Single nickel atom supported on hybridized graphene–boron nitride nanosheet as a highly active bi-functional electrocatalyst for hydrogen and oxygen evolution reactions

Hybridized graphene–boron nitride nanosheet supported single nickel atom was designed as a highly active, stable, and low-cost bi-functional OER/HER electrocatalyst.

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Controllable growth of graphdiyne layered nanosheets for high-performance water oxidation

Materials Chemistry Frontiers ◽

10.1039/d1qm00132a ◽

2021 ◽

Author(s):

Shuya Zhao ◽

Yurui Xue ◽

Zhongqiang Wang ◽

Zhiqiang Zheng ◽

Xiaoyu Luan ◽

...

Keyword(s):

Oxygen Evolution ◽

Oxygen Evolution Reaction ◽

Water Oxidation ◽

High Performance ◽

Low Cost ◽

Highly Active ◽

Controllable Growth

Developing highly active, stable and low-cost electrocatalysts capable of an efficient oxygen evolution reaction (OER) is urgent and challenging.

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Engineering Mesoporous NiO with Enriched Electrophilic Ni3+ and O− toward Efficient Oxygen Evolution

Catalysts ◽

10.3390/catal8080310 ◽

2018 ◽

Vol 8 (8) ◽

pp. 310 ◽

Cited By ~ 9

Author(s):

Xiu Liu ◽

Zhi-Yuan Zhai ◽

Zhou Chen ◽

Li-Zhong Zhang ◽

Xiu-Feng Zhao ◽

...

Keyword(s):

Surface Area ◽

Oxygen Evolution ◽

Low Cost ◽

Large Surface Area ◽

Nucleophilic Attack ◽

Title Reaction ◽

Highly Active ◽

Decomposition Of Water ◽

Uniform Mesopores

Tremendous efforts have been devoted to develop low-cost and highly active electrocatalysts for oxygen evolution reaction (OER). Here, we report the synthesis of mesoporous nickel oxide by the template method and its application in the title reaction. The as-prepared mesoporous NiO possesses a large surface area, uniform mesopores, and rich surface electrophilic Ni3+ and O− species. The overpotential of meso-NiO in alkaline medium is 132 mV at 10 mA cm−1 and 410 mV at 50 mA cm−1, which is much smaller than that of the other types of NiO samples. The improvement in the OER activity can be ascribed to the synergy of the large surface area and uniform mesopores for better mass transfer and high density of Ni3+ and O− species favoring the nucleophilic attack by OH− to form a NiOOH intermediate. The reaction process and the role of electrophilic Ni3+ and O− were discussed in detail. This results are more conducive to the electrochemical decomposition of water to produce hydrogen fuel as a clean and renewable energy.

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Recent Advances on Highly Active Nanostructured NiFe LDH Catalyst for Electrochemical Water Splitting

Journal of Materials Chemistry A ◽

10.1039/d0ta10712c ◽

2020 ◽

Author(s):

Pradnya Bodhankar ◽

Pradip B Sarawade ◽

Ajayan Vinu ◽

Gurwinder Singh ◽

Dattatray Sadashiv Dhawale

Keyword(s):

Water Splitting ◽

Oxygen Evolution ◽

Low Cost ◽

Sustainable Production ◽

Highly Efficient ◽

Highly Active ◽

Recent Advances ◽

Electrochemical Water Splitting

Highly efficient, low-cost electrocatalyst having superior activity and stability are the crucial endeavor for practical electrochemical water splitting that involves hydrogen and oxygen evolution reactions (HER and OER). Sustainable production...

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Unique nanosheet–nanowire structured CoMnFe layered triple hydroxide arrays as self-supporting electrodes for a high-efficiency oxygen evolution reaction

Journal of Materials Chemistry A ◽

10.1039/c9ta01531k ◽

2019 ◽

Vol 7 (21) ◽

pp. 13130-13141 ◽

Cited By ~ 28

Author(s):

Meichen Guo ◽

Lingxi Zhou ◽

Yao Li ◽

Qiaoji Zheng ◽

Fengyu Xie ◽

...

Keyword(s):

Oxygen Evolution ◽

Oxygen Evolution Reaction ◽

High Efficiency ◽

Low Cost ◽

Highly Active

Developing highly active and low-cost electrocatalysts for the oxygen evolution reaction (OER) to meet industrial criteria is vitally essential.

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Positive self-reconstruction in FeNiMo phosphide electrocatalyst for enhanced overall water splitting

Sustainable Energy & Fuels ◽

10.1039/d1se01541a ◽

2021 ◽

Author(s):

Yi Wei ◽

Cheol-Hwan Shin ◽

Gyan Barimah Caleb ◽

Emmanuel Batsa Tetteh ◽

Gisang Park ◽

...

