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Title: Confined Ultrathin Pd-Ce Nanowires with Outstanding Moisture and SO2 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:
 [1];  [2];  [2];  [2];  [2];  [3]; ORCiD logo [3];  [4]; ORCiD logo [5]
  1. Nanchang Univ. (China). Inst. of Applied Chemistry; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Nanchang Univ. (China). Inst. of Applied Chemistry
  3. Shanghai Jiao Tong Univ. (China)
  4. Shanghai Jiao Tong Univ. (China); Univ. of Tennessee, Knoxville, TN (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States); Nanchang Univ. (China); Shanghai Jiao Tong Univ. (China)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); Natural Science Foundation of Jiangxi Province; Foundation of State Key Lab. of Coal Clean Utilization and Ecological Chemical Engineering, China
OSTI Identifier:
1479715
Alternate Identifier(s):
OSTI ID: 1459724
Grant/Contract Number:  
AC05-00OR22725; 2016YFC0205900; 21503106; 21567016; 21773106; 20171BCB23016; 20171BAB203024; 2016-15
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Angewandte Chemie (International Edition)
Additional Journal Information:
Journal Volume: 57; Journal Issue: 29; Journal ID: ISSN 1433-7851
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; cerium; core-shell materials; methane oxidation; palladium; solid solutions

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 SO2 Tolerance in Methane Combustion. United States: N. p., 2018. Web. doi:10.1002/anie.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 SO2 Tolerance in Methane Combustion. United States. https://doi.org/10.1002/anie.201803393
Peng, Honggen, Rao, Cheng, Zhang, Ning, Wang, Xiang, Liu, Wenming, Mao, Wenting, Han, Lu, Zhang, Pengfei, and Dai, Sheng. 2018. "Confined Ultrathin Pd-Ce Nanowires with Outstanding Moisture and SO2 Tolerance in Methane Combustion". United States. https://doi.org/10.1002/anie.201803393. https://www.osti.gov/servlets/purl/1479715.
@article{osti_1479715,
title = {Confined Ultrathin Pd-Ce Nanowires with Outstanding Moisture and SO2 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/anie.201803393},
url = {https://www.osti.gov/biblio/1479715}, journal = {Angewandte Chemie (International Edition)},
issn = {1433-7851},
number = 29,
volume = 57,
place = {United States},
year = {Tue May 22 00:00:00 EDT 2018},
month = {Tue May 22 00:00:00 EDT 2018}
}

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Cited by: 121 works
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Figures / Tables:

Scheme 1 Scheme 1: Formation process and catalytic application of Pd-CeNW@SiO2.

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Works referenced in this record:

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Catalytic Oxidation of Chlorobenzene over Mn x Ce 1– x O 2 /HZSM-5 Catalysts: A Study with Practical Implications
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Core–Shell NiO@PdO Nanoparticles Supported on Alumina as an Advanced Catalyst for Methane Oxidation
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Systematic Identification of Promoters for Methane Oxidation Catalysts Using Size- and Composition-Controlled Pd-Based Bimetallic Nanocrystals
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The Metal-Support Interaction Concerning the Particle Size Effect of Pd/Al 2 O 3 on Methane Combustion
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Surfactant-Assisted Stabilization of Au Colloids on Solids for Heterogeneous Catalysis
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Nanofaceted PdO Sites in PdCe Surface Superstructures: Enhanced Activity in Catalytic Combustion of Methane
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Works referencing / citing this record:

High‐Performance Ultrathin Co 3 O 4 Nanosheet Supported PdO/CeO 2 Catalysts for Methane Combustion
journal, March 2019


Ni@HC Core–Shell Structured Catalysts for Dry Reforming of Methane and Carbon Dioxide
journal, July 2019


Ultrafine PdO x nanoparticles on spinel oxides by galvanic displacement for catalytic combustion of methane
journal, January 2019


MOF-derived Ni@NC catalyst: synthesis, characterization, and application in one-pot hydrogenation and reductive amination
journal, January 2019


Synthesis, growth mechanisms, and applications of palladium-based nanowires and other one-dimensional nanostructures
journal, January 2019


Tuning Acidity of Sulfonated Mesoporous Polymers (MP−SO 3 H) for Efficient Tetrahydropyranylation of Alcohols at Room Temperature
journal, January 2020


Bowtie-Shaped NiCo 2 O 4 Catalysts for Low-Temperature Methane Combustion
journal, January 2019


Boosting the catalysis of gold by O2 activation at Au-SiO2 interface
journal, January 2020


Templated synthesis of nickel nanoparticles embedded in a carbon layer within silica capsules
journal, January 2020


In situ DRIFT spectroscopy insights into the reaction mechanism of CO and toluene co-oxidation over Pt-based catalysts
journal, January 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.