, U. M.; Gurav, K. V.; Kim, J. H.; Lokhande, C. D.; Jun, Seong Chan.

In: Bulletin of Materials Science, Vol. 37, No. 1, 01.01.2014, p. 27-33.

Research output: Contribution to journalArticle

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