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Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation. / Svintsitskiy, Dmitry A.; Kibis, Lidiya S.; Stadnichenko, Andrey I. et al.

In: ChemCatChem, Vol. 12, No. 3, 06.02.2020, p. 867-880.

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

Harvard

Svintsitskiy, DA, Kibis, LS, Stadnichenko, AI, Slavinskaya, EM, Romanenko, AV, Fedorova, EA, Stonkus, OA, Doronkin, DE, Marchuk, V, Zimina, A, Casapu, M, Grunwaldt, JD & Boronin, AI 2020, 'Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation', ChemCatChem, vol. 12, no. 3, pp. 867-880. https://doi.org/10.1002/cctc.201901719

APA

Svintsitskiy, D. A., Kibis, L. S., Stadnichenko, A. I., Slavinskaya, E. M., Romanenko, A. V., Fedorova, E. A., Stonkus, O. A., Doronkin, D. E., Marchuk, V., Zimina, A., Casapu, M., Grunwaldt, J. D., & Boronin, A. I. (2020). Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation. ChemCatChem, 12(3), 867-880. https://doi.org/10.1002/cctc.201901719

Vancouver

Svintsitskiy DA, Kibis LS, Stadnichenko AI, Slavinskaya EM, Romanenko AV, Fedorova EA et al. Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation. ChemCatChem. 2020 Feb 6;12(3):867-880. Epub 2019 Oct 15. doi: 10.1002/cctc.201901719

Author

Svintsitskiy, Dmitry A. ; Kibis, Lidiya S. ; Stadnichenko, Andrey I. et al. / Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation. In: ChemCatChem. 2020 ; Vol. 12, No. 3. pp. 867-880.

BibTeX

@article{c64910aa8bf847e0b91c97b05b2d3e31,
title = "Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation",
abstract = "Two series of Pt/γ-Al2O3 catalysts for low temperature NH3 oxidation were prepared using Pt(NO3)4 and H2PtCl6 precursors. Using both precursors results in the formation of small Pt particles (d<1.5 nm), however, Cl-containing Pt precursors give a higher fraction of highly dispersed Pt species. Such species show high stability against thermal or H2 treatment probably due to the presence of a substantial amount of chlorine on the surface. Treatment of the samples prepared from Pt(NO3)4 with H2 leads to the formation of metallic Pt nanoparticles accompanied by the improvement of catalytic activity in NH3 oxidation at T<200 °C. The main products of ammonia oxidation at temperatures below 250 °C were molecular nitrogen and nitrous oxide with the N2 selectivity reaching 80 %. Operando XANES/EXAFS revealed that even after H2 pretreatment at least 40 % of Pt surface remains in oxidized state under reaction conditions resulting in the appearance of N2O as a by-product.",
keywords = "ammonia slip catalyst, NH, operando spectroscopy, platinum, Pt/AlO, RAY-ABSORPTION SPECTROSCOPY, EMISSION CONTROL, NO OXIDATION, SELECTIVE OXIDATION, Pt, PLATINUM, CO OXIDATION, Al2O3, OXYGEN, NH3, NITROGEN, PARTICLE-SIZE, AMMONIA OXIDATION, Pt/Al2O3",
author = "Svintsitskiy, {Dmitry A.} and Kibis, {Lidiya S.} and Stadnichenko, {Andrey I.} and Slavinskaya, {Elena M.} and Romanenko, {Anatoly V.} and Fedorova, {Elizaveta A.} and Stonkus, {Olga A.} and Doronkin, {Dmitry E.} and Vasyl Marchuk and Anna Zimina and Maria Casapu and Grunwaldt, {Jan Dierk} and Boronin, {Andrei I.}",
note = "Publisher Copyright: {\textcopyright} 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.",
year = "2020",
month = feb,
day = "6",
doi = "10.1002/cctc.201901719",
language = "English",
volume = "12",
pages = "867--880",
journal = "ChemCatChem",
issn = "1867-3880",
publisher = "Wiley - VCH Verlag GmbH & CO. KGaA",
number = "3",

}

RIS

TY - JOUR

T1 - Insight into the Nature of Active Species of Pt/Al2O3 Catalysts for low Temperature NH3 Oxidation

AU - Svintsitskiy, Dmitry A.

