scholarly journals Enhanced stability and ultrahigh activity of amorphous ripple nanostructured Ni-doped Fe oxyhydroxide electrode toward synergetic electrocatalytic water splitting

RSC Advances ◽  
2020 ◽  
Vol 10 (44) ◽  
pp. 26364-26373
Author(s):  
Selvam Mathi ◽  
Jayaraman Jayabharathi
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Cost Effective ◽  
Renewable Electricity ◽  
Fuels And Chemicals ◽  
Enhanced Stability

The development of high-performance catalysts for oxygen-evolution reaction (OER) is paramount for cost-effective conversion of renewable electricity to fuels and chemicals.

Facile construction of self-supported Fe-doped Ni3S2 nanoparticle arrays for ultralow-overpotential oxygen evolution reaction

Nanoscale ◽  
2020 ◽  
Author(s):  
Ning Xie ◽  
Dong-Dong Ma ◽  
Xintao Wu ◽  
Qi-Long Zhu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Cost Effective ◽  
Nanoparticle Arrays ◽  
Overall Water Splitting ◽  
Construction Of Self ◽  
One Step

Constructing high-performance and cost-effective electrocatalysts for water oxidation, particularly for overall water splitting is extremely needed, whereas still challenging. Herein, based on an economical and facile one-step surface sulfurization strategy,...

Solid-state Synthesis of Single-phase Nickel Monophosphosulfide for Oxygen Evolution Reaction

2021 ◽  
Author(s):  
Miao Wang ◽  
Ali Saad ◽  
Xiaoguang Li ◽  
Tao Peng ◽  
Qitao Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Single Phase ◽  
Cost Effective ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Nonprecious Metal

High-performance and cost-effective nonprecious-metal catalysts are essential for next-generation oxygen evolution reaction (OER). However, the electrocatalysis of OER during water splitting is often carried out by noble metal catalysts, such...

Metal-Organic Framework Derived NiSe2/CeO2 Nanocomposite as a High-Performance Electrocatalyst for Oxygen Evolution Reaction (OER)

2021 ◽  
Author(s):  
Davood Taherinia ◽  
Seyyed Heydar Moravvej ◽  
Mohammad Moazzeni ◽  
Elham Akbarzadeh
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Clean Technologies ◽  
Metal Organic ◽  
Organic Framework

The development of efficient and cost-effective catalysts for the oxygen evolution reaction is highly desirable for applications that are based on sustainable and clean technologies. In this study, we report...

Design of high-performance MoS2 edge supported single-metal atom bifunctional catalysts for overall water splitting via a simple equation

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 20228-20237 ◽  
Author(s):  
Xiaopei Xu ◽  
Haoxiang Xu ◽  
Daojian Cheng
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Metal Atom ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Simple Equation ◽  
Bifunctional Catalysts ◽  
Overall Water Splitting

MoS2 edges exhibit good hydrogen evolution reaction (HER) activity but poor oxygen evolution reaction (OER) activity.

scholarly journals Dynamic oxygen adsorption on single-atomic Ruthenium catalyst with high performance for acidic oxygen evolution reaction

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Linlin Cao ◽  
Qiquan Luo ◽  
Jiajia Chen ◽  
Lan Wang ◽  
Yue Lin ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Theoretical Calculations ◽  
Cost Effective ◽  
Carbon Support ◽  
Oxygen Adsorption ◽  
Single Atom ◽  
Intrinsic Activity ◽  
Acid Media

Abstract Achieving active and stable oxygen evolution reaction (OER) in acid media based on single-atom catalysts is highly promising for cost-effective and sustainable energy supply in proton electrolyte membrane electrolyzers. Here, we report an atomically dispersed Ru1-N4 site anchored on nitrogen-carbon support (Ru-N-C) as an efficient and durable electrocatalyst for acidic OER. The single-atom Ru-N-C catalyst delivers an exceptionally intrinsic activity, reaching a mass activity as high as 3571 A gmetal−1 and turnover frequency of 3348 O2 h−1 with a low overpotential of 267 mV at a current density of 10 mA cm−2. The catalyst shows no evident deactivation or decomposition after 30-hour operation in acidic environment. Operando synchrotron radiation X-ray absorption spectroscopy and infrared spectroscopy identify the dynamic adsorption of single oxygen atom on Ru site under working potentials, and theoretical calculations demonstrate that the O-Ru1-N4 site is responsible for the high OER activity and stability.

