Hierarchical porous Co-rich PtCo thin films for alkaline seawater hydrogen evolution with chlorine corrosion resistance

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The creation of cost-effective and efficient catalysts for hydrogen evolution in seawater is highly desirable, yet it still poses considerable challenges.

Language: Английский

V-doped Co₂P Anchored on the N–P-Doped Three-Dimensional Covalently Cross-Linked Graphene As a Hydrogen Evolution Reaction Catalyst for Alkaline Water/Seawater Splitting

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Designing and synthesizing highly efficient stable electrocatalysts of seawater electrolysis for the hydrogen evolution reaction is important realizing green production. Herein, a heterostructured V-doped Co2P anchored on N-P-doped three-dimensional covalently cross-linked graphene (V-Co2P@NPPC/3DG) was synthesized with help ZIF-67 as an intermediate controlled phosphidation process. The as-prepared V-Co2P@NPPC/3DG-1:5 had low overpotentials 98.3 88.3 mV (at 10 mA cm-2) in alkaline water artificial seawater, respectively, corresponding Tafel slopes were 56.4 51.0 dec-1. electrolyzer flowing assembled from commercial RuO2 catalyst exhibited cell voltage 1.54 V at cm-2, which close to that Pt/C||RuO2 (1.52 V). Notably, V-Co2P@NPPC/3DG-1:5||RuO2 lower than high current density (>58 cm-2), superior stability. doping effectively enhanced intrinsic activity Co2P, complexation NPPC/3DG achieved full exposure active sites while enhancing charge transfer rate during HER. This work will attract attention role metal compound-carbon support interactions activity, conductivity, stability electrocatalysts.

Language: Английский

Durable Hierarchical Porous PtCo Nanoparticle Films for Hydrogen Evolution Reaction in Simulated Seawater

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский