MOF membranes exhibit impressive performance in gas separation due to their large surface area, controllable pore size and unique affinity. Here, the ultrathin UiO-66-NH2 polycrystalline membranes with thickness of ∼320 nm are successfully prepared within 1 h using a combination of ultrasound-assis...
A saturated hydrocarbon is a hydrocarbon compound that contains only single bonds between the carbon atoms. What is an unsaturated hydrocarbaon? An unsaturated hydrocarbon is a hydrocarbon compound that has at least one multiple bond between two carbon atoms. ...
Answer to: Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. a) CH4 b) NF3 c)...
Zeolite membranes have received extensive attentions for gas separations due to their unique properties, such as well-defined pore sizes and superior mechanical, thermal and chemical stability compared to polymer membranes [28]. Zeolite membranes with pore sizes that are between the kinetic diameters of...
bonds could also be seen. The generally-existed interaction between B and N in BNC-Cu was further identified by signals of N 1 s → π* resonance and N 1 s → σ* resonance of B-N bonds in NK-edge XANES results,π* andσ* resonances of C = N were also ...
At distances between CH4 and the pore wall of an activated carbon less than 0.6 nm, a strong interaction occurs which gives carbon material their CH4 storage capacity. According to the LJ model, unique insights are provided indicating the importance of the pore structure and the resulting ...
Through characterization techniques such as TEM and HRTEM, the results indicate that under alkaline conditions, Al2O3 forms a unique lamellar stacking structure. This facilitates the uniform distribution of Ni on the catalyst surface and enhances dispersion. The catalyst exhibited better low-temperature...