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Listar por autor "Peng, Lu"

Mostrando ítems 1-15 de 15

3D defective graphenes with subnanometric porosity obtained by soft-templating following zeolite procedures

Peng, Lu; Domenech-Carbo, Antonio; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (Royal Society of Chemistry, 2019-12-01)

[EN] By applying the well-known templating mechanism employed for the synthesis of mesoporous silicas to the structuration of sodium alginate, a novel defective 3D tubular graphene material (graphenolite) with hierarchical ...
Aqueous Phase Methanol Reforming Catalyzed by Fe-Cu Alloy Nanoparticles Wrapped on Nitrogen-Doped Graphene

García-Baldoví, Alberto; Peng, Lu; Santiago-Portillo, Andrea; Asiri, Abdullah M.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (American Chemical Society, 2022-07-25)

[EN] Small Fe-Cu nanoparticles (NPs) (about 1 nm) supported at a high loading (over 10 wt %) on N-doped graphitic carbon have been prepared in a single pyrolytic step from chitosan adsorbing Cu2+ and Fe2+ salts. The presence ...
Biopolymer-derived structured graphitic carbons as metal-free heterogeneous ozonation catalysts in water

López-Francés, Antón; Peng, Lu; Bernat-Quesada, Francisco; Ferrer, Belén; Navalón, Sergio; Amarajothi, Dhakshina Moorthy; García Gómez, Hermenegildo (Elsevier Ltd, 2024-09)

[EN] The development of metal-free heterogeneous catalysts for advanced oxidation processes is an important area of research, advancing in sustainability, with potential practical applications in water treatment. In this ...
Co-Fe Clusters Supported on N-Doped Graphitic Carbon as Highly Selective Catalysts for Reverse Water Gas Shift Reaction

Peng, Lu; Jurca, Bogdan; Primo Arnau, Ana Maria; Gordillo, Alvaro; Parvulescu, Vasile I.; García Gómez, Hermenegildo (American Chemical Society, 2021-07-19)

[EN] Graphitic carbons are suitable supports of metal nanoparticles with catalytic activity. In the present study, the preparation of N-doped graphitic carbon supporting clusters of Fe-Co alloys starting from biomass waste ...
Co-Fe Nanoparticles Wrapped on N-Doped Graphitic Carbons as Highly Selective CO2 Methanation Catalysts

Jurca, Bogdan; Peng, Lu; Primo Arnau, Ana Maria; Gordillo, Alvaro; Parvulescu, Vasile I.; García Gómez, Hermenegildo (American Chemical Society, 2021-08-11)

[EN] Pyrolysis of chitosan containing various loadings of Co and Fe renders Co-Fe alloy nanoparticles supported on N-doped graphitic carbon. Transmission electron microscopy (TEM) images show that the surface of Co-Fe NPs ...
Fe clusters embedded on N-doped graphene as a photothermal catalyst for selective CO2 hydrogenation

Szalad, Horatiu; Peng, Lu; Primo Arnau, Ana Maria; Albero-Sancho, Josep; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2021-10-07)

[EN] In comparison with the Co analog, small Fe clusters incorporated in a graphene matrix exhibit a photo-assisted increase of 110% in reverse water gas shift CO2 hydrogenation under UV-Vis light irradiation. Available ...
High C2-C4 selectivity in CO2 hydrogenation by particle size control of Co-Fe alloy nanoparticles wrapped on N-doped graphitic carbon

Peng, Lu; Jurca, Bogdan; Primo Arnau, Ana Maria; Gordillo, Alvaro; Parvulescu, Vasile I.; García Gómez, Hermenegildo (Elsevier (Cell Press), 2022-05-20)

[EN] A catalyst based on first-row Fe and Co with a record of 51% selectivity to C-2-C-4 hydrocarbons at 36% CO2 conversion is disclosed. The factors responsible for the C2+ selectivity are a narrow Co-Fe particle size ...
High-current water electrolysis performance of metal phosphides grafted on porous 3D N-doped graphene prepared without using phosphine

Hu, Hu Jiajun; Peng, Lu; Primo Arnau, Ana Maria; Albero-Sancho, Josep; García Gómez, Hermenegildo (Elsevier, 2022-05-18)

