双金属功能化纳米材料Co_3O_4@AuPt电化学传感器测定水合肼

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英文篇名：Study on electrochemical sensor of hydrazine based on bimetal functional nanomaterials Co_3O_4@ AuPt 作者：叶罕章 ; 王涛 ; 张江坤 英文作者：YE Han-zhang;WANG Tao;ZHANG Jiang-kun;Yunnan Phosphate Chemical Group Co.,Ltd,Phosphate Resources Engineering Research Branch; 关键词：电化学传感器 ; 四氧化三钴 ; 贵金属 ; 纳米材料 ; 水合肼 英文关键词：Electrochemical sensor;;Cobalto-cobaltic oxide;;Noble metal;;Nano materials;;Hydrazine 中文刊名：FXSY 英文刊名：Chinese Journal of Analysis Laboratory 机构：云南磷化集团磷资源开发利用工程技术研究分公司; 出版日期：2019-03-11 08:53 出版单位：分析试验室 年：2019 期：v.38 基金：云南省自然科学基金项目(2014BA013)资助 语种：中文; 页：FXSY201903011 页数：5 CN：03 ISSN：11-2017/TF 分类号：58-62

摘要

采用一步水热合成法合成了具有二维尺寸的Co3O4纳米材料,再通过绿色合成法引入NaBH4还原H2Pt Cl6和HAuCl4,得到Co3O4@AuPt复合纳米材料。由于Co3O4优异的催化活性和AuPt纳米合金良好的导电性,建立了灵敏检测水合肼的电化学传感器。该电化学传感器的线性范围为:1. 0～100. 0μmol/L,100. 0～5000. 0μmol/L,检出限为0. 23μmol/L。方法用于检测河水中的水合肼,结果相对标准偏差小于2. 2%,加标回收率为103. 0%。
        The 2 D Co3 O4 nano meterial was prepared by a simple hydrothermal method. The Pt4 +and Au3 +precursor were reduced by NaBH4 and supported on the Co3 O4 to form the Co3 O4@ AuPt.Due to the high catalytic activity of the Co3 O4 and the excellent conductivity of AuPt nano alloy,the electrochemical sensor showed wide linearity in the range of 1. 0-100. 0 μmol/L and 100. 0-5000. 0 μmol/L,with the detection limit of 0. 23 μmol/L. The method has been applied to the determination of hydrazine in the real sample with the recover of 103. 0% and RSD lower than 2. 2%.

引文

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