Diamond Chemistry
报告人：Nianjun Yang 教授
邀请人：韩宇教授
报告时间：2025年05月23日（星期五）14：00
报告地址：广州国际校区C3-a301
报告人简介：
Dr. Nianjun Yang has been a Professor of Electrochemistry and Catalysis at the Department of Chemistry andInstitute of Materials Research (IMO-IMOEC) of Hasselt University (Belgium)since March 2023. His Habilitation in the fields of Materials Science andSurface Engineering was finished in 2020 at the Institute of MaterialsEngineering of the University of Siegen (Germany). He was a team leader and a seniorresearcher at the University of Siegen and Fraunhofer Institute of AppliedSolid State Physics (Freiburg, Germany) after his three-year postdoctoralworking experience at the National Institute of Advanced Industrial Science andTechnology (Tsukuba, Japan) and the New Mexico State University (Las Cruces,NM, USA). His PhD degree was obtained from the National University of Fukui(Fukui Japan) in 2005. His research interest covers design, synthesis, andelectrochemical applications of various functional materials. He has acted/isacting as guest editor and advisory board member of several journals, editor ofbook series and books, as well as the organizer and board member of severalinternational conferences.
报告摘要：
Diamond, a sp3-carbon hybrid material,belongs to a wide bandgap semiconductor. Stemming from its excellent physicaland chemical properties, it has been known to be perfect for various mechanical,optical, thermal, and electronic applications. In addition to traditional hightemperature/high pressure method, the realization of the low-pressure chemicalvapor deposition (CVD) of diamond triggered novel aspects of diamond researchin laboratories and in industries all over the world. Particularly, the CVD-grown diamond films can become electrically conductive when they areheavily doped with boron. For example, boron-doped diamond films possess widepotential windows, low background currents, and long stability. They aretherefore recognized as one of the perfect electrodes in the fields ofelectroanalysis, electrochemical energy storage and conversion, pollutiondegradation, electrosynthesis, electrochemical biosensing, to name just a few.
In this presentation, the progress and achievements of conductivediamond films and their composites obtained in our group will be shared. Focusingon chemistry of diamond, this talk will start from the CVD growth of diamondmaterials (plasma chemistry), followed by the demonstration of unique chemicalfeatures of diamond materials (surface chemistry). Electrochemistry of diamondmaterials will be highlighted, mainly covering their applications in the fieldof biosensing (e.g., protein, DNA), electrochemical energy storage (e.g.,supercapacitors, batteries), and recent electrochemical energy conversion (e.g.,electrocatalysis) will be shown. The future research directions of diamondchemistry will be outlined and discussed.
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电子显微中心
2025年05月20日