Solvothermal Preparation of ZnO Nanorods as Anode Material for Improved Cycle Life Zn/AgO Batteries

Ullah, Shafiq; Ahmed, Fiaz; Badshah, Amin; Altaf, Ataf Ali; Raza, Ramsha; Lal, Bhajan; Hussain, Rizwan

doi:10.1371/journal.pone.0075999

Cited by 21 publications

(16 citation statements)

References 23 publications

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“…The XRD pattern of Zn 2+ ‐FNAC (Fig. f) showed the characteristic peak of zinc at 34.4, 36.2, and 47.5° with the diffraction planes at (002), (101) and peaks at 2 θ values of 11.3, 12.9, 15.8, 18.0, 20.1, 22, 25.05, 25.6, 26.6, and 30.9° due to surface functionalization. The immobilization of MICE in Zn 2+ ‐FNAC was confirmed with the XRD pattern, (Fig.…”

Section: Resultsmentioning

confidence: 99%

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

Saranya

Sekaran

2016

Biotech and App Biochem

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The mixed intracellular enzyme (MICE) from Citrobacter freundii, capable of degrading o-phenylene diamine (OPD), was extracted and characterized. Cofactors such as zinc and copper ions enhanced the MICE activity. The functionalized nanoporous-activated carbon (FNAC) matrix, zinc-impregnated FNAC matrix (Zn -FNAC), copper-impregnated FNAC matrix (Cu -FNAC), and zinc- and copper-impregnated FNAC matrix (Zn -Cu -FNAC) were prepared and characterized to immobilize MICE. The parameters such as time (0-240 Min), pH (1-10), temperature (20-50 ºC), amount of MICE (1-5 mg), particle size of carbon (100-600 μm), and mass of carbon (0.5-2.5 g) were optimized for immobilization of MICE on different FNAC matrices. The carrier matrices in the free and MICE immobilized form were characterized using SEM, FT-IR, XPS, XRD, thermogravimetric analysis (TGA), and DSC analyses. The kinetic and adsorption models for the immobilization of MICE on FNAC matrices were studied. The parameters such as time, pH, temperature, concentration of OPD, and agitation speed were optimized for the degradation of OPD using FNAC-MICE and MICE-immobilized metal-impregnated FNAC matrices. The maximum amount of pyruvic acid formed was found to be 133 μg/mg of OPD using Zn -Cu -FNAC-MICE matrix. The kinetic models were studied for the formation of pyruvic acid on OPD degradation and confirmed using FT-IR spectroscopy.

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Section: Resultsmentioning

confidence: 99%

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

Saranya

Sekaran

2016

Biotech and App Biochem

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“…33 In this process, the nonuniform current density distribution among the porous structure 28,29,77 and the concentration gradients in the interphase electrolyte/electrode 78 are also responsible of this zinc anode shape changes resulting in a porosity decreases and loss of active surface area. To achieve this target, small particles are preferred to increase the surface area and porosity, 81 although such kind of initial electrode characteristics might be lost during the charge/discharge cycling conditions to which the anode is exposed over the lifecycle. 33 As it has been explained above, a porous structure of zinc anode is needed to enhance the electrode-electrolyte interface.…”

Section: Active Materialsmentioning

confidence: 99%

“…79,80 The optimum porosity values for a secondary the zinc electrode are suggested to be between 60% and 80%. To achieve this target, small particles are preferred to increase the surface area and porosity, 81 although such kind of initial electrode characteristics might be lost during the charge/discharge cycling conditions to which the anode is exposed over the lifecycle. For example, the full charging of the battery has the tendency to decrease the porosity, whereas highly discharged battery promotes an enhancement of the porosity.…”

Section: Active Materialsmentioning

confidence: 99%

A brief overview of secondary zinc anode development: The key of improving zinc-based energy storage systems

et al. 2017

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Summary Electricity will increasingly be produced from sources that are geographically decentralized and/or intermittent in their nature. In consequents, there is an urgent need to increase the storage of energy to guarantee the continuity of energy supply. Rechargeable zinc‐air battery is a promising technology due to the high theoretical energy density and the abundant and environmentally benign materials that are used. In the state of the art, the information about secondary zinc anode for rechargeable zinc‐air batteries is scarce. The main development of the technology has been lately concentrated on the bifunctional air electrodes while the used zinc anode is mainly based on a planar zinc electrode providing low specific energy densities for the full system. This overview compiles the available information in the literature regarding the development and manufacturing of zinc anodes for electrical rechargeable batteries applications, where secondary porous zinc electrodes are generally desired. In this context, the zinc‐based anode electrode composition (namely, active material, binder, conductive material, current collector, and additives), pretreatments, and processing techniques are described and their impact on the zinc anode performance analyzed.

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“…For comparison, the XRD pattern of the bare iron substrate is recorded in Fig. 57 Aer annealing at 180 C for 70 min, the diffraction peak assigned to the Zn (101) plane becomes much stronger, indicating the preferential growth of the zinc nanostructures in the (101) orientation (Fig. Several strong peaks which are derived from the iron substrate can be seen obviously (JCPDS card#06-0696).…”

Section: Morphology and Elemental Compositionmentioning

confidence: 99%

Controllable fabrication of stable superhydrophobic surfaces on iron substrates

Gao

Lü

et al. 2015

RSC Adv.

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Stable superhydrophobic structures were successfully prepared on iron substrates by etching in hydrochloric acid followed by zinc coating. The zinc film was electrochemically deposited on the etched iron substrate and then annealed at 180 C. The morphology and chemical composition of the prepared surfaces were investigated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscope (AFM), energy-dispersive X-ray (EDX) analysis and X-ray photoelectron spectroscopy (XPS). The wetting properties of the surfaces upon each processing step were evaluated using water contact angle (WCA) measurements. At the optimal condition, the surface displayed a superhydrophobic character with a WCA of about 163 AE 2 and a low sliding angle of about 0 AE 2 . The experimental conditions, such as electrolyte concentration, electroplating time, annealing condition, and etching time were investigated to determine their effects on the superhydrophobicity. It was also demonstrated that the as-prepared superhydrophobic surfaces exhibited anti-corrosion properties and a long-term stability. The freezing properties of the superhydrophobic surfaces were also investigated. Scheme 1 Schematic illustration of fabricating superhydrophobic surface on iron substrate. 40658 | RSC Adv., 2015, 5, 40657-40667 This journal is

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Solvothermal Preparation of ZnO Nanorods as Anode Material for Improved Cycle Life Zn/AgO Batteries

Cited by 21 publications

References 23 publications

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

Cofactor‐embedded nanoporous activated carbon matrices for the immobilization of intracellular enzymes and degradation of endocrine disruptor

A brief overview of secondary zinc anode development: The key of improving zinc-based energy storage systems

Controllable fabrication of stable superhydrophobic surfaces on iron substrates

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