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Polyacrylonitrile (PAN) film attached to n-GaAs, n-GaP photoelectrode surface by plasma polymerization has been studied. Both electrochemical behaviors and stability of the modified electrodes have been investigated. The results showed that the semiconductor electrodes with PAN film decreased photocorrosion in a certain degree, and their electrochemical characteristics and stability were improved remarkably after plasma doping. Cyclic voltammetric analysis demonstrated that the redox reaction occurred in I-PAN films could be carried out rapidly on electrode surfaces, in favor of the capture and transfer of photoinduced holes by the films to redox couples in solution. 相似文献
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目前居民在用的水表、热表、气表、和电表四种表计虽然在抄表付费流程上相似,但由于分属不同部门管理,无法形成资源共享,既浪费工作量又给居民带来不便;文章论述了四表合一的技术构架,提出了从主站,通信信道,现场设备3个方面对现有系统进行升级的方法;首先,介绍了协议转换器的主要设计原理和用电信息采集设备—集中器的上下行通讯协议的改进方法,并且扩展协议转换器多种下行通讯方式以匹配市场上水表、热表、气表通讯方式多样化的现状,在用电信息采集系统平台上增加协议转换器及升级现有集中器程序,通过现场简单布线快速经济的实现四表合一数据采集;按此方案布局的四表合一采集试点,项目建设简洁、迅速,抄表运行稳定,一次性采集成功率在95%以上。 相似文献
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