A kind of silver-copper heterometallic cluster compound and its preparation method and application
A technology of heterometallic and cluster compounds, which is applied in the field of application of silver-copper heterometallic cluster nanomaterials in the detection of hydrogen peroxide, can solve the problem of special preparation method of ferroferric oxide nanoparticles, which cannot be sensitively and accurately detected. Hydrogen oxide, can not be applied to conventional large-scale detection and other problems, to achieve the effect of convenient crystal regulation, avoiding reducing agent residue, and good sensitivity
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[0059] According to the preparation method of a kind of silver-copper heterometal cluster compound provided by the present invention, wherein, the preparation method comprises:
[0060] Step (1): Preparation of Alkyne Copper Precursor
[0061] In the present invention, the alkylene copper precursor can be prepared at normal temperature and pressure. Specifically, copper sulfate is added to concentrated ammonia water to react to form copper ammonium ions; Alkyne, stirred until the reaction is complete.
[0062] The normal temperature refers to an ambient temperature of 10-30° C.; the normal pressure refers to an atmospheric pressure.
[0063] In a preferred embodiment, copper sulfate is added to concentrated ammonia water, ultrasonically promotes the dissolution of copper sulfate and generates copper ammonium complex ions, especially tetraammine copper complex ions;
[0064] The concentrated ammonia water refers to an aqueous solution containing 25% to 28% of ammonia.
[006...
Embodiment 1
[0136] Weigh 2g of copper sulfate and add it to 4ml of concentrated ammonia water, mix and react in ultrasonic for 5min, add 3.5g of hydroxylamine hydrochloride to the mixed solution, mix well and then add 10ml of 3′,3′-dimethyl-1-butyne , stirring and reacting for 12 hours, after the reaction, the upper orange turbid liquid was centrifuged, and the orange solid was copper tert-butylacetylene.
[0137] The orange solid was washed with 20 ml of deionized water and 10 ml of ether, and dried to obtain an orange tert-butylene copper powder.
[0138] Weigh 0.085g tert-butylene copper precursor powder and add it to 2ml methanol, weigh 0.048g silver trifluoroacetate solid and add it to the above solution, ultrasonicate for 5min, then weigh 0.012g sodium carbonate and add it to the mixed solution to avoid After light stirring for 24h, the mixture was filtered to obtain a green transparent solution.
[0139] Crystals were grown by solvent evaporation.
[0140] A small amount of prepa...
Embodiment 2
[0144] Weigh 2g of copper sulfate and add it to 4ml of concentrated ammonia water, mix in ultrasonic for 5min, add 2g of hydrazine hydrate to the mixed solution, mix well and then add 9ml of n-butyne, stir and react for 14h, after the reaction, remove the upper orange turbid solution After centrifugation, the orange solid is copper tert-butylacetylene.
[0145] The orange solid was washed with 20 ml of deionized water and 10 ml of ether, and dried to obtain an orange tert-butylene copper powder.
[0146] Weigh 0.085g n-butyne copper precursor powder and add it to 2ml methanol, weigh 0.048g silver trifluoroacetate solid and add it to the above solution, ultrasonicate for 5min, then weigh 0.084g lithium carbonate and add it to the mixed solution, avoid light After stirring for 24h, the mixture was filtered to obtain a green transparent solution.
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