Preparation and formation mechanism of few-layer black phosphorene through liquid pulsed discharge

Qiao, Jinchao; Gao, Xin; Zhong, Longhai; Zhou, Qiang; Qiao, Rufei; Li, Jianjun; Wang, Tianchu; Song, Qiuzhi; Chen, Pengwan

doi:10.1039/d3tc00095h

Cited by 4 publications

(2 citation statements)

References 62 publications

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“…There is no O element detected on PR nanosheets, suggesting that there is no oxidation occurring in PR nanosheets. The X-ray powder diffraction (XRD) pattern of bulk-layered BP shows four characteristic diffraction peaks at 16.5, 25.9, 34.8, and 55.3° corresponding to the (020), (021), (040), and (042) planes of the BP crystal according to the standard ICDD-PDF 76-1963 (Figure h) . These characteristic diffractions become weak after exfoliation, demonstrating a significant decrease in the thickness of the PR nanosheets.…”

Section: Resultsmentioning

confidence: 99%

“…The X-ray powder diffraction (XRD) pattern of bulk-layered BP shows four characteristic diffraction peaks at 16.5, 25.9, 34.8, and 55.3°c orresponding to the (020), ( 021), (040), and (042) planes of the BP crystal according to the standard ICDD-PDF 76-1963 (Figure 1h). 50 These characteristic diffractions become weak after exfoliation, demonstrating a significant decrease in the thickness of the PR nanosheets. These results demonstrate the successful formation of PR nanosheets with an ultrathin nanostructure through ultrasonication-assisted liquid exfoliation.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Eco-Friendly Flame-Retardant Phase-Change Composite Films Based on Polyphosphazene/Phosphorene Hybrid Foam and Paraffin Wax for Light/Heat-Dual-Actuated Shape Memory

Zhou,

Liu,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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Multiactuated shape memory materials are a class of promising intelligent materials that have received great interest in the fields of self-healing, anticounterfeiting, biomedical, soft robotic, and smart thermal management applications. To obtain a light/heat-dual-actuated shape memory material for thermal management applications in fire safety, we have designed a type of halogen-free flame-retardant phase-change composite film based on polyaryloxyphosphazene (PDAP)/phosphorene (PR) hybrid foam as a support material and paraffin wax (PW) as a phase-change material (PCM). PDAP was synthesized as a flexible foam matrix through the ring-opening polymerization of hexachlorocyclotriphosphazene, followed by a substitution reaction of aryloxy groups. The porosity of the PDAP foam is improved by introducing PR nanosheets, facilitating a high latent heat capacity of the PDAP−PR/PW composite films for thermal management applications. The PDAP−PR/PW composite films can implement rapid shape recovery within 65 s in the heating process, which is much shorter than that of the corresponding film without PR nanosheets (185 s). Furthermore, the PDAP−PR/PW composite films also exhibit light-actuated shape memory behavior thanks to their good solar-tothermal energy absorption and conversion contributed by PR nanosheets as a highly effective photothermal material. More importantly, the presence of PR nanosheets imparts an excellent flame-retardant property to the PDAP−PR/PW composite films. The PDAP−PR/PW composite film can be self-extinguished within 2 s after the flame. Through an innovative integration of flexible polyphosphazene foam, PR nanosheets, and solid−liquid PCM to obtain a sensitive actuating response to light and heat, this study offers a new approach for developing multiactuated and eco-friendly flame-retardant shape memory materials to meet the requirement of applications with a requirement of fire safety in soft actuators, thermal therapy, control devices, and so on.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Eco-Friendly Flame-Retardant Phase-Change Composite Films Based on Polyphosphazene/Phosphorene Hybrid Foam and Paraffin Wax for Light/Heat-Dual-Actuated Shape Memory

Zhou,

Liu,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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Electrochemical Exfoliation and Growth of Nickel–Cobalt Layered Double Hydroxides@Black Phosphorus Hetero‐Nanostructure Textiles for Robust Foldable Supercapacitors

Zheng,

Zhang,

Man

et al. 2024

Adv Funct Materials

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Advanced innovation of flexible electrode with adequate redox activity and stably mechanical endurance that promotes charges kinetic migration and faradaic storage is pivotal for textile‐based supercapacitors (T‐SCs). Herein, this study reports a high‐performance T‐SCs electrode based on nickel–cobalt layered double hydroxides@black phosphorus (NiCo‐LDHs@BP) on a conductive silk (c‐silk) textile (NiCo‐LDHs@BP/c‐silk). Under negative voltage‐induced electrochemical exfoliation, the Ni2+ and Co2+ are embedded into bulk BP framework to form exfoliated BP nanosheets, and the NiCo‐LDHs are in situ grown within the BP networks, generating 3D NiCo‐LDHs@BP hetero‐nanostructure. Significantly, the NiCo‐LDHs@BP exhibits a large space‐charge area, enhanced adsorption energy for OH− and accelerated charges transfer/storage as confirmed using density functional theory calculations. Additionally, the T‐SCs electrode is fabricated by loading the blended NiCo‐LDHs@BP, sericin, and carbon nanotubes on fibroin textile via a silk reconstruction strategy, producing large area production, superior mechanical flexibility, and impressive electrochemical performance. The resultant NiCo‐LDHs@BP/c‐silk electrode exhibits large specific capacitance of 1291.3 F g−1 and considerable rate capacity in 1 M KOH electrolyte. Furthermore, the flexible solid‐state asymmetric T‐SCs deliver high specific areal energy density of 279.6 µWh cm−2 and robust folding capability (85.6% capacitance retention after 5000 folding cycles), which successfully power wearable watch and heart rate meter devices.

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3D printable, stretchable, anti-freezing and rapid self-healing organogel-based sensors for human motion detection

Zhang,

Wang,

Wei

et al. 2024

Journal of Colloid and Interface Science

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Preparation and formation mechanism of few-layer black phosphorene through liquid pulsed discharge

Abstract: Black phosphorene has received great attention owing to its outstanding properties, such as unique layer-dependent properties in the band gap. In this study, a unique mechanical exfoliation route, liquid-electric effect,...

Cited by 4 publications

References 62 publications

Eco-Friendly Flame-Retardant Phase-Change Composite Films Based on Polyphosphazene/Phosphorene Hybrid Foam and Paraffin Wax for Light/Heat-Dual-Actuated Shape Memory

Eco-Friendly Flame-Retardant Phase-Change Composite Films Based on Polyphosphazene/Phosphorene Hybrid Foam and Paraffin Wax for Light/Heat-Dual-Actuated Shape Memory

Electrochemical Exfoliation and Growth of Nickel–Cobalt Layered Double Hydroxides@Black Phosphorus Hetero‐Nanostructure Textiles for Robust Foldable Supercapacitors

3D printable, stretchable, anti-freezing and rapid self-healing organogel-based sensors for human motion detection

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