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Title: Light Induced Water Oxidation on Cobalt-Phosphate (Co-Pi) Catalyst Modified Semi-Transparent, Porous SiO2-BiVO4 Electrodes

Journal Article · · Physical Chemistry Chemical Physics. PCCP (Print)
DOI:https://doi.org/10.1039/c2cp40673j· OSTI ID:1049606

A facile and simple procedure for the synthesis of semi-transparent and porous SiO{sub 2}-BiVO{sub 4} electrodes is reported. The method involves a surfactant assisted metal-organic decomposition at 500 C. An earth abundant oxygen evolution catalyst (OEC), cobalt phosphate (Co-Pi), has been used to modify the SiO{sub 2}-BiVO{sub 4} electrode by electrodeposition (ED) and photoassisted electrodeposition (PED) methods. Modified electrodes by these two methods have been examined for light induced water oxidation and compared to the unmodified SiO{sub 2}-BiVO{sub 4} electrodes by various photoelectrochemical techniques. The PED method was a more effective method of OEC preparation than the ED method as evidenced by an increased photocurrent magnitude during photocurrent-potential (I-V) characterizations. Electrode surfaces catalyzed by PED exhibited a very large cathodic shift (420 mV) in the onset potential for water oxidation. The chopped-light I-V measurements performed at different intervals over 24-hour extended testing under illumination and applied bias conditions show a fair photostability for PED Co-Pi modified SiO{sub 2}-BiVO{sub 4}.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
Center for Revolutionary Solar Photoconversion; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1049606
Report Number(s):
NREL/JA-5600-55511; TRN: US201218%%84
Journal Information:
Physical Chemistry Chemical Physics. PCCP (Print), Vol. 14, Issue 19; ISSN 1463-9076
Country of Publication:
United States
Language:
English

References (65)

