A kind of nitrogen-doped cobalt-based carbon nanocatalyst and its preparation method and application
A catalyst and nitrogen doping technology, which is applied in the field of new material preparation and electrochemistry, can solve the problems of complex electrocatalyst preparation process, long cycle, high cost, etc., and achieve the advantages of electron conduction, reduction of preparation cost and high current density Effect
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Embodiment 1
[0033] This embodiment provides a method for preparing a nitrogen-doped cobalt-based carbon nanomaterial, which is obtained through the following preparation steps:
[0034] (1) 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.018 g, 0.1 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.059 g, 0.2 mmol) was dissolved in absolute ethanol (4 ml) and H 2 In a mixed solvent of O (2 ml), keep it on a magnetic stirrer for about twenty minutes;
[0035] (2) Transfer the solution to a 15 ml reactor and package it at 130 o C and kept for 2 days, then taken out and slowly cooled to room temperature in the air, filtered to obtain orange block crystals;
[0036] (3) CVD carbonization reaction: at an argon flow rate of 100 sccm, an air pressure of 0.3 Kpa, and a CVD furnace temperature of 800 o Under the condition of C, put the triazole-cobalt complex prepared in step (2) in the center of the quartz tube, carry out carbonization reaction, the reaction time is 2 h, and then naturally cool to room temper...
Embodiment 2
[0039] This embodiment provides the preparation of a nitrogen-doped cobalt-based carbon nanomaterial, which is obtained through the following preparation steps:
[0040] (1) 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.038 g, 0.2 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.119 g, 0.4 mmol) was dissolved in absolute ethanol (4 ml) and H 2 In a mixed solvent of O (3 ml), keep it on a magnetic stirrer for about twenty minutes;
[0041] (2) Transfer the solution to a 15 ml reactor and package it at 130 o C and kept for 2 days, then taken out and slowly cooled to room temperature in the air, filtered to obtain orange block crystals;
[0042] (3) CVD carbonization reaction: at an argon flow rate of 100 sccm, an air pressure of 0.32 Kpa, and a CVD furnace temperature of 800 o Under the condition of C, put the triazole-cobalt complex prepared in step (2) in the center of the quartz tube, carry out carbonization reaction, the reaction time is 4 h, and then naturally cool to room temperatu...
Embodiment 3
[0045] This embodiment provides the preparation of a nitrogen-doped cobalt-based carbon nanomaterial, which is obtained through the following preparation steps:
[0046] (1) 4-(1H-1,2,4-triazol-1-yl)benzoic acid (tzbc) (0.047 g, 0.25 mmol) and Co(NO 3 ) 2 ·6H 2 O (0.148 g, 0.50 mmol) was dissolved in absolute ethanol (4 ml) and H 2 In a mixed solvent of O (2.5 ml), keep it on a magnetic stirrer for about twenty minutes;
[0047] (2) Transfer the solution to a 15 ml reactor and package it at 130 o C and kept for 2 days, then taken out and slowly cooled to room temperature in the air, filtered to obtain orange block crystals;
[0048] (3) CVD carbonization reaction: at an argon flow rate of 100 sccm, an air pressure of 0.4 Kpa, and a CVD furnace temperature of 800 o Under the condition of C, put the triazole-cobalt complex prepared in step (2) in the center of the quartz tube, carry out the carbonization reaction, the reaction time is 6 h, and then naturally cool to room te...
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