Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface

Jaroslav Filip, Sifani Zavahir, Lenka Lorencova, Tomas Bertok, Ammar Bin Yousaf, Khaled A. Mahmoud, Jan Tkac, Peter Kasak

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this work, the spontaneous and NaBH4-induced reduction of chloroplatinic acid on the surface of Ti3C2TX MXene was investigated to synthesize a hybrid PtNP-decorated MXene nanomaterial (MX-Pt) with potential as hydrogen evolution (HER) or oxygen reduction reaction (ORR) catalyst properties. The initial Pt concentration, reduction time and presence of additional reducing agents were varied, and as-synthesized nanocomposites were characterized thoroughly by XRD, EDX, SEM and XPS analysis and by electrochemical methods. Composites containing 14 wt% Pt showed HER with an onset potential of −75.9 mV and a current density of −10 mA cm−2 achieved at −226 mV. The spontaneous deposition of PtNPs on MXene improved the electrocatalytic properties over using an external reducing agent to form PtNP, which was explained based on the different rates of oxidation of Ti in the initial MXene support. Furthermore, good stability of the electrode modified by the MX-Pt was achieved without any polymeric binder and the HER reaction achieved only a negligible decrease over 3 000 potentiodynamic cycles.

Original languageEnglish
Pages (from-to)H54-H62
JournalJournal of the Electrochemical Society
Volume166
Issue number2
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Reducing Agents
Reducing agents
Nanoparticles
nanoparticles
nanocomposites
current density
Nanostructured materials
catalysts
oxidation
cycles
acids
scanning electron microscopy
Binders
composite materials
electrodes
Energy dispersive spectroscopy
Hydrogen
Nanocomposites
oxygen
Current density

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface. / Filip, Jaroslav; Zavahir, Sifani; Lorencova, Lenka; Bertok, Tomas; Yousaf, Ammar Bin; Mahmoud, Khaled A.; Tkac, Jan; Kasak, Peter.

In: Journal of the Electrochemical Society, Vol. 166, No. 2, 01.01.2019, p. H54-H62.

Research output: Contribution to journalArticle

Filip, J, Zavahir, S, Lorencova, L, Bertok, T, Yousaf, AB, Mahmoud, KA, Tkac, J & Kasak, P 2019, 'Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface', Journal of the Electrochemical Society, vol. 166, no. 2, pp. H54-H62. https://doi.org/10.1149/2.0991902jes
Filip, Jaroslav ; Zavahir, Sifani ; Lorencova, Lenka ; Bertok, Tomas ; Yousaf, Ammar Bin ; Mahmoud, Khaled A. ; Tkac, Jan ; Kasak, Peter. / Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface. In: Journal of the Electrochemical Society. 2019 ; Vol. 166, No. 2. pp. H54-H62.
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