The Role of the Metal Element in Layered Metal Phosphorus Triselenides upon Their Electrochemical Sensing and Energy Applications

Rui Gusmão, Zdeněk Sofer, David Sedmidubský, Štěpán Huber, Martin Pumera

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The number of layered materials seems to be ever-growing, from mono- to multielement, with affiliates and applications being tested continuously. Chalcogenophosphites, also designated as metal phosphorus chalcogenides (MPXn), have attracted great interest because of not only their magnetic properties but also promising capabilities in energy applications. Herein, bulk crystals of different layered metal triselenophosphites, with a general formula MPSe3 (M = Cd, Cr, Fe, Mn, Sn, Zn), were synthesized. Structural and morphological characterization was performed prior to testing their electrochemical performance. From the set of ternary layered materials, FePSe3, followed by MnPSe3, yielded the highest efficiency for the hydrogen evolution reaction (HER) both in acidic and alkaline media with good stability after 100 cycles. MnPSe3 also holds the lowest oxidation potential for cysteine, although this is due to the presence of MnO2 in the structure as detected by X-ray photoelectron spectroscopy. For the oxygen evolution reaction, the best performance was observed for FePSe3, although the stability of the material was not as good as in the case of HER. These findings have profound implications in the application of these layered ternary compounds in energy-related fields.

Original languageEnglish
Pages (from-to)8159-8170
Number of pages12
JournalACS Catalysis
Volume7
Issue number12
DOIs
Publication statusPublished - 2017 Dec 1

Fingerprint

Chemical elements
Phosphorus
Metals
Hydrogen
Chalcogenides
Cysteine
Magnetic properties
X ray photoelectron spectroscopy
Oxygen
Oxidation
Crystals
Testing

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Gusmão, Rui ; Sofer, Zdeněk ; Sedmidubský, David ; Huber, Štěpán ; Pumera, Martin. / The Role of the Metal Element in Layered Metal Phosphorus Triselenides upon Their Electrochemical Sensing and Energy Applications. In: ACS Catalysis. 2017 ; Vol. 7, No. 12. pp. 8159-8170.
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The Role of the Metal Element in Layered Metal Phosphorus Triselenides upon Their Electrochemical Sensing and Energy Applications. / Gusmão, Rui; Sofer, Zdeněk; Sedmidubský, David; Huber, Štěpán; Pumera, Martin.

In: ACS Catalysis, Vol. 7, No. 12, 01.12.2017, p. 8159-8170.

Research output: Contribution to journalArticle

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