Visible-light driven oxygen evolution over CoTiO3perovskites via a modified Pechini method: impact of humidity on their phase composition

CrystEngComm ◽  
2016 ◽  
Vol 18 (6) ◽  
pp. 868-871 ◽  
Author(s):  
Shivatharsiny Rasalingam ◽  
Ranjit T. Koodali
Nanoscale ◽  
2015 ◽  
Vol 7 (39) ◽  
pp. 16343-16353 ◽  
Author(s):  
Savio J. A. Moniz ◽  
Christopher S. Blackman ◽  
Paul Southern ◽  
Paul M. Weaver ◽  
Junwang Tang ◽  
...  

2015 ◽  
Vol 51 (7) ◽  
pp. 1338-1340 ◽  
Author(s):  
Nan Shi ◽  
Wei Cheng ◽  
Han Zhou ◽  
Tongxiang Fan ◽  
Markus Niederberger

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


2013 ◽  
Vol 117 (19) ◽  
pp. 9881-9886 ◽  
Author(s):  
Norihiro Aiga ◽  
Qingxin Jia ◽  
Kazuya Watanabe ◽  
Akihiko Kudo ◽  
Toshiki Sugimoto ◽  
...  

2020 ◽  
Vol 4 (6) ◽  
pp. 2686-2690
Author(s):  
Yugo Miseki ◽  
Kana Fujita ◽  
Shoji Iguchi ◽  
Osamu Kitao ◽  
Takahiro Gunji ◽  
...  

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


2021 ◽  
Vol 851 ◽  
pp. 156826
Author(s):  
Seyed Majid Ghoreishian ◽  
Kugalur Shanmugam Ranjith ◽  
Hoomin Lee ◽  
Bumjun Park ◽  
Mohammad Norouzi ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Ruihao Gong ◽  
Dariusz Mitoraj ◽  
Robert Leiter ◽  
Manuel Mundszinger ◽  
Alexander K. Mengele ◽  
...  

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.


ChemPhysChem ◽  
2005 ◽  
Vol 6 (12) ◽  
pp. 2499-2502 ◽  
Author(s):  
Haimei Liu ◽  
Ryuhei Nakamura ◽  
Yoshihiro Nakato

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