Renewable biopolymer-derived carbon–nickel oxide nanocomposite as an emerging electrode material for energy storage applications

Parveen, Nazish; Alsulaim, Ghayah M.; Alsharif, Shada A.; Almutairi, Hayfa Habes; Alali, Hasna Abdullah; Ansari, Sajid Ali; Ahmad, M. S.

doi:10.1016/j.jsamd.2023.100591

Cited by 12 publications

(4 citation statements)

References 63 publications

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“…From the ultrahigh resolution (UHR) images, a crystallographic analysis of the atomic planes was done using the fast Fourier transform method. The UHR image of a single NW (Figure A–E) shows a well-crystallized structure with interplanar distance ( d ) of 0.28 and 0.3 nm attributed to the (013) cubic plane of skutterudite CoSb 3 . − Similar interplanar distances were found among the NWs, confirming their uniform structure.…”

Section: Resultsmentioning

confidence: 60%

“…In the Co-rich segment, 0.21 nm were found, corresponding to the (100) plane of hexagonal Co while in the Sb-rich segment, 0.28 nm were associated with the (013) plane of cubic CoSb 3 . [35][36][37]43 Even the NWs are formed by a Co−Sb alloy, we call it a heterojunction because the two Co−Sb alloys forming the NWs have different band gaps. The heterojunction reported here is formed by CoSb 3 and Co 12.5 Sb materials, along the same NW.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Enache,

State,

Mihai

et al. 2024

Langmuir

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This work presents the synthesis of CoSb 3 one-dimensional (1D) thermoelectric nanomaterials using electrodeposition under galvanostatic conditions and polycarbonate membranes as a template (50 nm diameter pores). Cyclic voltammetry measurements have been performed to get preliminary information on the electrochemical reduction process of the involved species. Different current density values in the range 1−4 mA cm −2 have been applied, leading to the formation of nanowires (NWs) and micro-and nanomushroom caps, as evidenced by the scanning electron microscopy and scanning transmission electron microscopy investigations. Through fine-tuning of the current density the desired Co/Sb atomic ratio could be achieved. Energydispersive X-ray spectroscopy analysis showed the formation of CoSb 3 at 1.4 mA cm −2 , and it has also been confirmed by high-resolution transmission electron microscopy and micro-Raman spectroscopy. In this work, we present for the first time the fabrication of a CoSb 3 −Co x Sb y heterojunction on the same NW exhibiting Sbrich and Co-rich alloy segments, prepared by electrodeposition from the same electrolyte by simply varying the applied current density.

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Section: Resultsmentioning

confidence: 60%

Section: ■ Results and Discussionmentioning

confidence: 99%

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Enache,

State,

Mihai

et al. 2024

Langmuir

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“…For instance, Parveen et al developed hierarchical three-dimensional nanoflakes (H3DN) of nickel oxide (NiO) tailored for supercapacitor applications, achieving a specific capacitance of 2322.6 mF/cm 2 . Also, they fabricated chitosan-coated CDC@NiO, employing it as an active material for both half-cell and full-cell studies and exhibited a specific capacitance of 1101.10 F g –1 and exceptional cyclic stability . However, Ansari et al have reported the growth of NiO nanocubes on an rGO sheet to form nanohybrids through a one-step hydrothermal method, demonstrating high efficiency in degrading ciprofloxacin (Cipxn) (91.5%) and tetracycline (94.75%) under visible light irradiation .…”

Section: Introductionmentioning

confidence: 99%

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Barhoi,

Mahto,

Ali

et al. 2024

Langmuir

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Developing an improved synthesis method that controls the morphology and crystal phase remains a substantial challenge. Herein, we report phase and morphologycontrolled hydrothermal synthesis of tungsten oxides by varying acid concentration and utilizing glutathione (GSH) as a structural directing agent, together with the exploration of their applications in supercapacitors, photoconductivity, and photocatalysis. Orthorhombic hydrated tungsten oxide (WO 3 •0.33H 2 O) with nonuniform block and plate-like morphology was obtained at 3 M hydrochloric acid (HCl). In contrast, nonhydrated monoclinic tungsten oxide (WO 3 ) with smaller rectangular blocks was obtained at 6 M HCl. Further, the addition of GSH results in an increase in the surface area of the materials along with a narrowing of the band gap. Moreover, it plays a pivotal role in regulating the morphology through oriented attachments, Ostwald ripening, and the self-assembly of WO 3 nuclei. GHTO and GTO polymorphs showed pseudocapacitive behavior with the highest specific capacitances of 450 and 300 F g −1 at 0.5 A g −1 , maintaining 94 and 92% retention stability, respectively, over 1000 cycles at 2 A g −1 . Also, the synthesized materials displayed favorable photoconductivity under light irradiation, implying potential utilization in photovoltaic applications. Moreover, these materials exhibited remarkable photocatalytic performance in the degradation of methylene blue (MB) dye, establishing themselves as highly effective photocatalysts. Therefore, nanostructured tungsten oxide showcases its versatility, rendering it an appealing candidate for energy storage, photovoltaic systems, and photocatalysis.

