Electrocatalytically driven fast removal of moisture by condensation of vapor and water splitting
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- Electrocatalytically driven fast removal of moisture by condensation of vapor and water splitting
- Lee, Tae Won; Kim, Hee Jun; Park, Jang Su; Baik, Jeong Min
- Issue Date
- Elsevier Ltd
- NANO ENERGY, v.61, pp.295 - 303
- In this paper, an electrocatalytically driven fast removal of moisture adsorbed onto the surface to the air is described. It is a two-electrode electrochemical cell based on the nickel-copper-phosphide film as a biofunctional catalyst. The overpotentials for HER and OER are significantly reduced by the Cu incorporation to the nickel-phosphide, ascribed to the low charge transfer resistance. The long-term stability at high voltage (>10 V)is also obtained by introducing an oxygen-rich layer in the near-surface region of the film in the OER electrode. The devices are proven to remove water (pH 7.0)with a rate of approximately 0.6 ml/h at 10 V, reducing the water content in the air. A flexible cell with transparency over 90% is also fabricated and the water removal capability is found to maintain over 75% at a curvature of 0.18/cm.
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