Electrocatalytic oxidation of formaldehyde on palladium nanoparticles electrodeposited on carbon ionic liquid composite electrode

Safavi, Afsaneh; Maleki, N.; Farjami, Fatemeh; Farjami, Elaheh

doi:10.1016/j.jelechem.2008.11.008

Cited by 109 publications

(60 citation statements)

References 44 publications

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“…Initial electro-nucleation studies are important as it provides a mechanistic study with simple approach that can be used to approximate the actual initial nucleation without the help of expensive instruments such as atomic force microscopy and other nano-imaging tools. Palladium is a well known catalyst for many reactions such as electrocatalytic oxidation of formaldehyde [37,38], hydrogenation of unsaturated hydrocarbons [39], oxidation of alcohols, and is routinely used in the automobile industry in catalytic converters to reduce the amounts of nitrogen oxides, carbon monoxide, and un-burned hydrocarbons [40]. Palladium is used in electronic industry, in view of its excellent resistance to corrosion and wear, good solderability and lower density, in the development of biosensors, and has been exploited as a component in an enzymatic glucose biosensor [41] as well as for detection of catecholamine [42] and DNA [43].…”

Section: Introductionmentioning

confidence: 99%

Tuning the Initial Electronucleation Mechanism of Palladium on Glassy Carbon Electrode

Alemu¹,

Assresahegn²,

Soreta³

2014

Port. Electrochim. Acta

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Electrochemical metal nucleation is the method for the formation of metal nanoparticles on the electrode surface. Studying the early stage of electronucleation is simpler than other methods as the driving force for nucleation is achieved by changing deposition potentials and concentration of metal ions. In this work, the potential step electrochemical deposition of palladium was studied from its chloride solution at room temperature on glassy carbon electrode surface. The nucleation mechanism was studied by analysis of the resulting current transients. Accordingly, the initial electro-nucleation mechanism of palladium nanoparticles was found to be varying depending on deposition conditions such as deposition potential and palladium concentration. It can be changed from 3D instantaneous (for all deposition potentials studied and in higher electrolytic concentration) to 3D progressive nucleation mechanism (for lower deposition potential and lower electrolytic concentration). In addition, the nucleation rate for each deposition potential as well as the concentration has been determined. The nucleation rate in this research is used to calculate the nuclei density and found to decrease from more negative deposition potential to more positive deposition potential in agreement with the observed shift in electronucleation mechanism.

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Section: Introductionmentioning

confidence: 99%

Tuning the Initial Electronucleation Mechanism of Palladium on Glassy Carbon Electrode

Alemu¹,

Assresahegn²,

Soreta³

2014

Port. Electrochim. Acta

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“…Carbon ionic liquid electrode has been used as convenient electrode for different electrochemical applications [36][37][38][39][40]. In addition, CILE shows resistivity toward fouling by biomolecules [36] and phenolic compounds [41].…”

Section: Introductionmentioning

confidence: 99%

“…The presence of ionic liquid as the binder in CILE provides some hydrophilic domains at its surface with the expectation of more precise control of the particle growth [39]. Palladium nanoparticles supported on a CILE (Pd/ CILE) exhibit a high catalytic activity towards electrooxidation of hydrazine [42] and formaldehyde [43]. Nanoscale nickel hydroxide modified carbon ionic liquid electrode (CILE) has been employed as a highly sensitive and selective enzymatic-free glucose biosensor [44].…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of Tryptophan at Gold Nanoparticle‐Modified Carbon Ionic Liquid Electrode

Safavi

Momeni

2010

Electroanalysis

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The electrochemical behavior of tryptophan was studied at the carbon ionic liquid electrode (CILE) modified with gold nanoparticle (GNP). This electrode has a stable and excellent response toward tryptophan. Under optimum experimental conditions, the calibration curve was linear in the tryptophan concentration range of 5 to 900 mM with an excellent correlation coefficient (0.995). The experimental limit of detection was 4 mM. Contrary to many other electrodes, the oxidation of tryptophan on GNP/CILE does not result in electrode fouling. GNP/CILE has been effectively applied to the determination of tryptophan in composite amino acid injection.

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“…Remediation of trichloroethylene has been possible by use of bioprecipitated and encapsulated palladium nanoparticles in a fi xed bed reactor (Hennebel et al 2009 ). Palladium nanoparticles electrodeposited on carbon ionic liquid composite electrode are useful for electrocatalytic oxidation of formaldehyde which is comparatively far superior to many of the previously reported formaldehyde sensors (Safavi et al 2009 ). Photooxidation of xylenol orange is possible in the presence of palladium-modifi ed TiO 2 catalysts, which is higher than the semiconducting support, being infl uenced by the size of the palladium clusters on the support (Iliev et al 2004 ).…”

Section: Palladium Nanoparticlesmentioning

confidence: 97%

Green Nanotechnology: The Solution to Sustainable Development of Environment

Sivaraj

Salam

Periakaruppan

et al. 2014

Environmental Sustainability

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The environment is undergoing constant degradation in terms of quality as well as quantity due to various developmental activities occurring for satisfaction of the growing population's needs. Nanoparticles have been existing in the environment since millions of years and also being utilized since thousands of years in many areas due to their ability to be synthesized and manipulated. Literature has shown the ability of nanoparticles for detoxifi cation of environment with respect to their usage in wastewater treatment, dye degradation, etc. However, the conventional physical and chemical methods have also shown to affect environment as it involves use of toxic substances. Hence, the green nanotechnology has gained considerable interest in recent times as an eco-friendly alternative technology for nanotechnology products. This review highlighted the characteristics, goals, and various issues in concern, of this potential fi eld as an ultimate solution for sustainable development of environment.

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Electrocatalytic oxidation of formaldehyde on palladium nanoparticles electrodeposited on carbon ionic liquid composite electrode

Cited by 109 publications

References 44 publications

Tuning the Initial Electronucleation Mechanism of Palladium on Glassy Carbon Electrode

Tuning the Initial Electronucleation Mechanism of Palladium on Glassy Carbon Electrode

Electrocatalytic Oxidation of Tryptophan at Gold Nanoparticle‐Modified Carbon Ionic Liquid Electrode

Green Nanotechnology: The Solution to Sustainable Development of Environment

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