Keyword(s):

Hydrogen Production ◽

Water Splitting ◽

Oxygen Evolution ◽

Low Cost ◽

Grand Challenge ◽

Nickel Iron ◽

Overall Water Splitting ◽

Highly Active ◽

Bifunctional Electrocatalysts

Searching for low-cost and highly active bifunctional electrocatalysts toward hydrogen/oxygen evolution reactions is a grand challenge for water splitting hydrogen production. Herein, we prepare a trimetallic nickel, iron, and molybdenum...

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High-performance electrolytic oxygen evolution with a seamless armor core–shell FeCoNi oxynitride

Nanoscale ◽

10.1039/c8nr10191d ◽

2019 ◽

Vol 11 (15) ◽

pp. 7239-7246 ◽

Cited By ~ 11

Author(s):

Jun Di ◽

Huiyuan Zhu ◽

Jiexiang Xia ◽

Jian Bao ◽

Pengfei Zhang ◽

...

Keyword(s):

Energy Conversion ◽

Oxygen Evolution ◽

Water Oxidation ◽

Oxidation Reaction ◽

High Performance ◽

Low Cost ◽

Core Shell ◽

Highly Active ◽

Energy Conversion And Storage ◽

And Storage

Highly active, low-cost, and durable electrocatalysts for the water oxidation reaction are pivotal in energy conversion and storage schemes.

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Mesoporous Ternary Nitrides of Earth-Abundant Metals as Oxygen Evolution Electrocatalyst

Nano-Micro Letters ◽

10.1007/s40820-020-0412-8 ◽

2020 ◽

Vol 12 (1) ◽

Cited By ~ 7

Author(s):

Ali Saad ◽

Hangjia Shen ◽

Zhixing Cheng ◽

Ramis Arbi ◽

Beibei Guo ◽

...

Keyword(s):

Oxygen Evolution ◽

Low Cost ◽

Three Dimensional ◽

Modern Society ◽

Clean Energy ◽

Superior Performance ◽

High Mass ◽

Iron Nitride ◽

Highly Active ◽

Earth Abundant

AbstractAs sustainable energy becomes a major concern for modern society, renewable and clean energy systems need highly active, stable, and low-cost catalysts for the oxygen evolution reaction (OER). Mesoporous materials offer an attractive route for generating efficient electrocatalysts with high mass transport capabilities. Herein, we report an efficient hard templating pathway to design and synthesize three-dimensional (3-D) mesoporous ternary nickel iron nitride (Ni3FeN). The as-synthesized electrocatalyst shows good OER performance in an alkaline solution with low overpotential (259 mV) and a small Tafel slope (54 mV dec−1), giving superior performance to IrO2 and RuO2 catalysts. The highly active contact area, the hierarchical porosity, and the synergistic effect of bimetal atoms contributed to the improved electrocatalytic performance toward OER. In a practical rechargeable Zn–air battery, mesoporous Ni3FeN is also shown to deliver a lower charging voltage and longer lifetime than RuO2. This work opens up a new promising approach to synthesize active OER electrocatalysts for energy-related devices.

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Improvement of Trisodium Citrate-Modified NiFe-Layered Double Hydroxide Nanosheets with Carbon Black for Oxygen Evolution Reaction

Catalysts ◽

10.3390/catal10040431 ◽

2020 ◽

Vol 10 (4) ◽

pp. 431

Author(s):

Haitong He ◽

Jun Gu ◽

Xiaomeng Liu ◽

Delong Yang ◽

Yong Zhu ◽

...

Keyword(s):

Carbon Black ◽

Oxygen Evolution ◽

Layered Double Hydroxide ◽

Oxygen Evolution Reaction ◽

Low Cost ◽

Cost Effective ◽

Trisodium Citrate ◽

Energy Storage And Conversion ◽

Highly Active ◽

Double Hydroxide

The pursuit of highly active and cost-effective catalysts toward oxygen evolution reaction (OER) is a crucial strategy to resolve the imminent energy crisis. NiFe layered double hydroxide (NiFe LDH) is acknowledged as one of the most promising OER electrocatalysts in alkaline electrolytes. Herein, we report a novel stepwise approach to synthesize NiFe LDHs materials merging with carbon black (CB) via trisodium citrate (TC), modifying toward OER. Benefiting from the inimitable wrapped structure, the decreased size of porous nanosheets and the superconductivity of CB substrate, NiFe LDHs/CB-TC presents excellent catalytic features with a comparative overpotential (236 mV at 10 mA cm−2) and an ultralow Tafel slope (31 mV dec−1), which are almost lower than those of advanced catalysts associated with expensive carbonaceous materials. Therefore, it is expected that such a high-activity and low-cost material can be a promising catalyst employed for the electrochemical energy storage and conversion systems.

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