Graphdiyne in-situ thermal reduction enabled ultra-small quasi-core/shell Ru-RuO2 heterostructures for efficient acidic water oxidation

2D Materials ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 044011
Author(s):  
Xiaojie Chen ◽  
Xinliang Fu ◽  
Shifu Zhang ◽  
Mei Wang ◽  
Mingjian Yuan
Keyword(s):  
Water Oxidation ◽  
Thermal Reduction ◽  
Core Shell ◽  
Acidic Water

In situ surface derivation of an Fe–Co–Bi layer on an Fe-doped Co3O4 nanoarray for efficient water oxidation electrocatalysis under near-neutral conditions

2017 ◽  
Vol 5 (14) ◽  
pp. 6388-6392 ◽  
Author(s):  
Guilei Zhu ◽  
Ruixiang Ge ◽  
Fengli Qu ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Core Shell ◽  
Neutral Conditions ◽  
Catalyst Electrode

A core–shell Fe–Co3O4@Fe–Co–Bi nanoarray (Fe–Co3O4@Fe–Co–Bi/CC) acts as a superior catalyst electrode for water oxidation, with the need of an overpotential of 420 mV to drive 10 mA cm−2 in 0.1 M K-Bi.

In-situ reconstructed Ru atom array on α-MnO2 with enhanced performance for acidic water oxidation

2021 ◽  
Vol 4 (12) ◽  
pp. 1012-1023
Author(s):  
Chao Lin ◽  
Ji-Li Li ◽  
Xiaopeng Li ◽  
Shuai Yang ◽  
Wei Luo ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Acidic Water

In situ growth of α-Fe2O3@Co3O4 core–shell wormlike nanoarrays for a highly efficient photoelectrochemical water oxidation reaction

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 1111-1122 ◽  
Author(s):  
Chunmei Li ◽  
Zhihui Chen ◽  
Weiyong Yuan ◽  
Qing-Hua Xu ◽  
Chang Ming Li
Keyword(s):  
Water Oxidation ◽  
Oxidation Reaction ◽  
Core Shell ◽  
In Situ Growth ◽  
Highly Efficient ◽  
Oxidation Performance ◽  
Photoelectrochemical Water Oxidation

α-Fe2O3@Co3O4 core–shell wormlike nanoarrays were fabricated via in situ growth of Co3O4 on wormlike α-Fe2O3, showing superior photoelectrochemical water oxidation performance.

Cu2O@Fe–Ni3S2 nanoflower in situ grown on copper foam at room temperature as an excellent oxygen evolution electrocatalyst

2020 ◽  
Vol 56 (82) ◽  
pp. 12339-12342
Author(s):  
Li Li Wu ◽  
Yu Xian Yang ◽  
Xiao Hui Chen ◽  
Juan Luo ◽  
Hong Chuan Fu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Oxidation ◽  
Room Temperature ◽  
Core Shell ◽  
Copper Foam

A 3D/2D core–shell Cu2O@Fe–Ni3S2 nanoflower is prepared at room temperature through an etching precipitation strategy for enhanced electrochemical water oxidation.

scholarly journals Direct Observation of Ni–Mo Catalyst Formation via Thermal Reduction of Nickel Molybdate Nanorods

2020 ◽  
Author(s):  
Rituja Patil ◽  
Stephen House ◽  
Aayush Mantri ◽  
Judith C. Yang ◽  
James McKone
Keyword(s):  
Hydrogen Evolution ◽  
Thermal Reduction ◽  
Core Shell ◽  
Chemical Transformations ◽  
Nickel Molybdate ◽  
Mo Catalyst ◽  
Transmission Electron ◽  
Catalyst Formation ◽  
Exchange Membrane

Ni-Mo composites are known to catalyze several industrial relevant reactions involving hydrogen. Our interest is in Ni-Mo composites for hydrogen evolution reaction in alkaline anion exchange membrane water electrolyzers. We recently found that Ni-Mo composites comprise of core-shell structure where the core is metallic, rich in Ni while the shell is Mo-rich oxide. The transformation of the oxide intermediate into a core-shell architecture is studied in this work using <i>in situ</i> transmission electron microscopy. We reduced nickel molybdate nanorods in environmental transmission electron microscope and observed its transformation into the Ni-Mo catalyst composite. We further correlated these chemical transformations with the observed hydrogen evolution activity.

scholarly journals Direct Observation of Ni–Mo Catalyst Formation via Thermal Reduction of Nickel Molybdate Nanorods

2020 ◽  
Author(s):  
Rituja Patil ◽  
Stephen House ◽  
Aayush Mantri ◽  
Judith C. Yang ◽  
James McKone
Keyword(s):  
Hydrogen Evolution ◽  
Thermal Reduction ◽  
Core Shell ◽  
Chemical Transformations ◽  
Nickel Molybdate ◽  
Mo Catalyst ◽  
Transmission Electron ◽  
Catalyst Formation ◽  
Exchange Membrane

Ni-Mo composites are known to catalyze several industrial relevant reactions involving hydrogen. Our interest is in Ni-Mo composites for hydrogen evolution reaction in alkaline anion exchange membrane water electrolyzers. We recently found that Ni-Mo composites comprise of core-shell structure where the core is metallic, rich in Ni while the shell is Mo-rich oxide. The transformation of the oxide intermediate into a core-shell architecture is studied in this work using <i>in situ</i> transmission electron microscopy. We reduced nickel molybdate nanorods in environmental transmission electron microscope and observed its transformation into the Ni-Mo catalyst composite. We further correlated these chemical transformations with the observed hydrogen evolution activity.

Direct Observation of Ni–Mo Catalyst Formation via Thermal Reduction of Nickel Molybdate Nanorods

2020 ◽  
Author(s):  
Rituja Patil ◽  
Stephen House ◽  
Aayush Mantri ◽  
Judith C. Yang ◽  
James McKone
Keyword(s):  
Hydrogen Evolution ◽  
Thermal Reduction ◽  
Core Shell ◽  
Chemical Transformations ◽  
Nickel Molybdate ◽  
Mo Catalyst ◽  
Transmission Electron ◽  
Catalyst Formation ◽  
Exchange Membrane

Ni-Mo composites are known to catalyze several industrial relevant reactions involving hydrogen. Our interest is in Ni-Mo composites for hydrogen evolution reaction in alkaline anion exchange membrane water electrolyzers. We recently found that Ni-Mo composites comprise of core-shell structure where the core is metallic, rich in Ni while the shell is Mo-rich oxide. The transformation of the oxide intermediate into a core-shell architecture is studied in this work using <i>in situ</i> transmission electron microscopy. We reduced nickel molybdate nanorods in environmental transmission electron microscope and observed its transformation into the Ni-Mo catalyst composite. We further correlated these chemical transformations with the observed hydrogen evolution activity.

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