Catalysts synthesized by selective deposition of Fe onto Pt for the water-gas shift reaction

Isaias Barbosa Aragao; Insoo Ro; Yifei Liu; Madelyn Ball; George W. Huber; Daniela Zanchet; James A. Dumesic

doi:10.1016/j.apcatb.2017.10.004

Catalysts synthesized by selective deposition of Fe onto Pt for the water-gas shift reaction

Isaias Barbosa Aragao, Insoo Ro, Yifei Liu, Madelyn Ball, George W. Huber, Daniela Zanchet, James A. Dumesic

Dept. of Chemical and Biomolecular Engineering

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

34 Scopus citations

Abstract

FePt bimetallic catalysts with intimate contact between the two metals were synthesized by controlled surface reactions (CSR) of (cyclohexadiene)iron tricarbonyl with hydrogen-treated supported Pt nanoparticles. Adsorption of the iron precursor on a Pt/SiO₂ catalyst was studied, showing that the Fe loading could be increased by performing multiple CSR cycles, and the efficiency of this process was linked to the renewal of adsorption sites by a reducing pretreatment. The catalytic activity of these bimetallic catalysts for the water gas shift reaction was improved due to promotion by iron, likely linked to H₂O activation on FeO_x species at or near the Pt surface, mostly in the (II) oxidation state.

Original language	English
Pages (from-to)	182-190
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	222
DOIs	https://doi.org/10.1016/j.apcatb.2017.10.004
State	Published - Mar 2018

Keywords

Bimetallic catalyst
Controlled surface reactions (CSR)
FePt
Water-gas shift reaction (WGSR)

Access to Document

10.1016/j.apcatb.2017.10.004

Cite this

@article{e8857dccf4e84bcfafc2b79f73d603a2,

title = "Catalysts synthesized by selective deposition of Fe onto Pt for the water-gas shift reaction",

abstract = "FePt bimetallic catalysts with intimate contact between the two metals were synthesized by controlled surface reactions (CSR) of (cyclohexadiene)iron tricarbonyl with hydrogen-treated supported Pt nanoparticles. Adsorption of the iron precursor on a Pt/SiO2 catalyst was studied, showing that the Fe loading could be increased by performing multiple CSR cycles, and the efficiency of this process was linked to the renewal of adsorption sites by a reducing pretreatment. The catalytic activity of these bimetallic catalysts for the water gas shift reaction was improved due to promotion by iron, likely linked to H2O activation on FeOx species at or near the Pt surface, mostly in the (II) oxidation state.",

keywords = "Bimetallic catalyst, Controlled surface reactions (CSR), FePt, Water-gas shift reaction (WGSR)",

author = "Aragao, \{Isaias Barbosa\} and Insoo Ro and Yifei Liu and Madelyn Ball and Huber, \{George W.\} and Daniela Zanchet and Dumesic, \{James A.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

doi = "10.1016/j.apcatb.2017.10.004",

language = "English",

volume = "222",

pages = "182--190",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

}

TY - JOUR

T1 - Catalysts synthesized by selective deposition of Fe onto Pt for the water-gas shift reaction

AU - Aragao, Isaias Barbosa

AU - Ro, Insoo

AU - Liu, Yifei

AU - Ball, Madelyn

AU - Huber, George W.

AU - Zanchet, Daniela

AU - Dumesic, James A.

PY - 2018/3

Y1 - 2018/3

N2 - FePt bimetallic catalysts with intimate contact between the two metals were synthesized by controlled surface reactions (CSR) of (cyclohexadiene)iron tricarbonyl with hydrogen-treated supported Pt nanoparticles. Adsorption of the iron precursor on a Pt/SiO2 catalyst was studied, showing that the Fe loading could be increased by performing multiple CSR cycles, and the efficiency of this process was linked to the renewal of adsorption sites by a reducing pretreatment. The catalytic activity of these bimetallic catalysts for the water gas shift reaction was improved due to promotion by iron, likely linked to H2O activation on FeOx species at or near the Pt surface, mostly in the (II) oxidation state.

AB - FePt bimetallic catalysts with intimate contact between the two metals were synthesized by controlled surface reactions (CSR) of (cyclohexadiene)iron tricarbonyl with hydrogen-treated supported Pt nanoparticles. Adsorption of the iron precursor on a Pt/SiO2 catalyst was studied, showing that the Fe loading could be increased by performing multiple CSR cycles, and the efficiency of this process was linked to the renewal of adsorption sites by a reducing pretreatment. The catalytic activity of these bimetallic catalysts for the water gas shift reaction was improved due to promotion by iron, likely linked to H2O activation on FeOx species at or near the Pt surface, mostly in the (II) oxidation state.

KW - Bimetallic catalyst

KW - Controlled surface reactions (CSR)

KW - FePt

KW - Water-gas shift reaction (WGSR)

UR - http://www.scopus.com/inward/record.url?scp=85031490694&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2017.10.004

DO - 10.1016/j.apcatb.2017.10.004

M3 - Article

AN - SCOPUS:85031490694

SN - 0926-3373

VL - 222

SP - 182

EP - 190

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Catalysts synthesized by selective deposition of Fe onto Pt for the water-gas shift reaction

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this