1
|
Li W, Shi J, He D, Chen H. Cascade Performance of Nitroarenes with Alcohols Boosted by a Hollow Flying Saucer-Shaped Ni-Al 2O 3 Catalyst via a MOF-Templated Strategy Induced by the Kirkendall Effect. Inorg Chem 2023; 62:21470-21478. [PMID: 38048366 DOI: 10.1021/acs.inorgchem.3c03629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Catalysts with an open hollow structure can enhance the mass transfer capability of the catalyst during the reaction process, thereby further improving the catalytic performance. In this work, uniform and monodisperse flying-squircher-shaped Al-MOFs were synthesized via a solvothermal method. Furthermore, a hollow structure Al2O3-supported metallic Ni catalyst (termed Ni-Al2O3-HFA) was synthesized via the Kirkendall effect for the hydrogenation-alkylation cascade reaction by employing as-synthesized Al-MOFs as a carrier for impregnation of Ni(NO3)2·6H2O through further calcination and reduction. Various characterizations (e.g., XRD, HADDF-STEM, H2-TPR) were conducted to reveal the superior performance of the developed Ni-Al2O3-HFA catalyst compared to Ni/Al2O3-IWI (Al2O3 obtained from calcination of Al-MOFs) in cascade reaction between nitroarenes and alcohols. We hope to use the MOF template method via the Kirkendall effect to prepare hollow structure nanocatalysts, which can provide a guideline for the preparation of other hollow materials.
Collapse
Affiliation(s)
- Weizuo Li
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Jing Shi
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Dafang He
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| | - Haiqun Chen
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
| |
Collapse
|
2
|
Zhang L, Lin S, Liu Y, Zeng X, You J, Xiao T, Feng Y, He Z, Chen S, Hua N, Ye X, Wei ZW, Chen CX. Optimized Pore Nanospace through the Construction of a Cagelike Metal-Organic Framework for CO 2/N 2 Separation. Inorg Chem 2023; 62:8058-8063. [PMID: 37172273 DOI: 10.1021/acs.inorgchem.3c01055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The development of metal-organic framework (MOF) adsorbents with a potential molecule sieving effect for CO2 capture and separation from flue gas is of critical importance for reducing the CO2 emissions to the atmosphere yet challenging. Herein, a cagelike MOF with a suitable cage window size falling between CO2 and N2 and the cavity has been constructed to evaluate its CO2/N2 separation performance. It is noteworthy that the introduction of coordinated dimethylamine (DMA) and N,N'-dimethylformamide (DMF) molecules not only significantly reduces the cage window size but also enhances the framework-CO2 interaction via C-H···O hydrogen bonds, as proven by molecular modeling, thus leading to an improved CO2 separation performance. Moreover, transient breakthrough experiments corroborate the efficient CO2/N2 separation, revealing that the introduction of DMA and DMF molecules plays a vital role in the separation of a CO2/N2 gas mixture.
Collapse
Affiliation(s)
- Lei Zhang
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Sihan Lin
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Yupeng Liu
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Xiayun Zeng
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Jianjun You
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Taotao Xiao
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Yongjie Feng
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Ziyu He
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Song Chen
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Nengbin Hua
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Xiaoyun Ye
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Zhang-Wen Wei
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Cheng-Xia Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| |
Collapse
|