, microcrystalline cellulose (MCC) that is composed of C, H and O atoms is a kind of effective precursors for the preparation of CMS membranes. An asymmetric cellulose hollow fiber membrane was prepared by adjusting the coagulation temperature in the MCC/ionic liquid/water system [108]. The ...
Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction Article Open access 28 February 2023 Improving CO2 photoconversion with ionic liquid and Co single atoms Article Open access 16 March 2023 Data availability The data that support the plots within this ...
Probing sub-nano level molecular packing and correlated positron annihilation characteristics of ionic cross-linked chitosan membranes using positron annihilation spectroscopy. Phys. Chem. Chem. Phys. 19, 3616–3626 (2016). Article Google Scholar Download references Acknowledgements This research was ...
An atom forms a single covalent bond with another atom through the atoms sharing one valence electron pair. If the starting atom originally contains several valence electrons, then it can form multiple covalent bonds to different peripheral atoms. This is the basis for many simple covalent ...
Why must hydrocarbon compounds be covalently bonded rather than ionically bonded? Hydrocarbons must be covalently bonded because they contain only hydrogen and carbon, both nonmetallic elements. The only way nonmetallic elements will bond with each other is through covalent bonding. ...
Recently, various types of porous materials, including zeolites, metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), organic polymers, and active carbons, have attracted increasing attention owing to their promising applications in catalysis, ionic exchange, and gas adsorption/separation ...
aTotal current density of BNC-Cu and NC-Cu at different applied potentials.bIn situ DEMS data of BNC-Cu and NC-Cu. The total current densities (i), CO2ionic currents (m/z = 44) (ii), and CH4ionic currents (m/z = 15) (iii) for BNC-Cu and NC-Cu electrodes in CO2-sa...
This fact is associated with a number of reasons. First, the presence of any impurities in the filler introduced into the polymeric matrix can lead to its uncontrolled interaction not only with the removed carbon dioxide but also with methane, nitrogen, or oxygen and to a decrease in the ...
During filtration, the precipitate was washed with deionized water for other ionic substances to be removed from it. The precipitate was subsequently dried at 60 °C until the next day. Different BiOmCln/BiOpBrq composites could be produced according to the reaction temperature and pH. Table 1 ...
Although graphene oxide [19] and MoS2 [20] have attracted plenty of interest in the membrane community, one of the essential advantages of MXenes, compared with these oxides, is their higher compatibility with the polymer matrix [21]. Similarly, layered atomic structures constructed on covalent ...