High-Performance Hydrazine Sensor Based on Graphene Nano Platelets Supported Metal Nanoparticles

被引：18

作者：

Liu, Yi ^{[1
]}

Qiu, Zhipeng ^{[1
]}

Wan, Qijin ^{[1
]}

Wang, Zhaohao ^{[1
]}

Wu, Kangbing ^{[2
]}

Yang, Nianjun ^{[1
]}

机构：

[1] Wuhan Inst Technol, Sch Chem & Chem Engn, Key Lab Green Chem Proc,Minist Educ, Hubei Key Lab Novel Reactor & Green Chem Technol, Wuhan 430073, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China

来源：

ELECTROANALYSIS | 2016年 / 28卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Hydrazine; AuPd nanoparticles; Graphene; Electrodeposition; GLASSY-CARBON ELECTRODE; ELECTROCATALYTIC OXIDATION; PASTE ELECTRODE; ION; NANOTUBES; PLATFORM; SURFACE; OXIDE; FILM;

D O I：

10.1002/elan.201500531

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Surface coating of graphene nano platelets with gold-palladium nanoparticles (AuPd NPs) was conducted via potentiostatic electrodeposition from a mixture of HAuCl4 and H2PdCl4. AuPd NPs were characterized using SEM, TEM, XRD and energy dispersive X-ray spectroscopy. The AuPd NPs with the diameter of about 30-60nm were alloyed and well-dispersed on the graphene surface. Electrochemistry of hydrazine on AuPd NPs was investigated using cyclic voltammetry and chronoamperometry, indicating high electrocatalytic ability of AuPd NPs towards oxidation of hydrazine. Under the optimized conditions, the oxidation current was linear to the hydrazine concentration in the range of 0.02-166.6 mu M. The calculated detection limit was 5nM (S/N=3).

引用

页码：126 / 132

页数：7

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