Low-Temperature Approach to Solvent-Free Chalcogenidometalate Materials

无溶剂硫属金属酸盐材料的低温方法

• 批准号: 253377268
• 负责人: Professorin Dr. Stefanie Dehnen
• 金额: --
• 依托单位: Institut für Nanotechnologie (INT)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/253377268?language=en
• 关键词: Low; Temperature; Approach; Solvent; Free

Within this project, we aim at the optimization and development of sustainable, low-temperature approaches to crystalline chalcogenidometalates by ionothermal synthesis, and at the deep understanding of the corresponding processes. Our target compounds and respective synthetic strategies are: 1) ternary nano-structured, crystalline chalcogenidometalate materials that will be synthesized by uncommon precursor combinations, and 2) complex and heavy metal chalcogenidometalate materials that will be accessed by employment of ionic liquids as non-innocent reaction media. The target compounds have been carefully selected according to our experiences and according to new collaborations that were installed during the previous funding period. The compositions can be generalized by the following formula: (Cat)q[(Mt,c,a,hx)TyEz(R)j][An]p (Cat = alkali metal, (element-)organic or complex cation; Mt = transition metal; Mc = pentel metal within complex cation: Sb, Bi; Ma = triel metal within complex anion: Ga, In; Mh = heavy metal: Cd, In, Sn, Sb, Hg, Pb, Bi; T = Ge, Sn; E = S, Se, Te; R = organic group; An = (pseudo-)halide or complex anion). By variation of the composition, we will address the products' specific opto-electronic and thermoelectric properties that are analysed by a diversity of experimental and computational methods by ourselves or in collaborations within the framework of SPP 1708.

在这个项目中，我们的目标是通过离子热合成来优化和开发可持续的、低温的硫代金属酸盐的方法，并深入了解相应的过程。我们的目标化合物和各自的合成策略是：1)将通过不常见的前体组合合成的三元纳米结构晶态硫属金属酸盐材料，以及2)将使用离子液体作为非无害反应介质来获得的复杂和重金属硫属金属酸盐材料。目标化合物是根据我们的经验和在上一次供资期间安装的新的合作方案精心挑选的。其组成可通过下式概括为：(CAT)q[(Mt，c，a，Hx)TyEz(R)j][An]p(Cat=碱金属、(元素-)有机阳离子或络合阳离子；Mt=过渡金属；Mc=络合阳离子中的五元金属：Sb，Bi；Ma=络合阴离子中的三价金属：Ga，In；Mh=重金属：Cd，In，Sn，Sb，Hg，Pb，Bi；T=Ge，Sn；E=S，Se，Te；R=有机基团；An=(拟)卤化物或络合阴离子)。通过成分的变化，我们将解决产品的特定光电和热电性能，这些性能由我们自己或在SPP 1708框架内的合作中通过各种实验和计算方法进行分析。