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Title: Sinter-Resistant Nanoparticle Catalysts Achieved by 2D Boron Nitride-Based Strong Metal–Support Interactions: A New Twist on an Old Story

Journal Article · · ACS Central Science
ORCiD logo [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [5]; ORCiD logo [6];  [1]; ORCiD logo [7]; ORCiD logo [6]; ORCiD logo [4]; ORCiD logo [3]
  1. Zhejiang Univ. of Technology, Hangzhou (China); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Arizona State Univ., Tempe, AZ (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  4. Zhejiang Univ. of Technology, Hangzhou (China)
  5. Univ. of Tennessee, Knoxville, TN (United States)
  6. Univ. of California, Riverside, CA (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Natural Science Foundation of China (NSFC); Zhejiang Provincial Natural Science Foundation of China; Fundamental Research Funds for the Central Universities; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1658663
Alternate ID(s):
OSTI ID: 1805023
Journal Information:
ACS Central Science, Vol. 6, Issue 9; ISSN 2374-7943
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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