High-resolution multiple gas sorption analyser for advanced nanoporous materials characterization

所要求的设备是配备现代低温恒温器的高分辨率表面积和孔径物理吸附分析仪。选定的Autosorb iQ单元是一种高性能全自动气体吸附分析仪，具有两个物理吸附分析端口，都配备了低压微孔分析（直径小于2纳米的孔隙）。该仪器需要用气体（N2, Ar, H2, CH4， CO2等）对纳米材料的吸附和解吸等温线进行精确的物理吸附测量，从中可以获得各种关键的表面参数，包括比表面积，孔径分布（从0.1到50 nm），微孔和中孔体积，吸附热，存储容量等，使用各种冷却剂和吸附剂，适用于各种样品类型。该系统可用于催化剂、吸附剂、多孔碳、硅胶、沸石、制药、陶瓷、填料、聚合物等材料的完整表征。压力气体吸附系统允许同时分析两个物理吸附样品从1x10-7到0.999P/P0。要求的Optistat®DN低温恒温器和量热计选项扩展了iQ最先进的多孔材料研究计划的能力。这种独特的系统允许在广泛的温度范围内使用各种吸附剂（即替代Ar， N2和Kr）进行吸附测量，并准确测定吸附的等等热，这需要在不同温度下测量多个等温线。该仪器将广泛用于拉瓦尔大学化学系两位共同申请者F. Kleitz和D. larivi<e:1> re的研究小组的学生和博士后。

The equipment requested is a high-resolution surface area and pore size physisorption analyzer equipped with modern cryostat capability. The selected Autosorb iQ unit is a high-performance fully automated gas sorption analyzer with two physisorption analysis ports, both of which equipped for low pressure micropore analysis (pores below 2 nm in diameter). This instrument is required for precise physisorption measurements with gas (N2, Ar, H2, CH4, CO2, and others) of adsorption and desorption isotherms on nanomaterials, from which various crucial surface parameters can be obtained, including specific surface area, pore size distributions (from 0.1 to 50 nm), micro-and mesopore volume, heats of adsorption, storage capacities, etc. using a variety of coolants and adsorbates for a wide variety of sample types. This system can be used for complete characterization of materials such as catalysts, sorbents, porous carbons, silica gels, zeolites, pharmaceuticals, ceramics, fillers, polymers and others.The manometric gas sorption system allows analyzing two physisorption samples from 1x10-7 to 0.999P/P0 simultaneously.The requested Optistat® DN cryostat and calorimeter options extend the capability of the iQ for most advanced porous materials research programs. This unique system permits adsorption measurements over a wide range of temperatures with various adsorptives (i.e. alternative to Ar, N2 and Kr), and accurate determination of isosteric heat of adsorption which requires measurements of multiple isotherms each at a different temperature. This instrument will be used extensively by the students and postdoctoral fellows of the research groups of the two co-applicants, F. Kleitz, and D. Larivière, in the Department of Chemistry at Université Laval.