3 documents found, page 1 of 1
Unravelling the structure of CO2 in silica adsorbents: an NMR and computational...
Sardo, Mariana; Morais, Tiago; Soares, Márcio; Vieira, Ricardo; Ilkaeva, Marina; Lourenço, Mirtha A O; Marín-Montesinos, Ildefonso; Mafra, LuísThis comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO2 speciation in porous CO2-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.
Green Synthesis of MOF-Based Materials for Electrochemical Reduction of Carbon ...
Bagheri, Mitra; Lourenço, Mirtha A O; Dangbegnon, Julien K; Monti, Nicolò B D; Mafra, Luís; Pirri, Fabrizio; Zeng, JuqinPorous ZIF-8 and ZIF-67 were synthesized via a green steam-assisted dry-gel technique and investigated as potential catalysts for CO2 electroreduction. The synthesis conditions are found to significantly influence the growth of these metal-organic frameworks (MOFs). Notably, the water content employed during synthesis plays a crucial role in shaping the morphological properties of ZIF-8. Specifically, a moderat...
Amino-modified periodic mesoporous biphenylene-silica
Lourenço, Mirtha A O; Mayoral, Alvaro; Diaz, Isabel; Silva, Ana Rosa; Ferreira, PaulaThe amination reaction of biphenylene moieties in crystal like mesoporous silica (Bph PMO) is successfully achieved with a density of 3.17 mmol g 1. The amination occurs approximately in every aro matic ring of the biphenylene bridge in the position 2 and 20 , leading to above 50% of the biphenylene group di aminated. The structural integrity of the synthetized material is preserved during the strong acid treat...