Confined Ultrathin Pd‐Ce Nanowires with Outstanding Moisture and SO 2 Tolerance in Methane Combustion
Abstract
Abstract An efficient strategy (enhanced metal oxide interaction and core–shell confinement to inhibit the sintering of noble metal) is presented confined ultrathin Pd‐CeO x nanowire (2.4 nm) catalysts for methane combustion, which enable CH 4 total oxidation at a low temperature of 350 °C, much lower than that of a commercial Pd/Al 2 O 3 catalyst (425 °C). Importantly, unexpected stability was observed even under harsh conditions (800 °C, water vapor, and SO 2 ), owing to the confinement and shielding effect of the porous silica shell together with the promotion of CeO 2 . Pd‐CeO x solid solution nanowires (Pd‐Ce NW) as cores and porous silica as shells (Pd‐CeNW@SiO 2 ) were rationally prepared by a facile and direct self‐assembly strategy for the first time. This strategy is expected to inspire more active and stable catalysts for use under severe conditions (vehicle emissions control, reforming, and water–gas shift reaction).
- Authors:
-
[3];
[5]
- Institute of Applied Chemistry College of Chemistry Nanchang University Nanchang 330031 P. R. China, Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37830 USA
- Institute of Applied Chemistry College of Chemistry Nanchang University Nanchang 330031 P. R. China
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China, Department of Chemistry University of Tennessee Knoxville TN 37996 USA
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37830 USA, Department of Chemistry University of Tennessee Knoxville TN 37996 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1460458
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Angewandte Chemie
- Additional Journal Information:
- Journal Name: Angewandte Chemie Journal Volume: 130 Journal Issue: 29; Journal ID: ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
Citation Formats
Peng, Honggen, Rao, Cheng, Zhang, Ning, Wang, Xiang, Liu, Wenming, Mao, Wenting, Han, Lu, Zhang, Pengfei, and Dai, Sheng. Confined Ultrathin Pd‐Ce Nanowires with Outstanding Moisture and SO 2 Tolerance in Methane Combustion. Germany: N. p., 2018.
Web. doi:10.1002/ange.201803393.
Peng, Honggen, Rao, Cheng, Zhang, Ning, Wang, Xiang, Liu, Wenming, Mao, Wenting, Han, Lu, Zhang, Pengfei, & Dai, Sheng. Confined Ultrathin Pd‐Ce Nanowires with Outstanding Moisture and SO 2 Tolerance in Methane Combustion. Germany. https://doi.org/10.1002/ange.201803393
Peng, Honggen, Rao, Cheng, Zhang, Ning, Wang, Xiang, Liu, Wenming, Mao, Wenting, Han, Lu, Zhang, Pengfei, and Dai, Sheng. Tue .
"Confined Ultrathin Pd‐Ce Nanowires with Outstanding Moisture and SO 2 Tolerance in Methane Combustion". Germany. https://doi.org/10.1002/ange.201803393.
@article{osti_1460458,
title = {Confined Ultrathin Pd‐Ce Nanowires with Outstanding Moisture and SO 2 Tolerance in Methane Combustion},
author = {Peng, Honggen and Rao, Cheng and Zhang, Ning and Wang, Xiang and Liu, Wenming and Mao, Wenting and Han, Lu and Zhang, Pengfei and Dai, Sheng},
abstractNote = {Abstract An efficient strategy (enhanced metal oxide interaction and core–shell confinement to inhibit the sintering of noble metal) is presented confined ultrathin Pd‐CeO x nanowire (2.4 nm) catalysts for methane combustion, which enable CH 4 total oxidation at a low temperature of 350 °C, much lower than that of a commercial Pd/Al 2 O 3 catalyst (425 °C). Importantly, unexpected stability was observed even under harsh conditions (800 °C, water vapor, and SO 2 ), owing to the confinement and shielding effect of the porous silica shell together with the promotion of CeO 2 . Pd‐CeO x solid solution nanowires (Pd‐Ce NW) as cores and porous silica as shells (Pd‐CeNW@SiO 2 ) were rationally prepared by a facile and direct self‐assembly strategy for the first time. This strategy is expected to inspire more active and stable catalysts for use under severe conditions (vehicle emissions control, reforming, and water–gas shift reaction).},
doi = {10.1002/ange.201803393},
journal = {Angewandte Chemie},
number = 29,
volume = 130,
place = {Germany},
year = {Tue Jun 12 00:00:00 EDT 2018},
month = {Tue Jun 12 00:00:00 EDT 2018}
}
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