Boosting charge transfer of FeOOH/Ni(OH)2 for excellent oxygen evolution reaction via Cr modification

2021 ◽  
Author(s):  
Yan He ◽  
tao yu ◽  
Hui Wen ◽  
Rui Guo
Keyword(s):  
Charge Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media

For electrocatalytic oxygen evolution reaction (OER) in alkaline media, it is urgently needed to optimize the adsorption strength of OH*. Here, a flower-like hybrid of Cr-doped FeOOH/Ni(OH)2 was used as...

Interfacing RuO2 with Pt to induce efficient charge transfer from Pt to RuO2 for highly efficient and stable oxygen evolution under acidic media

2021 ◽  
Author(s):  
Taehyun Kwon ◽  
Heesu Yang ◽  
Minki Jun ◽  
Taekyung Kim ◽  
Jinwhan Joo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Charge ◽  
Stable Oxygen ◽  
The Stability

The oxygen evolution reaction (OER) requires a large overpotential which undermines the stability of electrocatalysts, typically IrOx or RuOx. RuOx is particularly vulnerable to high overpotential in acidic media, due...

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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