A direct borohydride fuel cell employing Prussian Blue as mediated electron-transfer hydrogen peroxide reduction catalyst

Selvarani, G.; Prashant, Shreelaxmi; Sahu, A. K.; Sridhar, P.; Pitchumani, S.; Shukla, Ashok

doi:10.1016/j.jpowsour.2007.11.115

Cited by 74 publications

(45 citation statements)

References 37 publications

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“…3 Despite this long history, the first study of the electrochemical properties of PB was not reported until 1978. [5][6][7][8][9][10][11][12][13][14][15] Furthermore, the PB-based nanodevices have also been investigated intensively for use in self-rechargeable batteries, 14 microbial batteries, 11 electrochromic displays, 16 fuel cells, 17,18 sodium and potassium ion batteries, [19][20][21] and as signal-enhancing nanodevices 15,[22][23][24] due to their superior electrochemical and photoelectrochemical properties. [5][6][7][8][9][10][11][12][13][14][15] Furthermore, the PB-based nanodevices have also been investigated intensively for use in self-rechargeable batteries, 14 microbial batteries, 11 electrochromic displays, 16 fuel cells, 17,18 sodium and potassium ion batteries, [19][20][21] and as signal-enhancing nanodevices 15,[22]…”

Section: Introductionmentioning

confidence: 99%

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

et al. 2015

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Prussian blue (PB), the oldest synthetic coordination compound, is a classic and fascinating transition metal coordination material. Prussian blue is based on a three-dimensional (3-D) cubic polymeric porous network consisting of alternating ferric and ferrous ions, which provides facile assembly as well as precise interaction with active sites at functional interfaces. A fundamental understanding of the assembly mechanism of PB hetero-interfaces is essential to enable the full potential applications of PB crystals, including chemical sensing, catalysis, gas storage, drug delivery and electronic displays. Developing controlled assembly methods towards functionally integrated hetero-interfaces with adjustable sizes and morphology of PB crystals is necessary. A key point in the functional interface and device integration of PB nanocrystals is the fabrication of hetero-interfaces in a well-defined and oriented fashion on given substrates. This review will bring together these key aspects of the hetero-interfaces of PB nanocrystals, ranging from structure and properties, interfacial assembly strategies, to integrated hetero-structures for diverse sensing.

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Section: Introductionmentioning

confidence: 99%

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

et al. 2015

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“…It is used as an electron-transfer mediator due to its excellent electrocatalytic properties and has found applications in ion selective electrodes [18], charge storage devices [18], catalysis [19], and biosensors [20]. It was reported that electrodes modified with PB nanoparticles demonstrate a significantly decreased background, resulting in improved signal-tonoise ratio [21].…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of Diethylaminoethanethiol and Hydrazine at Single‐walled Carbon Nanotubes Modified with Prussian Blue Nanoparticles

Adekunle

Ozoemena

2010

Electroanalysis

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In this work, edged plane pyrolytic graphite electrode EPPGE was modified with functionalised single-walled carbon nanotubes and Prussian blue nanoparticles (PB). The modified electrode was characterised by techniques such as TEM, FTIR, XPS, EDX and cyclic voltammetry. The EPPGE-SWCNT-PB platform exhibited enhanced electron transport and catalytic efficiency towards the oxidation of Diethylaminoethanethiol (DEAET) and hydrazine compared with the other electrodes studied. The EPPGE-SWCNT-PB showed good electrochemical stability in the analytical solution, showing limit of detection in the micromolar range and catalytic rate constant of 3.71 10 6 and 7.56 10 6 cm 3 mol À1 s À1 for DEAET and hydrazine respectively. The adsorption properties of these analytes that impact on their detection at the SWCNT-PB film modified electrode were evaluated and discussed.

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“…A number of surfactants and hydrogen evolution inhibitors have been studied (23)(24)(25) as well as certain metals, notably gold and silver, which are less active for the hydrolysis reaction (1). Although the oxidation of borohydride on silver electrodes occurs at more positive potentials than on gold electrodes, silver is attractive due to its relatively lower cost (2% compared to gold's cost).…”

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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A direct borohydride fuel cell employing Prussian Blue as mediated electron-transfer hydrogen peroxide reduction catalyst

Cited by 74 publications

References 37 publications

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

New faces of porous Prussian blue: interfacial assembly of integrated hetero-structures for sensing applications

Electrocatalytic Oxidation of Diethylaminoethanethiol and Hydrazine at Single‐walled Carbon Nanotubes Modified with Prussian Blue Nanoparticles

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

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