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|Title:||Asymmetric tubular oxygen-permeable ceramic membrane reactor for partial oxidation of methane|
|Authors:||Yin, X. |
|Source:||Yin, X., Hong, L., Liu, Z.-L. (2007-07-05). Asymmetric tubular oxygen-permeable ceramic membrane reactor for partial oxidation of methane. Journal of Physical Chemistry C 111 (26) : 9194-9202. ScholarBank@NUS Repository. https://doi.org/10.1021/jp0682917|
|Abstract:||We report a successful paradigm of implementing the nickel catalyst for partial oxidation of methane (POM) in an oxygen-permeable ceramic membrane reactor (OPCMR). With using air feed, the OPCM (or the cathode of O2 reaction) was completely gastight but presented a desirable oxygen anion flux, which is required by POM in the anodic side. An almost 100% of CH4 conversion with high selectivity of CO and H2 was achieved in the anode, which was initially a composite of YSZ and NiO. It is also found that a mutual diffusion of Ni2+ and Zr4+ ions happens between the YSZ and NiO phases, which affected performance of POM. Besides experimental work, a new activation pathway was proposed to describe cleavage of the first C-H bond of methane. This activation pathway was simulated using the density function-theory and the computed activation energy for breaking up the first C-H bond falls in the experimental measurement range. © 2007 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
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