Technological Features of Creating Hole Structures on the Base of MoS2 and the Electrochemical Behavior of MXene/Holey MoS2 Hybrids in Oxygen Reduction Reactions

Havva Nur Gurbuz, Hasan H. Ipekci, Vladimir Goremichin, Nikita Siminel*, Leonid Kulyuk, Aytekin Uzunoglu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

High-performance noble metal-free two-dimensional (2D) electrochemical catalysts have gained great importance to replace the Pt-based catalysts in oxygen reduction reactions (ORR) to reduce not only the cost of the fuel cells but also enhance the energy efficiency. Herein, we designed a novel ORR catalyst by forming MXene/holey MoS2 hybrids. The holes were created on the basal plane of MoS2 both to create electroactive defective regions and enhance the diffusion of the reactants in the catalyst layer. Holey 2D MoS2 layers were characterized using transmission electron microscopy (TEM), UV-ViS spectroscopy, scanning electron microscope (SEM), and Raman spectroscopy. The TEM images indicated the formation of nano-holes on the basal plane of MoS2. The increased defect concentration was revealed from the Raman spectra of the samples. The successful synthesis of the V2C MXene layers was confirmed using SEM and EDS results. The holes created on the basal plane of 2D MoS2 boosted the electrochemical ORR performance compared to the pristine 2D counterparts, which is attributed to the defect-rich active sites on the edge of the holes and enhanced diffusion of the reactants. In conclusion, our designed MXene/holey MoS2 hybrid catalyst exhibits superior electrochemical performance in ORR, offering a promising approach for the development of cost-effective and efficient catalysts for fuel cell applications.

Original languageEnglish
Title of host publication6th International Conference on Nanotechnologies and Biomedical Engineering - Proceedings of ICNBME-2023 - Volume 1
Subtitle of host publicationNanotechnologies and Nano-biomaterials for Applications in Medicine
EditorsVictor Sontea, Serghei Railean, Ion Tiginyanu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages249-256
Number of pages8
ISBN (Print)9783031427749
DOIs
Publication statusPublished - 2024
Externally publishedYes
Event6th International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2023 - Chisinau, Moldova, Republic of
Duration: 20 Sept 202323 Sept 2023

Publication series

NameIFMBE Proceedings
Volume91
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Conference

Conference6th International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2023
Country/TerritoryMoldova, Republic of
CityChisinau
Period20/09/2323/09/23

Bibliographical note

Publisher Copyright:
© 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Keywords

  • Catalyst
  • Holey Structure
  • MoS
  • MXene
  • Oxygen Reduction Reaction

Fingerprint

Dive into the research topics of 'Technological Features of Creating Hole Structures on the Base of MoS2 and the Electrochemical Behavior of MXene/Holey MoS2 Hybrids in Oxygen Reduction Reactions'. Together they form a unique fingerprint.

Cite this