In situ formation of Co3O4 nanoparticles embedded N-doped porous carbon nanocomposite: a robust material for electrocatalytic detection of anticancer drug flutamide and supercapacitor application

Devi, Ramadhass Keerthika; Ganesan, Muthusankar; Chen, Shen-Ming; Gopalakrishnan, Gayathri

doi:10.1007/s00604-021-04860-8

Cited by 26 publications

(10 citation statements)

References 36 publications

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“…36 The existence of Co−N bond suggests the formation of strong chemical interactions between the metal cobalt and the N heteroatoms in the carbon matrix. For C 1s spectra, the energies at 288.7, 286.4, 285.5, and 284.6 eV are attributed to C�O, N−C�O, C−N, and C�C/C−C bands (Figure 1f), respectively, 37 confirming the presence of abundant N heteroatoms in the carbon matrix. 38 In the O 1s spectra (Figure S3), the appearance of three peaks at binding energies of 533, 531.6, and 529.8 eV correspond to C−OH, C�O, and C−O�N bonds.…”

Section: Resultsmentioning

confidence: 80%

Metal/N-Doped Carbon Nanoparticles Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption

Zeng

Nie

et al. 2022

ACS Appl. Nano Mater.

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Metal–organic frameworks (MOFs) have diverse structures and compositions, inspiring the boundless enthusiasm and creativity of researchers in the field of electromagnetism. The synthesis of MOF-derived nanomaterials for electromagnetic wave (EMW) absorption with ultrathin matching thickness (below 1.6 mm) is highly desired and challenging. Here, we demonstrate a general synthesis strategy for metal (Co, Ni, Fe)-based MOFs, which transformed into metal/metal-oxide nanoparticles (NPs) of being coated by nitrogen (N)-doped graphitized carbon. The obtained carbon-coated NPs show excellent EMW absorption properties. Specifically, Co-based MOFs are pyrolyzed into rhombic dodecahedrons with numerous ultrasmall Co NPs coated by N-doped carbon (Co-NC core–shell NPs). The synthesized Co-NC core–shell NPs possess a unique porous structure, abundant defects, and doped N heteroatoms, resulting in good magnetic loss (eddy current loss), dielectric loss (multiple reflections, interfacial polarization, conduction loss), and impedance matching. Therefore, the Co-NC core–shell NPs exhibit an excellent EMW absorption property with a very strong reflection loss of −56.5 dB at a matching thickness of only 1.58 mm. The effective absorption bandwidth (EAB) is 4.4 GHz. In addition, the EAB between 1 and 5 mm in thickness is up to 13.2 GHz, which already includes all C bands and X bands, even the absolute S bands and Ku bands. This work provides an avenue to design high-performance EMW absorption devices based on MOF-derived nanomaterials.

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Section: Resultsmentioning

confidence: 80%

Metal/N-Doped Carbon Nanoparticles Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption

Zeng

Nie

et al. 2022

ACS Appl. Nano Mater.

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“…More precisely, the N (1s) spectra could be deconvoluted into three different N species: pyridinic N at (397.2 eV), pyrrolic N at (398.2 eV), and graphitic N (at 399.2 eV). 29 The high resolution spectrum [Figure 2(d)] of C (1s) showed a major peak centered at 283.2 eV, which belonged to the typical C−C bonds. The deconvoluted peaks of C (1s) spectra, situated at 284.6, 286.4 and 289.6 eV, corresponded to the binding energy of carbon in functional groups such as C−N, N−C�O, and O� C−O, respectively.…”

Section: Morphology and Structural Analysismentioning

confidence: 99%

Metal–Organic Framework for Aluminum based Energy Storage Devices: Utilizing Redox Additives for Significant Performance Enhancement

