NixFeyN@C microsheet arrays on Ni foam as an efficient and durable electrocatalyst for electrolytic splitting of alkaline seawater

2021 ◽  
Author(s):  
Boran Wang ◽  
Mengjie Lu ◽  
Duo Chen ◽  
Qi Zhang ◽  
Wenwen Wang ◽  
...  
Keyword(s):  
Iron Nitride ◽  
Ni Foam ◽  
Nickel Iron ◽  
Porous Architecture

A self-supported nickel-iron nitride microsheet arrays coated with carbon is grown on commercial Ni foam (NixFeyN@C/NF) and used as electrocatalyst for splitting of seawater. The porous architecture and superhydrophilic/superaerophobic surface...

Ternary nickel–iron sulfide microflowers as a robust electrocatalyst for bifunctional water splitting

2017 ◽  
Vol 5 (30) ◽  
pp. 15838-15844 ◽  
Author(s):  
Jiahao Yu ◽  
Gongzhen Cheng ◽  
Wei Luo
Keyword(s):  
Porous Structure ◽  
Water Splitting ◽  
Iron Sulfide ◽  
Ni Foam ◽  
Step Method ◽  
Hierarchically Porous ◽  
Nickel Iron ◽  
Hierarchically Porous Structure

3D ternary nickel iron sulfide microflowers with a hierarchically porous structure have been directly grown on Ni foam via a convenient two-step method for efficient bifunctional water splitting.

Oxygen-Doped Nickel Iron Phosphide Nanocube Arrays Grown on Ni Foam for Oxygen Evolution Electrocatalysis

Small ◽  
2018 ◽  
Vol 14 (42) ◽  
pp. 1802204 ◽  
Author(s):  
Wenguang Xi ◽  
Gang Yan ◽  
Zhongling Lang ◽  
Yuanyuan Ma ◽  
Huaqiao Tan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Ni Foam ◽  
Iron Phosphide ◽  
Nickel Iron

scholarly journals Construction of Hierarchical Porous Architecture on Ni Foam for Efficient Oxygen Evolution Reaction Electrode

2021 ◽  
Vol 8 ◽  
Author(s):  
Guang-Hong Ao ◽  
Pei-Zhi Zhao ◽  
Zhi-Gang Peng ◽  
Shuo Wang ◽  
Ying-Shuang Guo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Foam ◽  
Reduction Process ◽  
Operating Conditions ◽  
Energy Storage And Conversion ◽  
High Porosity ◽  
Ni Foam ◽  
Porous Architecture ◽  
Hierarchical Porous

Nickel foam (NF) with a three-dimensional porous structure plays an important role in a wide variety of applications such as energy storage and conversion, catalysis, and sensor due to its high porosity, low density, and excellent conductivity. However, the main drawback of NF is that its ligaments are very smooth, and thus the surface area is relatively low. In this work, we propose a novel strategy, oxidization and reduction process, in situ to construct micron/nano pores on the ligaments of commercial NF to fabricate a typical hierarchical porous architecture. This process is simple and green, avoiding the use of sacrificial materials. Furthermore, MnO2 is coated on the micron/nano-porous Ni foam (MPNF) to construct an oxygen evolution reaction (OER) electrode through pulse electrodeposition. The designed MPNF-MnO2 electrode presents enhanced OER electrocatalysis activity with a low overpotential of 363.5 mV at the current density of 10 mA cm−2 in an alkaline solution, which is 66.4 mV lower than that of the NF-MnO2 electrode in the same operating conditions. Furthermore, the porous and wrinkled structures of the MPNF also improve the mechanical integrity of the electrode, resulting in super-long stability.

