Skip navigation
  • Logo
  • Home
  • Communities
    & Collections
  • Research Outputs
  • Researchers
  • Projects
  • Explore by
    • Research Outputs
    • Researchers
    • Projects
  • Sign on to:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
FFH logo

  1. RePhyChem
  2. Research Outputs
  3. Journal Article
Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/90
Title: Simple routes for the improvement of hydrogen evolution activity of Ni-Mo catalysts: From sol-gel derived powder catalysts to graphene supported co-electrodeposits
Authors: Gutić, S. J.
Jovanović, A. Z. 
Dobrota, A. S. 
Metarapi, D.
Rafailović, L. D.
Pašti, Igor 
Mentus, S. V. 
Keywords: Composite electrodes;Graphene;Hydrogen evolution reaction;Nickel-molybdenum catalysts;Reduced graphene oxide
Issue Date: 30-Aug-2018
Journal: International Journal of Hydrogen Energy
Abstract: 
Development of noble metal-free catalysts for hydrogen production is one of the cores of the sustainable energy economy. Here we present results of systematic analysis of catalytic activity of Ni-Mo alloy powders in alkaline media towards hydrogen evolution reaction (HER). Catalysts were prepared in a wide concentration range (from Ni0.2Mo0.8 to Ni0.9Mo0.1), and resulted with a volcano shaped activity-composition relationship, with maximum catalytic activity achieved for the powder with nominal composition Ni0.6Mo0.4. Improved HER activity is ascribed to reduced deactivation by hydride formation and adequate hydrogen-surface energetics on Ni-Mo catalysts. In the second part, we demonstrate a novel method for electrochemical formation of NiMo@rGO composites. Prepared composite electrodes show improved electrocatalytic activity compared to both pure Ni and Ni@rGO electrodes. Activity was observed to depend on the deposition time and is contributed by two factors: (i) formation of Ni-Mo system and (ii) formation of an interfacial region with rGO. We expect that the provided activity-composition relationship in combination with novel electrochemical NiMo-rGO composite formation procedure will provide a route for the development of new highly efficient noble metal-free HER electrocatalysts.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/90
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2017.11.131
Appears in Collections:Journal Article

Show full item record

SCOPUSTM   
Citations

26
checked on Jun 9, 2025

Page view(s)

29
checked on Jun 10, 2025

Google ScholarTM

Check

Altmetric

Altmetric


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


Explore by
  • Communities
    & Collections
  • Research Outputs
  • Researchers
  • Projects
University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry