Preparation and Methanol Oxidation Performance Study of PtCu Nanoparticle Alloy Catalysts Modified by Mo₂C Derived from MOFs

DOI

10.2991/978-94-6463-902-5_50How to use a DOI?

Keywords

DMFC; MOR; platinum-based cataly--st; MOFs-derived carbon

Abstract

Direct Methanol Fuel Cells (DMFCs) represent a crucial pathway toward achieving green electricity generation and reducing dependence on conventional energy sources. However, the currently prevalent platinum-based catalysts for methanol electrooxidation reactions suffer from high costs, poor stability, and susceptibility to CO poisoning, which significantly restricts their development and practical application. The key to developing high-performance MOR catalysts lies in enhancing both the mass-specific catalytic activity of Pt and its CO tolerance. In our research, we used a two-step approach—a co-precipitation process, followed by a high-temperature carbonization process. This was paired with an innovative spontaneous galvanic replacement technique, all aimed at creating MOF-based molybdenum carbide-tweaked PtCu nanocomposite catalysts, or Pt/Cu-MoC for short. The Pt_0.10/Cu-MoC variant boasts a remarkable maximum oxidation reduction current density of 563.25 mA mg⁻¹ Pt, a full two and a half times more potent than that of conventional Pt/C catalysts. Not to mention, it’s a real standout when it comes to handling carbon monoxide. The reason for this impressive boost in performance is all down to the perfect synergy between the platinum and copper, which tweak the platinum’s electronic properties by lowering its d-band center. Meanwhile, the potent connection between molybdenum carbide and the PtCu alloy really ramps up the efficiency of electron transfer, thereby spiking the catalytic activity. The catalyst synthesis strategy presented herein provides valuable discoveries aiding the creation of more effective and durable electrocatalysts.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Chao Luan
PY  - 2025
DA  - 2025/12/16
TI  - Preparation and Methanol Oxidation Performance Study of PtCu Nanoparticle Alloy Catalysts Modified by Mo₂C Derived from MOFs
BT  - Proceedings of the 2025 7th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2025)
PB  - Atlantis Press
SP  - 512
EP  - 518
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-902-5_50
DO  - 10.2991/978-94-6463-902-5_50
ID  - Luan2025
ER  -