Moisture repelling perovskite nanowires for higher stability in energy applications

Rajbhar, Manoj K.; Das, Pritam; Satpati, Biswarup; Möller, W.; Ramgir, Niranjan S.; Chatterjee, Shyamal

doi:10.1016/j.apsusc.2020.146683

Cited by 15 publications

(13 citation statements)

References 33 publications

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“…In our system, a reverse trend is observed when Cu/Cu 2 O NC coating is exposed to UV radiation. Usually wetting of the surface is controlled by either surface topography such as roughness or the surface chemical nature or by both . In order to find out the cause of such exhilarating observation, at first the surface morphology of the UV-exposed samples was checked, and no significant change in the morphology of the NC sample after UV exposure is observed when studied under FESEM (Figure (a)) and TEM (see Figure (b)).…”

Section: Resultsmentioning

confidence: 99%

Alteration of Wettability of Copper–Copper Oxide Nanocomposites through Cu–O Bond Breaking Swayed by Ultraviolet and Electron Irradiation

Das

Giri²,

Manju

et al. 2021

Langmuir

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Converting a nonwetting surface to a highly wetting one, aided by ultraviolet radiation, is well explored. Here, in this work, we show just the reverse behavior of a copper–copper oxide nanocomposite surface where ultraviolet radiation turned the superhydrophilic surface to a superhydrophobic one. This observation is explained both experimentally and theoretically using first-principles density functional theory-based calculations considering the metal–oxygen (Cu–O) bond breaking and related change in surface chemistry. This observation has further been corroborated with electron irradiation on the same nanocomposite material. To the best of our knowledge, for the first time, we show that the radiation-induced breaking of the copper–oxygen bond makes the nanostructure surface energetically unfavorable for water adsorption.

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Section: Resultsmentioning

confidence: 99%

Alteration of Wettability of Copper–Copper Oxide Nanocomposites through Cu–O Bond Breaking Swayed by Ultraviolet and Electron Irradiation

Das

Giri²,

Manju

et al. 2021

Langmuir

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“…Such low-energy ion induced defect creation and partial amorphization, as well as recrystallization, was earlier reported in various other metal oxide-based nanowires. 3,6,8 Detailed damage production by both low-and high-energy ions are discussed later in this paper.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Most of the conventional methods are suitable for metal-based nanostructures. Ion irradiation has proven to be extremely useful to weld ceramic nanostructures. − However, slicing, cutting, or fragmenting at the nano level are limited to only a handful number of techniques. Heating-based methods have been used to fragment metal nanowires into nanoparticles of dimensions 30–50 nm through Rayleigh instability .…”

Section: Introductionmentioning

confidence: 99%

Broad Beam-Induced Fragmentation and Joining of Tungsten Oxide Nanorods: Implications for Nanodevice Fabrication and the Development of Fusion Reactors

Rajbhar

Möller

Satpati

et al. 2020

ACS Appl. Nano Mater.

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In this work, for the first time, fragmentation and joining of tungsten oxide (WO 3 ) nanorods induced by a broad ion beam are reported. Although at low energy (5 keV) and moderate ion fluence, nanorods fragment into smaller pieces along the length, at higher ion energies (50−100 keV), a contrary process occurs, which leads to the joining of the nanorods. A state-ofthe-art ion−solid interaction simulation, namely, TRI3DYN, has been invoked to explore the possible mechanisms that reveal subtle contributions of surface defects, ion-beam mixing, and sputtering. High-resolution electron microscopy, photoluminescence study, and X-ray photoelectron spectroscopy support the observed results and proposed mechanisms. Such modifications have interesting effects on the electrical conductivity of the nanorod assembly. The change in sample color upon ion irradiation from initial white to yellow, light blue, deep blue, light green, and cyan shows an excellent and reversible chromatic response of tungsten oxide nanorods to irradiation. Such a property can be exploited to fabricate radiation sensors. The fragmentation and joining at different energy scales have essential implications in nanodevice fabrication through the bottom-up approach as well as for the development of fusion reactors.

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“…A diverse range of perovskite material with different morphologies and crystallinity (i.e. large area nanocube-like ZnSnO3 148 , SrMnO3 nanowire 158 , mesoporous spheres of NiMnO6 159 , rectangular prism-like CaTiO3 particles 149 ) prepared through hydrothermal has witnessed its huge superiority.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

王则鉴¹,

洪佳佳²,

Sue-Faye³

et al. 2020

Acta Physico Chimica Sinica

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Moisture repelling perovskite nanowires for higher stability in energy applications

Cited by 15 publications

References 33 publications

Alteration of Wettability of Copper–Copper Oxide Nanocomposites through Cu–O Bond Breaking Swayed by Ultraviolet and Electron Irradiation

Alteration of Wettability of Copper–Copper Oxide Nanocomposites through Cu–O Bond Breaking Swayed by Ultraviolet and Electron Irradiation

Broad Beam-Induced Fragmentation and Joining of Tungsten Oxide Nanorods: Implications for Nanodevice Fabrication and the Development of Fusion Reactors

Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

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