Electronic Modulation of NiS-PBA/CNT with Boosted Water Oxidation Performance Realized by a Rapid Microwave-Assisted in-situ Partial Sulfidation

2021 ◽  
pp. 130481
Author(s):  
Bin Wang ◽  
Xinqiang Wang ◽  
Zegao Wang ◽  
Katam Srinivas ◽  
Xiaojuan Zhang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Microwave Assisted ◽  
Oxidation Performance

scholarly journals An aqueous preoxidation method for monolithic perovskite electrocatalysts with enhanced water oxidation performance

2016 ◽  
Vol 2 (10) ◽  
pp. e1600495 ◽  
Author(s):  
Bo-Quan Li ◽  
Cheng Tang ◽  
Hao-Fan Wang ◽  
Xiao-Lin Zhu ◽  
Qiang Zhang
Keyword(s):  
Water Oxidation ◽  
Fenton Reaction ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Active Phase ◽  
Perovskite Oxides ◽  
High Temperature Annealing ◽  
Current Collectors ◽  
Oxidation Performance

Perovskite oxides with poor conductivity call for three-dimensional (3D) conductive scaffolds to demonstrate their superb reactivities for oxygen evolution reaction (OER). However, perovskite formation usually requires high-temperature annealing at 600° to 900°C in air, under which most of the used conductive frameworks (for example, carbon and metal current collectors) are reductive and cannot survive. We propose a preoxidization coupled electrodeposition strategy in which Co2+ is preoxidized to Co3+ through cobalt Fenton reaction in aqueous solution, whereas the reductive nickel framework is well maintained during the sequential annealing under nonoxidative atmosphere. The in situ–generated Co3+ is inherited into oxidized perovskites deposited on 3D nickel foam, rendering the monolithic perovskite electrocatalysts with extraordinary OER performance with an ultralow overpotential of 350 mV required for 10 mA cm−2, a very small Tafel slope of 59 mV dec−1, and superb stability in 0.10 M KOH. Therefore, we inaugurate a unique strategy for in situ hybridization of oxidative active phase with reductive framework, affording superb reactivity of perovskite electrocatalyst for efficient 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.

In Situ Decorating Coordinatively Unsaturated Fe Sites for Boosting Water Oxidation Performance of TiO 2 Photoanode

2019 ◽  
Vol 7 (7) ◽  
pp. 1801128 ◽  
Author(s):  
Weicheng Cui ◽  
Hongye Bai ◽  
Konggang Qu ◽  
Fagen Wang ◽  
Peng Guan ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Performance ◽  
Fe Sites

In situ formation of a ZnO/ZnSe nanonail array as a photoelectrode for enhanced photoelectrochemical water oxidation performance

Nanoscale ◽  
2016 ◽  
Vol 8 (17) ◽  
pp. 9366-9375 ◽  
Author(s):  
Liyang Wang ◽  
Guohui Tian ◽  
Yajie Chen ◽  
Yuting Xiao ◽  
Honggang Fu
Keyword(s):  
Water Oxidation ◽  
Oxidation Performance ◽  
In Situ Formation ◽  
Photoelectrochemical Water Oxidation
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