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Porphyrin/aluminum oxide nano-channel membrane and application thereof in energy conversion device

A kind of aluminum oxide nanometer and nanochannel technology, which is applied in the direction of generators, electrical components, generators/motors, etc. that convert kinetic energy into electrical energy, and can solve problems such as limiting transmembrane current flux

Active Publication Date: 2019-11-05
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing energy conversion devices mainly focus on converting the salinity gradient into electrical energy, which limits their transmembrane current flux, which is the most direct factor for improving power output under the premise of ensuring membrane selectivity.

Method used

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  • Porphyrin/aluminum oxide nano-channel membrane and application thereof in energy conversion device
  • Porphyrin/aluminum oxide nano-channel membrane and application thereof in energy conversion device
  • Porphyrin/aluminum oxide nano-channel membrane and application thereof in energy conversion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A specific preparation process of a porphyrin / alumina nanochannel membrane is as follows:

[0065] (1) A two-step anodic oxidation method is used to prepare an aluminum oxide film with one end sealed and a thickness of 50 μm and a surface pore diameter of 50 nm, washed, and naturally air-dried for use;

[0066] (2) preparation concentration is that the TPPS aqueous solution of 5mmol / L and concentration are 0.5mol / L sodium chloride aqueous solution, and the aluminum oxide film that step (1) makes is placed in the two chambers that fill TPPS aqueous solution and sodium chloride aqueous solution respectively The connection between the two tanks is used to isolate the electrolyte contained in the above two tanks;

[0067] (3) The deposition of 120min occurs simultaneously in the tanks on both sides of the aluminum oxide film arranged in step (2), and TPPS is deposited at the opening of the aluminum oxide film to self-assemble to form a TPPS nanofiber film with a thickness o...

Embodiment 2

[0070] A specific preparation process of a porphyrin / alumina nanochannel membrane is as follows:

[0071] (1) A two-step anodic oxidation method is used to prepare an aluminum oxide film with one end sealed and a thickness of 40 μm and a surface pore diameter of 60 nm, washed, and naturally air-dried for use;

[0072] (2) preparation concentration is that the TPPS aqueous solution of 6mmol / L and concentration are 0.6mol / L sodium chloride aqueous solution, and the aluminum oxide thin film that step (1) makes is placed in the two chambers that fill TPPS aqueous solution and sodium chloride aqueous solution respectively The connection between the two tanks is used to isolate the electrolyte contained in the above two tanks;

[0073] (3) Deposition of 200 min occurs simultaneously in the tanks on both sides of the aluminum oxide film arranged in step (2), and TPPS is deposited at the opening of the aluminum oxide film to self-assemble to form a TPPS nanofiber film with a thickness...

Embodiment 3

[0076] A specific preparation process of a porphyrin / alumina nanochannel membrane is as follows:

[0077] (1) A two-step anodic oxidation method is used to prepare an aluminum oxide film with one end sealed and a thickness of 70 μm and a surface pore diameter of 60 nm, washed, and naturally air-dried for use;

[0078] (2) preparation concentration is that the TPPS aqueous solution of 2mmol / L and concentration are 0.3mol / L sodium chloride aqueous solution, and the aluminum oxide thin film that step (1) makes is placed in the two chambers that fill TPPS aqueous solution and sodium chloride aqueous solution respectively The connection between the two tanks is used to isolate the electrolyte contained in the above two tanks;

[0079] (3) The deposition of 300min occurs simultaneously in the tanks on both sides of the aluminum oxide film arranged in step (2), and TPPS is deposited at the opening of the aluminum oxide film to self-assemble to form a TPPS nanofiber film with a thickn...

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Abstract

The invention discloses a porphyrin / aluminum oxide nano-channel membrane and an application thereof in an energy conversion device, and belongs to the field of energy conversion of nano materials. Theenergy conversion device takes a self-made porphyrin / aluminum oxide nano-channel membrane as a medium, and synergistically converts the clean and sustainable solar energy and salinity gradient energyinto electric energy which can be directly utilized by human beings. The porphyrin / aluminum oxide nano-channel has cation selectivity and light responsiveness at the same time, and the ionic currentflux passing through the salinity gradient system increases under the assistance of simulated sunlight, so that the power generation power is increased. According to the invention, a light-assisted enhanced salinity gradient power generation system is constructed by only relying on the porphyrin / aluminum oxide nano-channel membrane, and the light energy and the salinity gradient energy are simultaneously utilized to increase the overall electric energy output, thereby providing a brand new idea for the design and performance enhancement of other nanofluidic energy conversion devices.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial energy conversion, and relates to a design and application method of an energy conversion device in which light and salt difference are coordinated. More specifically, it relates to a porphyrin / alumina nanochannel film and an energy conversion device based on the porphyrin / alumina nanochannel film in which light and salt difference are coordinated. Background technique [0002] Due to the high consumption and serious pollution of conventional fossil fuels, the need for environmentally friendly energy sources has attracted extensive research interest. A clean and clean "blue energy", which can convert the gradient energy of salt water into electrical energy directly used by human beings. Inspired by the principle of electricity generation in electric eels and advanced nanofabrication techniques, devices utilizing solid nanochannel membranes for energy harvesting have been reported and demonst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N3/00
CPCH02N3/00
Inventor 范霞张丹
Owner BEIHANG UNIV
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