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- W2775285959 abstract "The biosynthesis of PdO and NiO nanoparticles (NPs) via Aspalathus Linearis natural extracts as reducing and capping agent and calcinated at 200 and 500 °C. High Resolution Electron Microscope (HRTEM) was used to determine the morphology of PdO NPs exhibited tetragonal and NiO NPs agglomerated quasi spherical shape. The average diameter for PdO NPs is (fparticle) ∼22.7 ± 4.3 nm and NiO NPs is ∼31.8 ± 5 nm. Selected Area Electron Diffraction (SAED) and X-ray diffraction confirmed both nanoparticles are polycrystalline. Mechanism of reaction is proposed and Infrared spectroscopy confirmed the chemical bonding of the natural extract to the NPs, at 451 and 683 cm−1 for Pd and PdO and 481 cm−1 NiO NPs. Cyclic voltammetry showed oxidation peak potential for PdO NPs was 0.5 and 0.64 V and reduction peak at 0.68 V. NiO NPs oxidation peak potential at 0.34, 0.51 and 0.67 V and reduction peak at 0.62 V. Nyquist plot showed the diameter of the semi-circular portion is proportional to the charge transfer resistance with PdO more conductive than NiO nanoparticles. Bode plot showed both NPs are semiconductors with phase angle value of 49.3° for PdO and 50.4° for NiO NPs." @default.
- W2775285959 created "2017-12-22" @default.
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- W2775285959 date "2018-07-01" @default.
- W2775285959 modified "2023-10-02" @default.
- W2775285959 title "Green synthesis of nickel oxide, palladium and palladium oxide synthesized via Aspalathus linearis natural extracts: physical properties & mechanism of formation" @default.
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- W2775285959 doi "https://doi.org/10.1016/j.apsusc.2017.12.116" @default.
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