Zirconia Nanoparticles Made in Spray Flames at High Production Rates
Synthesis of zirconia nanoparticles by flame spray pyrolysis (FSP) at high production rates is investigated. Product powder is collected continuously in a baghouse filter unit that is cleaned periodically by air‐pressure shocks. Nitrogen adsorption (BET), X‐ray diffractometry (XRD), transmission ele...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2004-02, Vol.87 (2), p.197-202 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Mueller, Roger Jossen, Rainer Pratsinis, Sotiris E. Watson, Mark Akhtar, M. Kamal |
| description | Synthesis of zirconia nanoparticles by flame spray pyrolysis (FSP) at high production rates is investigated. Product powder is collected continuously in a baghouse filter unit that is cleaned periodically by air‐pressure shocks. Nitrogen adsorption (BET), X‐ray diffractometry (XRD), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA) are used to characterize the product powder. The effect of powder production rate (up to 600 g/h), dispersion gas flow rate, and precursor concentration on product particle size, crystallinity, morphology, and purity is investigated. The primary particle size of zirconia is controlled from 6 to 35 nm, while the crystal structure consists of mostly tetragonal phase (80–95 wt%), with the balance monoclinic phase at all process conditions. The tetragonal crystal size is close to the primary particle size, which indicates weak agglomeration of single crystals. |
| doi_str_mv | 10.1111/j.1551-2916.2004.00197.x |
| format | Article |
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Kamal</creatorcontrib><title>Zirconia Nanoparticles Made in Spray Flames at High Production Rates</title><title>Journal of the American Ceramic Society</title><description>Synthesis of zirconia nanoparticles by flame spray pyrolysis (FSP) at high production rates is investigated. Product powder is collected continuously in a baghouse filter unit that is cleaned periodically by air‐pressure shocks. Nitrogen adsorption (BET), X‐ray diffractometry (XRD), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA) are used to characterize the product powder. The effect of powder production rate (up to 600 g/h), dispersion gas flow rate, and precursor concentration on product particle size, crystallinity, morphology, and purity is investigated. The primary particle size of zirconia is controlled from 6 to 35 nm, while the crystal structure consists of mostly tetragonal phase (80–95 wt%), with the balance monoclinic phase at all process conditions. The tetragonal crystal size is close to the primary particle size, which indicates weak agglomeration of single crystals.</description><subject>aerogel/aerosol</subject><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>flames</subject><subject>Materials science</subject><subject>Miscellaneous</subject><subject>Nanoparticles</subject><subject>nanoparticulates</subject><subject>Nanopowders</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Physics</subject><subject>spray pyrolysis</subject><subject>Technical ceramics</subject><subject>zirconia</subject><subject>Zirconium</subject><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNkU1v1DAQhi0EEkvhP1hIcEsYO3FsHziUpR9UpXwUqLSX0azjgJdssthZsfvvSdiqSJzqiy37eV_PzMsYF5CLcb1a5UIpkUkrqlwClDmAsDrfPWCzu4eHbAYAMtNGwmP2JKUVTJQpZ-ztIkTXd4H4FXX9huIQXOsTf0-156Hj15tIe37a0nq8pIGfh-8_-MfY11s3hL7jn2nw6Sl71FCb_LPb_Yh9PT35Mj_PLj-cvZsfX2ZOaaEzq4U0RM5KXzdK1Q1VlQddWU_CkvG-FEtbNgJgWZEeoRKWRhsNRstlLcriiL08-G5i_2vr04DrkJxvW-p8v00ojZJKWrgHWBoLUo7g8__AVb-N3dgESqFtUWg7fWsOkIt9StE3uIlhTXGPAnAKAVc4zRqnWeMUAv4NAXej9MWtPyVHbROpcyH90ys1BTPV8frA_Q6t39_bHy-O5yfjadRnB31Ig9_d6Sn-xEoXWuHN1Rm-Wdx8WlxU3_C6-AOyU6du</recordid><startdate>200402</startdate><enddate>200402</enddate><creator>Mueller, Roger</creator><creator>Jossen, Rainer</creator><creator>Pratsinis, Sotiris E.</creator><creator>Watson, Mark</creator><creator>Akhtar, M. 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Kamal</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Zirconia Nanoparticles Made in Spray Flames at High Production Rates</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>2004-02</date><risdate>2004</risdate><volume>87</volume><issue>2</issue><spage>197</spage><epage>202</epage><pages>197-202</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>Synthesis of zirconia nanoparticles by flame spray pyrolysis (FSP) at high production rates is investigated. Product powder is collected continuously in a baghouse filter unit that is cleaned periodically by air‐pressure shocks. Nitrogen adsorption (BET), X‐ray diffractometry (XRD), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA) are used to characterize the product powder. The effect of powder production rate (up to 600 g/h), dispersion gas flow rate, and precursor concentration on product particle size, crystallinity, morphology, and purity is investigated. The primary particle size of zirconia is controlled from 6 to 35 nm, while the crystal structure consists of mostly tetragonal phase (80–95 wt%), with the balance monoclinic phase at all process conditions. The tetragonal crystal size is close to the primary particle size, which indicates weak agglomeration of single crystals.</abstract><cop>Westerville, Ohio</cop><pub>American Ceramics Society</pub><doi>10.1111/j.1551-2916.2004.00197.x</doi><tpages>6</tpages></addata></record> |
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| subjects | aerogel/aerosol Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Cross-disciplinary physics: materials science rheology Exact sciences and technology flames Materials science Miscellaneous Nanoparticles nanoparticulates Nanopowders Nanoscale materials and structures: fabrication and characterization Physics spray pyrolysis Technical ceramics zirconia Zirconium |
| title | Zirconia Nanoparticles Made in Spray Flames at High Production Rates |
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