Divided Electrochemical Cell and Low Cost High Purity Hydride Gas Production Process
US-2015345037-A1 · Dec 3, 2015 · US
Electrolytic reduction device and electrolytic reduction method
US11560637B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11560637-B2 |
| Application number | US-201917057515-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 17, 2019 |
| Priority date | May 22, 2018 |
| Publication date | Jan 24, 2023 |
| Grant date | Jan 24, 2023 |
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Abstract
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To improve the efficiency of a reduction reaction. A power source applies a voltage to an oxidation electrode immersed in an aqueous solution in an oxidation tank and a reduction electrode immersed in an aqueous solution in a reduction tank, the voltage having a voltage value that changes with a predetermined cycle to be a voltage value at which ions can be desorbed from a surface of the oxidation electrode and a surface of the reduction electrode during one cycle of the voltage change. The frequency of the voltage is set within a range of 10 Hz to 1 kHz.
First claim
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The invention claimed is: 1. An electrolytic reduction device in which an electric current is passed between an oxidation electrode and a reduction electrode to cause a reduction reaction in the reduction electrode, comprising: an oxidation tank for immersing and disposing the oxidation electrode in an aqueous solution; a reduction tank for immersing and disposing the reduction electrode in an aqueous solution; a proton exchange membrane disposed between the oxidation tank and the reduction tank; and a power source connected to the oxidation electrode and the reduction electrode; wherein the power source applies a voltage to the oxidation electrode and the reduction electrode, the voltage having a voltage value that changes with a predetermined cycle to be a voltage value at which ions can be desorbed from a surface of the oxidation electrode and a surface of the reduction electrode during one cycle of the voltage change, wherein a reference electrode is disposed in the reduction tank, the power source being electrically coupled between the reduction electrode and the reference electrode, wherein the voltage is an AC voltage with an amplitude of 6.0 volts peak-to-peak (Vpp) having a maximum value of 6.0 volts and a minimum value of 0 volts, and a 3.0 DC voltage, and wherein a frequency of the voltage is in a range of 60 Hz to 1 kHz.
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- What does patent US11560637B2 cover?
- To improve the efficiency of a reduction reaction. A power source applies a voltage to an oxidation electrode immersed in an aqueous solution in an oxidation tank and a reduction electrode immersed in an aqueous solution in a reduction tank, the voltage having a voltage value that changes with a predetermined cycle to be a voltage value at which ions can be desorbed from a surface of the oxidat…
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification C25B15/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).