Application of copper-carbon catalyst in lithium-carbon dioxide battery
A carbon dioxide and catalyst technology, applied in battery electrodes, fuel cell half-cells and secondary battery-type half-cells, circuits, etc., can solve the problem that lithium-ion batteries are difficult to meet high energy density and high-power electrical appliances, clogged gas and Ion transmission channels, affecting battery performance and other issues, to achieve the effect of good conductivity, low overpotential, and large specific surface area
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Embodiment 1
[0027] Application of copper-carbon catalysts in lithium-carbon dioxide batteries, the copper-carbon catalysts of this embodiment are copper nanoparticles CuNPs / NCNF supported on nitrogen-containing carbon fibers;
[0028] The preparation method of nitrogen-containing carbon fiber loaded copper nanoparticles CuNPs / NCNF catalyst in this embodiment includes the following steps:
[0029] (1) Using DMF as a solvent, adding pyromellitic anhydride and dimethyl diphenyl ether in a molar ratio of 1:1 under stirring, and stirring for 12 hours to obtain a precursor solution with a mass fraction of 20%;
[0030] (2) Transfer the prepared precursor solution to the syringe, start spinning after adjusting the voltage to 17kV, the flow rate of the syringe pump at 0.002mm / s, and the receiving distance at 9cm. The spun fibers are collected by a roller. The membrane was vacuum dried for 12 hours and then used for later use;
[0031] (3) Pre-oxidize the spinning membrane in air atmosphere, rais...
Embodiment 2
[0035] Application of copper-carbon catalysts in lithium-carbon dioxide batteries, the copper-carbon catalysts of this embodiment are copper nanoparticles CuNPs / NCNF supported on nitrogen-containing carbon fibers;
[0036] The preparation method of the present embodiment nitrogen-containing carbon fiber supported copper nanoparticles CuNPs / NCNF catalyst comprises the following steps:
[0037](1) Using DMF as a solvent, adding pyromellitic anhydride and dimethyl diphenyl ether in a molar ratio of 1:1 under stirring, and stirring for 14 hours to obtain a precursor solution with a mass fraction of 20%;
[0038] (2) Transfer the prepared precursor solution to the syringe, adjust the voltage to 15-18kV, the flow rate of the syringe pump to 0.003mm / s, and start spinning after the receiving distance is 11cm. The spun fibers are collected by a roller. The fiber membrane is vacuum-dried for 14 hours for later use;
[0039] (3) Pre-oxidize the spinning membrane in the air atmosphere, r...
Embodiment 3
[0043] Application of copper-carbon catalysts in lithium-carbon dioxide batteries, the copper-carbon catalysts of this embodiment are copper-palladium nanoparticles CuPd NPs / NCNF supported on nitrogen-containing carbon fibers;
[0044] The preparation method of nitrogen-containing carbon fiber supported copper nanoparticles CuPd NPs / NCNF catalyst of this embodiment comprises the following steps:
[0045] (1) The preparation of NCNF is the same as embodiment one or two;
[0046] (2) Take 1mL of K 2 [PdCl 6 ] solution with 15.00 mg CuCl 2 ·H 2 O was added to 80 mL of deionized water, and after dissolving, 40 mg of trisodium citrate dihydrate was added;
[0047] (3) Add 90 mg of NCNF under magnetic stirring, stir well and then sonicate for 25 minutes;
[0048] (4) Then slowly and uniformly drop 11.5mL of NaHB under magnetic stirring 4 The solution was stirred for 23 hours, washed twice with deionized water and absolute ethanol, and vacuum-dried at 55° C. for 23 hours to obt...
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Abstract
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