| 摘要 |
The present invention provides an electrochemical method for producing and storing hydrogen by the redox of zinc and water. The method comprises a closed system consisted of gas-generating electrode-electrolyte-zinc electrode, the gas-generating electrode and zinc electrode are respectively connected to external circuits, it is characterized in that, when hydrogen is to be produced, the external circuits are connected, water is reduced into hydrogen on the gas-generating electrode, and zinc is oxidized into zinc oxide on the zinc electrode; when hydrogen is to be stored, enough water is applied to the closed system, and the negative pole of power source is connected to the external circuit of zinc electrode, and the positive pole of power source is connected to the external circuit of gas-generating electrode, then current is applied, zinc oxide is reduced into zinc on the zinc electrode, and water is oxidized into oxygen on the gas-generating electrode, and then the oxygen is released. The method is widely used, and the operation thereof is simple, it is especially suitable for applying hydrogen source for hydrogen fuel cell, and the electric power generated thereof also can be utilized for generating electricity together with fuel cell. |
