Efficient electrocatalytic reduction of nitrite species on zeolite modified electrode with Cu-ZSM-5

Guzmán‐Vargas, Ariel; Oliver-Tolentino, Miguel A.; Lima, Enrique; Flores-Moreno, Jorge L.

doi:10.1016/j.electacta.2013.07.030

Cited by 29 publications

(13 citation statements)

References 54 publications

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“…[31] EF ¼ A three-electrode standard electrochemical cell was used for cyclic voltammetry (CV) measurements at 5 mV s À1 , with a carbon rod as counter electrode and saturated calomel electrode (SCE) as reference.…”

Section: Electrochemical Experimentsmentioning

confidence: 99%

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

et al. 2017

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Ni-based layered double hydroxides (LDHs), or hydrotalcite-like materials (HTs), were synthetized through co-precipitation at constant pH (NiAl and NiMg) and urea hydrolysis (NiMn) methods, and they were tested in the electrochemical methanol oxidation (MOR). The physicochemical properties were explored by using techniques such as X-ray diffraction, FT-IR spectroscopy, as well as electron paramagnetic resonance. In addition, correlation between active site arrangements and electrocatalytic activity was evidenced by density functional calculations.Specific site m(Ni 2 Mn-OH) showed the lowest proton energy removal at approximately 3.6 eV and the NiMn LDH sample containing a higher proportion of this site exhibited the best performance for the MOR process, with an enhancement factor of 5.16, which is attributed to limited deactivation of Ni during the reaction. CO 2 production was detected by differential electrochemical mass spectrometry to be on the order of ten times greater than O 2 .

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Section: Electrochemical Experimentsmentioning

confidence: 99%

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

et al. 2017

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“…13,14 Zeolite modified electrodes (ZMEs), for their unique size, shape and charge selectivity and high ion exchange capacity, have been used in electroanalysis and electrocatalysis. 15 Many metal doped ZMEs, such as Ni-ZMEs, 16 Cu-ZMEs, 17 Pd-ZMEs 18 and Fe-ZMEs, 19 have been investigated for their catalytic activities.…”

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confidence: 99%

Electrocatalytic reduction of PhCH₂Cl on Ag-ZSM-5 zeolite modified electrode

Sui

Sun

et al. 2016

RSC Adv.

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“…This mechanism can be proposed due to the required pH condition for Fenton process, i.e, the acidity is provided by zeolite surface as it was demonstrated before [16]. In order to evaluate the electrocatalytic activity toward Fenton process, the enhancement factor (EF) was calculated using Eq.…”

Section: Rb 5 (mentioning

confidence: 99%

Effective Electro-Fenton Degradation of Reactive Black 5 Dye using Modified Electrode with Cu-Zeolites

Oliver-Tolentino¹,

Jiménez-Álvarez²,

Martı́nez-Ortiz³

et al. 2014

J. New Mat. Electrochem. Sys.

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The electrocatalytic production of hydroxyl radical (HO•) on the surface of zeolite modified electrode (ME) employing Cu-Zeolites (ZSM5 and β) with different theoretical ionic exchange (15 and 100%) was investigated (ME/Cu-Zeolites). The i-E characteristic of ME/Cu-ZSM-5 presented the faradic process associated to redox couple Cu2+/Cu+. On the other hand, voltammetric studies showed that in presence of H2O2, the cathodic peak current of ME/Cu-Zeolites increases followed by a decrease in the corresponding anodic current. This suggested that hydroxyl radical was produced by a cooperative effect of the acidic properties of zeolite and copper that acts as a redox mediator on the electrode surface via an electrocatalytic mechanism. Experiments of degradation using azo dye Reactive Black 5 as probe molecule exhibited that the concentration of azo dye decreased in the time, this confirms the formation of hydroxyl radical on the surface of modified electrode; kinetics parameters demonstrated that the ME/Cu- β with 15% of ionic exchange presented the highest catalytic activity.

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Efficient electrocatalytic reduction of nitrite species on zeolite modified electrode with Cu-ZSM-5

Cited by 29 publications

References 54 publications

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Electrocatalytic reduction of PhCH₂Cl on Ag-ZSM-5 zeolite modified electrode

Effective Electro-Fenton Degradation of Reactive Black 5 Dye using Modified Electrode with Cu-Zeolites

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Efficient electrocatalytic reduction of nitrite species on zeolite modified electrode with Cu-ZSM-5

Cited by 29 publications

References 54 publications

Some Attributes of Mn3+ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Some Attributes of Mn3+ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Electrocatalytic reduction of PhCH2Cl on Ag-ZSM-5 zeolite modified electrode

Effective Electro-Fenton Degradation of Reactive Black 5 Dye using Modified Electrode with Cu-Zeolites

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Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Electrocatalytic reduction of PhCH₂Cl on Ag-ZSM-5 zeolite modified electrode