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.

在该项目中，我们的目标是通过离子热合成优化和开发可持续的低温方法来制备结晶硫族金属盐，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）三元纳米结构结晶硫属金属酸盐材料，将通过不常见的前体组合合成，2）复杂和重金属硫属金属酸盐材料，将通过使用离子液体作为非无害材料来获得反应介质。目标化合物是根据我们的经验以及上一资助期间建立的新合作精心挑选的。组成可通过下式概括： (Cat)q[(Mt,c,a,hx)TyEz(R)j][An]p (Cat = 碱金属、(元素)有机或络合阳离子；Mt = 络合物阳离子中的过渡金属：Sb、Bi；Ma = 络合物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；An = (假)卤化物或络合阴离子。通过改变成分，我们将解决产品的特定光电和热电特性，这些特性由我们自己或在 SPP 1708 框架内合作通过多种实验和计算方法进行分析。