An Amorphous Nickel–Iron‐Based Electrocatalyst with Unusual Local Structures for Ultrafast Oxygen Evolution Reaction

2019 ◽  
Vol 31 (28) ◽  
pp. 1900883 ◽  
Author(s):  
Gao Chen ◽  
Yanping Zhu ◽  
Hao Ming Chen ◽  
Zhiwei Hu ◽  
Sung‐Fu Hung ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Iron ◽  
Local Structures ◽  
Iron Based

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...

Single-atom implanted two-dimensional MOFs as efficient electrocatalysts for the oxygen evolution reaction

2020 ◽  
Vol 7 (23) ◽  
pp. 4661-4668
Author(s):  
Rui-Li Peng ◽  
Jia-Luo Li ◽  
Xiao-Ning Wang ◽  
Yu-Meng Zhao ◽  
Bao Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Single Atom ◽  
Two Dimensional ◽  
Controllable Synthesis ◽  
Synthesis Strategy ◽  
Metal Organic ◽  
Iron Based ◽  
Organic Framework

A facile and controllable synthesis strategy for bimetallic electrocatalysts for the OER from a two-dimensional iron-based metal–organic framework precursor has been reported, in which the Fe/Ni type exhibits the best efficiency and conversion.

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.

scholarly journals Iron-based binary metal-organic framework nanorods as an efficient catalyst for the oxygen evolution reaction

2021 ◽  
Vol 42 (4) ◽  
pp. 637-647
Author(s):  
Chuchu Wu ◽  
Xiaoming Zhang ◽  
Huanqiao Li ◽  
Zhangxun Xia ◽  
Shansheng Yu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Efficient Catalyst ◽  
Binary Metal ◽  
Metal Organic ◽  
Iron Based ◽  
Organic Framework

scholarly journals Iron-Based Perovskites for Catalyzing Oxygen Evolution Reaction

2018 ◽  
Vol 122 (15) ◽  
pp. 8445-8454 ◽  
Author(s):  
Binghong Han ◽  
Alexis Grimaud ◽  
Livia Giordano ◽  
Wesley T. Hong ◽  
Oscar Diaz-Morales ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Iron Based

Mesoporous cobalt‑iron based materials as highly efficient electrocatalysts for oxygen evolution reaction

2020 ◽  
Vol 873 ◽  
pp. 114443 ◽  
Author(s):  
Donggang Guo ◽  
Hongzhi Kang ◽  
Zewei Hao ◽  
Yang Yang ◽  
Pengkun Wei ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
Cobalt Iron ◽  
Iron Based
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