片层纺锤形纳米CuO的制备及性能研究

室温下,以高纯铜片为阳极,石墨棒为阴极,聚乙二醇为分散剂,电解液pH=10的缓冲溶液,设定初始电压12 V.电解后,微波分解,制备了由片层组成的纺锤形纳米CuO（简称片层纺锤形纳米CuO）.扫描电子显微镜（SEM）、X-射线衍射仪（XRD）等表征样品的形貌、微观结构及其成分,循环伏安和计时电流法研究了该纳米CuO对H2O2氧化的催化作用.结果表明：所得产物是纯的单斜片层纺锤形CuO纳米晶,对H2O2的电化学检测具有较高的灵敏度,线性范围1.0μmol.L-1～1.0 mmol.L-1,检出限0.5μmol.L-1....

Full description

Saved in:
Bibliographic Details
Published in电化学 Vol. 17; no. 2; pp. 186 - 189
Main Author 范建凤 李丽青 黄玉峰 范楼珍
Format Journal Article
LanguageChinese
Published 2011
Subjects
H2O2
催化氧化
片层纺锤形纳米CuO
电化学
Online AccessGet full text

Cover

More Information
Summary:室温下,以高纯铜片为阳极,石墨棒为阴极,聚乙二醇为分散剂,电解液pH=10的缓冲溶液,设定初始电压12 V.电解后,微波分解,制备了由片层组成的纺锤形纳米CuO（简称片层纺锤形纳米CuO）.扫描电子显微镜（SEM）、X-射线衍射仪（XRD）等表征样品的形貌、微观结构及其成分,循环伏安和计时电流法研究了该纳米CuO对H2O2氧化的催化作用.结果表明：所得产物是纯的单斜片层纺锤形CuO纳米晶,对H2O2的电化学检测具有较高的灵敏度,线性范围1.0μmol.L-1～1.0 mmol.L-1,检出限0.5μmol.L-1.
Bibliography:35-1172/06
FAN Jian-feng,LI Li-qing,HUANG Yu-feng,FAN Lou-zhen （1.Department of Chemistry,Xinzhou Teachers University,Xinzhou 034000,Shanxi,China; 2.Department of Chemistry,Beijing Normal University,Beijing 100875,China）
flaked spindle-like CuO nanocrystals; electrochemical; H2O2; catalyse oxidation
A simple and efficient electrochemical route was developed for the synthesis of flaked spindle-like CuO nanocrystals using aqueous electrolyte and Cu sacrificial anode（graphite as the cathode） in an undivided cell at a constant potential mode under room temperature.The morphology,structure and component of CuO nanocrystals obtained were characterized by SEM and XRD.Flaked spindle-like CuO nanocrystals were successfully used to modify a GC electrode to detect H2O2 with cyclic voltammetry（CV） and amperometry（AC）.The results showed that the products were pure monoclinic CuO nanocrystals.The linear range for the determination of hydrogen peroxide is from 1.0 μmol·L-1 to 1.0 mmol·L-1,the detection limit is 0.5 μmol·L-1,wh
ISSN:1006-3471
2993-074X