Beyond the Platinum Era─Scalable Preparation and Electrochemical Activation of TaS₂ Flakes.

ABSTRACT: Among 2D materials, transition-metal dichalcogenides (TMDCs) of group 5 metals recently have attracted substantial interest due to their superior electrocatalytic activity toward hydrogen evolution reaction (HER). However, a straightforward and efficient synthesis of the TMDCs which can be easily scaled up is missing. Herein, we report an innovative, simple, and scalable method for tantalum disulfide (TaS₂) synthesis, involving CS₂ as a sulfurizing agent and Ta₂O₅ as a metal precursor. The structure of the created TaS₂ flakes was analyzed by Raman, XRD, XPS, SEM, and HRTEM techniques. It was demonstrated that a tuning between 1T (metallic) and 3R (semiconductor) TaS₂ phases can be accomplished by varying the reaction conditi

SUBMITTER: Buravets V 

PROVIDER: S-EPMC10016745 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature