Molten Salt-Assisted Synthesis of Porous Precious Metal-Based Single-Atom Catalysts for Oxygen Reduction Reaction.

ABSTRACT: Precious metal-based single-atom catalysts (PM-SACs) hosted in N-doped carbon supports have shown new opportunities to revolutionize cathodic oxygen reduction reaction (ORR). However, stabilizing the high density of PM-N_x sites remains a challenge, primarily due to the inherently high free energy of isolated metal atoms, predisposing them to facile atomic agglomeration. Herein, a molten salt-assisted synthesis strategy is proposed to prepare porous PM₁/N-C_Pores (PM = Ru, Pt, and Pd) electrocatalysts with densely accessible PM-N_x sites. A hierarchically porous N-doped carbon substrate (N-C_Pores), synthesized via the NaCl-assisted pyrolysis of zeolitic imidazolate framework-8, effectively improves the utilization of PM-N_x site

SUBMITTER: Fan C 

PROVIDER: S-EPMC11848534 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature