Hollow polyaniline/pyrrole-chitosan supported Pt-Cu0.5Zn0.5Fe2O4 nanoparticles as an efficient electrocatalyst for enhancement of the methanol oxidation reaction
In this work, the synthesized hollow poly aniline/pyrrole (HP) combined with the biopolymer chitosan (CH) was employed as a robust support material (HP-CH) for nanoparticle deposition. Cu<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> (CZFO) nanoparticles were synthesized and characterized by FT-IR, FESEM, XRD, EDX, and mapping analyses. The novel Pt-CZFO/HP-CH nanocatalyst was then fabricated by chemically reducing hexachloroplatinic acid on the HP-CH support embedded with CZFO nanoparticles, followed by comprehensive characterization. Incorporating CZFO nanoparticles has a positive effect on the performance of Pt nanoparticles, resulting in improved activity, increased stability, and reduced CO poisoning of the catalyst during methanol oxidation, when compared with the Pt-ZFO/HP-CH, Pt-CFO/HP-CH, Pt/HP-CH, and Pt/CH catalysts. The findings underscore the value of integrating mixed metal oxides with Pt-based catalysts and highlight the role of support materials in developing advanced, efficient catalysts for fuel cell applications.
Authors
- Mehri‐Saddat Ekrami‐Kakhki (ORCID: https://orcid.org/0000-0002-8500-2077)
- Parvin Asen
- Nahid Farzaneh
- MohammadReza Taheri (ORCID: https://orcid.org/0000-0003-0658-4783)
- Taha Safari
Institutions
- Amol University of Special Modern Technologies (IR)
- Esfarayen University of Technology (IR)
Publication Details
- Journal
- Scientific Reports
- Published
- 2025-12-14
- DOI
- https://doi.org/10.1038/s41598-025-32651-1
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Amol University of Technology
- Esfarayen University of Technology