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Title: Room-temperature Synthesis of High-entropy Perovskite Oxide Nanoparticle Catalysts via Ultrasonication-based Method

Abstract

Currently, a sonochemical-based technique for one-pot synthesis of entropy-stabilized perovskite oxide nanoparticle catalysts with high surface area is reported. The high-entropy perovskite oxides were synthesized as monodispersed, spherical nanoparticles with average crystallite size of ~5.9 nm. Taking advantage of the acoustic cavitation phenomenon in ultrasonication process, the nanoparticles of BaSr(ZrHfTi)O3, BaSrBi(ZrHfTiFe)O3 and Ru/BaSrBi(ZrHfTiFe)O3 were crystallized as single-phase perovskite structures through ultrasonication exposure without calcination. Of utmost importance, the entropically-driven stability of Ru/BaSrBi(ZrHfTiFe)O3 with excellent dispersion of Ru in the perovskite phase, bestowed the nanoparticles of Ru/BaSrBi(ZrHfTiFe)O3 with good catalytic activity for CO oxidation.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [2];  [3]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; USDOE
OSTI Identifier:
1574923
Alternate Identifier(s):
OSTI ID: 1576647
Report Number(s):
BNL-212355-2019-JAAM
Journal ID: ISSN 1864-5631
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
ChemSusChem
Additional Journal Information:
Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 1864-5631
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; acoustic cavitation; heterogeneous catalysis; high-entropy perovskites; nanoparticles; ultrasonication

Citation Formats

Okejiri, Francis, Zhang, Zihao, Liu, Jixing, Liu, Miaomiao, Yang, Shize, and Dai, Sheng. Room-temperature Synthesis of High-entropy Perovskite Oxide Nanoparticle Catalysts via Ultrasonication-based Method. United States: N. p., 2019. Web. doi:10.1002/cssc.201902705.
Okejiri, Francis, Zhang, Zihao, Liu, Jixing, Liu, Miaomiao, Yang, Shize, & Dai, Sheng. Room-temperature Synthesis of High-entropy Perovskite Oxide Nanoparticle Catalysts via Ultrasonication-based Method. United States. doi:10.1002/cssc.201902705.
Okejiri, Francis, Zhang, Zihao, Liu, Jixing, Liu, Miaomiao, Yang, Shize, and Dai, Sheng. Wed . "Room-temperature Synthesis of High-entropy Perovskite Oxide Nanoparticle Catalysts via Ultrasonication-based Method". United States. doi:10.1002/cssc.201902705. https://www.osti.gov/servlets/purl/1574923.
@article{osti_1574923,
title = {Room-temperature Synthesis of High-entropy Perovskite Oxide Nanoparticle Catalysts via Ultrasonication-based Method},
author = {Okejiri, Francis and Zhang, Zihao and Liu, Jixing and Liu, Miaomiao and Yang, Shize and Dai, Sheng},
abstractNote = {Currently, a sonochemical-based technique for one-pot synthesis of entropy-stabilized perovskite oxide nanoparticle catalysts with high surface area is reported. The high-entropy perovskite oxides were synthesized as monodispersed, spherical nanoparticles with average crystallite size of ~5.9 nm. Taking advantage of the acoustic cavitation phenomenon in ultrasonication process, the nanoparticles of BaSr(ZrHfTi)O3, BaSrBi(ZrHfTiFe)O3 and Ru/BaSrBi(ZrHfTiFe)O3 were crystallized as single-phase perovskite structures through ultrasonication exposure without calcination. Of utmost importance, the entropically-driven stability of Ru/BaSrBi(ZrHfTiFe)O3 with excellent dispersion of Ru in the perovskite phase, bestowed the nanoparticles of Ru/BaSrBi(ZrHfTiFe)O3 with good catalytic activity for CO oxidation.},
doi = {10.1002/cssc.201902705},
journal = {ChemSusChem},
number = 1,
volume = 13,
place = {United States},
year = {2019},
month = {11}
}

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