Light induced formation of a surface heterojunction in photocharged CuWO4 photoanodes

2019 ◽  
Vol 215 ◽  
pp. 175-191 ◽  
Author(s):  
Anirudh Venugopal ◽  
Wilson A. Smith
Keyword(s):  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Charge Separation ◽  
Electrolyte Interface

Photocharging of CuWO4 photoanodes enhances its water oxidation kinetics as a result of improved charge separation near the electrode/electrolyte interface post photocharging.

p-Type NiO modified BiVO4 photoanodes with enhanced charge separation and solar water oxidation kinetics

2019 ◽  
Vol 249 ◽  
pp. 128-131 ◽  
Author(s):  
Qitong Huang ◽  
Yi Qiu ◽  
Heng Luo ◽  
Yufei Yuan ◽  
Xibo Li ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Charge Separation ◽  
Solar Water ◽  
Solar Water Oxidation ◽  
P Type

Impact Of Synthesis Route on the Water Oxidation Kinetics of Hematite Photoanodes

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Charge Accumulation ◽  
Optical Signals ◽  
Current Voltage ◽  
Voltage Performance ◽  
Kinetics Of

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>

Rutile TiO2 single crystals delivering enhanced photocatalytic oxygen evolution performance

Nanoscale ◽  
2021 ◽  
Author(s):  
Bing Fu ◽  
Zhijiao Wu ◽  
Kai Guo ◽  
Lingyu Piao
Keyword(s):  
Catalytic Activity ◽  
Single Crystals ◽  
Oxygen Evolution ◽  
Water Oxidation ◽  
Charge Separation ◽  
High Surface ◽  
Rutile Tio2 ◽  
Highly Efficient ◽  
Photogenerated Charge Separation

Owing to their scientific and technological importance, the development of highly efficient photocatalytic water oxidation systems with rapid photogenerated charge separation and high surface catalytic activity has highly desirable for...

scholarly journals WO3/BiVO4: impact of charge separation at the timescale of water oxidation

2019 ◽  
Vol 10 (9) ◽  
pp. 2643-2652 ◽  
Author(s):  
Shababa Selim ◽  
Laia Francàs ◽  
Miguel García-Tecedor ◽  
Sacha Corby ◽  
Chris Blackman ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Oxidation ◽  
Charge Separation ◽  
Carrier Dynamics ◽  
Applied Bias ◽  
Charge Carrier Dynamics

Unveiling the role of applied bias on the charge carrier dynamics in the WO3/BiVO4 junction during water oxidation.

scholarly journals Regulation of Ferroelectric Polarization to Achieve Efficient Charge Separation and Transfer in Particulate RuO 2 /BiFeO 3 for High Photocatalytic Water Oxidation Activity

Small ◽  
2021 ◽  
Vol 17 (3) ◽  
pp. 2007044
Author(s):  
Jafar H. Shah ◽  
Biaohong Huang ◽  
Ahmed M. Idris ◽  
Yong Liu ◽  
Anum S. Malik ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Charge Separation ◽  
Ferroelectric Polarization ◽  
Oxidation Activity ◽  
Efficient Charge

Two photon tandem photoanode with black phosphorous quantum dot sensitized BiVO4 for solar water splitting

2022 ◽  
Author(s):  
Bingjun Jin ◽  
Yoonjun Cho ◽  
Cheolwoo Park ◽  
Jeehun Jeong ◽  
Sungsoon Kim ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Light Harvesting ◽  
Charge Recombination ◽  
Solar Water ◽  
Two Photon ◽  
Solar Water Splitting ◽  
Pec Water Splitting

The photoelectrochemical (PEC) water splitting efficiency is profoundly restricted by the limited light harvesting, rapid charge recombination, and sluggish water oxidation kinetics, in which the construction of a photoelectrode requires...

scholarly journals Improved Charge Separation in WO3/CuWO4 Composite Photoanodes for Photoelectrochemical Water Oxidation

Materials ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 348 ◽  
Author(s):  
Danping Wang ◽  
Prince Bassi ◽  
Huan Qi ◽  
Xin Zhao ◽  
Gurudayal ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Charge Separation ◽  
Photoelectrochemical Water Oxidation
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