Applied Catalysis A: General (2020)
Update date:2022-08-15
Topics:
Dutta, Kanchan
Chaudhari, Vishnu
Li, Chao-Jun
Kopyscinski, Jan
Vast availability of natural and shale gases makes methane a reliable source for synthesizing valuable chemical building blocks such as ethylene. A new stable supported GaN/SBA15 catalyst from an emerging class of nitride catalysts was reported for the direct non-oxidative methane coupling to ethylene. The effect of nitridation on the catalyst properties and activity was investigated. The optimum nitridation temperatures were 700 °C and 750 °C for the GaN/SBA15 and the unsupported GaN catalyst, respectively. Supported catalysts were more stable and had 5–10 times higher product (ethylene) formation rates per gram of gallium than the unsupported catalysts due to the higher surface area (>320 vs. <20 m2 g?1) and Ga-dispersion inside the pores. Compared to the oxide precursors, the nitrides exhibited a higher atom conversion efficiency for the CH4 carbon leading to higher ethylene selectivity (71 % for GaN/SBA15, <58 % for Ga2O3/SBA15) and lower coke selectivity (27 % for GaN/SBA15, 40 % for Ga2O3/SBA15).
View MoreWuhan Soleado Technology Co.,Ltd.
Contact:86-2783341481 18971291927
Address:RM2405 Unit 1 Builing 1, Taiyin Tower, Changqing Road,Wuhan China
Contact:+86-579-85206992
Address:No 451 chouzhou north road ,room 1106 int'l business center , yiwu ,china
Chengdu Cogon Bio-tech Co., Ltd.
Contact:86-28-85171192
Address:NO.52.YongFeng Rd. Chengdu,610041,P.R.China.
LIAOYANG TENGYUAN FOOD ADDITIVE FACTORY
Contact:+86-419-5807666
Address:Haodianzi village,Hanling Town,Liaoyang county
HAINAN JINYING IMPORT AND EXPORT CO. LTD
Contact:+86-898-32875423
Address:A SECTION 19TH FL, TIMES SQUARE, NO.2 GUO MAO AVENUE HAIKOU, HAINAN, P. R. OF CHINA
Doi:10.1039/c2gc35615e
(2012)Doi:10.1002/anie.200351405
(2003)Doi:10.1166/jnn.2018.15381
(2018)Doi:10.1039/c7md00551b
(2018)Doi:10.1002/zaac.200700139
(2007)Doi:10.1002/chem.201400153
(2014)