Pd, Pd–Ni and Pd–Ni–Fe nanoparticles anchored on MnO2/Vulcan as efficient ethanol electro-oxidation anode catalysts

Eshghi, Abolfath; Behbahani, Elham Sadati; Kheirmand, Mehdi; Ghaedi, Mehrorang

doi:10.1016/j.ijhydene.2019.08.236

Cited by 49 publications

(22 citation statements)

References 65 publications

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“…As already mentioed in CV section, higher degree of alloying resulting in low overpotential for this electrocatalyst (Pd-Pt (16:4)/C). As reported by Eshghi et al [56], Al-Saleh et al [57] and Habibi et al [58] low overpotential of a electrocatalyst would results in charge transfer resistance. Although, Pt amount is high in the Pd-Pt(10:10)/ and Pd-Pt (4:16)/C, the degree of alloying is low and thus, charge transfer resistance for both the electrocatalysts are high.…”

Section: Eis Study Of Synthesized Anode Electrocatalystmentioning

confidence: 78%

Synthesis of Pd and Pt Based Low Cost Bimetallic Anode Electrocatalyst for Glycerol Electrooxidation in Membraneless Air Breathing Microfluidic Fuel Cell

Panjiara

Pramanik

2021

J. Electrochem. Sci. Technol

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The different weight ratios of Pd to Pt, i.e., 16:4, 10:10, 4:16 in Pd-Pt/C and Pd (20 wt. %) /C electrocatalysts with low metal loading were synthesized for glycerol electrooxidation in an air breathing microfluidic fuel cell (MFC). The cell performance on Pd-Pt (16:4)/C anode electrocatalyst was found best among all the electrocatalysts tested. The single cell when tested at a temperature of 35 o C using Pd-Pt (16:4)/C, showed maximum open circuit voltage (OCV) of 0.70 V and maximum power density of 2.77 mW/cm 2 at a current density of 7.71 mA/cm 2. The power density increased 1.45 times when cell temperature was raised from 35 o C to 75 o C. The maximum OCV of 0.78 V and the maximum power density of 4.03 mW/cm 2 at a current density of 10.47 mA/cm 2 were observed at the temperature of 75 o C. The results of CV substantiate the single cell performance for various operating parameters.

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Section: Eis Study Of Synthesized Anode Electrocatalystmentioning

confidence: 78%

Synthesis of Pd and Pt Based Low Cost Bimetallic Anode Electrocatalyst for Glycerol Electrooxidation in Membraneless Air Breathing Microfluidic Fuel Cell

Panjiara

Pramanik

2021

J. Electrochem. Sci. Technol

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“…On the other hand, previous reports showed that the Ni particle could catalyze the ectrooxidation of ethanol to produce intermediates such as electrons and protons [21,22]. Further, in 2019, Abolfath Eshghi et al proposed that there were the interactions between MnO 2 and ethanol in the electrochemical process, and found that MnO 2 could catalyze the ectrooxidation of ethanol, too [21]. However, the clear explanation about interactions between MnO 2 and ethanol was not given in detail.…”

Section: Effect Of Alcohol On Deposition Of Mnomentioning

confidence: 97%

“…Similarly, the mentioned reason may apply to this work, in other words, alcohol may improve the surface tension of the Ni foam, which helps MnO 2 to be better deposited onto the Ni foam. On the other hand, previous reports showed that the Ni particle could catalyze the ectrooxidation of ethanol to produce intermediates such as electrons and protons [21,22]. Further, in 2019, Abolfath Eshghi et al proposed that there were the interactions between MnO 2 and ethanol in the electrochemical process, and found that MnO 2 could catalyze the ectrooxidation of ethanol, too [21].…”

