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2019爱因斯坦世界科学奖获得者王中林院士将出席《十届会》作报告

放大字体  缩小字体 发布日期:2019-11-07  浏览次数:56
核心提示:第十届国际(中国)功能材料及其应用学术会议、第六届国际多功能材料与结构学术大会、首届国际新材料前沿发展大会。将于2016年11

“第十届国际(中国)功能材料及其应用学术会议、第六届国际多功能材料与结构学术大会、首届国际新材料前沿发展大会”。将于2016年11月22-25日在重庆召开。2019年爱因斯坦世界科学奖得主(Albert Einstein World Award of Science)王中林教授将出席大会作题为“Maxwell’s displacement current governed triboelectric nanogenerator for self-powered systems and blue energy”的报告。

  王中林院士,中科院北京纳米能源与系统研究所所长和首席科学家、佐治亚理工学院终身校董事讲席教授、Hightower终身讲席教授。王教授是2019年爱因斯坦世界科学奖(Albert Einstein World Award of Science)、2018年埃尼奖 (ENI award – The “Nobel prize”for Energy)、2015年汤森路透引文桂冠奖、2014年美国物理学会James C. McGroddy新材料奖、和2011年美国材料学会奖章(MRS Medal)等国际大奖得主。他是中科院外籍院士、欧洲科学院院士、加拿大工程院外籍院士,国际纳米能源领域著名刊物 Nano Energy (最新IF:15.548)的创刊主编和现任主编。

 

王院士是纳米能源研究领域的奠基人。他发明了压电纳米发电机和摩擦纳米发电机,首次提出自驱动系统和蓝色能源的原创大概念,将纳米能源定义为“新时代的能源”。王中林院士开创了压电电子学和压电光电子学两大学科,他提出的原创新物理效应引领了第三代半导体纳米材料的基础研究,使氧化锌纳米结构成为与碳纳米管和硅纳米线同等重要的一类材料研究体系。根据Google Scholar,王中林教授论文引用超23万次,标志影响力的H指数是228,目前在全球纳米科学与纳米技术领域总引用数和H指数排名世界第一;世界横跨所有领域前10万科学家统一综合排名第15名。

 

Maxwell’s displacement current governed triboelectric nanogenerator for self-powered systems and blue energy

 

Zhong Lin Wang

 

School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia USA

Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, China.

 

Contact electrification (triboelectrification) effect, the most fundamental effect for electricity, has been known for over 2600 years since ancient Greek time, but its scientific mechanism remains unclear. The study of triboelectrification is recently revived due to the invention of the triboelectric nanogenerators (TENGs) by using the coupling of triboelectrification and electrostatic induction effects, which is the most effective approach for converting tiny mechanical energy into electricity for powering small sensors. TENG is playing a vitally important role in the distributed energy and self-powered systems, with applications in internet of things, environmental/infrastructural monitoring, medical science, environmental science and security. In this talk, we first present the physics mechanism of triboelectrification for general materials. Secondly, the fundamental theory of the TENGs is explored based on the Maxwell equations. In the Maxwell’s displacement current proposed in 1861, the term eE/t gives the birth of electromagnetic wave, which is the foundation of wireless communication, radar and later the information technology. Our study indicates that, owing to the presence of surface polarization charges present on the surfaces of the dielectric media in TENG, an additional term Ps/t should be added in the Maxwell’s displacement current, which is the output electric current of the TENG. Therefore, our TENGs are the applications of Maxwell’s displacement current in energy and sensors. TENGs have three major application fields: micro/nano-power source, self-powered sensors and blue energy. We will present the applications of the TENGs for harvesting all kind mechanical energy that is available but wasted in our daily life, such as human motion, walking, vibration, mechanical triggering, rotating tire, wind, flowing water and more. Then, we will illustrate the networks based on triboelectric TENGs for harvesting ocean water wave energy, for exploring its possibility as a sustainable large-scale blue energy. Lastly, we will show that TENGs as self-powered sensors for actively detecting the static and dynamic processes arising from mechanical agitation using the voltage and current output signals.

 

[1]    Z.L. Wang and A.C. Wang “On the origina of contact electrification“, Materials Today, https://doi.org/10.1016/j.mattod.2019.05.016

[2]    C.Xu†, Y. Zi†, A.C. Wang†, H. Zou, Y. Dai, Xu He, P. Wang, A.C. Wang, P. Feng, D. Li, Z.L. Wang* “On Electron Transfer Mechanism in Contact-Electrification Effect”, Adv. Mater. 30 (2018) 1706790.

[3]    Z.L. Wang, “On Maxwell’s displacement current for energy and sensors: the origin of nanogenerators”, Materials Today, 20 (2017) 74-82.

[4]    Z.L. Wang, L. Lin, J. Chen. S.M. Niu, Y.L. Zi “Triboelectric Nanogenerators”, Springer, 2016. http://www.springer.com/us/book/9783319400389

[5]    Z.L. Wang “Triboelectric Nanogenerators as New Energy Technology for Self-Powered Systems and as Active Mechanical and Chemical Sensors”, ACS Nano 7 (2013) 9533-9557.

[6]    Z.L. Wang, J. Chen, L. Lin “Progress in triboelectric nanogenertors as new energy technology and self-powered sensors”, Energy & Environmental Sci, 8 (2015) 2250-2282.

 

 
 
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