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化学化工学院学术报告

【来源:兰州大学化学化工学院 | 发布日期:2018-04-10 】     【选择字号:
应兰州大学化学化工学院邀请,英国莱斯特大学化学系物理化学与纳米化学教授,英国皇家协会化学会Fellow,莱斯特大学化学系纳米化学实验室主任杨生福教授来我校进行学术交流并作学术报告,欢迎广大师生参加。
 
报告人:杨生福

  目:Superfluid Helium: A New Frontier of NanoChemistry

  间:2018416日上午900-10:30

  点:校本部第二化学楼101

Abstract

Helium droplets are clusters of helium whose size can vary over a huge range, spanning a few dozen to in excess of 1011 helium atoms.[[1]]They possess some unique properties that are important for both physical chemistry and nanoscience, such as 1) a very low temperature (0.37 K), 2) superfluidity, 3) the ability to add materials sequentially, and 4) the chemical inertness of helium.This presentation will focus on the recent progress in nanochemistry using superfluid helium droplets as the nanoreactors in my group.A series of exploratory experiments will be reported, including the fabrication of single crystalline nanoparticles, core-shell nanoparticles and nanowires.[[2],[3]] A major breakthrough in nanomagnetics, namely, ferromagnetism in antiferromagnetic chromium,[[4]] and ferromagnetic nanoparticles with the atomic magnetic moments,[[5]] will be highlighted. Finally, striking observations of multiply quantized vortices in superfluid 4He and single Au atom catalyzed ion-molecule reactions will be addressed.

Biography

Prof. Shengfu Yangobtained a BSc degree in Tsinghua University, a MSc degree in Dalian Institute of Chemical Physics and a PhD degree at University of Science and Technology of China. He has worked in several world-class laboratories in China (USTC), France (Université Joseph Fourier), United States (Massachusetts Institute of Technology) and Finland (University of Helsinki), where he led a number of research programmes and acquired a wide range of experience in physical chemistry.He joined the University of Leicester in 2003 and was awarded a prestigious EPSRC Advanced Research Fellowship in 2006, before being appointed to an associate professorship in 2011. At Leicester, his research focuses on superfluid helium droplets, covering both Physical Chemistry and NanoChemistry. He is currently an international leader in novel nanoscience based on superfluid helium.

 

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[1]S. Yang and A. M. Ellis, Chem. Soc. Rev. 42, 472-484 (2013).

[2]A. Boatwright, C. Feng, D. Spence, E. Latimer, C. Binns, A. M. Ellis and S. Yang, Faraday Disc. 162, 113-124 (2013).

[4] S. Yang, C. Feng, D. Spence, A. Al Hindawi, E. Latimer, A. M. Ellis, et al., Adv. Mater. 29, 1604277 (2017).

[5]S. Yang, C. Feng, D. Spence, E. Latimer, A. M. Ellis, C. Binns, D. Peddis, S. S. Dhesi, K. N. Trohidou, Nature (in preparation).