Novel Materials through Non-Hydrolytic Sol-Gel Processing: Negative Thermal Expansion Oxides and Beyond

Materials

Cora Lind³  Stacy D. Gates¹  Nathalie M. Pedoussaut² 

[1] 14841 Hubbell Road, Detroit, MI 48227, USA; E-Mail:;Canoio, 31530 Bretx, France; E-Mail:;Department of Chemistry, TheUniversity of Toledo, Toledo, OH 43606, USA; E-Mail:

关键词: non-hydrolytic sol-gel;    metal oxides;    negative thermal expansion;    metal sulfides;   

DOI  :  10.3390/ma3042567

来源: mdpi

【 摘 要 】

Low temperature methods have been applied to the synthesis of many advanced materials. Non-hydrolytic sol-gel (NHSG) processes offer an elegant route to stable and metastable phases at low temperatures. Excellent atomic level homogeneity gives access to polymorphs that are difficult or impossible to obtain by other methods. The NHSG approach is most commonly applied to the preparation of metal oxides, but can be easily extended to metal sulfides. Exploration of experimental variables allows control over product stoichiometry and crystal structure. This paper reviews the application of NHSG chemistry to the synthesis of negative thermal expansion oxides and selected metal sulfides.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.