Facile Ion-Exchange Method for Zn Intercalated MoS2 As an Efficient and Stable Catalyst toward Hydrogen Evaluation Reaction

Özgür D., ÖZKAN G., Atakol O., ÇELİKKAN H.

ACS APPLIED ENERGY MATERIALS, cilt.4, sa.3, ss.2398-2407, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 4 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1021/acsaem.0c02899
  • Dergi Adı: ACS APPLIED ENERGY MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex
  • Sayfa Sayıları: ss.2398-2407
  • Anahtar Kelimeler: layered materials, Zn intercalated MoS2, ion-exchange method, hydrogen evolution reaction, electrocatalyst, EVOLUTION REACTION, ELECTROCHEMICAL SENSOR, ACTIVE-SITES, DOPED MOS2, GRAPHENE, 1T-MOS2, ELECTROCATALYSTS, NANOCOMPOSITE, NANOSHEETS, MECHANISM
  • Gazi Üniversitesi Adresli: Evet

Özet

Progress of non-noble-metal catalysts for hydrogen evolution reaction (HER) with high activity as well as the low cost has remained the main challenge in past decades. Herein, for the first time, zinc intercalated MoS2 (Zn@MoS2) was prepared by a facile Li exchange procedure at a controlled temperature, and the electrocatalytic activity of Zn@MoS2 and graphene synergistic effect on HER were examined in 0.5 M H2SO4. Electrochemical measurements showed an overpotential to be 0.378 V with a Tafel slope of 81 mV decade(-1). The results offer a novel methodology for the preparation of effective catalysts to be used in water splitting technology, which could be used in the synthesis of other transition metal-based 2D materials.