Synthesis, Characterization and Electrical Properties of Nano Metal and Metal-Oxide Doped with Conducting Polymer Composites by in-Situ Chemical Polymerization

Senthilkumar, Subramanian; Rajendran, A.

doi:10.15406/mojps.2017.01.00031

Cited by 17 publications

(12 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this part of the paper, first the main comparison with pervious works shows that, Comparing this to the work [12,13] which intended that the mechanical properties of the Cork is affected by the doping with PTT-g-MA which is the way that the doping by aluminum oxide did in our work, then the main results that have been obtained from the experiments made of polystyrene (cork) doped by aluminum oxide in different rate of molar (0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0) are presented, the techniques of X-ray diffraction (XRD) was used to identify the precise crystal structure of the samples, where an X-ray was shed on the samples, which would appear according to reflections (Bragg) representing the atoms arranged in a specific direction, and through the data obtained from the tests of the prepared samples, the granular size, lattice constants and density can be calculated, and macroscopic compliance, and the specifications of the X-ray diffraction device that was used at the University of Johannesburg -South Africa are as follows:…”

Section: Resultsmentioning

confidence: 76%

Determination the Structural Properties of Polystyrene (Cork) Doped by Aluminium Oxide Using the (XRD) Technique

Albashier¹,

Hilo²,

Suliman³

2021

AJMSP

View full text Add to dashboard Cite

The X-ray diffraction technique is one of the techniques that are widely and precisely used in determining the structural properties of materials through which materials can be developed and their areas of use increased, and Cork is considered one of the polymers of very low industrial value and is used only for secondary purposes such as packaging, and it is possible to have any other uses of high value by doping the cork with materials that can change its physical properties. Therefore, this study aimed to improve the structural properties of cork (polystyrene) doped by aluminum oxide with doping ratios (0.1,….., 0.9) molar, through X-ray diffraction, where the results showed that all the prepared samples are multi-crystallized of the types (cubic, mono, triple and hexagonal). And it was found that the preferred direction of growth is the level (211), and the crystal size of all the prepared samples was calculated, and it was found that it increases with the increase in the percentage of doping. Also, the density and number of crystals were calculated as each of them decreases with the increase of the doping percentage. This study concluded that cork, through its structural properties and after doping by aluminum oxide, can be of great technological benefit by having properties that are very similar to those of a semiconductor.

show abstract

Section: Resultsmentioning

confidence: 76%

Determination the Structural Properties of Polystyrene (Cork) Doped by Aluminium Oxide Using the (XRD) Technique

Albashier¹,

Hilo²,

Suliman³

2021

AJMSP

View full text Add to dashboard Cite

show abstract

“…Regarding polymer‐based NFs, among many CP nanomaterials, PANI has got much attention due to its intrinsic conducting properties, non‐toxicity, easy synthesis, cost effectiveness, environmental robustness and unique surface chemistry 16,20 . Owing to the high charge mobility (free electrons) at molecular level, PANI has shown anomalous augmentation in electrical conductivity in intrinsic as well as in nanocomposite forms 21,22 23,24 .…”

Section: Introductionmentioning

confidence: 99%

“…However, the thermo‐physical properties were not measured experimentally, rather theoretical correlations were implemented to assess the thermal conductivity, viscosity, density and specific heat capacity 31 . Moreover, the fibrous structure of PANI has been synthesized via oxidative polymerization as reported in the literature 16,22,29,31 . Siong et al have also shown the increment in thermal conductivity ~4.67% with a weight fraction of 0.2% using dodecylbenzenesulfonic acid (DBSA)‐doped PANI‐based ionic NFs at a temperature of 50°C 32 .…”

Section: Introductionmentioning

confidence: 99%

“…31 Moreover, the fibrous structure of PANI has been synthesized via oxidative polymerization as reported in the literature. 16,22,29,31 Siong et al have also shown the increment in thermal conductivity 4.67% with a weight fraction of 0.2% using dodecylbenzenesulfonic acid (DBSA)-doped PANI-based ionic NFs at a temperature of 50 C. 32 The limited work on the PANI-based NFs has shown that the research is still on its way as the colloidal stability, pressure losses and PP aspects were not explored much. These aspects play a vital role in longterm operation of HTFs and are the decisive factors required in the process design.…”

