Amorphous Ni1–xFex Oxyhydroxide Nanosheets with Integrated Bulk and Surface Iron for a High and Stable Oxygen Evolution Reaction

2021 ◽  
Author(s):  
Birhanu Bayissa Gicha ◽  
Lemma Teshome Tufa ◽  
Youngeun Choi ◽  
Jaebeom Lee
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Surface Iron ◽  
Stable Oxygen

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...

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,...

In situ electrochemical formation of core–shell nickel–iron disulfide and oxyhydroxide heterostructured catalysts for a stable oxygen evolution reaction and the associated mechanisms

2017 ◽  
Vol 5 (9) ◽  
pp. 4335-4342 ◽  
Author(s):  
Min Zhou ◽  
Qunhong Weng ◽  
Xiuyun Zhang ◽  
Xi Wang ◽  
Yanming Xue ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Core Shell ◽  
Nickel Iron ◽  
Iron Disulfide ◽  
Catalytic Stability ◽  
Stable Oxygen

A novel Ni–Fe disulfide@oxyhydroxide core–shell heterostructure exhibits excellent electrochemical catalytic stability and activity for the oxygen evolution reaction (OER).

In situ growth of layered double hydroxides on boehmite AlOOH for active and stable oxygen evolution in alkaline media

Nanoscale ◽  
2019 ◽  
Vol 11 (21) ◽  
pp. 10348-10357 ◽  
Author(s):  
Shijie He ◽  
Hua Lin
Keyword(s):  
High Activity ◽  
Oxygen Evolution ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
In Situ Growth ◽  
Stable Oxygen ◽  
Double Hydroxides

The composition with V- or Ni-doped AlOOH nanorods drives FeNi and FeCo layered double hydroxides to obtain both high activity and better stability for the oxygen evolution reaction.

Vertical-crystalline Fe-doped β-Ni oxyhydroxides for highly active and stable oxygen evolution reaction

Matter ◽  
2021 ◽  
Author(s):  
Byeongyoon Kim ◽  
Mrinal Kanti Kabiraz ◽  
Jaewan Lee ◽  
Changhyeok Choi ◽  
Hionsuck Baik ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Active ◽  
Stable Oxygen

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...

Sandwich-like CoP/C nanocomposites as efficient and stable oxygen evolution catalysts

2016 ◽  
Vol 4 (23) ◽  
pp. 9072-9079 ◽  
Author(s):  
Yuanjuan Bai ◽  
Huijuan Zhang ◽  
Yangyang Feng ◽  
Li Fang ◽  
Yu Wang
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Electrolysis ◽  
Stable Oxygen ◽  
Kinetics Of

Nowadays, the sluggish kinetics of the oxygen evolution reaction (OER) has been a bottleneck factor in water electrolysis.

Highly crystallized α-FeOOH for a stable and efficient oxygen evolution reaction

2017 ◽  
Vol 5 (5) ◽  
pp. 2021-2028 ◽  
Author(s):  
Wenjun Luo ◽  
Chaoran Jiang ◽  
Yaomin Li ◽  
Stephen A. Shevlin ◽  
Xiaoyu Han ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Adsorbed Water ◽  
Stable Oxygen

A well-crystallized α-FeOOH (a goethite widespread in nature) shows an efficient and stable oxygen evolution reaction by removing surface chemically adsorbed water.

A facile sequential ion exchange strategy to synthesize CoSe2/FeSe2 double-shelled hollow nanocuboids for the highly active and stable oxygen evolution reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (22) ◽  
pp. 10738-10745 ◽  
Author(s):  
Chunyang Xu ◽  
Qinghao Li ◽  
Junling Shen ◽  
Ze Yuan ◽  
Jiqiang Ning ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Active ◽  
Stable Oxygen ◽  
First Time

A novel multicomponent metal selenide electrocatalyst based on CoSe2/FeSe2 double-shelled hollow nanocuboids (CoSe2/FeSe2 DS-HNCs) with a highly oxidative Co3+ species is reported for the first time.

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