Bismuth-Copper Vanadate BiCu2VO6 as a Novel Photocatalyst for Efficient Visible-Light-Driven Oxygen Evolution

ChemPhysChem ◽  
2005 ◽  
Vol 6 (12) ◽  
pp. 2499-2502 ◽  
Author(s):  
Haimei Liu ◽  
Ryuhei Nakamura ◽  
Yoshihiro Nakato
Keyword(s):  
Visible Light ◽  
Oxygen Evolution ◽  
Visible Light Driven ◽  
Copper Vanadate

scholarly journals Visible-light driven water splitting over BiFeO3photoanodes grown via the LPCVD reaction of [Bi(OtBu)3] and [Fe(OtBu)3]2and enhanced with a surface nickel oxygen evolution catalyst

Nanoscale ◽  
2015 ◽  
Vol 7 (39) ◽  
pp. 16343-16353 ◽  
Author(s):  
Savio J. A. Moniz ◽  
Christopher S. Blackman ◽  
Paul Southern ◽  
Paul M. Weaver ◽  
Junwang Tang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Visible Light Driven

Facile synthesis of monodisperse Co3O4 quantum dots with efficient oxygen evolution activity

2015 ◽  
Vol 51 (7) ◽  
pp. 1338-1340 ◽  
Author(s):  
Nan Shi ◽  
Wei Cheng ◽  
Han Zhou ◽  
Tongxiang Fan ◽  
Markus Niederberger
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Oxygen Evolution ◽  
Solution Method ◽  
Facile Synthesis ◽  
Visible Light Driven

A facile solution method was developed for synthesis of monodisperse Co3O4 quantum dots which exhibit efficient visible-light-driven oxygen evolution activity.

Electron–Phonon Coupling Dynamics at Oxygen Evolution Sites of Visible-Light-Driven Photocatalyst: Bismuth Vanadate

2013 ◽  
Vol 117 (19) ◽  
pp. 9881-9886 ◽  
Author(s):  
Norihiro Aiga ◽  
Qingxin Jia ◽  
Kazuya Watanabe ◽  
Akihiko Kudo ◽  
Toshiki Sugimoto ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Evolution ◽  
Bismuth Vanadate ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Visible Light Driven ◽  
Coupling Dynamics

In–Fe mixed oxide as an oxygen-evolution photocatalyst for visible-light-driven Z-scheme water splitting

2020 ◽  
Vol 4 (6) ◽  
pp. 2686-2690
Author(s):  
Yugo Miseki ◽  
Kana Fujita ◽  
Shoji Iguchi ◽  
Osamu Kitao ◽  
Takahiro Gunji ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Mixed Oxide ◽  
Structure Functions ◽  
Type Structure ◽  
Visible Light Driven

In–Fe mixed oxide with the bixbyite-type structure functions as a new oxygen evolution photocatalyst for visible light driven Z-scheme water splitting.

scholarly journals Anatase-Wrapped Rutile Nanorods as an Effective Electron Collector in Hybrid Photoanodes for Visible Light-Driven Oxygen Evolution

2021 ◽  
Vol 9 ◽  
Author(s):  
Ruihao Gong ◽  
Dariusz Mitoraj ◽  
Robert Leiter ◽  
Manuel Mundszinger ◽  
Alexander K. Mengele ◽  
...  
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Oxygen Evolution ◽  
Functional Materials ◽  
Transport Pathways ◽  
Effective Electron ◽  
Faradaic Efficiency ◽  
Interfacial Engineering ◽  
Visible Light Driven ◽  
Anatase Nanoparticles

Arrays of single crystal TiO2 rutile nanorods (RNRs) appear highly promising as electron-collecting substrates in hybrid photoanodes as the RNRs offer direct charge carriers transport pathways, contrary to the conventional electrodes prepared from TiO2 powders that suffer from the numerous charge traps at the grain boundaries. However, the specific surface area of the nanorods is highly limited by their smooth morphology, which might be detrimental in view of utilizing the RNR as a substrate for immobilizing other functional materials. In this study, we developed a novel anatase-wrapped RNR (ARNR) material fabricated by a facile seed layer-free hydrothermal method. The ARNR comprises polycrystalline anatase nanoparticles formed on the surface of RNR, resulting in a large surface area that provides more deposition sites compared to the bare nanorods. Herein, we functionalize ARNR and RNR electrodes with polymeric carbon nitride (CNx) coupled with a CoO(OH)x cocatalyst for dioxygen evolution. The anatase wrapping of the rutile nanorod scaffold is found to be crucial for effective deposition of CNx and for improved photoanode operation in visible light-driven (λ > 420 nm) oxygen evolution, yielding a significant enhancement of photocurrent (by the factor of ∼3.7 at 1.23 V vs. RHE) and faradaic efficiency of oxygen evolution (by the factor of ∼2) as compared to photoanodes without anatase interlayer. This study thus highlights the importance of careful interfacial engineering in constructing photoelectrocatalytic systems for solar energy conversion and paves the way for the use of ARNR-based electron collectors in further hybrid and composite photochemical architectures for solar fuel production.

TiO2-Polyheptazine Hybrid Photoanodes for Visible Light-Driven Water Splitting: The Effect of External Bias

2012 ◽  
Vol 1442 ◽  
Author(s):  
Michal Bledowski ◽  
Lidong Wang ◽  
Ayyappan Ramakrishnan ◽  
Radim Beranek
Keyword(s):  
Metal Oxide ◽  
Visible Light ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Co Catalyst ◽  
Co Catalysts ◽  
External Bias ◽  
Visible Light Driven ◽  
Oxygen Evolving

ABSTRACTVisible (λ > 420 nm) light-driven photooxidation of water at TiO2-polyheptazine (TiO2-PH) hybrid photoanodes loaded with two different metal oxide co-catalysts was investigated in a twoelectrode setup. As compared to TiO2-PH photoanodes loaded with colloidal IrO2, photoelectrodes modified with photodeposited CoOx oxygen-evolving co-catalyst (Co-Pi) showed both higher photocurrents and more efficient oxygen evolution. The minimum external electric bias needed to observe complete photooxidation of water to dioxygen at TiO2-PH photoanodes modified with Co-Pi was estimated to be ca. 0.6 V at pH 7.

scholarly journals Visible light-driven oxygen evolution using a binuclear Ru-bda catalyst

2018 ◽  
Vol 39 (3) ◽  
pp. 446-452 ◽  
Author(s):  
Fei Li ◽  
Congying Xu ◽  
Xiaohong Wang ◽  
Yong Wang ◽  
Jian Du ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxygen Evolution ◽  
Visible Light Driven
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