Novel pH microsensor based on a thin film gold electrode modified with lead dioxide nanoparticles

被引：0
|
作者：
Hassan Arida
机构：
[1] Taif University,Pharmacy College
[2] 888-Taif,undefined
[3] Saudi Arabia,undefined
[4] and Hot laboratories Center,undefined
[5] Atomic Energy Authority,undefined
来源：
Microchimica Acta | 2015年 / 182卷
关键词：
Lead dioxide nanoparticles; Thin film microsensor; pH measurements; Silicon-planar gold substrate; Microchips;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A highly sensitive thin-film pH micro-sensor has been fabricated by deposition of lead dioxide (β-PbO2) nanoparticles (NPs) on a planar gold electrode. The resulting pH microchip electrode displays excellent potentiometric response to pH values with a super-Nernstian slope of 84 mVpH−1 over the pH 0.25–13 range. The NPs were electrochemically placed on the planar gold substrate by low current deposition in combination with high voltage oxidation. The merits offered by this elaborated pH microsensor include fast response time, high sensitivity, reasonable selectivity, simple fabrication, long lifetime and the feasibility of miniaturization and integration.
引用
收藏
页码：149 / 156
页数：7
相关论文
共 50 条
  • [31] Polymer Brush Modified Electrode with Switchable Selectivity Triggered by pH Changes Enhanced by Gold Nanoparticles
    Sempionatto, Juliane R.
    Pedrosa, Valber A.
    INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND MATERIAL ENGINEERING (MSME 2014), 2014, : 271 - 277
  • [32] Aptamer biosensor for dopamine based on a gold electrode modified with carbon nanoparticles and thionine labeled gold nanoparticles as probe
    Xu, Yaqiong
    Hun, Xu
    Liu, Fang
    Wen, Xiaolong
    Luo, Xiliang
    MICROCHIMICA ACTA, 2015, 182 (9-10) : 1797 - 1802
  • [33] Nanostructured gold thin film electrode derived from surfactant-free gold nanoparticles for enhanced electrocatalysis
    Mie, Yasuhiro
    Okabe, Hirotaka
    Mikami, Chitose
    Motomura, Taisei
    Matsuda, Naoki
    ELECTROCHEMISTRY COMMUNICATIONS, 2023, 146
  • [34] High pyroelectric coefficient modified lead titanate thin films deposition using gold electrode
    Ahmed, M.
    Butler, D. P.
    ELECTRONICS LETTERS, 2013, 49 (15) : 952 - U59
  • [35] A novel voltammetric sensor based on a polyornithine film-incorporated gold nanoparticle modified electrode for the determination of ractopamine
    Ma, Xinying
    Sun, Zhanghua
    Chen, Meifeng
    Li, Fenghai
    Lv, Huiping
    Zhu, Qi
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2025, 20 (06):
  • [36] Electrochemical determination of methimazole using nanoporous gold film electrode modified with MoO2 thin film
    Tavakkoli, Nahid
    Soltani, Nasrin
    Sadeghi, Mehrnoosh
    Salavati, Hossein
    MICROCHEMICAL JOURNAL, 2019, 150
  • [37] GROWTH OF LEAD DIOXIDE ON A GOLD ELECTRODE IN THE PRESENCE OF FOREIGN IONS
    YEO, IH
    LEE, YS
    JOHNSON, DC
    ELECTROCHIMICA ACTA, 1992, 37 (10) : 1811 - 1815
  • [38] Anodic deposition of lead dioxide at Nafion® covered gold electrode
    Sanja Burazer
    Suzana Sopčić
    Zoran Mandić
    Journal of Solid State Electrochemistry, 2016, 20 : 3053 - 3059
  • [39] Anodic deposition of lead dioxide at NafionA® covered gold electrode
    Burazer, Sanja
    Sopcic, Suzana
    Mandic, Zoran
    JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2016, 20 (11) : 3053 - 3059
  • [40] Effect of fluoride ions on electrodeposition of lead dioxide at the gold electrode
    Velichenko, AB
    Girenko, DV
    Amadelli, R
    Danilov, FI
    RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 1998, 34 (03) : 298 - 301
12345