讲座预告｜可再生能源，你了解多少？

2020年4月22日

第51个世界地球日即将到来

环84班与环境学院学习发展部将联合举办

“太阳能转换与可再生合成燃料”讲座

我们的活动面向全校师生，期待您的到来！

活动简介

自2015年以来，可再生能源能否为我们未来的社会提供动力已不再是个难题，更重要的是何时以何种方式为我们所用。在这次的演讲中，我们将目前的能源需求与各种可再生能源的数量联系起来。虽然太阳能的量十分充足，但我们必须周期性地来储存太阳能以满足目前的需求和生产。虽然硅基光伏发电的成本在不断下降，但这一需求却为目前相对廉价的太阳能发电增加了巨大的成本。尽管未来的电池技术可能适用于一昼夜的大规模能源存储，但对于长期(如季节性)的能量存储和长途运输而言，燃料确实是目前唯一实用的存储选择。

在这次演讲中，我们将介绍太阳能转换成可再生合成燃料的有关问题、利用太阳能分解水生产可再生氢以及它们与生物源二氧化碳进一步转化为碳基合成燃料的基本内容。在第二部分中，我们将讨论广泛应用可再生燃料，从而在2050年之前将二氧化碳排放量大幅减少至零的过程中面临的实际挑战。快速实施的关键问题是技术性，比如与现有能源基础设施的兼容性、生态约束、社会和经济因素。最后，我们将会安排问答环节。

Since 2015, the question is no longer whether renewable energies will power our future society, but when and how. In this talk, we put our current energy needs into context with the amount of different renewable energies. Although sufficient in principle, a daily and seasonal storage of solar energy is mandatory to bridge demand and production. This need adds significant cost to the relatively cheap solar electricity that is available today due to the falling costs of silicon-based photovoltaics. Although future battery technologies may be suitable for large scale energy storage over day/night cycles, fuels are really the only practical storage option for long term (e.g. seasonal) storage and for long haul transportation. In this talk, we will introduce the field of solar energy conversion to renewable synthetic fuels. Fundamental aspects of the production of renewable hydrogen from solar water splitting will be addressed, as well as their further conversion with biogenic carbon dioxide into carbon-based synthetic fuels. In a second part, we will discuss the practical challenges of an expeditiously wide-spread introduction of renewable fuels and thus significant reduction in CO2 emissions down to net zero by 2050. Key issues for a fast implementation are technical aspects such as compatibility with the existing energy infrastructure, ecological constraints, social factors, and economic considerations. And then, we will arrange a question and answer session.

嘉宾介绍

David Tilley 大卫·蒂利

1980年出生于美国。曾就读于佐治亚州亚特兰大市北部小镇卡特斯维尔高中。2002年，在乔治亚大学获得了化学学士学位，辅修西班牙语。随后前往西部继续深造，并于2007年在加州大学伯克利分校(University of California, Berkeley)获得了化学博士学位，师从马修·弗朗西斯(Matthew Francis)教授。在伯克利，他开创了一种新的过渡金属催化方法，用于蛋白质酪氨酸残基的位点选择性修饰，目的是基于病毒衣壳制造新的生物材料。之后, 加入了普林斯顿大学埃里克·索伦森教授的实验室进行博士后研究员的工作(2007 - 2009)。在这段时间里,他对能源问题产生了浓厚的兴趣并进入了一个未曾接触过的领域——如何利用水生成氢燃料。

他曾在瑞士EPFL的Michael Gratzel教授的实验室接受过NSF国际博士后的光电化学培训，主要从事赤铁矿光阳极的水氧化催化研究。2011-2014年，他在Gratzel实验室担任水分解课题小组组长，同时继续研究氧化铜光电阴极的析氢。自2015年2月起，David Tilley一直担任苏黎世大学化学系可再生能源分子方法助理教授，并拥有终身教职。

David Tilley was born in the United States in 1980. He attended Cartersville High School, in a small town north of Atlanta, Georgia. In 2002, he received his Bachelor’s degree in Chemistry from the University of Georgia, with a minor in Spanish. He then headed west to continue his studies, and in 2007 received his Ph.D. in Chemistry from the University of California, Berkeley under the supervision of Prof. Matthew Francis. At Berkeley, he pioneered a new transition metal-catalyzed method for site-selective modification of the tyrosine residues of proteins, with the aim of fabricating new biomaterials based on viral capsids. Afterwards, he joined the laboratory of Prof. Erik Sorensen at Princeton University as a postdoctoral researcher (2007-2009) in order to further hone his synthetic skills, pursuing a total synthesis of the polycyclic anti-tubercular natural product hirsutellone B. At this stage, his burgeoning interest in the energy problem became so great that he chose to dive into a completely new field to learn how to generate hydrogen fuel from water. He received training in photoelectrochemistry as an NSF International Postdoctoral Fellow in the laboratory of Prof. Michael Grätzel at the EPFL in Switzerland, working on water oxidation catalysis on hematite photoanodes. Following this postdoctoral fellowship, he served as Group Leader for the water splitting subgroup in the Grätzel laboratory from 2011-2014, while also continuing research on copper oxide photocathodes for hydrogen evolution. Since February 2015, David Tilley has been engaged as Assistant Professor of Molecular Approaches to Renewable Energies with tenure track in the Department of Chemistry.

Andreas Borgschulte安德烈亚斯·博舒尔特

安德烈亚斯·博舒尔特博士于2002年在德国布伦什维克大学获得物理学博士学位。在VU Amsterdam (NL) 进行博士后研究之后，他参与了在Helmholtz-zentrum Geesthacht（D）进行的关于储氢功能的国际研究项目。自2006年起，他担任瑞士联邦材料科学与技术实验室（Empa）氢谱学小组的组长，专注于研究可再生能源。安德烈亚斯·博舒尔特目前是苏黎世大学和苏黎世联邦理工学院的讲师，讲授纳米化学和能源技术化学分析。他发表了150多篇论文，h指数为43(依据谷歌学者的数据)。

Dr. Andreas Borgschulte received his PhD in physics from TU Braunschweig (D) in 2002. After a Postdoc at the VU Amsterdam (NL) he coordinated the international research project on hydrogen storage FuncHy at the Helmholtzzentrum Geesthacht (D). Since 2006 he is group leader of the group Hydrogen Spectroscopy at the Swiss Federal Laboratories for Materials Science and Technol-ogy (Empa) with focus on applied spectroscopy for renewable energy storage. He is lecturer at the University Zürich and ETH Zürich teaching NanoChemistry and Chemical Analysis for Energy Tech-nology. He (co)-authored more than 150 papers with an H-index of 43 (google scholar). In addition to his expertise in the science and technology of energy conversion, he is interested in exciting new concepts shaping the mobility of the future.

讲座时间：4月23日（校历第十周周四）下午4：00-5：00

面向对象：全体在校师生

讲座方式：Zoom会议

欢迎感兴趣的同学扫描下方二维码进群，群内将会有进一步通知。

Lecture time: 4:00-5:00 p.m. on April 23 (Thursday, the 10th week of the school calendar)

Target audience：All teachers and students in school

Venue: zoom cloud meeting

Interested teachers and students are welcome to scan the QR code below and enter the group. Further notice will be given in the group.

文案：纳日泰

排版：关晓语

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