Integration of Phosphorus in PdCr Metallene for Enhanced CO-Tolerant Alcohol Electrooxidation DOI

Haiting Liu,

Tong Li,

Zizhan Wu

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 64(1), P. 123 - 132

Published: Dec. 24, 2024

Pd-based alloys are among the most attractive catalysts for direct alcohol fuel cells. However, their widespread use is limited by high cost of Pd and susceptibility to deactivation surface-adsorbed reaction intermediates, particularly CO. In this study, we engineered an ultrathin 2D PdCr metallene minimize usage doped it with phosphorus enhance its CO tolerance. The resulting P-PdCr demonstrated significantly higher activity, stability, tolerance electrooxidation various alcohols compared commercial Pd/C catalysts. Particularly, methanol oxidation (MOR), catalyst achieved a mass activity 2.64 A mg–1Pd specific 5.81 mA cm–2, maintaining remarkable stability over duration 27 h. Density functional theory calculations revealed that enhanced performance attributed incorporation Cr P atoms into structure. This reduces energy barriers potential-determining step in MOR process, mitigates adsorption on surface, accelerates conversion intermediates. strategic doping structure introduces novel approach developing electrooxidation.

Language: Английский

Pb-Pd Alloy Catalysts with Intercalated Pb Atoms: Optimized Electronic and Lattice Structures for Enhanced Electrochemical Ethanol Oxidation DOI
Yonghui Ye, Yu Zhang,

Xintong Yan

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Pb–Pd binary catalysts with excellent activity in the EOR, which is explained by electronic transfer, bifunctional effects, and d-band center adjustments.

Language: Английский

Citations

0
Integration of Phosphorus in PdCr Metallene for Enhanced CO-Tolerant Alcohol Electrooxidation DOI

Haiting Liu,

Tong Li,

Zizhan Wu

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 64(1), P. 123 - 132

Published: Dec. 24, 2024

Pd-based alloys are among the most attractive catalysts for direct alcohol fuel cells. However, their widespread use is limited by high cost of Pd and susceptibility to deactivation surface-adsorbed reaction intermediates, particularly CO. In this study, we engineered an ultrathin 2D PdCr metallene minimize usage doped it with phosphorus enhance its CO tolerance. The resulting P-PdCr demonstrated significantly higher activity, stability, tolerance electrooxidation various alcohols compared commercial Pd/C catalysts. Particularly, methanol oxidation (MOR), catalyst achieved a mass activity 2.64 A mg–1Pd specific 5.81 mA cm–2, maintaining remarkable stability over duration 27 h. Density functional theory calculations revealed that enhanced performance attributed incorporation Cr P atoms into structure. This reduces energy barriers potential-determining step in MOR process, mitigates adsorption on surface, accelerates conversion intermediates. strategic doping structure introduces novel approach developing electrooxidation.

Language: Английский

Citations

2