Next Article in Journal
Hydroxymethylation of Furfural to HMF with Aqueous Formaldehyde over Zeolite Beta Catalyst
Previous Article in Journal
On the Effects of Doping on the Catalytic Performance of (La,Sr)CoO3. A DFT Study of CO Oxidation
Previous Article in Special Issue
Byproduct Analysis of SO2 Poisoning on NH3-SCR over MnFe/TiO2 Catalysts at Medium to Low Temperatures
Article Menu

Export Article

Open AccessArticle
Catalysts 2019, 9(4), 313; https://doi.org/10.3390/catal9040313

Dry Reforming of Methane over NiLa-Based Catalysts: Influence of Synthesis Method and Ba Addition on Catalytic Properties and Stability

1
Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo, 147, Ondina, CEP: 40170-115 Salvador, BA, Brasil
2
Laboratory of Catalysis and Catalytic Process, Dipartimento di Energia, Politecnico di Milano, via La Masa 34, 20156 Milano, Italy
3
Laboratório Nacional de Luz Síncrotron—LNLS, 13083-100 Campinas (SP), Brasil
*
Author to whom correspondence should be addressed.
Received: 5 March 2019 / Revised: 25 March 2019 / Accepted: 25 March 2019 / Published: 30 March 2019
(This article belongs to the Special Issue Catalysts Deactivation, Poisoning and Regeneration)
  |  
PDF [2302 KB, uploaded 30 March 2019]
  |  

Abstract

CO2 reforming of CH4 to produce CO and H2 is a traditional challenge in catalysis. This area is still very active because of the potentials offered by the combined utilization of two green-house gases. The development of active, stable, and economical catalysts remains a key factor for the exploitation of natural gas (NG) with captured CO2 and biogas to produce chemicals or fuels via syngas. The major issue associated with the dry reforming process is catalyst deactivation by carbon deposition. The development of suitable catalyst formulations is one strategy for the mitigation of coking which becomes especially demanding when noble metal-free catalysts are targeted. In this work NiLa-based catalyst obtained from perovskite precursors La1−xBaxNiO3 (x = 0.0; 0.05; 0.1 and 0.2) and NiO/La2O3 were synthesized, characterized by in situ and operando XRD and tested in the dry reforming of methane. The characterization results showed that the addition of barium promoted BaCO3 segregation and changes in the catalyst structure. This partly affected the activity; however, the incorporation of Ba improved the catalyst resistance to deactivation process. The Ba-containing and Ba-free NiLa-based catalysts performed significantly better than NiO/La2O3 catalysts obtained by wet impregnation. View Full-Text
Keywords: dry reforming of methane; nickel catalysts; barium carbonate; deactivation by coking dry reforming of methane; nickel catalysts; barium carbonate; deactivation by coking
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Gomes, R.; Costa, D.; Junior, R.; Santos, M.; Rodella, C.; Fréty, R.; Beretta, A.; Brandão, S. Dry Reforming of Methane over NiLa-Based Catalysts: Influence of Synthesis Method and Ba Addition on Catalytic Properties and Stability. Catalysts 2019, 9, 313.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Catalysts EISSN 2073-4344 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top