Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (12): 3731.doi: 10.7503/cjcu20210469
• Physical Chemistry • Previous Articles Next Articles
WU Shuaini, ZHU Pengfei, SHI Huaiqi, LI Na, HU Zhaoxia(
), CHEN Shouwen
Received:2021-07-05
Online:2021-12-10
Published:2021-09-16
Contact:
HU Zhaoxia
E-mail:huzhaoxia@njust.edu.cn
Supported by:CLC Number:
TrendMD:
WU Shuaini, ZHU Pengfei, SHI Huaiqi, LI Na, HU Zhaoxia, CHEN Shouwen. Preparation of CoCrx/SAPO-34 Catalyst and Its Catalytic Combustion Performance for 1,2-Dichloroethane[J]. Chem. J. Chinese Universities, 2021, 42(12): 3731.
Fig.2 SEM(A―F) and EDS(G―K) element mapping images of the CoCrx/SAPO?34 catalysts(A) CoCr0.05/SAPO-34; (B) CoCr0.06/SAPO-34; (C) CoCr0.08/SAPO-34; (D) CoCr0.12/SAPO-34; (E) CoCr0.25/SAPO-34; (F) tested CoCr0.06/SAPO-34; (G) O; (H) Al; (I) Cr; (J) Co; (K) Si.
| Catalyst | T50/℃ | T90/℃ | n(Co3+)/n(Co2+) | n(Cr6+)/n(Cr3+) | n(Oads)/n(Olatt) |
|---|---|---|---|---|---|
| CoCr0.05/SAPO?34 | 255 | 294 | 1.76 | 0.83 | 1.65 |
| CoCr0.06/SAPO?34 | 250 | 290 | 2.27 | 1.34 | 1.93 |
| CoCr0.08/SAPO?34 | 253 | 300 | — | — | — |
| CoCr0.12/SAPO?34 | 255 | 300 | — | — | — |
| CoCr0.25/SAPO?34 | 269 | 316 | 1.80 | 0.77 | 1.54 |
| 20Co3O4/SAPO?34 | 284 | 380 | — | — | — |
| 40Co3O4/SAPO?34 | 263 | 316 | — | — | — |
Table 1 Characteristic temperature of CoCrx/SAPO-34 for 1,2-DCE catalytic combustion
| Catalyst | T50/℃ | T90/℃ | n(Co3+)/n(Co2+) | n(Cr6+)/n(Cr3+) | n(Oads)/n(Olatt) |
|---|---|---|---|---|---|
| CoCr0.05/SAPO?34 | 255 | 294 | 1.76 | 0.83 | 1.65 |
| CoCr0.06/SAPO?34 | 250 | 290 | 2.27 | 1.34 | 1.93 |
| CoCr0.08/SAPO?34 | 253 | 300 | — | — | — |
| CoCr0.12/SAPO?34 | 255 | 300 | — | — | — |
| CoCr0.25/SAPO?34 | 269 | 316 | 1.80 | 0.77 | 1.54 |
| 20Co3O4/SAPO?34 | 284 | 380 | — | — | — |
| 40Co3O4/SAPO?34 | 263 | 316 | — | — | — |
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