CO <sub>2</sub> ‐Induced Reverse Lattice Oxygen Spillover on Pt/CeO <sub>2</sub> Enables Sulfur‐Resistant Dry Reforming of Methane
ABSTRACT Overcoming sulfur poisoning in dry reforming of methane (DRM), which is a critical process for biogas upgrading, is particularly challenging. In this study, we illustrate that a reverse lattice oxygen spillover (RLOS) from CeO 2 to Pt on the Pt‐O‐Ce interface, induced by CO 2 , can oxidize S into SO 2 , aiding in the removal of S deposits. A low oxygen migration barrier at the Pt–O–Ce interface and Pt's high activity for oxidizing sulfur to SO 2 make Pt/CeO 2 uniquely effective at self‐recovering after H 2 S poisoning. Furthermore, the atomically dispersed Pt/CeO 2 catalyst undergoes reaction driven adaptive restructuring, which amplifies the RLOS effect and enables dynamic S deposition and removal. As a result, the catalysts maintain constant DRM activity for 100 h, even in the presence of H 2 S. This discovery paves the way for designing catalysts that resist sulfur poisoning in H 2 S‐containing streams.
Authors
- Dengsong Zhang (ORCID: https://orcid.org/0000-0003-4280-0068)
- Yongjie Shen (ORCID: https://orcid.org/0009-0004-8496-3900)
- Chunning Sun (ORCID: https://orcid.org/0000-0003-0938-1631)
- Emiliano Cortés (ORCID: https://orcid.org/0000-0001-8248-4165)
- Jun Liu (ORCID: https://orcid.org/0000-0002-7078-8046)
- M. Mousavi (ORCID: https://orcid.org/0000-0002-1535-0244)
- Jin Li
- Xin Chen
- Ming Xie (ORCID: https://orcid.org/0000-0003-2729-9746)
- Haotian Huang
- Jiang Deng (ORCID: https://orcid.org/0000-0002-7619-6228)
- Jiajia Zheng
Institutions
- Nanomaterials Research (United States) (US)
- Catalytic Materials (United States) (US)
- University of Bath (GB)
- Ludwig-Maximilians-Universität München (DE)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2026-05-31
- DOI
- https://doi.org/10.1002/anie.1664469
- Primary Topic
- Catalysts for Methane Reforming
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China