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

Author(s)

Aragao, Isaias Barbosa ^{[1, 2]} ; Ro, Insoo ^[1] ; Liu, Yifei ^[1] ; Ball, Madelyn ^[1] ; Huber, George W. ^[1] ; Zanchet, Daniela ^[2] ; Dumesic, James A. ^[1]

Affiliation

^[1] Univ Wisconsin, Dept Chem & Biol Engn, 1415 Engn Dr, Madison, WI 53706 - USA

^[2] Univ Cwnpinas UNICAMP, Inst Chem, POB 6154, BR-13083970 Campinas, SP - Brazil

• Document type: Journal article
• Source: APPLIED CATALYSIS B-ENVIRONMENTAL; v. 222, p. 182-190, MAR 2018.
• Web of Science Citations: 10

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. (AU)

• FAPESP's process: 15/23900-2 - Earth-abundant materials as next-generation catalytic platforms for the conversion of lignocellulosic biomass
• Grantee: Daniela Zanchet
• Support Opportunities: Scholarships abroad - Research
• FAPESP's process: 15/20477-1 - Synthesis of monodisperse bimetallic catalysts: organometallic complexes deposited on platinum clusters
• Grantee: Isaias Barbosa Aragão
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 14/21988-7 - Carbonyl organometallic precursors for supported catalysts synthesis: in situ studies and hydrogen production
• Grantee: Isaias Barbosa Aragão
• Support Opportunities: Scholarships in Brazil - Doctorate