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.

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).

PtNiFe Nanoalloys with Co-existence of Energy-optimized Active surfaces for Synergistic Catalysis of Oxygen Reduction and Evolution

2021 ◽  
Author(s):  
wei yang ◽  
Wenbin Gong ◽  
Yanhong Shi ◽  
Xiaona Wang ◽  
Yulian Wang ◽  
...  
Keyword(s):  
Transition Metals ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Synergistic Catalysis ◽  
Active Surfaces

Platinum nanocatalysts mediated by 3d transition metals show improved activity for oxygen reduction reaction (ORR) but poor activity for oxygen evolution reaction (OER). Herein, we report the preparation of a...

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).

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.

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.

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.

Improving the oxygen evolution reaction using electronic structure modulation of sulfur-retaining nickel-based electrocatalysts

2021 ◽  
Author(s):  
Man Ho Han ◽  
Min-wook Pin ◽  
Jai Hyun Koh ◽  
Jong Hyeok Park ◽  
Jihyun Kim ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metals ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Experimental Studies ◽  
Promising Method ◽  
Catalytic Activities ◽  
Structure Modulation

The sulfurization of transition metals is a promising method for improving their catalytic activities in the oxygen evolution reaction (OER). However, experimental studies regarding the effects of undissolved, remaining S...

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
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