报告题目： High performance rechargeable batteries to power a sustainable future
报告人：Guoxiu Wang
Director, Distinguished Professor
Centre for Clean Energy Technology
School of Mathematical and Physical Sciences
University of Technology Sydney
PO Box 123, Broadway, Sydney, NSW 2007
Australia

时 间：2017年8月28日（周一）下午2:30~3:30
地 点：新葡萄8883国际官网1号楼210会议室
主持人：侯仰龙 教授

摘要：

In this talk, I will report the development of advanced lithium-ion batteries, lithium-air batteries and sodium-ion batteries, based on materials architecture design.

Graphene nanosheets, tin-graphene and silicon-graphene nanocomposites have been prepared by various techniques. When applied as anode materials in lithium-ion batteries, they demonstrated enhanced electrochemical performances.1

Lithium-air battery is one of the most promising systems for meeting today’s stringent requirements as the power source for electric vehicles. The theoretical specific energy of the Li-O2 battery is 3,505 Wh kg?1, which is almost ten times higher than that of Li-ion batteries (387 Wh kg-1).  Porous graphene with different pore size architectures were synthesized as cathode catalysts for lithium-air batteries. Porous graphene exhibited significantly higher discharge capacities than that of non-porous graphene. The Ru nanocrystal decorated porous graphene exhibited an excellent catalytic activity with a high reversible capacity, low charge/discharge over-potential, and long cycle life.2 Furthermore, sodium-ion batteries were also investigated. 3

Sodium-ion batteries and potassium-ion batteries are being considered as a promising system for stationary energy storage and conversion, owing to natural abundance of sodium and potassium. Several electrode materials were synthesized as either cathode materials or anode materials for sodium-ion batteries and potassium-ion batteries.4-6

报告人简介:

Professor Guoxiu Wang is the Director of the Centre for Clean Energy Technology and a Distinguished Professor at University of Technology Sydney (UTS), Australia. Professor Wang is an expert in materials chemistry, electrochemistry, energy storage and conversion, and battery technologies. His research interests include lithium-ion batteries, lithium-air batteries, sodium-ion batteries, lithium-sulfur batteries, supercapacitors, hydrogen storage materials, fuel-cells, graphene, and chemical functionalisation of graphene. Professor Wang has published more than 390 refereed journal papers with an h-index of 67. His publications have attracted over 17,000 citations (Web of Science).

---

 

报告题目： Designing Semiconductor Nanomaterials for Photoelectrochemical Solar Energy Conversion

报告人： Lianzhou Wang
Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, St Lucia, 4072, QLD, Australia

时 间：2017年8月28日（周一）下午3:30~4:30
地 点：新葡萄8883国际官网1号楼210会议室
主持人：侯仰龙 教授

摘要：

The capability to design innovative semiconductor materials with desirable functionalities is a highly challenging task. In this talk, we give a brief overview of our recent progresses in designing semiconductor metal oxides materials for photoelectrochemical energy conversion including photocatalytic solar fuel generation and low cost solar cells. In more details, we have been focusing the following a few aspects; 1) band-gap engineering of layered semiconductor compounds including layered titanate, tantalate and niobate-based oxide compounds for visible light phtocatalysis, and 2) two-dimensional nanosheets/nanoplates of TiO2, Fe2O3 and WO3 as building blocks for new photoelectrode design，and 3) the design of semiconductor nanoparticles for low cost solar cells including perovskite solar cell applications.1-6 The resultant material systems exhibited efficient visible light photocatalytic performance and improved power conversion efficiency, which underpin important solar-energy conversion applications including solar electricity and solar fuel production.

报告人简介:

Lianzhou Wang (王连洲), 现为澳大利亚昆士兰大学化新葡萄8883国际官网终身教授，纳米材料研究中心主任,澳洲基金委未来学者。主要从事半导体纳米材料的合成及其在清洁能源领域的应用。1999年博士毕业于中国科学院上海硅酸盐研究所，1999年至2004年在日本国立产业技术综合研究所和日本国立物质材料研究机构做博士后研究。2004年起在澳大利亚昆士兰大学任项目研究员/ 澳洲基金委女王伊丽莎白学者，化新葡萄8883国际官网高级讲师(2007）, 副教授(2010)，教授(2012-)。先后在诸多国际期刊发表论文300多篇，专著章节12部，申请专利12项，作国际会议大会或邀请学术报告80余次。近年作为主要负责人（Chief Investigator）先后承担或参与了澳大利亚基金委、澳洲科学院、昆士兰州政府以工业界等40余项竞争性研究项目，总金额超过2300 万澳元。担任Journal of Nanoparticle Research 和科学通报英文版（Science Bulletin） 执行副主编。先后获得澳洲基金委女王伊丽莎白学者称号，昆士兰大学研究优秀奖，澳洲寻找未来之星奖（Scopus Young Researcher Award）, 澳洲基金委未来学者称号（Future Fellowship, 2012），入选澳洲基金委工程技术领域专家委员会（College of Experts）和英国皇家化学会会士。

---

 

报告题目：Towards More Reliable Lithium-Sulfur Batteries
报告人： Feng Li
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

时 间：2017年8月28日（周一）下午4:30~5:30
地 点：新葡萄8883国际官网1号楼210会议室
主持人：侯仰龙 教授

摘要：

Lithium-sulfur (Li-S) batteries have attracted tremendous interest because of their high theoretical energy density and cost effectiveness.1,2 The object of Li-S battery research is to produce batteries with more high energy density that at least outperforms state-of-the-art lithium-ion batteries. However, due to an intrinsic gap between fundamental research and practical applications, the outstanding electrochemical results obtained in most Li-S battery studies indeed correspond to low useful energy densities and are not really suitable for practical requirements.3 The Li-S battery is a complex device and its useful energy density is determined by several key parameters, most of which are often ignored, leading to the failure to meet commercial requirements.4

The purpose of this talk is to discuss how to pave the way for a reliable Li-S battery. From the perspective of fundamental research, high sulfur contents, high areal sulfur loadings and low electrolyte-to-sulfur ratios are essential requirements for achieving high practical energy density of a Li-S device. Possible solutions and some concerns regarding the optimization of these parameters are comprehensively discussed. Besides, problems related to a lithium metal anode in the Li-S system still remain a great challenge and further developments are needed for the stabilization and protection of the anode. Finally, the future directions and prospects in Li-S battery field are considered.

报告人简介:

Dr. Feng LI is a professor of the Institute of Metal Research, Chinese Academy of Sciences (IMR, CAS). He received his Ph.D. in materials science at IMR, CAS in 2001 supervised by Prof. Hui-Ming Cheng. He mainly works on the nano materials for clean energy such as electrode materials for lithium ion battery, lithium sulfur battery and supercapacitor. He has published about 200 papers on peer-reviewed journals such as Angew. Chemie, Energy & Environmental Science, Adv. Mater., Adv. Funct. Mater., ACS Nano, with more 20000 citations and H-index about 60. He is editor board of NEW CARBON MATERIALS and Energy Material Storage.

---