MnFe2O4@nitrogen-doped reduced graphene oxide nanohybrid: an efficient bifunctional electrocatalyst for anodic hydrazine oxidation and cathodic oxygen reduction

2017 ◽  
Vol 7 (24) ◽  
pp. 5920-5931 ◽  
Author(s):  
Santimoy Khilari ◽  
Debabrata Pradhan
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Single Step ◽  
Bifunctional Electrocatalyst ◽  
Nitrogen Doped ◽  
Hydrazine Oxidation ◽  
Reduced Graphene

A bifunctional MnFe2O4/N-rGO composite synthesized hydrothermally in a single step is demonstrated for hydrazine oxidation and oxygen reduction.

Nano ceria supported nitrogen doped graphene as a highly stable and methanol tolerant electrocatalyst for oxygen reduction

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 77100-77104 ◽  
Author(s):  
S. Soren ◽  
B. D. Mohaptra ◽  
S. Mishra ◽  
A. K. Debnath ◽  
D. K. Aswal ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Single Step ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Methanol Tolerant ◽  
Nano Ceria

Ceria (CeO2) nanoparticles with ellipsoid shape are coupled on a nitrogen doped reduced graphene oxide sheet through a single step solvothermal procedure.

Synthesis and Characterization of Nitrogen Doped Reduced Graphene Oxide Based Cobalt-ZIF-8 Catalysts for Oxygen Reduction Reaction

2021 ◽  
Vol MA2021-02 (36) ◽  
pp. 1024-1024
Author(s):  
Hassan Shirzadi Jahromi ◽  
Shivi Saxena ◽  
Sudharsan Sridhar ◽  
Muralidhar K Ghantasala ◽  
Ramakrishna Guda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Synthesis And Characterization ◽  
Nitrogen Doped ◽  
Reduced Graphene

Synthesis and Characterization of Nitrogen Doped Reduced Graphene Oxide Based Cobalt-ZIF-8 Catalysts for Oxygen Reduction Reaction

2021 ◽  
Vol 104 (8) ◽  
pp. 59-71
Author(s):  
Hassan Shirzadi Jahromi ◽  
Shivi Saxena ◽  
Sudharsan Sridhar ◽  
Muralidhar K Ghantasala ◽  
Ramakrishna Guda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Synthesis And Characterization ◽  
Nitrogen Doped ◽  
Reduced Graphene

scholarly journals Palladium-Nickel Electrocatalysts on Nitrogen-Doped Reduced Graphene Oxide Nanosheets for Direct Hydrazine/Hydrogen Peroxide Fuel Cells

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1372
Author(s):  
Mir Ghasem Hosseini ◽  
Vahid Daneshvari-Esfahlan ◽  
Hossein Aghajani ◽  
Sigrid Wolf ◽  
Viktor Hacker
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Fuel Cells ◽  
Reduced Graphene Oxide ◽  
Bimetallic Catalyst ◽  
Catalyst Activity ◽  
Open Circuit ◽  
Nitrogen Doped ◽  
Hydrazine Oxidation ◽  
Reduced Graphene

In the present work, nitrogen-doped reduced graphene oxide-supported (NrGO) bimetallic Pd–Ni nanoparticles (NPs), fabricated by means of the electrochemical reduction method, are investigated as an anode electrocatalyst in direct hydrazine–hydrogen peroxide fuel cells (DHzHPFCs). The surface and structural characterization of the synthesized catalyst affirm the uniform deposition of NPs on the distorted NrGO. The electrochemical studies indicate that the hydrazine oxidation current density on Pd–Ni/NrGO is 1.81 times higher than that of Pd/NrGO. The onset potential of hydrazine oxidation on the bimetallic catalyst is also slightly more negative, i.e., the catalyst activity and stability are improved by Ni incorporation into the Pd network. Moreover, the Pd–Ni/NrGO catalyst has a large electrochemical surface area, a low activation energy value and a low resistance of charge transfer. Finally, a systematic investigation of DHzHPFC with Pd–Ni/NrGO as an anode and Pt/C as a cathode is performed; the open circuit voltage of 1.80 V and a supreme power density of 216.71 mW cm−2 is obtained for the synthesized catalyst at 60 °C. These results show that the Pd–Ni/NrGO nanocatalyst has great potential to serve as an effective and stable catalyst with low Pd content for application in DHzHPFCs.

scholarly journals Thermally reduced mesoporous manganese MOF @reduced graphene oxide nanocomposite as bifunctional electrocatalyst for oxygen reduction and evolution

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27728-27742 ◽  
Author(s):  
Abdul Wahab ◽  
Naseem Iqbal ◽  
Tayyaba Noor ◽  
Sheeraz Ashraf ◽  
Muhammad Arslan Raza ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Renewable Energy ◽  
Fuel Cells ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Crucial Role ◽  
Bifunctional Electrocatalyst ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Reduced Graphene

Oxygen electrocatalysis plays a crucial role in harnessing energy from modern renewable energy technologies like fuel cells and metal–air batteries.

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