Potential of zero charge-based capacitive deionization
US10793450B2 · kind B2 · utility
2Cited by
13References
13Claims
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Key dates
| Filing date | Dec 3, 2015 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/05
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention is a capacitive, aka electrostatic, deionization apparatus and method that solves the problem of short lifetime of conventional capacitive deionization (CDI) and of membrane capacitive deionization (MCDI) devices and methods by shifting the Potential of Zero Charge of electrode surfaces through surface modifications. Such electrode surface modifications provide very long lifetime capacitive deionization devices and methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.