搜索:   联系我们 |  English 


    发布时间:2018-03-12 13:35:50    点击:1805

学术报告


题  目:Tailoring the Structure of GrapheneOxide for Specific Applications
报告人:Associate Professor YutaNishina
        Okayama Univ., Japan
时  间:2018年3月19日上午10:00
地  点:仙林化学楼 H201
 
报告摘要:
Grapheneoxide (GO) has widely been employed in various fields, but its structure and composition has still not been fully controlled. Based on the formation mechanism of GO, we have developed general strategies to control the oxidation degree of graphene-like materials with two types of methods: oxidation of graphite by KMnO4 in H2SO4 (oGO), and reduction of highly oxidized grapheneoxide by hydrazine (rGO). Even though the oxygen content was the same, oGOand rGOshowed different properties in adsorption ability, oxidation ability, and electron conductivity, because of the difference in persisting graphitic structure and defects. These results will be a guideline for production of tailor-made GO.
Applications such as conductive films, electrodes for lithium-ion batteries, supercapacitors, and catalysts often require surface functionalizationsto improve GO’s performances. Recently, adsorbents and membranes for water purification have also been recognized as promising applications of graphene-like materials. With our tailor-made GO, we developed catalyst, membrane, lubricant additive, and anode for Li-ion battery.
 
报告人简介:
Dr. YutaNishinais an associate professor at Okayama University, Japan. He started his research on organic chemistry at Okayama University. During his Ph.D. course, he joined in the research groups in MIT and Kobe University. He obtained Ph. D. on 2010, and started his academic carrier as assistant professor at Okayama University, and promoted to associate professor on 2014.
On 2012, he started to use nanocarbons, especially grapheneoxide, from a view point of organic chemistry. He is involved in projects toward industrial production and practical application of grapheneoxide and its composite materials.
 
江苏省真空学会纳米专委会  介观化学教育部重点实验室 南京大学化学化工学院 

地址:江苏省南京市栖霞区仙林大道163号南京大学化学楼    邮编:210023    电话:86-25-89682304   传真:86-25-89687761

© 2010-2018   南京大学 化学化工学院