Preparation of cigarette butts/coal‐based porous carbon and its catalytic methane decomposition to hydrogen

Abstract

A new type of cigarette butts/coal-based composite porous carbon was prepared by potassium hydroxide chemical activation method and used for methane decomposition to hydrogen. The effects of mass mixing ratio of the used cigarette butts/coal and carbonization temperature on the surface properties and structure of carbon materials were studied. The results show that the optimal mass mixing ratio of cigarette butts/coal is 1:3, and the increase in temperature can promote the specific surface area of carbon materials from 1850 to 2785 m 2 /g, the distribution of pore size is also changed from a large number of micropores to mesopores, and the structure became more disordered. DT/YT-3-1023 has the highest initial activity, DT/YT-3-1123 has the highest stability, and a certain amount of carbon fibers are deposited on the surface of carbon materials after the reaction.

Enhanced supercapacitor performance of porous carbon through tuning maceral composition proportion of coal

“…Using anthracite, 22 weakly caking coal, and some low-rank long-flame coal and lignite 23,24 as raw materials, PC materials with different properties have been obtained. For example, Yan et al prepared a coal-based PC with a S BET of 2372 m 2 g −1 and a microporous rate of 93% using KOH activation.…”

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

“…Actually, CB contains nearly 95% cellulose acetate fiber, which as a good carbonaceous precursor can be converted into porous carbon with mesoporous and microporous by a certain activation process [10,11]. Recently, some literatures have reported that the carbon material prepared from CB had the characteristics of rich surface oxygen-containing groups and developed pore structure, showing excellent adsorption performance [12]. For example, Troy et al [13].…”