The hydrothermal synthesis of ultra-high aspect ratio Ag nanoflakes and their performance as conductive fillers in heaters and pastes

Wang, Hua; Li, Kaibin; Li, Guanghai

doi:10.1039/c7ra11937b

Cited by 15 publications

(5 citation statements)

References 45 publications

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“…The presence of silver oxalate in AgO preparation was also observed in other research findings, specifically during hydrothermal synthesis. [ 48 ] The peak at around 15.6° in ALBAN and AL‐PEG‐NP confirms the presence of aspirin. [ 49 ] The crystallite size was calculated using Debye–Scherrer's formula,

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…”

Section: Resultsmentioning

confidence: 96%

Enhancing the Aspirin Loading and Release Efficiency of Silver Oxide Nanoparticles Using Oleic Acid‐based Bio‐Surfactant from Enteromorpha intestinalis

Nazeer¹,

Saravanan

Chandar

et al. 2020

Applied Organom Chemis

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This study is an attempt to improve the loading and release potential of silver oxide nanoparticles (AgO NPs) using Oleic acid based bio-surfactant isolated from Enteromorpha instestinalis. The isolated Oleic acid based bio-surfactant was characterized using GC-MS, NMR, and HPLC. The AgO NPs were then surface-functionalized with the bio-surfactant and analyzed using XRD, HR-TEM/SAED, DLS, UV-Vis, and FTIR spectroscopy to evaluate the loading of aspirin and functional groups responsible for loading. The model drug Aspirin that has depreciated bio-availability due to poor solubility was used to test the drug carrier efficiency of the AgO NPs after the surface-functionalization. The loading of aspirin was increased by up to 80% in bio-surfactants than PEGcoated NPs (72%) at a 1:1 ratio (Aspirin/NP). The drug release profile of aspirin was evaluated by dialysis at different acidic conditions (pH 1.2, 6.8, and 7.4) and the active release of aspirin was observed in pH 6.8 and bio-surfactant produced better release than PEG and commercial tablet in all the pH conditions. To identify the mechanism of release from the carrier, the release kinetics was studied using zero-order, first-order, Higuchi's, and Korsmeyer Peppas equations and found that the release was time-dependent and non-fickian.

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sans-serifD = sans-serifKλ / sans-serifβcosθ

…”

Section: Resultsmentioning

confidence: 96%

Enhancing the Aspirin Loading and Release Efficiency of Silver Oxide Nanoparticles Using Oleic Acid‐based Bio‐Surfactant from Enteromorpha intestinalis

Nazeer¹,

Saravanan

Chandar

et al. 2020

Applied Organom Chemis

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“…In the literature, as a rule, there are two approaches to obtaining metallic 2D materials, firstly, this is chemical synthesis -solution deposition [4] or solvothermal synthesis [59]. Secondly, physical methods, such as wet grinding of spherical particles to give them a flakes shape [60], repeated folding and calendering binary metal foils [61], ultrasonic treatment of macroscopic metal foils [62].…”

Section: Morphology Structural and Transport Studies Silver Micro Cap...mentioning

confidence: 99%

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Voronin,

Fadeev,

Ivanchenko

et al. 2023

Preprint

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For the first time, an environmentally friendly waste-free closed cycle for the formation of EMI shielding materials that are promising for 5G communications is considered. Based on the proposed closed technological cycle, two types of EMI shielding materials have been obtained; both materials have significant prospects for signal shielding in all ranges that are allocated in different countries for 5G communication. The first type of materials are transparent conductive meshes with a transparency of more than 80% and with a shielding efficiency of more than 40 dB in the S and L bands and about 30 dB in the K and Ka bands. The study of signal reflection characteristics in the S, L, C, K and Ka bands showed the promise of using these materials as transparent 5G signal reflectors. The reflection coefficient in all considered ranges is above 90% (-0.5 dB). The second type of shielding material are continuous silver micro caps films characterized by a shielding efficiency of 90.1 dB at a thickness of 6.2±1.2 µm. We have also shown that silver micro caps can separate into silver flakes and ribbons when sonicated. These materials can also be used to produce EMI shielding coatings and composites. A detailed analysis of the shielding properties showed that each type of materials obtained in a closed technological cycle is comparable with the best literature results and significantly wins in terms of cost.

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“…63 , RSC Publishing, ref. 64 , IOP Publishing, ref. 65 , under a Creative Commons Attribution-Non Commercial 3.0 Unported License; (b) ref.…”

Section: Electronic Filler Materialsmentioning

confidence: 99%

“…Figure reproduced with permission from: (a) ref 63 ,. RSC Publishing, ref 64 ,. IOP Publishing, ref 65 ,.…”

mentioning

confidence: 99%

Recent advances in soft electronic materials for intrinsically stretchable optoelectronic systems

Koo¹,

Yun²,

Lee³

et al. 2022

OEA

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In recent years, significant progress has been achieved in the design and fabrication of stretchable optoelectronic devices. In general, stretchability has been achieved through geometrical modifications of device components, such as with serpentine interconnects or buckled substrates. However, the local stiffness of individual pixels and the limited pixel density of the array have impeded further advancements in stretchable optoelectronics. Therefore, intrinsically stretchable optoelectronics have been proposed as an alternative approach. Herein, we review the recent advances in soft electronic materials for application in intrinsically stretchable optoelectronic devices. First, we introduce various intrinsically stretchable electronic materials, comprised of electronic fillers, elastomers, and surfactants, and exemplify different intrinsically stretchable conducting and semiconducting composites. We also describe the processing methods used to fabricate the electrodes, interconnections, charge transport layers, and optically active layers used in intrinsically stretchable optoelectronic devices. Subsequently, we review representative examples of intrinsically stretchable optoelectronic devices, including light-emitting capacitors, light-emitting diodes, photodetectors, and photovoltaics. Finally, we briefly discuss intrinsically stretchable integrated optoelectronic systems.

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The hydrothermal synthesis of ultra-high aspect ratio Ag nanoflakes and their performance as conductive fillers in heaters and pastes

Abstract: Ag nanoflakes were formed via a kinetically controlled hydrothermal synthesis method, through the slow release of Ag+ from oxalate compound Ag2C2O4, and show excellent conductivity as conductive fillers in flexible Ag nanowire film heaters and in highly conductive Ag paste.

Cited by 15 publications

References 45 publications

Enhancing the Aspirin Loading and Release Efficiency of Silver Oxide Nanoparticles Using Oleic Acid‐based Bio‐Surfactant from Enteromorpha intestinalis

Enhancing the Aspirin Loading and Release Efficiency of Silver Oxide Nanoparticles Using Oleic Acid‐based Bio‐Surfactant from Enteromorpha intestinalis

Eco-Friendly Scalable Manufacturing Silver Transparent Сonductive Mesh and Silver Micro Caps, in One Technological Cycle for Efficient EMI Shielding Materials for 5G Communications

Recent advances in soft electronic materials for intrinsically stretchable optoelectronic systems

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