Interstitial C/N-Doped Core-Shell Catalyst

Suppresses Metal Dissolution

Atomic-scale interfacial anchoring dramatically enhances the stability of the core-shell structure under acidic and high-potential conditions.

Wang, Changwei · Jia, Yanyan · Zhang, Xiaguang · Tu, Wei · Dai, Sheng · Wang, Yucheng · Zhou, Zhiyou · Xie, Zhaoxiong · Fan, Fengru

Angewandte Chemie - International Edition 2026

Specifications

Maximum potential for structural integrity

{'zh': '1.50', 'en': '1.50'} V

Pt dissolution reduction factor

{'zh': '48.5', 'en': '48.5'} ×

Pd dissolution reduction factor

{'zh': '13.9', 'en': '13.9'} ×

Advantages

Withstands high potentials

After doping, the core-shell structure remains intact at potentials up to 1.50 V, far exceeding the undoped sample.

Over an order of magnitude less dissolution

Compared to the undoped sample, Pt dissolution is reduced by 48.5 times and Pd by 13.9 times.

Generalizable to other systems

This strategy is applicable to Pd-Au and Pd-Ag systems, establishing a general principle for stabilizing multimetallic heterointerfaces.

Applications

• Low-Pt Electrocatalysts：Achieve high stability with minimal Pt, reducing precious metal usage
• Fuel Cell Catalysts：Maintain structural integrity under acidic high potentials, extending fuel cell lifetime
• Acidic Oxygen Evolution Reaction：Operate stably at relevant OER potentials with suppressed noble metal dissolution
• Water Electrolysis：Stable catalysis at high potentials enables efficient water electrolysis