Synthesis and Characterization of Ternary Niobium, Tantalum and Zirconium Metal-Rich Materials

富铌钽锆三元材料的合成与表征

• 批准号: 9215890
• 负责人: Timothy Hughbanks
• 金额: $ 25.5万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-01 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215890&HistoricalAwards=false
• 关键词: Synthesis; Characterization; Ternary; Niobium; Tantalum

The goal of this research is to conduct exploratory synthesis and physical characterization of metal-rich chalcogenides of zirconium, niobium, and tantalum. Indirect reactions of elemental and binary precursors are used to synthesize ternary compounds at convenient temperatures, less than those obtained by direct methods. Several synthetic target materials, with a particular focus on compounds having the ıTa5TaS5! chain, are explored using flux synthesis to lower reaction temperatures while still yielding crystalline products. Plans are presented for chalcogenide synthesis using metal-halide-cluster precursors. Also, new intercalation chemistry involving Ta2Se and Ta1.4Nb0.6S are explored. The motivations for these exploratory synthesis/characterization are to develop new chemistry or new materials with unusual structures having new and interesting properties.

本研究的目的是进行探索性的综合， 锆的富金属硫属化物的物理表征， 铌和钽。 元素和二元的间接反应 前体用于在方便的条件下合成三元化合物， 温度，低于通过直接方法获得的温度。 几 合成靶材料，特别关注化合物 有了Ta 5 TaS 5！链，探索使用通量合成， 较低的反应温度，同时仍产生结晶 产品. 计划提出了硫族化物合成使用 金属卤化物簇前体。 此外，新的嵌入化学 研究了Ta_2Se和Ta_（1.4）Nb_（0.6）S等元素的相互作用。 的动机 这些探索性的合成/表征是为了开发新的 化学或具有不寻常结构的新材料， 有趣的属性。