• openAccess   Competitive Photoelectrochemical Methanol and Water Oxidation with Hematite Electrodes 

      Klahr, Benjamin; Giménez Juliá, Sixto; Zandi, Omid; Fabregat-Santiago, Francisco; Hamann, Thomas ACS Publications (2015-03-24)
      Photocatalytic water and methanol oxidation were studied at thin film hematite electrodes synthesized by atomic layer deposition (ALD). Systematic photoelectrochemical characterization along with O2 evolution measurements ...
    • openAccess   Photoelectrochemical and Impedance Spectroscopic Investigation of Water Oxidation with “Co–Pi”-Coated Hematite Electrodes 

      Klahr, Benjamin; Giménez Juliá, Sixto; Fabregat-Santiago, Francisco; Bisquert, Juan; Hamann, Thomas American Chemical Society (2012)
      Uniform thin films of hematite (α-Fe2O3) deposited by atomic layer deposition (ALD) coated with varying amounts of the cobalt phosphate catalyst, “Co–Pi,” were investigated with steady-state and transient photoelectrochemical ...
    • closedAccess   Understanding the Role of Underlayers and Overlayers in Thin Film Hematite Photoanodes 

      Steier, Ludmila; Herraiz Cardona, Isaac; Fabregat-Santiago, Francisco; Bisquert, Juan; Tilley, S. David; Grätzel, Michael Wiley (2014-12-23)
      Recent research on photoanodes for photoelectrochemical water splitting has introduced the concept of under- and overlayers for the activation of ultrathin hematite films. Their effects on the photocatalytic behavior were ...
    • openAccess   Water oxidation at hematite photoelectrodes: the role of surface states 

      Klahr, Benjamin; Giménez Juliá, Sixto; Fabregat-Santiago, Francisco; Hamann, Thomas; Bisquert, Juan American Chemical Society (2012)
      Hematite (α-Fe2O3) constitutes one of the most promising semiconductor materials for the conversion of sunlight into chemical fuels by water splitting. Its inherent drawbacks related to the long penetration depth of light ...