Photoelectrodes based upon Mo:BiVO4 inverse opals for photoelectrochemical water splitting.

BiVO4 has been regarded as a promising material for photoelectrochemical water splitting, but it suffers from a major challenge on charge collection and utilization. In order to meet this challenge, we design a nanoengineered three-dimensional (3D) ordered macro-mesoporous architecture (a kind of inverse opal) of Mo:BiVO4 through a controllable colloidal crystal template method with the help of a sandwich solution infiltration method and adjustable post-heating time. Within expectation, a superior photocurrent density is achieved in return for this design. This enhancement originates primarily from effective charge collection and utilization according to the analysis of electrochemical impedance spectroscopy and so on. All the results highlight the great significance of the 3D ordered macro-mesoporous architecture as a promising photoelectrode model for the application in solar conversion. The cooperating amplification effects of nanoengineering from composition regulation and morphology innovation are helpful for creating more purpose-designed photoelectrodes with highly efficient performance.

[1]  Matthew Moermond.  Solar Water Splitting , 2014 .

[2]  X. Lou,et al.  Two-dimensional nanosheets for photoelectrochemical water splitting: Possibilities and opportunities , 2013 .

[3]  X. Lou,et al.  Ordered macroporous BiVO4 architectures with controllable dual porosity for efficient solar water splitting. , 2013, Angewandte Chemie.

[4]  Min Zhou,et al.  Periodic porous thermochromic VO2(M) films with enhanced visible transmittance. , 2013, Chemical communications.

[5]  Qingzhen Hao,et al.  Large‐Scale Fabrication of Three‐Dimensional Surface Patterns Using Template‐Defined Electrochemical Deposition , 2013, Advanced functional materials.

[6]  Yi Xie,et al.  Efficient water splitting via a heteroepitaxial BiVO(4) photoelectrode decorated with Co-Pi catalysts. , 2012, ChemSusChem.

[7]  B. Pan,et al.  Highly efficient visible-light-driven photocatalytic activities in synthetic ordered monoclinic BiVO4 quantum tubes-graphene nanocomposites. , 2012, Nanoscale.

[8]  C. Mullins,et al.  Incorporation of Mo and W into nanostructured BiVO4 films for efficient photoelectrochemical water oxidation. , 2012, Physical chemistry chemical physics : PCCP.

[9]  Jae Sung Lee,et al.  Phosphate doping into monoclinic BiVO4 for enhanced photoelectrochemical water oxidation activity. , 2012, Angewandte Chemie.

[10]  Yi Xie,et al.  Rational design of the nanowall photoelectrode for efficient solar water splitting. , 2012, Chemical communications.

[11]  Kyoung-Shin Choi,et al.  Efficient and stable photo-oxidation of water by a bismuth vanadate photoanode coupled with an iron oxyhydroxide oxygen evolution catalyst. , 2012, Journal of the American Chemical Society.

[12]  A. Tok,et al.  Quantum-dot-sensitized TiO2 inverse opals for photoelectrochemical hydrogen generation. , 2012, Small.

[13]  Fujio Izumi,et al.  VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data , 2011 .

[14]  T. Furtak,et al.  Cobalt-phosphate (Co-Pi) catalyst modified Mo-doped BiVO4 photoelectrodes for solar water oxidation , 2011 .

[15]  D. Gamelin,et al.  Near-complete suppression of surface recombination in solar photoelectrolysis by "Co-Pi" catalyst-modified W:BiVO4. , 2011, Journal of the American Chemical Society.

[16]  Tao Yu,et al.  Solar hydrogen generation from seawater with a modified BiVO4 photoanode , 2011 .

[17]  Roel van de Krol,et al.  Highly Improved Quantum Efficiencies for Thin Film BiVO4 Photoanodes , 2011 .

[18]  Shikuan Yang,et al.  Template‐Confined Dewetting Process to Surface Nanopatterns: Fabrication, Structural Tunability, and Structure‐Related Properties , 2011 .

[19]  Shikuan Yang,et al.  Recent progress on surface pattern fabrications based on monolayer colloidal crystal templates and related applications. , 2011, Nanoscale.

