Cosolvent-assisted spray pyrolysis for the generation of metal particles

Jung Hyeun Kim, Valeri I. Babushok, Thomas A. Germer, George W. Mulholland, Sheryl H. Ehrman

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


A cosolvent-assisted spray pyrolysis process was developed for the formation of phase-pure metal particles from metal salt precursors without the direct addition of hydrogen or other reducing gas. Generation of phase-pure copper and nickel particles from aqueous solutions of copper acetate, copper nitrate, and nickel nitrate over the temperature range of 450 to 1000°C was demonstrated. Addition of ethanol as a cosolvent plays a crucial role in producing phase-pure metal powders. Results of a modeling study of ethanol decomposition kinetics suggest that cosolvent decomposition creates a strong reducing atmosphere during spray pyrolysis via in situ production of hydrogen and carbon monoxide.

Original languageEnglish
Pages (from-to)1614-1622
Number of pages9
JournalJournal of Materials Research
Issue number7
StatePublished - Jul 2003


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