Remarkable Activity of 002 Facet of Ruthenium Nanoparticles Grown on Graphene Films on the Photocatalytic CO<sub>2</sub> Methanation

Anouar, Aicha; García‐Aboal, Rocío; Atienzar, Pedro; Franconetti, Antonio; Katir, Nadia; Kadib, Abdelkrim El; Primo, Ana; Garcı́a, Hermenegildo

doi:10.1002/adsu.202100487

Cited by 9 publications

(6 citation statements)

References 56 publications

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“…Other than semiconductor photocatalysts, some plasmonic (such as Ag, Au, and Cu) 6 – 12 or nonplasmonic (such as Ni and Ru) 13 , 14 metal nanoparticles (NPs) have been recently reported to show photocatalytic activities for CO 2 reduction. Under illumination, a collective oscillation of free electrons (conduction band electrons) is sometimes induced in metal NPs, a phenomenon defined as localized surface plasmon resonance (LSPR).…”

Section: Introductionmentioning

confidence: 99%

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

et al. 2022

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Achieving CO2 reduction with H2O on metal photocatalysts and understanding the corresponding mechanisms at the molecular level are challenging. Herein, we report that quantum-sized Au nanoparticles can photocatalytically reduce CO2 to CO with the help of H2O by electron-hole pairs mainly originating from interband transitions. Notably, the Au photocatalyst shows a CO production rate of 4.73 mmol g−1 h−1 (~100% selectivity), ~2.5 times the rate during CO2 reduction with H2 under the same experimental conditions, under low-intensity irradiation at 420 nm. Theoretical and experimental studies reveal that the increased activity is induced by surface Au–O species formed from H2O decomposition, which synchronously optimizes the rate-determining steps in the CO2 reduction and H2O oxidation reactions, lowers the energy barriers for the *CO desorption and *OOH formation, and facilitates CO and O2 production. Our findings provide an in-depth mechanistic understanding for designing active metal photocatalysts for efficient CO2 reduction with H2O.

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Section: Introductionmentioning

confidence: 99%

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

et al. 2022

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“…In the HRTEM images of Ru@ Nb(5.0)/SBA-15, a clear crystal lattice fringe with a d-spacing of 0.231 nm was observed, which was very close to the (002) lattice plane of typical Ru metal NPs with high crystallinity. 38 This finding indicated that Ru metal NPs were successfully decorated on the surface of Ru@Nb(5.0)/SBA-15 (Figure 2).…”

Section: Resultsmentioning

confidence: 80%

Synergistic Interaction between Ruthenium Catalysts and Grafted Niobium on SBA-15 for 2,5-Furandicarboxylic Acid Production Using 5-Hydroxymethylfurfural

Perumal,

Lee,

et al. 2024

ACS Appl. Mater. Interfaces

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This study entailed the synthesis of Ru nanocatalyst decorated on Nb-grafted SBA-15. A Nb-grafted SBA-15 support with varying Nb contents was utilized as a support for the Ru nanoparticles. The effect of Nb grafting on the immobilized Ru nanoparticle catalyst was systematically investigated, and its catalytic performance in the synthesis of furandicarboxylic acid using 5-hydroxymethylfurfural under base-free reaction conditions was evaluated. The results indicate the increased productivity of the Ru@Nb-grafted SBA-15 catalyst with a yield exceeding 95%, representing a significant advancement in catalysis. This study also affords insights into the complex relationship between the catalytic activity and selectivity and its unique surface attributes. Moreover, acidic sites were created, and the electron density within the active sites was modulated by monomeric Nb oxide species on the SBA-15. Additionally, the role of high-electron-density Ru atoms in facilitating the efficient adsorption and activation of the reactant, resulting in enhanced catalytic efficacy, was highlighted.

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“…The emergence of 2D materials [1][2][3][4][5][6][7][8] had a tremendous impact on the scientific research, in consideration of the unique properties and their broad technological prospect in photonics, [9] flexible electronics, [10] nanocomposites, [11,12] (photo)electrocatalysis, [13][14][15] supercapacitors, [16,17] functional coatings, [18] (bio)sensors, [19] and desalination. [11,[20][21][22]…”

Section: Introductionmentioning

confidence: 99%

Dimethyl 2‐Methylglutarate (Iris): A Green Platform for Efficient Liquid‐Phase Exfoliation of 2D Materials

D’Olimpio

Occhiuzzi

Lozzi

et al. 2022

Advanced Sustainable Systems

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Liquid‐phase exfoliation of bulk crystals of layered materials, held together by weak interlayer van der Waals forces, is an ideal platform for scalable synthesis of nanosheets. However, it is mandatory to substitute existing solvents, regrettably displaying severe limitations due to toxicity. Here, dimethyl 2‐methylglutarate (Rhodiasolv Iris) is validated for efficient liquid‐phase exfoliation of selected van der Waals materials, namely, MoS2, WS2, GeSe, and graphite. Here, we show that Iris‐assisted liquid phase exfoliation provides high yield (up to 52%) of flakes of 2D materials with aspect ratio as high as 500. Considering the various advantages of Iris over the state‐of‐the‐art solvents, including the absence of toxicity and its biodegradability, this work opens new possibilities for the ecofriendly production of 2D materials and for their extensive usage in industrial processes hitherto semi‐unexplored, owing to the toxicity of state‐of‐the‐art solvents (including the production of drinkable water or fruit juice concentration). Accordingly, the validation of Iris for sustainable liquid‐phase exfoliation of van der Waals crystals has intrinsic outstanding potential commercial impact. Moreover, here the values of the surface tension, Hansen solubility parameter, and viscosity of Rhodiasolv Iris are reported for the first time, which will be relevant also for any other sustainable process based on this new green solvent.

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Remarkable Activity of 002 Facet of Ruthenium Nanoparticles Grown on Graphene Films on the Photocatalytic CO₂ Methanation

Cited by 9 publications

References 56 publications

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

Synergistic Interaction between Ruthenium Catalysts and Grafted Niobium on SBA-15 for 2,5-Furandicarboxylic Acid Production Using 5-Hydroxymethylfurfural

Dimethyl 2‐Methylglutarate (Iris): A Green Platform for Efficient Liquid‐Phase Exfoliation of 2D Materials

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Remarkable Activity of 002 Facet of Ruthenium Nanoparticles Grown on Graphene Films on the Photocatalytic CO2 Methanation

Cited by 9 publications

References 56 publications

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

Molecular-level insight into photocatalytic CO2 reduction with H2O over Au nanoparticles by interband transitions

Synergistic Interaction between Ruthenium Catalysts and Grafted Niobium on SBA-15 for 2,5-Furandicarboxylic Acid Production Using 5-Hydroxymethylfurfural

Dimethyl 2‐Methylglutarate (Iris): A Green Platform for Efficient Liquid‐Phase Exfoliation of 2D Materials

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Product

Resources

About

Remarkable Activity of 002 Facet of Ruthenium Nanoparticles Grown on Graphene Films on the Photocatalytic CO₂ Methanation