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“…Nickel provides an avenue for additional charge-storage mechanisms via its faradaic reactions, thus offering an increase in energy storage without compromising the intrinsic high-power density of the carbon matrix. The HGC-Ni nanocomposite was engineered to capitalize on the rapid electron-transfer capabilities of graphitic carbon and the electroactive sites provided by nickel nanoparticles, thus presenting an ideal electrochemical profile for supercapacitor electrodes [22].…”

Section: Introductionmentioning

confidence: 99%

Catalytic and Capacitive Properties of Hierarchical Carbon–Nickel Nanocomposites

Hammud,

Aljamhi,

Al-Hudairi

et al. 2024

Catalysts

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Hierarchically graphitic carbon that contained nickel nanoparticles (HGC-Ni (1), (2), and (3)) were prepared by the pyrolysis of three metal complexes as follows: nickel 2,2′-biyridine dichloride, nickel terephthalate 2,2′-bipyridine, and nickel phenanthroline diaqua sulfate, respectively, in the presence of anthracene or pyrene. SEM indicated that the structure of the HGC-Ni samples consisted of nickel nanoparticles with a diameter of 20–500 nm embedded in a thin layer of a hierarchical graphitic carbon layer. The EDAX of HGC-Ni indicated the presence of nickel, carbon, and nitrogen. Chlorine, oxygen, and sulfur were present in (1), (2), and (3), respectively, due to the differences in their complex precursor type. XRD indicated that the nanoparticles consisted of Ni(0) atoms. The turnover frequency (TOF) for the reduction of p-nitrophenol (PNP) increased for catalysts HGC-Ni (3), (2), and (1) and were 0.0074, 0.0094, and 0.0098 mg PNP/mg catalyst/min, respectively. The TOF for the reduction of methyl orange (MO) increased for catalysts (3), (1), and (2) and were 0.0332, 0.0347, and 0.0385 mg MO/mg catalyst/min, respectively. Thus, nickel nano-catalysts (1) and (2) provided the highest performance compared to the nano-catalysts for the reduction of PNP and MO, respectively. The first-order rate constant (min−1) of HGC-Ni (3), with respect to the reduction of PNP, was 0.173 min−1, while the first-order rate constant (min−1) for the reduction of MO by HGC-Ni (1) was 0.404 min−1. HGC-Ni (3) had the highest number of cycles with respect to PNP (17.9 cycles) and MO (22.8 cycles). The catalysts were regenerated efficiently. HGC-Ni exhibited remarkable electrochemical capacitance characteristics in the present study. This material achieved a notable specific capacitance value of 320.0 F/g when measured at a current density of 2 A/g. Furthermore, its resilience was highlighted by its ability to maintain approximately 86.8% of its initial capacitance after being subjected to 2500 charge and discharge cycles. This finding suggests that this HGC-Ni composite stands out not only for its high capacitive performance but also for its durability, making it an attractive and potentially economical choice for energy-storage solutions in various technological applications.

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Renewable biopolymer-derived carbon–nickel oxide nanocomposite as an emerging electrode material for energy storage applications

Cited by 12 publications

References 63 publications

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Catalytic and Capacitive Properties of Hierarchical Carbon–Nickel Nanocomposites

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Renewable biopolymer-derived carbon–nickel oxide nanocomposite as an emerging electrode material for energy storage applications

Cited by 12 publications

References 63 publications

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Fabrication of Co–Sb Junction Nanowires by Galvanostatic Electrodeposition

Glutathione-Mediated Synthesis of WO3 Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Catalytic and Capacitive Properties of Hierarchical Carbon–Nickel Nanocomposites

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Product

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Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications