System, device, and method for producing ion concentration gradient, and temperature-responsive electrolyte material
US-2019070555-A1 · Mar 7, 2019 · US
System, device, and method for producing ion concentration gradient, and temperature-responsive electrolyte material
US10695714B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10695714-B2 |
| Application number | US-201916385091-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2019 |
| Priority date | Aug 19, 2011 |
| Publication date | Jun 30, 2020 |
| Grant date | Jun 30, 2020 |
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Abstract
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A system for producing an ion concentration gradient and a temperature-responsive electrolyte material which are utilizable, for example, for efficiently converting heat energy that has been discarded into reusable energy or for efficiently recovering an acid gas, such as carbon dioxide is provided. A temperature-responsive electrolyte is used to produce an ion concentration gradient by means of a temperature gradient. The temperature-responsive electrolyte is used in the state of an aqueous solution and also in the state of a solid phase.
First claim
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What is claimed is: 1. A temperature-responsive electrolyte material for absorbing carbon dioxide, which is an aqueous solution of fine hydrogel particles obtained by copolymerizing a monomer ingredient having an ionizable basic group, a crosslinkable monomer ingredient, and (i) a monomer ingredient having a polar group and a monomer ingredient having a hydrophobic group, or (ii) a monomer ingredient having a polar group and a hydrophobic group, wherein in said (i) a monomer ingredient having a polar group and a monomer ingredient having a hydrophobic group, or said (ii) a monomer ingredient having a polar group and a hydrophobic group, hydrophobicity of the hydrophobic group is higher than hydrophobicity of hydrophobic group of N-isopropylacrylamide. 2. The temperature-responsive electrolyte material for absorbing carbon dioxide according to claim 1 , wherein the monomer ingredient having hydrophobic group or the monomer ingredient having a polar group and a hydrophobic group is N-t-butylacrylamide. 3. The temperature-responsive electrolyte material for absorbing carbon dioxide according to claim 1 , wherein the aqueous solution of fine hydrogel particles is obtained by copolymerizing the monomer ingredient having an ionizable basic group, the crosslinkable monomer ingredient, and (i) the monomer ingredient having a polar group and the monomer ingredient having a hydrophobic group, wherein in said (i) the monomer ingredient having a polar group and the monomer ingredient having a hydrophobic group, hydrophobicity of the hydrophobic group is higher than hydrophobicity of hydrophobic group of N-isopropylacrylamide. 4. The temperature-responsive electrolyte material for absorbing carbon dioxide according to claim 1 , wherein the aqueous solution of fine hydrogel particles is obtained by copolymerizing the monomer ingredient having an ionizable basic group, the crosslinkable monomer ingredient, and (ii) the monomer ingredient having a polar group and a hydrophobic group, wherein in said (ii) the monomer ingredient having a polar group and a hydrophobic group, hydrophobicity of the hydrophobic group is higher than hydrophobicity of hydrophobic group of N-isopropylacrylamide. 5. The temperature-responsive electrolyte material for absorbing carbon dioxide according to claim 3 , wherein the monomer ingredient having a hydrophobic group is N-t-butylacrylamide. 6. The temperature-responsive electrolyte material for absorbing carbon dioxide according to claim 4 , wherein the monomer ingredient having a polar group and a hydrophobic group is N-t-butylacrylamide.
Assignees
Inventors
Classifications
Actuators having a material for absorbing or desorbing a gas, e.g. with a fuel cell reaction or a metal hydride · CPC title
Electrodialysis; Electro-osmosis {; Electro-ultrafiltration; Membrane capacitive deionization} · CPC title
Fuel cells · CPC title
Organic polymers · CPC title
characterised by the chemical structure of the main chain of the ion-conducting polymer · CPC title
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Frequently asked questions
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- What does patent US10695714B2 cover?
- A system for producing an ion concentration gradient and a temperature-responsive electrolyte material which are utilizable, for example, for efficiently converting heat energy that has been discarded into reusable energy or for efficiently recovering an acid gas, such as carbon dioxide is provided. A temperature-responsive electrolyte is used to produce an ion concentration gradient by means o…
- Who is the assignee on this patent?
- Univ Kyushu Nat Univ Corp
- What technology area does this patent fall under?
- Primary CPC classification B01D53/62. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 30 2020 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).