N-doped carbon coated NiCo2O4 Nanorods for efficient electrocatalytic oxygen evolution

2021 ◽  
Author(s):  
Muhammad Ahmad ◽  
Baojuan Xi ◽  
Yu Gu ◽  
Shenglin Xiong
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Hydrogen Fuel ◽  
Carbon Coated ◽  
Nico2o4 Nanorods ◽  
Splitting Process

Oxygen evolution reaction (OER) is considered as an imperative step in electrocatalytic water splitting process to obtain clean hydrogen fuel. The scarcity of noble metal impedes the practice of such...

Controllable synthesis of multidimensional carboxylic acid-based NiFe MOFs as efficient electrocatalysts for oxygen evolution

2021 ◽  
Author(s):  
Bao Yu Xia ◽  
Kaihang Yue ◽  
Jianglin Liu ◽  
Chenfeng Xia ◽  
Ke Zhan ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Controllable Synthesis ◽  
High Overpotentials

Oxygen evolution reaction (OER), as an essential half reaction of water splitting that producing green hydrogen, has been subject to high overpotentials and restrictions on the use of noble metal...

Synergistic Effect of Co/CoO Nanoparticles on Imine-based Covalent Organic Framework for Enhanced OER Performance

Nanoscale ◽  
2021 ◽  
Author(s):  
Xiaoqin Ye ◽  
Jinchen Fan ◽  
Yulin Min ◽  
Penghui Shi ◽  
Qunjie Xu
Keyword(s):  
Synergistic Effect ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Covalent Organic Framework ◽  
Coo Nanoparticles ◽  
Organic Framework

The development of non-noble metal electrocatalysts toward oxygen evolution reaction (OER) is the key challenge in advancing electrocatalytic water splitting, which is essential for the commercialization of clean and renewable...

scholarly journals Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process

2020 ◽  
Author(s):  
Mirko Gazzotti ◽  
Andrea Stefani ◽  
Marco Bonechi ◽  
Walter Giurlani ◽  
Massimo Innocenti ◽  
...  
Keyword(s):  
Tartaric Acid ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Bulk Solution ◽  
Potential Range ◽  
Chiral Compound ◽  
Chiral Compounds ◽  
Electrodeposited Nickel ◽  
Splitting Process

Results are presented concerning the influence on the water splitting process of enantiopure tartaric acid present in bulk solution. Stainless steel and electrodeposited nickel are used as working electrode (WE) surface. The latter is obtained by electrodeposition on the two poles of a magnet. The influence and role played by the chiral compound in solution has been assessed by comparing the current values, in cyclic voltammetry (CV) experiments, recorded in the potential range at which oxygen evolution reaction (OER) occurs. In the case of tartaric acid and nickel WE a spin polarization of about 4 % is found. The use of the chiral environment (bulk solution) and ferromagnetic chiral Ni electrode allows for observing the OER at a more favourable potential: about 50 mV (i.e. a cathodic, less positive, shift of the potential at which the oxygen evolution is observed).

CoTe2-NiTe2 heterojunction directly grown on CoNi alloy foam for efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Yu Qi ◽  
Zhi Yang ◽  
Shuai Peng ◽  
Youcong Dong ◽  
Mingkui Wang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Electrochemical Water Splitting

The development of high-efficiency and durable non-noble metal-based oxygen evolution reaction (OER) electrocatalysts is a particularly urgent need for electrochemical water splitting. An effective electrocatalyst can be prepared by tailoring...

scholarly journals Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3988
Author(s):  
Mirko Gazzotti ◽  
Andrea Stefani ◽  
Marco Bonechi ◽  
Walter Giurlani ◽  
Massimo Innocenti ◽  
...  
Keyword(s):  
Tartaric Acid ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Bulk Solution ◽  
Potential Range ◽  
Chiral Compound ◽  
Chiral Compounds ◽  
Electrodeposited Nickel ◽  
Splitting Process

Results are presented concerning the influence on the water splitting process of enantiopure tartaric acid present in bulk solution. Stainless steel and electrodeposited nickel are used as working electrode (WE) surface. The latter is obtained by electrodeposition on the two poles of a magnet. The influence and role played by the chiral compound in solution has been assessed by comparing the current values, in cyclic voltammetry (CV) experiments, recorded in the potential range at which oxygen evolution reaction (OER) occurs. In the case of tartaric acid and nickel WE a spin polarization of about 4% is found. The use of the chiral environment (bulk solution) and ferromagnetic chiral Ni electrode allows for observing the OER at a more favorable potential: About 50 mV (i.e., a cathodic, less positive, shift of the potential at which the oxygen evolution is observed).

Understanding the role of fluorination on the mechanistic nature of the water splitting process catalyzed by cobalt tris-(2-pyridylmethyl) amine complex

2021 ◽  
Author(s):  
Koteswara Rao Gorantla ◽  
Bhabani S. Mallik
Keyword(s):  
Reaction Mechanism ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Cobalt Complexes ◽  
Oxygen Oxygen ◽  
Amine Complex ◽  
Oxygen Bond ◽  
Splitting Process

We report the reaction mechanism of the oxygen evolution reaction catalyzed by penta-coordinated [(CoV(TPA-αF3)(O)]3+ (TPA=tri-(2-pyridylmethyl) amine) and hexa-coordinated [(CoV(TPA-αF3)(O)OH]2+ cobalt complexes for the formation of the oxygen-oxygen bond and role...

Ultrafine CoPS nanoparticles encapsulated in N, P, and S tri-doped porous carbon as an efficient bifunctional water splitting electrocatalyst in both acid and alkaline solutions

2018 ◽  
Vol 6 (22) ◽  
pp. 10433-10440 ◽  
Author(s):  
Yiping Hu ◽  
Feng Li ◽  
Yu Long ◽  
Haidong Yang ◽  
Lili Gao ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Conversion ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
Alkaline Solutions ◽  
Highly Efficient ◽  
Energy Conversion Systems

Searching for the same highly efficient, stable and non-noble metal electrocatalysts for the hydrogen/oxygen evolution reaction (HER/OER) is crucial to renewable-energy conversion systems.

scholarly journals Oxygen evolution reaction activity and underlying mechanism of perovskite electrocatalysts at different pH

2021 ◽  
Author(s):  
Bae-Jung Kim ◽  
Emiliana Fabbri ◽  
Mario Borlaf ◽  
Daniel F. Abbott ◽  
Ivano E. Castelli ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Underlying Mechanism ◽  
Perovskite Oxide ◽  
Anodic Reaction ◽  
Splitting Process

The members of the perovskite oxide family have been vastly explored for their potential as active electrocatalysts for an efficient anodic reaction (i.e. the oxygen evolution reaction, OER) of the water splitting process.

scholarly journals Ni foam electrode solution impregnated with Ni-FeX(OH)Y catalysts for efficient oxygen evolution reaction in alkaline electrolyzers

RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25426-25434
Author(s):  
Dipanjan Sengupta ◽  
Stefania M. S. Privitera ◽  
Rachela Gabriella Milazzo ◽  
Corrado Bongiorno ◽  
Silvia Scalese ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Ni Foam ◽  
Oxygen Evolving ◽  
Splitting Process

Modification of Ni foam electrode by FeCl3·6H2O and HCl, towards superior oxygen-evolving electrocatalyst for water splitting process.

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