Electrochemically synthesized polypyrrole/MWCNTs-Al2O3 ternary nanocomposites supported Pt nanoparticles toward methanol oxidation

Merati, Zohreh; Parsa, Jalal Basiri; Babaei-Sati, Rasoul

doi:10.1016/j.ijhydene.2018.09.110

Cited by 31 publications

(8 citation statements)

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“…Some recent studies reported the synthesis of CuONPs and Al 2 O 3 NPs by various techniques, including pyrolysis, sol-gel, sputtering, laser ablation and electrochemical reduction [23][24][25][26][27][28][29][30][31][32]. Sodeifian and Behnood [33] reported a microwave-assisted method for the synthesis of CuO/Al 2 O 3 nanocomposite for photocatalytic degradation of methylene blue removal from aqueous solution under UV irradiation.…”

Section: Introductionmentioning

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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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: Introductionmentioning

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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“…Figure 7 presented the chronoamperometric curves of the methanol on Pt/PEDOT/ERGO/GCE in N 2 saturated 0.5 M NaOH + 1 M CH 3 OH solution during 1200 s. As seen from Figure 7, the Faradaic currents decreased rapidly for 100 s which might be due to the poisoning intermediates produced during the oxidation process of methanol. 85 During 1200 s of operation, the current of Pt/PEDOT/ERGO/GCE was steadily stabilized and demonstrated remarkable stability with a final current of 4.36 mA cm À2 .…”

Section: Morphological Characterizationmentioning

confidence: 94%

Production of Pt decorated poly(3,4‐ethylenedioxythiophene)/ERGO/GCEas an efficient catalyst for methanol oxidation reaction

Mert

Karazehir

Mert

et al. 2023

J of Applied Polymer Sci

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In this study, Pt‐decorated poly(3,4‐ethylenedioxythiophene) (PEDOT) electrocatalyst was uniformly coated electrochemically reduced graphene oxide (ERGO) layer on glassy carbon electrode (GCE) has been created using appropriate procedures to facilitate the implementation of the methanol oxidation reaction (MOR). This multi‐layer catalyst was characterized in each production step via Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field‐emission scanning electron microscopy and energy‐dispersive x‐ray analysis (FESEM‐EDX) morphological analysis beside the electrochemical tests. The favorable structures of both ERGO and PEDOT increase conductivity and electrocatalytic activity toward methanol oxidation, which may create a suitable matrix for Pt loading thanks to the formation of much more active centers for methanol electrooxidation. The results demonstrate that the electrochemical surface area (ECSA) of Pt/PEDOT/ERGO/GCE was 39.1 m2 g−1, and it has a convenient mass activity (MA with 467 mA mg Pt−1) compared to that of commercial Pt/C. According to chronoamperometric analysis, the current density of Pt/PEDOT/ERGO/GCE was stable during the 1200 s of operation. It demonstrated remarkable stability with a final current density of 4.36 mA cm−2.

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“…The primary objective of this development was to create an innovative substrate for palladium (Pd) catalyst immobilization. Merati et al 126 reported synthesizing ternary nanocomposites consisting of PPy, MWCNTs, and aluminum oxide (PPy/MWCNTs-Al 2 O 3 ) supported Pt-NPs through an electrochemical method. Bian et al 127 synthesized carbon nano onions by employing a multistep method.…”

Section: Coprecipitation Synthesismentioning

confidence: 99%

A Review on Development of Carbon-Based Nanomaterials for Energy Storage Devices: Opportunities and Challenges

Waris,

Chaudhary,

Anwer

et al. 2023

Energy Fuels

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Electrochemically synthesized polypyrrole/MWCNTs-Al2O3 ternary nanocomposites supported Pt nanoparticles toward methanol oxidation

Cited by 31 publications

References 50 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

Production of Pt decorated poly(3,4‐ethylenedioxythiophene)/ERGO/GCEas an efficient catalyst for methanol oxidation reaction

A Review on Development of Carbon-Based Nanomaterials for Energy Storage Devices: Opportunities and Challenges

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