Comparison of the electrochemical oxidation of borohydride and dimethylamine borane on platinum electrodes: Implication for direct fuel cells

Martins, Joana T.; Nunes, M.C.

doi:10.1016/j.jpowsour.2007.09.028

Cited by 29 publications

(33 citation statements)

References 22 publications

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“…stepwise reaction on platinum and compete with the electrooxidation. Such a CE mechanism (chemical reaction followed by electrochemical reaction) is reported by Gyenge (Reactions 5 and 6) while the product can further undergo electrooxidation yielding 6 electrons (7), hydrolysis reaction (8) or a combination of both (see Reactions 9 and 10) [1,7,10]:…”

Section: Introductionmentioning

confidence: 87%

The electrooxidation of borohydride: A mechanistic study on palladium (Pd/C) applying RRDE, 11B-NMR and FTIR

Grimmer

Grandi

Zacharias

et al. 2016

Applied Catalysis B: Environmental

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Section: Introductionmentioning

confidence: 87%

The electrooxidation of borohydride: A mechanistic study on palladium (Pd/C) applying RRDE, 11B-NMR and FTIR

Grimmer

Grandi

Zacharias

et al. 2016

Applied Catalysis B: Environmental

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“…Early studies in 1965 (11) recognised the potential of borohydride ion as a fuel and intensive research has been carried out in recent years (12)(13)(14). Various metals have been evaluated in the search for an efficient and economic catalyst to realize the 8-electron oxidation of the borohydride ion; these include: Pt (15), Pd (16), Au (17), Os (18), Ag (19)(20), Cr-Ru, Ni-Ru, Pt-Ru (21) and Misch metal alloys (22).…”

Section: Introductionmentioning

confidence: 99%

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Hernández-Ramírez¹,

Alatorre-Ordaz²,

Yépez-Murrieta³

et al. 2009

ECS Trans.

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Direct oxidation borohydride fuel cells are very attractive energy conversion devices. Silver has been reported as one of the few materials which can catalyze an 8-electron oxidation. Potential step amperometric pulse techniques to synthesize nanostructured silver material on flat glassy carbon electrodes is reported and significant differences with bulk silver deposit have been observed. The oxidation of borohydride ion on the silver particles occurs at -0.025 V vs. SCE and the potential decreases towards negative values at longer cycle times. The oxidation current also decreases with the number of cycles, suggesting that the silver active sites become partially blocked by oxidation products of borohydride. The electroactive area per unit electrode area of silver was relatively low for particles deposited using potential step amperometric techniques on glassy carbon (0.002 cm2 per cm-2) compared with the area found at a polycrystalline silver electrode (0.103 cm2 per cm-2).

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“…At low potentials, three electrons are extracted from the molecule, denoting that hydrogen is not oxidized, whereas at high potential a six-electron oxidation occurs. In another study investigating the oxidation behavior of DMAB, Pt was used as the electrode [8]. Martins and Nunes evaluated the effect of DMAB concentration on the number of electrons transferred in the electrooxidation reaction.…”

Section: Rotating Disk Studiesmentioning

confidence: 99%

“…Dimethylamine borane (DMAB) has amine odor and a chemical formula of (CH 3 ) 2 NH:BH 3 [4]. DMAB is used in wide range of applications as a reductant [5][6][7] and is also used as a fuel in fuel cell applications [8,9].…”

Section: Introductionmentioning

confidence: 99%

Highly improved electrocatalytic oxidation of dimethylamine borane on silver nanoparticles modified polymer composite electrode

Koçak

Karabiberoğlu

et al. 2020

Turk J Chem

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Dimethylamine borane (DMAB) is a promising fuel alternative for fuel cell applications. In this work cyclic voltammetric behavior of DMAB was investigated on the polymerized aminophenol film decorated with Ag nanoparticles in alkaline media. The polymer film was formed on the glassy carbon electrode by electrochemical technique and then, the surface was modified with Ag nanoparticles. The surface of the modified electrode was identified by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy techniques. The developed electrode has displayed high electrocatalytic activity for DMAB oxidation in alkaline media depending on the supporting electrolyte concentration. Experimental parameters such as cycle number used in electropolymerization of p-aminophenol, deposition of Ag nanoparticles and supporting electrolyte were optimized.

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Comparison of the electrochemical oxidation of borohydride and dimethylamine borane on platinum electrodes: Implication for direct fuel cells

Cited by 29 publications

References 22 publications

The electrooxidation of borohydride: A mechanistic study on palladium (Pd/C) applying RRDE, 11B-NMR and FTIR

The electrooxidation of borohydride: A mechanistic study on palladium (Pd/C) applying RRDE, 11B-NMR and FTIR

Oxidation of the Borohydride Ion at Silver Nanoparticles on a Glassy Carbon Electrode (GCE) Using Pulsed Potential Techniques

Highly improved electrocatalytic oxidation of dimethylamine borane on silver nanoparticles modified polymer composite electrode

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