Three-dimensionally Ordered Macroporous Structure Enabled Nanothermite Membrane of Mn2O3/Al

Zheng, Guoqiang; Zhang, Wenchao; Shen, Ruiqi; Ye, Jia-Hai; Zhichun, Qin; Chao, Yimin

doi:10.1038/srep22588

Cited by 30 publications

(14 citation statements)

References 39 publications

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“…The diffraction peaks represented by the (#) located at angle 23.01, 30.68, 36.83, and 53.58 degrees correspond to the Mn2O3 planes of the (211), (222), (400), and (440) orientations (JSPDS No. 41-1442) [ 53 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS2 Nanoflower

et al. 2022

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The fascinating features of 2D nanomaterials for various applications have prompted increasing research into single and few-layer metal dichalcogenides nanosheets using improved nanofabrication and characterization techniques. MoS2 has recently been intensively examined among layered metal dichalcogenides and other diverse transition metal-based materials, that have previously been studied in various applications. In this research, we report mixed-phase Mn-doped MoS2 nanoflowers for supercapacitor performance studies. The confirmation of the successfully prepared Mn-doped MoS2 nanoflowers was characterized by XRD, SEM-EDS, RAMAN, and BET research techniques. The mixed-phase of the as-synthesized electrode material was confirmed by the structural changes observed in the XRD and RAMAN studies. The surface area from the BET measurement was calculated to be 46.0628 m2/g, and the adsorption average pore size of the electrode material was 11.26607 nm. The electrochemical performance of the Mn-doped MoS2 electrode material showed a pseudo-capacitive behavior, with a specific capacitance of 70.37 Fg−1, and with a corresponding energy density of 3.14 Whkg−1 and a power density of 4346.35 Wkg−1. The performance of this metal-doped MoS2-based supercapacitor device can be attributed to its mixed phase, which requires further optimization in future works.

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Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS2 Nanoflower

et al. 2022

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“…After melting of Al film, the melted Al reacted with a MnO 2 beneath the MnO 2 nano-films at an onset temperature of about 830 °C. This exothermal reaction occurred by a liquid-solid diffusion mechanism [32, 33]. The heat releases of MnO 2 /Al-132 nm and MnO 2 /Al-400 nm at a heating rate of 20 °C min −1 were 1241.0 and 1659.0 J/g, respectively.…”

Section: Resultsmentioning

confidence: 99%

Precisely Controlled Reactive Multilayer Films with Excellent Energy Release Property for Laser-Induced Ignition

et al. 2019

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Three types of reactive multilayer films (RMFs) were integrated to the energetic flyer plates (EFPs) by depositing TiO 2 , MnO 2 , and CuO onto aluminum films with different modulation periods using magnetron sputtering technology in this study. The effects of the laser ignition property and laser reflectivity on the RMFs and the thermal behavior of the RMFs were analyzed and compared with those of a single-layer Al film. A high-speed video, photonic Doppler velocimetry (PDV), and a thermal analysis were utilized to characterize the flame morphology, EFP velocity, and chemical thermal behavior, respectively. The surface reflectivities of the TiO 2 /Al, MnO 2 /Al, and CuO/Al layers were measured using laser reflectivity spectrometers. The results showed that RMFs with smaller modulation periods exhibited excellent laser ignition performances, and EFP with MnO 2 /Al had the best performance. These RMFs achieved flame durations of 120–220 μs, maximum flame areas of 7.523–11.476 mm 2 , and reaction areas of 0.153–0.434 mm 2 (laser-induced with 32.20 J/cm 2 ). Flyer velocities of 3972–5522 m/s were obtained in the EFPs by changing the material and modulation period of the RMFs. Furthermore, the rate of the chemical reaction and laser energy utilization were also enhanced by reducing the modulation period and using different material. This behavior was consistent with a one-dimensional nanosecond-laser-induced plasma model. The RMFs of MnO 2 /Al exhibited the highest level of energy release and promoted laser energy utilization, which could better improve the performance of laser ignition for practical application. Graphical Abstract

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“…Our previous study revealed that magnetron sputtering offers controllable coverage 10 density of Al through adjusting deposition time [34]. Fig.…”

Section: Morphology Characterizationsmentioning

confidence: 99%

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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Three-dimensionally Ordered Macroporous Structure Enabled Nanothermite Membrane of Mn2O3/Al

Cited by 30 publications

References 39 publications

Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS2 Nanoflower

Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS2 Nanoflower

Precisely Controlled Reactive Multilayer Films with Excellent Energy Release Property for Laser-Induced Ignition

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

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