Carbonized Wood Decorated with Ternary Heterogeneous MoS₂–MoP–Mo₂C Nanoparticles for pH-Universal Hydrogen Evolution

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14025 - 14035

Опубликована: Фев. 20, 2025

The assembly of diverse active materials significantly enhances the efficiency electrocatalytic hydrogen evolution reaction (HER). Herein, we prepare a three-phase composite structure electrocatalyst on carbonized wood, in which molybdenum carbide and phosphide are attached to sulfide nanosheets (MoS2-MoP-Mo2C@CW) through hydrothermal method combination with high-temperature calcination for pH-universal HER. MoS2 possesses abundant unsaturated coordination edge sites, thus facilitating adsorption desorption intermediate (H*). synergistic effect between MoS2, MoP featuring favorable electronic conductivity, Mo2C holding strong H* catalytic activity Moreover, wood hierarchical porous aligned microchannels accelerates mass transport during As result, molybdenum-based self-supported electrode exhibits outstanding HER performance low overpotentials 46, 84, 65 mV achieve current density 10 mA cm-2 corresponding Tafel slopes 57, 111 mV, 63 dec-1 alkaline, neutral, acidic environments, respectively. MoS2-MoP-Mo2C@CW also shows long-term durability 200 h over broad pH range at cm-2. This work provides an effective strategy development multiphase wood-based electrocatalysts

Язык: Английский

Enhanced alkaline hydrogen evolution reaction through a sponge-like structure: Synergistic impact of diverse active sites

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 125, С. 364 - 373

Опубликована: Апрель 10, 2025

Язык: Английский