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南京航空航天大学郭万林院士学术报告

报告题目：Emerging Hydrovoltaic Technology

报告人：郭万林院士（南京航空航天大学）

时间：2018年10月24日(周三)下午4:00-5:00

地点：图书馆一楼报告厅

报告摘要：

Water is not only the essence of life, but also the largest energy carrier on earth. Water covers about 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 solid states. In human history, through a variety of scientific principles, such as running water driven wheel, steam locomotives, water driven generator as well as the electrokinetic effects, the potential energy or kinetic energy of water can be converted into useful mechanical motion and electrical energy according to the principles of classical mechanics and electromagnetic dynamics. In recent years, we have theoretically and experimentally investigated the fluid-solid-electric coupling functionalization of graphene and other two-dimensional materials. It is found that carbon nanostructures can generate electricity from water energy by direct interaction with water, even by natural water evaporation from cheap carbon nanomaterials, a phenomenon that we termed as hydrovoltaic effect, which potentially extends the technical capability of water energy harvesting and enables creation of self-powered devices. Here, starting by presenting the water energy on the earth, fundamental properties of water and water-solid interfaces, we discussed basic mechanisms of harvesting water energy by carbon nanostructured materials and key aspects pertaining to water-carbon interaction. Experimental advances in generating electricity from water flows, waves, especially natural water-evaporation were then reviewed to show correlations in mechanisms and potential for integration, offering a prospect of harvesting energy from the nature cycle of water on the earth. Main challenges in promoting the energy conversion efficiency and scaling up the output power will be outlined, and finally discuss potential development and applications of the hydrovoltaic technology.

报告人简介：

 郭万林，博士，教授，中国科学院院士。现任南京航空航天大学纳米科学研究所所长，纳智能材料器件教育部重点实验室主任，机械结构力学及控制国家重点实验室副主任。长期从事新型功能材料与器件、飞机结构抗疲劳断裂设计方面的理论难题和关键技术的研究。建立了低维材料结构力-电-磁-热耦合的物理力学理论体系；在宏观工程环境中发现了流-固界面边界运动生电、气流生电和蒸发生电效应，突破了经典双电层动电理论。建立了飞机结构三维疲劳断裂理论、攻克了飞机结构三维损伤容限关键技术，成果被系统地用于飞机型号研制，解决了型号研制急需。在Nature Nanotech.、Nature Commun.、PRL、Adv. Mater.、JACS、Nano Lett.、JMPS等刊物发表学术论文400多篇，多次被选为封面，被SCI收录287篇、篇均被引20次；2014、2015、2016年连续入选爱思唯尔中国高被引学者榜单。

已申请中国发明专利21项，授权8项。1996年获国家杰出青年科学基金资助，1999年受聘教育部“长江学者奖励计划”特聘教授，2005年带领“纳尺度物理力学”团队入选教育部“长江学者创新团队”，2017年当选中国科学院院士。

2012年全国优秀科技工作，2013年获徐芝纶力学奖，《低维纳米功能材料与器件原理的物理力学研究》成果获2012年国家自然科学二等奖和2011年教育部自然科学一等奖（均为第一完成人）。已培养40多名博士，包括杰青、优青、青千、全国优博和优博提名等优秀人才。近10年在国际会议做大会、主题和邀请报告50多次。

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