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Sol–Gel Autocombustion Combined Carbothermal Synthesis of Iron‐Based Catalysts for the Fischer–Tropsch Reaction
Author(s) -
Xue Yingying,
Zhai Yongbiao,
Chen Zheng,
Zhang Juan,
Sun Jiaqiang,
Abbas Mohamed,
Chen Yilong,
Chen Jiangang
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701424
Subject(s) - carbothermic reaction , catalysis , fischer–tropsch process , iron oxide , carbide , chemistry , phase (matter) , carbon fibers , oxide , chemical engineering , inorganic chemistry , materials science , organic chemistry , composite number , selectivity , engineering , composite material
A new combined method of sol–gel autocombustion with carbothermal reduction has been developed to synthesize Fe‐based Fischer–Tropsch synthesis (FTS) catalysts. The effect of the glucose content on the structure and texture of the Fe phase is investigated. The glucose is employed as a reducing and carburizing agent to control the phase transformation of the Fe precursors. The reducibility of the synthesized iron oxide increases with the increase of the proportion of glucose. Meanwhile, iron oxide is converted completely into iron carbide in the presence of abundant glucose. The addition of glucose to the precursor is conducive to construct active sites before the FTS reaction. However, excess glucose results in carbon deposition and a poor FTS performance. Iron carbide also could be synthesized by this new method and will be applied directly to the FTS reaction in further research.