A novel wet-chemistry method for the synthesis of multicomponent nanoparticles: A case study of BaCe_0.7Zr_0.1Y_0.1Yb_0.1O_3?¦Ä

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• 作者：Meng Shang ^{shangmeng@hotmail.com} ; Jianhua Tong ; ^{jiantong@mines.edu} ; Ryan O'Hayre ; ^{rohayre@mines.edu}
• 关键词：Nanoparticles ; Surfaces ; Crystal growth ; Proton conducting oxide
• 刊名：Materials Letters
• 出版年：2013
• 出版时间：1 February, 2013
• 年：2013
• 卷：92
• 期：Complete
• 页码：382-385
• 全文大小：470 K

文摘

A wet-chemistry method comprised of sequential chelation, thickening, carbonization, dispersion, and calcination steps is demonstrated for the synthesis of multicomponent nanopowders. A state-of-the-art mixed ionic conductor BaCe_0.7Zr_0.1Y_0.1Yb_0.1O_3?¦Ä (BCZYYb) is used as a case study and a powder particle size as small as 10 nm is successfully obtained using this approach. A synthesis mechanism is proposed which suggests that a mild butanol-solvent-mediated dispersion treatment prior to calcination can be used as a generic approach for the synthesis of multicomponent materials with extremely small nanoparticle size.