二维织物材料已广泛应用于太阳能界面蒸发,然而织物基太阳能蒸发器要实现吸光材料与纤维之间的强相互作用,高效的输水能力,优异的脱盐性能和高蒸发率仍然具有挑战性.我们制备了一种织物交错复合水凝胶(FICH)用于高效的太阳能界面蒸发....二维织物材料已广泛应用于太阳能界面蒸发,然而织物基太阳能蒸发器要实现吸光材料与纤维之间的强相互作用,高效的输水能力,优异的脱盐性能和高蒸发率仍然具有挑战性.我们制备了一种织物交错复合水凝胶(FICH)用于高效的太阳能界面蒸发.由于酸化碳纳米管均匀分布在水凝胶中并与大分子链形成氢键,水可以通过超亲水织物连续泵入复合水凝胶中,从而降低水的蒸发焓.薄型FICH蒸发器具有优异的光热转换性能,具有高蒸发速率(2.47 kg m^(2)h^(-1)),强耐盐性,长期蒸发稳定性和耐久性.此外,FICH可以用于腐蚀性溶液和乳液的净化,在太阳能海水淡化中显示出广阔的应用前景.展开更多
Laser-accelerated high-flux-intensity heavy-ion beams are important for new types of accelerators.A particle-in-cell program(Smilei) is employed to simulate the entire process of Station of Extreme Light(SEL) 100 PW l...Laser-accelerated high-flux-intensity heavy-ion beams are important for new types of accelerators.A particle-in-cell program(Smilei) is employed to simulate the entire process of Station of Extreme Light(SEL) 100 PW laser-accelerated heavy particles using different nanoscale short targets with a thickness of 100 nm Cr, Fe, Ag, Ta, Au, Pb, Th and U, as well as 200 nm thick Al and Ca. An obvious stratification is observed in the simulation. The layering phenomenon is a hybrid acceleration mechanism reflecting target normal sheath acceleration and radiation pressure acceleration, and this phenomenon is understood from the simulated energy spectrum,ionization and spatial electric field distribution. According to the stratification, it is suggested that high-quality heavy-ion beams could be expected for fusion reactions to synthesize superheavy nuclei. Two plasma clusters in the stratification are observed simultaneously, which suggest new techniques for plasma experiments as well as thinner metal targets in the precision machining process.展开更多
基金financially supported by the National Natural Science Foundation of China(52103099)Qing Lan Project of Yangzhou University and Jiangsu Province+1 种基金the High-end Talent Project of Yangzhou Universitythe Opening Project of State Key Laboratory of Polymer Materials Engineering(Sichuan University)(sklpme2020-4-03)。
文摘二维织物材料已广泛应用于太阳能界面蒸发,然而织物基太阳能蒸发器要实现吸光材料与纤维之间的强相互作用,高效的输水能力,优异的脱盐性能和高蒸发率仍然具有挑战性.我们制备了一种织物交错复合水凝胶(FICH)用于高效的太阳能界面蒸发.由于酸化碳纳米管均匀分布在水凝胶中并与大分子链形成氢键,水可以通过超亲水织物连续泵入复合水凝胶中,从而降低水的蒸发焓.薄型FICH蒸发器具有优异的光热转换性能,具有高蒸发速率(2.47 kg m^(2)h^(-1)),强耐盐性,长期蒸发稳定性和耐久性.此外,FICH可以用于腐蚀性溶液和乳液的净化,在太阳能海水淡化中显示出广阔的应用前景.
基金support from the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDB34030000)the National Key R & D Program of China (No.2022YFA1602404)+2 种基金National Natural Science Foundation of China (No. U1832129)the Youth Innovation Promotion Association of the Chinese Academy of Sciences (No.2017309)the Program for Innovative Research Team (in Science and Technology) in University of Henan Province of China (No.21IRTSTHN011)。
文摘Laser-accelerated high-flux-intensity heavy-ion beams are important for new types of accelerators.A particle-in-cell program(Smilei) is employed to simulate the entire process of Station of Extreme Light(SEL) 100 PW laser-accelerated heavy particles using different nanoscale short targets with a thickness of 100 nm Cr, Fe, Ag, Ta, Au, Pb, Th and U, as well as 200 nm thick Al and Ca. An obvious stratification is observed in the simulation. The layering phenomenon is a hybrid acceleration mechanism reflecting target normal sheath acceleration and radiation pressure acceleration, and this phenomenon is understood from the simulated energy spectrum,ionization and spatial electric field distribution. According to the stratification, it is suggested that high-quality heavy-ion beams could be expected for fusion reactions to synthesize superheavy nuclei. Two plasma clusters in the stratification are observed simultaneously, which suggest new techniques for plasma experiments as well as thinner metal targets in the precision machining process.
