中北大学信息与通信工程学院
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穆磊磊, 王康谊. 二氧化钛表面接触电位差测试设计与分析[J]. 传感器与微系统, 2023,(1):34-37+42.
穆磊磊, 王康谊. 二氧化钛表面接触电位差测试设计与分析[J]. 传感器与微系统, 2023,(1):34-37+42. DOI: 10.13873/J.1000-9787(2023)01-0034-04.
作为光催化剂模型材料的金红石型二氧化钛(110)结构,同时针对金红石型二氧化钛(110)提出了接触电位差(CPD)的2种测试方法,包括二次扫描法与原子追踪2D测试法。基于超高真空超低温调频原子力显微镜与开尔文探针力显微镜(UHV-ULT-NC-AFM/KPFM)测试技术,通过对探针的修饰,完成了金红石型二氧化钛(110)表面CPD的表征。实验发现由于Smoluchowski效应,二氧化钛(110)表面台阶上CPD可减少0.2 V
同时研究了CPD减少与光催化活性的关系。为后期相关研究实验奠定了基础。
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