A Realizable Renewable Energy Future journal July 1999
Photocatalytic Water Splitting: Recent Progress and Future Challenges journal September 2010
Sustainable Hydrogen Production journal August 2004
Powering the planet: Chemical challenges in solar energy utilization journal October 2006
A framework for visible-light water splitting
  • Navarro, Rufino M.; Alvarez-Galván, M. Consuelo; Villoria de la Mano, Jose A.
  • Energy & Environmental Science, Vol. 3, Issue 12 https://doi.org/10.1039/c001123a
journal January 2010
Electronic structures of promising photocatalysts InMO4 (M=V, Nb, Ta) and BiVO4 for water decomposition in the visible wavelength region journal October 2002
Photoelectrochemical Decomposition of Water into H2 and O2 on Porous BiVO4 Thin-Film Electrodes under Visible Light and Significant Effect of Ag Ion Treatment journal May 2006
Structural and Photoelectrochemical Properties of BiVO 4 Thin Films journal April 2008
A Novel Aqueous Process for Preparation of Crystal Form-Controlled and Highly Crystalline BiVO 4 Powder from Layered Vanadates at Room Temperature and Its Photocatalytic and Photophysical Properties journal December 1999
Loading effects of silver oxides upon generation of reactive oxygen species in semiconductor photocatalysis journal January 2008
FTO∕SnO[sub 2]∕BiVO[sub 4] Composite Photoelectrode for Water Oxidation under Visible Light Irradiation journal January 2008
Photoelectrocatalysis and electrocatalysis on p-silicon journal April 1984
Cobalt-phosphate (Co-Pi) catalyst modified Mo-doped BiVO4 photoelectrodes for solar water oxidation journal January 2011
Effects of molybdenum substitution on the photocatalytic behavior of BiVO4 journal January 2008
Preparation and photoelectrochemical study of BiVO4 thin films deposited by ultrasonic spray pyrolysis journal July 2010
Effect of Si doping on photoelectrocatalytic decomposition of phenol of BiVO4 film under visible light journal May 2010
A new efficient visible-light-driven photocatalyst Na0.5Bi1.5VMoO8 for oxygen evolution journal January 2008
Effects of europium doping on the photocatalytic behavior of BiVO4 journal January 2010
Visible-light-responding Bi0.5Dy0.5VO4 Solid Solution for Photocatalytic Water Splitting journal April 2009
Synthesis and characterization of novel visible-light-driven Pd/BiVO4 composite photocatalysts journal March 2008
TiO 2 -Protected Photoelectrochemical Tandem Cu(In,Ga)Se 2 Thin Film Membrane for Light-Induced Water Splitting and Hydrogen Evolution journal August 2009
Brilliant Yellow, Transparent Pure, and SiO 2 -Coated BiVO 4 Nanoparticles Made in Flames journal October 2008
Investigation of the mixed oxide materials—TiO2SiO2, TiO2SiO2Al2O3, TiO2SiO2In2O3 and TiO2SiO2RuO2—In regard to the photoelectrolysis of water journal January 1991
In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+ journal August 2008
Cobalt–phosphate oxygen-evolving compound journal January 2009
Cobalt−Oxo Core of a Water-Oxidizing Catalyst Film journal May 2009
Structure and Valency of a Cobalt−Phosphate Water Oxidation Catalyst Determined by in Situ X-ray Spectroscopy journal October 2010
EPR Evidence for Co(IV) Species Produced During Water Oxidation at Neutral pH journal May 2010
Screening of Electrocatalysts for Photoelectrochemical Water Oxidation on W-Doped BiVO 4 Photocatalysts by Scanning Electrochemical Microscopy journal June 2011
Near-Complete Suppression of Surface Recombination in Solar Photoelectrolysis by “Co-Pi” Catalyst-Modified W:BiVO 4 journal November 2011
Photocatalytic Water Oxidation on BiVO 4 with the Electrocatalyst as an Oxidation Cocatalyst: Essential Relations between Electrocatalyst and Photocatalyst journal February 2012
Photochemical deposition of cobalt-based oxygen evolving catalyst on a semiconductor photoanode for solar oxygen production journal November 2009
Solar Water Oxidation by Composite Catalyst/α-Fe 2 O 3 Photoanodes journal May 2009
Photo-assisted electrodeposition of cobalt–phosphate (Co–Pi) catalyst on hematite photoanodes for solar water oxidation journal January 2011
Photodeposition of Co-Based Oxygen Evolution Catalysts on α-Fe 2 O 3 Photoanodes journal April 2011
Composite photoanodes for photoelectrochemical solar water splitting journal January 2010
Effect of a Cobalt-Based Oxygen Evolution Catalyst on the Stability and the Selectivity of Photo-Oxidation Reactions of a WO 3 Photoanode journal March 2011
Photo-assisted water oxidation with cobalt-based catalyst formed from thin-film cobalt metal on silicon photoanodes journal January 2011
Photoelectrochemical Water Splitting with Mesoporous Hematite Prepared by a Solution-Based Colloidal Approach journal June 2010
Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response: application to unassisted solar water splitting journal January 2011
High Photocatalytic Capability of Self-Assembled Nanoporous WO 3 with Preferential Orientation of (002) Planes journal June 2007
Photoelectrochemical Oxidation of Water Using Nanostructured BiVO 4 Films journal February 2011
BiVO4 thin film preparation by metalorganic decomposition journal April 2000
Synthesis of Square Bi 2 WO 6 Nanoplates as High-Activity Visible-Light-Driven Photocatalysts journal June 2005
AgInZn7S9 solid solution photocatalyst for H2 evolution from aqueous solutions under visible light irradiation journal August 2002
Shape Control of Semiconductor and Metal Oxide Nanocrystals through Nonhydrolytic Colloidal Routes journal May 2006
Chemistry and Properties of Nanocrystals of Different Shapes journal April 2005
Polarity Dependent Positional Shift of Probe in a Micellar Environment journal January 1996
Dye-surfactant interactions: a review journal March 1986
Ordered Mesoporous BiVO 4 through Nanocasting: A Superior Visible Light-Driven Photocatalyst journal June 2008
Monoclinic Structured BiVO 4 Nanosheets:  Hydrothermal Preparation, Formation Mechanism, and Coloristic and Photocatalytic Properties journal February 2006
Macroporous V 2 O 5 −BiVO 4 Composites: Effect of Heterojunction on the Behavior of Photogenerated Charges journal April 2011
Efficient Photocatalytic Degradation of Phenol over Co 3 O 4 /BiVO 4 Composite under Visible Light Irradiation journal October 2006
Fast fabrication of Co3O4 and CuO/BiVO4 composite photocatalysts with high crystallinity and enhanced photocatalytic activity via ultrasound irradiation journal March 2011
Preparation, characterization and photocatalytic properties of Cu-loaded BiVO4 journal May 2008
X-ray photoelectron spectroscopy of thermally treated silica (SiO2) surfaces journal October 1985
XPS study of α-quartz surface journal June 1980
Electrochemical preparation of TiO2/SiO2 composite film and its high activity toward the photoelectrocatalytic degradation of methyl orange journal March 2009
TiO2-SiO2 based photoanodes in photoelectrochemical cells—performance and evaluation studies journal January 1989
Cobalt–phosphate complexes catalyze the photoelectrochemical water oxidation of BiVO4 electrodes journal January 2011
Nanostructured WO 3 /BiVO 4 Heterojunction Films for Efficient Photoelectrochemical Water Splitting journal May 2011
Highly Improved Quantum Efficiencies for Thin Film BiVO 4 Photoanodes journal August 2011
A Monolithic Photovoltaic-Photoelectrochemical Device for Hydrogen Production via Water Splitting journal April 1998
A quantitative assessment of the competition between water and anion oxidation at WO3 photoanodes in acidic aqueous electrolytes journal January 2012
Accelerating materials development for photoelectrochemical hydrogen production: Standards for methods, definitions, and reporting protocols journal January 2010