One-step cooperative development method of graphite microcrystals and pores in anthracite-based porous carbon
A technology of graphite microcrystals and anthracite, which is applied in the direction of chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of limited application fields of porous carbon and difficulty in achieving both, and achieve the elimination of process routes, low cost, and fixed The effect of high carbon content
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specific Embodiment approach 1
[0036] Specific embodiment one: what this embodiment records is a kind of one-step synergistic development method of anthracite-based porous carbon graphite microcrystal and pore, and described method is carried out according to the following steps:
[0037] Step 1: raw material refinement: crushing, grinding and sieving coal raw materials in sequence to obtain refined coal powder; the particle size of the refined coal powder is 60 mesh to 100 mesh;
[0038] Step 2: Mixing the chemical activator with the raw material: fully mix the pulverized coal obtained in step 1 with the chemical activator to obtain a mixture;
[0039] Step 3: High-temperature activation: Transfer the mixture obtained in Step 2 to a crucible, place it in an atmosphere furnace, raise the temperature to 600°C-1000°C and keep it warm for 0.5h-10h, then cool the atmosphere furnace down to room temperature naturally to obtain activation After mixed solid matter;
[0040] Step 4: Cleaning and drying of the acti...
specific Embodiment approach 2
[0041] Specific embodiment two: a kind of anthracite-based porous carbon graphite crystallite and pore synergistic development method of one step described in specific embodiment one, in step one, described coal raw material is the anthracite without any pretreatment, its industrial analysis ( mass fraction) is 0-10% moisture content, 0-20% ash content, 0-10% volatile matter content, and 70%-99% fixed carbon content; elemental analysis (mass fraction) is that the carbon element content is 90% to 99%, the content of hydrogen element is 0% to 10%, and the content of oxygen element is 0% to 10%. The raw material is a coal or a mixture of coals in any proportion within the above range.
specific Embodiment approach 3
[0042] Specific embodiment three: the one-step synergistic development method of anthracite-based porous carbon graphite crystallites and pores described in specific embodiment one, in step two, the chemical activator is a potassium-based activator, and the potassium-based activator It is a mixture of one or more of potassium hydroxide, potassium carbonate, potassium bicarbonate and potassium ferrate combined in any proportion. Potassium-based activators (such as potassium hydroxide, potassium ferrate, etc.) realize pore formation through their strong corrosiveness and oxidation at high temperature. At the same time, the intermediate product of the activator (such as potassium element) will catalyze the graphitization process of carbon materials, and during the activation process, potassium element enters the graphite microcrystalline layer through intercalation, further generating pores to increase the specific surface area.
[0043] Embodiment 4: The one-step synergistic dev...
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