Super Energy Absorption System Based on Nanofluidic Glycerol Solution

HL Liu and GX Cao, JOURNAL OF PHYSICAL CHEMISTRY C, 118, 25223-25233 (2014).

DOI: 10.1021/jp507411w

Nanofluidic behavior has been used to produce a high energy absorption system which can transfer the mechanical work (done by impact or blast) into the solidliquid interfacial energy. Increasing the liquid interface area by using nanoporous particles with high specific surface area is the typical way to increase the energy absorption density of system. In present work, we found that the energy absorption density is also highly sensitive to the species of liquid selected in a nanofluidic system. Using molecular dynamics (MD) simulations, the performance of nanofluidic energy absorption system (NEAS) based on glycerol solutions with different concentrations is investigated, and the effects of nanochannel size and loading rate on the system performance are also considered. With the increase of the concentration of glycerol (Phi), the energy absorption density of NEAS can be significantly increased; e.g., when the liquid changes from water (Phi = 0) to pure glycerol (Phi = 1), the energy absorption density of NEAS can be increased by up to three times.

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