Characterization of thermochemical properties of Al nanoparticle and NiO nanowire composites

Wen, John Z.; Ringuette, Sophie; Bohlouli-Zanjani, Golnaz; Hu, Anming; Nguyen, Ngoc Ha; Persic, John; Petre, Cătălin Florin; Zhou, Yang

doi:10.1186/1556-276x-8-184

Cited by 36 publications

(25 citation statements)

References 49 publications

(43 reference statements)

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“…In addition, Al/NiO nanomultilayer redox reaction shows its advantage among the vast range of Al/metallic oxide reactions, which have been confirmed by the investigation of Al/metallic oxide nanocomposites such as nanowire [18,19] and nanohoneycomb [20]. It is well known that the coefficient of heat conduction, elements diffusivity, and grain boundary in nanomultilayers are mainly influenced by the film interfaces existing in nanomultilayers and deposition conditions, which can enhance the interfacial contact area.…”

Section: Introductionmentioning

confidence: 82%

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Yan

Shi

Jiang

et al. 2015

Journal of Nanomaterials

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The redox reaction between Al and metallic oxide has its advantage compared with intermetallic reaction and Al/NiO nanomutlilayers are a promising candidate for enhancing the performance of energetic igniter. Al/NiO nanomutlilayers with different modulation periods are prepared on alumina substrate by direct current (DC) magnetron sputtering. The thicknesses of each period are 250 nm, 500 nm, 750 nm, 1000 nm, and 1500 nm, respectively, and the total thickness is 3 m. The X-ray diffraction (XRD) and scanning electron microscope (SEM) results of the as-deposited Al/NiO nanomutlilayers show that the NiO films are amorphous and the layered structures are clearly distinguished. The X-ray photoelectron spectroscopy (XPS) demonstrates that the thickness of Al 2 O 3 increases on the side of Al monolayer after annealing at 450 ∘ C. The thermal diffusion time becomes greater significantly as the amount of thermal boundary conductance across the interfaces increases with relatively smaller modulation period. Differential scanning calorimeter (DSC) curve suggests that the energy release per unit mass is below the theoretical heat of the reaction due to the nonstoichiometric ratio between Al and NiO and the presence of impurities.

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Section: Introductionmentioning

confidence: 82%

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Yan

Shi

Jiang

et al. 2015

Journal of Nanomaterials

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“…This finding impliest hat Co 3 O 4 /Al MIC can rapidly react and release heat below the melting point of Al (660 8C). In comparison with the peak temperature of Fe 2 O 3 /Al at 588 8C and Al/CuOa t5 50 8C, al ower peak temperature of 520 8C was obtained from the Co 3 O 4 /Al MIC, as showni nF igure 4a.T he finding suggests that Co 3 O 4 /Al has al ow reaction temperature, which is benefit for ignition of MICs [16,17].T he outputs of heat is 2689 Jg…”

Section: Thermal Property and Xrd Of Al/co 3 O 4 After Reactionmentioning

confidence: 94%

Large‐Scale Synthesis of a Porous Co₃O₄ Nanostructure and Its Application in Metastable Intermolecular Composites

