Highly Stable Supported Cu–Ni Dilute Alloy Catalyst for Efficient CO <sub>2</sub> Reforming of Methane
CO<sub>2</sub> reforming of methane, also known as dry reforming of methane, offers promising prospects for the catalytic conversion of CO<sub>2</sub> and CH<sub>4</sub> to produce H<sub>2</sub>, but low-cost catalysts with high activity and stability in operation under severe conditions are needed. We now report such a catalyst, consisting of copper-nickel nanoparticles on a support. The catalyst operated with high activity for more than 1200 h of continuous operation in a flow reactor with a feed of CH<sub>4</sub>:CO<sub>2</sub>:N<sub>2</sub> in a molar ratio of 1:1:1. <i>In-situ</i> X-ray absorption spectra show that the catalyst consisted of a dilute alloy of copper in nickel during operation, being resistant to metal sintering and the formation of carbonaceous deposits even at 700 °C. The data are consistent with the suggestion that the catalyst was a single-atom alloy and point to the possibility of a range of applications of such catalysts.
Authors
- Yongwen Tao
- Lizhuo Wang
- Wenjie Yang
- Jiyun Hong
- Jun Huang
- Brian S. Haynes
- Haosen Chang
- Bruce C. Gates
- Yuhang Liang
- Fernando Vila
- Jianhang Hu
- Simon R. Bare
- Zichun Wang
Institutions
- Kunming University of Science and Technology (CN)
- The University of Sydney (AU)
- University of Washington (US)
- SLAC National Accelerator Laboratory (US)
- University of California System (US)
- Institute of Catalysis and Petrochemistry (RU)
- China Nonferrous Metal Mining (China) (CN)
- Green Technology (US)
- Beijing Advanced Sciences and Innovation Center (CN)
- Beijing University of Chemical Technology (CN)
Publication Details
- Journal
- Journal of the American Chemical Society
- Published
- 2026-01-27
- DOI
- https://doi.org/10.1021/jacs.5c20379
- Citations
- 1
- Primary Topic
- Catalysts for Methane Reforming
- Type
- article
- Field-Weighted Citation Impact
- 12.85