摘要
活性磁铁矿上CO_2直接还原成C的研究张春雷,吴通好,杨洪茂,姜玉子,彭少逸(吉林大学化学系,长春,130023)(中国科学院山西煤炭化学研究所,太原)关键词CO_2还原,阳离子过量,磁铁矿,炭,氧作为温室气体,CO2的大量排放及其在大气层中的不断积...
The cation-deficient magnetite(Fe3+δO4,δ<0)was synthesized by the oxidation of Fe(OH)2 suspensions at 358 K.The cation-excess magnetite(Fe3+δO4,δ>0)was obtained by flowing H2 gas through magnetite with cation-deficient composition at 563 K.The stability of Fe3+δO4(δ>0)was investigated at various temperatures and atmosphere.The reactivty of Fe3+δO4(δ>0)of reducing CO2 gas into carbon was studied at 358 K.The results confirm that CO2 was nearly 100% decomposed into carbon,the oxygen in CO2 is transferred in the form of O2- to the cation excess magnetite.The bigger the cation-excess extent of magnetite,the higher the decomposability of CO2,and the more O2 is produced indirectly.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第6期955-957,共3页
Chemical Journal of Chinese Universities
关键词
阳离子
磁铁矿
炭
氧
二氧化碳
还原
Reduction of CO_2 Cation-excess Magnetite Charcoal Oxygen