Listar por autoría "96af8c40-60a4-4efe-8846-32faed85cc88"

Mostrando ítems 1-19 de 19

    • openAccess   A Perovskite Photovoltaic Mini-Module-CsPbBr3 Photoelectrochemical Cell Tandem Device for Solar-Driven Degradation of Organic Compounds 

      Lee, Seul-Yi; Serafini, Patricio; Masi, Sofia; Gualdrón Reyes, Andrés Fabián; Mesa, Camilo A.; Rodriguez-Pereira, Jhonatan; Gimenez, Sixto; Lee, Hyo Joong; Mora-Sero, Ivan American Chemical Society (2023-10-02)
      Recently, halide perovskites have been widely explored for high-efficiency photocatalysis or photoelectrochemical (PEC) cells. Here, in order to make an efficient photoanode electrode for the degradation of pollutants, ...

    • openAccess   Application of Halide Perovskite Nanocrystals in Solar-Driven Photo(electro)Catalysis 

      Gualdrón Reyes, Andrés Fabián; Mesa, Camilo A.; Gimenez, Sixto; Mora-Sero, Ivan Wiley (2022-03-15)
      Photo(electro)catalysis (PEC) is a promising strategy to conduct attractive solar-driven reactions such as CO2 reduction to form added-value products, H2 production, and organic substrates oxidation, taking advantage of ...

    • openAccess   Direct Observation of the Chemical Transformations in BiVO4 Photoanodes upon Prolonged Light-Aging Treatments 

      Arcas, Ramón; Cardenas-Morcoso, Drialys; Spadaro, Maria Chiara; García-Tecedor, Miguel; Mesa, Camilo A.; Arbiol, Jordi; Fabregat-Santiago, Francisco; Gimenez, Sixto; Mas, Elena Wiley (2022-03-11)
      Exposing BiVO4 photoanodes to light-aging treatments is known to produce a significant photocurrent enhancement. Until now, the interpretation given to this phenomenon is associated to the formation of oxygen vacancies and ...

    • openAccess   Efficient and Stable Blue- and Red-Emitting Perovskite Nanocrystals through Defect Engineering: PbX2 Purification 

      Lee, ChaeHyun; Shin, YeJi; Villanueva Antoli, Alexis; Das Adhikari, Samrat; Rodriguez-Pereira, Jhonatan; Macak, Jan; Mesa, Camilo A.; Gimenez, Sixto; YOON, SEOG JOON; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan American Chemical Society (2021-11-11)
      Current efforts to reduce the density of structural defects such as surface passivation, doping, and modified synthetic protocols have allowed us to grow high-quality perovskite nanocrystals (PNCs). However, the role of ...

    • openAccess   Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments 

      Gualdrón Reyes, Andrés Fabián; Fernandez-Climent, Roser; Masi, Sofia; Mesa, Camilo A.; Echeverría-Arrondo, Carlos; Aiello, Federica; Balzano, Federica; Uccello-Barretta, Gloria; Rodríguez-Pereira, Jhonatan; Gimenez, Sixto; Mora-Sero, Ivan Wiley (2023)
      Halide perovskite nanocrystals (PNCs) have demonstrated their wide potential to fabricate efficient optoelectronic devices and to prepare promising photocatalysts for solar-driven photo(electro)chemical reactions. However, ...

    • openAccess   Facile Surfactant-Assisted Synthesis of BiVO4 Nanoparticulate Films for Solar Water Splitting 

      Montañés, Laura; Mesa, Camilo A.; Gutiérrez-Blanco, Ana; Robles, Christian; Julian-Lopez, Beatriz; Gimenez, Sixto MDPI (2021-10-15)
      Bismuth vanadate (BiVO4), which has attractive applicability as a photoactive material, presents applications that range from catalysis to water treatment upon visible light irradiation. In this study, we develop a simple ...

