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Sinter-Resistant Nanoparticle Catalysts Achieved by 2D Boron Nitride-Based Strong Metal–Support Interactions: A New Twist on an Old Story
- Source :
- ACS Central Science, Vol 6, Iss 9, Pp 1617-1627 (2020), ACS Central Science
- Publication Year :
- 2020
- Publisher :
- American Chemical Society, 2020.
-
Abstract
- Strong metal–support interaction (SMSI) is recognized as a pivotal strategy in hetereogeneous catalysis to prevent the sintering of metal nanoparticles (NPs), but issues including restriction of supports to reducible metal oxides, nonporous architecture, sintering by thermal treatment at >800 °C, and unstable nature limit their practical application. Herein, the construction of non-oxide-derived SMSI nanocatalysts based on highly crystalline and nanoporous hexagonal boron nitride (h-BN) 2D materials was demonstrated via in situ encapsulation and reduction using NaBH4, NaNH2, and noble metal salts as precursors. The as-prepared nanocatalysts exhibited robust thermal stability and sintering resistance to withstand thermal treatment at up to 950 °C, rendering them with high catalytic efficiency and durability in CO oxidation even in the presence of H2O and hydrocarbon simulated to realistic exhaust systems. More importantly, our generic strategy offers a novel and efficient avenue to design ultrastable hetereogeneous catalysts with diverse metal and support compositions and architectures.<br />Construction of strong metal−support interaction (SMSI) based on nanoporous and highly crystalline hexagonal boron nitride (h-BN) is demonstrated via an in situ encapsulation and reduction pathway.
- Subjects :
- Materials science
010405 organic chemistry
General Chemical Engineering
Nanoparticle
Sintering
General Chemistry
010402 general chemistry
01 natural sciences
0104 chemical sciences
Catalysis
Metal
chemistry.chemical_compound
Chemistry
Chemical engineering
chemistry
Boron nitride
visual_art
visual_art.visual_art_medium
Metal nanoparticles
QD1-999
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 23747951
- Volume :
- 6
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- ACS Central Science
- Accession number :
- edsair.doi.dedup.....84afbcb23b27d36d6bd46b1b525a8b56