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https://doi.org/10.21256/zhaw-22928| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Synergistic effects of bimetallic AuPd and La2O3 in the catalytic reduction of NO with CO |
| Authors: | Wang, Xianwei Maeda, Nobutaka Meier, Daniel Matthias |
| et. al: | No |
| DOI: | 10.3390/catal11080916 10.21256/zhaw-22928 |
| Published in: | Catalysts |
| Volume(Issue): | 11 |
| Issue: | 8 |
| Page(s): | 916 |
| Issue Date: | 29-Jun-2021 |
| Publisher / Ed. Institution: | MDPI |
| ISSN: | 2073-4344 |
| Language: | English |
| Subjects: | Bimetallic AuPd; In situ DRIFTS; La2O3; Modulation excitation spectroscopy; NO reduction with CO |
| Subject (DDC): | 660: Chemical engineering |
| Abstract: | Bimetallic AuPd nanoparticles supported on TiO2 are known to catalyze the reduction of NO with CO. Here, we investigated the effects of the addition of lanthanum oxide to a AuPd/TiO2 catalyst with a AuPd particle size of 2.1–2.2 nm. The addition of La2O3 enhanced the catalytic activity; for example, at 250 °C, there was 40.9% NO conversion and 49.3% N2-selectivity for AuPd/TiO2, and 100% NO conversion and 100% N2-selectivity for AuPd-La (1:1)/TiO2. The temperature requiring 100% NO conversion dropped from 400 °C to 200 °C by the simple post-impregnation of La2O3 onto AuPd/TiO2. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) combined with modulation excitation spectroscopy (MES) demonstrated that CO adsorption occurs first on Au atoms and then, within 80 s, moves onto Pd atoms. This transformation between two adsorption sites was facilitated by the addition of La2O3. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/22928 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Materials and Process Engineering (IMPE) |
| Appears in collections: | Publikationen School of Engineering |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 2021_Wang-etal_Synergistic-effects-AuPd-La2O3-catalytic-reduction.pdf | 2.21 MB | Adobe PDF |  View/Open |
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Wang, X., Maeda, N., & Meier, D. M. (2021). Synergistic effects of bimetallic AuPd and La2O3 in the catalytic reduction of NO with CO. Catalysts, 11(8), 916. https://doi.org/10.3390/catal11080916
Wang, X., Maeda, N. and Meier, D.M. (2021) ‘Synergistic effects of bimetallic AuPd and La2O3 in the catalytic reduction of NO with CO’, Catalysts, 11(8), p. 916. Available at: https://doi.org/10.3390/catal11080916.
X. Wang, N. Maeda, and D. M. Meier, “Synergistic effects of bimetallic AuPd and La2O3 in the catalytic reduction of NO with CO,” Catalysts, vol. 11, no. 8, p. 916, Jun. 2021, doi: 10.3390/catal11080916.
WANG, Xianwei, Nobutaka MAEDA und Daniel Matthias MEIER, 2021. Synergistic effects of bimetallic AuPd and La2O3 in the catalytic reduction of NO with CO. Catalysts. 29 Juni 2021. Bd. 11, Nr. 8, S. 916. DOI 10.3390/catal11080916
Wang, Xianwei, Nobutaka Maeda, and Daniel Matthias Meier. 2021. “Synergistic Effects of Bimetallic AuPd and La2O3 in the Catalytic Reduction of NO with CO.” Catalysts 11 (8): 916. https://doi.org/10.3390/catal11080916.
Wang, Xianwei, et al. “Synergistic Effects of Bimetallic AuPd and La2O3 in the Catalytic Reduction of NO with CO.” Catalysts, vol. 11, no. 8, June 2021, p. 916, https://doi.org/10.3390/catal11080916.
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