Porosity Analyzer

孔隙率分析仪

• 批准号: RTI-2020-00260
• 负责人: Loeb, Stephen
• 金额: $ 10.93万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693813
• 关键词: Porosity; Analyzer

This NSERC RTI application is for a Porosity Analyzer an instrument capable of carrying out analytical measurements for the determination of surface area and pore size distribution (3.5 to 5000 ) in porous materials by physical adsorption. The fundamental data provided by this instrumentation is essential for the full characterization of ALL types of porous material zeolite, metal-organic framework, covalent-organic framework, supramolecular-organic framework, porous polymeric network or porous carbon material.******The Porosity Analyzer will be a fully automated, high throughput analyzer capable of producing high definition analytical measurements for the determination of specific surface area and pore size distribution from 3.5 to 5000 Angstroms by physical adsorption. It is configured with two port for micropore (physisorption) analysis and one port for mesopore analysis and can operate using a variety of analysis gases including N2, O2, Ar, Kr, CO2, CO, H2, butane, other non-corrosive gases or volatile liquids and water. The important features of the system allow for measurements on both standard mesoporous and microporous materials by physisorption and includes the use of krypton for low surface area materials. The instrument is pneumatically actuated and utilizes hard seal valves that provide ultra-clean, leak-proof operation as well as stainless steel gas inlets, VCR fittings, and an analysis manifold. The vacuum system consists of a turbo molecular pump in series with four single-stage diaphragm pumps. The cryogen level on each sample tube is controlled by the use of a passive isothermal jacket. Appropriate software for data analysis and a user-defined reporting system are included along with advanced instrument diagnostics which continuously monitors critical system components for performance and maintenance scheduling. BrunauerEmmettTeller (BET) theory explains the physical adsorption of gas molecules on a solid surface and serves as the basis for the measurement of the specific surface area of materials. Measurement of the BET pore surface area and determination of pore sizes are absolutely fundamental for the full characterization of any new porous material.******A porosity analysis is essential for the full characterization of ANY NEW porous material or ANY material that has been subjected to an external perturbation (chemical, physical) that might disrupt its structure whether it be crystalline, amorphous, polymeric or liquid crystalline. This is akin to the fundamental data melting point or elemental analysis required for the characterization of a (new) molecular species.

此NSERC RTI应用程序适用于孔隙度分析仪，该仪器能够通过物理吸附进行多孔材料表面积和孔径分布（3.5至5000）测定的分析测量。该仪器提供的基本数据对于全面表征所有类型的多孔材料沸石、金属有机骨架、共价有机骨架、超分子有机骨架、多孔聚合物网络或多孔碳材料至关重要。孔隙度分析仪是一种全自动、高通量分析仪，能够通过物理吸附测定3.5至5000埃范围内的比表面积和孔径分布。它配置有两个用于吸附（物理吸附）分析的端口和一个用于中孔分析的端口，可以使用各种分析气体，包括N2，O2，Ar，Kr，CO2，CO，H2，丁烷，其他非腐蚀性气体或挥发性液体和水。该系统的重要特征允许通过物理吸附对标准介孔和微孔材料进行测量，并且包括对低表面积材料使用氪。该仪器是气动驱动的，并利用硬密封阀，提供超净，防漏操作以及不锈钢气体入口，VCR配件，和分析歧管。真空系统由一台涡轮分子泵和四台单级隔膜泵串联组成。 每个样品管上的冷冻剂水平通过使用被动等温夹套来控制。沿着用于数据分析的适当软件和用户定义的报告系统以及先进的仪器诊断功能，可持续监控关键系统组件的性能和维护计划。BrunauerEmmettTeller（BET）理论解释了气体分子在固体表面上的物理吸附，并作为测量材料比表面积的基础。BET孔表面积的测量和孔径的测定对于任何新型多孔材料的全面表征都是绝对重要的。******孔隙率分析对于任何新多孔材料或任何受到外部扰动（化学，物理）的材料的全面表征至关重要，这些扰动可能会破坏其结构，无论是结晶，无定形，聚合物还是液晶。这类似于表征（新）分子种类所需的熔点或元素分析的基本数据。