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

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

Small ◽  
2020 ◽  
Vol 16 (44) ◽  
pp. 2003361
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

Hexagonal Boron Nitride Quantum Dots as a Superior Hole Extractor for Efficient Charge Separation in WO3-Based Photoelectrochemical Water Oxidation

2019 ◽  
Vol 2 (10) ◽  
pp. 7457-7466 ◽  
Author(s):  
Manoj Kumar Mohanta ◽  
Tushar Kanta Sahu ◽  
Devipriya Gogoi ◽  
Nageswara Rao Peela ◽  
Mohammad Qureshi
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Water Oxidation ◽  
Charge Separation ◽  
Hexagonal Boron Nitride ◽  
Efficient Charge ◽  
Photoelectrochemical Water Oxidation

scholarly journals Comparison of photoelectrochemical water oxidation activity of a synthetic photocatalyst system with photosystem II

2014 ◽  
Vol 176 ◽  
pp. 199-211 ◽  
Author(s):  
Yi-Hsuan Lai ◽  
Masaru Kato ◽  
Dirk Mersch ◽  
Erwin Reisner
Keyword(s):  
Photosystem Ii ◽  
Indium Tin Oxide ◽  
Water Oxidation ◽  
Charge Separation ◽  
High Energy ◽  
Oxidation Catalysis ◽  
Hydrogen Electrode ◽  
Oxidation Activity ◽  
Indium Tin Oxide Electrode ◽  
Onset Potential

This discussion describes a direct comparison of photoelectrochemical (PEC) water oxidation activity between a photosystem II (PSII)-functionalised photoanode and a synthetic nanocomposite photoanode. The semi-biological photoanode is composed of PSII from the thermophilic cyanobacterium Thermosynechococcus elongatus on a mesoporous indium tin oxide electrode (mesoITO|PSII). PSII embeds all of the required functionalities for light absorption, charge separation and water oxidation and ITO serves solely as the electron collector. The synthetic photoanode consists of a TiO2 and NiOx coated nanosheet-structured WO3 electrode (nanoWO3|TiO2|NiOx). The composite structure of the synthetic electrode allows mimicry of the functional key features in PSII: visible light is absorbed by WO3, TiO2 serves as a protection and charge separation layer and NiOx serves as the water oxidation electrocatalyst. MesoITO|PSII uses low energy red light, whereas nanoWO3|TiO2|NiOx requires high energy photons of blue-end visible and UV regions to oxidise water. The electrodes have a comparable onset potential at approximately 0.6 V vs. reversible hydrogen electrode (RHE). MesoITO|PSII reaches its saturation photocurrent at 0.84 V vs. RHE, whereas nanoWO3|TiO2|NiOx requires more than 1.34 V vs. RHE. This suggests that mesoITO|PSII suffers from fewer limitations from charge recombination and slow water oxidation catalysis than the synthetic electrode. MesoITO|PSII displays a higher ‘per active’ site activity, but is less photostable and displays a much lower photocurrent per geometrical surface area and incident photon to current conversion efficiency (IPCE) than nanoWO3|TiO2|NiOx.

scholarly journals Efficient charge separation and transfer of a TaON/BiVO4 heterojunction for photoelectrochemical water splitting

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13269-13273
Author(s):  
Na Li ◽  
Yi Jiang ◽  
Xiaodi Wang ◽  
Chongyang Hu ◽  
Wenchao Jiang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Charge Separation ◽  
Photoelectrochemical Water Splitting ◽  
Significant Enhancement ◽  
Efficient Charge ◽  
Photoelectrochemical Water Oxidation

TaON/BiVO4 heterojunction electrodes exhibited significant enhancement in the photoelectrochemical water oxidation.

Carbon quantum dot sensitized integrated Fe2O3@g-C3N4 core–shell nanoarray photoanode towards highly efficient water oxidation

2018 ◽  
Vol 6 (21) ◽  
pp. 9839-9845 ◽  
Author(s):  
Sha-Sha Yi ◽  
Jun-Min Yan ◽  
Qing Jiang
Keyword(s):  
Quantum Dot ◽  
Water Oxidation ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Carbon Quantum Dot ◽  
Efficient Charge ◽  
Oxidation Performance ◽  
Charge Separation Efficiency

The carbon quantum dot (CQD) sensitized integrated Ti:Fe2O3@g-C3N4 core–shell nanoarrays demonstrate superior PEC water oxidation performance which can be ascribed to efficient charge separation efficiency derived from the well-confined heterojunction structure together with the high catalytic activity of the CQDs for H2O2 decomposition.

Crystalline Fe 2 O 3 /Fe 2 TiO 5 heterojunction nanorods with efficient charge separation and hole injection as photoanode for solar water oxidation

Nano Energy ◽  
2016 ◽  
Vol 22 ◽  
pp. 310-318 ◽  
Author(s):  
Prince Saurabh Bassi ◽  
Rajini P. Antony ◽  
Pablo P. Boix ◽  
Yanan Fang ◽  
James Barber ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Charge Separation ◽  
Hole Injection ◽  
Solar Water ◽  
Efficient Charge ◽  
Solar Water Oxidation

scholarly journals A significant enhancement of bulk charge separation in photoelectrocatalysis by ferroelectric polarization induced in CdS/BaTiO3 nanowires

RSC Advances ◽  
2021 ◽  
Vol 11 (43) ◽  
pp. 26534-26545
Author(s):  
Zhiqi Jiang ◽  
Zhaohui Xiao ◽  
Zui Tao ◽  
Xu Zhang ◽  
Shiwei Lin
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
Ferroelectric Polarization ◽  
Significant Enhancement ◽  
Critical Factors ◽  
Efficient Charge ◽  
Bulk Charge ◽  
Pec Water Splitting

Efficient charge separation, in particular bulk charge separation (BCS), is one of the most critical factors in determining the performance of photoelectrochemical (PEC) water-splitting.

scholarly journals Hydrogen induced interface engineering in Fe2O3–TiO2 heterostructures for efficient charge separation for solar-driven water oxidation in photoelectrochemical cells

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4297-4307
Author(s):  
Aadesh P. Singh ◽  
Richard Baochang Wang ◽  
Camilla Tossi ◽  
Ilkka Tittonen ◽  
Björn Wickman ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Energy Band ◽  
Charge Separation ◽  
Energy Band Diagram ◽  
Photoelectrochemical Cells ◽  
Band Diagram ◽  
Interface Engineering ◽  
Anodic Potential ◽  
Efficient Charge

Approximate energy band diagram and charge transfer mechanism for the Fe2O3–TiO2 photoanode (left) and Fe2O3–H:TiO2 photoanode (right) with external applied anodic potential under illumination.

scholarly journals Correction to Synthesis, Characterization, and Water Oxidation Activity of Isomeric Ru Complexes

2021 ◽  
Vol 60 (9) ◽  
pp. 6852-6852
Author(s):  
Md Asmaul Hoque ◽  
Abhishek Dutta Chowdhury ◽  
Somnath Maji ◽  
Jordi Benet-Buchholz ◽  
Mehmed Z. Ertem ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Activity ◽  
Ru Complexes
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