Universidad Politécnica de Cartagena, ETSII, Center for Electrochemistry and Intelligent Materials, Paseo Alfonso XIII, Aulario II, 30203 Cartagena, Spain.
J Phys Chem B. 2012 Aug 2;116(30):9223-30. doi: 10.1021/jp302931k. Epub 2012 Jul 13.
Here we present the theoretical (electrochemical and polymeric) description of chronopotentiometric responses (under driven constant current) from reacting conducting polymers both, as films or taking part of electrochemical devices, that sense driving current and electrolyte concentration during reactive actuation. The attained sensing-actuation equations describe the potential, or the consumed electrical energy, evolution as a function of working and environmental variables: driving current, temperature, electrolyte concentration, or mechanical conditions. Good agreement between theoretical and experimental results is attained here by using polypyrrole films under flow of different currents or in different electrolyte concentrations. Being a general theoretical description, any reactive device based on the electrochemistry of conducting polymers or carbon based reactive compounds is expected to sense working and environmental conditions being described by those equations as tactile artificial muscles do. Only two connecting wires contain actuating (current) and sensing (potential) signals that are detected, simultaneously and at any actuating time, by the computer as mammalians brains do.
在这里,我们提出了在反应性导电聚合物(作为薄膜或作为电化学器件的一部分)的恒电流驱动下的计时电位响应(下文中简称 chronopotentiometric responses)的理论(电化学和聚合体)描述,这些聚合物在反应式致动期间既能感知驱动电流又能感知电解质浓度。所获得的传感-致动方程描述了作为工作和环境变量函数的电位或消耗的电能的演化:驱动电流、温度、电解质浓度或机械条件。通过在不同电流下或在不同电解质浓度下流动使用聚吡咯薄膜,我们在这里获得了理论和实验结果之间的良好一致性。作为一个通用的理论描述,任何基于导电聚合物或基于碳的反应性化合物的电化学的反应性器件都有望通过这些方程来感知工作和环境条件,就像哺乳动物的大脑一样。只有两根连接线包含致动(电流)和传感(电位)信号,这些信号可以像哺乳动物的大脑一样被计算机同时检测,并且可以在任何致动时间进行检测。