Performance improvement of a micro borohydride fuel cell operating at ambient conditions

Liu, B.H.; Li, Z.P.; Arai, K.; Suda, S.

doi:10.1016/j.electacta.2005.01.018

Cited by 139 publications

(53 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…higher potentials are achieved at a fixed current density. The anode potentials fall significantly, at a fixed current density, with increasing temperature as a result of improved borohydride oxidation kinetics [15] and increased mass transport [13,16]. In addition, as temperature was increased, the conductivities of NaOH and NaBH 4 increased, which also had a favourable influence on anode performance.…”

Section: Influence Of Temperaturementioning

confidence: 94%

A parametric study of a platinum ruthenium anode in a direct borohydride fuel cell

et al. 2007

View full text Add to dashboard Cite

Data on the performance of a direct borohydride fuel cell (DBFC) equipped with an anion exchange membrane, a Pt-Ru/C anode and a Pt/C cathode are reported. The effect of oxidant (air or oxygen), borohydride and electrolyte concentrations, temperature and anode solution flow rate is described. The DBFC gives power densities of 200 and 145 mW cm -2 using ambient oxygen and air cathodes respectively at medium temperatures (60°C). The performance of the DBFC is very good at low temperatures (ca. 30°C) using modest catalyst loadings of 1 mg cm -2 for anode and cathode. Preliminary data indicate that the cell will be stable over significant operating times.

show abstract

Section: Influence Of Temperaturementioning

confidence: 94%

A parametric study of a platinum ruthenium anode in a direct borohydride fuel cell

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Cell voltage and power density vs. current density for a DBFC using a cationic ( ) Nafion 115 and an anionic ( ) Asahikasei A-501SB membrane at 25 o C. Ni + PTFE powders pressed on Ni foam as anode and air cathode made of Pt or Ag supported on carbon black(40). ( ) Anionic membrane of thickness 70 µm was supplied by the University of Cranfield, UK(35) with nano-particulate bimetallic anode Au/Pt and cathode MnO 2 in a tubular cell configuration.…”

mentioning

confidence: 99%

Recent Developments in Borohydride Fuel Cells

et al. 2008

View full text Add to dashboard Cite

Developments in direct borohydride fuel cells (DBFC) are considered together with electrolyte stability and the choice of membrane and electrode materials. The cyclic voltammetry of borohydride oxidation was studied at three electrodes: a) gold on carbon, Au/C, b) gold on titanate nanotubes, Au/TiN and (c) gold foil. Similar currents were observed from the three electrodes. A DBFC in a single, 2-and 4-bipolar cell configuration with Au/C anode and Pt/C cathode produced 2.2, 3.2 and 9.6 W showed cell voltages of 1.06, 0.81 and 3 V, respectively. In another single cell, the reduction of peroxide on a Pd/Ir coated microfibrous carbon cathode was catalytically more active than a platinised-carbon one. The maximum power density achieved was 78 mW cm -2 at a cell voltage of 1.09 V. The need for further research is highlighted, particularly into new electrocatalyst materials.

show abstract

“…The composite modified with 3% of silicon exhibits the highest equivalent series resistance, which is related to the lowest conductivity value of pure silicon powder ( Table 1). The diameter of semicircles at low frequencies is attributed to the charge transfer resistance of borohydride oxidation reaction [16,17]. It should be noted that the composite material containing 3% of carbon nanotubes exhibit slower charge transfer resistance than those using graphite or silicon powder.…”

Section: Resultsmentioning

confidence: 99%

The modification of anode material for direct borohydride fuel cell

Graś

Sierczyńska

Lota

et al. 2016

Ionics

View full text Add to dashboard Cite

The direct borohydride fuel cell (DBFC) is a promising device that converts chemical energy into electricity by electrochemical reactions. This type of power source is technically more simple than traditional fuel cells, because it does not require any hydrogen container and noble metals. Hydrogen evolution during hydrolysis can be inhibited by modification of anode materials. Extensive studies are focused on various specific electrocatalysts and their impact on oxidation and hydrolysis of borohydride. The aim of the study is to determine the effect of anode material composition using borohydride as a fuel. In order to enhance the utilization of borohydride fuel, AB 5 -type alloy (LaMnNi 3.55 Al 0.30 Mn 0.40 Co 0.75 ) was modified by adding Si or two kinds of carbon materials using the ball milling method. The most proper electrolyte was selected. The physical and electrochemical properties of anode materials were evaluated by scanning electron microscopy (SEM), cyclic voltammetry, chronopotentiometric measurements and electrochemical impedance spectroscopy. Studies showed that graphite was the best additive to anode material due to its density, compact structure and improvement of conductivity.

show abstract

Performance improvement of a micro borohydride fuel cell operating at ambient conditions

Cited by 139 publications

References 12 publications

A parametric study of a platinum ruthenium anode in a direct borohydride fuel cell

A parametric study of a platinum ruthenium anode in a direct borohydride fuel cell

Recent Developments in Borohydride Fuel Cells

The modification of anode material for direct borohydride fuel cell

Contact Info

Product

Resources

About