报告时间：10月30日（星期一）上午10:00-12:00
报告地点：能源楼一号楼1楼会议室
报告人：梁骥博士，澳大利亚伍伦贡大学超导及分子材料所 研究员
报告摘要：
Oxygen reduction reaction (ORR) is the key reaction, which controls the overall performance of a variety of state-of-the-art devices, such as low-temperature fuel cells, lithium-air batteries, and oxygen detectors, etc. However, the ORRs in these devices are almost exclusively catalysed by Pt or its alloys, which are expensive, low-reserved, unstable, and environmentally unfriendly. Consequently, the commercialization of these promising energy storage/conversion devices has been severely hindered. With the purpose of solving these problems, extensive studies have been conducted in the exploration for an alternative metallic catalyst without Pt, which could be viable from the economical viewpoint. At the meantime, increasing attentions have also been paid to seeking for another class of metal-free catalysts, which are expected to be cheap, stable, and comparably active as Pt-based materials for ORR.
Here in this seminar, a series of our works, focused on the novel porous carbons decorated with multiple heteroelements or other active materials (graphite carbon nitride, g-C3N4) as highly active catalyst for ORR, will be presented. These new catalysts show very good ORR performance, which is closely comparable with commercial Pt/C. Besides, they also possess outstanding long-term durability and complete tolerance to fuel cross-over effect. All these excellent features make our materials promising candidates for the next generation energy devices.
These precisely-designed and carbon-based functional nanomaterials can also be transferred to the application of energy storage, due to their unique surface and structural characteristics. For example, a catalytic effect has also been observed on these materials when they are deployed in a Li-S battery, which has led to significant enhancement in the battery performance, including larger capacity, higher efficiency, and better cycling stability.
报告人简介:
梁骥博士经留学基金委支持于澳大利亚阿德莱德大学攻读博士学位，毕业后获中国科学院金属研究所葛庭燧奖研金项目支持从事新型电池材料的研究。目前在澳大利亚研究理事会（ARC）青年学者奖（DECRA）项目的支持下从事纳米储能材料与器件的基础及应用研究，所开发的材料用于新型非贵金属催化、锂硫电池、锂离子电池等领域。梁骥博士针对电催化及电池应用的具体要求，对材料的结构和表面化学进行合理设计和可控调节，得到了一系列的高性能电催化/电池材料，同时结合理论模拟，揭示了这类非（贵）金属材料在上述电化学体系中的反应机制。 近年来，其研究成果以学术论文的形式在Angew. Chem.、Adv. Mater.、Energy Environ. Sci.、J. Am. Chem. Soc.、Appl. Catal. B: Environ.、Energy Storage Mater.、Part. Part. Syst. Char.等期刊发表文章30余篇，其中多篇以封面、内封面、封底的形式发表，参与编写英文书籍多部。过去五年，其学术成果累计引用3400余次。
报告联系人：05T7组 唐晓璐
联系电话：82463721