[20]  A. Bard,et al.  Screening of Electrocatalysts for Photoelectrochemical Water Oxidation on W-Doped BiVO4 Photocatalysts by Scanning Electrochemical Microscopy , 2011 .

[21]  Jinhua Ye,et al.  Enhanced incident photon-to-electron conversion efficiency of tungsten trioxide photoanodes based on 3D-photonic crystal design. , 2011, ACS nano.

[22]  Jae Sung Lee,et al.  Heterojunction BiVO4/WO3 electrodes for enhanced photoactivity of water oxidation , 2011 .

[23]  Michael Grätzel,et al.  Solar water splitting: progress using hematite (α-Fe(2) O(3) ) photoelectrodes. , 2011, ChemSusChem.

[24]  Z. Zou,et al.  Electronic structure and optical properties of monoclinic clinobisvanite BiVO4. , 2011, Physical chemistry chemical physics : PCCP.

[25]  Jin Zhai,et al.  Hierarchically ordered macro-mesoporous TiO₂-graphene composite films: improved mass transfer, reduced charge recombination, and their enhanced photocatalytic activities. , 2011, ACS nano.

[26]  Fan Zhang,et al.  Water splitting by tungsten oxide prepared by atomic layer deposition and decorated with an oxygen-evolving catalyst. , 2011, Angewandte Chemie.

[27]  A. Tok,et al.  TiO2 inverse-opal electrode fabricated by atomic layer deposition for dye-sensitized solar cell applications , 2011 .

[28]  Yi Xie,et al.  C-oriented and {010} facets exposed BiVO4 nanowall films: template-free fabrication and their enhanced photoelectrochemical properties. , 2010, Chemistry, an Asian journal.

[29]  James R. McKone,et al.  Solar water splitting cells. , 2010, Chemical reviews.

[30]  Rose Amal,et al.  Reducing Graphene Oxide on a Visible-Light BiVO4 Photocatalyst for an Enhanced Photoelectrochemical Water Splitting , 2010 .

[31]  Yajun Wang,et al.  Synthesis of Porous Bi2WO6 Thin Films as Efficient Visible‐Light‐Active Photocatalysts. , 2009 .

[32]  Hanyun Cheng,et al.  Synthesis of Porous Bi2WO6 Thin Films as Efficient Visible‐Light‐Active Photocatalysts , 2009 .

[33]  Aron Walsh,et al.  Band Edge Electronic Structure of BiVO4: Elucidating the Role of the Bi s and V d Orbitals , 2009 .

[34]  H. Lee,et al.  Hollow TiO2 Hemispheres Obtained by Colloidal Templating for Application in Dye‐Sensitized Solar Cells , 2008 .

[35]  Horst Kisch,et al.  Visible Light Induced Photoelectrochemical Properties of n-BiVO4 and n-BiVO4/p-Co3O4 , 2008 .

[36]  H. Zeng,et al.  Morphology-controlled 2D ordered arrays by heating-induced deformation of 2D colloidal monolayer , 2006 .

[37]  Bruce Dunn,et al.  Hierarchical battery electrodes based on inverted opal structures , 2002 .

[38]  W. Ingler,et al.  Efficient Photochemical Water Splitting by a Chemically Modified n-TiO2 , 2002, Science.

[39]  Arthur J. Frank,et al.  Nonthermalized Electron Transport in Dye-Sensitized Nanocrystalline TiO2 Films: Transient Photocurrent and Random-Walk Modeling Studies , 2001 .

[40]  M. Grätzel.  Photoelectrochemical cells : Materials for clean energy , 2001 .

[41]  Michael Grätzel,et al.  Photoelectrochemical cells , 2001, Nature.

[42]  A. Kudo,et al.  A Novel Aqueous Process for Preparation of Crystal Form-Controlled and Highly Crystalline BiVO4 Powder from Layered Vanadates at Room Temperature and Its Photocatalytic and Photophysical Properties , 1999 .

[43]  Turner,et al.  A realizable renewable energy future , 1999, Science.

[44]  D. Avnir,et al.  Recommendations for the characterization of porous solids (Technical Report) , 1994 .

[45]  A. Fujishima,et al.  Electrochemical Photolysis of Water at a Semiconductor Electrode , 1972, Nature.