Contribution of carbon support in cost-effective metal oxide/carbon composite catalysts for the alkaline oxygen evolution reaction

2019 ◽  
Vol 127 ◽  
pp. 5-9 ◽  
Author(s):  
Weiwei Cai ◽  
Xinlei Zhang ◽  
Jiawei Shi ◽  
Jing Li ◽  
Zhao Liu ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Carbon Support ◽  
Carbon Composite ◽  
Composite Catalysts

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.

Ion-biosorption induced core–shell Fe2P@carbon nanoparticles decorated on N, P co-doped carbon materials for the oxygen evolution reaction

2021 ◽  
Author(s):  
Min Jiang ◽  
Wei Fan ◽  
Anquan Zhu ◽  
Pengfei Tan ◽  
Jianping Xie ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Carbon Nanoparticles ◽  
Carbon Materials ◽  
Cost Effective ◽  
Core Shell ◽  
Co Doped

This work employs bacteria as precursors and induces a cost-effective biosorption strategy to obtain Fe2P@carbon nanoparticles decorated on N and P co-doped carbon (Fe2P@CNPs/NPC) materials.

Graphene-Induced Growth of Co3O4 Nanoplates with Modulable Oxygen Vacancies for Improved OER Properties

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xinheng Li ◽  
Lei Qi ◽  
Mei Wang
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Hydrothermal Treatment ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
Transition Metal Oxide ◽  
Oxide Hydroxide

Transition metal oxide/ hydroxide is intensively studied for oxygen evolution reaction (OER). Herein, graphene-induced growth of Co3O4 nanoplates with modulable oxygen vacancies via hydrothermal treatment is reported. With the increase...

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...

Cost‐effective and Efficient Catalyst of Bimetallic Nickel Iron Selenide toward Oxygen Evolution Reaction

ChemCatChem ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 4416-4421
Author(s):  
Pengkun Wei ◽  
Zewei Hao ◽  
Hongzhi Kang ◽  
Yang ◽  
Donggang Guo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Efficient Catalyst ◽  
Nickel Iron ◽  
Iron Selenide

MoO2–CoO coupled with a macroporous carbon hybrid electrocatalyst for highly efficient oxygen evolution

Nanoscale ◽  
2015 ◽  
Vol 7 (40) ◽  
pp. 16704-16714 ◽  
Author(s):  
B. B. Li ◽  
Y. Q. Liang ◽  
X. J. Yang ◽  
Z. D. Cui ◽  
S. Z. Qiao ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cost Effective ◽  
Highly Efficient ◽  
Macroporous Carbon

Cost-effective electrocatalysts for oxygen evolution reaction are attractive for energy conversion processes.

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.

scholarly journals Iron-Nickel Oxyhydroxide Catalyst from Watts Bath for the Oxygen Evolution Reaction in Water Electrolysis

2020 ◽  
Author(s):  
Dario Delgado ◽  
Jan Bucher
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Fossil Fuels ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Catalyst Characterization ◽  
Iron Nickel ◽  
Nickel Oxyhydroxide

A hydrogen economy is necessary to meet the social demands for less consumption of fossil fuels and it has several barriers that need to be addressed if this technology is to become cost effective. The oxygen evolution reaction (OER) is one of these barriers and catalysts based on nickel oxyhydroxide (NiOx) are believed to be promising for alkaline OER. We report results of iron doping for NiOx, we synthesized by electrodeposition, combinations of iron in Ni Watts solution to develop Fe- NiOx catalysts. The best sample has an overpotential of 254 mV at 10 mA cm-2 , this result is competitive to the best results found for alkaline OER. Our methodology consists of: linear and cyclic voltammetry, galvanostatic stability and electrochemical impedance spectroscopy as electrochemical techniques. In addition, physical catalyst characterization techniques include: scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, Raman spectroscopy and surface elemental analysis by wet chemistry.<br>

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