The impact of synthesis method of CNT supported CeZrO2 and Ni-CeZrO2 on catalytic activity in WGS reaction

Please use this identifier to cite or link to this item:
Información del item - Informació de l'item - Item information
Title: The impact of synthesis method of CNT supported CeZrO2 and Ni-CeZrO2 on catalytic activity in WGS reaction
Authors: Łamacz, Agata | Matus, Krzysztof | Liszka, Barbara | Silvestre-Albero, Joaquín | Lafjah, Mama | Dintzer, Thierry | Janowska, Izabela
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: CNTs | Ceria-zirconia | Nickel | WGS
Knowledge Area: Química Inorgánica
Issue Date: 1-Mar-2018
Publisher: Elsevier
Citation: Catalysis Today. 2018, 301: 172-182. doi:10.1016/j.cattod.2017.03.035
Abstract: Carbon nanotube (CNT) supported catalysts containing ceria-zirconia mixed oxide (CeZrO2) and nickel were synthesized and tested in water gas shift (WGS) reaction. Physicochemical characterization including N2 adsorption, X-ray diffraction (XRD), scanning and transmission microscopy (SEM/TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and temperature programmed reduction with H2 (H2-TPR), as well as catalytic tests of WGS reaction showed that the synthesis method had significant impact on composition, morphology, structural properties and catalytic performance of obtained hybrid materials. The catalysts obtained by co-precipitation of metal oxides (NiO and/or CeZrO2) on CNT walls demonstrated better dispersion of active phase and smaller particle size than catalyst obtained by depositing of powder CeZrO2 or Ni-CeZrO2. Moreover, the catalyst obtained by co-precipitation revealed better performance in WGS reaction; however, some CH4 formation was noticed over Ni-CeZrO2/CNT system. The role of CeZrO2 in catalysts performance in WGS as well as the importance of good metal-oxide contact were confirmed.
Sponsor: The work was financed by a statutory activity subsidy from the Polish Ministry of Science and Higher Education for the Faculty of Chemistry of Wrocław University of Technology. A.Ł. would like to acknowledge: the French Embassy in Poland for financing scientific stay in ICPEES in the frame of SSHN-2014 program, the Polish Ministry of Science and Higher Education for financing studies on WGS reaction (Iuventus Plus, IP2011030871) and the National Science Centre for financing studies on H2O dissociation (UMO 2011/03/N/ST5/04658).
ISSN: 0920-5861 (Print) | 1873-4308 (Online)
DOI: 10.1016/j.cattod.2017.03.035
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Elsevier B.V.
Peer Review: si
Publisher version:
Appears in Collections:INV - LMA - Artículos de Revistas

Files in This Item:
Files in This Item:
File Description SizeFormat 
Thumbnail2018_Lamacz_etal_CatTod_final.pdfVersión final (acceso restringido)1,42 MBAdobe PDFOpen    Request a copy

Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.