Nanoporous Transition Metal Oxide-Based Electrodes for Supercapacitor Application

Patil, Umakant M.; Patil, Vinod V.; Patil, Akash S.; Marje, Supriya J.; Gunjakar, Jayavant L.; Lokhande, C.D.

doi:10.1007/978-3-030-68462-4_24

Cited by 4 publications

(3 citation statements)

References 177 publications

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“…MnO 2 , as a typical representative of pseudocapacitive materials, can be the most promising substitute for RuO 2 due to its remarkable characteristics such as high theoretical specific capacitance and low cost. 172 However, the poor electrical conductivity of MnO 2 limits its application in the field of energy storage devices. In order to improve the shortcomings of this limitation, improve the conductivity and ion diffusion ability of MnO 2 , and significantly improve its electrochemical performance, researchers have carried out a lot of research work.…”

Section: Advances In Scs Based On Mno 2 Materials (Sscs)mentioning

confidence: 99%

Novel semiconductor materials for advanced supercapacitors

et al. 2023

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Section: Advances In Scs Based On Mno 2 Materials (Sscs)mentioning

confidence: 99%

Novel semiconductor materials for advanced supercapacitors

et al. 2023

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“…Inorganic pigments like iron oxides are known to be impure, metal contaminations are frequent. 8 Methods to clean up inorganic pigments by removing cations exist 92 and especially former problematic metals like mercury and cadmium 9,10 are nowadays found very infrequently in trace amounts only. 22,93 Highest metal concentrations in inks were found for iron, copper, aluminium and barium.…”

Section: Impuritiesmentioning

confidence: 99%

Hypersensitivity to permanent tattoos: Literature summary and comprehensive review of patch tested tattoo patients 1997–2022

2023

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We outline constituents of tattoo and permanent make-up ink with regard to inflammatory tattoo reactions and population-based confounders. The comprehensive review of patch-tested tattoo patients between 1997 and 2022 shows that tattoo allergy cannot be reliably diagnosed via patch testing with today's knowledge. Weak penetration and slow haptenization of pigments, unavailability of pigments as test allergens and a lack of knowledge concerning relevant epitopes hamper the diagnosis of tattoo allergy. Patch testing p-phenylenediamine and disperse (textile) dyes is not able to close this gap. Sensitization to metals was associated with all types of tattoo complications, although often not clinically relevant for the tattoo reaction. Binders and industrial biocides are frequently missing on ink declarations and should be patch tested. The pigment carbon black (C.I. 77266) is no skin sensitizer. Patch tests with culprit inks were usually positive with cheap ink products for non-professional use or with professionally used inks in patients with eczematous reactions characterized by papules and infiltration. Tape stripping before patch testing and patch test readings on Day 8 or 10 may improve the diagnostic quality. The meaningfulness of the categorical EU-wide ban of Pigment Green 7 and Pigment Blue 15:3 is not substantiated by the presented data.

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“…In particular, endeavours severely necessities highly active, efficient and cheaper material candidates for electrocatalytic water splitting and supercapacitor devices. Non‐noble metal electrocatalysts such as Fe, Mo, Ni, Co and derived sulfides 1,2 oxides, 3‐5 selenides, 6,7 tellurides, 8,9 phosphides 10 alloys and compounds have earned huge emphasis in recent decades. A fresh clan of layered two‐dimensional material labelled as MXenes (M n + 1 X n T x , where T x signifies ‐F, ‐O or ‐OH groups as surface termination, basically account for hydrophobicity) accomplished a special portfolio different energy storage and conversion dimensionalities owing to unusual chemical, thermal stabilities, metallic conductivity (up to 8000 S cm −1 ) 11 and high packing density(4 g cm −3 ) and especially the tunable redox chemistry at electrode surfaces.…”

Section: Introductionmentioning

confidence: 99%

Trends of earth‐abundant transition metal‐doped in CoSe ₂ microstructures towards improved water splitting and supercapacitor applications

Samal

Mane

Chakraborty

et al. 2022

Intl J of Energy Research

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Rising high-tech innovations have brought forth alternative energy demands that in turn provide significant fillip to dig for advanced energy storage as well as conversion technologies. An efficient, low-cost, noble metal-free bifunctional catalyst for water dissociation and high energy density supercapacitor electrode can be a promising solution for a sustainably greener future. Herein, we have demonstrated a convenient strategy of defect engineering by transition metal doping for cultivating efficient active sites. The work features a highly stable (90.56% capacitance retention and ~97.86% of coulombic efficiency after 5000 cycles) asymmetric Fe doped CoSe 2 //titanium carbide (MXene) device with an energy density of 28.78 Wh/Kg at a power density of 778.6 W/Kg at a potential window of 1.5 V. Electrochemical kinetic analysis for the best-performing iron-doped cobalt selenide catalyst exposed an overpotential (ɳ 10 ) of 157 mV (Tafel slope of 112 mV/dec) and 261 mV(Tafel slope of 57 mV/dec) for hydrogen and oxygen evolution respectively. Further, the structural and electronic properties were computed using first-principle calculations to address the modifications in electronic structures. Metal doping engineers density of states near Fermi level due to charge transfer from metal to the parent CoSe 2 , further the carrier density synergistically contributes towards the enhancement in quantum capacitance, overpotential for HER and OER thereby tuning the physicochemical properties.

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Nanoporous Transition Metal Oxide-Based Electrodes for Supercapacitor Application

Cited by 4 publications

References 177 publications

Novel semiconductor materials for advanced supercapacitors

Novel semiconductor materials for advanced supercapacitors

Hypersensitivity to permanent tattoos: Literature summary and comprehensive review of patch tested tattoo patients 1997–2022

Trends of earth‐abundant transition metal‐doped in CoSe ₂ microstructures towards improved water splitting and supercapacitor applications

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Nanoporous Transition Metal Oxide-Based Electrodes for Supercapacitor Application

Cited by 4 publications

References 177 publications

Novel semiconductor materials for advanced supercapacitors

Novel semiconductor materials for advanced supercapacitors

Hypersensitivity to permanent tattoos: Literature summary and comprehensive review of patch tested tattoo patients 1997–2022

Trends of earth‐abundant transition metal‐doped in CoSe 2 microstructures towards improved water splitting and supercapacitor applications

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Trends of earth‐abundant transition metal‐doped in CoSe ₂ microstructures towards improved water splitting and supercapacitor applications