Efficient PtRu/C Anodes via CO-Assisted Synthesis: Toward High-Activity and Durable Catalysts for Hydrogen, CO, and Methanol Oxidation Reactions | Sciact - CRIS-system of Boreskov Institute of Catalysis

Efficient PtRu/C Anodes via CO-Assisted Synthesis: Toward High-Activity and Durable Catalysts for Hydrogen, CO, and Methanol Oxidation Reactions Full article

Journal

Journal of Power Sources
ISSN: 0378-7753

Output data

Year: 2025, Volume: 656, Article number : 238072, Pages count : 10 DOI: 10.1016/j.jpowsour.2025.238072

Tags

PtRu/C; PEMFC; DMFC; CO tolerance; Hydrogen oxidation reaction; Methanol oxidation reaction

Authors

Paperzh Kirill ¹ , Pankova Yulia ¹ , Moguchikh Elizaveta ¹ , Pankov Ilya ² , Aydakov Egor ³ , Gerasimova Ekaterina ⁴ , Belmesov Andrey ⁴ , Alekseenko Anastasia ¹

Affiliations

1	Faculty of Chemistry, Southern Federal University, Rostov-on-Don, 344090, Russia
2	Research Institute of Physical and Organic Chemistry, Southern Federal University, Rostov-on-Don, 344090, Russia
3	Department of Catalysis Research, Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
4	Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS, Chernogolovka, 142432, Russia

Funding (1)

Russian Science Foundation

23-79-00058 (123060600089-1)

Designing high-performance, multi-functional electrocatalysts for fuel oxidation reactions remains a critical challenge in proton-exchange membrane fuel cells and direct methanol fuel cells. While PtRu/C materials are deemed as promising anode catalysts for hydrogen (HOR), CO (COOR), and methanol (MOR) oxidation reactions, their performance is limited by nanoparticles agglomeration, insufficient active sites, and poor durability. We have applied a set of methods to evaluate the microstructure and composition of the catalysts, including XRD, BET, TXRF, XPS, TEM, and EDX. We report a CO-assisted synthesis strategy to produce structurally optimized PtRu/C catalysts featuring ultrasmall nanoparticles (≤4 nm), narrow size distribution, and uniform spatial dispersion, which collectively enable a high electrochemically active surface area (ESA >100 m2/g). The resulting catalyst exhibits exceptional multi-fuel activity: record-low overpotentials (8 mV @ 1 mA/cm2) and mass activity (253 A/gPtRu at 0.025 V) for HOR, 2.1-fold higher MOR current density, and complete CO tolerance in COOR, outperforming conventional Pt/C and PtRu/C analogs. Crucially, the catalyst retains >80 % of its initial ESA and 7.5 times more activity in MOR compared to commercial PtRu/C after stress testing. Our strategy bridges the gap between synthetic control and practical application, offering a pathway to cost-effective, high-performance fuel cell systems. Graphical abstract

Paperzh K. , Pankova Y. , Moguchikh E. , Pankov I. , Aydakov E. , Gerasimova E. , Belmesov A. , Alekseenko A.
Efficient PtRu/C Anodes via CO-Assisted Synthesis: Toward High-Activity and Durable Catalysts for Hydrogen, CO, and Methanol Oxidation Reactions
Journal of Power Sources. 2025. V.656. 238072 :1-10. DOI: 10.1016/j.jpowsour.2025.238072 Scopus OpenAlex

Submitted:	May 2, 2025
Accepted:	Aug 6, 2025
Published online:	Aug 9, 2025
Published print:	Nov 15, 2025

Scopus:	2-s2.0-105012581274
OpenAlex:	W4413204072

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