Formation of Non-Aggregated Nickel Nanoparticles in a Tubular Furnace Reactor

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Satoshi Kudoh¹  Tetsuya Taniguchi¹  Yoshiki Okada¹ 

[1] Graduate School of Science and Engineering, Kansai University

关键词: Nickel Nanoparticles;    Non-Aggregates;    Supersonic Flow;    Laval Nozzle;   

DOI  :  10.1252/jcej.13we268

来源: Maruzen Company Ltd

【 摘 要 】

References(7)Cited-By(1)The formation of non-aggregated nickel nanoparticles by hydrogen reduction of nickel chloride has been studied in a tubular furnace reactor. A change in the proportion of non-aggregated particles in TEM images was observed using a rapid cooling of the entire aerosol produced in the reactor with jets of N2 quenching gas and a Laval nozzle placed above the reactor. The proportion of non-aggregated particles was 38% for nickel particles produced without any cooling steps. When the aerosol was supercooled in the Laval nozzle after passing the jets of N2 quenching gas, the proportion of non-aggregates was as large as 84%. It was found that the rapid cooling in the region downstream of the reactor is quite effective for preventing aggregation of particles.

【 授权许可】

Unknown