A hierarchical CoP@NiCo-LDH nanoarray as an efficient and flexible catalyst electrode for the alkaline oxygen evolution reaction

2021 ◽  
Author(s):  
Wenli Tian ◽  
Jie Zhang ◽  
Hao Feng ◽  
Hao Wen ◽  
Xun Sun ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Overpotential ◽  
Catalyst Electrode

CoP@NiCo-LDH/CC needs a low overpotential of only 271 mV to attain 20 mA cm−2 for the OER.

Enhanced oxygen evolution catalytic activity of NiS2 by coupling with ferrous phosphite and phosphide

2021 ◽  
Vol 5 (6) ◽  
pp. 1801-1808
Author(s):  
Jie Yu ◽  
Tao Zhang ◽  
Changchang Xing ◽  
Xuejiao Li ◽  
Xinyang Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Tafel Slope ◽  
Low Overpotential

NiS2/Fe-P nanospheres were developed as an efficient oxygen evolution reaction electrocatalyst with a low overpotential (218 mV @ 10 mA cm−2 and 306 mV @ 800 mA cm−2) and Tafel slope (47.5 mV dec−1).

CoC2O4·2H2O derived Co3O4 nanorods array: a high-efficiency 1D electrocatalyst for alkaline oxygen evolution reaction

2018 ◽  
Vol 54 (12) ◽  
pp. 1533-1536 ◽  
Author(s):  
Yicheng Wei ◽  
Xiang Ren ◽  
Hongmin Ma ◽  
Xu Sun ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Turnover Frequency ◽  
High Turnover ◽  
Nanorods Array ◽  
Co3o4 Nanorods ◽  
Catalyst Electrode

Self-standing Co3O4 nanorods array on Co foil as a 1D OER catalyst electrode, only needs overpotential of 308 mV to drive 15 mA cm−2 in 1.0 M KOH, with good long-term electrochemical durability and a high turnover frequency.

Zinc-telluride nanospheres as an efficient water oxidation electrocatalyst displaying a low overpotential for oxygen evolution

2019 ◽  
Vol 7 (46) ◽  
pp. 26410-26420 ◽  
Author(s):  
Maira Sadaqat ◽  
Laraib Nisar ◽  
Noor-Ul-Ain Babar ◽  
Fayyaz Hussain ◽  
Muhammad Naeem Ashiq ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Zinc Telluride ◽  
Low Overpotential ◽  
Electrochemical Water Splitting ◽  
Kinetics Of

Electrochemical water splitting is economically unviable due to the sluggish kinetics of the anodically uphill oxygen evolution reaction (OER).

NiFe (sulfur)oxyhydroxide porous nanoclusters/Ni foam composite electrode drives a large-current-density oxygen evolution reaction with an ultra-low overpotential

2019 ◽  
Vol 7 (32) ◽  
pp. 18816-18822 ◽  
Author(s):  
Yanqing Wang ◽  
Yuemeng Li ◽  
Liping Ding ◽  
Zhe Chen ◽  
Aaron Ong ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Composite Electrode ◽  
Ni Foam ◽  
Large Current ◽  
Foam Composite ◽  
Large Current Density ◽  
Low Overpotential

A NiFe (sulfur)oxyhydroxide porous nanoclusters/Ni foam composite electrode was fabricated and can drive a large-current-density oxygen evolution reaction with an ultra-low overpotential.

Nanostructured hybrid NiFeOOH/CNT electrocatalysts for oxygen evolution reaction with low overpotential

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74536-74544 ◽  
Author(s):  
Feng Rong ◽  
Jiao Zhao ◽  
Qihua Yang ◽  
Can Li
Keyword(s):  
Transition Metals ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Overpotential

The OER activity of nanostructured Ni-based LDH can be improved by doping with transition metals, which can be further enhanced by hybridizing with CNT.

Interface engineering of NiV-LDH@FeOOH heterostructures as high-performance electrocatalysts for oxygen evolution reaction in alkaline conditions

2020 ◽  
Vol 56 (65) ◽  
pp. 9360-9363 ◽  
Author(s):  
Weiwei Bao ◽  
Lei Xiao ◽  
Junjun Zhang ◽  
Zhifeng Deng ◽  
Chunming Yang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Interface Engineering ◽  
Current Output ◽  
Alkaline Conditions ◽  
Low Overpotential

The NiV-LDH@FeOOH heterostructures exhibit an extremely low overpotential of ∼297 mV at 100 mA cm−2 current output, and excellent long-term durability.

scholarly journals Controllable Synthesis of Graphene-Encapsulated NiFe Nanofiber for Oxygen Evolution Reaction Application

2021 ◽  
Vol 5 (12) ◽  
pp. 314
Author(s):  
Mengyang Li ◽  
Jiayi Rong ◽  
Ning Guo ◽  
Susu Chen ◽  
Meiqi Gao ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Alkaline Electrolyte ◽  
Controllable Synthesis ◽  
Low Overpotential ◽  
Alloy Catalysts ◽  
Nobel Metals ◽  
Excellent Stability

Carbon-Encapsulated NiFe Nanofiber NixFey@C-CNFs have been demonstrated to be promising candidates to replace conventional nobel metals-based catalysts for oxygen evolution reaction. Here, we developed a facile method of electrospinning and high temperature carbonization to synthesize NixFey@C-CNFs catalysts. It is proved that Ni3Fe7@C-CNFs exhibited low overpotential (245 mV) and excellent stability in alkaline electrolyte for OER. This work provides a good platform for the synthesis and design of graphene-encapsulated alloy catalysts.

Low Overpotential and Stable Electrocatalytic Oxygen Evolution Reaction Utilizing Doped Perovskite Oxide, La0.7Sr0.3MnO3, Modified by Cobalt Phosphate

2020 ◽  
Vol 3 (2) ◽  
pp. 1279-1285 ◽  
Author(s):  
Sourav Bhowmick ◽  
Ankit Dhankhar ◽  
Tushar Kanta Sahu ◽  
Rohan Jena ◽  
Devipriya Gogoi ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Perovskite Oxide ◽  
Low Overpotential ◽  
Cobalt Phosphate

Hierarchical micro/nanostructured C doped Co/Co3O4 hollow spheres derived from PS@Co(OH)2 for the oxygen evolution reaction

2017 ◽  
Vol 5 (22) ◽  
pp. 11163-11170 ◽  
Author(s):  
Lifeng Hang ◽  
Yiqiang Sun ◽  
Dandan Men ◽  
Shengwen Liu ◽  
Qian Zhao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Hollow Spheres ◽  
Hollow Nanoparticles ◽  
Tafel Slope ◽  
Low Overpotential

C-Co/Co3O4 hollow nanoparticles with a low overpotential and Tafel slope.

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