Recently, the research group of Professor Yang Weiqing from the School of Materials has made important progress in the field of carbon nanomaterials. The research results obtained by Southwest Jiaotong University as the first unit were published in the internationally renowned journal Nano (IF= 16.907) today.
Nano Today is a top periodical, with few articles published in the world and nanotechnology industry. This achievement has been strongly supported by the National Natural Science Foundation of China, Southwest Jiaotong University and College of Materials.
Under the guidance of UCLA Professor Yang Weiqing, Associate Professor Zhang Haitao and Professor Jun Chen (correspondent), Wang Qing, a master student of 20 18 in School of Materials, realized the controllable construction of carbon nanomaterials with different dimensions through molecular scissors shearing strategy, and elaborated its shearing mechanism in detail.
Different from the surface modification technology widely studied at present, they use molecular scissors to open the surface of carbon materials and realize the cutting on the molecular scale. At a certain temperature, zinc vapor and magnesium vapor will enter the carbon material, and once they encounter carbon dioxide, they will form a pair of molecular scissors, thus realizing the controllable cutting of carbon nano-materials.
The test shows that the carbon nano-materials under the action of molecular scissors not only have high specific surface area, but also have suitable pore size distribution. In PVA/Na2SO4 gel electrolyte system, the device shows an energy density of 4.63 MWh cm–3 (corresponding to a power density of 3,520 MWh cm–3).
The researchers believe that the molecular scissors shearing strategy proposed in this study will provide reference for the innovation of carbon nanomaterials on the one hand, and promote the development of energy storage, sensing and environmental restoration on the other hand. The research results were published in Nano Today magazine, titled "Cutting Carbon Nanomaterials with Molecular Scissors".