Cobalt Phosphate Group Modified Hematite Nanorod Array as Photoanode for Efficient Solar Water Splitting

Photoinduced Absorption Spectroscopy of CoPi on BiVO4: The Function of CoPi during Water Oxidation

“…These results indicate the presence of both Co II and/or Co III oxidation states in environments similar to Co(OH) 2 and Co 2 O 3 respectively, and has been previously attributed to the formation of a mixed Co II and Co III phosphate . This is consistent with a recent report of CoPi‐modified Fe 2 O 3 photoanodes, as well as analyses of CoPi electrocatalysts . Similar behavior was observed in CoPi grown directly on FTO (see Figure S2 in the Supporting Information).…”

Surface Modification of Hematite Photoanodes with CeOx Cocatalyst for Improved Photoelectrochemical Water Oxidation Kinetics

“…The first peak observed at approximately 529.9 eV is associated with the oxygen atoms bonded to metal ion species (MÀ O) in the crystal lattice (O L , in Fe 2 O 3 and CeO x ). [36] The peak observed at 531.37 is assigned to the oxygen atoms in the vicinity of oxygen vacancies (O V ). [37] The last peak at 533.06 eV can be attributed to surface adsorbed oxygen such as hydroxy groups (MÀ OH) and/ or water molecules (O OH ).…”

Electrodeposited Ti-doped hematite photoanodes and their employment for photoelectrocatalytic hydrogen production in the presence of ethanol

“…Thus most efficient hematite photoanodes have been made by chemical vapor deposition [5,10]. A versatile synthesis procedure, allowing performance optimization by doping, has been obtained by the hydrothermal route [11][12][13][14]. An equally versatile, room temperature procedure for hematite film formation and doping is by electrodeposition [6][7][8]15,16].…”