关键词: 甲烷, 裂解, 制氢, 炭材料, 活性碳, 介孔

Abstract: Hydrogen production by catalytic decomposition of methane over carbon catalysts is reviewed，and emphasis is laid on catalytic performance of carbon catalysts with different pore characteristics and surface properties，including microporous carbon，mesoporous carbon and carbon-supported metal catalysts. Compared with the microporous carbon catalysts with high initial catalytic activity and quick deactivation，mesoporous carbon or hierarchical carbon catalysts with micropores and mesopores have high conversion of methane and long catalytic lifetime. Carbon-supported metal catalysts can improve catalytic activity and stability in catalytic decomposition of methane. In addition，the decomposition mechanism of methane on carbon catalysts is presented. A promising route to improve catalytic performance in methane decomposition on carbon catalysts is proposed by controlling the structure and composition of carbon. More effort should be paid to the catalytic decomposition mechanism on carbon catalysts in the future.

Key words: methane, decomposition, hydrogen production, carbon catalyst, activated carbon, mesoporous