集微区控温、测温与电化学检测于一体的新技术及其在电催化体系的应用研究

本项目拟发展和运用基于热电偶微/纳电极的微区控温、测温与电化学（活性）检测的新技术，对电催化剂在升温条件下的电化学行为进行研究。 以可升温和测温的热电偶微/纳电极制备为切入点，探索和发展在电化学体系中实现微区控温、测温和电化学检测的新技术，包括热电偶微/纳电极的制备、温度信号的采集以及与电化学信号的同步等， 研究温度对催化剂的电子转移速度影响、温度对活性物种的吸/脱附动力学的影响等基本问题。本项目力图搭建一个集温控、测量与电化学活性检测于一体的升温微电极系统，并在此平台上进一步发展应用热电偶微电极阵列并将其应用于催化剂高通量的筛选，期望应用于燃料电池、太阳能电池等与电催化相关的研究以及其他与温度相关的电化学研究中。预期研究结果包括：解决利用微电极在控温、测温与电化学（活性）检测及其在电催化体系的应用研究的一系列理论和技术难题。结果主要以2-3项专利或8-10篇国内外论文形式提供。

This project will develop and employ a new technique which is based on the micro/nano thermocouple electrode and able to combine local temperature control/detect with electrochemical measurement. This new technique will start from the fabrication of micro/nano thermocouple electrode which can be heated and employed for measurement of temperature in order to achieve the three functions including temperature control/detect and electrochemical measurement in one system..The project intends to solve the following key scientific issues: (1)the preparation of micro/nano thermocouple,(2) the temperature signal acquisition, (3) the synchronization of temperature signals with electrochemical signals, (4) the influence of the temperature on the electrons transfer rate of the catalyst at elevated temperature, (5) the influence of temperature on the adsorption/desorption of active species. This project seeks to establish a platform and further to apply the microthermoelectrodes array in the high throughput screening of catalysts, which will be useful in the fuel cell, solar cell and other temperature-related electrochemical studies, so as to lead them into more important application areas. Expected results include: the solution of related theoretical and technical problems about the application of micro/nano thermo electrode in local temperature control/detect and electrochemical measurement. The results will include 2-3 domestic patents and 8-10 domestic and foreign papers, and one international patent.