Loading...
Search for:
photo-electrochemical-oxidations
0.005 seconds
Spray pyrolysis deposition of ZnFe2O4/Fe2O3 composite thin films on hierarchical 3-D nanospikes for efficient photoelectrochemical oxidation of water
, Article Journal of Physical Chemistry C ; Volume 121, Issue 34 , 2017 , Pages 18360-18368 ; 19327447 (ISSN) ; Hussain, S ; Waleed, A ; Tavakoli, M. M ; Yang, S ; Khawar Rauf, M ; Fan, Z ; Arif Nadeem, M ; Sharif University of Technology
Abstract
In this work, we study the role of nanotextured ZnFe2O4/Fe2O3composite thin films fabricated by ultrasonic spray pyrolysis (USP) on the photoelectrochemical water oxidation reactions. The ZnFe2O4/Fe2O3 composites with different molar ratios are deposited on three-dimensional nanospikes (NSP) substrate, and the results are compared with those for planar devices. It is observed that optical absorption and charge separation due to larger surface area is significantly enhanced in nanotextured photoactive ZnFe2O4/Fe2O3 films. After characterization of ZnFe2O4/Fe2O3 composite films with different molar ratios (ZF1, ZF2, and ZF3), we find that the nanotextured ZF1 composite with a molar ratio of...
Nanotextured spikes of α-Fe2O3/NiFe2O4 composite for efficient photoelectrochemical oxidation of water
, Article Langmuir ; Volume 34, Issue 12 , 2018 , Pages 3555-3564 ; 07437463 (ISSN) ; Tavakoli, M. M ; Waleed, A ; Virk, U. S ; Yang, S ; Waseem, A ; Fan, Z ; Nadeem, M. A ; Sharif University of Technology
American Chemical Society
2018
Abstract
We demonstrate for the first time the application of p-NiFe2O4/n-Fe2O3 composite thin films as anode materials for light-assisted electrolysis of water. The p-NiFe2O4/n-Fe2O3 composite thin films were deposited on planar fluorinated tin oxide (FTO)-coated glass as well as on 3D array of nanospike (NSP) substrates. The effect of substrate (planar FTO and 3D-NSP) and percentage change of each component (i.e., NiFe2O4 and Fe2O3) of composite was studied on photoelectrochemical (PEC) water oxidation reaction. This work also includes the performance comparison of p-NiFe2O4/n-Fe2O3 composite (planar and NSP) devices with pure hematite for PEC water oxidation. Overall, the nanostructured...