2017
DOI: 10.1021/acscatal.7b01370
|View full text |Cite
|
Sign up to set email alerts
|

Structural Dynamics and Evolution of Bismuth Electrodes during Electrochemical Reduction of CO2 in Imidazolium-Based Ionic Liquid Solutions

Abstract: Real-time changes in the composition and structure of bismuth electrodes used for catalytic conversion of CO2 into CO were examined via X-ray absorption spectroscopy (including XANES and EXAFS), electrochemical quartz crystal microbalance (EQCM), and in situ X-ray reflectivity (XR). Measurements were performed with bismuth electrodes immersed in acetonitrile (MeCN) solutions containing a 1-butyl-3-methylimidazolium ([BMIM]+) ionic liquid promoter or electrochemically inactive tetrabutylammonium supporting elec… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

6
41
0

Year Published

2019
2019
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 46 publications
(47 citation statements)
references
References 63 publications
6
41
0
Order By: Relevance
“…When compared with the Ni 55 Bi 45 aerogel, the Bi in the Ni 97 Bi 3 aerogel appears slightly less oxidized. The shapes of the Bi L 3 ‐edges for the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels are similar to the Bi foil, and the whiteline intensity at approximately 13 440 eV is weaker than the reported Bi 2 O 3 . These results, in combination with the XPS results of the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels, and the partial existence of nonuniform Bi particles in the Ni 55 Bi 45 aerogel (see SEM‐EDXS mapping in Figure S4c), indicate that the Bi in the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels is majorly and statistically metallic Bi; however, at the surface Bi is mainly in oxidized state.…”
Section: Resultsmentioning
confidence: 62%
See 1 more Smart Citation
“…When compared with the Ni 55 Bi 45 aerogel, the Bi in the Ni 97 Bi 3 aerogel appears slightly less oxidized. The shapes of the Bi L 3 ‐edges for the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels are similar to the Bi foil, and the whiteline intensity at approximately 13 440 eV is weaker than the reported Bi 2 O 3 . These results, in combination with the XPS results of the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels, and the partial existence of nonuniform Bi particles in the Ni 55 Bi 45 aerogel (see SEM‐EDXS mapping in Figure S4c), indicate that the Bi in the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels is majorly and statistically metallic Bi; however, at the surface Bi is mainly in oxidized state.…”
Section: Resultsmentioning
confidence: 62%
“…Thes hapes of the Bi L 3 -edges for the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels are similar to the Bi foil, and the whiteline intensity at approximately 13 440 eV is weaker than the reported Bi 2 O 3 . [15] These results, . Furthermore,t he surface area and porosity of the as-prepared aerogels were examined using the N 2 physisorption isotherm method ( Figure S12).…”
Section: Forschungsartikelmentioning
confidence: 78%
“…Thes hapes of the Bi L 3 -edges for the Ni 97 Bi 3 and Ni 55 Bi 45 aerogels are similar to the Bi foil, and the whiteline intensity at approximately 13 440 eV is weaker than the reported Bi 2 O 3 . [15] These results,…”
Section: Angewandte Chemiementioning
confidence: 76%
“…Also, as previously stated, the product selectivity and efficiency of the ECO 2 R are strongly affected by a number of parameters including the chemical nature of the electrocatalysts [11,12,13,14], the particle shape/ surface structure [7,8,15,16,17,18,19,20,21,22,23,24,25], atomic composition [24,26,27,28,29,30,31], and particle size [32,33,34,35], among others. Consequently, several electrocatalysts [5,7,8,36,37] as well as experimental conditions such as temperature and pressure [5], pH [38,39], and electrolyte composition [5,40,41,42] have been explored.…”
Section: Introductionmentioning
confidence: 99%