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Nano Research 2022, 15(5): 3920-3926 https://doi.org/10.1007/s12274-021-4049-9
Research Article | Issue | Published: 28 January 2022

Synergistic combination of Pd nanosheets and porous Bi(OH)3 boosts activity and durability for ethanol oxidation reaction

Show Author's Information Mingyu Chu2,§,  Jialu Huang1,§,  Jin Gong2,§,  Yi Qu4,  Guoling Chen4,  Hu Yang1,  Xuchun Wang2,3,  Qixuan Zhong2,  Chengwei Deng4( ),  Muhan Cao2,  Jinxing Chen2,  Xiaolei Yuan1,2( ),  Qiao Zhang2
School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, No. 199 Ren’ai Road, Suzhou 215123, China
Department of Chemistry, University of Western Ontario, London, Ontario N6A5B7, Canada
State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources, 2965 Dongchuan Road, Shanghai 200245, China

§ Mingyu Chu, Jialu Huang, and Jin Gong contributed equally to this work.

Keywords:
ethanol oxidation reaction, CO tolerance, Pd nanosheets, Bi(OH)3 species
Topics:
Electrocatalysts
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Chu M, Huang J, Gong J, et al. Synergistic combination of Pd nanosheets and porous Bi(OH)3 boosts activity and durability for ethanol oxidation reaction. Nano Research, 2022, 15(5): 3920-3926. https://doi.org/10.1007/s12274-021-4049-9
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Abstract Full text Electronic supplementary material About this article

Highly active and durable Pd-based electrocatalysts for ethanol oxidation reaction (EOR) play a crucial role in the commercialization of direct ethanol fuel cells (DEFCs). However, the poisonous intermediates (especially adsorbed CO species (COad)) formed during the EOR process can easily adsorb and block the active sites on Pd electrodes, which in turn limits the catalytic efficiency. Hence, we present a series of Pd-based composites with a strong coupling interface consisting of Pd nanosheets and amorphous Bi(OH)3 species. The incorporation of Bi(OH)3 can induce an electron-rich state adjacent to the Pd sites and effectively separate the Pd ensemble, leading to excellent CO tolerance. The optimal Pd-Bi(OH)3 NSs catalyst manifests a mass activity of 2.2 A·mgPd−1, which is 5.7 and 2.0 times higher than that of Pd NSs and commercial Pd/C catalyst, respectively. Further CO-stripping experiments and CO-DRIFTS tests confirm the excellent CO tolerance on Pd-Bi(OH)3 NSs electrode, leading to the enhanced EOR durability.


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About this article

Synergistic combination of Pd nanosheets and porous Bi(OH)3 boosts activity and durability for ethanol oxidation reaction

Show Author's information Mingyu Chu2,§, Jialu Huang1,§, Jin Gong2,§, Yi Qu4, Guoling Chen4, Hu Yang1, Xuchun Wang2,3, Qixuan Zhong2, Chengwei Deng4( ), Muhan Cao2, Jinxing Chen2, Xiaolei Yuan1,2( ), Qiao Zhang2
School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, No. 199 Ren’ai Road, Suzhou 215123, China
Department of Chemistry, University of Western Ontario, London, Ontario N6A5B7, Canada
State Key Laboratory of Space Power-sources Technology, Shanghai Institute of Space Power-Sources, 2965 Dongchuan Road, Shanghai 200245, China

§ Mingyu Chu, Jialu Huang, and Jin Gong contributed equally to this work.

Abstract

Highly active and durable Pd-based electrocatalysts for ethanol oxidation reaction (EOR) play a crucial role in the commercialization of direct ethanol fuel cells (DEFCs). However, the poisonous intermediates (especially adsorbed CO species (COad)) formed during the EOR process can easily adsorb and block the active sites on Pd electrodes, which in turn limits the catalytic efficiency. Hence, we present a series of Pd-based composites with a strong coupling interface consisting of Pd nanosheets and amorphous Bi(OH)3 species. The incorporation of Bi(OH)3 can induce an electron-rich state adjacent to the Pd sites and effectively separate the Pd ensemble, leading to excellent CO tolerance. The optimal Pd-Bi(OH)3 NSs catalyst manifests a mass activity of 2.2 A·mgPd−1, which is 5.7 and 2.0 times higher than that of Pd NSs and commercial Pd/C catalyst, respectively. Further CO-stripping experiments and CO-DRIFTS tests confirm the excellent CO tolerance on Pd-Bi(OH)3 NSs electrode, leading to the enhanced EOR durability.

Keywords: ethanol oxidation reaction, CO tolerance, Pd nanosheets, Bi(OH)3 species

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Publication history
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Acknowledgements

Publication history

Received: 08 October 2021
Revised: 25 November 2021
Accepted: 06 December 2021
Published: 28 January 2022
Issue date: May 2022

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 51922073 and 21902109), the Natural Science Foundation of Jiangsu Province (Nos. BK20200960 and BK20180097), the Natural Science Foundation of Higher Education in Jiangsu Province (No. 20KJB150041), and the Natural Science Foundation of Nantong University for High-Level Talent (No. 03083033). We also acknowledge the financial support from the 111 Project, Collaborative Innovation Center of Suzhou Nano Science, Technology (NANO-CIC) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

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