J Catalysis 24 04 2021 Accepted manuscript.pdf (1.46 MB)
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Boosting electrocatalytic oxidation of formic acid on SnO2-decorated Pd nanosheets

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journal contribution
posted on 05.05.2021, 10:34 by Ya-Wei Zhou, Yafeng Chen, Xianxian Qin, Kun Jiang, Wen-Feng LinWen-Feng Lin, Wen-Bin Cai
Formic acid (HCOOH), as a natural biomass, is a promising feedstock for low temperature fuel cells, and rational development of efficient catalysts for electrochemical dehydrogenation of HCOOH plays a key role toward its full chemical energy utilization. Herein, Pd nanosheets decorated with SnO2 nanoflakes (denoted hereafter as Pd@SnO2-NSs) are designed as a composite catalyst, showing superior performance for formic acid electro-oxidation, as compared to pristine Pd nanosheets (Pd-NSs). In situ attenuated total reflection infrared (ATR-IR) spectroscopic results suggest a promoted formate pathway on the Pd@SnO2-NSs with a suppressed accumulation of CO poisoning species. DFT calculations further indicate that the Pd (111) surface modified with SnO2 has lower energy barriers for the bidentate formate formation, the bidentate to monodentate formate transformation and the C-H bond scission.

Funding

National Natural Science Foundation of China (NSFC, Nos. 21733004 and 22002088)

International Cooperation Program of STCSM (No. 17520711200)

Shanghai Sailing Program (No. 20YF1420500)

Low Cost High Performance Novel Catalysts for Direct Alcohol Alkaline Fuel Cells using anion exchange membrane and bio-fuels

Engineering and Physical Sciences Research Council

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Newton Fund (NAF¥R1¥191294)

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Journal of Catalysis

Volume

399

Pages

8-14

Publisher

Elsevier BV

Version

AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the journal Journal of Catalysis and the definitive published version is available at https://doi.org/10.1016/j.jcat.2021.04.024.

Acceptance date

24/04/2021

Publication date

2021-05-04

Copyright date

2021

ISSN

0021-9517

Language

en

Depositor

Prof Wen Feng Lin. Deposit date: 4 May 2021