Listar por autoría "81c099c9-e2e8-47ab-b21e-e73fbc459777"

Mostrando ítems 1-7 de 7

    • 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   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 ...

    • 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   Unraveling Charge Transfer in CoFe Prussian Blue Modified BiVO4 Photoanodes 

      Moss, Benjamin; Hegner, Franziska; Corby, Sacha; Selim, Shababa; Francàs Forcada, Laia; López, Núria; Gimenez, Sixto; Galan-Mascaros, Jose Ramon; Durrant, James American Chemical Society (2019)
      Catalyst modification of metal oxide photoanodes can result in markedly improved water oxidation efficiency. However, the reasons for improvement are often subtle and controversial. Upon depositing a CoFe Prussian blue ...

    • 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. ...

    • openAccess   WO3/BiVO4: impact of charge separation at the timescale of water oxidation 

      Selim, Shababa; Francàs Forcada, Laia; García-Tecedor, Miguel; Corby, Sacha; Blackman, Chris; Gimenez, Sixto; Durrant, James; Kafizas, Andreas Royal Society of Chemistry (2019-01-16)
      The four hole oxidation of water has long been considered the kinetic bottleneck for overall solar-driven water splitting, and thus requires the formation of long-lived photogenerated holes to overcome this kinetic barrier. ...