Novel two-dimensional covalent organic framework material and preparation and application thereof

A covalent organic framework, a new type of technology, applied in fuel cells, electrochemical generators, electrical components, etc., can solve the problem of low output power of proton exchange membranes, and achieve the effect of convenient purification, low raw materials, and simple synthesis process

Active Publication Date: 2020-06-12
吉林中科研伸科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a novel two-dimensional covalent organic framework material and its preparation and application to solve the technical problem of low output power of the covalent organic framework material proton exchange membrane

Method used

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  • Novel two-dimensional covalent organic framework material and preparation and application thereof
  • Novel two-dimensional covalent organic framework material and preparation and application thereof
  • Novel two-dimensional covalent organic framework material and preparation and application thereof

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Embodiment 1

[0035] 1. Synthesis of Intermediate 2:

[0036]

[0037] Add 100 grams of 1,3,5-tris(4-bromophenyl)benzene, 9.6 grams of triphenylphosphine, 24.5 grams of cuprous iodide, 24.9 grams of bistriphenylphosphine palladium dichloride, and two 1 L of isopropylamine, 200 ml of 1,4-dioxane, 314.7 ml of trimethylsilylacetylene, and the temperature of the reaction system was raised to 105° C. under the protection of argon for 72 hours.

[0038] After the reaction was completed, it was slowly cooled to room temperature, filtered with a Buchner funnel, and the obtained filtrate was spin-dried, and separated by column chromatography using petroleum ether as an eluent to obtain 65 g of a white solid product with a yield of 59.63%.

[0039] NMR characterization results:

[0040] hydrogen spectrum 1 H NMR (400MHz, DMSO) δ 7.97 (s, 9H), 7.58 (d, 6H), 0.26 (d, 27H).

[0041] Carbon spectrum: 13 C NMR (100 MHz, DMSO) δ 141.67, 138.97, 132.37, 128.92, 128.77, 127.16, 104.09, 95.07.

[0042...

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Abstract

The invention discloses a novel two-dimensional covalent organic framework material and preparation and application thereof, belongs to the field of new energy, and particularly relates to an organicframework material and preparation and application thereof. The two-dimensional covalent organic framework material is prepared by the following steps: carrying out Sonogashira coupling reaction and deprotection on a benzene compound 1, 3, 5-tri (4-bromophenyl) benzene containing bromine atoms, and finally, carrying out Schiff base reaction on the product and a tert-butyloxycarbonyl protecting group. The covalent organic framework material is low in raw material cost, simple in synthesis process and convenient to purify. When the covalent organic framework material is used as a proton exchangemembrane, the battery can keep excellent voltage working stability in a normal operation state; when the current density is 188mA/cm <2 >, the power density of the fuel cell is maximum and reaches 72mw/cm <2 >, and the fuel cell has higher power density at room temperature.

Description

technical field [0001] The invention belongs to the field of new energy, and in particular relates to a synthesis route of a novel covalent organic framework material and its application in fuel cells. Background technique [0002] Energy is the basis and guarantee for the continuous development of human society. With the progress of social economy, human needs for energy are also increasing. The rapid consumption of traditional fossil energy has also brought about two more difficult problems. The first is environmental problems, such as air and water pollution, extreme weather and natural disasters, which have led to the continuous deterioration of the human living environment; at the same time, traditional Fossil energy is the most important energy consumer, and its non-renewability will make human beings face serious energy depletion soon. In order to avoid these situations as soon as possible, countries around the world are actively looking for new energy alternatives, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00H01M8/1016
CPCC08G83/008H01M8/1016Y02E60/50
Inventor 赵礼义曹宇许名飞
Owner 吉林中科研伸科技有限公司
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