A comparative study on electric energy storage performance of nitrogen-doped coal pitch porous carbon by one-step and multi-step activation
The structure and electrical storage efficiency of nitrogen-doped coal pitch-based porous carbon materials prepared by one-step method and multi-step method are systematically analyzed.Studies have shown that the one-step method is suitable for cost-sensitive applications due to its simple operation procedure and low energy consumption,and that the materials prepared by this method exhibit excellent electrochemical properties when using melamine as a nitrogen source.Although the multi-step process is more complex and energy consuming,it has the advantage of being able to precisely control the microstructure and chemical properties of the material,especially when ammonium sulfate is used as a nitrogen source,showing better capacitance characteristics.
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