PdCu-Cu₂O Core-Shell Catalyst

CO selectivity >93%

Oxygen-vacancy Cu₂O core with PdCu alloy embedded in N-doped porous carbon shell synergistically converts CO₂ to CO.

75475709 · 79393427 · 75475707 · Liu, Rongmei · Shen, Fengcui

International Journal of Hydrogen Energy 2026

Specifications

CO Faradaic efficiency

{'zh': '93.18', 'en': '93.18'} %

Current density

{'zh': '62', 'en': '62'} mA cm-2

Advantages

>93% selectivity

Interfacial synergy lowers the *COOH formation energy and facilitates *CO desorption, suppressing hydrogen evolution.

62 mA cm-2 current density

Hierarchical porosity and tuned hydrophobicity enhance CO2 mass transport.

Oxygen vacancies boost activity

The Cu2O core rich in oxygen vacancies provides abundant active sites.

Stable core-shell structure

The N-doped porous carbon shell protects the Cu2O and tunes the microenvironment.

Applications

• CO₂ electroreduction catalysts：Can be directly used as catalytic electrodes for CO2-to-CO electroreduction
• CO₂-to-chemicals：Converts CO2 into CO, a basic chemical feedstock for downstream synthesis
• electrocatalytic materials：Provides an electrocatalytic material platform with high activity and selectivity
• CO₂ conversion：Enables selective conversion of greenhouse gas CO2 into value-added products
• syngas production：As a CO2 electrolysis catalyst for CO generation, can be used in syngas production