Replacement procurement: 200 MHz Solid-State NMR Spectrometer

更换采购：200 MHz 固态核磁共振波谱仪

• 批准号: 530325402
• 金额: --
• 依托单位: Universität Münster
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2023
• 资助国家: 德国
• 起止时间: 2022-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/530325402?language=en
• 关键词: Replacement; procurement; 200; MHz; Solid

The procurement involves of a 200 MHz solid-state NMR spectrometer and a number of NMR probes in addition to dedicated temperature equipment, enabling experiments in a broad temperature range. The spectrometer consists of a 200 MHz WB NMR magnet and a digital two-channel NMR console. The NMR probes include three different MAS rotor sizes and a static NMR probe suitable for experiments in a broad temperature range. A key scientific area is the characterisation of transport properties of Li+ and Na+ in solid electrolytes as applied in solid-state batteries via variable-temperature 6/7Li and 23Na NMR experiments. This provides information on ion transport and the associated activation energies for setting up structure-property relationships. For lithium-ion batteries a particular focus is on the application of different anode and cathode-materials and their impact on the electrochemical performance as followed by in situ and operando NMR experiments. This includes the characterisation of Li-ion dynamics via 6/7Li NMR and studies of lithiation products and intermetallic phases, utilising static ultra-wideline WCPMG NMR experiments.

采购包括一台200 MHz固态核磁共振光谱仪和一些核磁共振探头，以及专用的温度设备，使实验能够在广泛的温度范围内进行。该光谱仪由一个200 MHz宽带核磁共振磁体和一个数字双通道核磁共振控制台组成。核磁共振探头包括三种不同大小的MAS转子和一种适用于宽温度范围实验的静态核磁共振探头。一个关键的科学领域是通过变温6/7Li和23Na核磁共振实验来表征Li+和Na+在用于固态电池的固体电解质中的传输特性。这提供了有关离子传输和相关的活化能的信息，用于建立结构-性质关系。对于锂离子电池，重点研究了不同负极和正极材料的应用及其对电化学性能的影响，并进行了现场和操作核磁共振实验。这包括通过6/7Li核磁共振表征锂离子动力学，以及利用静态超宽线WCPMG核磁共振实验研究锂化产物和金属间化合物相。