Listar INAM_Articles por autoría "f91ca8b7-2f59-4583-a516-f4d4186c64ca"

Mostrando ítems 21-40 de 51

    • 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 ...

    • closedAccess   Hierarchical Ti-Based MOF with Embedded RuO2 Nanoparticles: a Highly Efficient Photoelectrode for Visible Light Water Oxidation 

      Afzali, Niloufar; Tangestaninejad, Shahram; Keshavarzi, Reza; Mirkhani, Valiollah; Nematollahi, Javad; Moghadam, Majid; Mohammadpoor-Baltork, Iraj; Reimer, Max; Olthof, Selina; Klein, Axel; Gimenez, Sixto American Chemical Society (2020-12-10)
      The Ti-based metal–organic framework (MOF) MIL-125-NH2 is one of the promising materials for solar water splitting because it contains a sensitizer and a catalytic center in a single structure. MIL-125-NH2 as many other ...

    • 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   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   Improved solar water splitting performance of BiVO4 photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer 

      Shaddad, Maged; Hezam, Mahmoud; Arunachalam, Prabhakarn; AL-Saeedan, Norah M.; Gimenez, Sixto; Bisquert, Juan; Al-Mayouf, Abdullah Elsevier (2022)
      In this work, Zr-Mo co-doping was successfully employed on electrochemically deposited BiVO4 photoanodes, and tested for photoelectrochemical (PEC) water oxidation. Zr doping induced the formation of relatively smaller ...

    • openAccess   Improving the Back Surface Field on an Amorphous Silicon Carbide Thin‐Film Photocathode for Solar Water Splitting 

      Perez-Rodriguez, Paula; Cardenas-Morcoso, Drialys; Digdaya, Ibadillah; Mangel Raventos, Andrea; Procel, Paul; Isabella, Olindo; Gimenez, Sixto; Zeman, Miro; Smith, Wilson A.; Smets, Arno H. M. Wiley-VCH Verlag (2018-06-11)
      Amorphous silicon carbide (a‐SiC:H) is a promising material for photoelectrochemical water splitting owing to its relatively small band‐gap energy and high chemical and optoelectrical stability. This work studies the ...

    • openAccess   Intensity-Modulated Photocurrent Spectroscopy for Solar Energy Conversion Devices: What Does a Negative Value Mean? 

      Cardenas-Morcoso, Drialys; Bou, Agustín; Ravishankar, Sandheep; García-Tecedor, Miguel; Gimenez, Sixto; Bisquert, Juan American Chemical Society (2020-01-10)
      Small perturbation techniques constitute a wide family of tools for the characterization of solar energy conversion devices such as photovoltaic cells and photoelectrochemical (PEC) cells for solar fuel production. Two ...

    • openAccess   Interfacial Engineering at Quantum Dot-Sensitized TiO2 Photoelectrodes for Ultrahigh Photocurrent Generation 

      Kim, Tea-Yon; Kim, Byung Su; Oh, Jong Gyu; Park, Seul Chan; Jang, Jaeyoung; Hamann, Thomas; Kang, Young Soo; Bang, Jin Ho; Gimenez, Sixto; Kang, Yong Soo American Chemical Society (2021-02-01)
      Metal oxide semiconductor/chalcogenide quantum dot (QD) heterostructured photoanodes show photocurrent densities >30 mA/cm2 with ZnO, approaching the theoretical limits in photovoltaic (PV) cells. However, comparative ...

    • openAccess   Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting 

      Barawi Morán, Mariam; Gomez-Mendoza, Miguel; Oropeza, Freddy E; Gorni , Giulio; Villar-Garcia, Ignacio J.; Gimenez, Sixto; de la Peña O'Shea, Víctor Antonio; García-Tecedor, Miguel American Chemical Society (2022-07-27)
      The present study proposes a laser irradiation method to superficially reduce BiVO4 photoelectrodes and boost their water oxidation reaction performance. The origin of this enhanced performance toward oxygen evolution ...

    • openAccess   Lead Sulfide Nanocubes for Solar Energy Storage 

      Lemsi, Amira; Cardenas-Morcoso, Drialys; Haro, Marta; Gil Barrachina, Carlos; Aranda Alonso, Clara; Maghraoui Meherzi, Hager; García-Tecedor, Miguel; Gimenez, Sixto; Julian-Lopez, Beatriz Wiley (2020-04-23)
      Lead sulfide (PbS) nanocubes are produced by a very simple solvothermal procedure that uses a unique molecule, ethylenediamine, as solvent and capping ligand to control the size and shape of the nanocrystals. Detailed ...

