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Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis. / Vedyagin, Aleksey A.; Stoyanovskii, Vladimir O.; Plyusnin, Pavel E. et al.

In: Journal of Alloys and Compounds, Vol. 749, 15.06.2018, p. 155-162.

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

Harvard

Vedyagin, AA, Stoyanovskii, VO, Plyusnin, PE, Shubin, YV, Slavinskaya, EM & Mishakov, IV 2018, 'Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis', Journal of Alloys and Compounds, vol. 749, pp. 155-162. https://doi.org/10.1016/j.jallcom.2018.03.250

APA

Vedyagin, A. A., Stoyanovskii, V. O., Plyusnin, P. E., Shubin, Y. V., Slavinskaya, E. M., & Mishakov, I. V. (2018). Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis. Journal of Alloys and Compounds, 749, 155-162. https://doi.org/10.1016/j.jallcom.2018.03.250

Vancouver

Vedyagin AA, Stoyanovskii VO, Plyusnin PE, Shubin YV, Slavinskaya EM, Mishakov IV. Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis. Journal of Alloys and Compounds. 2018 Jun 15;749:155-162. doi: 10.1016/j.jallcom.2018.03.250

Author

Vedyagin, Aleksey A. ; Stoyanovskii, Vladimir O. ; Plyusnin, Pavel E. et al. / Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis. In: Journal of Alloys and Compounds. 2018 ; Vol. 749. pp. 155-162.

BibTeX

@article{d6c4e803b25049e89608ae23dba80593,
title = "Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis",
abstract = "The bimetallic Pd-Rh three-way catalysts were prepared by an incipient wetness impregnation of γ-Al2O3 with a joint solution of [Pd(NH3)4](NO3)2 and Na3 [Rh(NO2)6]. The ratio of the metals was varied by changing the ratio of the salt-precursors. The samples with Pd:Rh ratio of 3:2, 7:3 and 4:1 were compared in simultaneous oxidation of carbon monoxide, propane, propylene, and reduction of nitrogen monoxide at a lambda factor of 1.003 and 0.95. Stability tests were performed in a prompt thermal aging regime (consecutive heating-cooling cycles with a final temperature of 320, 600 and 800 °C). The samples were characterized by UV–vis and luminescence spectroscopies, and by testing reaction of ethane hydrogenolysis. It was found that the sample with Pd:Rh ratio of 3:2 is characterized with strong palladium-rhodium interaction, which makes this catalyst more stable at high temperature if compare with other alloyed Pd-Rh samples. Moreover, the mechanism of the three-way catalytic process over Pd:Rh (3:2) sample differs from other cases and involves a larger contribution of reactions with nitrogen oxide.",
keywords = "Metal ratio, Metastable Pd-Rh alloy, Partly miscible metals, Stability, Three-way catalysts, PALLADIUM, RHODIUM, 3-WAY CATALYSTS, STABILITY, OXYGEN STORAGE, CO OXIDATION, SOLID-SOLUTION, CARBON-MONOXIDE, C3H6 OXIDATION, BIMETALLIC CATALYSTS",
author = "Vedyagin, {Aleksey A.} and Stoyanovskii, {Vladimir O.} and Plyusnin, {Pavel E.} and Shubin, {Yury V.} and Slavinskaya, {Elena M.} and Mishakov, {Ilya V.}",
year = "2018",
month = jun,
day = "15",
doi = "10.1016/j.jallcom.2018.03.250",
language = "English",
volume = "749",
pages = "155--162",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Effect of metal ratio in alumina-supported Pd-Rh nanoalloys on its performance in three way catalysis

AU - Vedyagin, Aleksey A.

AU - Stoyanovskii, Vladimir O.

AU - Plyusnin, Pavel E.

AU - Shubin, Yury V.

AU - Slavinskaya, Elena M.

AU - Mishakov, Ilya V.

PY - 2018/6/15

Y1 - 2018/6/15

N2 - The bimetallic Pd-Rh three-way catalysts were prepared by an incipient wetness impregnation of γ-Al2O3 with a joint solution of [Pd(NH3)4](NO3)2 and Na3 [Rh(NO2)6]. The ratio of the metals was varied by changing the ratio of the salt-precursors. The samples with Pd:Rh ratio of 3:2, 7:3 and 4:1 were compared in simultaneous oxidation of carbon monoxide, propane, propylene, and reduction of nitrogen monoxide at a lambda factor of 1.003 and 0.95. Stability tests were performed in a prompt thermal aging regime (consecutive heating-cooling cycles with a final temperature of 320, 600 and 800 °C). The samples were characterized by UV–vis and luminescence spectroscopies, and by testing reaction of ethane hydrogenolysis. It was found that the sample with Pd:Rh ratio of 3:2 is characterized with strong palladium-rhodium interaction, which makes this catalyst more stable at high temperature if compare with other alloyed Pd-Rh samples. Moreover, the mechanism of the three-way catalytic process over Pd:Rh (3:2) sample differs from other cases and involves a larger contribution of reactions with nitrogen oxide.

AB - The bimetallic Pd-Rh three-way catalysts were prepared by an incipient wetness impregnation of γ-Al2O3 with a joint solution of [Pd(NH3)4](NO3)2 and Na3 [Rh(NO2)6]. The ratio of the metals was varied by changing the ratio of the salt-precursors. The samples with Pd:Rh ratio of 3:2, 7:3 and 4:1 were compared in simultaneous oxidation of carbon monoxide, propane, propylene, and reduction of nitrogen monoxide at a lambda factor of 1.003 and 0.95. Stability tests were performed in a prompt thermal aging regime (consecutive heating-cooling cycles with a final temperature of 320, 600 and 800 °C). The samples were characterized by UV–vis and luminescence spectroscopies, and by testing reaction of ethane hydrogenolysis. It was found that the sample with Pd:Rh ratio of 3:2 is characterized with strong palladium-rhodium interaction, which makes this catalyst more stable at high temperature if compare with other alloyed Pd-Rh samples. Moreover, the mechanism of the three-way catalytic process over Pd:Rh (3:2) sample differs from other cases and involves a larger contribution of reactions with nitrogen oxide.

KW - Metal ratio

KW - Metastable Pd-Rh alloy

KW - Partly miscible metals

KW - Stability

KW - Three-way catalysts

KW - PALLADIUM

KW - RHODIUM

KW - 3-WAY CATALYSTS

KW - STABILITY

KW - OXYGEN STORAGE

KW - CO OXIDATION

KW - SOLID-SOLUTION

KW - CARBON-MONOXIDE

KW - C3H6 OXIDATION

KW - BIMETALLIC CATALYSTS

UR - http://www.scopus.com/inward/record.url?scp=85044605433&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2018.03.250

DO - 10.1016/j.jallcom.2018.03.250

M3 - Article

AN - SCOPUS:85044605433

VL - 749

SP - 155

EP - 162

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -

ID: 12282846