scholarly journals Oxygen Isotope Labeling Experiments Reveal Different Reaction Sites for the Oxygen Evolution Reaction on Nickel and Nickel Iron Oxides

2019 ◽  
Vol 131 (30) ◽  
pp. 10401-10405 ◽  
Author(s):  
Seunghwa Lee ◽  
Karla Banjac ◽  
Magalí Lingenfelder ◽  
Xile Hu
Keyword(s):  
Oxygen Isotope ◽  
Iron Oxides ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Isotope Labeling ◽  
Nickel Iron ◽  
Isotope Labeling Experiments

Amorphous nickel-iron oxides/carbon nanohybrids for an efficient and durable oxygen evolution reaction

Nano Research ◽  
2017 ◽  
Vol 10 (11) ◽  
pp. 3629-3637 ◽  
Author(s):  
Bo Li ◽  
Shuangming Chen ◽  
Jie Tian ◽  
Ming Gong ◽  
Hangxun Xu ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Iron

scholarly journals Postsynthetic treatment of nickel–iron layered double hydroxides for the optimum catalysis of the oxygen evolution reaction

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Daire Tyndall ◽  
Sonia Jaskaniec ◽  
Brian Shortall ◽  
Ahin Roy ◽  
Lee Gannon ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Size Control ◽  
Operating Conditions ◽  
Nickel Iron ◽  
Treatment Techniques ◽  
Site Density ◽  
Synthetic Approaches ◽  
Double Hydroxide ◽  
Double Hydroxides

AbstractNickel–iron-layered double hydroxide (NiFe LDH) platelets with high morphological regularity and submicrometre lateral dimensions were synthesized using a homogeneous precipitation technique for highly efficient catalysis of the oxygen evolution reaction (OER). Considering edge sites are the point of activity, efforts were made to control platelet size within the synthesized dispersions. The goal is to controllably isolate and characterize size-reduced NiFe LDH particles. Synthetic approaches for size control of NiFe LDH platelets have not been transferable based on published work with other LDH materials and for that reason, we instead use postsynthetic treatment techniques to improve edge-site density. In the end, size-reduced NiFe LDH/single-wall carbon nanotube (SWCNT) composites allowed to further reduce the OER overpotential to 237 ± 7 mV (<L> = 0.16 ± 0.01 μm, 20 wt% SWCNT), which is one of the best values reported to date. This approach as well improved the long-term activity of the catalyst in operating conditions.

Insight into sulfur and iron effect of binary nickel-iron sulfide on oxygen evolution reaction

Nano Research ◽  
2021 ◽  
Author(s):  
Qikang Wu ◽  
Songrui Wang ◽  
Jiahui Guo ◽  
Xueqing Feng ◽  
Han Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Iron Sulfide ◽  
Nickel Iron ◽  
Insight Into

Local structural changes in polyamorphous (Ni,Fe)Ox electrocatalysts suggest a dual-site oxygen evolution reaction mechanism

2021 ◽  
Author(s):  
Martin Schon ◽  
Oliver Calderon ◽  
Nick Randell ◽  
Santiago Jimenez Villegas ◽  
Katelynn M. Daly ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Structural Changes ◽  
Mixed Metal Oxides ◽  
Reaction Conditions ◽  
Nickel Iron ◽  
Alkaline Reaction ◽  
Dual Site ◽  
Economical Alternative

Amorphous nickel-iron mixed metal oxides have been shown to be extremely efficient oxygen evolution reaction (OER) electrocatalysts with good stability in alkaline reaction conditions. Thus, they offer an economical alternative...

Cost‐effective and Efficient Catalyst of Bimetallic Nickel Iron Selenide toward Oxygen Evolution Reaction

ChemCatChem ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 4416-4421
Author(s):  
Pengkun Wei ◽  
Zewei Hao ◽  
Hongzhi Kang ◽  
Yang ◽  
Donggang Guo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Efficient Catalyst ◽  
Nickel Iron ◽  
Iron Selenide

Tuning the oxygen evolution reaction on a nickel–iron alloy via active straining

Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 426-430 ◽  
Author(s):  
Anqi Wang ◽  
Zhonglong Zhao ◽  
Di Hu ◽  
Junfeng Niu ◽  
Man Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Oxygen Evolution ◽  
Active Control ◽  
Oxygen Evolution Reaction ◽  
Iron Alloy ◽  
Nickel Iron ◽  
Nickel Iron Alloy

We report that one can gain active control of the electrocatalytic oxygen evolution reaction (OER) on Ni3Fe thin films via externally applied strains.

In situ confined synthesis of molybdenum oxide decorated nickel–iron alloy nanosheets from MoO42− intercalated layered double hydroxides for the oxygen evolution reaction

2017 ◽  
Vol 5 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Chao Xie ◽  
Yanyong Wang ◽  
Kui Hu ◽  
Li Tao ◽  
Xiaobing Huang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Molybdenum Oxide ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Iron Alloy ◽  
Nickel Iron ◽  
Nickel Iron Alloy ◽  
Double Hydroxides

This work reports molybdenum oxide decorated NiFe alloy nanosheets with high OER activity by reducing MoO42− intercalated nickel–iron layered double hydroxides (LDHs).

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).

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