Recently, Professor Wu Heng'an of the School of Engineering Science, University of Science and Technology of China, in the course of studying abroad, cooperated with the research team of Professor Andre Heim of the University of Manchester in the UK and published important research results. They used graphene oxide to make a new type of gas-permeable and water-permeable material. The magic of this material is that most liquids and gases cannot pass through it, but the water vapor can be unimpeded. The research results were published in the "Science" magazine published on January 27, which caused great repercussions and was reported by the BBC, Science Daily and other media.
Graphene was originally exfoliated from the graphite material, a two-dimensional crystal composed of carbon atoms. It is only one layer thick of carbon atoms and is currently the thinnest material in the world. André Heim and Konstantin Novoselov first produced graphene in 2004 and discovered some novel graphene physical properties, and therefore jointly won the 2010 Nobel Prize in Physics.
Professor Wu Heng'an's research team processed graphene into graphene oxide to make a thin film. The thickness of this thin film is only a few hundredths of a hair, but its strength and toughness are very good. Amazingly, this film has a special performance of gas and water permeability. In the experiment, most of the gas and liquid encapsulated with this film can not escape, showing good sealing, only water can evaporate as usual. They made an interesting experiment, using this film to seal a bottle of vodka, and as the water evaporated, the wine tasted stronger and stronger. The first author, Nair, said that the unique gas- and water-permeable properties make this new material likely to have broad application prospects.
Professor Wu Heng'an's main contribution in this work was to discover the water permeability mechanism of the material through theoretical analysis and molecular simulation, thus giving a reasonable explanation to the original experimental results and confirmed by further experimental results. Professor Wu Heng'an is the second author of the paper, and the Chinese University of Science and Technology is the third signature unit of the paper. The paper thanked in particular that "Thank you for the support of the young key teachers of the University of Science and Technology of China to go abroad for training programs".
In recent years, the Chinese University of Science and Technology has strengthened the training of young key teachers in the school while focusing on introducing outstanding young scholars from overseas. Since 2009, it has implemented the "Young Master Teachers Study Abroad Program", which aims to meet the needs of world-class research universities and accelerate the cultivation of a high-level team of young teachers with an international perspective. In 2010, the University of Science and Technology of China and the National Council for Studying Abroad signed a cooperation agreement to jointly train young key teachers, broadening the channel for selecting schools and increasing the number of candidates.
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