Jump to main content
Jump to site search

Issue 8, 2017
Previous Article Next Article

Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution

Author affiliations

Abstract

Ultrafine molybdenum sulfide (MoS2) nanocrystals are grown on a porous cobalt (Co) foam current collector by atomic layer deposition (ALD) using molybdenum hexacarbonyl and hydrogen sulfide as precursors. When used to catalyze the oxygen evolution reaction (OER), the optimal Co@MoS2 electrode, even with a MoS2 loading as small as 0.06 mg cm−2, exhibits a large cathodic shift of ca. 200 mV in the onset potential (the potential at which the current density is 5 mA cm−2), a low overpotential of only 270 mV to attain an anodic current density of 10 mA cm−2, much smaller charge transfer resistance and substantially improved long-term stability at both low and high current densities, with respect to the bare Co foam electrode, showing substantial promise for use as an efficient, low-cost and durable anode in water electrolyzers.

Graphical abstract: Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Jan 2017, accepted on 27 Jan 2017 and first published on 30 Jan 2017


Article type: Communication
DOI: 10.1039/C7NR00140A
Citation: Nanoscale, 2017,9, 2711-2717
  •   Request permissions

    Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution

    D. Xiong, Q. Zhang, W. Li, J. Li, X. Fu, M. F. Cerqueira, P. Alpuim and L. Liu, Nanoscale, 2017, 9, 2711
    DOI: 10.1039/C7NR00140A

Search articles by author

Spotlight

Advertisements