Comment on “Commercially Available WO3 Nanopowders for Photoelectrochemical Water Splitting: Photocurrent versus Oxygen Evolution”

ChemPlusChem ◽  
2017 ◽  
Vol 82 (9) ◽  
pp. 1167-1168
Author(s):  
Jan Augustynski ◽  
Renata Solarska
2019 ◽  
Vol 7 (9) ◽  
pp. 4415-4419 ◽  
Author(s):  
Beibei Zhang ◽  
Xiaojuan Huang ◽  
Hongyan Hu ◽  
Lingjun Chou ◽  
Yingpu Bi

Plasma-exfoliation of CoOOH catalysts into defect-rich and ultrathin nanolayers (∼2 nm) significantly improved the photoelectrochemical activities of BiVO4 photoanodes.


2014 ◽  
Vol 317 ◽  
pp. 126-134 ◽  
Author(s):  
Jin Hyun Kim ◽  
Ji Wook Jang ◽  
Hyun Joon Kang ◽  
Ganesan Magesh ◽  
Jae Young Kim ◽  
...  

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 525 ◽  
Author(s):  
Carmelo Lo Vecchio ◽  
Stefano Trocino ◽  
Sabrina Campagna Zignani ◽  
Vincenzo Baglio ◽  
Alessandra Carbone ◽  
...  

Tandem photoelectrochemical cells (PECs), made up of a solid electrolyte membrane between two low-cost photoelectrodes, were investigated to produce “green” hydrogen by exploiting renewable solar energy. The assembly of the PEC consisted of an anionic solid polymer electrolyte membrane (gas separator) clamped between an n-type Fe2O3 photoanode and a p-type CuO photocathode. The semiconductors were deposited on fluorine-doped tin oxide (FTO) transparent substrates and the cell was investigated with the hematite surface directly exposed to a solar simulator. Ionomer dispersions obtained from the dissolution of commercial polymers in the appropriate solvents were employed as an ionic interface with the photoelectrodes. Thus, the overall photoelectrochemical water splitting occurred in two membrane-separated compartments, i.e., the oxygen evolution reaction (OER) at the anode and the hydrogen evolution reaction (HER) at the cathode. A cost-effective NiFeOx co-catalyst was deposited on the hematite photoanode surface and investigated as a surface catalytic enhancer in order to improve the OER kinetics, this reaction being the rate-determining step of the entire process. The co-catalyst was compared with other well-known OER electrocatalysts such as La0.6Sr0.4Fe0.8CoO3 (LSFCO) perovskite and IrRuOx. The Ni-Fe oxide was the most promising co-catalyst for the oxygen evolution in the anionic environment in terms of an enhanced PEC photocurrent and efficiency. The materials were physico-chemically characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM).


2015 ◽  
Vol 3 (47) ◽  
pp. 23936-23945 ◽  
Author(s):  
Serkan Esiner ◽  
Robin E. M. Willems ◽  
Alice Furlan ◽  
Weiwei Li ◽  
Martijn M. Wienk ◽  
...  

An organic artificial leaf that is composed of a triple junction polymer solar cell for light absorption and low-overpotential catalytic electrodes for hydrogen and oxygen evolution provides solar-to-hydrogen conversion efficiency of 4.9% using earth-abundant catalysts.


2014 ◽  
Vol 136 (7) ◽  
pp. 2843-2850 ◽  
Author(s):  
William D. Chemelewski ◽  
Heung-Chan Lee ◽  
Jung-Fu Lin ◽  
Allen J. Bard ◽  
C. Buddie Mullins

Nanoscale ◽  
2020 ◽  
Vol 12 (16) ◽  
pp. 8875-8882 ◽  
Author(s):  
Ruolin Hu ◽  
Linxing Meng ◽  
Jiaxu Zhang ◽  
Xiang Wang ◽  
Sijie Wu ◽  
...  

High-activity bimetallic oxygen evolution reaction (OER) cocatalyst for efficient photoelectrochemical water splitting of BiVO4.


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