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

doi:10.1002/cssc.201902705

This content will become publicly available on November 13, 2020

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

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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)O ₃, BaSrBi(ZrHfTiFe)O ₃ and Ru/BaSrBi(ZrHfTiFe)O ₃ were crystallized as single-phase perovskite structures through ultrasonication exposure without calcination. Of utmost importance, the entropically-driven stability of Ru/BaSrBi(ZrHfTiFe)O ₃ with excellent dispersion of Ru in the perovskite phase, bestowed the nanoparticles of Ru/BaSrBi(ZrHfTiFe)O ₃ with good catalytic activity for CO oxidation.

Authors:

Okejiri, Francis ^[1]; Zhang, Zihao ^[1]; Liu, Jixing ^[1]; Liu, Miaomiao ^[1];

^[2]; Dai, Sheng ^[3]

Univ. of Tennessee, Knoxville, TN (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Publication Date:: 2019-11-13

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 Name: ChemSusChem; 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.

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                    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.

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                    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.

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@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       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {11}

}

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