Photocatalytic overall water splitting promoted by an α-β phase junction on Ga2O3.

When Alpha met Beta: a tuneable α-β surface phase junction on Ga(2)O(3) can significantly improve photocatalytic overall water splitting into H(2) and O(2) over individual α-Ga(2)O(3) or β-Ga(2)O(3) surface phases. This enhanced photocatalytic performance is mainly attributed to the efficient charge separation and transfer across the α-β phase junction.

[1]  P. McMillan,et al.  High-pressure study of the beta-to-alpha transition in Ga2O3 , 2006 .

[2]  John T Yates,et al.  Surface science studies of the photoactivation of TiO2--new photochemical processes. , 2006, Chemical reviews.

[3]  A. Kudo,et al.  Heterogeneous photocatalyst materials for water splitting. , 2009, Chemical Society reviews.

[4]  Turner,et al.  A monolithic photovoltaic-photoelectrochemical device for hydrogen production via water splitting , 1998, Science.

[5]  Can Li,et al.  UV Raman spectroscopic studies on active sites and synthesis mechanisms of transition metal-containing microporous and mesoporous materials. , 2010, Accounts of chemical research.

[6]  H. Onishi,et al.  Electron- and Hole-Capture Reactions on Pt/TiO2 Photocatalyst Exposed to Methanol Vapor Studied with Time-Resolved Infrared Absorption Spectroscopy , 2002 .

[7]  Q. Xin,et al.  Phase transformation in the surface region of zirconia and doped zirconia detected by UV Raman spectroscopy , 2003 .

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

[9]  Jian Pan,et al.  On the true photoreactivity order of {001}, {010}, and {101} facets of anatase TiO2 crystals. , 2011, Angewandte Chemie.

[10]  Masayuki Kanehara,et al.  Photocatalytic overall water splitting promoted by two different cocatalysts for hydrogen and oxygen evolution under visible light. , 2010, Angewandte Chemie.

[11]  Rustum Roy,et al.  Polymorphism of Ga2O3 and the System Ga2O3—H2O , 1952 .

[12]  Arthur J. Nozik,et al.  p‐n photoelectrolysis cells , 1976 .

[13]  L. Kavan,et al.  Orientation Dependence of Charge‐Transfer Processes on TiO2 (Anatase) Single Crystals , 2000 .

[14]  Frank E. Osterloh,et al.  Inorganic Materials as Catalysts for Photochemical Splitting of Water , 2008 .

[15]  Can Li,et al.  Importance of the relationship between surface phases and photocatalytic activity of TiO2. , 2008, Angewandte Chemie.

[16]  K. Domen,et al.  Photocatalyst releasing hydrogen from water , 2006, Nature.

[17]  Jun Chen,et al.  UV Raman spectroscopic study on TiO2. I. Phase transformation at the surface and in the bulk. , 2006, The journal of physical chemistry. B.

[18]  H. Kim,et al.  Photocatalytic nanodiodes for visible-light photocatalysis. , 2005, Angewandte Chemie.

[19]  T. Chen,et al.  Mechanistic Studies of Photocatalytic Reaction of Methanol for Hydrogen Production on Pt/TiO2 by in situ Fourier Transform IR and Time-Resolved IR Spectroscopy , 2007 .

[20]  Clemens Burda,et al.  Femtosecond Spectroscopic Investigation of the Carrier Lifetimes in Digenite Quantum Dots and Discrimination of the Electron and Hole Dynamics via Ultrafast Interfacial Electron Transfer , 2003 .

[21]  H. Kim,et al.  An undoped, single-phase oxide photocatalyst working under visible light. , 2004, Journal of the American Chemical Society.

[22]  Xiaobo Chen,et al.  Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals , 2011, Science.

[23]  A. Rao,et al.  Blueshifted Raman scattering and its correlation with the [110] growth direction in gallium oxide nanowires , 2005 .

[24]  Q. Xin,et al.  Phase Transformation in the Surface Region of Zirconia Detected by UV Raman Spectroscopy , 2001 .

[25]  Can Li,et al.  Enhancement of photocatalytic H2 evolution on CdS by loading MoS2 as Cocatalyst under visible light irradiation. , 2008, Journal of the American Chemical Society.