Construction of a CeO <sub> <i>x</i> </sub> -Ru Interfacial Structure for Enhanced Olefin Production in Fischer–Tropsch Synthesis
Designing efficient interfacial structures to overcome the low intrinsic activity of low-loading Ru-based catalysts in Fischer–Tropsch synthesis oto olefins (FTO) remains crucial. Herein, we engineered a CeOx-Ru interfacial structure by doping Ce into silica-supported Ru nanoparticles. The optimized 0.1Ce/Ru catalyst (1 wt % Ru) exhibits 1.76-fold higher intrinsic activity than Ce-free Ru, maintaining ∼70% olefin selectivity, suppressing total selectivity of CH4 and CO2 to <6%, and achieving record-high olefin space-time yield with long-term stability. This catalyst also successfully breaks the activity–selectivity trade-off for reported Ru-based FTO catalysts. Characterizations and mechanistic studies verify that Ce incorporation not only generates electron-rich Ru centers at the Ru–Ov-Ce3+ interfacial sites but also constructs channels favorable for H2 activation and transfer; these effects collectively enhance H* reactivity, facilitate CO activation and dissociation, and ultimately boost FTO performance and Ru utilization efficiency.
Authors
- Peipei Zhang (ORCID: https://orcid.org/0000-0001-8171-8636)
- Tiejun Lin
- Yuxin Liu (ORCID: https://orcid.org/0000-0002-8632-2910)
- Hanqing Chen (ORCID: https://orcid.org/0000-0002-2115-3538)
- Yanfang Song
- Kaidi Liu (ORCID: https://orcid.org/0009-0009-8950-6342)
- Kun Gong
- Menghao Su
- Liangshu Zhong
- Yunlei An
- Shan Qiao
Institutions
- University of Shanghai for Science and Technology (CN)
- Chinese Academy of Sciences (CN)
- ShanghaiTech University (CN)
- Shanghai Advanced Research Institute (CN)
- Advanced Technology & Materials (China) (CN)
- Carbon180 (US)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- ACS Catalysis
- Published
- 2026-03-07
- DOI
- https://doi.org/10.1021/acscatal.6c00117
- Primary Topic
- Catalysts for Methane Reforming
- Type
- article
- Field-Weighted Citation Impact
- 0.00