Mechanochemical Functionalization of Mesoporous Carbons for the Catalytic Transformation of <i>trans</i>-Ferulic Acid into Vanillin

Lázaro, Noelia; Castro-Gutiérrez, Jimena; Ramírez-Vidal, Pamela; Celzard, Alain; Fierro, Vanessa; AlGarni, Tahani Saad; Pineda, Antonio; Luque, Rafael

doi:10.1021/acssuschemeng.0c09028

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…The X-ray diffraction patterns were collected between 2θ of 10°-90°, as presented in Figure 5a. Among CO2-activated samples, CTZn-A and CTPC-A diffraction patterns clearly show broad peaks at 2θ of 22° and 43°, corresponding to the (002) and (100) of graphitic-like carbon [26,42], whereas these peaks are absent in CTZnPC-A diffraction pattern. This indicates that the carbon substructures of CTZnPC-A may be destroyed during heat treatment [43].…”

Section: Resultsmentioning

confidence: 97%

Microporous Carbons Obtained via Solvent-Free Mechanochemical Processing, Carbonization and Activation with Potassium Citrate and Zinc Chloride for CO2 Adsorption

et al. 2023

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In this study, the facile and sustainable synthesis of highly microporous carbons is explored to reduce the extensive use of harsh activating agents and solvents. The role of potassium citrate (PC) as a greener activating agent in addition to the conventional ZnCl2 is investigated in the mechanochemical solvent-free preparation of highly microporous carbon materials from chestnut tannin (CT), a biomass-type carbon precursor. A small amount of potassium citrate as a chemical activator coupled with CO2 activation at 700 °C afforded carbons with higher specific surface area (1256 m2 g−1) and larger micropore volume (0.54 cm3 g−1) as compared to the carbons activated with both PC and ZnCl2. The high microporosity of the PC-activated carbon materials, significantly enlarged after CO2 activation from micropore volume of 0.16 to 0.54 cm3 g−1, makes them favorable for CO2 adsorption, as evidenced by high adsorption capacity of 3.55 mmol g−1 at ambient conditions (25 °C, 1 bar). This study shows that the solvent-free mechanochemical processing of tannin in the presence of PC is a promising method for obtaining highly microporous carbon materials.

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Section: Resultsmentioning

confidence: 97%