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Title: Highly efficient Cu-decorated iron oxide nanocatalyst for low pressure CO 2 conversion

Abstract

We report a nanoparticulate iron oxide based catalyst for CO2 conversion with high efficiency at low pressures and on the effect of the presence of copper on the catalyst's restructuring and its catalytic performance. In situ X-ray scattering reveals the restructuring of the catalyst at the nanometer scale. In situ X-ray absorption near edge structure (XANES) shows the evolution of the composition and oxidation state of the iron and copper components under reaction conditions along with the promotional effect of copper on the chemical transformation of the iron component. X-ray diffraction (XRD), XANES and Raman spectroscopy proved that the starting nano catalyst is composed of iron oxides differing in chemical nature (alpha-Fe2O3, Fe3O4, FeO(OH)) and dimensionality, while the catalyst after CO2 conversion was identified as a mixture of alpha-Fe, Fe3C, and traces of Fe5C2. The significant increase of the rate CO2 is turned over in the presence of copper nanoparticles indicates that Cu nanoparticles activate hydrogen, which after spilling over to the neighbouring iron sites, facilitate a more efficient conversion of carbon dioxide.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division
OSTI Identifier:
1425228
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Catalysis. B, Environmental; Journal Volume: 225; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
Nanoparticles; Benzene; CO2 conversion; Carbon dioxide; Carbon monoxide; Copper; Heterogeneous catalysis; Hydrogen; Iron oxide; Methane; Methanol

Citation Formats

Halder, Avik, Kilianová, Martina, Yang, Bing, Tyo, Eric C., Seifert, Soenke, Prucek, Robert, Panáček, Aleš, Suchomel, Petr, Tomanec, Ondřej, Gosztola, David J., Milde, David, Wang, Hsien-Hau, Kvítek, Libor, Zbořil, Radek, and Vajda, Stefan. Highly efficient Cu-decorated iron oxide nanocatalyst for low pressure CO 2 conversion. United States: N. p., 2018. Web. doi:10.1016/j.apcatb.2017.11.047.
Halder, Avik, Kilianová, Martina, Yang, Bing, Tyo, Eric C., Seifert, Soenke, Prucek, Robert, Panáček, Aleš, Suchomel, Petr, Tomanec, Ondřej, Gosztola, David J., Milde, David, Wang, Hsien-Hau, Kvítek, Libor, Zbořil, Radek, & Vajda, Stefan. Highly efficient Cu-decorated iron oxide nanocatalyst for low pressure CO 2 conversion. United States. doi:10.1016/j.apcatb.2017.11.047.
Halder, Avik, Kilianová, Martina, Yang, Bing, Tyo, Eric C., Seifert, Soenke, Prucek, Robert, Panáček, Aleš, Suchomel, Petr, Tomanec, Ondřej, Gosztola, David J., Milde, David, Wang, Hsien-Hau, Kvítek, Libor, Zbořil, Radek, and Vajda, Stefan. Fri . "Highly efficient Cu-decorated iron oxide nanocatalyst for low pressure CO 2 conversion". United States. doi:10.1016/j.apcatb.2017.11.047.
@article{osti_1425228,
title = {Highly efficient Cu-decorated iron oxide nanocatalyst for low pressure CO 2 conversion},
author = {Halder, Avik and Kilianová, Martina and Yang, Bing and Tyo, Eric C. and Seifert, Soenke and Prucek, Robert and Panáček, Aleš and Suchomel, Petr and Tomanec, Ondřej and Gosztola, David J. and Milde, David and Wang, Hsien-Hau and Kvítek, Libor and Zbořil, Radek and Vajda, Stefan},
abstractNote = {We report a nanoparticulate iron oxide based catalyst for CO2 conversion with high efficiency at low pressures and on the effect of the presence of copper on the catalyst's restructuring and its catalytic performance. In situ X-ray scattering reveals the restructuring of the catalyst at the nanometer scale. In situ X-ray absorption near edge structure (XANES) shows the evolution of the composition and oxidation state of the iron and copper components under reaction conditions along with the promotional effect of copper on the chemical transformation of the iron component. X-ray diffraction (XRD), XANES and Raman spectroscopy proved that the starting nano catalyst is composed of iron oxides differing in chemical nature (alpha-Fe2O3, Fe3O4, FeO(OH)) and dimensionality, while the catalyst after CO2 conversion was identified as a mixture of alpha-Fe, Fe3C, and traces of Fe5C2. The significant increase of the rate CO2 is turned over in the presence of copper nanoparticles indicates that Cu nanoparticles activate hydrogen, which after spilling over to the neighbouring iron sites, facilitate a more efficient conversion of carbon dioxide.},
doi = {10.1016/j.apcatb.2017.11.047},
journal = {Applied Catalysis. B, Environmental},
number = C,
volume = 225,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2018},
month = {Fri Jun 01 00:00:00 EDT 2018}
}