Hydrogen storage properties of nanocrystalline Pt dispersed multi-walled carbon nanotubes

Reddy, Arava Leela Mohana; Ramaprabhu, Sundara

doi:10.1016/j.ijhydene.2007.04.048

Cited by 67 publications

(32 citation statements)

References 44 publications

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“…This result was in good agreement with that observed in Ref. [8], because PANI does not absorb hydrogen. In addition, it was obviously seen that the plateau slopes of AB 3 /PANI composites became smaller with the temperature increased from 25 • C to 100 • C. Table 2 shows the hydrogen desorption plateau pressures of AB 3 /PANI-H at 25, 50, 80 and 100 • C. It can be seen from Table 2 that when the PANI was added into the AB 3 alloy, the hydrogen desorption plateau pressure of AB 3 -H decreased first, and then increased with PANI concentration changed from 0 to 4 wt%.…”

Section: P-c-t Isothermssupporting

confidence: 93%

“…And then, the experimental results of Isobe and Yamauchi et al [5,6] showed that addition of certain polymer could increase the hydrogen absorption capacity of Pt or Pd nanoparticles. PANI, as a normal polymer, does not have the hydrogen storage capacity itself [7], but it could accelerate the hydrogen absorption kinetics of AB 2 alloy [8]. So it would be interesting to systematically study the effect of PANI on hydrogen absorption-desorption properties of AB 3 alloy, a typical hydrogen storage alloy.…”

Section: Introductionmentioning

confidence: 99%

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Effect of polyaniline on hydrogen absorption–desorption properties and discharge capacity of AB3 alloy

Chu

et al. 2007

International Journal of Hydrogen Energy

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Section: P-c-t Isothermssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of polyaniline on hydrogen absorption–desorption properties and discharge capacity of AB3 alloy

Chu

et al. 2007

International Journal of Hydrogen Energy

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“…In addition to sensing applications, there is wide interest in the potential use of nanoparticle-loaded SWNTs for H 2 storage [168][169][170]. Hydrogen uptake of up to 2.8% was achieved using Ni nanoparticle-loaded MWNTs [168].…”

Section: Chemical Sensorsmentioning

confidence: 99%

Preparation and modification of carbon nanotubes: Review of recent advances and applications in catalysis and sensing

Vairavapandian¹,

Vichchulada²,

Lay³

2008

Analytica Chimica Acta

277

146

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“…A very important factor influencing the electrode activity is also the physicochemical property of the electrode support/current collector, which should represent the high specific surface area, good electrical conductivity, and low weight. It is well known that metals such as platinum, palladium, and their alloys exhibit high activity in the processes of hydrogen sorption/desorption [6][7][8][9][10][11][12][13]. Recently, an increasing attention has been paid on palladium and palladium-based electrodes due to their high electroactivity and lower price in comparison with platinum.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the reactions of hydrogen sorption/desorption and methanol oxidation on bifunctional Ni/Pd electrode in alkaline solution

Skowroński

Rozmanowski

2012

J Solid State Electrochem

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The present paper is aimed at studying the influence of the hydrogen sorption/desorption process occurring on the layered nickel-palladium (Ni/Pd) electrode on the kinetics of the reaction of methanol oxidation in strong alkaline KOH solution. The electrodes were prepared by chemical deposition of a thin layer of porous palladium on a nickel foam support. A scanning electron microscope was used for studying the morphology of both the nickel support and the porous palladium layer. The mechanism of the anodic desorption of hydrogen changes depending on whether or not 6 M KOH electrolyte is admixed with methanol. It was shown that, in the first cycle of the cyclic voltammetry (CV) measurements, the anodic peak current and peak charge related to the oxidative desorption of hydrogen significantly decrease due to the presence of methanol in KOH. This effect is attributed to the obstacles in hydrogen sorption due to the formation of a passivating layer on the Pd surface composed of both adsorbed methanol molecules and the intermediate products involving adsorbed CO. On the other hand, hydrogen desorbing from Pd electrode exerts influence on the kinetics of the reaction of methanol oxidation. Ni/Pd electrode undergoes considerable reactivation due to the potentiostatic saturation with hydrogen at −1.1 V, followed by the ease in hydrogen desorption. The CV measurements proved that, after such a treatment, the peak of hydrogen desorption partially overlaps the double peak of methanol oxidation and, in consequence, the rate of methanol oxidation is enhanced. The positive effect of hydrogen releasing from the electrode on the kinetics of the reaction of methanol oxidation is ascribed to the anti-poison behavior consisting in the reaction of hydrogen radicals with intermediates adsorbed on the Pd surface.

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Hydrogen storage properties of nanocrystalline Pt dispersed multi-walled carbon nanotubes

Cited by 67 publications

References 44 publications

Effect of polyaniline on hydrogen absorption–desorption properties and discharge capacity of AB3 alloy

Effect of polyaniline on hydrogen absorption–desorption properties and discharge capacity of AB3 alloy

Preparation and modification of carbon nanotubes: Review of recent advances and applications in catalysis and sensing

Relationship between the reactions of hydrogen sorption/desorption and methanol oxidation on bifunctional Ni/Pd electrode in alkaline solution

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