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Preparation method for cuprous oxide/reduced graphene oxide composite functional material

A graphene composite, cuprous oxide technology, applied in copper oxide/copper hydroxide, graphene, nanotechnology for materials and surface science, etc., can solve the problems of environmental pollution, complex synthesis process, etc. Contamination-free, high purity, mild effects

Inactive Publication Date: 2013-04-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problems that the existing method for preparing cuprous oxide / reduced graphene oxide pollutes the environment and the synthesis process is complex, and provides a method for preparing a cuprous oxide / reduced graphene oxide composite functional material

Method used

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  • Preparation method for cuprous oxide/reduced graphene oxide composite functional material
  • Preparation method for cuprous oxide/reduced graphene oxide composite functional material

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specific Embodiment approach 1

[0010] Embodiment 1: The preparation method of a cuprous oxide / reduced graphene oxide composite functional material of this embodiment is carried out through the following steps: 1. First, weigh graphite oxide, add water, and disperse by ultrasonic for 0.5-1.5 h Then the concentration is 0.008~0.012g·ml -1 Graphene oxide dispersion liquid A; Two, take by weighing copper salt and glucose, be dissolved in deionized water, obtain the mixed solution B of copper salt and glucose, wherein the mol ratio of copper salt and glucose is 1: (0.5~0.8), The final concentration of copper salt is 0.4~0.62mol·L -1 , the final concentration of glucose is 0.2~0.48mol·L -1 3. Weigh the alkali and dissolve it in deionized water to obtain a concentration of 0.8-1.8 mol·L -1 Alkaline solution C; 4. Under the condition that the dispersion liquid A of graphene oxide is still, add the mixed solution B dropwise, and let stand for 25~35min to obtain the mixed solution D, wherein the dispersion liquid A...

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the copper salt in step 2 is copper acetate monohydrate, copper sulfate pentahydrate, trihydrate and copper nitrate or copper chloride dihydrate. Others are the same as the first embodiment.

specific Embodiment approach 3

[0013] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the alkali in step 3 is sodium hydroxide or potassium hydroxide. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a composite functional material and a preparation method thereof, in particular to a preparation method of a cuprous oxide / reduced graphene oxide composite functional material. The invention aims to solve the problem that the present method for preparing the cuprous oxide / reduced grapheme oxide composite functional material causes pollution to the environment and has a complicated synthetic process. The preparation method comprises the following steps: 1, preparing graphene oxide dispersion liquid A; 2, preparing the mixed liquid B of copper salt and glucose B; 3, preparing an aqueous alkali C; 4, mixing A and B to obtain a mixed liquid D; 5, mixing D and C to obtain a mixed liquid E; and 6, placing the mixed liquid E on a heater for reaction, centrifuging, washing and drying. The preparation method provided by the invention has the advantages that the required time is short, the energy consumption is small, the raw materials are available, the process is simple, the conditions are mild, and no pollution is caused to the environment. The preparation method is applicable to the field of grapheme-based hybridized functional materials among functional materials.

Description

technical field [0001] The invention relates to a composite functional material and a preparation method. Background technique [0002] Energy shortage and environmental pollution are two serious problems facing the development of today's society, and the development of clean energy and the use of high-performance functional materials such as battery electrode materials are one of the powerful ways to solve these problems. In recent years, scientists have made unremitting efforts to research cheap, green, and high-performance functional materials. Among many materials, cuprous oxide (Cu 2 O) Due to the advantages of wide application, non-toxicity, easy availability, and wide source of preparation raw materials, it has been widely studied by researchers. [0003] Cuprous oxide (Cu 2 O) is one of the first mineral materials to be studied as an environmentally friendly semiconductor material. Cu 2 O is a direct bandgap p-type semiconductor with a band gap of 2.16 eV. Due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02C01B31/04B82Y30/00C01B32/184
Inventor 陈刚周彦松于耀光于麒麟赵丽宸何强
Owner HARBIN INST OF TECH
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