Journal Article

FZJ-2021-00450

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Understanding the Improved Activity of Dendritic Sn 1 Pb 3 Alloy for the CO 2 Electrochemical Reduction: A Computational–Experimental Investigation

Fan, M. ; Eslamibidgoli, M. J.FZJ* ; Zhu, X.FZJ* ; Garbarino, S. ; Tavares, A. C. ; Eikerling, M.FZJ* ; Guay, D. (Corresponding author)

2020
ACS Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/27121  doi:10.1021/acscatal.0c01785

Abstract: An alloy of Sn and Pb (Sn1Pb3) was prepared by electrodeposition at large negative current. The deposit is porous, with a honeycomb-like primary structure and a dendritic-like secondary structure. The onset potential for the electroreduction of CO2 is 80 mV lower on dendritic Sn1Pb3 as compared to dendritic Pb. The faradaic efficiency for formate formation is close to 100% in the potential range from −1.16 to −1.56 V vs. SHE. Density functional theory (DFT) computations were performed to uncover the origin of the decrease in the onset potential upon alloying Pb with Sn. Explicit treatment of water molecules in DFT calculations turns out as crucial to achieve an agreement with experimentally measured onset potentials.

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Contributing Institute(s):

1. IEK-13 (IEK-13)

Research Program(s):

1. 113 - Methods and Concepts for Material Development (POF3-113) (POF3-113)

Appears in the scientific report 2021

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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