Generation and characterization of NiO nanoparticles by continuous wave fiber laser ablation in liquid

Khan, Sohaib Z.; Yuan, Yudie; Abdolvand, Amin; Schmidt, Marlen; Crouse, Philip; Li, Lin; Li, Zhu; Sharp, Martin; Watkins, Ken

doi:10.1007/s11051-008-9530-9

Cited by 74 publications

(39 citation statements)

References 27 publications

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“…Currently, it is studied intensively due of its high chemical stability, electro catalysis, electron transfer capability and super-capacitance properties in particular [8][9][10][11][12][13]. Among the prominent technological applications of nano-scaled NiO, one can mention cathode material for alkaline batteries, p-type transparent conducting oxides, gas sensing, anodic electrochromic smart windows, and electrochemical storage devices as well as water electrolysis [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. But the major ongoing research focus on nanoscaled NiO is related mainly to its super-capacitor singular applications.…”

Section: Introductionmentioning

confidence: 99%

Single phase Bunsenite NiO nanoparticles green synthesis by Agathosma betulina natural extract

Thema

Manikandan

Gurib-Fakim

et al. 2016

Journal of Alloys and Compounds

225

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Section: Introductionmentioning

confidence: 99%

Single phase Bunsenite NiO nanoparticles green synthesis by Agathosma betulina natural extract

Thema

Manikandan

Gurib-Fakim

et al. 2016

Journal of Alloys and Compounds

225

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“…Crystallinity and phase structures of the NPs were further identified using selected area electron diffraction (SAED). Details of the preparation of the NPs for the characterization can be found elsewhere [12]. In order to understand the CWLAL mechanism, the light emission spectroscopic technique was used to observe the laser irradiation of Ti and Ni plates in air using the same operating conditions as described above for the process carried out in the liquid for the NP generation.…”

Section: Methodsmentioning

confidence: 99%

Generation of metal-oxide nanoparticles using continuous-wave fibre laser ablation in liquid

Liu¹,

Yuan²,

Khan³

et al. 2009

J. Micromech. Microeng.

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In recent years, laser ablation in liquid has become an increasingly important technique for the fabrication of nanoparticles (NPs). To date, only pulsed lasers have been used. This paper reports our recent studies on the generation of Ti-oxide and Ni-oxide NPs by the ablation of metal targets in aqueous environments using a high-power, high-brightness continuous-wave (cw) fibre laser at a wavelength of 1070 nm. Owing to the high and uniform irradiation, the fibre laser provides an alternative approach for NP generation with well-controlled phase, size and size distribution, along with high production rate. Characterization of the NPs, in terms of morphology, size and size distribution, chemical composition and phase structure, by means of high-resolution transmission electron microscopy (HRTEM), high-angle annular dark field (HAADF) in scanning-transmission (STEM) mode, energy-dispersive x-ray spectroscopy (EDS) and x-ray diffraction (XRD), has been presented. In addition, limitations of the cw fibre laser process have been discussed in comparison with pulsed laser process.

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“…This method renders possible an atural production of nanoclustersduring the interaction of intense laser radiation with at arget, [1][2][3][4][5] which can then form either an anostructured film (when ablated in gasses) [5][6][7][8][9][10] or colloidal nanoparticle solutions (when ablated in liquids). [11][12][13][14][15][16][17][18][19][20][21][22][23] It is important that in both cases the laser-ablative growth can be done in ultrapure surrounding (neutralr esidual gasses, deionized water) to avoid any residual contamination of synthesized nanostruc-tures. [16][17][18][19][20] Furthermore, bare (ligand-free) surfaceo fl aser-synthesized nanomaterials can have unique properties (e.g.,p articulars urface chemistry [24] and reactivity [25] ), which makes them extremely promising for various applications, including cancer theranostics, [26,27] neurology, [28] and biofuel cells.…”

Section: Introductionmentioning

confidence: 99%

Cavitation‐Free Continuous‐Wave Laser Ablation from a Solid Target to Synthesize Low‐Size‐Dispersed Gold Nanoparticles

et al. 2017

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Continuous wave (CW) radiation from a Yb-fiber laser (central wavelength 1064 nm, power 1-200 W) was used to initiate ablation of a gold target in deionized water and to synthesize bare (unprotected) gold nanoparticles. We show that the formed nanoparticles present a single low-size-dispersed population with a mean size of the order of 10 nm, which contrasts with previously reported data on dual populations of nanoparticles formed during pulsed laser ablation in liquids. The lack of a second population of nanoparticles is explained by the absence of cavitation-related mechanism of material ablation, which typically takes place under pulsed laser action on a solid target in liquid ambience, and this supposition is confirmed by plume visualization tests. We also observe a gradual growth of mean nanoparticle size from 8-10 nm to 20-25 nm under the increase of laser power for 532 nm pumping wavelength, whereas for 1064 nm pumping wavelength the mean size 8-10 nm is independent of radiation power. The growth of the nanoparticles observed for 532 nm wavelength is attributed to the enhanced target melting and splashing followed by additional heating due to an efficient excitation of plasmons over gold nanoparticles. Bare, low-size-dispersed gold nanoparticles are of importance for a variety of applications, including biomedicine, catalysis, and photovoltaics. The use of CW radiation for nanomaterial production promises to improve the cost efficiency of this technology.

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Generation and characterization of NiO nanoparticles by continuous wave fiber laser ablation in liquid

Cited by 74 publications

References 27 publications

Single phase Bunsenite NiO nanoparticles green synthesis by Agathosma betulina natural extract

Single phase Bunsenite NiO nanoparticles green synthesis by Agathosma betulina natural extract

Generation of metal-oxide nanoparticles using continuous-wave fibre laser ablation in liquid

Cavitation‐Free Continuous‐Wave Laser Ablation from a Solid Target to Synthesize Low‐Size‐Dispersed Gold Nanoparticles

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