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报告题目 |
Designing and Synthesizing Materials at the Nanoscale for Advanced Energy Applications |
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报告时间 |
2012年6月7日下午4:00 |
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报告地点 |
合肥微尺度物质科学国家实验室，18层大楼一层报告厅（暂定） |
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摘要 |
How to significantly advance energy conversion and storage technologies, such as solar cells, solar fuel production from water splitting, and batteries, represents a key challenge faced by the scientific community. At the heart of the problem is our inability to tailor certain aspects of materials’ intrinsic properties without adversely altering others. As a result, researchers are currently working within serious constraints. Recent advances in materials research, particularly those focusing on morphology innovations at the nanoscale, may offer solutions to this problem at a fundamental level. Here, we present our recent efforts and some positive results toward this direction. We proposed and tested the idea of forming heteronanostructures, various parts of which can be purpose-designed independently. When combined together, these different parts contribute to the overall functionality in a complementary fashion, yielding materials with properties that have not been observed on simple structures. We will introduce the research within the context of a nanonet-based design, which is enabled by a unique two-dimensional crystalline material we discovered. We show that the nanonet solves the low conductivity problem many metal oxide semiconductors and battery electrode materials have. The resulting nanostructures exhibit better performance in solar water splitting and battery applications than their non-heteronanostructure counterparts do. A new door to electrode design for improved energy applications may be opened up by this approach. |
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报告人 |
Prof. Dunwei Wang,Boston College |
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报告人简介：⑴现在工作单位及职称 ⑵主要研究方向 ⑶学术成就简述（100字以内） Dunwei Wang graduated from the University of Science and Technology of China in 2000 with a B.S. degree in chemistry. He was then trained at Stanford University (with Hongjie Dai) between 2000 and 2005, where his Ph.D. thesis was awarded the Prize for Young Chemists by the International Union of Pure and Applied Chemistry. After two years’ of postdoctoral study with James R. Heath at Caltech, he joined the faculty of Boston College and is currently an Associate Professor of Chemistry there. His research concerns the development of new nanoscale materials that can be used for efficient solar energy conversion and storage. He is a recipient of an NSF CAREER award, a Sloan Research Fellowship and a Massachusetts Clean Energy Center (MassCEC) Catalyst award.Prof.Wang has given more than 29 invited talks worldwide. He has published 58 papers in J. Am. Chem. Soc., Angedw. Chem. Int. Ed., Int. J. Hydrogen Energy, ACS Nano, etc. | |
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接待单位联系人：俞书宏 电话：3603040 | |
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主办单位：研究生院，微尺度国家实验室，化学与材料科学学院，外办（港澳台办） | |