[EN] Development of efficient and stable electrodes for hydrogen and oxygen evolution from water constituted of abundant elements and prepared by sustainable and scalable procedures is of considerable importance for producing ...
Metal Nanoparticles Wrapped on Defective Nitrogen-doped Graphitic Carbons as Highly Selective Catalysts for C02 Hydrogenation

Peng, Lu (Universitat Politècnica de València, 2021-09-06)

[ES] Teniendo en cuenta el agotamiento de los combustibles fósiles y la creciente concentración de CO2 en la atmósfera, la hidrogenación de CO2 es una forma prometedora de convertir el CO2 en productos químicos y combustibles ...
Non-noble-metal NiS promoted charge separation and photocatalytic hydrogen evolution for ZnCdS nano-islands on spherical SiO2

Liu, Ke; Yang, Shan; Li, Wei; Wang, Yifan; Sun, Chuanzhi; Peng, Lu; García Gómez, Hermenegildo (American Chemical Society, 2023-04-01)

[EN] The efficiency of photocatalytic solar hydrogen evolution closely depends on the charge separation and the effective use of visible light. In this work, a highly efficient photocatalyst SiO2/ZnCdS/NiS was synthesized ...
Porous Graphitic Carbons Containing Nitrogen by Structuration of Chitosan with Pluronic P123

Peng, Lu; Peng, Yong; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (American Chemical Society, 2021-03-24)

[EN] Using Pluronic P123 as a structure-directing agent and chitosan as a carbon precursor, different porous carbons with remarkable morphologies such as orthohedra or spheres with diametrically opposite holes are obtained. ...
Positive influence of minute Pt addition on the activity of Ni supported on defective graphene for hydrogenation/dehydrogenation of N-ethylcarbazole as liquid organic carrier

García-Baldoví, Alberto; Peng, Lu; Dhakshinamoorthy, Amarajothi; Asiri, Abdullah M.; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (Elsevier, 2023-04)

[EN] Ni nanoparticles (approximate to 8 nm) have been prepared at about 15 wt% loading strongly grafted on N-doped graphitic carbon matrix [Ni@(N)C] by pyrolysis of Ni(OAc)2 adsorbed on chitosan. Ni@(N)C was used as catalyst ...
Promotional Effects on the Catalytic Activity of Co-Fe Alloy Supported on Graphitic Carbon for CO2 Hydrogenation

Jurca, Bogdan; Peng, Lu; Primo Arnau, Ana Maria; Gordillo, Alvaro; Dhakshinamoorthy, Amarajothi; Parvulescu, Vasile I.; García Gómez, Hermenegildo (MDPI AG, 2022-09)

[EN] Starting from the reported activity of Co-Fe nanoparticles wrapped onto graphitic carbon (Co-Fe@C) as CO2 hydrogenation catalysts, the present article studies the influence of a series of metallic (Pd, Ce, Ca, Ca, and ...
Synergistic effect of Cu and Fe small nanoparticles supported on porous N-doped graphitic framework for selective electrochemical CO2 reduction at low overpotential

Du, Xiangze; Peng, Lu; Hu, Jiajun; Peng, Yong; Primo Arnau, Ana Maria; Li, Dan; Albero-Sancho, Josep; Hu, Changwei; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2022-08-18)

[EN] Electrochemical CO2 reduction is an appealing approach to diminish CO2 emissions, while obtaining valuable chemicals and fuels from renewable electricity. However, efficient electrocatalysts exhibiting high selectivity ...
Tridimensional N, P-Codoped Carbon Sponges as Highly Selective Catalysts for Aerobic Oxidative Coupling of Benzylamine

Peng, Lu; Garcia-Baldovi, Hermenegildo; Dhakshinamoorthy, Amarajothi; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (American Chemical Society, 2022-04-05)

[EN] Two tridimensional N-doped porous carbon sponges (3DC-X) have been prepared by using cetyltrimethylammonium chloride ( CTAC) and cetyltrimethylammonium bromide (CTAB) as soft templates and alginate to replicate the ...