Cited time in webofscience Cited time in scopus

Nanostructured Nickel-Cobalt-Titanium Alloy Grown on Titanium Substrate as Efficient Electrocatalyst for Alkaline Water Electrolysis

Title
Nanostructured Nickel-Cobalt-Titanium Alloy Grown on Titanium Substrate as Efficient Electrocatalyst for Alkaline Water Electrolysis
Author(s)
Ganesan, PandianSivanantham, ArumugamShanmugam, Sangaraju
Issued Date
2017-04
Citation
ACS Applied Materials & Interfaces, v.9, no.14, pp.12416 - 12426
Type
Article
Author Keywords
nickel-cobalt-titaniumtitanium substratesalkaline water splittingelectrocatalystselectrodepositionOERHERalloy
Keywords
Alkaline ElectrolytesAlkaline WaterAlkaline Water ElectrolysisAlkaline Water SplittingAlloyAlloyingElectrodepositionElectrodesElectrolysisElectrolytesHERHydrogenMembrane Electrode AssembliesNickelNickel-Cobalt-TitaniumOERReductionSubstratesTitaniumTitanium AlloysTitanium SubstratesBi-Functional CatalystsCatalyst ActivityCatalystsCobaltCorrosion ResistanceElectrocatalystsElectrocatalytic ActivityElectrochemical Deposition
ISSN
1944-8244
Abstract
One of the important challenges in alkaline water electrolysis is to utilize a bifunctional catalyst for both hydrogen evolution (HER) and oxygen evolution (OER) reactions to increase the efficiency of water splitting devices for the long durable operations. Herein, nickel-cobalt-titanium (NCT) alloy is directly grown on a high corrosion resistance titanium foil by a simple, single, and rapid electrochemical deposition at room temperature. The electrocatalytic activity of NCT alloy electrodes is evaluated for both HER and OER in aqueous electrolyte. Our NCT electrocatalyst exhibits low overpotentials around 125 and 331 mV for HER and OER, respectively, in 1 M KOH. In addition to this outstanding activity, the bifunctional catalyst also exhibits excellent OER and HER electrode stability up to 150 h of continuous operation with a minimal loss in activity. Further, the NCT alloy directly grown on titanium foil is used to directly construct membrane electrode assembly (MEA) for alkaline electrolyte membrane (AEM) water electrolyzer, which make the practical applicability. This single-step electrodeposition reveals NCT on titanium foil with high activity and excellent electrode stability suitable for replacing alternative commercial viable catalyst for the alkaline water splitting. ? 2017 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/4043
DOI
10.1021/acsami.7b00353
Publisher
American Chemical Society
Related Researcher
  • 상가라쥬샨무감 Shanmugam, Sangaraju
  • Research Interests Electrocatalysts for fuel cells; water splitting; metal-air batteries; Polymer electrolyte membranes for fuel cells; flow batteries; Hydrogen generation and utilization
Files in This Item:

There are no files associated with this item.

Appears in Collections:
Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles

qrcode

  • twitter
  • facebook
  • mendeley

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE