Electrodeposition of Ni3Se2/MoSex as a bifunctional electrocatalyst towards highly-efficient overall water splitting

Nanoscale ◽  
2020 ◽  
Vol 12 (45) ◽  
pp. 23125-23133
Author(s):  
Yifan Tian ◽  
Xinying Xue ◽  
Yu Gu ◽  
Zhaoxi Yang ◽  
Guo Hong ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Water Splitting ◽  
Significant Role ◽  
High Efficiency ◽  
Low Cost ◽  
Hydrogen Energy ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Splitting Water

Electrochemically splitting water into hydrogen and oxygen plays a significant role in the commercialization of hydrogen energy as well as fuel cells, but it remains a challenge to design and fabricate low-cost and high-efficiency electrocatalysts.

Ultra-thin NiFeSe nanosheets as a highly efficient bifunctional electrocatalyst for overall water splitting

2020 ◽  
Vol 4 (2) ◽  
pp. 582-588 ◽  
Author(s):  
Yu-Yang Sun ◽  
Mei-Yan Jiang ◽  
Lian-Kui Wu ◽  
Guang-Ya Hou ◽  
Yi-Ping Tang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Low Cost ◽  
Good Stability ◽  
Excellent Performance ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting

Developing a bifunctional electrocatalyst with a facile method, low cost, excellent performance and good stability for overall water splitting is essential for the wide application of hydrogen production.

Binder free construction of hollow hierarchical Mn-Co-P nanoarrays on nickel foam as an efficient bifunctional electrocatalyst for overall water splitting

2022 ◽  
Author(s):  
Fan Wang ◽  
Xingzhong Guo ◽  
Fan He ◽  
Yang Hou ◽  
Fu Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
Structural Design ◽  
High Efficiency ◽  
Nickel Foam ◽  
Low Cost ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Free Construction ◽  
Binder Free

Constructing bifunctional electrocatalysts with high-efficiency, low-cost and excellent durability is of great significance for overall water splitting. Structural design of non-noble metal electrocatalysts is essential for tuning their electrocatalytic properties....

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.

Highly Efficient Bifunctional Electrocatalyst (ORR/OER) Derived from GO Functionalized with Carbonyl, Hydroxyl and Epoxy Groups for Rechargeable Zinc-Air Batteries

2021 ◽  
Author(s):  
Lei Gu ◽  
Xuan-Long Sun ◽  
Jiao Zhao ◽  
Bing-Quan Gong ◽  
Zheng-Lv Bao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Activity ◽  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Air Battery ◽  
Epoxy Groups ◽  
Zinc Air Batteries

Electrocatalysts play an important role in fuel cells, metal-air battery and water-splitting devices. The development of low cost, high activity and high performance bifunctional electrocatalysts for ORR and OER is...

scholarly journals Graphene/MoS2/FeCoNi(OH)x and Graphene/MoS2/FeCoNiPx multilayer-stacked vertical nanosheets on carbon fibers for highly efficient overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xixi Ji ◽  
Yanhong Lin ◽  
Jie Zeng ◽  
Zhonghua Ren ◽  
Zijia Lin ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Fibers ◽  
Graphene Nanosheets ◽  
Water Electrolysis ◽  
Hybrid Structure ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Stable Oxygen ◽  
Excellent Stability

AbstractDevelopment of excellent and cheap electrocatalysts for water electrolysis is of great significance for application of hydrogen energy. Here, we show a highly efficient and stable oxygen evolution reaction (OER) catalyst with multilayer-stacked hybrid structure, in which vertical graphene nanosheets (VGSs), MoS2 nanosheets, and layered FeCoNi hydroxides (FeCoNi(OH)x) are successively grown on carbon fibers (CF/VGSs/MoS2/FeCoNi(OH)x). The catalyst exhibits excellent OER performance with a low overpotential of 225 and 241 mV to attain 500 and 1000 mA cm−2 and small Tafel slope of 29.2 mV dec−1. Theoretical calculation indicates that compositing of FeCoNi(OH)x with MoS2 could generate favorable electronic structure and decrease the OER overpotential, promoting the electrocatalytic activity. An alkaline water electrolyzer is established using CF/VGSs/MoS2/FeCoNi(OH)x anode for overall water splitting, which generates a current density of 100 mA cm−2 at 1.59 V with excellent stability over 100 h. Our highly efficient catalysts have great prospect for water electrolysis.

scholarly journals Photocatalytic Overall Water Splitting by SrTiO3 with Surface Oxygen Vacancies

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2572
Author(s):  
Yanfei Fan ◽  
Yan Liu ◽  
Hongyu Cui ◽  
Wen Wang ◽  
Qiaoyan Shang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Low Cost ◽  
Energy Levels ◽  
Light Response ◽  
Hydrogen Energy ◽  
Surface Oxygen ◽  
Carbon Reduction ◽  
Overall Water Splitting

Strontium Titanate has a typical perovskite structure with advantages of low cost and photochemical stability. However, the wide bandgap and rapid recombination of electrons and holes limited its application in photocatalysis. In this work, a SrTiO3 material with surface oxygen vacancies was synthesized via carbon reduction under a high temperature. It was successfully applied for photocatalytic overall water splitting to produce clean hydrogen energy under visible light irradiation without any sacrificial reagent for the first time. The photocatalytic overall water splitting ability of the as-prepared SrTiO3-C950 is attributed to the surface oxygen vacancies that can make suitable energy levels for visible light response, improving the separation and transfer efficiency of photogenerated carriers.

Carbon-encapsulated NiFe nanoparticles as a bifunctional electrocatalyst for high-efficiency overall water splitting

2018 ◽  
Vol 366 ◽  
pp. 266-274 ◽  
Author(s):  
Sung-Woo Park ◽  
Inha Kim ◽  
Seung-Ik Oh ◽  
Jae-Chan Kim ◽  
Dong-Wan Kim
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting

A metal-vacancy-solid-solution NiAlP nanowall array bifunctional electrocatalyst for exceptional all-pH overall water splitting

2018 ◽  
Vol 6 (20) ◽  
pp. 9420-9427 ◽  
Author(s):  
Weiren Cheng ◽  
Hui Zhang ◽  
Xu Zhao ◽  
Hui Su ◽  
Fumin Tang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Water Splitting ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Metal Vacancy

We design a 3D metal-vacancy-solid-solution NiAlδP nanowall array bifunctional electrocatalyst, which is highly efficient in pH-universal overall water splitting.

A multi-interfacial FeOOH@NiCo2O4 heterojunction as a highly efficient bifunctional electrocatalyst for overall water splitting

Nanoscale ◽  
2020 ◽  
Vol 12 (37) ◽  
pp. 19404-19412
Author(s):  
Xi Cao ◽  
Yan Sang ◽  
Lvxuan Wang ◽  
Gaofei Ding ◽  
Runhan Yu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Water Splitting ◽  
Dual Function ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Overall Water Splitting

Multi-interfacial FeOOH@NiCo2O4 hybrid nanoflowers are successfully prepared by a two-step hydrothermal method. The as-obtained sample can be used as an efficient and stable dual-function electrocatalyst for overall water splitting.

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