Synthesis and enhanced dielectric properties of copper oxidenanoparticles

Bitra, Hema Chandra Rao; Rao, A. T.; Babu, K. Suresh; Rao, G. Narsinga

doi:10.1016/j.matchemphys.2020.123379

Cited by 17 publications

(6 citation statements)

References 19 publications

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“…These results can be attributed to the large surface area of the added nanoparticles which increased the surface conductivity of the designed modified sensor. Additionally, the higher detection results observed by using the modified sensor could be due to the high dielectric permittivity value of CuONPs (≈10 4 ) and Al 2 O 3 NPs (≈7.8-11.1) at ambient temperature [58,59]. The dynamic response of the designed NTX-TPB conventional and modified NTX-TPB-CuO/Al 2 O 3 NPs nanocomposite sensors were investigated under optimized experimental conditions to detect the difference between the instant potential time and its steady-state value (1 mV) [60].…”

Section: Characteristics Of the Constructed Sensorsmentioning

confidence: 99%

“…Table 1 reported the effective potential response and the potentiometric behavior of the constructed NTX-TPB and NTX-TPB-CuO/Al2O3NPs nanocomposite sensors. [58,59]. The dynamic response of the designed NTX-TPB conventional and modified NTX-TPB-CuO/Al2O3NPs nanocomposite sensors were investigated under optimized experimental conditions to detect the difference between the instant potential time and its steady-state value (1 mV) [60].…”

Section: Characteristics Of the Constructed Sensorsmentioning

confidence: 99%

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New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

2021

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Electrically conductive polymeric nanocomposites with nanoparticles are adaptable types of nanomaterials that are prospective for various applications. The extraordinary features of copper oxide (CuO) and aluminium oxide (Al2O3) nanostructures, encourages extensive studies to prospect these metal oxide nanocomposites as potential electroactive materials in sensing and biosensing applications. This study suggested a new CuO/Al2O3 nanocomposite-based polymeric coated wire membrane sensor for estimating naltrexone hydrochloride (NTX) in commercial formulations. Naltrexone hydrochloride and sodium tetraphenylborate (Na-TPB) were incorporated in the presence of polymeric polyvinyl chloride (PVC) and solvent mediator o-nitrophenyloctyl ether (o-NPOE) to form naltrexone tetraphenylborate (NTX-TPB) as an electroactive material. The modified sensor using NTX-TPB-CuO/Al2O3 nanocomposite displayed high selectivity and sensitivity for the discrimination and quantification of NTX with a linearity range 1.0 × 10−9–1.0 × 10−2 mol L−1 and a regression equation EmV = (58.25 ± 0.3) log [NTX] + 754.25. Contrarily, the unmodified coated wire sensor of NTX-TPB exhibited a Nernstian response at 1.0 × 10−5–1.0 × 10−2 mol L−1 and a regression equation EmV = (52.1 ± 0.2) log [NTX] + 406.6. The suggested modified potentiometric system was validated with respect to various criteria using the methodology recommended guidelines.

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Section: Characteristics Of the Constructed Sensorsmentioning

confidence: 99%

Section: Characteristics Of the Constructed Sensorsmentioning

confidence: 99%

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

2021

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“…This maximum value of real part of dielectric constant may be due to maximum concentration of Cu vacancies or impurities due to Cu defects at interstitial in maximum Cu 2 O doped composites which has also be calculated using First principle calculations. Therefore the mammoth value of real part of dielectric constant lies in range of 1000 to 100000 results due decreasing grain resistance due to Cu/O vacancies calculated from nyquist plots which consists of semicircle plots represent grain and grain boundaries [2].…”

Section: A C Conductivitymentioning

confidence: 99%

“…CuO have properties of very rare p-type semiconductor with bulk Cu vacancies. It has been found shows that Cu and O vacancies is responsible for high value of dielectric constant in CuO [2]. The high value of dielectric constant in CuO Nano structures makes it wide use in devices which uses very high frequency [3].CuO material are used as super capacitors and it is extensively use in electrical battery [4].…”

Section: Introductionmentioning

confidence: 99%

A review article on recent trends in effect of Dielectric and a.c. conductivity in transition metal oxide based CuO composite

Kumar,

Hooda,

Kumar

2023

IJARESM

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This article consists to measure recent trends in various properties by mixing/doping with various metal oxide composite mixed with CuO. The studies have been carried out to check frequency and temperature dependency on dielectric constant for both imaginary and real part. In some compound, it was found that dielectric constant increases with increasing frequency with a particular temperature and particular frequency after that there is reduction in the value of Dielectric. It was also studied that how dielectric constant works as a function of percentage of dopant atoms. a.c. conductivity dependency was studied with varying frequency and temperature. With increasing frequency and increasing temperature ac conductivity increase upto a finite value. The ball milling period vs conductivity was also studied for various transition metal oxide based CuO Composites. Milling is good upto a finite value of time. After that finite value ac conductivity decrease.

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“…This issue is similar to the challenges faced by traditional BaTiO 3 materials and other GDP materials. 4–7…”

Section: Introductionmentioning

confidence: 99%

Pioneering dielectric materials of Sn-doped Nb_0.025Ti_0.975O₂ ceramics with excellent temperature and humidity stability for advanced ceramic capacitors

Mingmuang,

Chanlek,

Takesada

et al. 2024

RSC Adv.

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Synthesis and enhanced dielectric properties of copper oxidenanoparticles

Cited by 17 publications

References 19 publications

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

A review article on recent trends in effect of Dielectric and a.c. conductivity in transition metal oxide based CuO composite

Pioneering dielectric materials of Sn-doped Nb_0.025Ti_0.975O₂ ceramics with excellent temperature and humidity stability for advanced ceramic capacitors

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Synthesis and enhanced dielectric properties of copper oxidenanoparticles

Cited by 17 publications

References 19 publications

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

A review article on recent trends in effect of Dielectric and a.c. conductivity in transition metal oxide based CuO composite

Pioneering dielectric materials of Sn-doped Nb0.025Ti0.975O2 ceramics with excellent temperature and humidity stability for advanced ceramic capacitors

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Product

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Pioneering dielectric materials of Sn-doped Nb_0.025Ti_0.975O₂ ceramics with excellent temperature and humidity stability for advanced ceramic capacitors