简 历：Prof. Rufan Zhang is an assistant professor in the Department of Chemical Engineering, Tsinghua University. His research interests focus on the controlled synthesis and property study of carbon materials, energy storage, environmental protection, catalysis, etc. Prof. Zhang has published more than 44 peer-reviewed papers on prestigious journals such as Nature Nanotechnology, Nature Communications, Chemical Society Reviews, Accounts of Chemical Research, Advanced Materials, Nano Letters, ACS Nano, etc. Prof. Zhang received many prestigious honors and awards such as MIT Technology Review “35 Innovators Under 35”-China, Young Chemistry Awards by Chinese Chemical Society, the First Prize of the Natural Science Award for Outstanding Achievements of Scientific Research, Ministry of Education of China, Dimitris N Chorafas Foundation Award, Chorafas Foundation, Switzerland, Top 10 Academic Stars of Tsinghua University, Excellent Doctoral Dissertation of Tsinghua University, etc.
题 目：Ultralong Carbon Nanotubes: Structures, Synthesis and Properties
摘 要：Ultralong carbon nanotubes (CNTs) usually refer to the horizontally aligned CNT arrays with lengths up to centimeters or even decimeters grown on flat substrates by chemical vapor deposition. With the optimized growing conditions, we successfully synthesized half-meter long CNTs. They have perfect structures and extraordinary electrical and mechanical properties. In addition, Optical visualization of individual ultralong CNTs by chemical vapour deposition of titanium dioxide nanoparticles was realized. Moreover, we found the macroscale superlubricity in centimeters long perfect double-walled CNTs under ambient conditions. Recently, CNT bundles with defect-free, neat, unifom oriented, continuous, and stress free structure were successfully prepared, which showed a tensile strength over 80 GPa.