Novel Bimetallic Pd–X (X = Ni, Co) Nanoparticles Assembled on N-Doped Reduced Graphene Oxide as an Anode Catalyst for Highly Efficient Direct Sodium Borohydride–Hydrogen Peroxide Fuel Cells

2021 ◽  
Author(s):  
Mir Ghasem Hosseini ◽  
Vahid Daneshvari-Esfahlan ◽  
Sigrid Wolf ◽  
Viktor Hacker
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Fuel Cells ◽  
Reduced Graphene Oxide ◽  
Sodium Borohydride ◽  
Anode Catalyst ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Co Nanoparticles

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.

Reduced graphene oxide foam supported CoNi nanosheets as an efficient anode catalyst for direct borohydride hydrogen peroxide fuel cell

2019 ◽  
Vol 491 ◽  
pp. 659-669 ◽  
Author(s):  
Biaopeng Li ◽  
Qing Yan ◽  
Congying Song ◽  
Peng Yan ◽  
Ke Ye ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Graphene Oxide ◽  
Fuel Cell ◽  
Reduced Graphene Oxide ◽  
Anode Catalyst ◽  
Reduced Graphene

scholarly journals Enhanced electrochemical activities of morphologically tuned MnFe2O4 nanoneedles and nanoparticles integrated on reduced graphene oxide for highly efficient supercapacitor electrodes

2021 ◽  
Author(s):  
R Rajalakshmi ◽  
Remya K. P. ◽  
Viswanathan Chinnuswamy ◽  
Nagamony Ponpandian
Keyword(s):  
Graphene Oxide ◽  
Physicochemical Properties ◽  
Reduced Graphene Oxide ◽  
Two Dimensional ◽  
2D Material ◽  
Highly Efficient ◽  
Reduced Graphene

The morphology of a nanoparticle strongly controls the path ofelectronic interaction, which directly correlates to the physicochemical properties and also the electrochemical comportment. Conjoining it with a two-dimensional (2D) material...

Nitrogen/sulfur dual-doped reduced graphene oxide supported CuFeS2 as an efficient electrocatalyst for the oxygen reduction reaction

2018 ◽  
Vol 42 (3) ◽  
pp. 2081-2088 ◽  
Author(s):  
Man Zhang ◽  
Wei Hong ◽  
Ruinan Xue ◽  
Lingzhi Li ◽  
Guanbo Huang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Low Cost ◽  
Reduction Reaction ◽  
Reduced Graphene

At present, low-cost and efficient electrocatalysts for accelerating the oxygen reduction reaction in fuel cells are highly desired.

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