Increasing Charge Separation Property and Water Oxidation Activity of BiVO4 Photoanodes via a Postsynthetic Treatment

2019 ◽  
Vol 124 (2) ◽  
pp. 1337-1345 ◽  
Author(s):  
Mahsa Barzgar Vishlaghi ◽  
Abdullah Kahraman ◽  
Sarp Kaya
Keyword(s):  
Water Oxidation ◽  
Charge Separation ◽  
Separation Property ◽  
Oxidation Activity

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

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 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

Water oxidation activity of azo‐azomethine‐based Ni (II), Co (II), and Cu (II) complexes

2021 ◽  
Vol 35 (3) ◽  
Author(s):  
Zohreh Shaghaghi ◽  
Parya Sallakh Kouhsangini ◽  
Rahim Mohammad‐Rezaei
Keyword(s):  
Water Oxidation ◽  
Oxidation Activity

Fluorine-surface-modified tin-doped hematite nanorod array photoelectrodes with enhanced water oxidation activity

2021 ◽  
pp. 149898
Author(s):  
Nguyen Duc Quang ◽  
Phuoc Cao Van ◽  
Duc Duy Le ◽  
Sutripto Majumder ◽  
Nguyen Duc Chinh ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Nanorod Array ◽  
Oxidation Activity ◽  
Surface Modified

Improving photoelectrochemical water oxidation activity of BiFeO3 photoanode via surface passivation

2021 ◽  
Vol 119 (1) ◽  
pp. 013903
Author(s):  
Qian Yu ◽  
Minji Yang ◽  
Xin Luo ◽  
Zeyu Fan ◽  
Qianbao Wu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Surface Passivation ◽  
Oxidation Activity ◽  
Photoelectrochemical Water Oxidation

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 Hydrophobic Interactions of Ru-bda-Type Catalysts for Promoting Water Oxidation Activity

2021 ◽  
Author(s):  
Tianqi Liu ◽  
Ge Li ◽  
Nannan Shen ◽  
Mårten S. G. Ahlquist ◽  
Licheng Sun
Keyword(s):  
Water Oxidation ◽  
Hydrophobic Interactions ◽  
Oxidation Activity

Soluble lanthanide-transition-metal clusters Ln36Co12 as effective molecular electrocatalysts for water oxidation

2021 ◽  
Vol 57 (29) ◽  
pp. 3611-3614
Author(s):  
Rong Chen ◽  
Chao-Long Chen ◽  
Ming-Hao Du ◽  
Xing Wang ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Synergistic Effect ◽  
Water Oxidation ◽  
Metal Clusters ◽  
Bond Formation ◽  
Transition Metal Clusters ◽  
Oxidation Activity ◽  
Acidic Conditions ◽  
Effective Water

The stable 48-metal Ln36Co12 clusters show an effective water oxidation activity under weak acidic conditions because of the synergistic effect between lanthanide and transition metals in O–O bond formation.

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