Nitrogen-doped carbon fiber loaded zirconium induced transition metal phosphide and preparation method thereof
A nitrogen-doped carbon fiber, transition metal technology, applied in the electrolysis process, electrodes, electrolysis components, etc., can solve problems such as unfavorable commercial application of catalysts
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[0029] The present invention is a preparation method of transition metal phosphide oxygen evolution electrocatalyst induced by nitrogen-doped biomass carbon fiber loaded with zirconium, which specifically comprises the following steps:
[0030] Step 1: Add 0.5mL of pyrrole monomer to 100mL of 1mg / mL bacterial cellulose suspension, add 1330mg of p-toluenesulfonic acid as a dopant, transfer the above mixed liquid to an ice-water bath at 1-4°C, 1946mg Ferric chloride was dissolved in 60mL of deionized water, and slowly added to the reaction system, and reacted for 4 to 8 hours. The membrane product was obtained by suction filtration, washed and dried.
[0031] Ferric chloride was used as an initiator to induce the in-situ polymerization of pyrrole monomers on the surface of bacterial cellulose to form Ppy (polypyrrole) / BC (bacterial cellulose) materials.
[0032] Step 2: Put the dried material in step 1 in a tube furnace, raise the temperature to 250-300°C at 1-3°C / min, and keep...
Embodiment 1
[0037]Step 1) Add 0.5mL of pyrrole monomer to 100mL of 1mg / mL bacterial cellulose suspension, add 1330mg of p-toluenesulfonic acid as a dopant, transfer the above mixed liquid to an ice-water bath at 1°C, and dissolve 1946mg of ferric chloride in 60mL deionized water, and slowly added to the reaction system, reacted for 6h. Suction filter to form a film, wash and dry.
[0038] Step 2) Put the dried material in step 1) in a tube furnace, raise the temperature to 300°C at 2°C / min, keep it for 1h, then raise the temperature to 800°C at 5°C / min, and keep it for 2h. The obtained carbon fibers were ground into powders, ultrasonically cleaned with 10% hydrochloric acid, washed and dried.
[0039] Step 3) Take 40 mg of the obtained nitrogen-doped carbon fiber and ultrasonically disperse it in 45 ml of ethanol, add 0.6 mmol of cobalt chloride, 0.3 mmol of ferric chloride and 0.1 mmol of zirconium chloride into the carbon fiber dispersion, stir for 30 minutes, and slowly add 2.5 mL of ...
Embodiment 2
[0046] Step 1) Add 0.5 mL of pyrrole monomer to 100 mL of 1 mg / mL bacterial cellulose suspension, add 1330 mg of p-toluenesulfonic acid as a dopant, transfer the above mixed liquid to 2 °C ice water bath, and dissolve 1946 mg of ferric chloride in 60mL deionized water, and slowly added to the reaction system, reacted for 4h. Suction filter to form a film, wash and dry.
[0047] Step 2) Place the dried material in step 1) in a tube furnace, raise the temperature to 250°C at 3°C / min, keep it for 1h, then raise the temperature to 600°C at 5°C / min, and keep it for 3h. The obtained carbon fibers were ground into powders, ultrasonically cleaned with 12% hydrochloric acid, washed and dried.
[0048] Step 3) Take 40 mg of the obtained nitrogen-doped carbon fiber and ultrasonically disperse it in 45 ml of ethanol, add 0.63 mmol of cobalt chloride, 0.32 mmol of ferric chloride and 0.05 mmol of zirconium chloride into the carbon fiber dispersion, stir for 30 minutes, and slowly add 2.5 ...
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