Integration of LaCo(OH)x Photo-Electrocatalyst and Plasmonic Gold Nanoparticles with Sb-Doped TiO2 Nanorods for Photoelectrochemical Water Oxidation

Author(s):  
Debashish Pal ◽  
Ayan Sarkar ◽  
Nani Gopal Ghosh ◽  
Devendra Mayurdhwaj Sanke ◽  
Dipanjan Maity ◽  
...  
2017 ◽  
Vol 1 (2) ◽  
pp. 248-253 ◽  
Author(s):  
Dong-Dong Qin ◽  
Qiu-Hong Wang ◽  
Jing Chen ◽  
Cai-Hua He ◽  
Yang Li ◽  
...  

Phosphorus-doped TiO2 nanotube arrays have been prepared via a phosphine annealing protocol and have been found to be efficient as a photoanode for visible-light-driven water oxidation.


Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 983 ◽  
Author(s):  
Shiman He ◽  
Yuying Meng ◽  
Yangfei Cao ◽  
Senchuan Huang ◽  
Jingling Yang ◽  
...  

TiO2 is one of the most attractive semiconductors for use as a photoanode for photoelectrochemical (PEC) water oxidation. However, the large-scale application of TiO2 photoanodes is restricted due to a short hole diffusion length and low electron mobility, which can be addressed by metal doping and surface decorating. In this paper we report the successful synthesis of hierarchical Ta doped TiO2 nanorod arrays, with nanoparticles on the top (Ta:TiO2), on F-doped tin oxide (FTO) glass by a hydrothermal method, and its application as photoanodes for photoelectrochemical water oxidation. It has been found that the incorporation of Ta5+ in the TiO2 lattice can decrease the diameter of surface TiO2 nanoparticles. Ta:TiO2-140, obtained with a moderate Ta concentration, yields a photocurrent of ∼1.36 mA cm−2 at 1.23 V vs. a reversible hydrogen electrode (RHE) under FTO side illumination. The large photocurrent is attributed to the large interface area of the surface TiO2 nanoparticles and the good electron conductivity due to Ta doping. Besides, the electron trap-free model illustrates that Ta:TiO2 affords higher transport speed and lower electron resistance when under FTO side illumination.


2020 ◽  
Vol 49 (3) ◽  
pp. 588-592 ◽  
Author(s):  
Fusheng Li ◽  
Ziqi Zhao ◽  
Hao Yang ◽  
Dinghua Zhou ◽  
Yilong Zhao ◽  
...  

A cobalt oxide catalyst prepared by a flame-assisted deposition method on the surface of FTO and hematite for electrochemical and photoelectrochemical water oxidation, respectively.


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