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High yield synthesis of hydroxyapatite (HAP) and Palladium Doped HAP via a wet chemical synthetic route

Kamieniak, J, Bernalte, E, Foster, CW, Doyle, AM, Kelly, PJ and Banks, CE (2016) High yield synthesis of hydroxyapatite (HAP) and Palladium Doped HAP via a wet chemical synthetic route. Catalysts, 6 (8). ISSN 2073-4344

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Abstract

© 2016 by the authors; licensee MDPI, Basel, Switzerland. A novel procedure for the synthesis of both hydroxyapatite (HAP) and palladium doped HAP via a wet chemical precipitation method is described herein. X-ray Diffraction (XRD), Raman Spectroscopy, Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS) and Fourier Transform Infrared (FT-IR) Spectroscopy are utilised to characterise the synthesised material’s morphology, structure and crystallinity. The developed synthetic protocol produces high purity HAP with an average yield of 83.7 (±0.10)% and an average particle size of 58.2 (±0.98) nm, such synthesis has been achieved at room temperature and within a time period of less than 24 h. Additionally, in order to enhance the overall conductivity of the material, a range of Pd (2, 4 and 6 wt %) metal doped HAP has been synthesised, characterised and, for the first time, applied towards the competitive electrocatalytic detection of hydrazine, exhibiting a linear range of 50–400 μM with a limit of detection (3σ) of 30 µM.

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