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Cover Feature: SnO 2 Based Catalysts with Low‐Temperature Performance for Oxidative Coupling of Methane: Insight into the Promotional Effects of Alkali‐Metal Oxides (Eur. J. Inorg. Chem. 17/2018)
Author(s) -
Peng Liang,
Xu Junwei,
Fang Xiuzhong,
Liu Wenming,
Xu Xianglan,
Liu Liang,
Li Zhongchen,
Peng Honggen,
Zheng Renyang,
Wang Xiang
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201800434
Subject(s) - chemistry , oxidative coupling of methane , catalysis , methane , alkali metal , cover (algebra) , molar ratio , lithium (medication) , oxide , inorganic chemistry , oxygen , alkaline earth metal , metal , coupling (piping) , electrophile , metallurgy , organic chemistry , mechanical engineering , materials science , engineering , medicine , endocrinology
The Cover Feature shows how the addition of a suitable amount of lithium oxide into SnO 2 can remarkably improve its performance in the oxidative coupling of methane, especially in the low‐temperature region below 750°C. Both the surface electrophilic oxygen species and the alkaline sites with intermediate strength are critical for the target reaction. For a catalyst with a Sn/Li molar ratio of 5:5, equal amounts of SnO 2 ) and Li 2 SnO 3 crystalline phases are formed in the bulk, which results in the largest amounts of both surface‐active sites and leads to the best catalytic performance. More information can be found in the Full Paper by X. Wang et al.