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investigating the properties of cobalt phosphate nanoparticles synthesized by co-precipitation method
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نویسنده
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udeh jude n. ,nkele agnes c. ,obodo raphael m. ,nwodo innocent c. ,chime chinedu p. ,nwanya assumpta c. ,maazae malik ,ezema fabian i.
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منبع
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asian journal of nanoscience and materials - 2022 - دوره : 5 - شماره : 1 - صفحه:22 -35
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چکیده
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Cobalt phosphate (co3(po4)2) nanoparticles of varying precursor concentrations were extracted successfully by co-precipitation method and fabricated on the stainless and glass substrates using drop-casting method. the structural and morphological properties of cobalt phosphate (co3(po4)2) nanoparticles were investigated by x-ray diffraction (xrd) and scanning electron microscope (sem) techniques. elemental composition of cobalt phosphate nanoparticles was evaluated using energy dispersive x-ray spectroscopy (eds). the optical properties of cobalt phosphate (co3(po4)2) nanoparticles were characterized using uv visible spectrophotometer. the electrochemical analyses were assessed using three-reference electrode potentiostat. xrd characterization of the cobalt phosphate nanoparticles revealed monoclinic structure with the major prominent peak at (211) plane, whereas sem image of the particles showed anisotropic nano rectangular structure and irregular shape. the optical studies demonstrated good absorbance and transmittance within the visible region with direct band gap value in the range of 2.522 ev to 2.547 ev. the electrochemical studies revealed maximum specific capacitance of 1889.31 fg-1, energy and power density at 9.64 whkg-1 and 1260.13 wkg^-1, respectively for the synthesized nanoparticles.
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کلیدواژه
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cobalt phosphate ,coprecipitation ,drop casting ,band gap energy ,specific capacitance
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آدرس
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university of nigeria, department of physics and astronomy, nigeria, university of nigeria, department of physics and astronomy, nigeria, university of nigeria, department of physics and astronomy, nigeria. quaid-i-azam university, national center for physics, pakistan. northwestern polytechnical university, npu-ncp joint international research center on advanced nanomaterials and defects engineering, china, university of nigeria, department of physics and astronomy, nigeria, university of nigeria, department of agricultural and bioresources engineering, nigeria, university of nigeria, department of physics and astronomy, nigeria. ithemba labs-national research foundation, nanosciences african network (nanoafnet), south africa. university of south africa (unisa), unesco-unisa africa chair in nanosciences/nanotechnology, college of graduate studies, south africa, university of nigeria, department of physics and astronomy, nigeria. university of south africa (unisa), college of graduate studies, unesco-unisa africa chair in nanosciences/nanotechnology, south africa, ithemba labs-national research foundation, nanosciences african network (nanoafnet), south africa. university of nigeria, africa centre of excellence for sustainable power and energy development (ace-sped), department of physics and astronomy, nigeria. university of south africa (unisa), unesco-unisa africa chair in nanosciences/nanotechnology, college of graduate studies, south africa
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پست الکترونیکی
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fabian.ezema@unn.edu.ng
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Authors
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