Transition metal dithio compound nanometer sheet layer compound and preparation method thereof
A transition metal, nanosheet technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc. Solvent pollution and other problems, to achieve the effect of broad industrial application prospects, easy mass production, and short production cycle
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Embodiment 1
[0026]Disperse 1g of molybdenum diselenide powder and 0.5g of polyvinylpyrrolidone (K30) in 250mL of water, sonicate for 8 hours, and collect the supernatant by centrifuging the sonicated aqueous solution to obtain a non-covalently modified transition metal dichalcogen compound aqueous solution of nanosheets. The prepared aqueous solution of nanosheets can be centrifuged at 3000rpm for 30 minutes at high speed, then freeze-dried for 24 hours to obtain nanosheets of polymer-modified transition metal dichalcogenides, and then heat-treated at 600°C to obtain transition metal dichalcogenides. / graphitized carbon composite, as an efficient catalyst for hydrogen evolution reaction; take 5mL of the prepared nanosheet aqueous solution, add 0.5g N-isopropylacrylamide monomer, 0.01g cross-linking agent N,N-methylene bispropylene Amide and 0.005g initiator ammonium persulfate were hydrothermally reacted at 180°C for 4 hours to obtain a transition metal dichalcogenide nanosheet composite ...
Embodiment 2
[0033] Disperse 0.1g of molybdenum disulfide powder and 0.5g of polyvinylpyrrolidone (K30) in 250mL of water, sonicate for 5h, and collect the supernatant by centrifuging the sonicated aqueous solution to obtain a non-covalently modified transition metal dichalcogen compound aqueous solution of nanosheets. The prepared aqueous solution of nanosheets can be centrifuged at 30000rpm for 10min, then further separated by freeze-drying for 12h to obtain nanosheets of polymer-modified transition metal dichalcogenides, and then subjected to high-temperature heat treatment at 800°C to obtain transition metal dichalcogenides / The composite of graphitized carbon is used as an efficient catalyst for hydrogen evolution reaction; take 5mL of the prepared nanosheet aqueous solution, add 0.5g N-vinyl caprolactam, 0.01g cross-linking agent N,N-methylenebisacrylamide and 0.005g initiator Ammonium persulfate was used as an agent, and hydrothermally reacted at 120°C for 3 hours to obtain a transi...
Embodiment 3
[0035] Disperse 0.3g of tungsten disulfide powder and 0.1g of polyvinylpyrrolidone (K30) in 250mL of water, sonicate for 8 hours, and collect the supernatant by centrifuging the sonicated aqueous solution to obtain a non-covalently modified transition metal dichalcogen compound aqueous solution of nanosheets. The prepared nanosheet aqueous solution can be centrifuged at 10,000rpm for 60 minutes at high speed, and then freeze-dried for 24 hours to obtain nanosheets of polymer-modified transition metal dichalcogenides, and then heat-treated at 800°C to obtain transition metal dichalcogenides. / graphitized carbon composite, as an efficient catalyst for hydrogen evolution reaction; take 5mL of the prepared nanosheet aqueous solution, add 1g of oligoethylene glycol methyl ether methacrylate, 0.01g of crosslinking agent N,N-methylene Bisacrylamide and 0.001g initiator ammonium persulfate were hydrothermally reacted at 150°C for 8 hours to obtain a transition metal dichalcogenide nan...
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