Boron substituted carbon nanotubes—How appropriate are they for hydrogen storage?

Sankaran, M.; Viswanathan, B.; Murthy, S. Srinivasa

doi:10.1016/j.ijhydene.2007.07.042

Cited by 92 publications

(39 citation statements)

References 28 publications

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“…The more electron deficient character of nitrogen of h-BN nanoparticles results in a stronger interaction with hydrogen than carbon (CNT) and boron (h-BN). The recent studies on the incorporation of boron in carbon nanotubes enhances the hydrogen storage capacity by about 2 wt% [20] and hollow nitrogen-containing carbon sphere material exhibits a high hydrogen storage capacity of 2.21 wt% at room-temperature under 8 MPa [21]. Weng et al [22] demonstrated that BN porous micro belts exhibit high and reversible hydrogen uptake of 2.3 wt% at 77 K and 1 MPa.…”

Section: Introductionmentioning

confidence: 99%

Hexagonal boron nitride (h-BN) nanoparticles decorated multi-walled carbon nanotubes (MWCNT) for hydrogen storage

2016

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a b s t r a c tHydrogen is considered as the most promising clean energy carrier because of its abundance, environmental friendliness and high conversion efficiency. However, developing safe, compact, light weight and cost-effective hydrogen storage materials is one of the most technically challenging barriers to the widespread use of hydrogen as fuel. The present work reports the hydrogen storage performance of multi-walled carbon nanotubes (MWCNT)/hexagonal boron nitride (h-BN) nanocomposites (MWCNT/h-BN), where ultrasonication method is adopted for the synthesis of the MWCNT/h-BN nanocomposites. Hydrogenation process was carried out using Seiverts-like hydrogenation setup. Characterization techniques such as X-ray Diffraction (XRD), Micro-Raman Spectroscopy, Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDX), Nitrogen adsorptionedesorption isothermal studies (BET), CHN-elemental analysis and Thermogravimetric Analysis (TGA) were used to analyze the samples at various stages of the experiment. A maximum of 2.3 wt% hydrogen storage is achieved in the case of acid treated MWCNTs (A-MWCNT) with 5 wt% of h-BN nanoparticles compared to pure MWCNTs that could store 0.15 wt% only. Moreover the calculated binding energy (0.42 eV) of stored hydrogen of A-MWCNT with 5 wt% of h-BN nanocomposite lies in the recommended range of binding energy (0.2e0.6 eV) for fuel cell applications. The TG study shows that 100% desorption is achieved at the temperature range of 120e410 C and confirms that the prepared hydrogen storage medium will serve effectively in the realm of hydrogen fuel economy in near future.

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Section: Introductionmentioning

confidence: 99%

Hexagonal boron nitride (h-BN) nanoparticles decorated multi-walled carbon nanotubes (MWCNT) for hydrogen storage

2016

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“…The DFT studies for boron modified carbon nanotubes and fullerenes are available (Kim et al 2006;Viswanathan and Sankaran 2008;Sankaran et al 2005Sankaran et al , 2008Sankaran and Viswanathan 2006;Ni et al 2009). However, because of the importance of dispersion forces as leading component of interactions involving H 2 (Lochan and Head-Gordon 2006) one should consider these results with a caution.…”

Section: Quantum Chemical Calculationsmentioning

confidence: 99%

A review of boron enhanced nanoporous carbons for hydrogen adsorption: numerical perspective

Kuchta¹,

Firlej

Roszak

et al. 2010

Adsorption

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We review the current achievements in the numerical studies of adsorption of molecular hydrogen in boron substituted nanoporous carbons. We show that the enhanced attraction of H-2 by boron-substituted all-carbon structures may allow designing new porous materials with modulated capacity for hydrogen adsorption. Such new structures are characterized by modification of energy landscape of adsorbing surfaces extending beyond the vicinity of substituted atom over several graphene carbon sites, and show strong surface heterogeneity. Although the theoretical conception and description of boron-substituted carbons made a considerable progress during the last decade, the preparation of these materials involves tedious procedures and still needs to be improved

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“…Storage of hydrogen is attempted in various approaches involving gas phase storage with compressed hydrogen gas tanks, liquid hydrogen tanks and in solid state materials like metal hydrides, carbon-based materials/high surface area sorbents such as metal-organic frameworks (MOFs) and chemical hydrogen storage using complex hydrides. Among the various options of hydrogen storage, only storage in solid state materials seems to be promising [2]. Carbon Nanotube (CNT) is the most popular nanostructured material which is potential to be hydrogen storage medium due to its high specific surface area [3].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Hidrogen Physisorption Energy by Lithium-doped Carbon Nanotube: A First Principle Study

Nasruddin¹,

Kosasih²,

Supriyadi³

et al. 2015

JOCET

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Abstract-Hydrogen fuel-cell is potential future energy carrier to be implemented on vehicle. However, one of the main problems of its implementation is about how to store Hydrogen in high density at ambient temperature and acceptable pressure. One of the promising storage methods is adsorption on Carbon nanostructured material, one of them is Carbon Nanotube (CNT). However, CNT is still too weak to adsorb Hydrogen gas in ambient temperature. Therefore, many researches have been conducted to find ways to improve Hydrogen physisorption energy on CNT. One of the ways is by doping Lithium cation into CNT. Lithium-cation is expected able to effect electrochemical properties of CNT so that Hydrogen physisorption energy is enhanced. In this study, we performed ab-initio calculations to investigate effect of Lithium-doping on CNT to its Hydrogen physisorption energy. Our research result shows that Lithium-doped CNT have stronger physisorption energy, up to -4.2 kcal/mol, compared to undoped CNT, only -1.2 kcal/mol. Index Terms-Hydrogen storage, CNT, Lithium, Ab initio.

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Boron substituted carbon nanotubes—How appropriate are they for hydrogen storage?

Cited by 92 publications

References 28 publications

Hexagonal boron nitride (h-BN) nanoparticles decorated multi-walled carbon nanotubes (MWCNT) for hydrogen storage

Hexagonal boron nitride (h-BN) nanoparticles decorated multi-walled carbon nanotubes (MWCNT) for hydrogen storage

A review of boron enhanced nanoporous carbons for hydrogen adsorption: numerical perspective

Enhancement of Hidrogen Physisorption Energy by Lithium-doped Carbon Nanotube: A First Principle Study

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