    • openAccess   Highly Durable Nanoporous Cu2–xS Films for Efficient Hydrogen Evolution Electrocatalysis under Mild pH Conditions 

      Fernandez-Climent, Roser; Redondo, Jesús; García-Tecedor, Miguel; Spadaro, Maria Chiara; Li, Junnan; Chartrand, Daniel; Schiller, Frederik; Pazos, Jhon; Hurtado, Mikel F.; de la Peña O'Shea, Víctor Antonio; Kornienko, Nikolay; Arbiol, Jordi; Barja, Sara; Mesa, Camilo A.; Gimenez, Sixto American Chemical Society (2023-08-04)
      Copper-based hydrogen evolution electrocatalysts are promising materials to scale-up hydrogen production due to their reported high current densities; however, electrode durability remains a challenge. Here, we report a ...

    • openAccess   Impact of Oxygen Vacancy Occupancy on Charge Carrier Dynamics in BiVO4 Photoanodes 

      Selim, Shababa; Pastor , Ernest; García-Tecedor, Miguel; Morris, Madeleine; Francàs Forcada, Laia; Sachs, Michael; Moss, Benjamin; Corby, Sacha; Mesa, Camilo A.; Gimenez, Sixto; Kafizas, Andreas; Bakulin, Artem; Durrant, James American Chemical Society (2019-11-27)
      Oxygen vacancies are ubiquitous in metal oxides and critical to performance, yet the impact of these states upon charge carrier dynamics important for photoelectrochemical and photocatalytic applications remains contentious ...

    • openAccess   Improved Photoelectrochemical Performance of WO3/BiVO4 Heterojunction Photoanodes via WO3 Nanostructuring 

      Nomellini, Chiara; Polo, Annalisa; Mesa, Camilo A.; Pastor , Ernest; Marra, Gianluigi; Grigioni, Ivan; Dozzi, Maria Vittoria; Gimenez, Sixto; Selli, Elena American Chemical Society (2023-11-15)
      WO3/BiVO4 heterojunction photoanodes can be efficiently employed in photoelectrochemical (PEC) cells for the conversion of water into molecular oxygen, the kinetic bottleneck of water splitting. Composite WO3/BiVO4 ...

    • closedAccess   Photoelectrochemical water splitting with dual-photoelectrode tandem and parallel configurations: Enhancing light harvesting and carrier collection efficiencies 

      Keshavarzi, Reza; Mousavian, Mahlasadat; Omrani, MirKazem; Mirkhani, Valiollah; Afzali, Niloufar; Mesa, Camilo A.; Mohammadpoor-Baltork, Iraj; Gimenez, Sixto Elsevier (2023)
      Photoelectrochemical (PEC) water splitting stands out as one of the most promising technologies to store solar energy into chemical bonds and decarbonize industry and transport. In the present study, we develop ...

    • openAccess   Rational Design of Carbon Nitride Photoelectrodes with High Activity Toward Organic Oxidations 

      Pulignani, Carolina; Mesa, Camilo A.; Hillman, Sam; Uekert, Taylor; Gimenez, Sixto; Durrant, James R.; Reisner, Erwin Wiley (2022-12-12)
      Carbon nitride (CNx) is a light-absorber with excellent performance in photocatalytic suspension systems, but the activity of CNx photoelectrodes has remained low. Here, cyanamide-functionalized CNx (NCNCNx) was co-deposited ...

    • closedAccess   Role of Pd in the Electrochemical Hydrogenation of Nitrobenzene Using CuPd Electrodes 

      Carvajal, David; Arcas, Ramón; Mesa, Camilo A.; Fabregat-Santiago, Francisco; Mas, Elena Wiley (2022-04)
      Interest in the electrochemical reduction of organic compounds as an alternative to hydrogen electrosynthesis is driven, among other reasons, by the fact that the products obtained in this process may have more economic ...

    • openAccess   Ru-based nanoparticles supported on carbon nanotubes for electrocatalytic hydrogen evolution: structural and electronic effects 

      Romero, Núria; Fenoll, Dídac A.; Gil Jiménez, Laia; Campos Jara, Sergi; Creus, Jordi; Martí Balaguer, Gerard; Heras-Domingo, Javier; Collière, Vincent; Mesa, Camilo A.; Gimenez, Sixto; Francàs Forcada, Laia; Rodriguez-Santiago, Luís; Solans Monfort, Xavier; Sodupe, Mariona; Bofill, Roger; PHILIPPOT, Karine; García-Antón, Jordi; Sala, Xavier Royal Society of Chemistry (2023-10-10)
      The performance of Ru-based nanoparticles (NPs) in the hydrogen evolution reaction (HER) relies on both their structural properties and the oxidation state of the metal. Herein, the versatility of the organometallic approach ...

