Cu2O/CuO heterojunction formed by thermal oxidation and decorated with Pt co-catalyst as an efficient photocathode for photoelectrochemical water splitting

2021 ◽  
Vol 23 (12) ◽  
Author(s):  
Pan Wang ◽  
Zhifeng Liu ◽  
Changcun Han ◽  
Xinguo Ma ◽  
Zhengfu Tong ◽  
...  
Keyword(s):  
Thermal Oxidation ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Co Catalyst

Cadmium sulfide Co-catalyst reveals the crystallinity impact of nickel oxide photocathode in photoelectrochemical water splitting

2019 ◽  
Vol 44 (37) ◽  
pp. 20851-20856 ◽  
Author(s):  
Yoshitaka Suzuki ◽  
Zhirun Xie ◽  
Xunyu Lu ◽  
Yoke Wang Cheng ◽  
Rose Amal ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Cadmium Sulfide ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Co Catalyst

scholarly journals A significant cathodic shift in the onset potential of photoelectrochemical water splitting for hematite nanostructures grown from Fe–Si alloys

2014 ◽  
Vol 1 (3) ◽  
pp. 344-347 ◽  
Author(s):  
Lei Wang ◽  
Chong-Yong Lee ◽  
Robin Kirchgeorg ◽  
Helga Hildebrand ◽  
Julian Müller ◽  
...  
Keyword(s):  
Thermal Oxidation ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Onset Potential

Thermal oxidation of Fe to nanostructured hematite (wires, flakes) is currently widely investigated to produce efficient photoanodes for photoelectrochemical water splitting.

Elucidating the role of surface states of BiVO4 with Mo doping and a CoOOH co-catalyst for photoelectrochemical water splitting

2021 ◽  
Vol 483 ◽  
pp. 229080
Author(s):  
Rambabu Yalavarthi ◽  
Radek Zbořil ◽  
Patrik Schmuki ◽  
Alberto Naldoni ◽  
Štěpán Kment
Keyword(s):  
Water Splitting ◽  
Surface States ◽  
Photoelectrochemical Water Splitting ◽  
Co Catalyst ◽  
Mo Doping

scholarly journals Enhanced Photoelectrochemical Water Splitting at Hematite Photoanodes by Effect of a NiFe-Oxide co-Catalyst

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 525 ◽  
Author(s):  
Carmelo Lo Vecchio ◽  
Stefano Trocino ◽  
Sabrina Campagna Zignani ◽  
Vincenzo Baglio ◽  
Alessandra Carbone ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Low Cost ◽  
Cost Effective ◽  
Photoelectrochemical Water Splitting ◽  
Solid Polymer ◽  
Solar Simulator ◽  
Co Catalyst ◽  
Electrolyte Membrane

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).

Construction homojunction and co-catalyst in ZnIn2S4 photoelectrode by Co ion doping for efficient photoelectrochemical water splitting

2021 ◽  
Vol 867 ◽  
pp. 159028
Author(s):  
Hongxia Qian ◽  
Zhifeng Liu ◽  
Jing Ya ◽  
Ying Xin ◽  
Jianli Ma ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Co Catalyst ◽  
Ion Doping
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