Photoelectrochemical water oxidation kinetics and antibacterial studies of one-dimensional SiC nanowires synthesized from industrial waste

2021 ◽  
Author(s):  
I. Neelakanta Reddy ◽  
Adem Sreedhar ◽  
Mohan Reddy Pallavolu ◽  
L. Veeranjaneya Reddy ◽  
Migyung Cho ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Industrial Waste ◽  
One Dimensional ◽  
Antibacterial Studies ◽  
Sic Nanowires ◽  
Photoelectrochemical Water Oxidation

Effect of surface overlayer in enhancing the photoelectrochemical water oxidation of in situ grown one-dimensional spinel zinc ferrite nanorods directly onto the substrate

2018 ◽  
Vol 54 (74) ◽  
pp. 10483-10486 ◽  
Author(s):  
Tushar Kanta Sahu ◽  
Adit Kumar Shah ◽  
Gaurangi Gogoi ◽  
Anindya Sundar Patra ◽  
Mohammad Shaad Ansari ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Zinc Ferrite ◽  
Surface Defects ◽  
One Dimensional ◽  
Charge Extraction ◽  
Back Transfer ◽  
Photoelectrochemical Water Oxidation ◽  
Effect Of Surface

Overlayer passivation minimizes surface defects and arrests the back transfer of electrons for an enhanced charge extraction.

Insights into the multiple effects of oxygen vacancies on CuWO4 for photoelectrochemical water oxidation

2020 ◽  
Vol 10 (21) ◽  
pp. 7344-7351
Author(s):  
Wenlong Guo ◽  
Ya Wang ◽  
Xin Lian ◽  
Yao Nie ◽  
Shijia Tian ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxygen Vacancies ◽  
Charge Recombination ◽  
Transfer Time ◽  
Photoelectrochemical Water Oxidation

For CuWO4, oxygen vacancies can shorten the electron transfer time and boost the water oxidation kinetics, but they aggravate the charge recombination on the surface.

Improved photoelectrochemical water oxidation kinetics using a TiO2 nanorod array photoanode decorated with graphene oxide in a neutral pH solution

2015 ◽  
Vol 17 (12) ◽  
pp. 7714-7719 ◽  
Author(s):  
Sang Youn Chae ◽  
Pitchaimuthu Sudhagar ◽  
Akira Fujishima ◽  
Yun Jeong Hwang ◽  
Oh-Shim Joo
Keyword(s):  
Graphene Oxide ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxide Coating ◽  
Nanorod Array ◽  
Tio2 Nanorod ◽  
Neutral Ph ◽  
Tio2 Nanorod Array ◽  
Photoelectrochemical Water Oxidation

Opposite contributions of graphene oxide are obtained in TiO2 nanorod array photoanodes, in electrolytes of varying pH, for the water splitting application. The photocurrent of TiO2 photoanode is improved, after graphene oxide coating, in a neutral pH electrolyte, while it decreases in a basic electrolyte.

Boosting the efficiency of water oxidation via surface states on hematite photoanodes by incorporating Bi3+ ions

2020 ◽  
Vol 4 (8) ◽  
pp. 4207-4218
Author(s):  
Abdul Zeeshan Khan ◽  
Tarek A. Kandiel ◽  
Safwat Abdel-Azeim ◽  
Khalid Alhooshani
Keyword(s):  
Crystal Structure ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxygen Vacancies ◽  
Surface States ◽  
The Creation ◽  
Photoelectrochemical Water Oxidation

The incorporation of Bi3+ ions into the hematite crystal structure induces the creation of oxygen vacancies and boosts the photoelectrochemical water oxidation kinetics.

scholarly journals Surface Modification of Hematite Photoanodes with CeO x Cocatalyst for Improved Photoelectrochemical Water Oxidation Kinetics

ChemSusChem ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5489-5496
Author(s):  
Mahmoud G. Ahmed ◽  
Mengyuan Zhang ◽  
Ying Fan Tay ◽  
Sing Yang Chiam ◽  
Lydia H. Wong
Keyword(s):  
Surface Modification ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Photoelectrochemical Water Oxidation

Optimization of charge transport in a Co–Pi modified hematite thin film produced by scalable electron beam evaporation for photoelectrochemical water oxidation

2017 ◽  
Vol 5 (7) ◽  
pp. 3412-3424 ◽  
Author(s):  
Behrooz Eftekharinia ◽  
Ahmad Moshaii ◽  
Ali Dabirian ◽  
Nader Sobhkhiz Vayghan
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
Charge Transport ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Electron Beam Evaporation ◽  
Photoelectrochemical Water Oxidation

The Co–Pi cocatalyst improves the PEC performance of a hematite film by accelerating the H2O oxidation kinetics and suppressing the charge recombinations.

Electrochemical and photoelectrochemical water splitting with a CoOx catalyst prepared by flame assisted deposition

2020 ◽  
Vol 49 (3) ◽  
pp. 588-592 ◽  
Author(s):  
Fusheng Li ◽  
Ziqi Zhao ◽  
Hao Yang ◽  
Dinghua Zhou ◽  
Yilong Zhao ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxide Catalyst ◽  
Photoelectrochemical Water Splitting ◽  
Deposition Method ◽  
Photoelectrochemical Water Oxidation

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.

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>

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