Effect of Catalytically Silent Cerium Hydroxide in Cobalt–Cerium Mixed Double Hydroxide for Enhanced Water Oxidation Kinetics in a BiVO4 Photoanode

2020 ◽  
Vol 3 (6) ◽  
pp. 5610-5619 ◽  
Author(s):  
Tushar Kanta Sahu ◽  
Suhaib Alam ◽  
Devipriya Gogoi ◽  
Nageswara Rao Peela ◽  
Mohammad Qureshi
Keyword(s):  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Double Hydroxide ◽  
Cerium Hydroxide

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>

Fast microwave-assisted preparation of nickel–copper–chromium-layered double hydroxide as an excellent electrocatalyst for water oxidation

2021 ◽  
Author(s):  
Kamellia Nejati ◽  
Leila Jafari Foruzin ◽  
Zolfaghar Rezvani
Keyword(s):  
Charge Transfer ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Bandgap Energy ◽  
Microwave Method ◽  
Optimal Amount ◽  
Microwave Assisted ◽  
Nickel Copper ◽  
Copper Chromium ◽  
Double Hydroxide

A well-designed NiCuCr-LDH was prepared using a simple microwave method. According to the OER results, doping optimal amount of Cu2+ into NiCr-LDH displayed superior OER activity, due to decreased bandgap energy and improved charge transfer.

Acid-Corrosion-Induced Hollow-Structured NiFe-Layered Double Hydroxide Electrocatalysts for Efficient Water Oxidation

2021 ◽  
Vol 4 (9) ◽  
pp. 9022-9031
Author(s):  
Peican Wang ◽  
Yuqun Lin ◽  
Qin Xu ◽  
Ziang Xu ◽  
Lei Wan ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Acid Corrosion ◽  
Double Hydroxide

Ultrathin nickel–iron layered double hydroxide nanosheets intercalated with molybdate anions for electrocatalytic water oxidation

2015 ◽  
Vol 3 (31) ◽  
pp. 16348-16353 ◽  
Author(s):  
Na Han ◽  
Feipeng Zhao ◽  
Yanguang Li
Keyword(s):  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Nickel Iron ◽  
Ultrathin Nanosheets ◽  
Double Hydroxide

Incorporation of molybdate ions into a NiFe-LDH structure leads to the formation of ultrathin nanosheets with enhanced OER performance.

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...

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.

scholarly journals Introducing Fe2+ into Nickel-Iron Layered Double Hydroxide: Local Structure Modulated Water Oxidation Activity

2018 ◽  
Vol 57 (30) ◽  
pp. 9392-9396 ◽  
Author(s):  
Zhao Cai ◽  
Daojin Zhou ◽  
Maoyu Wang ◽  
Seong-Min Bak ◽  
Yueshen Wu ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Local Structure ◽  
Oxidation Activity ◽  
Nickel Iron ◽  
Double Hydroxide
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