Next Article in Journal
MHD Flow and Heat Transfer Analysis in the Wire Coating Process Using Elastic-Viscous
Next Article in Special Issue
Silicides and Nitrides Formation in Ti Films Coated on Si and Exposed to (Ar-N2-H2) Expanding Plasma
Previous Article in Journal
Investigation of the Corrosion Behavior of Electroless Ni-P Coating in Flue Gas Condensate
Previous Article in Special Issue
Numerical and Experimental Investigation on the Spray Coating Process Using a Pneumatic Atomizer: Influences of Operating Conditions and Target Geometries
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Coatings 2017, 7(1), 14; doi:10.3390/coatings7010014

Combustion Synthesis during Flame Spraying (“CAFSY”) for the Production of Catalysts on Substrates

Institute of Nanoscience and Nanotechnology, National Center for Scientific Research“Demokritos”, Aghia Paraskevi, Athens15310, Greece
*
Author to whom correspondence should be addressed.
Academic Editor: Eric Loth
Received: 7 November 2016 / Revised: 22 December 2016 / Accepted: 13 January 2017 / Published: 20 January 2017
View Full-Text   |   Download PDF [3720 KB, uploaded 20 January 2017]   |  

Abstract

Combustion-assisted flame spraying (“CAFSY”) has been used to produce catalytically active nickel aluminide coatings on ceramic substrates. Their catalytic activity was studied in CO2 (dry) reforming of methane, which is particularly significant for environmental protection as well as production of synthesis gas (CO + H2). By varying the CAFSY processing parameters, it is possible to obtain a range of Ni–Al alloys with various ratios of catalytically active phases on the substrate. The influence of the number of coating layers and the type of substrate on the final catalyst composition and on the catalytic activity of the CAFSY coatings was studied and is presented here. The morphology and microstructure of the composite coatings were determined by scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDX) elemental analysis, X-ray diffraction (XRD), and Brunauer–Emmett–Teller (BET) specific area analysis. Catalytic tests for dry reforming of methane were carried out using crushed pellets from the coatings at temperatures of 750–900 °C, and gas chromatography showed that methane conversion approached 88% whereas that of carbon dioxide reached 100%. The H2/CO ratio in the synthesis gas produced by the reaction varied from about 0.7 to over 1.2, depending on the catalyst and substrate type and testing temperature. View Full-Text
Keywords: thermal spray coating; SHS; catalysts on substrates; dry reforming of methane; syngas thermal spray coating; SHS; catalysts on substrates; dry reforming of methane; syngas
Figures

Figure 1

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 alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Xanthopoulou, G.; Marinou, A.; Karanasios, K.; Vekinis, G. Combustion Synthesis during Flame Spraying (“CAFSY”) for the Production of Catalysts on Substrates. Coatings 2017, 7, 14.

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]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top