Direct NaBH4/H2O2 fuel cells

Miley, George H.; Luo, Nie; Mather, J. W.; Burton, Rodney L.; Hawkins, Glenn; Gu, Lifeng; Byrd, Ethan; Gimlin, Richard; Shrestha, Prajakti Joshi; Benavides, Gabriel F.; Laystrom, Julia K.; Carroll, David L.

doi:10.1016/j.jpowsour.2006.10.062

Cited by 224 publications

(117 citation statements)

References 11 publications

Supporting

Mentioning

115

Contrasting

Unclassified

Order By: Relevance

“…In recent times, detection of hydrogen peroxide is crucial in metal-hydrogen peroxide semi fuel cell, 15 direct methanolhydrogen peroxide fuel cell 16 and direct borohydride-hydrogen peroxide fuel cell 17 since its reduction rate determines performance of fuel cells. Up to now, humpty numbers of methods are reported for electrocatalytic reduction of H 2 O 2, for instance, spectrometry, 18 fluorimetry 19 and electrochemistry.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Reduction of Hydrogen Peroxide on Silver Nanoparticles Stabilized by Amine Grafted Mesoporous SBA-15

Vinoba¹,

Jeong²,

Bhagiyalakshmi³

et al. 2010

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

Mesoporous SBA-15 was synthesized using tetraethylorthosilicate (TEOS) as the silica source and Pluronic (P123) as the structure-directing agent. The defective Si-OH groups present in SBA-15 were successively grafted with 3-chloropropyltrimethoxysilane (CPTMS) followed by tris-(2-aminoethyl) amine (TAEA) and/or tetraethylenepentamine (TEPA) for effective immobilization of silver nanoparticles. Grafting of TAEA and/or TEPA amine and immobilization of silver nanoparticles inside the channels of SBA-15 was verified by XRD, TEM, IR and BET techniques. The silver nanoparticles immobilized on TAEA and /or TEPA grafted SBA-15 was subjected for electrocatalytic reduction of hydrogen peroxide (H2O2). The TEPA stabilized silver nanoparticles show higher efficiency for reduction of H2O2 than that of TAEA, due to higher number of secondary amine groups present in TEPA. The amperometric analysis indicated that both the Ag/SBA-15/TAEA and Ag/SBA-15/TEPA modified electrodes required lower over-potential and hence possess high sensitivity towards the detection of H2O2. The reduction peak currents were linearly related to hydrogen peroxide concentration in the range between 3 × 10 -4 M and 2.5 × 10 -3 M with correlation coefficient of 0.997 and detection limit was 3 × 10 -4 M.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Reduction of Hydrogen Peroxide on Silver Nanoparticles Stabilized by Amine Grafted Mesoporous SBA-15

Vinoba¹,

Jeong²,

Bhagiyalakshmi³

et al. 2010

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

“…1,2 Indeed, this technology allows to use a large panel of fuels instead of pure hydrogen, such as sodium borohydride (and its derivatives, like borane-based chemical compounds) or hydrazine, which reduces the fuel transport and storage issues. Moreover, although platinum and palladium catalysts have already shown interesting performances for DLAFC applications, [8][9][10][11][12][13][14][15] because many complex reactions exhibit faster kinetics in alkaline than in acidic medium, DLAFCs are also compatible with the use of platinum-free catalysts. 16,17 These two advantages reduce the economic impact of the DLAFC technology, as recently demonstrated for direct hydrazine hydrate fuel cells.…”

mentioning

confidence: 99%