Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction

Anton S. Konopatsky; Denis V. Leybo; Konstantin L. Firestein; Zakhar I. Popov; Andrey V. Bondarev; Anton M. Manakhov; Elizaveta S. Permyakova; Dmitry V. Shtansky; Dmitri V. Golberg

doi:10.1016/j.jcat.2018.10.016

Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction

Anton S. Konopatsky, Denis V. Leybo, Konstantin L. Firestein, Zakhar I. Popov, Andrey V. Bondarev, Anton M. Manakhov, Elizaveta S. Permyakova, Dmitry V. Shtansky, Dmitri V. Golberg

Research output: Contribution to journal › Article › peer-review

Abstract

Nanohybrid materials made of h-BN nanoparticles (BNNPs) with Ag nanoparticles (AgNPs), covering their surfaces, were employed as catalysts in CO oxidation reaction. Ag/BN nanohybrids (NHs) were produced via AgNO₃ decomposition under UV irradiation in polyethylene glycol (PEG) and its solutions at room temperature. Influence of the synthetic media composition on the synthesis process and resultant NHs structures were investigated. Two different structural types (Ag/BN and polymer-based structure) formed during the synthesis were studied. It was demonstrated that Ag/BN NHs synthesized in a PEG media had possessed the highest Ag concentration and uniform distribution of AgNPs. Catalytic activity tests revealed that the lowest temperature of full CO conversion (194 °C) had been attained to the sample with the highest Ag content. CO oxidation mechanism on the surface of AgNPs was finally proposed based on DFT calculations.

Original language	English
Pages (from-to)	217-227
Number of pages	11
Journal	Journal of Catalysis
Volume	368
DOIs	https://doi.org/10.1016/j.jcat.2018.10.016
Publication status	Published - Dec 2018
Externally published	Yes

Keywords

Ag/BN nanohybrids
Catalytic activity
CO oxidation
DFT calculation
Structural characterization

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10.1016/j.jcat.2018.10.016

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@article{f76280264e784357bb7d0076efa24646,

title = "Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction",

abstract = "Nanohybrid materials made of h-BN nanoparticles (BNNPs) with Ag nanoparticles (AgNPs), covering their surfaces, were employed as catalysts in CO oxidation reaction. Ag/BN nanohybrids (NHs) were produced via AgNO3 decomposition under UV irradiation in polyethylene glycol (PEG) and its solutions at room temperature. Influence of the synthetic media composition on the synthesis process and resultant NHs structures were investigated. Two different structural types (Ag/BN and polymer-based structure) formed during the synthesis were studied. It was demonstrated that Ag/BN NHs synthesized in a PEG media had possessed the highest Ag concentration and uniform distribution of AgNPs. Catalytic activity tests revealed that the lowest temperature of full CO conversion (194 °C) had been attained to the sample with the highest Ag content. CO oxidation mechanism on the surface of AgNPs was finally proposed based on DFT calculations.",

keywords = "Ag/BN nanohybrids, Catalytic activity, CO oxidation, DFT calculation, Structural characterization",

author = "Konopatsky, {Anton S.} and Leybo, {Denis V.} and Firestein, {Konstantin L.} and Popov, {Zakhar I.} and Bondarev, {Andrey V.} and Manakhov, {Anton M.} and Permyakova, {Elizaveta S.} and Shtansky, {Dmitry V.} and Golberg, {Dmitri V.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",

year = "2018",

month = dec,

doi = "10.1016/j.jcat.2018.10.016",

language = "English",

volume = "368",

pages = "217--227",

journal = "Journal of Catalysis",

issn = "0021-9517",

}

TY - JOUR

T1 - Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction

AU - Konopatsky, Anton S.

AU - Leybo, Denis V.

AU - Firestein, Konstantin L.

AU - Popov, Zakhar I.

AU - Bondarev, Andrey V.

AU - Manakhov, Anton M.

AU - Permyakova, Elizaveta S.

AU - Shtansky, Dmitry V.

AU - Golberg, Dmitri V.

PY - 2018/12

Y1 - 2018/12

N2 - Nanohybrid materials made of h-BN nanoparticles (BNNPs) with Ag nanoparticles (AgNPs), covering their surfaces, were employed as catalysts in CO oxidation reaction. Ag/BN nanohybrids (NHs) were produced via AgNO3 decomposition under UV irradiation in polyethylene glycol (PEG) and its solutions at room temperature. Influence of the synthetic media composition on the synthesis process and resultant NHs structures were investigated. Two different structural types (Ag/BN and polymer-based structure) formed during the synthesis were studied. It was demonstrated that Ag/BN NHs synthesized in a PEG media had possessed the highest Ag concentration and uniform distribution of AgNPs. Catalytic activity tests revealed that the lowest temperature of full CO conversion (194 °C) had been attained to the sample with the highest Ag content. CO oxidation mechanism on the surface of AgNPs was finally proposed based on DFT calculations.

AB - Nanohybrid materials made of h-BN nanoparticles (BNNPs) with Ag nanoparticles (AgNPs), covering their surfaces, were employed as catalysts in CO oxidation reaction. Ag/BN nanohybrids (NHs) were produced via AgNO3 decomposition under UV irradiation in polyethylene glycol (PEG) and its solutions at room temperature. Influence of the synthetic media composition on the synthesis process and resultant NHs structures were investigated. Two different structural types (Ag/BN and polymer-based structure) formed during the synthesis were studied. It was demonstrated that Ag/BN NHs synthesized in a PEG media had possessed the highest Ag concentration and uniform distribution of AgNPs. Catalytic activity tests revealed that the lowest temperature of full CO conversion (194 °C) had been attained to the sample with the highest Ag content. CO oxidation mechanism on the surface of AgNPs was finally proposed based on DFT calculations.

KW - Ag/BN nanohybrids

KW - Catalytic activity

KW - CO oxidation

KW - DFT calculation

KW - Structural characterization

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U2 - 10.1016/j.jcat.2018.10.016

DO - 10.1016/j.jcat.2018.10.016

M3 - Article

AN - SCOPUS:85055291306

SN - 0021-9517

VL - 368

SP - 217

EP - 227

JO - Journal of Catalysis

JF - Journal of Catalysis

ER -

Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction

Abstract

Keywords

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