基于有限元模拟的丝网印刷电化学传感器的设计及制备  

Design and fabrication of screen-printing electrochemical sensor based on finite element simulation

作　　者：孙鹏程 杜海英 李瑞鑫 王敬 陈吉平[2] 卢宪波[2] SUN Pengcheng;DU Haiying;LI Ruixin;WANG Jing;CHEN Jiping;LU Xianbo(College of Mechanical and Electronic Engineering,Dalian Minzu University,Dalian 116600,China;Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China)

机构地区：[1]大连民族大学机电工程学院,辽宁大连116600 [2]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《传感器与微系统》2025年第2期108-111,115,共5页Transducer and Microsystem Technologies

基　　金：2022年辽宁省应用基础研究计划资助项目(2022JH2/101300098);大连化物所创新研究基金资助项目(DICP I202001);国家自然科学基金面上资助项目(22276185);辽宁省自然科学基金资助项目(2022-BS-103);中国博士后科学基金资助项目(2022M720618)。

摘　　要：丝网印刷电化学传感器在生物医学检测和环境分析等领域具有巨大的应用潜能。为了研究不同形状、尺寸的电化学传感器对循环伏安(CV)性能的影响,利用有限元模拟仿真技术对电化学传感器进行了建模和结构优化,基于CV法理论分析了电化学反应过程中电极表面反应物与生成物的浓度分布和扩散现象。采用丝网印刷工艺在聚偏二氟乙烯膜表面印制了碳基电化学传感器,并进行实验测试。仿真和实验结果表明:传感器的形状不会影响其CV特性,传感器的工作电极表面积越大,其响应曲线的峰值电流越大。在确保丝网印刷效果的前提下,选择最大工作电极面积12.56 mm^(2),以获得CV性能最佳的丝网印刷电化学传感器,为开发性能优良的一次性丝网印刷电极提供了一定的理论依据。The screen-printed electrochemical sensors have enormous application potential in biomedical detection and environmental analysis.In order to investigate the influence of different shape and sizes of electrochemical sensors on cyclic voltammetry(CV)performance,finite element simulation techniques are used for modeling and structure optimizing of the electrochemical sensors.Based on the theory of CV,the concentration distribution and diffusion phenomena of reactants and products on the electrode surface during the electrochemical reaction process are analyzed.Carbon-based electrochemical sensors are fabricated and experimentally tested using screen-printing technique on polyvinylidene fluoride membrane surface.Simulation and experimental results indicate that the shape of the sensor does not affect its CV characteristics,and the larger the working electrode surface area of the sensor,the higher the peak current of the CV response curve.Under the condition of ensuring the screen-printing effect,the maximum working electrode area of 12.56 mm^(2) is selected to obtain the optimal CV performance of the screen-printed electrochemical sensor,providing a certain theoretical basis for the development of disposable screen-printed electrodes.

关 键 词：丝网印刷技术 电化学传感器 电极结构 有限元模拟仿真 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]