A kind of composite nanomaterial and preparation method thereof
A technology of composite nanomaterials and nanobelts, which is applied in the field of composite nanomaterials and its preparation, can solve problems such as insufficient performance, high cost, and difficult preparation
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[0044] The present invention also provides a preparation method of the above-mentioned composite nanomaterial, which includes the following steps: A) mixing cobalt salt, sodium selenite, amine solvent and water, and heating and reacting to obtain CoSe 2 nanoribbons; B) the CoSe 2 Nanobelts, nickel acetylacetonate and solvent are mixed, heated and reacted to obtain the composite nanomaterial CoSe 2 nanoribbon composites.
[0045] Wherein, the cobalt salt can be a cobalt salt well-known to those skilled in the art, and there is no special limitation. The cobalt salt described in the present invention is preferably cobalt acetate, cobalt acetate monohydrate, cobalt nitrate, cobalt carbonate and cobalt sulfate. One or more, more preferably cobalt acetate monohydrate, cobalt nitrate, cobalt carbonate or cobalt sulfate.
[0046] The amine solvent is an amine solvent well known to those skilled in the art, and there is no special limitation. The amine solvent described in the prese...
Embodiment 1
[0065] 1.1 Add 1mmol (0.249g) cobalt acetate monohydrate and 1mmol (0.173g) sodium selenite into 40ml mixed solution, the volume ratio of diethylenetriamine and deionized water in the mixed solution is 2:1, mix well and put The dark red mixed solution was transferred to a 50ml polytetrafluoroethylene-lined stainless steel reactor, heated to 180°C for 16 hours, then naturally cooled, centrifuged to obtain a black product, which was washed with deionized water and absolute ethanol, respectively. Remove impurities and residual ions, and vacuum dry at 60°C for 6 hours to obtain CoSe 2 nanobelt.
[0066] 1.2 Dissolve 50mg of nickel acetylacetonate in 30ml of N,N-dimethylformamide, then add 50mg of CoSe obtained in 1.1 2 Nanobelts were ultrasonically dispersed at room temperature for 10 minutes, then the uniformly mixed solution was transferred to a PTFE-lined 50ml reactor, heated to 200°C for 10 hours, and centrifuged to obtain a black product. Washed with water and ethanol to re...
Embodiment 2
[0078] 2.1 Add 1mmol (0.249g) cobalt acetate monohydrate and 1mmol (0.173g) sodium selenite into 40ml mixed solution, the volume ratio of diethylenetriamine and deionized water in the mixed solution is 2:1, mix well and put The dark red mixed solution was transferred to a 50ml polytetrafluoroethylene-lined stainless steel reactor, heated to 180°C for 16 hours, then naturally cooled, centrifuged to obtain a black product, which was washed with deionized water and absolute ethanol, respectively. Remove impurities and residual ions, and vacuum dry at 60°C for 6 hours to obtain CoSe 2 nanobelt.
[0079] 2.2 Dissolve 50mg of nickel acetylacetonate in 30ml of N,N-dimethylformamide, then add 50mg of CoSe obtained in 2.1 2 Nanobelts were ultrasonically dispersed at room temperature for 10 minutes, then the uniformly mixed solution was transferred to a PTFE-lined 50ml reactor, heated to 200°C for 10 hours, and centrifuged to obtain a black product. Washed with water and ethanol to re...
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