Enhanced hydrogen evolution and symmetric supercapacitor performance of a Ru-doped multiphase WS₂ electrode

Abstract

The metallic and semiconductive phase (1T/2H) coupling enhanced electrochemical energy generation and storage performance of the Ru-doped WS2 multifunctional electrode is reported here.

Efficient hydrogen evolution from degenerate-doped p-type WS2 electrocatalysts over a wide pH range

“…Therefore, the expansion of interlayer spacing in p + -WS 2 -9.8 is due to the (2H/1T) phase coupling. 48 Fig. 3h shows the current–voltage ( I – V ) characteristics of all samples measured using two probes (inset, bottom panel) at room temperature.…”

“…Pristine and Ir-doped WS 2 nanosheets were synthesized using a chemical method by firing the mixture of W, S, and Ir sources. 47,48 In a typical procedure, the precursors tungstic acid (H 2 WO 4 ) and thiourea (CH 4 N 2 S) with a molar ratio of 1 : 48 were ground for 1 hour under ambient conditions. The mixture was collected in an alumina boat and heated at 600 °C for 3 hours under a N 2 (99.999% purity) atmosphere in a tubular furnace to get pristine WS 2 nanosheets.…”