Low-crystallinity mesoporous NiGaFe hydroxide nanosheets on macroporous Ni foam for high-efficiency oxygen evolution electrocatalysis

2021 ◽  
Vol 9 (10) ◽  
pp. 6223-6231
Author(s):  
Shi Feng Zai ◽  
An Qi Dong ◽  
Jian Li ◽  
Zi Wen ◽  
Chun Cheng Yang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Hierarchical Structure ◽  
High Efficiency ◽  
Ni Foam ◽  
Electrodeposition Method ◽  
Low Crystallinity

Ni0.65Ga0.30Fe0.05 hydroxide electrode with a hierarchical structure was fabricated through an electrodeposition method, which shows superior OER electrocatalytic performances, outperforming most of the reported OER catalysts.

In situ confined vertical growth of a 1D-CuCo2S4 nanoarray on Ni foam covered by a 3D-PANI mesh layer to form a self-supporting hierarchical structure for high-efficiency oxygen evolution catalysis

Nanoscale ◽  
2019 ◽  
Vol 11 (25) ◽  
pp. 12326-12336 ◽  
Author(s):  
Wei Sun ◽  
Wei Wei ◽  
Nan Chen ◽  
Linlin Chen ◽  
Yin Xu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Hierarchical Structure ◽  
Electrode Material ◽  
High Efficiency ◽  
Artificial Turf ◽  
Ni Foam ◽  
Vertical Growth ◽  
Position And Orientation ◽  
First Time

Inspired by the patchwork of artificial turf, we defined the growth position and orientation of a CuCo2S4 nanoarray for the first time by electroplating a PANI mesh layer onto a Ni foam to obtain a self-supporting hierarchical electrode material.

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.

One-step synthesis of wire-in-plate nanostructured materials made of CoFe-LDH nanoplates coupled with Co(OH)2 nanowires grown on a Ni foam for a high-efficiency oxygen evolution reaction

2019 ◽  
Vol 55 (29) ◽  
pp. 4218-4221 ◽  
Author(s):  
Lingxi Zhou ◽  
Meichen Guo ◽  
Yao Li ◽  
Qin Gu ◽  
Wenqian Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Nanostructured Materials ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
High Catalytic Activity ◽  
Ni Foam ◽  
One Step

A series of wire-in-plate nanostructured electrocatalysts for OER with high catalytic activity were fabricated.

Three-Dimensional Honeycomb-Like Cu0.81Co2.19O4 Nanosheet Arrays Supported by Ni Foam and Their High Efficiency as Oxygen Evolution Electrodes

2018 ◽  
Vol 10 (45) ◽  
pp. 38663-38668 ◽  
Author(s):  
Woo-Sung Choi ◽  
Myeong Je Jang ◽  
Yoo Sei Park ◽  
Kyu Hwan Lee ◽  
Joo Yul Lee ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
High Efficiency ◽  
Three Dimensional ◽  
Ni Foam ◽  
Nanosheet Arrays

scholarly journals Prompt Electrodeposition of Ni Nanodots on Ni Foam to Construct a High-Performance Water-Splitting Electrode: Efficient, Scalable, and Recyclable

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Hongtao Yu ◽  
Ting Quan ◽  
Shilin Mei ◽  
Zdravko Kochovski ◽  
Wei Huang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
High Performance ◽  
High Efficiency ◽  
Raw Materials ◽  
Low Cost ◽  
Acetonitrile Solution ◽  
Ni Foam ◽  
High Durability ◽  
Binder Free

Abstract In past decades, Ni-based catalytic materials and electrodes have been intensively explored as low-cost hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalysts for water splitting. With increasing demands for Ni worldwide, simplifying the fabrication process, increasing Ni recycling, and reducing waste are tangible sustainability goals. Here, binder-free, heteroatom-free, and recyclable Ni-based bifunctional catalytic electrodes were fabricated via a one-step quick electrodeposition method. Typically, active Ni nanodot (NiND) clusters are electrodeposited on Ni foam (NF) in Ni(NO3)2 acetonitrile solution. After drying in air, NiO/NiND composites are obtained, leading to a binder-free and heteroatom-free NiO/NiNDs@NF catalytic electrode. The electrode shows high efficiency and long-term stability for catalyzing hydrogen and oxygen evolution reactions at low overpotentials (10ηHER = 119 mV and 50ηOER = 360 mV) and can promote water catalysis at 1.70 V@10 mA cm−2. More importantly, the recovery of raw materials (NF and Ni(NO3)2) is quite easy because of the solubility of NiO/NiNDs composites in acid solution for recycling the electrodes. Additionally, a large-sized (S ~ 70 cm2) NiO/NiNDs@NF catalytic electrode with high durability has also been constructed. This method provides a simple and fast technology to construct high-performance, low-cost, and environmentally friendly Ni-based bifunctional electrocatalytic electrodes for water splitting.

Monolithic-structured ternary hydroxides as freestanding bifunctional electrocatalysts for overall water splitting

2016 ◽  
Vol 4 (19) ◽  
pp. 7245-7250 ◽  
Author(s):  
Xiaolin Zhu ◽  
Cheng Tang ◽  
Hao-Fan Wang ◽  
Bo-Quan Li ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
High Efficiency ◽  
Alkaline Media ◽  
Ni Foam ◽  
Overall Water Splitting ◽  
Bifunctional Electrocatalysts

Fully exposed ternary hydroxides electrodeposited on Ni foam (NiCoFe/NF) exhibited superb oxygen evolution and hydrogen evolution reactivity in alkaline media, and this monolithic-structured electrode further enabled a high-efficiency water electrolyzer.

One-step hydrothermal synthesized 3D P–MoO3/FeCo LDH heterostructure electrocatalysts on Ni foam for high-efficiency oxygen evolution electrocatalysis

2021 ◽  
Vol 46 (24) ◽  
pp. 12992-13000
Author(s):  
Chuqi Huang ◽  
Jianhang Nie ◽  
Zhenyang Xu ◽  
Xiaohua Zhang ◽  
Jie Tang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
High Efficiency ◽  
Ni Foam ◽  
One Step
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