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Zhang X, Fu J, Wang G, Hu H, Zhang DS, Zhang YZ, Zhang YK, Zhang ZW, Zhou WF, Li TT, Lv D, Geng L. Structure modulation, selective dye adsorption and catalytic CO2 transformation of four pillared-layer metal-organic frameworks. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Two isostructural Ni(II)/Co(II)-based metal-organic frameworks for selective dye adsorption and catalytic cycloaddition of CO2 with epoxides. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.02.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Microporous metal–organic framework with open Cu2+ functional sites and optimized pore size for C2H2 storage and CH4 purification. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.08.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Two Co(II) complexes based on 6-(3-pyridyl)isophthalic acid ligand: Structures, stability and catalytic applications. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Zhang X, Wang N, Geng L, Fu J, Hu H, Zhang D, Zhu B, Carozza J, Han H. Facile synthesis of ultrafine cobalt oxides embedded into N-doped carbon with superior activity in hydrogenation of 4-nitrophenol. J Colloid Interface Sci 2018; 512:844-852. [PMID: 29126073 DOI: 10.1016/j.jcis.2017.11.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 11/01/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
Design and synthesis of low-cost catalysts with high activity and stability for hydrogenation reactions is an important research area of applied catalysis. In this work, we present a kind of ultrafine cobalt oxides encapsulated by N-doped carbon (donated as CoOx/CN) as efficient catalysts for hydrogenation of 4-nitrophenol (4-NP) process. The CoOx/CN was fabricated through a pyrolysis strategy using an N-containing metal-organic framework (Co-MOF) as precursor followed by a fine thermal-treatment. With an optimized pyrolysis temperature of 500 °C, the CoOx species present as ultrafine particles highly dispersed in the obtained catalyst (CoOx/CN-500). CoOx/CN-500 exhibits excellent activity and stability in hydrogenation of 4-NP at ambient conditions. The activity is much higher than that of not only bulk cobalt oxides, but also carbon supported CoOx catalysts. It could be used for more than 8 times without obvious fading in activity. In addition, the concrete role of Co-MOF precursor and pyrolysis condition in the catalyst design was investigated in detail. The interaction between organic ligands and Co ions and the confinement of the crystalline structure of Co-MOF could restrain the aggregation of Co ions during pyrolysis and lead to high dispersion of ultrafine CoOx species. Meanwhile, the N-containing ligands could be transformed into doped N species (pyridinic and pyrrolic N), endowing the CoOx species with high electron density and promoting the formation of active sites for the hydrogenation reaction.
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Affiliation(s)
- Xiuling Zhang
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering, De Zhou University, De Zhou 253023, PR China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266000, PR China.
| | - Na Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266000, PR China
| | - Longlong Geng
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering, De Zhou University, De Zhou 253023, PR China.
| | - Junna Fu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266000, PR China
| | - Hui Hu
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering, De Zhou University, De Zhou 253023, PR China
| | - Dashuai Zhang
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering, De Zhou University, De Zhou 253023, PR China
| | - Baoyong Zhu
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, College of Chemistry and Chemical Engineering, De Zhou University, De Zhou 253023, PR China
| | - Jesse Carozza
- Department of Chemistry, University at Albany, State University of New York, Albany 12222, USA
| | - Haixiang Han
- Department of Chemistry, University at Albany, State University of New York, Albany 12222, USA
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Zhang DS, Zhang YZ, Gao J, Liu HL, Hu H, Geng LL, Zhang X, Li YW. Structure modulation from unstable to stable MOFs by regulating secondary N-donor ligands. Dalton Trans 2018; 47:14025-14032. [DOI: 10.1039/c8dt02858c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Four new Cd/Zn(ii) MOFs have been synthesized and structurally modulated from unstable to stable by regulating secondary N-donor ligands. Furthermore, YZ-10 shows excellent CO2 selective uptake over CH4 and N2 and uncommon H2 selective uptake over N2 at 77 K.
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Affiliation(s)
- Da-Shuai Zhang
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
| | - Yong-Zheng Zhang
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
| | - Jun Gao
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao
- P. R. China
| | - Hui-Ling Liu
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
- College of Chemical Engineering
| | - Hui Hu
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
| | - Long-Long Geng
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
| | - Xiuling Zhang
- College of Chemistry and Chemical Engineering
- Dezhou University
- Dezhou
- P. R. China
- College of Chemical Engineering
| | - Yun-Wu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- and School of Chemistry and Chemical Engineering Liaocheng University
- Liaocheng
- P. R. China
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Zhang X, Wang N, Liu PF, Zhang DS, Hu H. Three Mn(II) complexes based on 6-(3-pyridyl)isophthalic acid ligand: Structure modulation, stability and magnetic properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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