Microwave-assisted synthesis of Pd-Ru-Re/f-MWCNTs nanocatalyst for efficient catalytic reduction of chromium and pesticide

Veerakumar, Pitchaimani; Sangili, Arumugam; Chen, Shen‐Ming; Manavalan, Shaktivel; Karuppusamy, Naveen

doi:10.1016/j.colsurfa.2023.131744

Cited by 6 publications

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“…The averaged particle crystalline size was estimated by Scherrer's eq 1 using the (111) peak of the Pt−Ni@PCN sample. 51 = D B…”

Section: Resultsmentioning

confidence: 99%

“…In addition to the above factor, the peak broadening demonstrates the formation of nanocrystalline particles, which aids in enhancing the active sites. The averaged particle crystalline size was estimated by Scherrer’s eq using the (111) peak of the Pt–Ni@PCN sample D = 0.89 λ κ α B 2 θ .25em cos θ max Where D = average size, λ κα = X-ray wavelength, θ max = the maximum angle, and B 2θ = half-peak width.…”

Section: Resultsmentioning

confidence: 99%

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Octahedral Pt–Ni Alloy Nanoparticles Decorated on 3D Interconnected Porous Carbon Nanosheets for Voltammetric Determination of Dihydroxybenzene Isomers

Veerakumar,

Sangili,

Chen

et al. 2023

ACS Appl. Nano Mater.

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Ultrathin three-dimensional (3D) interconnected porous carbon nanosheets (PCNs) derived from Moringa oleifera barks (commonly known as the drumstick tree) with electrochemical (EC) sensor performance was employed as the carbon precursor. In this study, we described a simple one-step pyrolysis technique to generate hierarchical PCN using a high-temperature pyrolysis and KOH activation procedure. Using the microwave-solvothermal approach, platinum–nickel bimetallic octahedral nanoparticles were decorated on ultrathin 3D PCN (referred to as Pt–Ni@PCN). The morphological, structural, and EC properties of the Pt–Ni@PCN nanocomposite were well characterized. Using cyclic voltammetry and linear sweep voltammetry, the dihydroxybenzene (DHB) isomers hydroquinone, catechol, and resorcinol were identified individually as well as simultaneously. The screen-printed carbon electrode-modified nanocomposite [Pt–Ni@PCN/screen-printed carbon electrode (SPCE)] served as an outstanding electron (e–)-transfer mediator for DHB isomer oxidation, yielding limits of detection of 0.0093, 0.0263, and 0.0529 μM, respectively. Also, the Pt–Ni@PCN/SPCE sensor has exceptional selectivity, long-term durability, reproducibility, repeatability, and anti-interference. Furthermore, the proposed sensor can be exploited to detect simultaneously environmental pollutants in river, lake, and tap water samples with good recovery rates.

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“…The averaged particle crystalline size was estimated by Scherrer's eq 1 using the (111) peak of the Pt−Ni@PCN sample. 51 = D B…”

Section: Resultsmentioning

confidence: 99%