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SUMMARY:Hydrovoltaics: from energy to Intelligence - Prof. Wanlin Guo\, Na
 njing University of Aeronautics and Astronautics
DTSTART:20230705T130000Z
DTEND:20230705T140000Z
UID:TALK202933@talks.cam.ac.uk
CONTACT:Burigede Liu
DESCRIPTION:In contrast to conventional technologies that harvest solar en
 ergy by directly converting the energy of light into electrical energy thr
 ough the photovoltaic effect and kinetic energy of water by mechanical sys
 tems\, hydrovoltaic effects generate electricity from the direct interacti
 on of graphene and nanostructured materials with water\, using the solar e
 nergy arriving the Earth indirectly1. \n\nWater is not only the essence of
  life\, but also the largest energy carrier on the earth. Water covers abo
 ut 70% of the earth's surface\, absorbing 70% of the solar energy arriving
  the earth\, and in the atmosphere it can exist in liquid\, gaseous and so
 lid states. In human history\, through a variety of scientific principles\
 , such as running water driven wheel\, steam locomotives\, water driven ge
 nerator as well as the electrokinetic effects\, the potential energy or ki
 netic energy of water can be converted into useful mechanical motion and e
 lectrical energy according to the principles of classical mechanics and el
 ectromagnetic dynamics2. In the recent decade\, hydrovoltaic effects inclu
 de waving potential3\, drawing potential4\, evaporation-induced electric p
 otential5 or evaporating potential6 have been found. With hydrovoltaic eff
 ects\, energy from flowing\, waving\, dropping\, condensing\, as well as e
 vaporating water can now be harvested\, significantly extending our capabi
 lity in harvesting environmental energy\, leading to the emerging hydrovol
 taic technology7 and hydrovoltaics: New ways of harvesting electricity fro
 m water8. \n\nIn the last few years\, intensive efforts have been devoted 
 to hydrovoltaics with notable developments made. The power generation has 
 been improved by several orders with incorporation of new materials and de
 vices\, putting the Hydrovoltaic Energy on the Way9.\n\nHere\, we will rev
 iew the recent advances in hydrovoltaics for harvesting environmental ener
 gy10\,11\, serving as a potential Negative thermal emission energy technol
 ogy12\, and envision the future directions for hydrovoltaics\, from hydrov
 oltaic energy\, to hydrovoltaic ecology and hydrovoltaic intelligence.\n\n
 Bio: Dr. Wanlin Guo Academician of Chinese Academy of Sciences\, chair Pro
 fessor in mechanics and nanoscience\, founder and director of the Key Labo
 ratory of Intelligent Nano Materials and Devices of Ministry of Education 
 and the Institute of Nanoscience of Nanjing University of Aeronautics and 
 Astronautics. He received the National Science Foundation of China for Dis
 tinguished Young Scholars in 1996 and the honor of Cheung Kong Scholars in
  1999. He obtained the National Nature Science Prize of China in 2012 and 
 the Ho Leung Ho Lee Foundation Mathematical Mechanics Prize in 2019. He ha
 s published 400+ refereed papers in journals such as Nature Nanotech\, Nat
 ure Comm.\, Phys. Rev. Lett.\, Nano Lett.\, J. Am. Chem. Soc.\, Adv. Mater
 .\, J. Mech. Phys. Solids et al.  His current research focuses on 1) three
  dimensional fatigue fracture and damage tolerance and durability design o
 f structures at high temperature\; 2) intelligent nano materials and devic
 es\, multiscale physical mechanics\, novel conception and technology for e
 fficient energy conversion\; 3) Hydrovoltaics and brain-like intelligence.
 \n
LOCATION:LR3A\, Department of Engineering
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