FOR 1600: Chemistry and Technology of the Ammonothermal Synthesis of Nitrides

FOR 1600：氮化物氨热合成化学与技术

• 批准号: 182356696
• 金额: --
• 依托单位: Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/182356696?language=en
• 关键词: 1600; Chemistry; Technology; Ammonothermal; Synthesis

Objective of the research project is to develop a basic understanding of the ammonothermal synthesis to understand and influence the processes involved, and to derive scientific insight in order to achieve the fundamentals for the growth of high quality nitride crystals. Based on these studies of the synthesis of technologically interesting, new nitrides and related compounds, this synthesis route, the chemical processes that take place in liquid and supercritical ammonia, shall be developed step by step and applied. Additionally, for the determination of thermodynamic and crystallisation data, in situ monitoring devices shall be methodically developed subject to technical realisation. For the first time, it should be possible to trace the ongoing process in the reactors at typical ammonothermal synthesis conditions (up to 300 MPa and 600 °C) using optical and radiographic analysis. For this purpose, new equipment shall be developed, which includes a special sampling method to allow chemical balancing. Thus, a new door to findings in the field of ammonothermal synthesis will be opened that will further lead to the development of new substances and materials. Therefore, the main objective is to clarify the processes involved in ammonothermal synthesis to develop optimal experimental equipment and apparatuses to support this objective and ultimately to obtain the fundamentals for a systematic crystal growth in the ammonothermal system as well as developing new materials and optimal crystallisation processes.

该研究项目的目标是加深对氨热合成的基本了解，以了解和影响所涉及的过程，并获得科学见解，从而为高质量氮化物晶体的生长奠定基础。基于这些对技术上有趣的新型氮化物和相关化合物的合成研究，该合成路线，即在液态和超临界氨中发生的化学过程，应逐步开发和应用。此外，为了确定热力学和结晶数据，应根据技术实现有条不紊地开发现场监测装置。首次可以使用光学和射线照相分析来追踪典型氨热合成条件（高达 300 MPa 和 600 °C）下反应器中正在进行的过程。为此，应开发新设备，其中包括特殊的采样方法以实现化学平衡。因此，氨热合成领域的发现将打开一扇新的大门，这将进一步导致新物质和材料的开发。因此，主要目标是阐明氨热合成中涉及的过程，以开发最佳的实验设备和仪器来支持这一目标，并最终获得氨热系统中系统晶体生长以及开发新材料和最佳结晶工艺的基础知识。