Anodic oxidation of butan-1-ol on Pd and Pt electrodes in alkaline medium

Mukherjee, Parthasarathi; Bhattacharya, Swapan Kumar

doi:10.1007/s10800-014-0694-y

Cited by 12 publications

(6 citation statements)

References 43 publications

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“…The same reasoning for ethanol can be applied for n -butanol, although it should be noted that the CO ads coverage will be even lower in the case of n -butanol than during EOR. Mukherjee and Bhattacharya [ 58 ] observed the formation of aldehyde and ester groups during n -butanol oxidation on Pt and Pd electrodes in alkaline media using in-situ FTIR and this was attributed to butyraldehyde and butyric acid formation. Nan-Hai and Shi-Gang [ 33 ] also conducted an in-situ FTIR study of n -butanol on Pt in acidic media and concluded that the formation of butyric acid (or via butyraldehyde) is the major reaction pathway, indicating that the complete oxidation to CO 2 is low (Scheme 3 ).…”

Section: Resultsmentioning

confidence: 99%

Effect of Mass Transport on the Electrochemical Oxidation of Alcohols Over Electrodeposited Film and Carbon-Supported Pt Electrodes

et al. 2018

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Electrochemical oxidation of four different alcohol molecules (methanol, ethanol, n-butanol and 2-butanol) at electrodeposited Pt film and carbon-supported Pt catalyst film electrodes, as well as the effect of mass transport on the oxidation reaction, has been studied systematically using the rotating disk electrode (RDE) technique. It was shown that oxidation current decreased with an increase in the rotation rate (ω) for all alcohols studied over electrodeposited Pt film electrodes. In contrast, the oxidation current was found to increase with an increase in the ω for Pt/C in ethanol and n-butanol-containing solutions. The decrease was found to be nearly reversible for ethanol and n-butanol at the electrodeposited Pt film electrode ruling out the possibility of intermediate CO ads poisoning being the sole cause of the decrease and was attributed to the formation of soluble intermediate species which diffuse away from the electrode at higher ω. In contrast, an increase in the current with an increase in ω for the carbon supported catalyst may suggest that the increase in residence time of the soluble species within the catalyst layer, results in further oxidation of these species. Furthermore, the reversibility of the peak current on decreasing the ω could indicate that the surface state has not significantly changed due to the sluggish reaction kinetics of ethanol and n-butanol.

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Section: Resultsmentioning

confidence: 99%

Effect of Mass Transport on the Electrochemical Oxidation of Alcohols Over Electrodeposited Film and Carbon-Supported Pt Electrodes

et al. 2018

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“…4 that no peak appears for C indicating that the base material (graphite) and nafion are inactive in alkali in the potential range studied. For C/Pd electrode beside an initial plateau two peaks of current densities are obtained at ca −0.10 V and 0.33 V. The plateau arises due to hydrogen desorption and the peaks appear due to the formation of two surface intermediates, M OH and M O following the electrochemical reactions [37]:…”

Section: Structural Characterizationmentioning

confidence: 96%

Room temperature synthesis of Pd–Cu nanoalloy catalyst with enhanced electrocatalytic activity for the methanol oxidation reaction

Mandal

Bhattacharjee

Roy

et al. 2015

Applied Catalysis A: General

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“…The Pd electrode was tested in both acid and alkaline electrolytes and is compared in Figure 2. Unlike Pt electrodes, the ESA calculation for Pd is difficult from the monolayer hydrogen charge due to the ability of bulk Pd to absorb hydrogen (21,22). Thus the ESA was calculated from the charge of monolayer of chemisorbed oxygen(Qo) which in turn calculated from the PdO reduction peak area (23) using equation [2] where QPdO is the charge required for the reduction of Pd-O monolayer (405 µC cm -2 ) (22,24,25).…”

Section: Pd Electrode In Alkaline Mediamentioning

confidence: 99%

Preliminary Investigation on the Electrochemical Activity of Butanol Isomers as Potential Fuel for Direct Alcohol Fuel Cell

Puthiyapura¹,

Brett²,

Russell³

et al. 2015

ECS Trans.

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A preliminary investigation of electrocatalytic oxidation activity of butanol isomers has been carried out to study their potential as fuels for direct alcohol fuel cells. The electrochemical study was carried out on Pt and Pd electrodes using a three electrode cell set up in alkaline media. The primary alcohol isomers of butanol were observed to behave similarly in their electrochemical reactions whereas 2-butanol showed completely different oxidation features on both catalysts. For example, no poisoning effects were observed for 2-butanol unlike for the primary butanol isomers. In contrast, tert-butanol did not show any oxidation reaction on Pt and Pd electrodes. Furthermore, Pd was not active at all in acidic media for butanol oxidation. The reactivity of butanol isomers were found to be in the order n-butanol>iso-butanol>2-butanol>tert-butanol based on the oxidation current density values.

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Anodic oxidation of butan-1-ol on Pd and Pt electrodes in alkaline medium

Cited by 12 publications

References 43 publications

Effect of Mass Transport on the Electrochemical Oxidation of Alcohols Over Electrodeposited Film and Carbon-Supported Pt Electrodes

Effect of Mass Transport on the Electrochemical Oxidation of Alcohols Over Electrodeposited Film and Carbon-Supported Pt Electrodes

Room temperature synthesis of Pd–Cu nanoalloy catalyst with enhanced electrocatalytic activity for the methanol oxidation reaction

Preliminary Investigation on the Electrochemical Activity of Butanol Isomers as Potential Fuel for Direct Alcohol Fuel Cell

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