Direct fabrication of catalytic metal nanoparticles onto the surface of a screen-printed carbon electrode
Direct fabrication of catalytic metal nanoparticles onto the surface of a screen-printed carbon electrode
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DOI：
10.1016/j.elecom.2006.06.019
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发表时间：
2006-08-01
影响因子：
5.4
通讯作者：
Tamiya, Eiichi
中科院分区：
文献类型：
--
作者：
Chikae, Miyuki;Idegami, Koutarou;Tamiya, Eiichi
研究了在丝网印刷碳条（SPCS）上电沉积法直接制备Au和Pt纳米粒子的工艺。通过扫描电子显微镜（SEM）和能量色散X射线能谱（EDS）对沉积在SPCS上的金属纳米颗粒进行了表征。随着电沉积时间的延长，工作电极上纳米粒子的密度和尺寸增大。电化学测试结果表明了金属纳米粒子修饰的SPCSs的催化活性。使用Au纳米颗粒修饰的SPCS（Au-SPCS）和Pt纳米颗粒修饰的SPCS（Pt-SPCS）结合循环伏安法（CV）研究了在0.1M HCl中析氢的检测。使用Pt-SPCS使用CV和计时库仑法（CC）研究了PBS（pH 7.4）中H2 O2的检测。在该测定中，H2 O2的线性校准范围为16 μ M至2 mM。电沉积和丝网印刷工艺的结合使得能够批量生产具有各种催化活性的电化学传感器。(c)2006 Elsevier B. V.保留所有权利。
The direct fabrication of Au and Pt nanoparticles by electrodeposition process on the screen-printed carbon strips (SPCS) has been investigated. The metal nanoparticles deposited on the SPCS were characterized by scanning electron microscopy (SEM), and energy dispersion X-ray spectrometry (EDS). The density and size of, the nanoparticles on the working electrode were increased with the electrodeposition time. The catalytic activity of the metal nanoparticle-modified SPCSs were demonstrated by the electrochemical measurements. The detection of hydrogen evolution in 0.1 M HCl was studied using both Au nanoparticle-modified SPCS (Au-SPCS) and Pt nanoparticle-modified SPCS (Pt-SPCS) in connection with cyclic voltammetry (CV). The detection of H2O2 in PBS (pH 7.4) was studied using the Pt-SPCS using CV and chronocoulometry (CC). In this assay, the linear calibration ranged from 16 mu M to 2 mM for H2O2. The combination of electrodeposition and screen-printing process enables the mass production of the electrochemical sensors possessing various catalyst activities. (c) 2006 Elsevier B.V. All rights reserved.