Section: Effect Of Alcohol On Deposition Of Mnomentioning

confidence: 99%

High Specific Capacitance of the Electrodeposited MnO2 on Porous Foam Nickel Soaked in Alcohol and its Dependence on Precursor Concentration

et al. 2020

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In this work, we used the mixed solution of manganese acetate and sodium sulfate to deposit manganese dioxide on the three-dimensional porous nickel foam that was previously soaked in alcohol, and then the effects of solution concentrations on their capacitance properties were investigated. The surface morphology, microstructure, elemental valence and other information of the material were observed by scanning electron microscope (SEM), Transmission Electron Microscope (TEM), X-ray photoelectron spectroscopy (XPS), etc. The electrochemical properties of the material were tested by Galvanostatic charge-discharge (GCD), Cyclic Voltammetry (CV), Chronoamperometry (CA), Electrochemical impedance spectroscopy (EIS), etc. The MnO2 electrode prepared at lower concentrations can respectively reach a specific capacitance of 529.5 F g−1 and 237.3 F g−1 at the current density of 1 A g−1 and 10 A g−1, and after 2000 cycles, the capacity retention rate was still 79.8% of the initial capacitance, and the energy density can even reach 59.4 Wh Kg−1, while at the same time, it also has a lower electrochemical impedance (Rs = 1.18 Ω, Rct = 0.84 Ω).

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“…The strong affinity between metal catalysts and carbon-based supports may originate from the formation of possible metal-carbon bonding. In general, Vulcan XC-72R is the most popular commercial carbon black that has been widely used as support materials in Pt-and Pd-based catalysts [77]. However, the micropores on Vulcan XC-72R are usually below 2 nm, making it hard for it to be completely interacted with most catalysts.…”

Section: Carbon-based Materialsmentioning

confidence: 99%

“…The scheme of the synergistic effects between Ru and TiO2 is presented in Figure 6a. As most metal oxides have inferior electrical conductivity, they are generally mixed with commercial carbon black (Vulcan XC-72R) to form composite supports, such as MnO2/carbon black [77] and Ni-SiO2/carbon black [99] for the integration of efficient anode catalysts. Reproduced with permission from [28].…”

Section: Non-carbon-based Supportsmentioning

confidence: 99%

Advanced Catalytic Materials for Ethanol Oxidation in Direct Ethanol Fuel Cells

et al. 2020

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Direct ethanol fuel cells (DEFCs) have emerged as promising and advanced power systems that can considerably reduce fossil fuel dependence, and thus have attracted worldwide attention. DEFCs have many apparent merits over the analogous devices fed with hydrogen or methanol. As the key constituents, the catalysts for both cathodes and anodes usually face some problems (such as high cost, low conversion efficiency, and inferior durability) that hinder the commercialization of DEFCs. This review mainly focuses on the most recent advances in nanostructured catalysts for anode materials in DEFCS. First, we summarize the effective strategies used to achieve highly active Pt- and Pd-based catalysts for ethanol electro-oxidation, including composition control, microstructure design, and the optimization of support materials. Second, a few non-precious catalysts based on transition metals (such as Fe, Co, and Ni) are introduced. Finally, we outline the concerns and future development of anode catalysts for DEFCs. This review provides a comprehensive understanding of anode catalysts for ethanol oxidation in DEFCs.

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Pd, Pd–Ni and Pd–Ni–Fe nanoparticles anchored on MnO2/Vulcan as efficient ethanol electro-oxidation anode catalysts

Cited by 49 publications

References 65 publications

Synthesis of Pd and Pt Based Low Cost Bimetallic Anode Electrocatalyst for Glycerol Electrooxidation in Membraneless Air Breathing Microfluidic Fuel Cell

Synthesis of Pd and Pt Based Low Cost Bimetallic Anode Electrocatalyst for Glycerol Electrooxidation in Membraneless Air Breathing Microfluidic Fuel Cell

High Specific Capacitance of the Electrodeposited MnO2 on Porous Foam Nickel Soaked in Alcohol and its Dependence on Precursor Concentration

Advanced Catalytic Materials for Ethanol Oxidation in Direct Ethanol Fuel Cells

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