Enhanced water oxidation reaction kinetics on a BiVO4 photoanode by surface modification with Ni4O4 cubane

2019 ◽  
Vol 7 (1) ◽  
pp. 278-288 ◽  
Author(s):  
Bin Gao ◽  
Tao Wang ◽  
Xiaoli Fan ◽  
Hao Gong ◽  
Peng Li ◽  
...  
Keyword(s):  
Surface Modification ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
Adsorbed Layer ◽  
Highly Efficient ◽  
Photoelectrochemical Water Oxidation

Ni4O4 cubane is combined with a BiVO4 photoanode via an Al2O3 adsorbed layer for highly efficient and stable photoelectrochemical water oxidation.

In situ growth of α-Fe2O3@Co3O4 core–shell wormlike nanoarrays for a highly efficient photoelectrochemical water oxidation reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 1111-1122 ◽  
Author(s):  
Chunmei Li ◽  
Zhihui Chen ◽  
Weiyong Yuan ◽  
Qing-Hua Xu ◽  
Chang Ming Li
Keyword(s):  
Water Oxidation ◽  
Oxidation Reaction ◽  
Core Shell ◽  
In Situ Growth ◽  
Highly Efficient ◽  
Oxidation Performance ◽  
Photoelectrochemical Water Oxidation

α-Fe2O3@Co3O4 core–shell wormlike nanoarrays were fabricated via in situ growth of Co3O4 on wormlike α-Fe2O3, showing superior photoelectrochemical water oxidation performance.

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>

Bifunctional citrate-Ni0.9Co0.1(OH)x layer coated fluorine-doped hematite for simultaneous hole extraction and injection towards efficient photoelectrochemical water oxidation

Nanoscale ◽  
2021 ◽  
Author(s):  
Peng Wang ◽  
Feng Li ◽  
Xuefeng Long ◽  
Tong Wang ◽  
Huan Chai ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Surface Oxygen ◽  
Co Catalyst ◽  
Photoelectrochemical Water Oxidation

Surface modification by loading a water oxidation co-catalyst (WOC) is generally considered to be an efficient means to optimize the sluggish surface oxygen evolution reaction (OER) of hematite photoanode for...

Ultrathin FeFx nanolayers accelerating hole transfer for enhanced photoelectrochemical water oxidation

2018 ◽  
Vol 6 (40) ◽  
pp. 19342-19346 ◽  
Author(s):  
Chenchen Feng ◽  
Lei Wang ◽  
Shurong Fu ◽  
Kai Fan ◽  
Yajun Zhang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Hole Transfer ◽  
Highly Efficient ◽  
Photoelectrochemical Water Oxidation

Here, we demonstrate the in situ growth of ultrathin FeFx nanolayers on Fe2O3 photoanodes, acting as a highly efficient cocatalyst to accelerate hole transfer for improving PEC activity.

Enhancing the Photoelectrochemical Water Oxidation Reaction of BiVO4 Photoanode by Employing Carbon Spheres as Electron Reservoirs

ACS Catalysis ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 13031-13039
Author(s):  
Minrui Wang ◽  
Zeyan Wang ◽  
Bo Zhang ◽  
Weiyi Jiang ◽  
Xiaolei Bao ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Reaction ◽  
Carbon Spheres ◽  
Photoelectrochemical Water Oxidation

In situ synthesis of FeP-decorated Ti–Fe2O3: an effective strategy to improve the interfacial charge transfer in the photoelectrochemical water oxidation reaction

2019 ◽  
Vol 9 (20) ◽  
pp. 5812-5818 ◽  
Author(s):  
Qijing Bu ◽  
Shuo Li ◽  
Qiannan Wu ◽  
Yanhong Lin ◽  
Dejun Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
In Situ Synthesis ◽  
Effective Strategy ◽  
Interfacial Charge Transfer ◽  
Efficient Charge ◽  
Interfacial Charge ◽  
Photoelectrochemical Water Oxidation

The unprecedented FeP/Ti–Fe2O3 possesses the advantages of efficient charge transfer in the bulk photoanode and at the interface of the photoanode and the electrolyte.

Improvement of the water oxidation performance of Ti, F co-modified hematite by surface modification with a Co(salen) molecular cocatalyst

2020 ◽  
Vol 8 (41) ◽  
pp. 21613-21622
Author(s):  
Ruiling Wang ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Catherine Louis ◽  
Yuyu Bu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Water Oxidation ◽  
Oxidation Performance ◽  
Ti Doping ◽  
Photoelectrochemical Water Oxidation ◽  
New System

A new system by combining Ti-doping and F-treatment in hematite modified with Co(salen) as a cocatalyst exhibits enhanced photoelectrochemical water oxidation performance.

Highly dispersed SmMn2O5 nanorods for electrochemical water oxidation reaction kinetics

2019 ◽  
Vol 6 (9) ◽  
pp. 095090 ◽  
Author(s):  
B Jansi Rani ◽  
M Gowsalya ◽  
G Ravi ◽  
R Yuvakkumar ◽  
S I Hong
Keyword(s):  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
Highly Dispersed

Highly efficient photoelectrochemical water oxidation enabled by enhanced interfacial interaction in 2D/1D In2S3@Bi2S3 heterostructures

2020 ◽  
Vol 8 (11) ◽  
pp. 5612-5621 ◽  
Author(s):  
Yuli Xiong ◽  
Lin Yang ◽  
Dilip Krishna Nandakumar ◽  
Yibin Yang ◽  
Hongmei Dong ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Interfacial Interaction ◽  
Highly Efficient ◽  
Vdw Heterostructure ◽  
Photoelectrochemical Water Oxidation

The interfacial interaction in the In2S3@Bi2S3 vdW heterostructure is beneficial for transferring photogenerated holes to the surface with efficient water oxidation.

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