Wang

Qiao

Shen

et al. 2015

Propellants Explo Pyrotec

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1IntroductionCompared with conventional energetic materials, metastable intermolecular composites (MICs) exhibit improvedp erformance during energyr elease and ignition.M ICs may be applied in actuation, ignition, propulsion, welding,f luidic, and electro-explosive devicesa tb oth the micro and nanoscales. MICs are preparedb ym ixing nanoparticleso fm etallic oxides (MoO 3 ,C uO, Fe 2 O 3 ,a nd Bi 2 O 3 )w ith aluminum [1][2][3][4].S everal methods have been employed to realizeM ICs, including physical mixing, sol-gel,s putteringo fm ultilayer foils, aero-gel, molecular self-assembly [5][6][7][8][9].W hile each method has its merits,s everal disadvantages have also been obtained. Thus, developing novel, facile, and scalable methods to synthesize MICs with homogeneityi sa ni mportant endeavor.One-dimensional( 1D) nanowires have been used to obtain uniform structure of metal oxide/Al core-shells structure [10][11][12].S uch an approach can improve the homogeneity of the final material and control the fuel/oxidizer interfacial contact area, thereby advancing the performance of the nanocomposites. This approach, which is fully compatible with microelectromechanical systems( MEMS) technology,p rovidesa ne fficient means of producing siliconbased MEMSt oa chieve functional nanoenergetics-on-achip (NoC). NoC is considered essential for many applications of MICs. Transition-metal oxide (Co 3 O 4 )n anostructures have received significant research attention becauseo f their wide range of potentiala pplications. The Al/Co 3 O 4 system has ah igh theoretical heat of reactiono f4 232 Jg Considering the above, we investigated the direct synthesis of porous Co 3 O 4 nanostructure on as ilicon substrate using as impleh ydrothermal approach in combination with heat treatment. The nanostructured Co 3 O 4 showsc omplex structure composedo fn anosheets forming ap ore-network architecture. Then, Al/Co 3 O 4 based MICs were synthesized throughd eposited Al onto the Co 3 O 4 via thermale vaporation. The heat of reaction of Al/Co 3 O 4 was investigated by differential scanning calorimetry.T he exothermic reaction before Al melting was greatly enhanced by the Co 3 O 4 nanostructures.T he facile method can be used to fabricate Al/Co 3 O 4 based MICs on as ilicon substrate, which is very convenient for integrating MICsw ith silicon-basedm icroelectromechanical systems to achieve functionaln anoenergetics-on-a-chip.Abstract:T hree-dimensional nanostructured porous Co 3 O 4 was synthesized on as ilicon substratev ia ah ydrothermal route in conjunction with annealing treatment. The structure and morphology of the obtained Co 3 O 4 samples were systemically examined using field-emission scanning electron microscopy and X-ray diffraction. The Co 3 O 4 structures were composed of nanosheets forming ap ore-network architecture that promoted Al penetrationi nto its inner regions during deposition resulting in enhanced interfacial contact area, which significantly improve metastable intermolecularc omposites (MICs) burning rate and the release of ...

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“…The gas generated by thermite reaction is mainly composed of the vapors of metals, the elemental oxygen from the oxidizer and other gaseous reaction products [19].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, there were some investigations on the preparation and properties of NiO/Al nanothermite [18,19,22]. In the literature, the composite of Al nanoparticles (Al-NPs) and NiO nanowires have been synthesized through ultrasonic mixing method, and the influence of NiO mass ratio over Al-NPs are widely discussed [19].…”

Section: Introductionmentioning

confidence: 99%

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3D ordered macroporous NiO/Al nanothermite film with significantly improved higher heat output, lower ignition temperature and less gas production

Zhang

Shen

et al. 2016

Materials & Design

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The performances of nanothermites largely rely on a meticulous design of nanoarchitectures and the close assembly of components. Three-dimensionally ordered macroporous (3DOM) NiO/Al nanothermite film has been successfully fabricated by integrating colloidal crystal template (CCT) method and controllable magnetron sputtering. The as-prepared NiO/Al film shows uniform structure and homogeneous dispersity, with greatly improved interfacial contact between fuel and oxidizer at the nanoscale. The total heat output of 3DOM NiO/Al nanothermite has reached 2461.27 J·g −1 at optimal deposition time of 20 min, which is significantly more than the values of other NiO/Al structural systems that have been reported before. Intrinsic reduced ignition temperature (onset temperature) and less gas production render the wide applications of 3DOM NiO/Al nanothermite. Moreover, 2 this design strategy can also be readily generalized to realize diverse 3DOM structured nanothermites.

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Characterization of thermochemical properties of Al nanoparticle and NiO nanowire composites

Cited by 36 publications

References 49 publications

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Large‐Scale Synthesis of a Porous Co₃O₄ Nanostructure and Its Application in Metastable Intermolecular Composites

3D ordered macroporous NiO/Al nanothermite film with significantly improved higher heat output, lower ignition temperature and less gas production

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Characterization of thermochemical properties of Al nanoparticle and NiO nanowire composites

Cited by 36 publications

References 49 publications

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Fabrication and Characterization of Al/NiO Energetic Nanomultilayers

Large‐Scale Synthesis of a Porous Co3O4 Nanostructure and Its Application in Metastable Intermolecular Composites

3D ordered macroporous NiO/Al nanothermite film with significantly improved higher heat output, lower ignition temperature and less gas production

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Large‐Scale Synthesis of a Porous Co₃O₄ Nanostructure and Its Application in Metastable Intermolecular Composites