Tracking high-valent surface iron species in the oxygen evolution reaction on cobalt iron (oxy)hydroxides

2021 ◽  
Author(s):  
Seunghwa Lee ◽  
Aliki Moysiadou ◽  
You-Chiuan Chu ◽  
Hao Ming Chen ◽  
Xile Hu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Renewable Electricity ◽  
Iron Species ◽  
Iron Oxyhydroxides ◽  
Surface Iron ◽  
Cobalt Iron ◽  
High Valent

The oxygen evolution reaction (OER) is the bottleneck reaction of water splitting, which can be used to generate green hydrogen from renewable electricity. Cobalt iron oxyhydroxides (CoFeOxHy) are among the...

scholarly journals Enhanced stability and ultrahigh activity of amorphous ripple nanostructured Ni-doped Fe oxyhydroxide electrode toward synergetic electrocatalytic water splitting

RSC Advances ◽  
2020 ◽  
Vol 10 (44) ◽  
pp. 26364-26373
Author(s):  
Selvam Mathi ◽  
Jayaraman Jayabharathi
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Cost Effective ◽  
Renewable Electricity ◽  
Fuels And Chemicals ◽  
Enhanced Stability

The development of high-performance catalysts for oxygen-evolution reaction (OER) is paramount for cost-effective conversion of renewable electricity to fuels and chemicals.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

High-valent Zirconium-doping modified Co3O4 weave-like nanoarray boosts oxygen evolution reaction

2021 ◽  
pp. 161172
Author(s):  
Guijin Yang ◽  
Botao Zhu ◽  
Yujun Fu ◽  
Jing Zhao ◽  
Yanna Lin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Zirconium Doping ◽  
High Valent

High Surface Area NiCoP Nanostructure as Efficient Water Splitting Electrocatalyst for the Oxygen Evolution Reaction

2021 ◽  
pp. 111312
Author(s):  
Sisir Maity ◽  
Dheeraj Kumar Singh ◽  
Divya Bhutani ◽  
Suchitra Prasad ◽  
Umesh V. Waghmare ◽  
...  
Keyword(s):  
Surface Area ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Surface ◽  
High Surface Area

Cathodic Corrosion Activated Fe-based Nanoglass as Highly-Active and -Stable Oxygen Evolution Catalyst for Water Splitting

2021 ◽  
Author(s):  
Kaiyao Wu ◽  
Fei Chu ◽  
Yuying Meng ◽  
Kaveh Edalati ◽  
Qingsheng Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Amorphous Alloys ◽  
Precious Metal ◽  
Active Sites ◽  
Metal Free ◽  
Highly Active ◽  
Stable Oxygen ◽  
Surface Active

Transition metal-based amorphous alloys have attracted increasing attention as precious-metal-free electrocatalysts for oxygen evolution reaction (OER) of water splitting due to their high macro-conductivity and abundant surface active sites. However,...

scholarly journals Stainless steel made to rust: a robust water-splitting catalyst with benchmark characteristics

2015 ◽  
Vol 8 (9) ◽  
pp. 2685-2697 ◽  
Author(s):  
Helmut Schäfer ◽  
Shamaila Sadaf ◽  
Lorenz Walder ◽  
Karsten Kuepper ◽  
Stephan Dinklage ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Surface Oxidation

Stainless steel was upon electro-initiated surface oxidation converted in an oxygen evolution reaction (OER) electrocatalyst with benchmark properties.

Synergistic modulation of the metal-free photocatalysts by composition ratio change and heteroatom doping for overall water splitting

2021 ◽  
Author(s):  
Jianxiong Tian ◽  
Zhaobo Zhou ◽  
Sheng Zhang ◽  
Zhixia Li ◽  
Li Shi ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Carbon Nitride ◽  
Reaction Rate ◽  
Graphitic Carbon Nitride ◽  
Heteroatom Doping ◽  
Metal Free ◽  
Ratio Change ◽  
Synergistic Modulation

The graphitic carbon nitride (g-C3N4) based metal-free photocatalyts have attracted growing attention in recent years, while the efficiency is largely limited by the slow reaction rate of oxygen evolution reaction...

Constructing oxygen vacancy-enriched Fe2O3@NiO heterojunctions for highly efficient electrocatalytic alkaline water splitting

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yan Sang ◽  
Xi Cao ◽  
Gaofei Ding ◽  
Zixuan Guo ◽  
Yingying Xue ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
High Purity ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Low Cost ◽  
Dual Function ◽  
Alkaline Water ◽  
High Purity Hydrogen

Electrolysis of water to produce high-purity hydrogen is a very promising method. The development of green, high-efficiency, long-lasting and low-cost dual function electrocatalysts for oxygen evolution reaction (OER) and hydrogen...

Boosting Oxygen Evolution Activity of NiFe-LDH Enabled by Oxygen Vacancy and Morphological Engineering

2021 ◽  
Author(s):  
ShuXuan Liu ◽  
Huiwen Zhang ◽  
Enlai Hu ◽  
Tuyuan Zhu ◽  
ChunYan Zhou ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Oxidation Process ◽  
Double Hydroxides

The sluggish kinetics and four electron oxidation process of oxygen evolution reaction (OER) limit the application of water splitting. Recently, NiFe-layered double hydroxides (NiFe LDHs) have shown great potential to...

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