Cited 6 time in webofscience Cited 8 time in scopus

Metal phosphide nanoparticles embedded in carbon as efficient electrocatalyst for oxygen evolution reaction

Title
Metal phosphide nanoparticles embedded in carbon as efficient electrocatalyst for oxygen evolution reaction
Authors
Shanmugam, SangarajuSivanantham, ArumugamMatsunaga, MarikSimon, UlrichOsaka, Tetsuya
DGIST Authors
Shanmugam, Sangaraju
Issue Date
2019-02
Citation
Electrochimica Acta, 297, 749-754
Type
Article
Article Type
Article
ISSN
0013-4686
Abstract
We describe a facile and simple solid-state thermolysis route for the preparation of Co, Ni, and Fe phosphide nanoparticles embedded in amorphous carbon using an organometallic complex. This was achieved by using a suitable organometallic complex in a single step synthetic route without using any solvent or catalyst. The advantage of using such precursor was to offer a source for metal, phosphorus and carbon without using any additional sources. The morphology of products was characterized by transmission electron microscopy, scanning electron microscopy and nature of carbon was analyzed using the Raman microscope and X-ray diffraction. The electrocatalytic oxygen evolution reaction (OER) activity and stability of the metal phosphide nanostructure was evaluated using the rotating disk electrode technique. The CoP, NiP and FeP exhibit the OER overpotential of 370, 380 and 550 mV at 10 mA cm−2, respectively in 0.1 M KOH electrolyte. Among prepared phosphide catalysts, cobalt phosphide shows a lowest Tafel slope indicate favorable kinetics for the OER activity than nickel and iron phosphide catalysts. © 2018 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/9564
DOI
10.1016/j.electacta.2018.12.028
Publisher
Elsevier Ltd
Related Researcher
  • Author Shanmugam, Sangaraju Advanced Energy Materials Laboratory
  • Research Interests Electrocatalysts for fuel cells; water splitting; metal-air batteries; Polymer electrolyte membranes for fuel cells; flow batteries; Hydrogen generation and utilization
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


qrcode mendeley

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

BROWSE