    • openAccess   Level Alignment as Descriptor for Semiconductor/Catalyst Systems in Water Splitting: The Case of Hematite/Cobalt Hexacyanoferrate Photoanodes 

      Hegner, Franziska; Cardenas-Morcoso, Drialys; Gimenez, Sixto; López, Núria; Galan-Mascaros, Jose Ramon (2017-11-23)
      The realization of artificial photosynthesis may depend on the efficient integration of photoactive semiconductors and catalysts to promote photoelectrochemical water splitting. Many efforts are currently devoted to the ...

    • openAccess   Multifunctional approach to improve water oxidation performance with MOF-based photoelectrodes 

      Afzali, Niloufar; Keshavarzi, Reza; Tangestaninejad, Shahram; Gimenez, Sixto; Mirkhani, Valiollah; Moghadam, Majid; Mohammadpoor-Baltork, Iraj Elsevier (2021-09)
      Metal-Organic Frameworks (MOFs) are a group of compounds with high porosity and diverse capabilities in photoelectrochemistry. The use of these compounds as photocatalysts and photoelectrodes is still a strong challenge ...

    • openAccess   New Views on Carrier Diffusion and Recombination by Combining Small Perturbation Techniques: Application to BiVO4 Photoelectrodes 

      Alvarez, Agustin; García-Tecedor, Miguel; Montañés, Laura; Mas, Elena; Gimenez, Sixto; Fabregat-Santiago, Francisco Wiley (2022)
      Impedance spectroscopy (IS), intensity-modulated photocurrent spectroscopy (IMPS), and intensity-modulated photovoltage spectroscopy (IMVS) are well-established powerful modulated techniques to characterize optoelectronic ...

    • openAccess   Photocatalytic and Photoelectrochemical Degradation of Organic Compounds with All-Inorganic Metal Halide Perovskite Quantum Dots 

      Cardenas-Morcoso, Drialys; Gualdrón Reyes, Andrés Fabián; Ferreira Vitoreti, Ana Beatriz; García-Tecedor, Miguel; YOON, SEOG JOON; Solis de la Fuente, Mauricio; Mora-Sero, Ivan; Gimenez, Sixto American Chemical Society (2019-01)
      Inspired by the outstanding optoelectronic properties reported for all-inorganic halide perovskite quantum dots (QDs), we have evaluated the potential of these materials toward the photocatalytic and photoelectrochemical ...

    • closedAccess   Push-PullElectronicEffectsin Surface-ActiveSites EnhanceElectrocatalyticOxygenEvolutionon TransitionMetalOxides 

      Garcés Pineda, Felipe Andrés; Nguyen, Huu Chuong; Blasco Ahicart, Marta; García-Tecedor, Miguel; de fez febre, mabel; Tang, PengYi; Arbiol, Jordi; Gimenez, Sixto; Galan-Mascaros, Jose Ramon; Lopez, Nuria Wiley (2021-01-19)
      Sustainable electrocatalysis of the oxygen evolution reaction (OER) constitutes a major challenge for the realization of green fuels. Oxides based on Ni and Fe in alkaline media have been proposed to avoid using critical ...

    • 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 ...

    • openAccess   Self-supported ultra-active NiO-based electrocatalysts for the oxygen evolution reaction by solution combustion 

      Bucci, Alberto; García-Tecedor, Miguel; Corby, Sacha; Rao, Reshma R.; Martin-Diaconescu, Vlad; Oropeza, Freddy E; de la Peña O'Shea, Víctor Antonio; Durrant, James; Gimenez, Sixto; Lloret Fillol, Julio Royal Society of Chemistry (2021-04-20)
      The oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to ...

    • 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 ...

    • closedAccess   Solar Energy Storage by a Heterostructured BiVO4–PbOx Photocapacitive Device 

      Safshekan, Saeid; Herraiz Cardona, Isaac; Cardenas-Morcoso, Drialys; Ojani, Reza; Haro, Marta; Gimenez, Sixto American Chemical Society (2017)
      The development of solar energy storage strategies is a key step for handling the inherent variability of sunlight within a global solar-based energy model. In the present study, we have developed a photocapacitive device ...

    • openAccess   Solution-Processed Ni-Based Nanocomposite Electrocatalysts: An Approach to Highly Efficient Electrochemical Water Splitting 

      Noguera-Gomez, Jaume; García-Tecedor, Miguel; Sánchez Royo, Juan Francisco; Valencia, Luisa M.; de la Mata, María; Herrera Collado, Miriam; Molina, Sergio I.; Abargues, Rafael; Gimenez, Sixto American Chemical Society (2021-05-10)
      In this study, we report an up-scalable and low-cost solution-processed method to in situ synthesize an earth-abundant non-stoichiometric NiOx-based electrocatalytic film for water oxidation. The catalytic activity was ...