|
1
|
Yu Q, Zhuang R, Gao W, Yi H, Xie X, Zhang Y, Tang X. Mesoporous Co3O4 with large specific surface area derived from MCM-48 for catalytic oxidation of toluene. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
|
2
|
Jiang M, Wu Q, Yan J, Pan J, Dai Q, Zhan W. Si-doped Al 2O 3 nanosheet supported Pd for catalytic combustion of propane: effects of Si doping on morphology, thermal stability, and water resistance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:56480-56490. [PMID: 34057630 DOI: 10.1007/s11356-021-14646-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Catalytic combustion of propane as typical light alkanes was important for the purification of industrial VOCs and automobile hydrocarbon emissions. Si-doped Al2O3 nanosheet was synthesized by a hydrothermal method, and effects of Si content on the morphology and thermal stability of Al2O3 were investigated. The doping of SiO2 could tune the thickness of Al2O3 nanosheets and significantly improve its thermal stability, the θ phase was still maintained, and the specific surface area was as high as 56.3 m2 g-1 after calcination at 1200 °C. And then the Si-doped Al2O3 nanosheets were used as support of Pd catalysts (Pd/Si-Al2O3 nanosheets) for catalytic combustion of propane, especially Pd/3.6Si-Al2O3 nanosheets, which presented high activity, stability, and resistance to sintering and H2O due to the promotion of Si on the thermal stability of Al2O3 and the stabilization (dispersion, isolation, and strong interaction) of PdOx species.
Collapse
Affiliation(s)
- Mingxiang Jiang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Qingqing Wu
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jiaorong Yan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jun Pan
- Nanjing Engineering Institute of Aircraft Systems, AVIC, Nanjing, 211106, People's Republic of China
| | - Qiguang Dai
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| |
Collapse
|
|
3
|
Ocsachoque MA, Leguizamón-Aparicio MS, Casella ML, Lick ID. Promoting Effect of Palladium on ZnAl 2O 4-Supported Catalysts Based on Cobalt or Copper Oxide on the Activity for the Total Propene Oxidation. MATERIALS 2021; 14:ma14174814. [PMID: 34500904 PMCID: PMC8432500 DOI: 10.3390/ma14174814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022]
Abstract
Palladium-modified Co-ZnAland Cu-ZnAl materials were used and found active for the catalytic oxidation of propene and propane. According to the results obtained by XRD, TPR and XPS, the zinc aluminate-supported phases are oxide phases, Co3O4, CuO and PdOx for Co-ZnAl, Cu-ZnAl and Pd-ZnAl catalysts, respectively. These reducible oxide species present good catalytic activity for the oxidation reactions. The addition of palladium to Co-ZnAl or Cu-ZnAl samples promoted the reducibility of the system and, consequently, produced a synergic effect which enhanced the activity for the propene oxidation. The PdCo-ZnAl sample was the most active and exhibited highly dispersed PdOx particles and surface structural defects. In addition, it exhibited good catalytic stability. The H2 pre-treated PdCu-ZnAl, PdCo-ZnAl and Pd-ZnAl samples showed higher activity than the original oxide catalysts, evidencing the important role of the oxidation state of the species, mainly of the palladium species, on the catalytic activity for the propene combustion. The synergic effect between metal transition oxides and PdOx could not be observed for the propane oxidation.
Collapse
|
|
4
|
Liu Z, Cheng L, Zhangxue S, Huang M, Zeng J, Yuan S, Bo Q, Zhang B, Jiang Y. Enhancement of propane combustion activity over CoO x catalysts by introducing C 2–C 5 diols. NEW J CHEM 2021. [DOI: 10.1039/d1nj00052g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
C2–C5 diols effectively promote the degradation of propane by weakening the Co–O bond strength of CoOx.
Collapse
Affiliation(s)
- Zhao Liu
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Lijun Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Shiyun Zhangxue
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Min Huang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Jia Zeng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Shanliang Yuan
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Qifei Bo
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Biao Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Yi Jiang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology Chengdu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| |
Collapse
|