Pyrolysis of Decaborane

Siegel, Bernard; Mack, Julius L.

doi:10.1021/j150561a042

Cited by 13 publications

(4 citation statements)

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“…It corresponds to the removal of six hydrogen atoms from decaborane. In the pyrolysis of decaborane, it is known that the hydrogen is removed at temperatures greater than 200°C, and non-volatile high-molecular-weight boron hydrides remain [33]. In the case of a mixed decaborane and carbon compound, decaborane readily reacts with carbon at 170-238°C, and a large uptake of carbon is observed [34].…”

Section: Ftir and Xps Measurementsmentioning

confidence: 99%

Phosphorus- and boron-doped hydrogenated amorphous silicon films prepared using vaporized liquid cyclopentasilane

et al. 2015

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a b s t r a c tA simple, inexpensive method for fabricating a hydrogenated amorphous silicon (a-Si:H) film using thermal chemical vapor deposition from cyclopentasilane (CPS) at atmospheric pressure with a substrate temperature of 370°C is described. The reactant gas was generated from liquid CPS by vaporization in the deposition chamber. The vaporized CPS gas was transformed immediately into a-Si:H film on a heated substrate. The a-Si:H films could be doped either n-or p-type by dissolving appropriate amounts of white phosphorus or decaborane, respectively, in the liquid CPS before vaporization. This process allows deposition of doped a-Si:H films of photovoltaic device-quality without the need for handling, storage, or transportation of large amounts of gaseous reactants.

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Section: Ftir and Xps Measurementsmentioning

confidence: 99%

Phosphorus- and boron-doped hydrogenated amorphous silicon films prepared using vaporized liquid cyclopentasilane

et al. 2015

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“…The decomposition of heavier boron hydrides, i.e. decaborane, was reported to occur above 200°C [29,30].…”

Section: Comparison Between the Thermal And The Catalytic Decompositimentioning

confidence: 99%

Catalyst Deactivation in Diborane Decomposition

et al. 2005

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“…It is known to decompose on surfaces at temperatures as low as 200 ºC to give boron films [11,15,18,19]. By adjusting the experimental procedure, we find that decaborane can also serve as a convenient starting material for the laboratory-scale preparation of boron nanoparticles.…”

Section: Ii11 Synthesis and Functionalization Of Boron Nanoparticlesmentioning

confidence: 95%

“…Boron nanoparticles have also been obtained by reduction of boron trihalides with H 2 [5] or sodium naphthalenide [8]. Boron nanowires [9,10] and thin films [11][12][13][14][15][16][17][18][19][20] have been grown by a variety of methods.…”

Section: Ii11 Synthesis and Functionalization Of Boron Nanoparticlesmentioning

confidence: 99%

Nano Engineered Energetic Materials (NEEM)

Dlott¹,

Eden²,

Girolami³

et al. 2011

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. The ARO Nano Engineered Energetic Materials (NEEM) MURI program has been exploring new methodologies for developing energetic material formulations with control of all constituents over a wide range of length scales from 1 nm to 1 mm and larger and employing the latest techniques in molecular self-assembly and supramolecular chemistry for synthesizing and assembling NEEMs. The synthetic efforts have been guided by theoretical calculations and dynamic performance testing methodologies that also operate on all length scales. This final report ABSTRACTThe ARO Nano Engineered Energetic Materials (NEEM) MURI program has been exploring new methodologies for developing energetic material formulations with control of all constituents over a wide range of length scales from 1 nm to 1 mm and larger and employing the latest techniques in molecular self-assembly and supramolecular chemistry for synthesizing and assembling NEEMs. The synthetic efforts have been guided by theoretical calculations and dynamic performance testing methodologies that also operate on all length scales. This final report provides a summary of the accomplishments. In particular, new methods to generate metal nanoclusters were developed that are stabilized against environmental degradation while preserving their high energy content. Rapid expansion supercritical solution processes were developed and applied to synthesize nanosized particulate oxidizers and energetic oxidizer shell/fuel core composites. Surface science and experimental chemistry methods were applied to study the structures and energy releasing reaction pathways of NEEMs. Unique diagnostic capabilities were developed and applied to study the fundamental mechanisms that underlie NEEM dynamic performance. Combustion mechanisms of various NEEMs, including nanothermites and nanoparticulate fuel/liquid oxidizer systems, were experimentally analyzed. The reactive and thermal characteristics of NEEMs were studied using large (billion atoms) multiscale simulations that couple quantum-mechanical calculations to molecular dynamics calculations. In particular, the stability, structure and energetics of metallic nanoparticles with a special focus on the relationships between particle size, shape and excess surface free energy were studied. A unified theory of ignition and combustion of aluminum particles for a wide range of sizes, from nano to meso scales was established. . 12, 777-787 (2010 (b) Papers published in non-peer-reviewed journals or in conference proceedings (N/A for none)18.00 Number of Papers published in peer-reviewed journals:Number of Papers published in non peer-reviewed journals:1. USC group, "Multibillion-atom simulations of nano-mechano-chemistry on petaflops computers," First

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Pyrolysis of Decaborane

Cited by 13 publications

References 0 publications

Phosphorus- and boron-doped hydrogenated amorphous silicon films prepared using vaporized liquid cyclopentasilane

Phosphorus- and boron-doped hydrogenated amorphous silicon films prepared using vaporized liquid cyclopentasilane

Catalyst Deactivation in Diborane Decomposition

Nano Engineered Energetic Materials (NEEM)

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