Section: Introductionmentioning

confidence: 99%

“…16,20 Owing to the high charge mobility (free electrons) at molecular level, PANI has shown anomalous augmentation in electrical conductivity in intrinsic as well as in nanocomposite forms. 21,22 Therefore, CPs can stimulate the heat conduction as well. 23,24 Wan et al have shown the thermal conductivity improvement of PANI (nanofibres)based NFs in DI-water due to uniform morphology as well as high crystallinity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal conductivity, rheology and stability analysis of 2D tungsten disulphide‐doped polyaniline‐based nanofluids: An experimental investigation

et al. 2020

View full text Add to dashboard Cite

Summary In this study, polyaniline (PANI) nanocomposite‐based nanofluids (NFs) in ethylene glycol were obtained with a two‐step method by varying volume concentrations from 0.005% to 0.02%. Tungsten disulphide (WS2) nanoparticles were doped in PANI having different weight percentage (1%, 2% and 5%) via oxidative in situ polymerization employing ammonium persulphate oxidant in an acidic environment. The nanocomposites were comprehensively characterised using various techniques, such as Fourier transform infrared spectroscopy, thermogravimetric analysis, field emission scanning electron microscopy and high‐resolution transmission electron microscopy. The formulated NFs were extensively investigated with zeta‐sizer, particle size analyzer, thermal property analyzer and rheometer in a temperature range of 25°C to 70°C. The zeta potential results (up to 54.5 mV) were evident of extraordinary stability of NFs at all targeted temperatures along with polydispersity index <30% and mean particle/agglomerate size in the range of 335.8 to 489 nm. Additionally, a remarkable thermal conductivity improvement (~20.7%) was achieved with intrinsic PANI‐based NFs at an operating temperature of 50°C. Subsequently, it varied substantially with WS2 doping within PANI matrix and reached to 117.9%. Furthermore, the rheological measurements have revealed the viscoelastic nature of NFs along with a remarkable reduction in apparent viscosity (up to 8.4%). The temperature sweep viscosity indicated the transition of relative viscosity from high to low at a critical temperature of about 55°C. The NF10 (WS2 + PANI 5, at 0.005 vol%) was found to be the best candidate with 63.8% thermal conductivity enhancement and 6.4% viscosity reduction as compared with the base fluid at an operating temperature of 50°C. Thus, WS2 doping within PANI has proved to be crucial in the proliferation of thermal conductivity and mitigation of viscosity.

show abstract

Virus adsorbent systems based on Amazon holocellulose and nanomaterials

de Souza Carolino,

Freitas,

Macalia

et al. 2024

Microscopy Res & Technique

View full text Add to dashboard Cite

The environment preservation has been an important motivation to find alternative, functional, and biodegradable materials to replace polluting petrochemicals. The production of nonbiodegradable face masks increased the concentration of microplastics in the environment, highlighting the need for sustainable alternatives, such as the use of local by‐products to create efficient and eco‐friendly filtering materials. Furthermore, the use of smart materials can reduce the risk of contagion and virus transmission, especially in the face of possible mutations. The development of novel materials is necessary to ensure less risk of contagion and virus transmission, as well as to preserve the environment. Taking these factors into account, 16 systems were developed with different combinations of precursor materials (holocellulose, polyaniline [ES‐PANI], graphene oxide [GO], silver nanoparticles [AgNPs], and activated carbon [AC]). Adsorption tests of the spike protein showed that the systems containing GO and AC were the most efficient in the adsorption process. Similarly, plate tests conducted using the VSV‐IN strain cultured in HepG2 cells showed that the system containing all phases showed the greatest reduction in viral titer method. In agreement, the biocompatibility tests showed that the compounds extracted from the systems showed low cytotoxicity or no significant cytotoxic effect in human fibroblasts. As a result, the adsorption tests of the spike protein, viral titration, and biocompatibility tests showed that systems labeled as I and J were the most efficient. In this context, the present research has significantly contributed to the technological development of antiviral systems, with improved properties and increased adsorption efficiency, reducing the viral titer and contributing efficiently to public health. In this way, these alternative materials could be employed in sensors and devices for filtering and sanitization, thus assisting in mitigating the transmission of viruses and bacteria.Research Highlights Sixteen virus adsorbent systems were developed with different combinations of precursor materials (holocellulose, polyaniline (ES‐PANI), graphene oxide (GO), silver nanoparticles (AgNPs), and activated carbon (AC)). The system that included all of the nanocomposites holocellulose, PANI, GO, AgNPs, and AC showed the greatest reduction in viral titration. The biocompatibility tests revealed that all systems caused only mild or moderate cytotoxicity toward human fibroblasts.

show abstract

Synthesis, Characterization and Electrical Properties of Nano Metal and Metal-Oxide Doped with Conducting Polymer Composites by in-Situ Chemical Polymerization

Cited by 17 publications

References 13 publications

Determination the Structural Properties of Polystyrene (Cork) Doped by Aluminium Oxide Using the (XRD) Technique

Determination the Structural Properties of Polystyrene (Cork) Doped by Aluminium Oxide Using the (XRD) Technique

Thermal conductivity, rheology and stability analysis of 2D tungsten disulphide‐doped polyaniline‐based nanofluids: An experimental investigation

Virus adsorbent systems based on Amazon holocellulose and nanomaterials

Contact Info

Product

Resources

About