    • openAccess   Separating bulk and surface processes in NiOx electrocatalysts for water oxidation 

      Corby, Sacha; García-Tecedor, Miguel; Tengeler, Sven; Steinert, Céline; Moss, Benjamin; Mesa, Camilo A.; Heiba, Hany Fathy; Wilson, Anna A.; Kaiser, Bernhard; Jaegermann, Wolfram; Francàs Forcada, Laia; Gimenez, Sixto; Durrant, James Royal Society of Chemistry (2020-08-10)
      Nickel oxide-based catalysts currently represent the state of the art in electrochemical water oxidation in alkaline pH. However, much of their functionality remains poorly understood, particularly regarding catalytically ...

    • openAccess   Spectroelectrochemical Analysis of the Water Oxidation Mechanism on Doped Nickel Oxides 

      Rao, Reshma R.; Corby, Sacha; Bucci, Alberto; García-Tecedor, Miguel; Mesa, Camilo A.; Rossmeisl, Jan; Gimenez, Sixto; Lloret Fillol, Julio; Stephens, Ifan; Durrant, James American Chemical Society (2022-04-20)
      Metal oxides and oxyhydroxides exhibit state-of-the-art activity for the oxygen evolution reaction (OER); however, their reaction mechanism, particularly the relationship between charging of the oxide and OER kinetics, ...

    • openAccess   Switchable All Inorganic Halide Perovskite Nanocrystalline Photoelectrodes for Solar-Driven Organic Transformations 

      Fernandez-Climent, Roser; Gualdrón Reyes, Andrés Fabián; García-Tecedor, Miguel; Mesa, Camilo A.; Cardenas-Morcoso, Drialys; Montañés, Laura; Barea, Eva M; Mas, Elena; Julian-Lopez, Beatriz; Mora-Sero, Ivan; Gimenez, Sixto Wiley (2021-10-30)
      All inorganic halide perovskite nanocrystals (NCs) are considered as fascinating materials for a wide range of optoelectronic applications encompassing photovoltaics, lasing, sensing, and photocatalysis due to their ...

    • openAccess   The role of crystal facets and disorder on photo-electrosynthesis 

      Pastor, Ernest; Montañés, Laura; Gutiérrez-Blanco, Ana; Hegner, Franziska; Mesa, Camilo A.; Lopez, Nuria; Gimenez, Sixto Royal Society of Chemistry (2022-09-23)
      Photoelectrochemistry has the potential to play a crucial role in the storage of solar energy and the realisation of a circular economy. From a chemical viewpoint, achieving high conversion efficiencies requires subtle ...

    • openAccess   UV-Vis operando spectroelectrochemistry for (photo)electrocatalysis: Principles and guidelines 

      Mesa, Camilo A.; Pastor , Ernest; Francàs Forcada, Laia Elsevier (2022-06-30)
      Electrocatalytic and photoelectrocatalytic technologies are key players in the transition to a circular economy. In order to rationally design the new generation of efficient (photo)electrocatalysts it is critical to ...

    • openAccess   Water oxidation kinetics of nanoporous BiVO4 photoanodes functionalised with nickel/iron oxyhydroxide electrocatalysts 

      Francàs Forcada, Laia; Selim, Shababa; Corby, Sacha; Lee, Dongho; Mesa, Camilo A.; Pastor , Ernest; Choi, Kyoung-Shin; Durrant, James Royal Society of Chemistry (2021-04-15)
      In this work, spectroelectrochemical techniques are employed to analyse the catalytic water oxidation performance of a series of three nickel/iron oxyhydroxide electrocatalysts deposited on FTO and BiVO4, at neutral pH. ...