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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhao, Kun He, Fang Huang, Zhen Wei, Guoqiang Zheng, Anqing Li, Haibin Zhao, Zengli |
| Copyright Year | 2017 |
| Abstract | The effects of Mn substitution of LaMn$_{ x }$Fe$_{1−x }$O$_{3}$ (x=0, 0.3, 0.5, 0.7, 1.0) on the oxidation activity and resistance to carbon formation for chemical-looping steam methane reforming (CL-SMR) were investigated. The desired crystalline perovskite phases were formed by transferring from the orthorhombic structure of LaFeO$_{3}$ to rhombohedral lattice of LaMnO$_{3}$ as the degree of Mn-doping increased. Manganese ions have a mixed state of Mn$^{3+}$ and Mn$^{4+}$ in the LaFe$_{1−x }$Mn$_{ x }$O$_{3}$, meanwhile inducing the states of highly mixed character of Fe$^{2+}$, Fe$^{3+}$ and Fe$^{4+}$ in iron ions. Substitution of Mn for Fe with proper value not only increases the lattice oxygen, which is conducive to the partial oxidation of CH$_{4}$ to produce syngas, but also enhances the lattice oxygen mobility from the bulk to the surface of the oxygen carrier particles. Judging from the points of the redox reactivity, resistance to carbon formation and hydrogen generation capacity, the optimal range of the degree of Mn substitution is x=0.3–0.5. |
| Starting Page | 1651 |
| Ending Page | 1660 |
| Page Count | 10 |
| File Format | |
| ISSN | 02561115 |
| Journal | Korean Journal of Chemical Engineering |
| Volume Number | 34 |
| Issue Number | 6 |
| e-ISSN | 19757220 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2017-04-20 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Perovskite CL-SMR Manganese Carbon Formation Hydrogen Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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