Pt/CeO2 Catalyst

Self-cleaning S for 100 h

CO2-induced reverse lattice oxygen spillover dynamically removes sulfur deposits at the Pt-O-Ce interface, maintaining DRM activity for 100 h in H2S-containing streams.

Liu, Jun · Deng, Jiang · Zheng, Jiajia · Sun, Chunning · Li, Jin · Chen, Xin · Shen, Yongjie · Xie, Ming · Cortés, Emiliano · Zhang, Dengsong

Angewandte Chemie - International Edition 2026

Specifications

DRM activity retention time

{'zh': '100', 'en': '100'} h

Advantages

Dynamically removes sulfur deposits

CO2-induced reverse lattice oxygen spillover oxidizes sulfur to SO2, enabling self-cleaning.

100 h activity retention

Maintains constant DRM activity for 100 h in H2S-containing streams without regeneration.

Broad sulfur resistance mechanism

Reaction-driven adaptive restructuring amplifies the RLOS effect, paving a design route.

Applications

• Dry reforming catalysts：Process sulfur-containing biogas directly, saving desulfurization.
• Biogas upgrading：Anti-sulfur catalyst enables direct reforming of raw biogas to syngas.
• Biomass-derived hydrogen：Stable hydrogen production from H2S-containing biomass-derived reformate.
• SOFC anodes：Sulfur resistance extends SOFC anode lifetime in sulfur-containing fuels.