Polyol synthesis of nanoparticles: status and options regarding metals, oxides, chalcogenides, and non-metal elements

Dong, Hailong; Chen, Ying-Chu; Feldmann, Claus

doi:10.1039/c5gc00943j

Cited by 364 publications

(269 citation statements)

References 318 publications

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“…Based on EG, the polyols comprise two main series of molecules: (1) diethylene glycol (DEG), triethylene glycol (TrEG), tetraethylene glycol (TEG), and so on up to polyethylene glycol (PEG), with the latter containing more than 2000 ethylene groups, (2) propanediol (PDO), butanediol (BD), pentanediol (PD), and so on. Moreover, glycerol (GLY), pentaerythritol (PE), and carbohydrates chemically belong to the polyols [24,26]. In a typical polyol process, the solid precursor is suspended in the liquid polyol, and then the solution or the suspension is stirred and heated to a given temperature which can reach the boiling point of the polyol.…”

Section: Energy Dispersive X-ray Spectroscopy (Edx)mentioning

confidence: 99%

“…By increasing the mass ratio of ZnO precursor to CNTs more and larger ZnO nanoprticles appeared. In this study the process used to prepare zinc oxide nanoparticles and subsequent hybrid materials is a polyol process [24,[26][27][28][29]. The polyol synthesis designates the liquid-phase synthesis in high-boiling, multivalent alcohols and is mainly directed to nanoparticles.…”

Section: Energy Dispersive X-ray Spectroscopy (Edx)mentioning

confidence: 99%

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The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

Largani

Pasha

2016

Int Nano Lett

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In this research, MWCNT-ZnO hybrid nanomaterials were synthesized by a simple sol-gel process using Zn(CH 3 COO) 2 Á2H 2 O and functionalized MWCNT with carboxyl(COOH) and hydroxyl(OH) groups. Three different mass ratios of MWCNT:ZnO = 3:1, 1:1 and 1:3 were examined. The prepared nanomaterials were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and Fourier transform infrared spectroscopy (FTIR). Successful growth of MWCNT-ZnO hybrids for both COOH and OH functional groups and all the three mass ratios were obtained. The ZnO nanoparticles attached on the surfaces of CNTs have rather spherical shapes and hexagonal crystal structure. By increasing the concentration of ZnO, the number and average size of ZnO nanoparticles decorated the body of CNTs in hybrid structures increase. By increasing the ZnO precursor, the distribution of ZnO nanoparticles that appeared on the surface of CNTs becomes more uniform. The SEM observation beside EDX analysis revealed that at the same concentration ratio the amount of ZnO loading on the surface of MWCNT-COOH is more than MWCNT-OH. Moreover, the average size of ZnO nanoparticles attached on the surface of COOH functionalized CNTs is relatively smaller than that of OH functionalized ones.

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Section: Energy Dispersive X-ray Spectroscopy (Edx)mentioning

confidence: 99%

Section: Energy Dispersive X-ray Spectroscopy (Edx)mentioning

confidence: 99%

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

Largani

Pasha

2016

Int Nano Lett

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“…The main reason causing this phenomenon could be the different precursors to ethylene glycol ratio. Ethylene glycol is a reductive agents in the polyol synthesis [24] which acts both as reaction solution and reductive agents. Comparatively, keeping ethylene glycol same in all the microwave assisted synthesis, the higher precursor concentration environment are less reductive compared to lower precursor concentrations.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dots with Tunable Photoluminescence Properties

Chen¹,

Zhang²

2018

International Conference of Theoretical and Applied Nanoscience and Nanotechnology

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-A facile process for producing carbon dots with tunable luminescence properties has been developed by using microwaveassisted technique. Citric acid and L-histidine were used as carbohydrate precursors. By varying the precursors concentration in ethylene glycol, adjustable multicolor carbon dots of blue, green to yellow under UV excitation were easily obtained. We found that the photoluminescence of carbon dots (diameter < 40 nm) can be adjusted by simply varying precursor amount, which has not yet been reported before. Other methods for preparing different photoluminescent carbon dots often use oxidative/reductive chemicals, our method is facile and environmental friendly. The tuneable photoluminescence range can extend from 430 nm to 550 nm in this system.

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“…Apart from PtCl 2 , different mediated agents such as NaCl, CuCl 2 , FeCl 3 , KBr have been investigated for Ag nanowire synthesis [3][4][5][6][7]. Polyol method is often used for nanoparticle preparation due to its low cost, effectiveness and simplicity [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Synthesis Conditions on the Formation and Morphology of Silver Nanowires

Minh¹

2018

JST

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Silver nanowires with one-dimensional structures have attracted much research interest due to their potential applications in several areas. It is well-known that their properties strongly depend on the size and morphology of the silver nanostructures. Therefore, in our work, silver nanostructures were prepared using a polyol process and the effects of synthesis conditions on the formation and morphology of silver nanowires were investigated. The structure and morphology of the synthesized silver nanostructures were characterized using transmission electron microscopy (TEM) and X-ray powder diffraction (XRD). The results showed that the morphology of the silver nanowires can be effectively controlled via adjusting parameters of the synthesis process.

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Polyol synthesis of nanoparticles: status and options regarding metals, oxides, chalcogenides, and non-metal elements

Abstract: The polyol synthesis of nanoparticles is reviewed, including metals, oxides, main-group elements and recent strategies to expand the method's limits.

Cited by 364 publications

References 318 publications

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

Carbon Dots with Tunable Photoluminescence Properties

Effects of Synthesis Conditions on the Formation and Morphology of Silver Nanowires

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