Energy storage super hydrophobic

Are flexible supercapacitors good for portable energy storage?

Portable energy storage is developing rapidly with the miniaturization and integration of devices, and flexible supercapacitors are one of the important development directions. Nevertheless, the performance of most supercapacitors will be dramatically degraded after being eroded by water droplets or repeatedly stretched.

Are superhydrophobic surfaces mechanically robust?

The mechanical robustness of our superhydrophobic surfaces was demonstrated using tape-peeling tests, Taber abrasion tests (American Society for Testing and Materials standard) and scratch tests using an ultra-sharp object (Supplementary Figs. 24 – 26).

What are superhydrophobic surfaces used for?

Provided by the Springer Nature SharedIt content-sharing initiative The ability of superhydrophobic surfaces to stay dry, self-clean and avoid biofouling is attractive for applications in biotechnology, medicine and heat transfer1–10.

What is the optimum regime for superhydrophobicity and mechanical stability?

As shown in Fig. 1f, an optimum regime emerges around α ≈ 120° in which both superhydrophobicity and mechanical stability can be balanced and guaranteed. The second and third design features of this strategy are therefore a low f micro and an α value of approximately 120°.

How were superhydrophobic nanostructures constructed?

The superhydrophobic nanostructures were constructed using hydrophobic fumed silica nanoparticles (7 nm diameter, AEROSIL RX300, NIPPON AEROSIL CO., LTD., Tokyo, Japan) dispersed in acetone (Kanto Chemical Co. Inc., Tokyo, Japan).

What is a superhydrophobic supercapacitor?

The integrated superhydrophobic supercapacitor has a specific capacitance of 97.2 F/g at a current density of 0.8 mA/cm 2, and a capacitor retention rate of 95.5% after 3500 cycles. Furthermore, it can withstand bending 2000 times and 24 h of immersion with either strong acid or alkali and can achieve long-term underwater work (3500 h).