Loading...
Please wait, while we are loading the content...
Similar Documents
Electrodeposition of AuPdCu Alloy Nanoparticles on a Multi- Walled Carbon Nanotube Coated Glassy Carbon Electrode for
| Content Provider | CiteSeerX |
|---|---|
| Author | Xu, Fang Zhao, Lijuan Zhao, Faqiong Deng, Lizhi Hu, Ling Zeng, Baizhao |
| Abstract | AuPdCu nanoparticles were electrodeposited on a multi-walled carbon nanotube (MWCNT) film coated glassy carbon electrode (GCE). The particles were characterized by scanning electron microscope, X-ray diffraction and energy dispersive X-ray spectroscopy. It was found that they were well dispersed on the electrode surface and showed the features of alloy. The AuPdCu nanoparticles presented high electrocatalytic activity to the oxidation of hydrazine, and at the resulting AuPdCu-MWCNT/GCE electrode, hydrazine could produce a sensitive anodic peak in pH 7 phosphate buffer solutions. The peak potential varied with the atomic ratio of Pd/Au in the alloy nanoparticles. Under the optimized conditions, the oxidation current of hydrazine at 0.1 V (vs SCE) was linear to its concentration in the range of 0.1−306 μM (R2=0.9986) with a sensitivity of 1.26 μA μM-1, and the detection limit was down to 0.02 μM (S/N=3). The electrode also had good reproducibility and selectivity. It was applied to the determination of hydrazine in water samples and the recovery for standards added was 94−101%. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Aupdcu Alloy Nanoparticles Aupdcu Nanoparticles Phosphate Buffer Solution Alloy Nanoparticles Energy Dispersive X-ray Spectroscopy X-ray Diffraction Glassy Carbon Electrode Atomic Ratio Sensitive Anodic Peak Electron Microscope Detection Limit Multi-walled Carbon Nanotube Pd Au Good Reproducibility Aupdcu-mwcnt Gce Electrode Water Sample Optimized Condition Electrode Surface High Electrocatalytic Activity |
| Content Type | Text |