Ternary PtVCo dendrites for the hydrogen evolution reaction, oxygen evolution reaction, overall water splitting and rechargeable Zn–air batteries

2018 ◽  
Vol 5 (10) ◽  
pp. 2425-2431 ◽  
Author(s):  
Zhaoqing Ding ◽  
Zhenghua Tang ◽  
Ligui Li ◽  
Kai Wang ◽  
Wen Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Energy Sources ◽  
Overall Water Splitting ◽  
Highly Active ◽  
Air Battery

Designing a highly active, robust and cost-effective electrocatalyst with multiple functionalities toward overall water splitting and rechargeable Zn–air battery applications is crucial and urgent for the development of sustainable energy sources.

Tracking high-valent surface iron species in the oxygen evolution reaction on cobalt iron (oxy)hydroxides

2021 ◽  
Author(s):  
Seunghwa Lee ◽  
Aliki Moysiadou ◽  
You-Chiuan Chu ◽  
Hao Ming Chen ◽  
Xile Hu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Renewable Electricity ◽  
Iron Species ◽  
Iron Oxyhydroxides ◽  
Surface Iron ◽  
Cobalt Iron ◽  
High Valent

The oxygen evolution reaction (OER) is the bottleneck reaction of water splitting, which can be used to generate green hydrogen from renewable electricity. Cobalt iron oxyhydroxides (CoFeOxHy) are among the...

Phosphorus-triggered synergy of phase transformation and chalcogenide vacancy migration in cobalt sulfide for an efficient oxygen evolution reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 3129-3134 ◽  
Author(s):  
Suli Liu ◽  
Chenjing Che ◽  
Haiyan Jing ◽  
Jun Zhao ◽  
Xueqin Mu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Cobalt Sulfide ◽  
Vacancy Migration ◽  
Overall Water Splitting

Featuring surface reorganization and phase transformation simultaneously on cobalt chalcogenide, Co0.37S0.38P0.02 exhibits excellent OER and HER activity and stability. Furthermore, it shows high performance towards overall water splitting.

Nanosized LiNi1−xFexPO4embedded in a mesoporous carbon matrix for high-performance electrochemical water splitting

2015 ◽  
Vol 51 (87) ◽  
pp. 15815-15818 ◽  
Author(s):  
Shaojun Ma ◽  
Qing Zhu ◽  
Zhi Zheng ◽  
Wenlou Wang ◽  
Dongming Chen
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Carbon Matrix ◽  
Highly Effective ◽  
Electrochemical Water Splitting ◽  
First Time ◽  
Electrochemical Oxygen

This work reports for the first time LiNi1−xFexPO4@C nanocomposites as highly effective catalysts for electrochemical oxygen evolution reaction (OER).

Co–Fe Bimetal Phosphate Composite Loaded on Reduced Graphene Oxide for Oxygen Evolution

NANO ◽  
2019 ◽  
Vol 14 (01) ◽  
pp. 1950003 ◽  
Author(s):  
Guoxing Zhu ◽  
Xulan Xie ◽  
Lisong Xiao ◽  
Xiaoyun Li ◽  
Xiaoping Shen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Synergistic Effects ◽  
Water Electrolysis ◽  
Onset Potential ◽  
Reduced Graphene

Development of high-performance nonprecious metal-based catalysts for oxygen evolution reaction (OER) is crucial to improve the efficiency of water electrolysis and photoelectrochemical water splitting for harvesting and storage of solar energy. Herein, Co–Fe phosphates and their composites with reduced graphene oxide (rGO) were prepared by a simple hydrothermal method, which then acted as oxygen evolution reaction catalysts. In 1.0 M KOH aqueous solution, the as-obtained optimal composite, Co–Fe phosphate/rGO, can catalyze oxygen evolution reaction with a very sharp onset potential and a small over-potential of 338[Formula: see text]mV to achieve a current density of 10[Formula: see text]mA[Formula: see text]cm[Formula: see text]. It was found that in these Co–Fe phosphates, the optimal Co:Fe ratio is 0.75:0.25. The excellent electrocatalytic performance of the Co–Fe phosphate/rGO composite would benefit from the synergistic effects between Fe and Co species, as well as rGO substrate providing conductive channels. The formed Co–Fe phosphate/rGO electrocatalysts can be the promising replacement of precious metal-based catalysts for more practical and cost-efficient water splitting.

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