Atomically Dispersed Ru Species Induced by Strong Metal–Support Interaction for Electrochemical Methane Reforming
During the high-temperature oxygen evolution reaction for CO<sub>2</sub> electrolysis in solid oxide electrolysis cells (SOECs), the key elementary process of O<sup>2-</sup> transfer is restricted by the high anodic oxygen pressure thermodynamically, thus requiring a high external voltage [open-circuit voltage (OCV)] to drive the electrolysis reaction. Herein, electrochemical CH<sub>4</sub> reforming is introduced to the SOEC anode, which remarkably lowers the anodic oxygen pressure and OCV, finally reducing the energy demand from 3.12 to 0.11 kW h per cubic meter of CO. Meanwhile, atomically dispersed Ru species is anchored on the anode surface due to the strong metal-support interaction, which exhibits superior CH<sub>4</sub> reforming activity (90% of CO selectivity) and stability (300 h) to the infiltrated Ru nanoparticles and doped Ru species in the bulk lattice at 600 °C. This work proposes an efficient strategy to boost the SOEC performance thermodynamically and produce value-added chemicals at both the cathode and anode of SOEC simultaneously.
Authors
- Qingxue Liu
- Chaobin Zeng
- Guoxiong Wang (ORCID: https://orcid.org/0000-0001-6042-1171)
- Rongtan Li (ORCID: https://orcid.org/0000-0003-2061-3368)
- Xinhe Bao (ORCID: https://orcid.org/0000-0001-9404-6429)
- Hiroaki Matsumoto (ORCID: https://orcid.org/0000-0003-0568-1258)
- Geng Zou (ORCID: https://orcid.org/0000-0002-8360-6707)
- Mingrun Li
- Meilin Liu (ORCID: https://orcid.org/0000-0002-6188-2372)
- Jingcheng Yu (ORCID: https://orcid.org/0000-0003-0222-5046)
- Yige Guo (ORCID: https://orcid.org/0000-0002-9761-4484)
- Yuefeng Song (ORCID: https://orcid.org/0000-0001-7383-0812)
- Tianfu Liu (ORCID: https://orcid.org/0000-0002-4130-0080)
- Luozhen Jiang
- Xiaomin Zhang (ORCID: https://orcid.org/0000-0003-3847-8141)
- Houfu Lv (ORCID: https://orcid.org/0000-0003-2282-541X)
- Weicheng Feng
Institutions
- Georgia Institute of Technology (US)
- Dalian Institute of Chemical Physics (CN)
- Chinese Academy of Sciences (CN)
- Fudan University (CN)
- Shanghai Advanced Research Institute (CN)
- Dalian National Laboratory for Clean Energy (CN)
- Collaborative Innovation Center of Chemistry for Energy Materials (CN)
- University of Chinese Academy of Sciences (CN)
- Hitachi (Japan) (JP)
Publication Details
- Journal
- Journal of the American Chemical Society
- Published
- 2024-11-08
- DOI
- https://doi.org/10.1021/jacs.4c10729
- Citations
- 32
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 3.75
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- State Key Laboratory of Catalysis
- University of Chinese Academy of Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Yulin University
- Dalian Institute of Chemical Physics
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities
- Shanghai Advanced Research Institute, Chinese Academy of Sciences
- Dalian National Laboratory for Clean Energy