Microporous carbonaceous adsorbents for CO₂separation via selective adsorption

Abstract

This article reviews recently developed microporous carbonaceous adsorbents including inorganic carbons and organic polymers for CO2separationviaselective adsorption.

Tuning the adsorption and fluorescence properties of aminal‐linked porous organic polymers through N‐heterocyclic group decoration

“…39,40 NAPOPs have large N content and small pore size and thus are preferred for CO 2 adsorption owing to strong dipole-quadruple interaction as well as size selectivity. 32,40 The adsorption selectivity of NAPOPs were evaluated at 273 K toward an imaginary mixture of CO 2 and N 2 with a molar ratio of 15:85, using the ideal adsorbed solution theory (IAST) 41 based on the single adsorption data. As shown in Figure 3(a), NAPOPs display different CO 2 /N 2 adsorption selectivity in an increasing order of NAPOP-2<NAPOP-4<NAPOP-3<NAPOP-1.…”

Carbon Dioxide Capture Adsorbents: Chemistry and Methods

“…The key metric here is the isosteric heat of adsorption (Q st ), the heat released when CO 2 molecules are chemically attached. [21] However,t hey lack specificity towards CO 2 ,l eadingt oal ow CO 2 selectivity (third checkpoint, Ta ble 3) over the rest of the gas mixture (e.g.,N 2 ). Activated carbonsa re often used for gas treatments, as they are inexpensive,h ighly porous, and robust.…”

Influence of Nitrogen‐Doping for Carbide‐Derived Carbons on the Supercapacitor Performance in an Organic Electrolyte and an Ionic Liquid

“…The N1s peak of the XPS spectra can be fitted to identify the nitrogen groups, and we used 4 peaks (N1, N2, N3, and N4) which can be related to different nitrogen groups (Figure ). The N1 species has a typical binding energy of around 398 eV which indicates pyridinic nitrogen ,. The binding energy of N2 is 400.7 eV and relates to pyrrolic nitrogen, amide, amine, or nitrile .…”

“…The N1 species has a typical binding energy of around 398 eV which indicates pyridinic nitrogen ,. The binding energy of N2 is 400.7 eV and relates to pyrrolic nitrogen, amide, amine, or nitrile . Nitrogen surface groups like amide, amine, or nitrile are unlikely due to the origin of nitrogen in the precursor and the absence of an additional post‐synthesis treatment with nitrogen.…”