AU - Kibis, Lidiya S.

AU - Stadnichenko, Andrey I.

AU - Slavinskaya, Elena M.

AU - Romanenko, Anatoly V.

AU - Fedorova, Elizaveta A.

AU - Stonkus, Olga A.

AU - Doronkin, Dmitry E.

AU - Marchuk, Vasyl

AU - Zimina, Anna

AU - Casapu, Maria

AU - Grunwaldt, Jan Dierk

AU - Boronin, Andrei I.

N1 - Publisher Copyright: © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

PY - 2020/2/6

Y1 - 2020/2/6

N2 - Two series of Pt/γ-Al2O3 catalysts for low temperature NH3 oxidation were prepared using Pt(NO3)4 and H2PtCl6 precursors. Using both precursors results in the formation of small Pt particles (d<1.5 nm), however, Cl-containing Pt precursors give a higher fraction of highly dispersed Pt species. Such species show high stability against thermal or H2 treatment probably due to the presence of a substantial amount of chlorine on the surface. Treatment of the samples prepared from Pt(NO3)4 with H2 leads to the formation of metallic Pt nanoparticles accompanied by the improvement of catalytic activity in NH3 oxidation at T<200 °C. The main products of ammonia oxidation at temperatures below 250 °C were molecular nitrogen and nitrous oxide with the N2 selectivity reaching 80 %. Operando XANES/EXAFS revealed that even after H2 pretreatment at least 40 % of Pt surface remains in oxidized state under reaction conditions resulting in the appearance of N2O as a by-product.

AB - Two series of Pt/γ-Al2O3 catalysts for low temperature NH3 oxidation were prepared using Pt(NO3)4 and H2PtCl6 precursors. Using both precursors results in the formation of small Pt particles (d<1.5 nm), however, Cl-containing Pt precursors give a higher fraction of highly dispersed Pt species. Such species show high stability against thermal or H2 treatment probably due to the presence of a substantial amount of chlorine on the surface. Treatment of the samples prepared from Pt(NO3)4 with H2 leads to the formation of metallic Pt nanoparticles accompanied by the improvement of catalytic activity in NH3 oxidation at T<200 °C. The main products of ammonia oxidation at temperatures below 250 °C were molecular nitrogen and nitrous oxide with the N2 selectivity reaching 80 %. Operando XANES/EXAFS revealed that even after H2 pretreatment at least 40 % of Pt surface remains in oxidized state under reaction conditions resulting in the appearance of N2O as a by-product.

KW - ammonia slip catalyst

KW - NH

KW - operando spectroscopy

KW - platinum

KW - Pt/AlO

KW - RAY-ABSORPTION SPECTROSCOPY

KW - EMISSION CONTROL

KW - NO OXIDATION

KW - SELECTIVE OXIDATION

KW - Pt

KW - PLATINUM

KW - CO OXIDATION

KW - Al2O3

KW - OXYGEN

KW - NH3

KW - NITROGEN

KW - PARTICLE-SIZE

KW - AMMONIA OXIDATION

KW - Pt/Al2O3

UR - http://www.scopus.com/inward/record.url?scp=85075913520&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/c8594a8c-91f1-36d7-9212-193775ac2b4c/

U2 - 10.1002/cctc.201901719

DO - 10.1002/cctc.201901719

M3 - Article

AN - SCOPUS:85075913520

VL - 12

SP - 867

EP - 880

JO - ChemCatChem

JF - ChemCatChem

SN - 1867-3880

IS - 3

ER -

ID: 22575236