Hydrogenation of CO2, acetone, and CO on a Rh foil promoted by titania overlayers

K. J. Williams; A. B. Boffa; J. Lahtinen; M. Salmeron; A. T. Bell; G. A. Somorjai

doi:10.1007/BF00765181

Hydrogenation of CO₂, acetone, and CO on a Rh foil promoted by titania overlayers

K. J. Williams^*, A. B. Boffa, J. Lahtinen, M. Salmeron, A. T. Bell, G. A. Somorjai

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

53 Sitaatiot (Scopus)

Abstrakti

The effects of submonolayer deposits of titania on the hydrogenation of CO₂, acetone, and CO on a Rh foil have been investigated. Titania has been found to promote all three of the hydrogenation reactions, with each reaction exhibiting a maximum rate at a titania coverage of 0.5 ML. The maximum rate for CO₂ hydrogenation is 15 times that of the bare Rh surface. Acetone hydrogenation shows a 6-fold rate enhancement, while CO displays a 3-fold increase. Changes in the selectivities for each reaction are also observed upon titania promotion. The effects of titania on these reactions are attributed to an interaction between C-O bonds and Ti³⁺ ions located at the perimeter of titania islands.

Alkuperäiskieli	Englanti
Sivut	385-394
Sivumäärä	10
Julkaisu	Catalysis Letters
Vuosikerta	5
Numero	4-6
DOI - pysyväislinkit	https://doi.org/10.1007/BF00765181
Tila	Julkaistu - heinäk. 1990
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1007/BF00765181

Muut tiedostot ja linkit

Link to publication in Scopus

Siteeraa tätä

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title = "Hydrogenation of CO2, acetone, and CO on a Rh foil promoted by titania overlayers",

abstract = "The effects of submonolayer deposits of titania on the hydrogenation of CO2, acetone, and CO on a Rh foil have been investigated. Titania has been found to promote all three of the hydrogenation reactions, with each reaction exhibiting a maximum rate at a titania coverage of 0.5 ML. The maximum rate for CO2 hydrogenation is 15 times that of the bare Rh surface. Acetone hydrogenation shows a 6-fold rate enhancement, while CO displays a 3-fold increase. Changes in the selectivities for each reaction are also observed upon titania promotion. The effects of titania on these reactions are attributed to an interaction between C-O bonds and Ti3+ ions located at the perimeter of titania islands.",

keywords = "acetone hydrogenation, CO hydrogenation, Titania promoted rhodium",

author = "Williams, {K. J.} and Boffa, {A. B.} and J. Lahtinen and M. Salmeron and Bell, {A. T.} and Somorjai, {G. A.}",

year = "1990",

month = jul,

doi = "10.1007/BF00765181",

language = "English",

volume = "5",

pages = "385--394",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Springer",

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TY - JOUR

T1 - Hydrogenation of CO2, acetone, and CO on a Rh foil promoted by titania overlayers

AU - Williams, K. J.

AU - Boffa, A. B.

AU - Lahtinen, J.

AU - Salmeron, M.

AU - Bell, A. T.

AU - Somorjai, G. A.

PY - 1990/7

Y1 - 1990/7

N2 - The effects of submonolayer deposits of titania on the hydrogenation of CO2, acetone, and CO on a Rh foil have been investigated. Titania has been found to promote all three of the hydrogenation reactions, with each reaction exhibiting a maximum rate at a titania coverage of 0.5 ML. The maximum rate for CO2 hydrogenation is 15 times that of the bare Rh surface. Acetone hydrogenation shows a 6-fold rate enhancement, while CO displays a 3-fold increase. Changes in the selectivities for each reaction are also observed upon titania promotion. The effects of titania on these reactions are attributed to an interaction between C-O bonds and Ti3+ ions located at the perimeter of titania islands.

AB - The effects of submonolayer deposits of titania on the hydrogenation of CO2, acetone, and CO on a Rh foil have been investigated. Titania has been found to promote all three of the hydrogenation reactions, with each reaction exhibiting a maximum rate at a titania coverage of 0.5 ML. The maximum rate for CO2 hydrogenation is 15 times that of the bare Rh surface. Acetone hydrogenation shows a 6-fold rate enhancement, while CO displays a 3-fold increase. Changes in the selectivities for each reaction are also observed upon titania promotion. The effects of titania on these reactions are attributed to an interaction between C-O bonds and Ti3+ ions located at the perimeter of titania islands.

KW - acetone hydrogenation

KW - CO hydrogenation

KW - Titania promoted rhodium

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U2 - 10.1007/BF00765181

DO - 10.1007/BF00765181

M3 - Article

AN - SCOPUS:0003142296

SN - 1011-372X

VL - 5

SP - 385

EP - 394

JO - Catalysis Letters

JF - Catalysis Letters

IS - 4-6