通过改进的热溶剂胶体合成法制备了单分散的Ni12P5纳米粒子,并利用X射线衍射、透射电子显微镜、X射线光电子能谱、X射线能谱对Ni12P5纳米粒子的晶体结构、化学组成和形貌等进行了表征.基于单分散Ni12P5纳米粒子研制出的非酶葡萄糖传感器具有出色的性能,其快速响应时间小于3s,检测范围广(0.002～4.2 mmol·L-1),灵敏度高达1 572 mA·L·mol-1· cm-2,检测限低至0.8 μmol·L-1.此外,该传感器在用于人体血液中葡萄糖的实际检测中取得了满意的效果.%A non-enzymatic glucose biosensor was designed for the first time based on the employment of monodisperse Ni12P5 nanoparticles (NPs),which were fabricated by a modified one-pot hot-solution colloidal preparation method.The crystal structure,chemical composition and morphology of the Ni12P5 NPs was determined by using power X-ray diffraction,transmission electron microscopy,X-ray photoelectron spectra,X-ray energy dispersive spectrometer.The developed sensor has presented excellent performance which involved a quick response time less than 3 s,a broad detection ranging from 0.002 to 4.2 mmol· L-1,a high sensitivity up to 1 572 mA· L· mol-1·cm-2,and a detection limit as low as 0.8 μmol· L-1.Additionally,it can be used to detect the glucose in the human blood serum with satisfactory result.
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