Effect of ammonium nitrate in the average size reduction of nanoparticles of silver, nickel and ruthenium synthesized from flash pyrolysis

Kalyana C. Pingali, Shuguang Deng, David A. Rockstraw

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Nanoparticles of silver in the size range of 100-200 nm were synthesized by flash pyrolysis. Ammonium nitrate was added to aqueous silver nitrate solution, and was subjected to flash pyrolysis in a reactor tube. The ammonia gas generated in the reactor tube by the disintegration of ammonium nitrate at pyrolysis temperature of 700-900°C was effective in breaking the aerosol droplet produced from the atomizer. It was observed that ammonia gas released in the process acted as a surfactant by breaking the aerosol and the resulting nanoparticles synthesized were in the size range of 10-20 nm. The operating parameters such as the solution concentration and atomizer power were maintained the same with and without the usage of ammonium nitrate in silver nitrate and both the results were compared to see the impact of ammonium nitrate surfactant on the aerosol droplet in reducing the size of the nanoparticle. It was observed that for the same set of conditions, when ammonium nitrate was used, a considerable size reduction occurred from 200 nm to 20 nm due to the presence of ammonia gas in the reactor.

Original languageEnglish (US)
Title of host publicationAIChE Annual Meeting, Conference Proceedings
Pages14129-14146
Number of pages18
StatePublished - 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

ASJC Scopus subject areas

  • Engineering(all)

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    Pingali, K. C., Deng, S., & Rockstraw, D. A. (2005). Effect of ammonium nitrate in the average size reduction of nanoparticles of silver, nickel and ruthenium synthesized from flash pyrolysis. In AIChE Annual Meeting, Conference Proceedings (pp. 14129-14146)