Lignin-based bimetallic functionalized carbon material as well as preparation method and application thereof
A lignin-based, bimetallic technology, applied in chemical instruments and methods, catalyst activation/preparation, chemical/physical processes, etc., can solve the problems of low metal content, long preparation time, and few active sites in the product, and achieve the goal of preparation The effect of short time, improved water solubility, and uniform metal distribution
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Embodiment 1
[0040] A preparation method of a lignin-based bimetallic functionalized carbon material, comprising the following steps:
[0041] S1. Weigh the mass of each substance according to the mass ratio of EHL-COOH, ferric chloride, and cobalt nitrate as 2:1:3. Dissolve EHL-COOH in 100mL pure water, then dissolve ferric chloride hexahydrate and cobalt nitrate hexahydrate in 50mL pure water, stir evenly with a magnetic force, and add dropwise into EHL-COOH aqueous solution, stir for 10min, measure the mixed solution pH. Adjust the pH of the mixed solution with ammonia water and hydrochloric acid to make it 8.5, let it stand for 12 hours, filter and wash the precipitate, centrifuge, dry the sample in an oven for 24 hours, take it out, weigh it, and obtain the metal-lignin-based supramolecular precursor, named EHL -COOH-Fe / Co.
[0042] S2. Take EHL-COOH-Fe / Co and urea with a mass ratio of 1:1 and grind and mix them evenly. Carry out high-temperature carbonization to 700°C under an Ar a...
Embodiment 2-10
[0044] The preparation method of Examples 2-10 is consistent with the preparation method of Example 1, except that the raw material content and parameters are different, and the specific raw materials and parameters are shown in Table 1.
[0045]Raw material and parameter setting of table 1 embodiment 2-10
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