一种Au1.5Pt1Co1三元合金胶体溶液的制备方法及检测对苯二酚的电化学传感器

• Format: Patent
• Language: Chinese
• Published: 08.11.2022
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICS; POWDER METALLURGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TESTING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

本发明公开了一种Au1.5Pt1Co1三元合金纳米胶体溶液的制备方法，将聚乙烯吡咯烷酮和庚酸分别溶解在N,N-二甲基乙酰胺溶剂中，氯铂酸和硝酸钴逐步滴加至上述澄清溶液中并进行超声处理，随后加入氯金酸，搅拌、超声至溶液澄清，加入水合肼，反应后得到Au1.5Pt1Co1三元合金纳米胶体溶液。经无水乙醇洗涤、离心，并配成一定浓度合金胶体乙醇溶液，滴涂在玻碳电极表面制备出Au1.5Pt1Co1/GCE电极，然后在其表明进行L-半胱氨酸单体的电化学聚合，构筑出poly(L-Cys)/Au1.5Pt1Co1/GCE电极并应于对苯二酚的电化学传感检测。本发明的优点：该方法制备的Au1.5Pt1Co1可在一步还原作用下形成三元合金纳米粒子，制备工艺简单，能耗低；poly(L-Cys)/Au1.5Pt1Co1/GCE对对苯二酚(HQ)的高灵敏度、高选择性和高稳定性检测。 The invention discloses a preparation method of an Au<1. 5>Pt Co ternary alloy nano colloidal solution. The method comprises steps of dissolving polyvinylpyrrolidone and heptanoic acid in N, N-dimethylformamide; dropwise adding chloroplatinic acid and cobalt nitrate into the clear solution step by step carrying out ultrasonic treatment, then adding chloroauric acid, stirring, carrying out ultrasonic treatment until the solution is clear, adding hydrazine hydrate, and reacting to obtain an Au<1. 5>Pt Co ternary alloy nano colloidal solution; washing with absolute ethyl alcohol and carrying out centrifuging; preparing an alloy colloid e