Effect of morphology on the oxygen evolution reaction for La0.8Sr0.2Co0.2Fe0.8O3−δelectrochemical catalyst in alkaline media

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 69251-69256 ◽  
Author(s):  
Zhuang Wang ◽  
Mian Li ◽  
Chenghao Liang ◽  
Liquan Fan ◽  
Jianan Han ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Perovskite Oxides ◽  
Alkaline Media ◽  
Electrospinning Technique

A series of perovskite oxides La0.8Sr0.2Co0.2Fe0.8O3−δwith different morphologies have been synthesized as oxygen evolution reaction electrocatalysts by an electrospinning technique.

Surface Segregation Acts as Surface Engineering for the Oxygen Evolution Reaction on Perovskite Oxides in Alkaline Media

2020 ◽  
Vol 32 (12) ◽  
pp. 5256-5263
Author(s):  
Anthony Boucly ◽  
Emiliana Fabbri ◽  
Luca Artiglia ◽  
Xi Cheng ◽  
Daniele Pergolesi ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Surface Segregation ◽  
Surface Engineering ◽  
Perovskite Oxides ◽  
Alkaline Media

Thermally Prepared Mn2O3/RuO2/Ru Thin Films as Highly Active Catalysts for the Oxygen Evolution Reaction in Alkaline Media

2016 ◽  
Vol 3 (11) ◽  
pp. 1847-1855 ◽  
Author(s):  
Michelle P. Browne ◽  
Hugo Nolan ◽  
Brendan Twamley ◽  
Georg S. Duesberg ◽  
Paula E. Colavita ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Highly Active

scholarly journals The Influence of Fe Substitution in Lanthanum Calcium Cobalt Oxide on the Oxygen Evolution Reaction in Alkaline Media

2016 ◽  
Vol 163 (9) ◽  
pp. F1124-F1132 ◽  
Author(s):  
Maria A. Abreu-Sepulveda ◽  
Chetan Dhital ◽  
Ashfia Huq ◽  
Ling Li ◽  
Craig A. Bridges ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Calcium Cobalt Oxide ◽  
Fe Substitution

A Low Charge Transfer Resistance CuO Composite for Efficient Oxygen Evolution Reaction in Alkaline Media

2021 ◽  
Vol 21 (4) ◽  
pp. 2613-2620
Author(s):  
Abdul Qayoom Mugheri ◽  
Aneela Tahira ◽  
Umair Aftab ◽  
Muhammad Ishaq Abro ◽  
Adeel Liaquat Bhatti ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
Carbon Material ◽  
Cupric Oxide ◽  
Alkaline Media ◽  
Porous Carbon Material ◽  
Active Centers ◽  
Hydrogen Electrode ◽  
Transfer Resistance

An efficient, simple, environment-friendly and inexpensive cupric oxide (CuO) electrocatalyst for oxygen evolution reaction (OER) is demonstrated. CuO is chemically deposited on the porous carbon material obtained from the dehydration of common sugar. The morphology of CuO on the porous carbon material is plate-like and monoclinic crystalline phase is confirmed by powder X-ray diffraction. The OER activity of CuO nanostructures is investigated in 1 M KOH aqueous solution. To date, the proposed electrocatalyst has the lowest possible potential of 1.49 V versus RHE (reversible hydrogen electrode) to achieve a current density of 20 mA/cm2 among the CuO based electrocatalysts and has Tafel slope of 115 mV dec-1. The electrocatalyst exhibits an excellent long-term stability for 6 hours along with significant durability. The enhanced catalytic active centers of CuO on the carbon material are due to the porous structure of carbon as well as strong coupling between CuO–C. The functionalization of metal oxides or other related nanostructured materials on porous carbon obtained from common sugar provides an opportunity for the development of efficient energy conversion and energy storage systems.

Deeply Reconstructed Hierarchical and Defective NiOOH/FeOOH Nanoboxes with Accelerated Kinetics for Oxygen Evolution Reaction

2021 ◽  
Author(s):  
Ping Yan ◽  
Qian Liu ◽  
Hui Zhang ◽  
Luchun Qiu ◽  
Hao Bin Wu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Metal Phosphides ◽  
Transition Metal Phosphides

Transition metal phosphides (TMPs) have been reported as efficient pre-catalysts for oxygen evolution reaction (OER) in alkaline media. The in-situ generated metal oxyhydroxides on the surface of TMPs serve as...

Enhancing the electrocatalytic activity and stability of Prussian blue analogues by increasing their electroactive sites through the introduction of Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Roger Sanchis-Gual ◽  
Toribio F. Otero ◽  
Marc Coronado Puchau ◽  
Eugenio Coronado
Keyword(s):  
Prussian Blue ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Alkaline Media ◽  
Prussian Blue Analogues ◽  
Earth Abundant

Prussian blue analogues (PBAs) have been proven as excellent earth‐abundant electrocatalysts for the oxygen evolution reaction (OER) in acidic, neutral and alkaline media. Still, further improvements can be achieved by...

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