Development of 1T phase on flower-like molybdenum disulfide by ambient plasma for efficient water splitting

Abstract

In the pursuit of efficient, renewable, and cost-effective electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), a flower-like 1T phase molybdenum disulfide (1T-MoS2) was synthesized using an ambient plasma technique. With superior electrocatalytic activity and conductivity, it delivered a low Tafel slope of 74 mV/dec with the overpotential of -154 mV at the current density of -10 mA/cm2 for HER and improved Tafel slope of 94 mV/dec with overpotential of 216 mV at +10 mA/cm2 for OER. This study demonstrates the formation of 1T phase on the flower-like 2H-MoS2 by the easy ambient plasma method.

Keywords

• Molybdenum disulfide
• Hydrothermal synthesis
• Ambient plasma
• Hydrogen evolution reaction
• Oxygen evolution reaction