Pedoussaut Nathalie M, Lind Cora
Department of Chemistry, MS 602, The University of Toledo, Toledo, Ohio 43606, USA.
Inorg Chem. 2008 Jan 21;47(2):392-4. doi: 10.1021/ic701636h. Epub 2007 Dec 23.
Low-temperature synthetic pathways can result in crystallization of metastable materials. These methods have been widely explored for the preparation of metal oxides. Adaptation of nonhydrolytic sol-gel chemistry to non-oxide systems offers an elegant route to transition-metal sulfides. The method can be exploited for the facile and reproducible synthesis of iron sulfide crystallizing in the troilite structure. This phase is only found in meteorites and planets and has previously been obtained by high-temperature or high-energy ball-milling methods. "Nonhydrolytic" sol-gel processing results in direct crystallization of troilite with no need for further calcination.
低温合成途径可导致亚稳材料的结晶。这些方法已被广泛用于金属氧化物的制备。将非水解溶胶-凝胶化学应用于非氧化物体系为过渡金属硫化物的制备提供了一条优雅的途径。该方法可用于简便且可重复地合成具有陨硫铁结构的硫化铁。这种相仅在陨石和行星中发现，此前是通过高温或高能球磨法获得的。“非水解”溶胶-凝胶工艺可直接使陨硫铁结晶，无需进一步煅烧。
