氟化锶/氧化钕催化剂的甲烷氧化偶联性能及其吸附氧物种的原位FTIR光谱研究
Oxidative Coupling of Methane and in situ FTIR Spectra Study of Oxygen Adspecies over SrF_2/Nd_2O_3 Catalysts
Abstract
氟化锶/氧化钕催化剂的甲烷氧化偶联性能及其吸附氧物种的原位fTIr光谱研究龙瑞强,万惠霖,赖华龙,蔡启瑞(厦门大学化学系固体表面物理化学国家重点实验室,厦门,361005)关键词甲烷氧化偶联,氟化锶/氧化钕,吸附氧物种近年来,甲烷氧化偶联(OCM)的... For oxidative coupling of methane(OCM)at 750℃, the C2 selectivity and yield over SrF2/Nd2O3 catalyst system were Found to be obviously higher than those over Nd2O3.The in situ FTIR spectra were taken at OCM reaction temperature(700℃)and showed that adspecies was observed on 50%SrF2/Nd2O3catalyst, which might be the active and C2 selective oxygen species.