Results 11 to 20 of about 3,746 (214)

Photocorrosion of WO₃ Photoanodes in Different Electrolytes [PDF]

ACS Physical Chemistry Au, 2021
Photocorrosion of an n-type semiconductor is anticipated to be unfavorable if its decomposition potential is situated below its valence band-edge position. Tungsten trioxide (WO3) is generally considered as a stable photoanode for different photoelectrochemical (PEC) applications.
Julius Knöppel, Attila Kormányos, Britta Mayerhöfer, André Hofer, Markus Bierling, Julien Bachmann, Simon Thiele, Serhiy Cherevko   +7 more
openaire   +4 more sources

Controlled Porosity in Ferroelectric BaTiO₃ Photoanodes

ACS Applied Materials & Interfaces, 2022
The use of ferroelectric polarization to promote electron-hole separation has emerged as a promising strategy to improve photocatalytic activity. Although ferroelectric thin films with planar geometry have been largely studied, nanostructured and porous ferroelectric thin films have not been commonly used in photo-electrocatalysis.
Augurio, Adriana, Alvarez-Fernandez, Alberto, Panchal, Vishal, Pittenger, Bede, De Wolf, Peter, Guldin, Stefan, Briscoe, Joe   +6 more
openaire   +3 more sources

Photocorrosion Mechanism of TiO₂-Coated Photoanodes [PDF]

International Journal of Photoenergy, 2015
Atomic layer deposition was used to coat CdS photoanodes with 7 nm thick TiO2films to protect them from photocorrosion during photoelectrochemical water splitting. Photoelectrochemical measurements indicate that the TiO2coating does not provide full protection against photocorrosion.
Didden, A., Hillebrand, P., Dam, B., van de Krol, R.   +3 more
openaire   +3 more sources

A conductive metal–organic framework photoanode

Chemical Science, 2020
We report the development of photosensitizing arrays based on conductive metal–organic frameworks (MOFs) that enable light harvesting and efficient charge separation.
Brian Pattengale, Jessica G. Freeze, Matthew J. Guberman-Pfeffer, Ryotaro Okabe, Sarah Ostresh, Subhajyoti Chaudhuri, Victor S. Batista, Charles A. Schmuttenmaer   +7 more
openaire   +3 more sources

The Self-Passivation Mechanism in Degradation of BiVO4 Photoanode [PDF]

iScience, 2019
BiVO4 is a promising photoanode material for solar-assisted water splitting in a photoelectrochemical cell but has a propensity to degrade. Investigations carried out here in 0.1 M Na2SO4 electrolyte showed that degradation is by dissolution of V in the electrolyte while Bi is retained on the anode probably in the form of solid Bi oxide (Bi2O3, Bi4O7).
Xin Yao, Xin Zhao, Jun Hu, Huiqing Xie, Danping Wang, Xun Cao, Zheng Zhang, Yizhong Huang, Zhong Chen, Thirumany Sritharan   +9 more
openaire   +4 more sources

Ultrathin Hematite Photoanode with Gradient Ti Doping [PDF]

Research, 2020
The poor photoelectrochemical (PEC) performance derived from insufficient charge separation in hematite photoanode crucially limits its application. Gradient doping with band bending in a large region is then considered as a promising strategy, facilitating the charge transfer ability due to the built-in electric field.
Pengfei Liu, Chongwu Wang, Lijie Wang, Xuefeng Wu, Lirong Zheng, Hua Gui Yang   +5 more
openaire   +5 more sources

Degradation of oxynitride based photoanodes.

J Mater Chem A Mater
Investigating the current evolution of oxynitride photoanodes over time revealed two exponential decay processes. In-depth analysis of the showcase LaTiO 2 N identified surface oxidation and cocatalyst dissolution as causes of the current decrease.
Hörndl J, Zalesak J, Bedoya-Lora FE, Haussener S, Pokrant S.   +4 more
europepmc   +3 more sources

Synthesis and Characterization of Photoanode by Immobilisation of Pyridyl Complexes on ITO for Photo-Conversion System

Pakistan Journal of Analytical & Environmental Chemistry, 2023
Increasing developments on the application of copper complexes as dyes are due to their dual function in dye-sensitized solar cells (DSSCs) as redox mediators and dye sensitizers.
Anis Kharul Nada Mohd Yusuf, Suzaliza Mustafar, Ma. Leah Borines, Etty Nurlia Kusumawati, Yusnita Juahir, Noorshida Mohd Ali, Norhayati Hashim   +6 more
doaj   +1 more source

CeOx as Surface Passivation and Hole Transfer Catalyst Layer Boosting Solar Water Oxidation of ZnFe2O4 Nanorods Photoanode

Advanced Materials Interfaces, 2023
Severe surface photocarrier recombination and poor electronic conductivity are the major factors behind the sluggish photoelectrochemical water oxidation kinetics of the ZnFe2O4 photoanode.
Dipanjan Maity, Debashish Pal, Soham Saha, Pooja Punetha, Debasish Sarkar, Debasis De, Gobinda Gopal Khan, Kalyan Mandal   +7 more
doaj   +1 more source

Application of Covalent Organic Frameworks (COFs) as Dyes and Additives for Dye-Sensitized Solar Cells (DSSCs)

Nanomaterials, 2023
Five Covalent Organic Frameworks (COFs) were synthesized and applied to Dye-Sensitized Solar Cells (DSSCs) as dyes and additives. These porous nanomaterials are based on cheap, abundant commercially available ionic dyes (thionin acetate RIO-43, Bismarck ...
Diogo Inácio, Ana Lucia Pinto, Ana B. Paninho, Luis C. Branco, Sunny K. S. Freitas, Hugo Cruz   +5 more
doaj   +1 more source