Copper-doped activated carbon from amorphous cellulose for hydrogen, methane and carbon dioxide storage

Conte, Giuseppe; Policicchio, Alfonso; Luca, Oreste De; Rudolf, Petra; Desiderio, Giovanni; Agostino, Raffaele Giuseppe

doi:10.1016/j.ijhydene.2022.04.029

Cited by 10 publications

(3 citation statements)

References 107 publications

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“…Cellulosic AC doped with Cu 48 25 15 [22] Carbon foam 15.2 0 5 [23] Chemically activated AC from olive stone 10 50 1 [9] Modified AC from fir bark 7l 0 1 [24] AC Norit RX * 2.5 30 5 [25] AC from black locust activated with KOH 5.05 25 1 [26] AC doped with N,S and activated with potassium salts 3.04-3.99 25 1 [27] The asterisk (*) denotes the material used in this study.…”

Section: Barmentioning

confidence: 99%

The Effect of Rotation on Gas Storage in Nanoporous Materials

Mitropoulos,

Kosheleva,

Kostoglou

et al. 2024

Separations

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Nanoporous materials offer a promising solution for gas storage applications in various scientific and engineering domains. However, several crucial challenges need to be addressed, including adsorptive capacity, rapid loading, and controlled gas delivery. A potential approach to tackle these issues is through rotation-based methods. In this study, we investigate the impact of rotation on CO2 adsorption using activated carbon, both at the early and late stages of the adsorption process. Towards this direction, three sets of experiments were conducted: (i) adsorption isotherm with rotation at each gas loading, (ii) adsorption kinetics with multiple rotations performed in sequence 15 min after CO2 introduction, and (iii) adsorption kinetics with a single rotation after 40 h of adsorption and repetition after another 20 h. For the first two cases, the comparison was performed by respective measurements without rotation, while for the last case, results were compared to a theoretical pseudo-first-order kinetic curve. Our findings demonstrate that rotation enhances the adsorptive capacity by an impressive 54%, accelerates kinetics by a factor of 3.25, and enables controllable gas delivery by adjusting the angular velocity. These results highlight rotation as a promising technique to optimize gas storage in nanoporous materials, facilitating advancements in numerous scientific and engineering applications.

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Section: Barmentioning

confidence: 99%

The Effect of Rotation on Gas Storage in Nanoporous Materials

Mitropoulos,

Kosheleva,

Kostoglou

et al. 2024

Separations

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“…Polysaccharides are well‐known biopolymers containing cellulose, starch, chitosan, silk or collagen. As the most plentiful biopolymer, cellulose and its derivatives show remarkable properties such as (i) high carbon content, (ii) cheapness, (iii) excellent biocompatibility (iv) biodegradability, (v) low toxicity, (vi) the use of support material for new catalyst synthesis via metal impregnation due to its hydrophilicity [34] . All these excellent properties make cellulose better substitutes for ordinary organic and inorganic supporting materials for different catalyst preparations.…”

Section: Introductionmentioning

confidence: 99%

“…As the most plentiful biopolymer, cellulose and its derivatives show remarkable properties such as (i) high carbon content, (ii) cheapness, (iii) excellent biocompatibility (iv) biodegradability, (v) low toxicity, (vi) the use of support material for new catalyst synthesis via metal impregnation due to its hydrophilicity. [34] All these excellent properties make cellulose better substitutes for ordinary organic and inorganic supporting materials for different catalyst preparations. In a recent study, carboxymethyl cellulose (CMC) was used to stabilize Ru 0.57 Co 0.43 nanoclusters that was employed as catalyst in the environmentally friendly hydrolytic dehydrogenation of methylamine borane at room temperature (RT).…”

Section: Introductionmentioning

confidence: 99%

Solventless Dimethylamine Borane Dehydrogenation in the Presence of Transition Metal(0) Nanoparticles Loaded on Cellulose

Özhava

Duman

2023

ChemCatChem

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Herein, the results of in‐situ synthesis of four different metal(0) nanoparticles (Pd, Cu, Ru, and Ni) loaded on the surface of cellulose (MNPs@Cellulose) separately and their catalytic use in the solventless dimethylamine‐borane (DMAB) dehydrogenation at 35.0±0.1 °C are reported. Based on the detailed kinetic studies on the solventless DMAB dehydrogenation catalyzed using MNPs@Cellulose, the following results were obtained: (i) Optimum metal loading percentage on the surface of cellulose was determined for Pd@Cellulose to be 4.0 wt.%Pd (152.39 h−1), Ni@Cellulose to be 3.0 wt.%Ni (59.09 h−1), Cu@Cellulose to be 3.0 wt.%Cu (55.45 h−1) and Ru@Cellulose to be 4.0 wt.%Ru (46.06 h−1) and by determining total turnover frequency values in average 10th minutes (TOF10), which provided the highest catalytic activity. (ii) The optimum amount of cellulose for each metal was found to be 50.0 mg for Pd, Cu, and Ru, and 40.0 mg for Ni. (iii) The Arrhenius activation energies were determined for each metal nanoparticles and calculated to be 69±2, 34±2, 35±2 and 42±2 kj.mol−1 for Pd@Cellulose, Ni@Cellulose, Cu@Cellulose, and Ru@Cellulose, respectively.

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