The discovery of carbon nanotubes produced by graphite, first reported by Iijima in 1991(S. Iijima & T. Ichihasi 1993), ushered in a new and very amazing research field in compacting gases by physisorption methods. The changes in electrical resistance, by adsorption of certain gas molecules are considerable, for example by adsorption of O2, N2, NH3 and H2 (H. Chang et al. 2001). Figure 1 depict...

Syngas production via dry reforming of methane was conducted over 5 wt%Ni + xWO3/γ-Al2O3 (x = 1, 3, 5, 7, or 9 wt%) catalysts at 700 °C and ambient pressure for 7.5 h in a tubular fixed-bed reactor. Textural, morphological, catalytic properties were investigated relation to the weight percent tungsten trioxide loading. The physicochemical evaluated using XRD, N2-physisorption, TGA, H2-TPR, CO2-...

The metal-organic framework Ni(2)(dobdc) (CPO-27-Ni, where dobdc = 1,4-dioxido-2,5-benzenedicarboxylate) has been post-synthetically modified with piperazine (pip) - a known 'accelerator' to improve the kinetics of CO(2) uptake in alkanolamine solvents for chemical absorption - and the impact of the modification on the CO(2) uptake and selectivity over N(2) has been probed. While the modified f...

Surface modification of biomaterials is a promising approach to control biofunctionality while retaining the bulk biomaterial properties. Perlecan major proteoglycan in vascular basement membrane that supports low levels platelet adhesion but not activation. Thus, perlecan bioactive for blood-contacting applications. This study furthers mechanistic understanding interactions with by establishin...

Physisorption using gas or vapor probe molecules is the most common characterization technique for porous materials. The method provides textural information on adsorbent as well affinity a specific adsorbate, typically through equilibrium pressure measurements. Here, we demonstrate how low-field NMR can be used to measure full adsorption isotherms, and by selectively measuring 1H spins of adso...