De,

Priya,

Halder

et al. 2024

ACS Appl. Mater. Interfaces

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There are various methods being tried to address the sluggish kinetics observed in Al-ion batteries (AIBs). They mostly deal with morphology tuning, but have led to limited improvement. A new approach is proposed to overcome this limitation. It focuses on the use of a redox additive modified electrolyte in combination with framework like materials, which have wider channels. The ordered microporous and interconnected framework of ZIF 67, with large surface area, effectively facilitates the diffusion of aluminum ions. Therefore, AIBs are able to exhibit a superior discharge capacity of 288 mAh g −1 at 0.2 A g −1 current density with robust cycling stability. The addition of potassium ferricyanide as a redox-active species in an aqueous solution of aluminum chloride (supporting electrolyte) leads to significant enhancement in the specific capacity with much higher cycling stability. Al-ion based BatCap devices can be assembled by using ZIF 67 as the cathode, ZIF 67 derived porous carbon as the anode, and a redox additive modified electrolyte. The BatCap device exhibits excellent energy density of 86 Wh kg −1 at a power density of 2 KW kg −1 , which is higher than reported aqueous AIBs. The ex situ characterization clearly explains the unexplored mechanism of redox additives in AIBs.

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“…Recently, Devi et al obtained Co 3 O 4 nanoparticles embedded in N-doped porous carbon derived from ZIF-67 by a calcination treatment. In addition, they attained a better active site along with a porous structure composite, which showed efficient activity toward determination of anticancer drug flutamide . Similarly, Kim et al prepared Fe- and N-doped porous carbon for ORR application, heterostructured porous carbon for lithium ion storage, and KOH-activated hollow ZIF-8-derived porous carbon for supercapacitor application due to the presence of a highly mesoporous structure.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, they attained a better active site along with a porous structure composite, which showed efficient activity toward determination of anticancer drug flutamide. 31 Similarly, Kim et al prepared Fe-and N-doped porous carbon for ORR application, 32 heterostructured porous carbon for lithium ion storage, 33 and KOH-activated hollow ZIF-8-derived porous carbon for supercapacitor application 34 due to the presence of a highly mesoporous structure. Kim et al synthesized Co, Fe, and N co-doped hollow carbon nanoboxes, which significantly induce the graphitization of carbon by a high carbonization process.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Electrochemical Sensing of Acetaminophen by Cobalt Oxide-Embedded Nitrogen-Doped Hollow Carbon Spheres

Duraisamy

Sudha

Dharuman

et al. 2023

ACS Biomater. Sci. Eng.

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With respect to sensor application investigations, hollow mesoporous carbon sphere-based materials of the spinel type of cobalt oxide (Co 3 O 4 ) and heteroatom-doped materials are gaining popularity. In this contribution, dopamine hydrochloride (DA) and cobalt phthalocyanine (CoPc) precursors were employed to construct a highly homogeneous Co 3 O 4 -embedded N-doped hollow carbon sphere (Co 3 O 4 @NHCS) by a straightforward one-step polymerization procedure. The resulting Co 3 O 4 @ NHCS materials may effectively tune the surface area, defect sites, and doping amount of N and Co elements by altering the loading amount of CoPc. The relatively high surface area, greater spherical wall thickness, enriched defect sites, and better extent of N and Co sites are all visible in the best 200 mg loaded Co 3 O 4 @NHCS-2 material. This leads to significant improvement in pyridine and graphitic N site concentrations, which offers exceptional electrochemical performance. Electrochemical analysis was used to study the electrocatalytic activity of Co 3 O 4 @NHCSs towards the sensing of pharmacologically active significant compounds (acetaminophen). Excellent sensor properties include the linear range (0.001−0.2 and 1.0−8.0 mM), sensitivity, limit of detection (0.07 and 0.11 μM), and selectivity in the modified Co 3 O 4 @NHCSs/ GCE. The authentic sample (acetaminophen tablet) produces a satisfactory result when used practically.

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In situ formation of Co3O4 nanoparticles embedded N-doped porous carbon nanocomposite: a robust material for electrocatalytic detection of anticancer drug flutamide and supercapacitor application

Cited by 26 publications

References 36 publications

Metal/N-Doped Carbon Nanoparticles Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption

Metal/N-Doped Carbon Nanoparticles Derived from Metal–Organic Frameworks for Electromagnetic Wave Absorption

Metal–Organic Framework for Aluminum based Energy Storage Devices: Utilizing Redox Additives for Significant Performance Enhancement

Highly Efficient Electrochemical Sensing of Acetaminophen by Cobalt Oxide-Embedded Nitrogen-Doped Hollow Carbon Spheres

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