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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：化学工艺. 能源化工. 工业催化
办公地点：大连市凌工路2号大连理工大学西部校区化工实验楼C331室
联系方式：0411-84986355
电子邮箱：wencuili@dlut.edu.cn
Thermoregulated Phase-Transition Synthesis of Two-Dimensional Carbon Nanoplates Rich in sp(2) Carbon and Unimodal Ultramicropores for Kinetic Gas Separation
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论文类型：期刊论文
发表时间：2018-02-05
发表刊物：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
收录刊物：SCIE、EI、PubMed
卷号：57
期号：6
页面范围：1632-1635
ISSN号：1433-7851
关键字：carbon nanoplates; gas separation; phase transitions; physisorption; ultramicropores
摘要：The development of highly selective, chemically stable and moisture-resistant adsorbents is a key milestone for gas separation. Porous carbons featured with random orientation and cross-linking of turbostratic nanodomains usually have a wide distribution of micropores. Here we have developed a thermoregulated phase-transition-assisted synthesis of carbon nanoplates with more than 80% sp(2) carbon, unimodal ultramicropore and a controllable thickness. The thin structure allows oriented growth of carbon crystallites, and stacking of crystallites in nearly parallel orientation are responsible for the single size of the micropores. When used for gas separation from CH4, carbon nanoplates exhibit high uptakes (5.2, 5.3 and 5.1 mmolg(-1)) and selectivities (7, 71 and 386) for CO2, C2H6 and C3H8 under ambient conditions. The dynamic adsorption capacities are close to equilibrium uptakes of single components, further demonstrating superiority of carbon nanoplates in terms of selectivity and sorption kinetics.