Preparation method of C1 doped glucose carbon based graphene

A technology of glucose and graphene, applied in graphene, nano-carbon, coating and other directions, can solve the problems of loss of graphene performance, safety of chemical reagents, many graphene defects, etc. Simple and safe, the process is easy to control the effect

Active Publication Date: 2018-11-30
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing graphene preparation technologies include reduced graphene oxide method, chemical vapor deposition method, epitaxial growth method, molecular self-assembly method, etc. Among them, the chemical reduction graphene oxide method can achieve large-scale production, but the prepared graphene has many defects. , and will inevitably produce certain pollution, and there are certain safety issues in the chemical reagents used for reduction. At present, it is mainly used to produce functionalized graphene materials with functional groups
[0003] There are also many studies on the preparation of doped graphene at this stage. CN108163847A provides a method for preparing large-diameter graphene. The method uses graphite as the main raw material, high-viscosity syrup as the main auxiliary

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  • Preparation method of C1 doped glucose carbon based graphene
  • Preparation method of C1 doped glucose carbon based graphene
  • Preparation method of C1 doped glucose carbon based graphene

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Embodiment 1

[0027] A preparation method of Cl-doped glucose carbon-based graphene, specifically related to the preparation of Cl-doped precursor solution, spin-coated film preparation and annealing process, the specific steps are as follows:

[0028] (1) According to the atomic ratio of C in glucose and Cl in hydrochloric acid of 9:1, mix glucose with hydrochloric acid with a concentration of 1mol / L, and place the mixed solution under stirring conditions at 100°C in the atmospheric environment Boil until the solution viscosity is 1×10 5 Centipoise, the stirring is to stir at a rotating speed of 1500r / min for 30min, as the solution viscosity increases after boiling, then stir at a rotating speed of 800r / min for 30min, and then stir at a rotating speed of 300r / min until the end, and deionized water, The water ethanol and the boiled caramel solution are mixed according to the volume ratio of 1:1:2 and then filtered. The filter is filtered with a filter tip with a pore size of 0.1 μm, and the...

Embodiment 2

[0033] A preparation method of Cl-doped glucose carbon-based graphene, specifically related to the preparation of Cl-doped precursor solution, spin-coated film preparation and annealing process, the specific steps are as follows:

[0034] (1) According to the atomic ratio of C in glucose and Cl in hydrochloric acid of 5:1, mix glucose with hydrochloric acid with a concentration of 1.5mol / L, and place the mixed solution under stirring conditions at 150°C in the atmospheric environment Boil down until the solution viscosity is 1×10 6 Centipoise, stirring is to stir with the rotating speed of 1200r / min for 35min, as the viscosity of the solution increases after boiling, then stir with the rotating speed of 600r / min for 35min, then stir with the rotating speed of 300r / min to the end, mix deionized water, The water ethanol and the boiled caramel solution are mixed according to the volume ratio of 1:1:2.5 and then filtered. The filter is filtered with a filter tip with a pore size o...

Embodiment 3

[0039] A preparation method of Cl-doped glucose carbon-based graphene, specifically related to the preparation of Cl-doped precursor solution, spin-coated film preparation and annealing process, the specific steps are as follows:

[0040] (1) According to the atomic ratio of C in glucose and Cl in hydrochloric acid of 3:1, mix glucose with hydrochloric acid with a concentration of 2mol / L, and place the mixed solution under stirring conditions at 200°C in the atmospheric environment Boil until the solution viscosity is 1×10 6Centipoise, stirring at a speed of 1000r / min for 40min, as the viscosity of the solution increases after boiling, then stirring at a speed of 500r / min for 40min, and then stirring at a speed of 300r / min until the end, the deionized water , absolute ethanol, and the boiled caramel solution are mixed according to a volume ratio of 1:1:3 and then filtered. The filter is filtered using a filter tip with a pore size of 0.3 μm, and the filtrate is a precursor sol...

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Abstract

The invention discloses a preparation method of C1 doped glucose carbon based graphene. The preparation method comprises following steps: glucose is mixed with hydrochloric acid, an obtained mixed solution is subjected to stirring boiling at the atmosphere environment until the solution viscosity ranges from 100000 to 1000000 centipoise; deionized water, absolute ethanol, and an obtained caramel solution are mixed at a certain ratio, and are filtered, an obtained filtrate is taken as a Cl doped precursor solution, the Cl doped precursor solution is subjected to spin coating of a quartz plate so as to obtain a spin coated sheet; the spin coated sheet is dried for 20 to 35min at a constant temperature, the dried spin coated sheet is subjected to 20 to 24h of annealing at 600 to 800 DEG C soas to obtain the C1 doped glucose carbon based graphene thin film. The preparation method is simple; the conditions are mild; the cost is low; the efficiency is high; the preparation method is friendly to the environment; and the prepared graphene material is controllable in doping amount, and large in test sample sheet diameter.

Description

technical field [0001] The invention belongs to the technical field of nano-graphene materials, and in particular relates to a preparation method of Cl-doped glucose carbon-based graphene. Background technique [0002] Graphene is a two-dimensional carbon material with excellent electrical, thermal, and mechanical properties. It has attracted extensive attention in many fields such as energy, electronic materials, biomedicine, and environmental protection. Necessary conditions for its application development. The existing graphene preparation technologies include reduced graphene oxide method, chemical vapor deposition method, epitaxial growth method, molecular self-assembly method, etc. Among them, the chemical reduction graphene oxide method can achieve large-scale production, but the prepared graphene has many defects. , and will inevitably produce certain pollution, and the chemical reagents used for reduction also have certain safety issues. Currently, they are mainly ...

Claims

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Application Information

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IPC IPC(8): C03C17/22C01B32/184
CPCC03C17/22C03C2217/28C01B32/184
Inventor 于杰战祥浩唐利斌刘子峰
Owner KUNMING UNIV OF SCI & TECH
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