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Nano Research 2024, 17(4): 2320-2327 https://doi.org/10.1007/s12274-023-6043-x
Research Article | Issue | Published: 23 August 2023

Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO2

Show Author's Information Shuanglong Zhou1,  Zheng Lv1,  Liang Zhao1,  Dan Zhang1,  Zuocao Wang1,  Yu Dai2,  Bin Li3,  Olga Starostenko4,  Jianping Lai1( ),  Lei Wang1,5( )
Key Laboratory of Eco-chemical Engineering, Ministry of Education, Taishan scholar advantage and characteristic discipline team of Eco-chemical process and technology, Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
College of Foreign Languages, Qingdao City University, Qingdao 266106, China
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine
Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Keywords:
electrocatalyst, Pt, ethanol oxidation reaction (EOR), enrichment effect, CO2 selectivity
Topics:
Electrocatalysis
Cite this article:
Zhou S, Lv Z, Zhao L, et al. Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO2. Nano Research, 2024, 17(4): 2320-2327. https://doi.org/10.1007/s12274-023-6043-x
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Abstract Electronic supplementary material About this article

The main problem faced by ethanol oxidation reaction (EOR) includes low activity, poor selectivity, and durability. In the study, we found that polysulfide modified on the surface of PtCu intermetallic (IM)/C can simultaneously enrich hydroxyl and ethanol, which could effectively improve the catalytic activity, CO2 selectivity, and durability of catalyst. The mass activity and the specific activity of the product in 1 M KOH electrolyte reached 17.83 A·mgPt−1 and 24.67 mA·cm−2. The CO2 selectivity of polysulfide modified product achieved 93.5%, which was 30 folds higher than Pt/C. In addition, the catalyst showed high catalytic stability. The mechanism study demonstrates that the surface modified polysulfide could significantly boost the enrichment effect of ethanol and hydroxyl species, accelerating C–C bond cleavage and CO oxidation.

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Publication history
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Acknowledgements

Publication history

Received: 13 June 2023
Revised: 21 July 2023
Accepted: 26 July 2023
Published: 23 August 2023
Issue date: April 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 22001143, 21971132, and 52072197), Youth Innovation and Technology Foundation of Shandong Higher Education Institutions, China (No. 2019KJC004), Outstanding Youth Foundation of Shandong Province, China (No. ZR2019JQ14), Taishan Scholar Young Talent Program (Nos. tsqn201909114 and tsqn201909123), Natural Science Foundation of Shandong Province (Nos. ZR2020YQ34 and ZR2019MB042), Major Scientific and Technological Innovation Project (No. 2019JZZY020405), Major Basic Research Program of Natural Science Foundation of Shandong Province (No. ZR2020ZD09), and the National Natural Science Foundation of China (No. 22002083).

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