Highly Stable Three-Dimensional Porous Nickel-Iron Nitride Nanosheets for Full Water Splitting at High Current Densities

2017 ◽  
Vol 23 (42) ◽  
pp. 10187-10194 ◽  
Author(s):  
Feng Yan ◽  
Yue Wang ◽  
Kaiyue Li ◽  
Chunling Zhu ◽  
Peng Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Three Dimensional ◽  
Iron Nitride ◽  
High Current ◽  
Porous Nickel ◽  
Nickel Iron ◽  
Current Densities

Electro-synthesis of 3D porous hierarchical Ni–Fe phosphate film/Ni foam as a high-efficiency bifunctional electrocatalyst for overall water splitting

2016 ◽  
Vol 4 (36) ◽  
pp. 13866-13873 ◽  
Author(s):  
Junheng Xing ◽  
Hui Li ◽  
Mark Ming-Cheng Cheng ◽  
Scott M. Geyer ◽  
K. Y. Simon Ng
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
High Efficiency ◽  
Ni Foam ◽  
Iron Phosphates ◽  
Bifunctional Electrocatalyst ◽  
Nickel Iron ◽  
Electrodeposition Method ◽  
Highly Efficient ◽  
Overall Water Splitting

A highly efficient bifunctional electrocatalyst of nickel–iron phosphates for hydrogen and oxygen evolution reactions (HER and OER) was designed and preparedviaa simple electrodeposition method.

Nanoscale nickel–iron nitride-derived efficient electrochemical oxygen evolution catalysts

2020 ◽  
Vol 10 (13) ◽  
pp. 4458-4466
Author(s):  
Jianmin Wang ◽  
Feng Cao ◽  
Chen Shen ◽  
Guoqing Li ◽  
Xin Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Chemical Etching ◽  
Iron Nitride ◽  
Nickel Iron ◽  
Nitridation Process ◽  
Electrochemical Oxygen

Ni3FeN/Ni heterostructures are prepared via chemical etching followed by a nitridation process, and the in situ generated NiFeOOH/Ni3FeN/Ni exhibits outstanding OER activity.

Metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

2021 ◽  
Author(s):  
Ruopeng Li ◽  
Yaqiang Li ◽  
Peixia Yang ◽  
Penghui Ren ◽  
Dan Wang ◽  
...  
Keyword(s):  
Active Sites ◽  
High Efficiency ◽  
Low Voltage ◽  
Low Cost ◽  
Intrinsic Activity ◽  
Iron Nitride ◽  
Electron Mass ◽  
Nickel Iron ◽  
Solar Powered ◽  
Seawater Electrolysis

Abstract High-efficiency alkaline seawater electrolysis is a promising strategy to promote the sustainability of wide-ranging hydrogen (H2) production, and the global goal of carbon neutrality. Searching for an ideal candidate with low cost and high electrocatalytic performance for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is a major objective. Herein, we report delicate, heterostuctured NiTe-NiCoN and NiTe-NiFeN electrocatalysts constructed of nickel cobalt nitride and nickel iron nitride nanosheets uniformly anchored on NiTe nanorod arrays, respectively, which ensure outstanding HER and OER activity along with ultra-long-term stability. Impressively, the NiTe-NiCoN || NiTe-NiFeN couples in alkaline seawater solution delivered 500 mA cm−2 at a record low voltage of 1.84 V, and realized an industry-level performance via a solar-powered system and a wind-power system. Further comprehensive analysis has revealed that interface engineering strategy not only ensures that the surficial nitride exposes abundant active sites, but also induces electron modulation that optimizes the binding strength of absorption/desorption for the reaction intermediates to enhanced the the intrinsic activity, as well as facilitate faster electron-mass transfer. Notably, a high electric field intensity generated by the unique nanosheet-nanorod structure induces a local “hydroxide enrichment” environment that effectively promotes the OER kinetics, while inhibits the side effects of chlorine. This work shed lights on these novel heterostructured electrocatalysts with strong synergy, while demonstrating the key role of the unique nanostructures in high-efficiency seawater electrolysis.

Hierarchically mesoporous nickel-iron nitride as a cost-efficient and highly durable electrocatalyst for Zn-air battery

Nano Energy ◽  
2017 ◽  
Vol 39 ◽  
pp. 77-85 ◽  
Author(s):  
Gengtao Fu ◽  
Zhiming Cui ◽  
Yifan Chen ◽  
Lin Xu ◽  
Yawen Tang ◽  
...  
Keyword(s):  
Iron Nitride ◽  
Nickel Iron ◽  
Air Battery ◽  
Cost Efficient
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