A 28-W portable direct borohydride–hydrogen peroxide fuel-cell stack

Raman, R.K.; Prashant, Shreelaxmi; Shukla, Avanish

doi:10.1016/j.jpowsour.2006.07.059

Cited by 92 publications

(61 citation statements)

References 13 publications

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“…However, there are several technical challenges that need to be addressed in the DBFCs employing air or H 2 O 2 as oxidant [7][8]. Among these, DBFCs with acidified H 2 O 2 as oxidant provide high operating voltages and power densities, and are especially useful for submersible and space applications where anaerobic conditions prevail [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A Self-Supported Direct Borohydride-Hydrogen Peroxide Fuel Cell System

et al. 2009

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Abstract:A self-supported direct borohydride-hydrogen peroxide fuel cell system with internal manifolds and an auxiliary control unit is reported. The system, while operating under ambient conditions, delivers a peak power of 40 W with about 2 W to run the auxiliary control unit. A critical cause and effect analysis, on the data for single cells and stack, suggests the optimum concentrations of fuel and oxidant to be 8 wt. % NaBH 4 and 2 M H 2 O 2 , respectively in extending the operating time of the system. Such a fuel cell system is ideally suited for submersible and aerospace applications where anaerobic conditions prevail.

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Section: Introductionmentioning

confidence: 99%

A Self-Supported Direct Borohydride-Hydrogen Peroxide Fuel Cell System

et al. 2009

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“…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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“…The authors reported a peak power density of 50 mW cm À2 using a six-cell fuel cell stack which is 30% higher than the power density obtained with the FM01 (35 mA cm À2 ) cell described above. It should be realised that the concentration of hydrogen peroxide in the work reported by Raman et al [73] was 2 mol dm À3 [73] whereas in the work reported by Ponce de Leon at al., it was 1 mol dm À3 [14].…”

Section: Flow Batteries and Fuel Cells For Energy Conversion And Storagementioning

confidence: 82%

“…A similar sodium borohydride-hydrogen peroxide fuel cell has been reported by researchers using different cells. For example, Raman et al [73] reported a 28 W portable direct borohydrideperoxide fuel cell using 4%wt. aqueous NaBH 4 in 20 wt.% aqueous NaOH coupled with 2 mol dm À3 H 2 O 2 in 1.5 mol dm À3 H 2 SO 4 .…”

Section: Flow Batteries and Fuel Cells For Energy Conversion And Storagementioning

confidence: 99%

The filter-press FM01-LC laboratory flow reactor and its applications

Rivera

León

Nava

et al. 2015

Electrochimica Acta

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Keywords: electrolyser energy storage environmental remediation FM01-LC mass transport metal ion removal inorganic and organic electrosynthesis water treatment A B S T R A C T The FM01-LC is a laboratory-scale, electrochemical filter-press cell with a projected electrode area of 64 cm 2 and a rectangular electrolyte flow channel which was originally based on the larger FM21-SP electrolyser of 2100 cm 2 projected electrode area designed for the chlor-alkali industry then diversified to other applications. Many laboratories and industries have utilised this type of controlled flow reactor containing plane parallel electrodes in a rectangular channel for industrial and commercial applications. The diverse range of electrodes possible in such cells is emphasized with examples including 3-D metals and carbon, coated metal electrodes and nanostructured surfaces offering a high surface area. The experimental characterization and computational modelling of its reaction environment are concisely described discussed to appreciate the features of this type of electrochemical reactor. The cell construction and reaction environment are summarized, followed by an illustration of its use for a range of applications that include organic and inorganic electrosynthesis, metal ion removal, energy storage, environmental remediation (e.g., precious metal recycling or anodic destruction of organics) and drinking water treatment. Examples of the cell for energy conversion and storage (flow batteries and proton exchange membrane fuel cells) are briefly illustrated. The use of such a flow cell for the characterization of new electrochemical processes and to provide data enabling scale-up is considered.

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A 28-W portable direct borohydride–hydrogen peroxide fuel-cell stack

Cited by 92 publications

References 13 publications

A Self-Supported Direct Borohydride-Hydrogen Peroxide Fuel Cell System

A Self-Supported Direct Borohydride-Hydrogen Peroxide Fuel Cell System

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

The filter-press FM01-LC laboratory flow reactor and its applications

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