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- W2575281639 endingPage "122" @default.
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- W2575281639 abstract "Sorption-enhanced steam methane reforming (SESMR) is a promising technology for H2 production, which can be further enhanced at the particle scale by using core (sorbent)-shell (catalyst) structured bifunctional materials. However, it is challenging but desirable to develop such materials with high activity and stability. In this work, three core-shell structured CaO-Ca9Al6O18@Ca5Al6O14/Ni bifunctional materials with varying CaO content and core/shell mass ratio were prepared by a two-step sol-gel method, and two others (Ni/CaO and [email protected]5Al6O14/Ni) served as references. The structural properties and catalytic performance of the materials were investigated. The results showed that all core-shell materials during cyclic SESMR operation had much better performance than Ni/CaO with regards to activity, stability and CaO utilization, and CaO-Ca9Al6O18@Ca5Al6O14/Ni was generally superior to [email protected]5Al6O14/Ni except when the former had a much higher CaO content than the latter. The excellent performance of CaO-Ca9Al6O18@Ca5Al6O14/Ni was mainly due to the stabilization effect of Ca9Al6O18 and the support effect of Ca5Al6O14. The best material was a CaO-Ca9Al6O18@Ca5Al6O14/Ni with a CaO content of 13 wt% and a core/shell mass ratio of 0.2, showing high activity and stability over 60 SESMR cycles while maintaining nearly complete utilization of CaO." @default.
- W2575281639 created "2017-01-26" @default.
- W2575281639 creator A5000669378 @default.
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- W2575281639 date "2017-05-01" @default.
- W2575281639 modified "2023-10-11" @default.
- W2575281639 title "Core-shell structured CaO-Ca9Al6O18@Ca5Al6O14/Ni bifunctional material for sorption-enhanced steam methane reforming" @default.
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- W2575281639 doi "https://doi.org/10.1016/j.ces.2017.01.036" @default.
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