Thermogravimetric Analysis Combined with Calorimetry and Gas-Chromatography/Mass Spectrometry

热重分析与量热法和气相色谱/质谱联用

• 批准号: 530331787
• 金额: --
• 依托单位: Friedrich-Alexander-Universität Erlangen-Nürnberg
• 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/530331787?language=en
• 关键词: Thermogravimetric; Analysis; Combined; Calorimetry; Gas

In the present application, the procurement of a combined thermogravimetric analysis/differential scanning calorimeter (TGA-DSC) coupled to gas chromatography/mass spectrometry (GC/MS) for the simultaneous investigation and characterization of ionic liquids (ILs) is kindly requested. The system will be installed in the Chair of Inorganic and General Chemistry at the Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and represents a central infrastructure component of the newly established Collaborative Research Center SFB 1452 “Catalysis at Liquid Interfaces” (CLINT). In close collaboration with working groups from chemistry, physics, theory, chemical engineering, and material science, the instrument will enable the characterization of the thermal and thermodynamic properties of task-specific (TS) ILs. The newly developed and synthesized ILs are of vital importance for interface-enhanced “Supported Ionic Liquid Processes” (ie-SILP) and “Solid Catalysts with Ionic Liquid Layer” (SCILL) systems in connection with (electro-)catalytic processes at gas/liquid and liquid/solid interfaces within CLINT. The focus is on the idea of using the anisotropic reaction environment at the interface to tailor active sites with unique reactivity. Thus, the device will play a central role in studying interface-enhanced SILP and SCILL, concepts that use custom-tailored ILs to control (electro-)catalytic reactions in which interface-enhanced molecular complexes generate the catalytic properties. Several specific requirements for the device result from the envisioned application areas. Custom-tailored TS-ILs with different thermal and chemical properties must be developed, synthesized, and fully characterized with regard to their thermal stability and sub¬stance properties; thus, leading the way to potential applications. Accordingly, we will have to install an apparatus that allows for the simultaneous thermal analysis (STA) combined with gas-chromatography and mass spectrometry (STA-GC-MS), which combines four standard characterization methods (DSC, TGA, GC, and MS) in a single instru¬ment. With only one sample required, the results of the thermal analyses are exceptionally comparable due to perfectly identical measuring conditions, such as atmosphere, gas flow rate, vapor pressure, heating rate, and thermal contact with the sensor. Thus, it is less time-consuming and reduces the expenses for high-cost materials and elaborate syntheses. Due to wider operating temperature windows (–150 to 1600 °C) of STA instruments – compared to common TGA instruments – temperature-sensitive samples can be examined regarding their thermal properties. Additionally, the in-situ attached GC-MS unit can clearly separate and detect the complex product and pyrolysis mixtures, providing insights into the constitution of the reaction and decomposition products. This gives access to a variety of information on material properties, composition, and stability.

在本申请中，请采购一台结合气相色谱/质谱（GC/MS）的热重分析/差示扫描量热仪（TGA-DSC），用于同时研究和表征离子液体（IL）。该系统将安装在弗里德里希-亚历山大-埃尔朗根-纽伦堡大学（FAU）的无机和普通化学系，是新成立的合作研究中心SFB 1452“液体界面催化”（克林特）的中央基础设施组成部分。通过与来自化学、物理、理论、化学工程和材料科学的工作组密切合作，该仪器将能够表征特定任务（TS）离子液体的热和热力学性质。新开发和合成的离子液体是至关重要的界面增强的“支持离子液体过程”（即SILP）和“固体催化剂与离子液体层”（SCILL）系统与（电）催化过程中的气/液和液/固界面克林特。重点是在界面处使用各向异性反应环境来定制具有独特反应性的活性位点的想法。因此，该设备将在研究界面增强SILP和SCILL中发挥核心作用，这些概念使用定制的离子液体来控制（电）催化反应，其中界面增强的分子复合物产生催化性能。预期的应用领域对器械提出了几项具体要求。必须开发、合成具有不同热和化学性质的定制TS-IL，并就其热稳定性和物质性质进行充分表征;从而为潜在应用开辟道路。因此，我们将必须安装允许同时热分析（STA）与气相色谱和质谱（STA-GC-MS）组合的装置，其在单个装置中组合了四种标准表征方法（DSC、TGA、GC和MS）。由于测量条件完全相同，例如大气、气体流速、蒸汽压、加热速率和与传感器的热接触，因此只需一个样品，热分析结果就具有极高的可比性。因此，它耗时较少，并减少了高成本材料和精细合成的费用。与普通TGA仪器相比，STA仪器具有更宽的工作温度窗口（-150至1600 °C），因此可以检测温度敏感样品的热性能。此外，现场连接的GC-MS装置可以清楚地分离和检测复杂的产物和热解混合物，从而深入了解反应和分解产物的构成。这样就可以访问有关材料特性、成分和稳定性的各种信息。