The effect of the precursor solution's pretreatment on the properties and microstructure of the SCS final nanomaterials

Olga Thoda, Galina Xanthopoulou, George Vekinis, Alexander Chroneos

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Nanostructured nickel-based catalysts were produced by solution combustion synthesis and it was found that their properties and structure depended on the pretreatment of the precursor solution. X-ray diffraction, N 2 adsorption, and an infrared high-speed camera were used to follow the various synthesis steps and to characterize the obtained catalysts, while their catalytic activity was determined in the hydrogenation of maleic acid. It was determined that the amount of water used and the heating of the precursor solution under mild stirring up to 70 °C influenced the nickel nitrate-glycine-water complexes that were formed in the precursor solution in the form of dendrites. These play a key role in the solution combustion synthesis (SCS) reaction mechanism and in particular in the formation of nickel-based catalysts. Understanding the interrelationships between the processing parameters and the ensuing powder properties allowed an efficient optimization of the catalytic performance.

Original languageEnglish
Article number1200
JournalApplied Sciences (Switzerland)
Volume9
Issue number6
DOIs
Publication statusPublished - 21 Mar 2019

Keywords

  • Infrared high-speed camera
  • Nickel catalysts
  • Nickel-based nanopowders
  • Pretreatment
  • Solution combustion synthesis
  • Surface analysis
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'The effect of the precursor solution's pretreatment on the properties and microstructure of the SCS final nanomaterials'. Together they form a unique fingerprint.

Cite this