Titanium dioxide (TiO2)nanoparticles have been frequently employed in the environmental treatment and purification purposes as a cheap and highly efficient photocatalyst. A photocatalyst can facilitate the breakdown and removal of a variety of environmental pollutants at room temperature. TiO2 photocatalyst is the best candidatebecause of its strong oxidized ability, non-toxicity and longtherma...

Wind turbines operating in cold regions are prone to freezing winter, which can affect their performance and safety. To resolve this situation, the development of blade anti-icing technology has attracted widespread attention. In study, a type biochar/polypyrrole coating was obtained through synthesis on surface biochar. After characterization, it found that porous structure, irregular dents, b...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Bo Chang Name of the doctoral dissertation Hybrid Microassembly with Surface Tension Driven Self-alignment: Handling Strategies and Micro-fabricated Patterns Publisher School of Electrical Engineering Unit Department of Automation and Systems Technology Series Aalto University publication series DOCTORAL DISSERTATIONS 117/2013...

For an ordered array of critical volatile wetting droplets the formation of a super lattice by an Ostwald-ripening like competition process is considered. The underlying diffusion problem is treated within a quasistatic approximation and to first order in the inverse droplets distance. The approach is rather general but a square lattice and a triangular lattice are studied explicitly. Dispersio...

In this work, graphene/Ag (GA/Ag) composite aerogels with the micro rough porous structure and conductive property polydimethylsiloxane(PDMS) low surface energy were used to prepare super-hydrophobic cotton fabric (GA/Ag/PDMS@cotton) was successfully prepared. The morphologies, chemical composition, wettability, microwave absorption of GA/Ag/PDMS@cotton characterized. It shown that GA/Ag PDMS c...

Abstract We perform a numerical study of the longevity super-hydrophobic surface (SHS) in under-saturated, stationary liquid. numerically solve spatial-temporal evolution gas concentration liquid, time-variation mass flux out plastron, as well time required for plastron to be fully dissolved (i.e., lifetime). find that profiles at different times are self-similar, and reduces with (t) rate 1/t0...