Abstract
Synergy between plasma and catalysis has long been recognized, but efforts to improve synergy and energy efficiency remain both highly desirable and challenging. Herein, β-Mo2C nanorods were coupled with non-thermal plasma (NTP) to catalyze selective CO2 reduction to CO by H2 or CH4. Unprecedented catalytic activity and selectivity were achieved without additional thermal input, and the turnover frequency (TOF) was an order of magnitude higher than that obtained during thermal catalysis. The porous-structured β-Mo2C nanorods not only possessed large accessible surfaces but also facilitated charge deposition to generate a strong local electric field when NTP was coupled. The interplay between β-Mo2C nanorods and NTP boosted the synergy and energy efficiency: the TOF and CO specific energy yield were 1.4–2 times and ∼10 times higher, respectively, than those of β-Mo2C nanoparticles. This strategy of coupling regularly shaped catalytic materials with NTP provides new opportunities to improve the efficiency of plasma-assisted catalytic processes.
Original language | English |
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Pages (from-to) | 3312-3328 |
Number of pages | 17 |
Journal | Chem |
Volume | 6 |
Issue number | 12 |
DOIs | |
State | Published - Dec 3 2020 |
Bibliographical note
Publisher Copyright:© 2020 Elsevier Inc.
Funding
The work was supported by the National Key R&D Program of China (2017YFA0700103 and 2017YFB0602200), the Natural Science Foundation of China (21932002, 21872014, 21577013, 21707015, 21725301, 91645115, 21821004, and 21902018), the Postdoctoral Science Foundation of China (2019T120210 and 2018M641687), and the Natural Science Foundation of Liaoning Province (2019-MS-053). The XAS experiments were conducted at the Beijing Synchrotron Radiation Facility and Shanghai Synchrotron Radiation Facility. D.M. acknowledges support from the Tencent Foundation through the XPLORER PRIZE. C.S. and D.M. designed the study. X.Z. performed most of the reactions. M.Z. Y.Z. and Y.W. performed the electron microscopy study. M.Z. did the in situ XPS experiments. X.Z. C.S. and D.M. wrote the paper. Other authors provided reagents, performed certain experiments, discussed, and revised the paper. The authors declare no competing interests.
Funders | Funder number |
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Tencent Foundation | |
National Natural Science Foundation of China (NSFC) | 21577013, 21707015, 21872014, 21902018, 21725301, 91645115, 21821004, 21932002 |
National Natural Science Foundation of China (NSFC) | |
China Postdoctoral Science Foundation | 2019T120210, 2018M641687 |
China Postdoctoral Science Foundation | |
Natural Science Foundation of Liaoning Province | 2019-MS-053 |
Natural Science Foundation of Liaoning Province | |
National Key Basic Research and Development Program of China | 2017YFB0602200, 2017YFA0700103 |
National Key Basic Research and Development Program of China |
Keywords
- SDG13: Climate action
ASJC Scopus subject areas
- General Chemistry
- Biochemistry
- Environmental Chemistry
- General Chemical Engineering
- Biochemistry, medical
- Materials Chemistry