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Shao YR, Zhao F, Wei ZC, Huo YF, Dai JJ, Hu TL. Confining Co-Based Nanocatalysts by Ultrathin Nanotubes for Efficient Transfer Hydrogenation of Biomass Derivatives. ACS APPLIED MATERIALS & INTERFACES 2023; 15:26637-26649. [PMID: 37233726 DOI: 10.1021/acsami.3c02722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Catalytic transfer hydrogenation (CTH) based on non-noble-metal catalysts has emerged as an environmentally friendly way for the utilization of biomass resources. However, the development of efficient and stable non-noble-metal catalysts is crucially challenging due to their inherent inactivity. Herein, a metal-organic framework (MOF)-transformed CoAl nanotube catalyst (CoAl NT160-H) with unique confinement effect was developed via a "MOF transformation and reduction" strategy, which exhibited excellent catalytic activity for the CTH reaction of levulinic acid (LA) to γ-valerolactone (GVL) with isopropanol (2-PrOH) as the H donor. Comprehensive characterizations and experimental investigations uncovered that the confined effect of the ultrathin amorphous Al2O3 nanotubes could modulate the electronic structure and enhance the Lewis acidity of Co nanoparticles (NPs), thus contributing to the adsorption and activation of LA and 2-PrOH. The synergy between the electropositive Co NPs and Lewis acid-base sites of the CoAl NT160-H catalyst facilitated the transfer of α-H in 2-PrOH to the C atom of carbonyl in LA during the CTH process via a Meerwein-Ponndorf-Verley mechanism. Moreover, the confined Co NPs embedded on am-Al2O3 nanotubes endowed the CoAl NT160-H catalyst with superior stability and the catalytic activity was nearly unchanged for at least ten cycles, far surpassing that of the Co/am-Al2O3 catalyst prepared by the traditional impregnation method.
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Affiliation(s)
- Ya-Ru Shao
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Fei Zhao
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Zheng-Chang Wei
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Ying-Fei Huo
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Jing-Jing Dai
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Tong-Liang Hu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
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Hu W, Sun H, Pan L, Zhang C, Shen X, Su F, Song J. Poly(trimethylene carbonate)‐b‐poly(ethylene glycol) diblock copolymer micelles for hydrophobic drug delivery: The effect of hydrophilic/hydrophobic segment length on micellar properties and drug loading. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wenju Hu
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Haozhi Sun
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Lixia Pan
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Chaoqun Zhang
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
| | - Xin Shen
- Research & Development Department CP Pharmaceutical (Qingdao) Co., Ltd. Qingdao China
| | - Feng Su
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Institute of High Performance Polymers Qingdao University of Science and Technology Qingdao China
| | - Jie Song
- State Key Laboratory Base of Eco‐chemical Engineering, College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
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Zheng HQ, Zhang L, Lu M, Xiao X, Yang Y, Cui Y, Qian G. Precise Design and Deliberate Tuning of Turn-On Fluorescence in Tetraphenylpyrazine-Based Metal−Organic Frameworks. Research (Wash D C) 2022; 2022:9869510. [PMID: 36340506 PMCID: PMC9609278 DOI: 10.34133/2022/9869510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/03/2022] [Indexed: 11/12/2022] Open
Abstract
The manipulation on turn-on fluorescence in solid state materials attracts increasing interests owing to their widespread applications. Herein we report how the nonradiative pathways of tetraphenylpyrazine (TPP) units in metal−organic frameworks (MOFs) systems could be hindered through a topological design approach. Two MOFs single crystals of different topology were constructed via the solvothermal reaction of a TPP-based 4,4′,4″,4‴-(pyrazine-2,3,5,6-tetrayl) tetrabenzoic acid (H4TCPP) ligand and metal cations, and their mechanisms of formation have been explored. Compared with the innate low-frequency vibrational modes of flu net Tb-TCPP-1, such as phenyl ring torsions and pyrazine twists, Tb-TCPP-2 adopts a shp net, so the dihedral angle of pyrazine ring and phenyl arms is larger, and the center pyrazine ring in TPP unit is coplanar, which hinders the radiationless decay of TPP moieties in Tb-TCPP-2. Thereby Tb-TCPP-2 exhibits a larger blue-shifted fluorescence and a higher fluorescence quantum yield than Tb-TCPP-1, which is consistent with the reduced nonradiative pathways. Furthermore, Density functional theory (DFT) studies also confirmed aforementioned tunable turn-on fluorescence mechanism. Our work constructed TPP-type MOFs based on a deliberately topological design approach, and the precise design of turn-on fluorescence holds promise as a strategy for controlling nonradiative pathways.
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Affiliation(s)
- He-Qi Zheng
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lin Zhang
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Mengting Lu
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaoyan Xiao
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yu Yang
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yuanjing Cui
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guodong Qian
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
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Wang Y, Meng F, Su R, Sun C, Han Q, Zhang W, Zhang S. Synergistic Catalysis of Enzymes and Biomimetic MOFs: Immobilizing Cyt c on Two-dimensional MOFs to Enhance the Performance of Peroxidase. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2257-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ling JL, Wu CD. Transformation of metal-organic frameworks with retained networks. Chem Commun (Camb) 2022; 58:8602-8613. [PMID: 35833566 DOI: 10.1039/d2cc02865d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic frameworks (MOFs) are a class of crystalline porous coordination materials with systematically designable network structures and tunable properties, demonstrating great potential for applications in diverse fields. However, the generally poor stability of dynamic coordination bonds in MOFs hinders their practical applications in harsh environments. Although MOFs have been used as precursors and templates for the production of various derivatives with enhanced stability via thermal treatment, the extreme thermolytic conditions often destroy the network structures, consequently resulting in obvious decreases in porosity and surface areas with undesired characteristics. This feature article discusses the generally used pathways for the transformation of MOFs and the advanced fabrication methods for the production of various MOF-derived materials. We particularly emphasize the recent progress in the designed strategies for customization and derivation tailoring of MOFs, which could produce MOF-derived functional materials with remaining framework skeletons and inherited characteristics (surface area, porosity and properties) of the parent MOFs, exhibiting great promise for practical applications.
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Affiliation(s)
- Jia-Long Ling
- State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
| | - Chuan-De Wu
- State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
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