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Gemma-Ann Benskin

doi:10.1155/pedi/5454172

Influence of post-synthesis acid treatments on Pt/C catalyst properties prepared by polyol method for oxygen reduction reaction in proton exchange membrane fuel cells

2026-08-04

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PRE

AI

H

Huabo Li

D

Dong Bai

L

Lu Zhou *

DOI：10.1016/j.materresbull.2026.114370

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• Eight post-synthesis acid treatments were systematically compared under identical polyol-derived Pt/C preparation conditions. • Citric acid treatment at pH 2 achieved 99% Pt loading efficiency and an ECSA of 106.2 m2 gPt−1. • The citric acid-treated catalyst delivered an ORR mass activity of 0.279 A mgPt−1, exceeding that of commercial Pt/C. • After 30,000 potential cycles, the citric acid-treated catalyst showed a lower ECSA loss than commercial Pt/C (25.3% vs. 42.3%).

Keywords:

Proton exchange membrane fuel cells

Oxygen reduction reaction

Pt-based catalyst

Polyol method

Acid treatment

Influence of post-synthesis acid treatments on Pt/C catalyst properties prepared by polyol method for oxygen reduction reaction in proton exchange membrane fuel cells

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