3,4-Dihydro-1,3-2 H -benzoxazines: Novel reducing agents through one electron donation mechanism and their application as the formation of nano-metallic silver coating

Kaewvilai, Attaphon; Wattanathana, Worawat; Jongrungruangchok, Suchada; Veranitisagul, Chatchai; Koonsaeng, Nattamon; Laobuthee, Apirat

doi:10.1016/j.matchemphys.2015.10.011

Cited by 23 publications

(21 citation statements)

References 16 publications

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“…Silver ions were reduced to silver atoms and the silver atoms gathered into a ball at the beginning of the reaction process. Finally, the Ag dendrites formed with the reaction time increasing [42]. Ascorbic acid (AA) as a weak reductant provides a way to form significantly branched Ag particles from the reduction of AgNO 3 sometimes [43][44][45].…”

Section: ¡mentioning

confidence: 99%

Insight into the fabrication and perspective of dendritic Ag nanostructures

Cai

et al. 2017

Journal of Experimental Nanoscience

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This article reviews recent advances in the shape-controlled synthesis routes of hierarchical Ag dendritic nanostructures. Various fabricated techniques, with or without templates or surfactants, electrochemical method and sonochemical, microwave or photochemical assisted synthesis method, can be amazingly effective in the dendritic Ag nanostructures synthesis, if synthetic parameters are carefully selected. The involved synthesis mechanism are discussed in order to control the limited factors along the fabricated progress efficiently and then to find new synthetic means. Also, the blemish of the above synthesis routes that hinders the practical application is pointed out to inspire the future research.

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Section: ¡mentioning

confidence: 99%

Insight into the fabrication and perspective of dendritic Ag nanostructures

Cai

et al. 2017

Journal of Experimental Nanoscience

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“…The structural phase of welded specimen was characterized by X-ray diffraction (XRD: Philips X-Pert-MPD X-ray diffractometer with CuKα radiation, Eindhoven, The Netherlands). In addition, the crystallite size of welded pipe was calculated by Scherrer's equation [22].…”

Section: Characterization and Equipmentmentioning

confidence: 99%

The Electrochemical Investigation of the Corrosion Rates of Welded Pipe ASTM A106 Grade B

Yingsamphancharoen

Srisuwan

Rodchanarowan

2016

Metals

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Abstract:The aim of this work was to investigate the corrosion rate of welded carbon steel pipe (ASTM (American Society for Testing and Materials) A106 Grade B) by GTAW under the currents of 60, 70, and 80 A. All welded pipes satisfied weld procedure specifications and were verified by a procedure qualification record. The property of used materials was in agreement with the ASME standard: section IX. The welded pipe was used for schematic model corrosion measurements applied in 3.5 wt % NaCl at various flow rates and analyzed by using the electrochemical technique with Tafel's equation. The results showed the correlation between the flow rate and the corrosion rate of the pipe; the greater the flow rate, the higher corrosion rate. Moreover, the welded pipe from the welding current of 70 A exhibited higher tensile strength and corrosion resistance than those from currents of 60 and 80 A. It indicated that the welding current of 70 A produced optimum heat for the welding of A106 pipe grade B. In addition, the microstructure of the welded pipe was observed by SEM. The phase transformation and crystallite size were analyzed by XRD and Sherrer's equation. The results suggested that the welding current could change the microstructure and phase of the welded pipe causing change in the corrosion rate.

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“…Due to its high thermal stability and ability to inhibit the growth of various microorganisms, silver nanoparticles exhibit potentially useful addition as another additive for PBS [33,34]. Our research group has developed a new method for preparing silver nanoparticles and then coating the nanoparticles onto the different substrates using benzoxazine as a reducing agent [35]. Different types of substrates, i.e.,SiO 2 , TiO 2 , glass slides, polycarbonate (PC) sheets, polyvinyl alcohol (PVA), and chitosan (CS) powder as well as carbon black (CB) powder, were successfully coated with silver nanoparticles using this method [35].…”

Section: Introductionmentioning

confidence: 99%

“…Our research group has developed a new method for preparing silver nanoparticles and then coating the nanoparticles onto the different substrates using benzoxazine as a reducing agent [35]. Different types of substrates, i.e.,SiO 2 , TiO 2 , glass slides, polycarbonate (PC) sheets, polyvinyl alcohol (PVA), and chitosan (CS) powder as well as carbon black (CB) powder, were successfully coated with silver nanoparticles using this method [35]. e procedure occurred easily at room temperature, and any solvent or medium can be used.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial, Conductive, and Mechanical Properties of AgCB/PBS Composite System

Veranitisagul

Wattanathana

Wannapaiboon

et al. 2019

Journal of Chemistry

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Demand for environmentally friendly plastic materials which are obtained from renewable resources such as biomass-based polyesters is of concern. Herein, the enhanced characteristic performances of poly(butylene succinate) (PBS) by employing the fabrication of PBS-based composites with the nanosilver-coated carbon black (AgCB) using an injection-molding method are reported. The preformed AgCB additives are priorly prepared by the benzoxazine oxidation method. Phase characterization of the obtained composite materials examined by X-ray diffraction (XRD) reveals the crystalline PBS matrix and the presence of metallic silver particles, confirming the successful fabrication of the composite materials. Detailed analyses on thermal, mechanical, electrical, and antimicrobial properties of the composite materials are reported. The AgCB-PBS composite materials provide such potential features by an enhancement of electrical conductivity and the antimicrobial activity by an inhibition against E. coli and C. albicans. These AgCB-PBS composite materials show the possibility to be an option for antielectrostatic and antimicrobial applications such as for the production of smart, environmentally friendly keyboards.

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3,4-Dihydro-1,3-2 H -benzoxazines: Novel reducing agents through one electron donation mechanism and their application as the formation of nano-metallic silver coating

Cited by 23 publications

References 16 publications

Insight into the fabrication and perspective of dendritic Ag nanostructures

Insight into the fabrication and perspective of dendritic Ag nanostructures

The Electrochemical Investigation of the Corrosion Rates of Welded Pipe ASTM A106 Grade B

Antimicrobial, Conductive, and Mechanical Properties of AgCB/PBS Composite System

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