Effect of Ni content in PdNi/C anode catalysts on power and methanol co-generation in alkaline direct methane fuel cell type

Santos, Mirian C.; Godoi, Camila M.; Kang, Hong Seong; Souza, R. F. B. de; Ramos, Andrezza S.; Antolini, Ermete; Neto, Almir Oliveira

doi:10.1016/j.jcis.2020.06.017

Cited by 17 publications

(18 citation statements)

References 58 publications

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“…Figure 3 present the cyclic voltammetry pattern obtained for PdSb electrocatalysts in alkaline media, is possible to observe the region of adsorption/desorption of hydrogen on Pd (-0.85V to -0.45V).The increase of Sb amount showed an increase in the current values in the double layer (-0.45 -0.15 V) in relation to Pd/C, which may be attributed to the formation of antimony species 35,45 The fundamental step for the oxidation of methane by electrochemical ways is the activation of water that generates hydroxyl radicals which in turn promote the breaking of the C-H bond 26,27,47,48 , in agreement with Equations 1 and 2. (1)…”

Section: Resultsmentioning

confidence: 99%

Application of Binary PdSb/C as an Anode in a Polymeric Electrolyte Reactor-Fuel Cell Type for Electrosynthesis of Methanol from Methane

et al. 2022

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PdSb catalyst prepared in different compositions were applied as an anode in a polymeric electrolyte reactor -fuel cell type (PER-FC) to convert methane into oxygenated products and energy in mild conditions. The PER-FC polarization curves for Pd 90 Sb 10 /C presented maximum current density about 0.92 mW cm -2 about 15% higher than PdSb materials. However, the material Pd 50 Sb 50 /C showed higher reaction rate for methanol generation than the other materials occurring close to the OCV (r ~ 7 mol L -1 h -1 ). The qualitative analyses of PER-FC effluent by FT-IR identified products as methanol, carbonate and formate ions from the partial oxidation of methane for all materials.

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Section: Resultsmentioning

confidence: 99%

Application of Binary PdSb/C as an Anode in a Polymeric Electrolyte Reactor-Fuel Cell Type for Electrosynthesis of Methanol from Methane

et al. 2022

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“…The electrocatalytic oxidation of methane is strongly influenced by potential, and the products of the same catalyst at different potentials can be different. 16,[126][127][128] Electrochemistry is dependent on potential, and in electrocatalytic methane oxidation, the electrolytic voltage is often selected as follows: Oh et al 104 analyzed the impact of potential on a ZrO 2 NT/Co 3 O 4 catalyst. As compared to water oxidation, methane oxidation occurs at a lower initial potential.…”

Section: Temperature Potential and Timementioning

confidence: 99%

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Liu,

Yan,

Chen

et al. 2024

Green Chem.

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“…In later work, Neto's Group [87] investigated the effect of Ni content in PdNi/C catalysts used as anode materials in AAEMFCs on the fuel cell performance and methanol selectivity. They observed that the increase Ni content enhances the energy generation and the formation of products more oxidized than methanol, probably due to the high ability of NiOx to activate water monitored by electrochemical experiments with Raman spectroscopy in situ using a electrochemical cell shown in figure 3.…”

Section: Fuel Cells For Cogeneration Of Energy and Chemicalsmentioning

confidence: 99%

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

Souza¹,

Florio²,

Antolini³

et al. 2022

Preprint

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The conversion of methane into chemicals is of interest to achieve a decarbonized future. Fuel cells are electrochemical devices commonly used to obtain electrical energy, but can be utilized either for chemicals production or both energy and chemicals cogeneration. In this work, the partial oxidation of methane in fuel cells for electricity generation and valuable chemicals production at the same time is reviewed. For this purpose, different types of methane-fed fuel cells, both low temperature fuel cells, such as PEMFCs and AAEMFCs, and high temperature fuel cells, such as SOFCs, have been used. Also if few works have been devoted to this topic, the promising results drive the development of fuel cells using methane as the source for the cogeneration of power and valuable chemicals.

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Effect of Ni content in PdNi/C anode catalysts on power and methanol co-generation in alkaline direct methane fuel cell type

Cited by 17 publications

References 58 publications

Application of Binary PdSb/C as an Anode in a Polymeric Electrolyte Reactor-Fuel Cell Type for Electrosynthesis of Methanol from Methane

Application of Binary PdSb/C as an Anode in a Polymeric Electrolyte Reactor-Fuel Cell Type for Electrosynthesis of Methanol from Methane

Recent advances in ambient electrochemical methane conversion to oxygenates using metal oxide electrocatalysts

Partial Methane Oxidation in Fuel Cell-Type Reactors for Co-Generation of Energy and Chemicals

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