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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sol-gel synthesis of nanocrystalline MgO and its application as support in Ni/MgO catalysts for ethanol steam reforming

Full text
Author(s):
Possato, Luiz G. [1, 2] ; Goncalves, Rosembergue G. L. [2] ; Santos, Rodrigo M. M. [2] ; Chaves, Thiago F. [2] ; Briois, Valerie [1] ; Pulcinelli, Sandra H. [2] ; Martins, Leandro [2] ; Santilli, V, Celso
Total Authors: 8
Affiliation:
[1] Synchrotron SOLEIL, BP48, F-91192 Gif Sur Yvette - France
[2] V, Univ Estadual Paulista Unesp, Inst Quim, Campus Araraquara, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Applied Surface Science; v. 542, MAR 15 2021.
Web of Science Citations: 0
Abstract

This work reports the improved catalytic activity of nickel catalysts supported on nanocrystalline magnesium oxide prepared by a sol-gel method, using Plumnic P123 as a structure-directing agent for pore formation. The presence of Pluronic also provided a reduction of the magnesium oxide crystallite size from 54 to 18 nm, as well as the attainment of small supported metallic nickel particles. In situ X-ray diffraction was used to assess the structural evolution of the materials during activation, followed by X-ray absorption spectroscopy, N-2 physisorption isotherms, transmission electron microscopy, and temperature-programmed CO2 desorption. The materials synthesized with the surfactant presented heightened activity in the ethanol steam reforming reaction. The long-term stability of the catalysts was improved, due to the decrease the coke formation, with the catalyst prepared using surfactant developing less deactivating coke. (AU)

FAPESP's process: 14/11952-5 - Study of the formation of ordered hierarchical materials by a supramolecular structure in emulsions using zeolite precursors
Grantee:Thiago Faheina Chaves
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 16/12752-5 - Study of MgO formation with hierarchical pores system as a catalyst for ethanol steam reforming
Grantee:Luiz Gustavo Possato
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products
Grantee:José Maria Correa Bueno
Support Opportunities: Research Projects - Thematic Grants