Anatase nanoparticles boundaries resulting from titanium tetrachloride hydrolysis

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• 作者：J. Sanz^a ; ^{jsanz@icmm.csic.es} ; I. Sobrados^a ; ^{isobrado@icmm.csic.es} ; J. Soria^b ; ^{javiersoriaruiz@gmail.com} ; S. Yurdakal^c ; ^{sedatyurdakal@gmail.com} ; V. Augugliaro^d ; ^{vincenzo.augugliaro@unipa.it}
• 关键词：Titania preparation ; TiCl4 hydrolysis ; Amorphous layers ; Titania particles agglomeration ; NMR spectroscopy ; HRTEM technique
• 刊名：Catalysis Today
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：281
• 期：part_P1
• 页码：198-204
• 全文大小：1334 K
• 卷排序：281

文摘

TiCl4 hydrolysis produces small anatase nanoparticles but mainly amorphous titania. Solvation of bridging OH protons of amorphous titania generates hydronium species. Hydronium species favor the bonding of amorphous titania to anatase nanoparticles. 1H-MAS NMR spectroscopy is able to investigate nanoparticles boundaries formation.