Influence of ruthenium addition on sintering of carbon-supported palladium

A. V. Romanenko; E. A. Tyschishin; E. M. Moroz; V. A. Likholobov; V. I. Zaikovskii; S. H. Jhung; Y. S. Park

doi:10.1016/S0926-860X(01)00928-0

Influence of ruthenium addition on sintering of carbon-supported palladium

A. V. Romanenko, E. A. Tyschishin, E. M. Moroz, V. A. Likholobov, V. I. Zaikovskii, S. H. Jhung, Y. S. Park

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

25 Scopus citations

Abstract

X-ray diffraction (XRD), selected area diffraction (SAD), radial distribution function (RDF) and high resolution transmission electron microscopy (HREM) techniques were used for studying the role of the Ru additives in the stabilization of carbon-supported palladium catalysts at high temperatures in hydrogen atmosphere of (250-650 °C) and under the action of reaction medium (250-285 °C) in process of terephthalic acid (TPA) hydropurification. It is shown that the introduction of ruthenium in the composition of palladium catalysts results in the increase of their sintering stability. A decrease in the dispersity of bimetallic catalysts at high temperatures happens mainly due to the sintering of Pd metal particles; the Ru particles in these conditions maintain a high dispersity and exist as an individual phase.

Original language	English
Pages (from-to)	117-123
Number of pages	7
Journal	Applied Catalysis A: General
Volume	227
Issue number	1-2
DOIs	https://doi.org/10.1016/S0926-860X(01)00928-0
State	Published - 8 Mar 2002

Keywords

Carbon
Catalysts
Palladium
Purification
Ruthenium
Sintering
Terephthalic acid

Access to Document

10.1016/S0926-860X(01)00928-0

Cite this

@article{d26233e7fbb247939894a34e40933154,

title = "Influence of ruthenium addition on sintering of carbon-supported palladium",

abstract = "X-ray diffraction (XRD), selected area diffraction (SAD), radial distribution function (RDF) and high resolution transmission electron microscopy (HREM) techniques were used for studying the role of the Ru additives in the stabilization of carbon-supported palladium catalysts at high temperatures in hydrogen atmosphere of (250-650 °C) and under the action of reaction medium (250-285 °C) in process of terephthalic acid (TPA) hydropurification. It is shown that the introduction of ruthenium in the composition of palladium catalysts results in the increase of their sintering stability. A decrease in the dispersity of bimetallic catalysts at high temperatures happens mainly due to the sintering of Pd metal particles; the Ru particles in these conditions maintain a high dispersity and exist as an individual phase.",

keywords = "Carbon, Catalysts, Palladium, Purification, Ruthenium, Sintering, Terephthalic acid",

author = "Romanenko, {A. V.} and Tyschishin, {E. A.} and Moroz, {E. M.} and Likholobov, {V. A.} and Zaikovskii, {V. I.} and Jhung, {S. H.} and Park, {Y. S.}",

year = "2002",

month = mar,

day = "8",

doi = "10.1016/S0926-860X(01)00928-0",

language = "English",

volume = "227",

pages = "117--123",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Influence of ruthenium addition on sintering of carbon-supported palladium

AU - Romanenko, A. V.

AU - Tyschishin, E. A.

AU - Moroz, E. M.

AU - Likholobov, V. A.

AU - Zaikovskii, V. I.

AU - Jhung, S. H.

AU - Park, Y. S.

PY - 2002/3/8

Y1 - 2002/3/8

N2 - X-ray diffraction (XRD), selected area diffraction (SAD), radial distribution function (RDF) and high resolution transmission electron microscopy (HREM) techniques were used for studying the role of the Ru additives in the stabilization of carbon-supported palladium catalysts at high temperatures in hydrogen atmosphere of (250-650 °C) and under the action of reaction medium (250-285 °C) in process of terephthalic acid (TPA) hydropurification. It is shown that the introduction of ruthenium in the composition of palladium catalysts results in the increase of their sintering stability. A decrease in the dispersity of bimetallic catalysts at high temperatures happens mainly due to the sintering of Pd metal particles; the Ru particles in these conditions maintain a high dispersity and exist as an individual phase.

AB - X-ray diffraction (XRD), selected area diffraction (SAD), radial distribution function (RDF) and high resolution transmission electron microscopy (HREM) techniques were used for studying the role of the Ru additives in the stabilization of carbon-supported palladium catalysts at high temperatures in hydrogen atmosphere of (250-650 °C) and under the action of reaction medium (250-285 °C) in process of terephthalic acid (TPA) hydropurification. It is shown that the introduction of ruthenium in the composition of palladium catalysts results in the increase of their sintering stability. A decrease in the dispersity of bimetallic catalysts at high temperatures happens mainly due to the sintering of Pd metal particles; the Ru particles in these conditions maintain a high dispersity and exist as an individual phase.

KW - Carbon

KW - Catalysts

KW - Palladium

KW - Purification

KW - Ruthenium

KW - Sintering

KW - Terephthalic acid

UR - http://www.scopus.com/inward/record.url?scp=0037040320&partnerID=8YFLogxK

U2 - 10.1016/S0926-860X(01)00928-0

DO - 10.1016/S0926-860X(01)00928-0

M3 - Article

AN - SCOPUS:0037040320

SN - 0926-860X

VL - 227

SP - 117

EP - 123

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 1-2

ER -

Influence of ruthenium addition on sintering of carbon-supported palladium

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this