Fechar

@Article{PinheiroRoVoVaTrCo:2020:VeAlCa,
               author = "Pinheiro, Rom{\'a}rio Ara{\'u}jo and Rosa, Filipe Menezes and 
                         Vol{\'u}, Ren{\^e} Martins and Vasconcelos, Get{\'u}lio de and 
                         Trava-Airoldi, Vladimir Jesus and Corat, Evaldo Jos{\'e}",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto de Estudos 
                         Avan{\c{c}}ados (IEAv)} and {Instituto de Estudos 
                         Avan{\c{c}}ados (IEAv)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Vertically aligned carbon nanotubes (VACNT) surfaces coated with 
                         polyethylene for enhanced dew harvesting",
              journal = "Diamond and Related Materials",
                 year = "2020",
               volume = "107",
                pages = "e107837",
                month = "Aug.",
             keywords = "Super-hydrophobicity, Dew harvesting, Carbon nanotubes, 
                         Hierarchical condensation, Jumping condensation.",
             abstract = "In this work we prepared vertically aligned carbon nanotubes 
                         (VACNT) based super-hydrophobic surfaces with enhanced dew 
                         condensation. Coating these VACNT with a nanometric polyethylene 
                         (PE) layer preserved morphology, but normalized surface energy 
                         increasing its super-hydrophobicity. Samples of as grown VACNT 
                         with the PE coating (VACNT-PE samples) and VACNT samples treated 
                         by CO2 laser and with PE coating (VACNT/ laser-PE samples) show a 
                         much higher condensation for low surface temperatures (TS < 288 
                         K). At this low temperature, it changes from a low adhesion Cassie 
                         Baxter wetting state to a more adhesive one. Despite this larger 
                         adhesion, water collection enlarges instead of decreasing. 
                         Hierarchical condensation is the most likely effect contributing 
                         for this further increase. The cage-like morphology left by laser 
                         tracks on VACNT/laser-PE sustain larger droplets that removes all 
                         water underneath and neighbor regions while moving. In these 
                         conditions the volume collection is over 30 times larger than at 
                         dew point, with a high volumetric efficiency.",
                  doi = "10.1016/j.diamond.2020.107837",
                  url = "http://dx.doi.org/10.1016/j.diamond.2020.107837",
                 issn = "0925-9635",
             language = "en",
           targetfile = "pinheiro_vertically.pdf",
        urlaccessdate = "28 abr. 2024"
}


Fechar