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Engineering Bicontinuous Cu-Pd Nanoplates for Enhanced Ethanol Electrooxidation.
Yuanyuan Min1, Li Wang1, Xiaoyi Guo1
1School of Chemistry, Chemical Engineering, and Materials, Jining University, Qufu, Shandong 273155, China.
Inorganic Chemistry
|December 31, 2025
Summary
We developed bicontinuous copper-palladium nanoplates for enhanced ethanol oxidation reactions. These novel nanostructures offer superior catalytic performance for fuel cells.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Bicontinuous 2D noble metal nanocrystals offer increased surface area and efficient mass transport.
- These properties make them promising for advanced electrocatalytic applications.
Purpose of the Study:
- To fabricate bicontinuous copper-palladium (CuPd) nanoplates.
- To evaluate their electrocatalytic performance for the ethanol oxidation reaction (EOR).
Main Methods:
- Controlled galvanic replacement of Cu nanoplates with Pd precursors.
- Synergistic use of KCl, oxygen, and acetic acid.
- Characterization using in situ surface-enhanced Raman spectroscopy and DFT simulations.
Main Results:
- Successfully synthesized 2D CuPd nanoplates with interconnected in-plane channels.
- CuPd nanoplates demonstrated significantly enhanced EOR performance compared to Pd nanocubes and Pt/C.
- Confirmed C1 pathway for EOR on CuPd, leading to CO2 production.
Conclusions:
- Bicontinuous CuPd nanoplates are effective catalysts for EOR.
- Alloy composition and OH coverage are key factors for promoting EOR.
- This work presents a viable method for designing advanced bimetallic nanomaterials for fuel cells.
