Phosphorus-Doped Highly Crystalline Carbon for High Platinum Stability and Robust Support in Proton-Exchange Membrane Fuel Cells.

ABSTRACT: Proton-exchange membrane fuel cells (PEMFCs) require durable and efficient catalyst supports to overcome the limitations of Pt-based catalysts and conventional low-crystalline carbon (LCC) supports, such as high cost, susceptibility to corrosion, and poor electrochemical durability. While highly crystalline carbon (HCC) offers improved stability, its intrinsic hydrophobicity and low defect density hinder Pt nanoparticles (NPs) nucleation and dispersion. In this study, a spin-on-dopant (SOD) approach is employed to synthesize phosphorus-incorporated HCC (HCC_P) providing stable anchoring sites that facilitate uniform Pt NPs distribution. Compared to commercial Pt/LCC, Pt/HCC_P exhibits enhanced thermal stability and oxidation resistance, with an oxidation onset temperatu

SUBMITTER: Kim HS 

PROVIDER: S-EPMC12825329 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature