1
|
Oliden-Sánchez A, Sola-Llano R, Pérez-Pariente J, Gómez-Hortigüela L, Martínez-Martínez V. Confinement of a Styryl Dye into Nanoporous Aluminophosphates: Channels vs. Cavities. Int J Mol Sci 2024; 25:3577. [PMID: 38612388 PMCID: PMC11011965 DOI: 10.3390/ijms25073577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/07/2024] [Accepted: 03/13/2024] [Indexed: 04/14/2024] Open
Abstract
Styryl dyes are generally poor fluorescent molecules inherited from their flexible molecular structures. However, their emissive properties can be boosted by restricting their molecular motions. A tight confinement into inorganic molecular sieves is a good strategy to yield highly fluorescent hybrid systems. In this work, we compare the confinement effect of two Mg-aluminophosphate zeotypes with distinct pore systems (the AEL framework, a one-dimensional channeled structure with elliptical pores of 6.5 Å × 4.0 Å, and the CHA framework, composed of large cavities of 6.7 Å × 10.0 Å connected by eight-ring narrower windows) for the encapsulation of 4-DASPI styryl dye (trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide). The resultant hybrid systems display significantly improved photophysical features compared to 4-DASPI in solution as a result of tight confinement in both host inorganic frameworks. Molecular simulations reveal a tighter confinement of 4-DASPI in the elliptical channels of AEL, explaining its excellent photophysical properties. On the other hand, a singular arrangement of 4-DASPI dye is found when confined within the cavity-based CHA framework, where the 4-DASPI molecule spans along two adjacent cavities, with each aromatic ring sitting on these adjacent cavities and the polymethine chain residing within the narrower eight-ring window. However, despite the singularity of this host-guest arrangement, it provides less tight confinement for 4-DASPI than AEL, resulting in a slightly lower quantum yield.
Collapse
Affiliation(s)
- Ainhoa Oliden-Sánchez
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| | - Rebeca Sola-Llano
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| | - Joaquín Pérez-Pariente
- Instituto de Catálisis y Petroleoquímica (CSIC), c/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain;
| | - Luis Gómez-Hortigüela
- Instituto de Catálisis y Petroleoquímica (CSIC), c/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain;
| | - Virginia Martínez-Martínez
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| |
Collapse
|
2
|
Ostrowski A, Jankowska A, Tabero A, Janiszewska E, Kowalak S. Synthesis and Characterization of Proton-Conducting Composites Prepared by Introducing Imidazole or 1,2,4-Triazole into AlPO-5 and SAPO-5 Molecular Sieves. Molecules 2023; 28:7312. [PMID: 37959732 PMCID: PMC10647750 DOI: 10.3390/molecules28217312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
The present work concerns proton-conducting composites obtained by replacing the water molecules present in aluminophosphate and silicoaluminophosphate AFI-type molecular sieves (AlPO-5 and SAPO-5) with azole molecules (imidazole or 1,2,4-triazole). Both the introduction of azoles and the generation of Brønsted acid centers by isomorphous substitution in aluminophosphate materials were aimed at improving the proton conductivity of the materials and its stability. In the presented study, AlPO-5 and several SAPO-5 materials differing in silicon content were synthesized. The obtained porous matrices were studied using PXRD, low-temperature nitrogen sorption, TPD-NH3, FTIR, and SEM. The proton conductivity of composites was measured using impedance spectroscopy. The results show that the increase in silicon content of the porous matrices is accompanied by an increase in their acidity. However, this does not translate into an increase in the conductivity of the azole composites. Triazole composites show lower conductivity and significantly higher activation energies than imidazole composites; however, most triazole composites show much higher stability. The different conductivity values for imidazole and triazole composites may be due to differences in chemical properties of the azoles.
Collapse
Affiliation(s)
- Adam Ostrowski
- Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
| | - Aldona Jankowska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.J.); (A.T.); (E.J.)
| | - Agata Tabero
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.J.); (A.T.); (E.J.)
| | - Ewa Janiszewska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.J.); (A.T.); (E.J.)
| | - Stanisław Kowalak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (A.J.); (A.T.); (E.J.)
| |
Collapse
|
3
|
Elkhafif OW, Hassan HK, Ceblin MU, Farkas A, Jacob T. Influence of Residual Water Traces on the Electrochemical Performance of Hydrophobic Ionic Liquids for Magnesium-Containing Electrolytes. ChemSusChem 2023; 16:e202300421. [PMID: 37338003 DOI: 10.1002/cssc.202300421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023]
Abstract
A trace amount of water is typically unavoidable as an impurity in ionic liquids, which is a huge challenge for their application in Mg-ion batteries. Here, we employed molecular sieves of different pore diameters (3, 4, and 5 Å), to effectively remove the trace amounts of water from 1-methyl-1-propylpiperidinium bis(trifluoromethylsulfonyl)imide (MPPip-TFSI) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMP-TFSI). Notably, after sieving (water content <1 mg ⋅ L-1 ), new anodic peaks arise that are attributed to the formation of different anion-cation structures induced by minimizing the influence of hydrogen bonds. Furthermore, electrochemical impedance spectroscopy (EIS) reveals that the electrolyte resistance decreases by ∼10 % for MPPip-TFSI and by ∼28 % for BMP-TFSI after sieving. The electrochemical Mg deposition/dissolution is investigated in MPPip-TFSI/tetraglyme (1 : 1)+100 mM Mg(TFSI)2 +10 mM Mg(BH4 )2 using Ag/AgCl and Mg reference electrodes. The presence of a trace amount of water leads to a considerable shift of 0.9 V vs. Mg2+/ Mg in the overpotential of Mg deposition. In contrast, drying of MPPip-TFSI enhances the reversibility of Mg deposition/dissolution and suppresses the passivation of the Mg electrode.
Collapse
Affiliation(s)
- Omar W Elkhafif
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Hagar K Hassan
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
- Helmholtz Institute Ulm (HIU) - Electrochemical Energy Storage, Helmholtzstr. 11, D-89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021, Karlsruhe, Germany
| | - Maximilian U Ceblin
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Attila Farkas
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
- Helmholtz Institute Ulm (HIU) - Electrochemical Energy Storage, Helmholtzstr. 11, D-89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021, Karlsruhe, Germany
| |
Collapse
|
4
|
Zarębska K, Nomura M, Wolczko M, Szczurowski J, Pawlak B, Baran P. Sorption of Polar Sorbates NH 3, H 2O, SO 2 and CO 2 on Selected Inorganic Materials. Materials (Basel) 2023; 16:4853. [PMID: 37445169 DOI: 10.3390/ma16134853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/22/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
In this paper, the sorption of NH3, H2O, SO2 and CO2 was tested for several selected inorganic materials. The tests were performed on samples belonging to two topologies of materials, faujasite (FAU) and framework-type MFI, the structures of which differ in pore size and connectivity. All sorbates are important in terms of reducing their emissions to the environment. They have different chemical nature: basic, alkaline, and acidic. They are all polar in structure and composition and two of them (ammonia and water vapor) can form hydrogen bonds. These differences result in different interactions with the surface of the adsorbents. This paper presents experimental data and proposes a mathematical description of the sorption process. The best fit of the experimental data was obtained for the Toth and GAB models. The studies showed that among the selected samples, faujasite has the best sorption capacity for ammonia and water vapor, while the best sorbent for sulfur dioxide is the MFI framework type. These materials behave like molecular sieves and can be used for quite selective adsorption of relevant gases. In addition, modification of the faujasite with organic silane resulted in a drastic reduction in the surface area of the sorbent, resulting in significantly lower sorption capacities for gases.
Collapse
Affiliation(s)
- Katarzyna Zarębska
- Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Mikihiro Nomura
- Department of Applied Chemistry, Shibaura Institute of Technology, 3-7-5 Toyosu, Koto-ku, Tokyo 135-8548, Japan
| | - Marta Wolczko
- Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jakub Szczurowski
- Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Bartłomiej Pawlak
- Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Paweł Baran
- Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| |
Collapse
|
5
|
Alahakoon S, Willans MJ, Huang Y. In Situ Multinuclear Magic-Angle Spinning NMR: Monitoring Crystallization of Molecular Sieve AlPO 4-11 in Real Time. JACS Au 2023; 3:1670-1683. [PMID: 37388699 PMCID: PMC10302754 DOI: 10.1021/jacsau.3c00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/16/2023] [Accepted: 04/21/2023] [Indexed: 07/01/2023]
Abstract
Molecular sieves are crystalline three-dimensional frameworks with well-defined channels and cavities. They have been widely used in industry for many applications such as gas separation/purification, ion exchange, and catalysis. Obviously, understanding the formation mechanisms is fundamentally important. High-resolution solid-state NMR spectroscopy is a powerful method for the study of molecular sieves. However, due to technical challenges, the vast majority of the high-resolution solid-state NMR studies on molecular sieve crystallization are ex situ. In the present work, using a new commercially available NMR rotor that can withhold high pressure and high temperature, we examined the formation of molecular sieve AlPO4-11 under dry gel conversion conditions by in situ multinuclear (1H, 27Al, 31P, and 13C) magic-angle spinning (MAS) solid-state NMR. In situ high-resolution NMR spectra obtained as a function of heating time provide much insights underlying the crystallization mechanism of AlPO4-11. Specifically, in situ 27Al and 31P MAS NMR along with 1H → 31P cross-polarization (CP) MAS NMR were used to monitor the evolution of the local environments of framework Al and P, in situ 1H → 13C CP MAS NMR to follow the behavior of the organic structure directing agent, and in situ 1H MAS NMR to unveil the effect of water content on crystallization kinetics. The in situ MAS NMR results lead to a better understanding of the formation of AlPO4-11.
Collapse
|
6
|
Yadav VK, Choudhary N, Inwati GK, Rai A, Singh B, Solanki B, Paital B, Sahoo DK. Recent trends in the nanozeolites-based oxygen concentrators and their application in respiratory disorders. Front Med (Lausanne) 2023; 10:1147373. [PMID: 37181347 PMCID: PMC10174459 DOI: 10.3389/fmed.2023.1147373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
Medical-grade oxygen is the basic need for all medical complications, especially in respiratory-based discomforts. There was a drastic increase in the demand for medical-grade oxygen during the current pandemic. The non-availability of medical-grade oxygen led to several complications, including death. The oxygen concentrator was only the last hope for the patient during COVID-19 pandemic around the globe. The demands also are everlasting during other microbial respiratory infections. The yield of oxygen using conventional molecular zeolites in the traditional oxygen concentrator process is less than the yield noticed when its nano-form is used. Nanotechnology has enlightened hope for the efficient production of oxygen by such oxygen concentrators. Here in the current review work, the authors have highlighted the basic structural features of oxygen concentrators along with the current working principle. Besides, it has been tried to bridge the gap between conventional oxygen concentrators and advanced ones by using nanotechnology. Nanoparticles being usually within 100 nm in size have a high surface area to volume ratio, which makes them suitable adsorbents for oxygen. Here authors have suggested the use of nano zeolite in place of molecular zeolites in the oxygen concentrator for efficient delivery of oxygen by the oxygen concentrators.
Collapse
Affiliation(s)
- Virendra Kumar Yadav
- Department of Biosciences, School of Liberal Arts and Sciences, Mody University of Science and Technology, Lakshmangarh, Rajasthan, India
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan, Gujarat, India
- *Correspondence: Virendra Kumar Yadav,
| | - Nisha Choudhary
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan, Gujarat, India
- Department of Environment Sciences, School of Sciences, P P Savani University, Surat, Gujarat, India
| | | | - Ashita Rai
- School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Bijendra Singh
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Bharat Solanki
- Department of Biochemistry, M B Patel Science College, Anand, Gujarat, India
| | - Biswaranjan Paital
- Redox Regulation Laboratory, Department of Zoology, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, India
- Biswaranjan Paital,
| | - Dipak Kumar Sahoo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
- Dipak Kumar Sahoo, ;
| |
Collapse
|
7
|
Li C, Yuan Y, Li P, Yang K, Ren Q, Nie A, Liu S, Lazar S, Meingast A, Wang S. Atomic Mechanisms of Cation Adsorption/Exchange in Octahedral Molecular Sieves. ACS Nano 2022; 16:21618-21625. [PMID: 36521057 DOI: 10.1021/acsnano.2c10682] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Octahedral molecular sieves (OMSs) based on MnO2 have been widely studied in the fields of deionization, geochemistry, and energy storage due to their microporous tunnel framework capable of adsorbing and exchanging various ions, particularly cations. The understanding of cation adsorption/exchange within OMS tunnels demands atomic-scale exploration, which has been scarcely reported. Here, we disclose how various cations (K+/Ag+/Na+) interplay within the OMS tunnel space on an atomic scale. Not only are the lattice sites for each adsorbed cation species pinpointed but the scenario of dual-cation adsorption within single tunnels is also demonstrated, together with the discovery of characteristic concentration-dependent cation ordering. Moreover, compared with the theoretical parent tunnel phase, the heterogeneous tunnels, though sparsely distributed, exhibit a distinct yet orderly cationic accommodation, highlighting the non-negligible role of tunnel heterogeneity in regulating OMS physiochemistry. Our findings clarify the long-existing ambiguities in nano- and atomic-scale science of the ion adsorption process in OMS materials and are expected to inspire their structural/compositional engineering toward functionality enhancement in various fields.
Collapse
Affiliation(s)
- Chenghang Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Yifei Yuan
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Penghui Li
- Center for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People's Republic of China
| | - Keqin Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Qingqing Ren
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| | - Anmin Nie
- Center for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People's Republic of China
| | - Suya Liu
- Thermo Fisher Scientific, Jinke Road No. 2517, Shanghai 201206, People's Republic of China
| | - Sorin Lazar
- Thermo Fisher Scientific, Achtseweg Noord 5, 5156 Eindhoven, The Netherlands
| | - Arno Meingast
- Thermo Fisher Scientific, Achtseweg Noord 5, 5156 Eindhoven, The Netherlands
| | - Shun Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, People's Republic of China
| |
Collapse
|
8
|
Jin J, Liu H, Xue H, Yang J, Qu C, Ma H, Chen J. [Determination of polychlorinated naphthalenes in soil using accelerated solvent extraction- molecular sieves solid-phase extraction coupled with gas chromatography-tandem mass spectrometry]. Se Pu 2022; 40:937-43. [PMID: 36222257 DOI: 10.3724/SP.J.1123.2021.12030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Emerging pollutants (EPs) are chemical substances that are commonly not regulated and can be detected at low or very low concentrations. However, EPs have triggered special concern because their long-term adverse effects on the environment and human health remain unknown. Most EPs show biological toxicity, environmental persistence, and bioaccumulation. Even at low concentrations in the environment, EPs may pose significant environmental and health risks. Therefore, their treatment has been explicitly included in the 14th Five Year Plan for National Economic and Social Development of the People's Republic of China and the Outline of the Long-term Goals for 2035. Soil is a source of pollutants, and its quality is directly related to economic development, ecological security, and people's livelihood. At present, China's soil environmental monitoring system is not perfect, and the ability to monitor these new organic pollutants is lagging. Therefore, to strengthen the supervision of construction and agricultural land soil environments, it is essential to strengthen the soil environment monitoring ability for these EPs and establish a reliable, steady, and economic analysis method, including their separation and analysis methods in soil. Polychlorinated naphthalenes (PCNs) have received considerable attention as emerging halogenated compounds. They were listed in Annexes A and C of the Stockholm Convention on persistent organic pollutants (POPs) in 2015 because of their persistence, multimedia fate, and toxicity. PCNs have now been detected in the surrounding soils. Owing to their trace levels in complex soil, high requirements have been put forward for the pretreatment and instrument analysis of PCNs. This study aims to develop a new method for the selective purification of PCNs in soil, which can not only effectively remove lipids and other interferences in soil but also effectively reduce time, labor, and material costs in the pre-treatment process. Based on the physicochemical properties of the 13X molecular sieve, it was explored to purify soil-extracts as solid-phase extraction (SPE) sorbents. With n-hexane as the loading and rinsing solvent, 10 mL of a dichloromethane/n-hexane mixture (2∶15, v/v) was used to elute the PCNs. Moreover, selective separation of target substances from lipid macromolecules and other interferences could be achieved simultaneously. For the selective separation of PCNs, the average recovery of the internal standard could reach 56.1% to 88.0%. 13X molecular sieves are superior to gel permeation chromatography (GPC) and Florisil SPE, and they exhibit good cleanup efficiency similar to a multilayer silica gel/alumina column (53.0%-117.0%). Although the obtained recoveries are not as high as those obtained with a multilayer silica gel/alumina column, 13X molecular sieves have advantages in terms of simple operation, environmental friendliness, and low cost. Based on these fundamental experiments, accelerated solvent extraction was used to extract targets in soil, molecular sieves were used as SPE sorbents for purification, and GC-MS/MS was employed for PCN analysis. This method was developed as a systematic analytical method for PCNs determination. The method detection limits (MDLs) for PCN homologs were in the range of 0.009-0.6 ng/g. The precision and accuracy of the method were evaluated using spiked matrices. At three spiked levels (4, 10, and 18 ng), the recoveries of PCNs (CN-3, 13, 42, 46, 52, 53, 73, and 75) were 70%-128%, 71%-115%, and 61%-114%, respectively, and the corresponding relative standard derivations were 4.2%-23%, 6.5%-31% and 4.7%-22%. Thus, this method meets the requirements of trace analysis and shows acceptable parallelism, sensitivity, accuracy, and precision, thus being feasible for the analysis of emerging pollutant. The method is expected to play an important role in sample pretreatment in the future, especially for the nationwide investigation of soil pollution.
Collapse
|
9
|
Zhu J, Bie Z, Cai X, Jiao Z, Wang Z, Tao J, Song W, Fan HJ. A Molecular-Sieve Electrolyte Membrane enables Separator-Free Zinc Batteries with Ultralong Cycle Life. Adv Mater 2022; 34:e2207209. [PMID: 36065756 DOI: 10.1002/adma.202207209] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The poor stability of the zinc-metal anode is a main bottleneck for practical application of aqueous zinc-ion batteries. Herein, a series of molecular sieves with various channel sizes are investigated as an electrolyte host to regulate the ionic environment of Zn2+ on the surface of the zinc anode and to realize separator-free batteries. Based on the ZSM-5 molecular sieve, a solid-liquid mixed electrolyte membrane is constructed to uniformize the transport of zinc ions and foster dendrite-free Zn deposition. Side reactions can also be suppressed through tailoring the solvation sheath and restraining the activity of water molecules in electrolyte. A V2 O5 ||ZSM-5||Zn full cell shows significantly enhanced performance compared to cells using glass fiber separator. Specifically, it exhibits a high specific capacity of 300 mAh g-1 , and a capacity retention of 98.67% after 1000 cycles and 82.67% after 3000 cycles at 1 A g-1 . It is attested that zeolites (ZSM-5, H-β, and Bate) with channel sizes of 5-7 Å result in best cycle stability. Given the low cost and recyclability of the ZSM and its potent function, this work may further lower the cost and boost the industrial application of AZIBs.
Collapse
Affiliation(s)
- Junbo Zhu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Zhe Bie
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Xinxin Cai
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Zhaoyang Jiao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Ziting Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Jingchen Tao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Weixing Song
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China
| | - Hong Jin Fan
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| |
Collapse
|
10
|
Wang M, Mao X, Liu J, Deng B, Deng S, Jin S, Li W, Gong J, Deng R, Zhu J. A Versatile 3D-Confined Self-Assembly Strategy for Anisotropic and Ordered Mesoporous Carbon Microparticles. Adv Sci (Weinh) 2022; 9:e2202394. [PMID: 35780503 PMCID: PMC9443438 DOI: 10.1002/advs.202202394] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/27/2022] [Indexed: 05/19/2023]
Abstract
Mesoporous carbon microparticles (MCMPs) with anisotropic shapes and ordered structures are attractive materials that remain challenging to access. In this study, a facile yet versatile route is developed to prepare anisotropic MCMPs by combining neutral interface-guided 3D confined self-assembly (3D-CSA) of block copolymer (BCP) with a self-templated direct carbonization strategy. This route enables pre-engineering BCP into microparticles with oblate shape and hexagonal packing cylindrical mesostructures, followed by selective crosslinking and decorating of their continuous phase with functional species (such as platinum nanoparticles, Pt NPs) via in situ growth. To realize uniform in situ growth, a "guest exchange" strategy is proposed to make room for functional species and a pre-crosslinking strategy is developed to preserve the structural stability of preformed BCP microparticles during infiltration. Finally, Pt NP-loaded MCMPs are derived from the continuous phase of BCP microparticles through selective self-templated direct carbonization without using any external carbon source. This study introduces an effective concept to obtain functional species-loaded and N-doped MCMPs with oblate shape and almost hexagonal structure (p6mm), which would find important applications in fuel cells, separation, and heterogeneous catalysis.
Collapse
Affiliation(s)
- Mian Wang
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Xi Mao
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Jingye Liu
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Bite Deng
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Shuai Deng
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Shaohong Jin
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Wang Li
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Jiang Gong
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Renhua Deng
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| | - Jintao Zhu
- State Key Laboratory of Materials Processing and Die & Mould TechnologyKey Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China
| |
Collapse
|
11
|
Zhao J, Zhang Y, Guo H, Zhang H, Ren J, Song R. Rational Regulation of Crystalline/Amorphous Microprisms-Nanochannels Based on Molecular Sieve (VSB-5) for Electrochemical Overall Water Splitting. Small 2022; 18:e2200832. [PMID: 35561047 DOI: 10.1002/smll.202200832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Rational regulation of the composition and structure of electrocatalysts is crucial to the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Herein, a new electrocatalyst of nickel phosphate microprism (VSB/NiPO) is developed via a simple solvothermal reaction. The microprism is mainly composed of Versailles-Santa Barbara-5 (VSB-5, molecular sieve) with unique nanochannels, which contribute to accelerating mass transfer and exposing more active sites, thus displaying excellent HER activity. Subsequently, the crystallinity and electronic structure of the framework are modulated by incorporating Fe with the combination of calcination and impregnation. The nanochannels are converted to the amorphous arrangement, and the Ni centers are regulated to the higher valence. The resultant Fe-VSB/NiPO-500 exhibits a low OER overpotential of 227 mV at 50 mA cm-2 . Interestingly, an integrated electrolyzer assembled by VSB/NiPO(-) and Fe-VSB/NiPO-500(+) performs well for overall water splitting, which requires only 1.487 V to achieve 10 mA cm-2 , and remains stable at 100 mA cm-2 over 100 h. This finding opens a new avenue for developing VSB-5 in the field of electrocatalysis.
Collapse
Affiliation(s)
- Jiayang Zhao
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), 19 Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Yao Zhang
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), 19 Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Haoran Guo
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), 19 Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Haotian Zhang
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), 19 Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Junkai Ren
- Laboratory of Materials Science and Nanotechnology (LMNT), Department of Chemistry and Pharmacy, University of Sassari, CR-INSTM, Via Vienna 2, Sassari, 07100, Italy
| | - Rui Song
- School of Chemical Sciences, University of Chinese Academy of Sciences (UCAS), 19 Yuquan Road, Shijingshan District, Beijing, 100049, China
| |
Collapse
|
12
|
Liu H, Jin J, Xue H, Guo C, Ren F, He X, Chen J, Hu C. A cleanup method of serum extracts with molecular sieves as SPE sorbents for the analysis of polybrominated diphenyl ethers. J Sep Sci 2022; 45:2334-2343. [PMID: 35472733 DOI: 10.1002/jssc.202100889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 11/11/2022]
Abstract
Based on the size- and shape-selective sorption, 13X molecular sieves were developed as solid-phase extraction adsorbents to cleanup serum extract for the determination of polybrominated diphenyl ethers. The important parameters affecting the cleanup efficiency were investigated, including the amount of sorbents, the type and volume of solvents. Under the optimized conditions, the capacity for removing impurities was evaluated via gel permeation chromatography and GC-MS. The results demonstrated that up to 99% of lipids in corn oil (13 mg) can be removed after cleanup, and endogenous compounds in serum can also be effectively eliminated. The cleanup efficiency is not only superior to Hydrophile-Lipophile Balance column, but also close to acid silica gel and multi-function impurity sorbents. Generally, the developed cleanup method exhibited higher recovery for polybrominated diphenyl ethers with more than four bromines, especially for nona- and deca-brominated diphenyl ethers (99.1-117.8%). The cleanup method can be coupled with GC-MS/MS for polybrominated diphenyl ethers analysis in human serum. The method detection limits were 0.01-0.27 ng/mL and average recovery was 50.9-113.3%, except 2,3',4',6-tetrabrominated, 2,3',4,4',6-pentabrominated and 2,3,3',4,4',5',6-heptabrominated diphenyl ethers. 2,2',4,5'-tetrabrominated diphenyl ethers had the highest detection frequency (95%) in human serum, whereas decabrominated diphenyl ethers had the maximum mean concentration (0.50 ng/mL). This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Hongyuan Liu
- Shenyang Pharmaceutical University.,CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
| | - Jing Jin
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
| | | | - Cuicui Guo
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences.,University of Chinese Academy of Sciences
| | - Feng Ren
- The Second hospital of Dalian Medical University
| | - Xiaolin He
- The Second hospital of Dalian Medical University
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
| | - Chun Hu
- Shenyang Pharmaceutical University
| |
Collapse
|
13
|
Zhou P, Hu T, Xu Y, Li X, Shi W, Lin Y, Xu T, Wei B. Biomimetic Superhydrophobic Films with an Extremely Low Roll-Off Angle Modified by F 16CuPc via Two-Step Fabrication. Nanomaterials (Basel) 2022; 12:953. [PMID: 35335766 DOI: 10.3390/nano12060953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023]
Abstract
Superhydrophobicity is the phenomenon of which the water contact angle (WCA) of droplets on a solid surface is greater than 150°. In the present paper, we prepare a superhydrophobic film with a structure similar to the surface of a lotus leaf, which is composed of polydimethylsiloxane (PDMS), zinc oxide (ZnO), a molecular sieve (MS) and 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluorophthalocyanine copper(II) (F16CuPc). The F16CuPc was used as the modifier to reduce the surface energy of the biomimetic micro-nanostructure. With the introduction of F16CuPc, the superhydrophobic properties of the surface were enhanced so that the WCA and water roll-off angle could reach 167.1° and 0.5°, respectively. Scanning electron microscopy, X-ray energy spectrometry, and X-ray photoelectron spectroscopy analyses verified that the enhanced superhydrophobic properties of the film were mainly attributed to the modification of F16CuPc. Finally, thermal, mechanical, and chemical stability studies, as well as the influences of UV and underwater immersion on the superhydrophobic film were investigated. This developed two-step fabrication method may be a potential direction for superhydrophobic surface fabrication due to its simple process, excellent superhydrophobic property, and favorable stability.
Collapse
|
14
|
Kim DH, Chong S, Park C, Ahn J, Jang JS, Kim J, Kim ID. Oxide/ZIF-8 Hybrid Nanofiber Yarns: Heightened Surface Activity for Exceptional Chemiresistive Sensing. Adv Mater 2022; 34:e2105869. [PMID: 34984744 DOI: 10.1002/adma.202105869] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Though highly promising as powerful gas sensors, oxide semiconductor chemiresistors have low surface reactivity, which limits their selectivity, sensitivity, and reaction kinetics, particularly at room temperature (RT) operation. It is proposed that a hybrid design involving the nanostructuring of oxides and passivation with selective gas filtration layers can potentially overcome the issues with surface activity. Herein, unique bi-stacked heterogeneous layers are introduced; that is, nanostructured oxides covered by conformal nanoporous gas filters, on ultrahigh-density nanofiber (NF) yarns via sputter deposition with indium tin oxide (ITO) and subsequent self-assembly of zeolitic imidazolate framework (ZIF-8) nanocrystals. The NF yarn composed of ZIF-8-coated ITO films can offer heightened surface activity at RT because of high porosity, large surface area, and effective screening of interfering gases. As a case study, the hybrid sensor demonstrated remarkable sensing performances characterized by high NO selectivity, fast response/recovery kinetics (>60-fold improvement), and large responses (12.8-fold improvement @ 1 ppm) in comparison with pristine yarn@ITO, especially under highly humid conditions. Molecular modeling reveals an increased penetration ratio of NO over O2 to the ITO surface, indicating that NO oxidation is reliably prevented and that the secondary adsorption sites provided by the ZIF-8 facilitate the adsorption/desorption of NO, both to and from ITO.
Collapse
Affiliation(s)
- Dong-Ha Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sanggyu Chong
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Chungseong Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ji-Soo Jang
- Center for Electronic Materials, Korea Institute of Science and Technology, Seoul, 136-791, Republic of Korea
| | - Jihan Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| |
Collapse
|
15
|
Li T, Li T, Zhang Y, Schmidt RR, Peng P. Preparation of Tea Aroma Precursor Glycosides: An Efficient and Sustainable Approach via Chemical Glycosidation. J Agric Food Chem 2022; 70:2320-2327. [PMID: 35138835 DOI: 10.1021/acs.jafc.1c07043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tea aroma precursor glycosides are plant-derived natural products with great economic value. However, the preparation of these glycosides remains largely overlooked in the past decades. Herein, we report a mild, efficient, and sustainable chemocatalytic procedure for the production of tea aroma precursor glycosides. During the study of the glycosidation, the catalysts were found to be decisive in the product formation favoring different reaction pathways; in addition, the influence of molecular sieves was elucidated. With regard to these findings, the serious problem of the competing orthoester formation side reaction was successfully overcome with low catalyst loading (1 mol %) and the use of 5 Å molecular sieves, leading to the preparation of a variety of tea aroma precursor β-d-glucopyranosides and β-primeverosides on a gram scale in high yields in an economical way. Taken together, the current approach features catalytic glycosidation with non-toxic and low-cost catalysts, demonstrates highly favorable greenness and sustainability, and promises industrial production of tea aroma precursor glycosides.
Collapse
Affiliation(s)
- Tianlu Li
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Jinan, Shandong 266237, People's Republic of China
| | - Tong Li
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Jinan, Shandong 266237, People's Republic of China
| | - Youqin Zhang
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Jinan, Shandong 266237, People's Republic of China
| | - Richard R Schmidt
- Department of Chemistry, University of Konstanz, D-78457 Konstanz, Germany
| | - Peng Peng
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-Based Medicine, Shandong University, Jinan, Shandong 266237, People's Republic of China
| |
Collapse
|
16
|
Lee HS, Kim NS, Kwon DI, Lee SK, Numan M, Jung T, Cho K, Mazur M, Cho HS, Jo C. Post-Synthesis Functionalization Enables Fine-Tuning the Molecular-Sieving Properties of Zeolites for Light Olefin/Paraffin Separations. Adv Mater 2021; 33:e2105398. [PMID: 34545976 DOI: 10.1002/adma.202105398] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Zeolite molecular sieves are widely used in gas separation and shape-selective catalysis, but these applications often require discriminating differences as little as 0.1 Å. Molecular sieving with such size selectivity demands zeolites with highly tunable pore diameters and adsorption properties, which are technically challenging to prepare. Nevertheless, it is shown that a wide range of organic functional groups can be covalently functionalized onto the interior pore walls of the zeolites, MOR, LTL, FAU, and MFI, to systematically "tune" their effective pore diameters with respect to the size of organic groups. For organic functionalization, small and aggressive organic electrophiles are used (e.g., organo-halide and -diazonium) as grafting agents, which are accessible to the intracrystalline void space, forming a C-Ozeolite bond in a reaction with a bridging oxygen as proved by multiple analysis data. It is demonstrated that the post-functionalization can be used to tailor the molecular sieving action of a parent zeolite to give size-selective adsorbents for light olefin/paraffin separations. 4-Methoxybenzene-functionalized MOR separates ethylene from ethane with an ideal-adsorbed-solution-theory selectivity of ≈5873, whereas toluene-grafted MOR completely separates propylene/propane mixtures. Therefore, tailoring the molecular-sieving properties of zeolites by organic functionalization broadens their applications to challenging separations.
Collapse
Affiliation(s)
- Hae Sol Lee
- Nanomaterials and Green Catalysis Lab, Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Nam Sun Kim
- Nanomaterials and Green Catalysis Lab, Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Dong-Il Kwon
- Nanomaterials and Green Catalysis Lab, Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Su-Kyung Lee
- Research Group of Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong, Daejeon, 305-600, Republic of Korea
| | - Muhammad Numan
- Nanomaterials and Green Catalysis Lab, Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Taesung Jung
- Climate Change Research Division, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Kanghee Cho
- Climate Change Research Division, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
| | - Michal Mazur
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague, 128 43, Czech Republic
| | - Hae Sung Cho
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Changbum Jo
- Nanomaterials and Green Catalysis Lab, Department of Chemistry and Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| |
Collapse
|
17
|
Han R, Tao Y, Zhou L. Growth Study of Hierarchical Pore SSZ-13 Molecular Sieves with Improved CO 2 Adsorption Performance. Nanomaterials (Basel) 2021; 11:3171. [PMID: 34947520 DOI: 10.3390/nano11123171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022]
Abstract
SSZ-13, with a unique pore structure and excellent thermal stability, showed a potential application in the adsorption and catalysis industry. In this work, Al(NO3)3 was used as an Al source to study the performance and morphology of the zeolite. The zeolite was prepared with an unconventional process by adding an Al source before the structure-directing agent and base. When inorganic oxygen-containing anions were introduced into the unconventional synthesis system, the crystals of the zeolite conform to the unconventional growth mode. The zeolites with large crystals were assembled from small unit nanocrystals. Extending the reaction time, aging time and adding fluoride ions introduced a multistage pore structure on the surface of the molecular sieve, which improved the CO2 adsorption performance. When aging for 24 h, reaction for 96 h, and the amount of fluorine added was 0.05 (F/Si), the sample had the best hierarchical pore structure. The SSZ-13 molecular sieve with an added amount of 0.1 (F/Si) has the highest CO2 adsorption performance. The adsorption amount was 4.55 mmol/g at 1 bar, which is 20.4% higher than that of zeolite SSZ-13 prepared by the conventional process.
Collapse
|
18
|
Polyukhov DM, Poryvaev AS, Sukhikh AS, Gromilov SA, Fedin MV. Fine-Tuning Window Apertures in ZIF-8/67 Frameworks by Metal Ions and Temperature for High-Efficiency Molecular Sieving of Xylenes. ACS Appl Mater Interfaces 2021; 13:40830-40836. [PMID: 34423631 DOI: 10.1021/acsami.1c12166] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Separation of structurally similar components from their mixtures is one of the most promising applications of metal-organic frameworks (MOFs). A high efficiency of such molecular sieving requires fine tuning of the MOF structure. In this work, we investigate subtle metal- and temperature-induced changes in window dimensions of zeolitic imidazolate frameworks (ZIF-8(Zn) and ZIF-67(Co)) and apply such structural tuning for efficient separation of xylene isomers (p-, m-, and o-xylenes). The use of Co instead of Zn favorably modifies window geometry: it accelerates the diffusion of all components by a factor of 2-3 while maintaining closely the same separation efficiency as that of ZIF-8(Zn). Outstanding selectivity above 18:1 and faster isolation of demanded p-xylene from the ternary mixture using ZIF-67(Co) have been demonstrated at room temperature, opening new horizons for its energy-efficient xylene separation. More generally, our findings suggest the prospective ways to tune various MOFs for target liquid-state separations.
Collapse
Affiliation(s)
| | - Artem S Poryvaev
- International Tomography Center SB RAS, Novosibirsk 630090, Russia
| | | | - Sergey A Gromilov
- Nikolaev Institute of Inorganic Chemistry, Novosibirsk 630090, Russia
| | - Matvey V Fedin
- International Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| |
Collapse
|
19
|
Zhang F, Jiao W, Si Y, Yu J, Zhang P, Ding B. Tailoring Nanoporous-Engineered Sponge Fiber Molecular Sieves with Ternary-Nested Architecture for Precise Molecular Separation. ACS Nano 2021; 15:13623-13632. [PMID: 34339181 DOI: 10.1021/acsnano.1c04575] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Polymeric fiber molecular sieves (PFMs) with ultrahigh surface areas, well-defined Murray's-law hierarchical nanoporous structures, and superior self-standing properties are of great interest for molecular-level separation applications. However, creating such PFMs has been proven extremely challenging. Herein, we report a cross-scale pore-forming strategy to create intriguing sponge fiber molecular sieves with hierarchical, tailorable, and molecularly defined nanoporosity by nanospace-confined chain-packing modulation at the molecular level. Robust secondary ultramicropores (<7 Å) and micropores (<2 nm) are in situ constructed in the macro/mesoporous skeletons of sponge fibers to realize a tunable pore size distribution. The resultant PFMs exhibit the integrated properties of ultrahigh surface area (860 m2 g-1), large pore volume (0.6 cm3 g-1), self-standing properties, and excellent molecular sieving performance and are widely applied in acetophenone/phenyl ethanol separation, hydrogen peroxide purification, ethyl acetate separation, and CO2 adsorption fields. The fabrication of such PFMs provides a feasible way for the design and development of polymeric fibrous sieves for molecular separation in large-scale chemical, energy, and environmental operation processes.
Collapse
Affiliation(s)
- Feng Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai 201620, China
| | - Wenling Jiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yang Si
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Peng Zhang
- State Center for International Cooperation on Designer Low-carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| |
Collapse
|
20
|
Ivanova II, Kolyagin YG. Application of Multinuclear MAS NMR for the in situ Monitoring of Hydrothermal Synthesis of Zeolites. Chemistry 2021; 27:14143-14167. [PMID: 34402560 DOI: 10.1002/chem.202101797] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 11/07/2022]
Abstract
In situ MAS NMR studies on the monitoring of hydrothermal synthesis of zeolites are reviewed. The first part of the review contains information on the experimental techniques used for the in situ NMR studies in static and MAS conditions. In the second part, the main capabilities of the in situ 1 H, 11 B, 13 C, 14 N, 19 F, 23 Na, 27 Al, 29 Si and 31 P MAS NMR for the elucidation of the mechanism of hydrothermal synthesis of zeolites are examined and the data on NMR lines identification are summarized. In the last part the main application areas of the techniques are considered and illustrated with examples taken from the mechanistic studies of zeolites A, X, MFI and BEA synthesis. A cross-reference index between the materials studied, the experimental approaches used, the mechanistic information obtained, and the corresponding literature sources is established.
Collapse
Affiliation(s)
- Irina I Ivanova
- Department of Chemistry, Moscow State University, Lenin Hills 1/3, 119991, Moscow, Russia) E.,A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Science, Leninskiy prospect Moskva, 29, 119991, Moscow, Russia
| | - Yury G Kolyagin
- Department of Chemistry, Moscow State University, Lenin Hills 1/3, 119991, Moscow, Russia) E.,A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Science, Leninskiy prospect Moskva, 29, 119991, Moscow, Russia
| |
Collapse
|
21
|
Chang Z, Qiao Y, Yang H, Cao X, Zhu X, He P, Zhou H. Sustainable Lithium-Metal Battery Achieved by a Safe Electrolyte Based on Recyclable and Low-Cost Molecular Sieve. Angew Chem Int Ed Engl 2021; 60:15572-15581. [PMID: 33884720 DOI: 10.1002/anie.202104124] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/18/2021] [Indexed: 11/12/2022]
Abstract
As one typical clean-energy technologies, lithium-metal batteries, especially high-energy-density batteries which use concentrated electrolytes hold promising prospect for the development of a sustainable world. However, concentrated electrolytes with aggregative configurations were achieved at the expense of using extra dose of costly and environmental-unfriendly salts/additives, which casts a shadow over the development of a sustainable world. Herein, without using any expensive salts/additives, we employed commercially-available low-cost and environmental-friendly molecular sieves (zeolite) to sieve the solvation sheath of lithium ions of classic commercialized electrolyte (LiPF6 -EC/DMC), and resulting in a unique zeolite sieved electrolyte which was more aggregative than conventional concentrated electrolytes. Inspiringly, the new-designed electrolyte exhibited largely enhanced anti-oxidation stability under high-voltage (4.6 volts) and elevated temperature (55 °C). NCM-811//Li cells assembled with this electrolyte delivered ultra-stable rechargeabilities (over 1000 cycles for half-cell; 300 cycles for pouch-cell). More importantly, sustainable NCM-811//Li pouch-cell with negligible capacity decay can also be obtained through using recyclable zeolite sieved electrolyte. This conceptually-new way in preparing safe and highly-efficient electrolyte by using low-price molecular sieve would accelerate the development of high-energy-density lithium-ion/lithium-metal batteries.
Collapse
Affiliation(s)
- Zhi Chang
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan
| | - Yu Qiao
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan
| | - Huijun Yang
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan.,Graduate School of System and Information Engineering, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, 305-8573, Japan
| | - Xin Cao
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan.,Graduate School of System and Information Engineering, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, 305-8573, Japan
| | - Xingyu Zhu
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan.,Graduate School of System and Information Engineering, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, 305-8573, Japan
| | - Ping He
- Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Micro-structures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing, 210093, P. R. China
| | - Haoshen Zhou
- Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba, 305-8568, Japan.,Graduate School of System and Information Engineering, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, 305-8573, Japan.,Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Micro-structures, Collaborative Innovation Center of Advanced Micro-structures, Nanjing University, Nanjing, 210093, P. R. China
| |
Collapse
|
22
|
Jia X, Jiang J, Zou S, Han L, Zhu H, Zhang Q, Ma Y, Luo P, Wu P, Mayoral A, Han X, Cheng J, Che S. Library Creation of Ultrasmall Multi-metallic Nanoparticles Confined in Mesoporous MFI Zeolites. Angew Chem Int Ed Engl 2021; 60:14571-14577. [PMID: 33826203 DOI: 10.1002/anie.202103007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/03/2021] [Indexed: 11/06/2022]
Abstract
The development of materials integrated with ultrasmall multi-metal nanoparticles (UMMNs) and mesoporous zeolite is a considerable challenge in chemistry and materials science. We designed a trifunctional surfactant, in which the pyridyl benzimidazole in the hydrophobic tail generates the mesopores through π-π stacking; the diquaternary ammonium in the hydrophilic headgroup direct the formation of MFI zeolite sheets and the nitrogen atoms in the heterocyclic rings coordinate with various metal ions to form UMMNs confined in the zeolite matrix after calcination and reduction. A library of 56 UMMNs confined within both micropores and mesopores of MFI zeolites (MMZs) with 4 mono-, 14 bi- and 38 tri-metallic nanoparticles (sizes of 1.3-4.7 nm) of combinations of Rh, Pd, Pt, Au, Fe, Co, Ni, Cu and Zn were made. An improved catalytic performance was exhibited in the sequence of Rh-MMZ<Rh/Pt-MMZ<Rh/Pt/Ni-MMZ for the mild oxidation of methane to methanol or liquid acid.
Collapse
Affiliation(s)
- Xiaoli Jia
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Shihui Zou
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou, 310036, P. R. China
| | - Lu Han
- Department School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| | - Haiyin Zhu
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Qing Zhang
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Yue Ma
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Peng Luo
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemical Science and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Alvaro Mayoral
- Center for High-Resolution Electron Microscopy (CħEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China.,Instituto de Nanociencia Materiales de Aragon (INMA-CSIC), University of Zaragoza, 12, Calle de Pedro Cerbuna, 50009, Zaragoza, Spain
| | - Xinbao Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jun Cheng
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,Department School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P. R. China
| |
Collapse
|
23
|
Fu M, Wang Y, Wang X, Sun D. Metal-Organic Framework Materials for Light Hydrocarbon Separation. Chempluschem 2021; 86:387-395. [PMID: 33645928 DOI: 10.1002/cplu.202000804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/11/2021] [Indexed: 11/07/2022]
Abstract
In practical industrial applications, the separation of light hydrocarbon mixtures is a very important technology. In recent years, some progress has been made in metal-organic framework materials for light hydrocarbon separation, but further research is still needed. This Minireivew presents a systematic discussion on the latest developments and separation mechanisms of metal-organic framework materials for C2 and C3 mixtures, discusses the problems faced by metal-organic framework materials in the study of light hydrocarbon adsorption and separation, and provides a reference for the design, preparation and process development of low-carbon hydrocarbon adsorption and separation materials in the future.
Collapse
Affiliation(s)
- Mingyue Fu
- College of Science, China University of Petroleum (East China), Qingdao, Shandong, 266580, P. R. China
| | - Yutong Wang
- College of Science, China University of Petroleum (East China), Qingdao, Shandong, 266580, P. R. China
| | - Xiaokang Wang
- College of Science, China University of Petroleum (East China), Qingdao, Shandong, 266580, P. R. China
| | - Daofeng Sun
- College of Science, China University of Petroleum (East China), Qingdao, Shandong, 266580, P. R. China.,School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong, 266580, P. R. China
| |
Collapse
|
24
|
Liu F, Wang B, Liu X. Structure-Directing Roles of Organic Molecules in the Formation of Aluminosilicate and Aluminophosphate Molecular Sieves Revealed by 2D 1 H DQ-SQ NMR Spectroscopy. Chemistry 2021; 27:1955-1960. [PMID: 32896027 DOI: 10.1002/chem.202003892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Indexed: 11/07/2022]
Abstract
Understanding of crystallization mechanisms of molecular sieves is driven by the broad range of usefulness and unique properties they possess. It is still difficult to obtain information related to the crystallization mechanism of molecular sieves, partly because the materials are generally prepared under hydrothermal conditions and the whole reaction happens in the "black box" autoclave. In this work, 2D 1 H DQ-SQ NMR results clearly demonstrate that it is not only the electrostatic interactions between organic structure-directing agents (OSDAs) and the framework, but also the correlation among OSDAs playing the dominant structural directing roles during the crystallization process. Our fundamental understanding of the crystallization mechanism of molecular sieves could be of great value to design and synthesize new molecular sieves with desirable structural properties.
Collapse
Affiliation(s)
- Fangyan Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Biao Wang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiaolong Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| |
Collapse
|
25
|
Pérez-Botella E, Martínez-Franco R, González-Camuñas N, Cantín Á, Palomino M, Moliner M, Valencia S, Rey F. Unusually Low Heat of Adsorption of CO 2 on AlPO and SAPO Molecular Sieves. Front Chem 2020; 8:588712. [PMID: 33195090 PMCID: PMC7655961 DOI: 10.3389/fchem.2020.588712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/18/2020] [Indexed: 11/13/2022] Open
Abstract
The capture of CO2 from post-combustion streams or from other mixtures, such as natural gas, is an effective way of reducing CO2 emissions, which contribute to the greenhouse effect in the atmosphere. One of the developing technologies for this purpose is physisorption on selective solid adsorbents. The ideal adsorbents are selective toward CO2, have a large adsorption capacity at atmospheric pressure and are easily regenerated, resulting in high working capacity. Therefore, adsorbents combining molecular sieving properties and low heats of adsorption of CO2 are of clear interest as they will provide high selectivities and regenerabilities in CO2 separation process. Here we report that some aluminophosphate (AlPO) and silicoaluminophosphate (SAPO) materials with LTA, CHA and AFI structures present lower heats of adsorption of CO2 (13-25 kJ/mol) than their structurally analogous zeolites at comparable framework charges. In some cases, their heats of adsorption are even lower than those of pure silica composition (20-25 kJ/mol). This could mean a great improvement in the regeneration process compared to the most frequently used zeolitic adsorbents for this application while maintaining most of their adsorption capacity, if materials with the right stability and pore size and topology are found.
Collapse
Affiliation(s)
- Eduardo Pérez-Botella
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | | | - Nuria González-Camuñas
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Ángel Cantín
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Miguel Palomino
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Manuel Moliner
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Susana Valencia
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Fernando Rey
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| |
Collapse
|
26
|
Sun T, Xu S, Xiao D, Liu Z, Li G, Zheng A, Liu W, Xu Z, Cao Y, Guo Q, Wang N, Wei Y, Liu Z. Water-Induced Structural Dynamic Process in Molecular Sieves under Mild Hydrothermal Conditions: Ship-in-a-Bottle Strategy for Acidity Identification and Catalyst Modification. Angew Chem Int Ed Engl 2020; 59:20672-20681. [PMID: 32706134 DOI: 10.1002/anie.202009648] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 12/15/2022]
Abstract
Water is the most important substance in nature. Imitating the formation of natural materials, molecular sieves have been synthesized under hydrothermal conditions and applied in industry. Herein, we reveal an unforeseen observation on a very special water-induced structural dynamic process of these materials. Dynamic and reversible breaking and forming of T-O-T bonds in silicoaluminophosphate (SAPO) occurs through interactions between gaseous water and the molecular-sieve framework under mild hydrothermal conditions and is confirmed by detection of the incorporation of 17 O from H2 17 O into molecular-sieve framework. Encapsulation of the bulky molecules trimethylphosphine and pyridine (kinetic diameters much larger than the pore size of SAPO-34) into CHA cavities consolidated the water-induced dynamic process. Consequently, new insights into the dynamic features of molecular sieves in water are provided. The ship-in-a-bottle strategy based on these findings also open new fields for fine acidity identification and gives extra boost in shape-selective catalysis.
Collapse
Affiliation(s)
- Tantan Sun
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shutao Xu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Dong Xiao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhiqiang Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Guangchao Li
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Wenjuan Liu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaochao Xu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yi Cao
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Qiang Guo
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Nan Wang
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yingxu Wei
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| |
Collapse
|
27
|
Yan N, Ma C, Cao Y, Liu X, Cao L, Guo P, Tian P, Liu Z. Rational Design of a Novel Catalyst Cu-SAPO-42 for NH 3 -SCR Reaction. Small 2020; 16:e2000902. [PMID: 32686318 DOI: 10.1002/smll.202000902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/07/2020] [Indexed: 06/11/2023]
Abstract
Cu-exchanged LTA-type aluminosilicate catalyst has been considered as an efficient catalyst for the selective catalytic reduction of NOx with ammonia (NH3 -SCR). However, expensive organic structure-directing agents (OSDAs) and the corrosive fluoride medium are inevitably used to synthesize LTA-type molecular sieve (high-silica LTA-type aluminosilicate and its analogue LTA-type silicoaluminophosphate SAPO-42). Herein, a series of cheap and commercialized OSDAs, which are successfully applied for the targeted synthesis of SAPO-42 in the fluoride-free system, are identified by a novel RSS (refine, summarize, and search) approach. Furthermore, Cu-SAPO-42 catalysts are utilized for NH3 -SCR. Among these catalysts, Cu-SAPO-42 prepared with 2-(butylamino)ethanol (BAEA) as OSDA demonstrates the excellent activity even after hydrothermal aging at 800 °C for 16 h, which shows much better hydrothermal stability than the commercialized Cu-SAPO-34 catalyst with comparable Si and Cu contents. Electron paramagnetic resonance (EPR) spectroscopy and Rietveld refinement are performed to identify the locations of active Cu2+ ions. It turns out that the active Cu2+ ions are distributed near the center of single 6-rings of the lta cage.
Collapse
Affiliation(s)
- Nana Yan
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Chao Ma
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, P.R. China
| | - Yi Cao
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P.R. China
| | - Xiaona Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Lei Cao
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
| | - Peng Guo
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
| | - Peng Tian
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China
| |
Collapse
|
28
|
Kretzschmar A, Selmert V, Weinrich H, Kungl H, Tempel H, Eichel R. Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage. ChemSusChem 2020; 13:3180-3191. [PMID: 32216123 PMCID: PMC7317881 DOI: 10.1002/cssc.202000520] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/23/2020] [Indexed: 06/06/2023]
Abstract
Carbon nanofibers (CNFs) derived from electrospun polyacrylonitrile (PAN) were investigated with respect to their gas adsorption properties. By employing CO2 adsorption measurements, it is shown that the adsorption capacity and selectivity of the fibers can be tailored by means of the applied carbonization temperature. General pore properties of the CNFs were identified by Ar adsorption measurements, whereas CO2 adsorption measurements provided information about the ultramicroporosity, adsorption energies, and adsorption capacities. Ideal adsorbed solution theory (IAST) selectivities under practically relevant conditions were determined by evaluation of single-component data for N2 and CO2 . Especially for low carbonization temperatures, the CNFs exhibit very good low-pressure adsorption performance and excellent CO2 /N2 IAST selectivities of 350 at 20 mbar and 132 at 1 bar, which are attributed to a molecular-sieve effect in very narrow slit pores. These IAST selectivities are some of the highest values for carbon materials reported in the literature so far and the highest IAST selectivities for as-prepared, non-post-treated carbon ever.
Collapse
Affiliation(s)
- Ansgar Kretzschmar
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
- RWTH Aachen UniversityInstitute of Physical Chemistry52056AachenGermany
| | - Victor Selmert
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
- RWTH Aachen UniversityInstitute of Physical Chemistry52056AachenGermany
| | - Henning Weinrich
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
| | - Hans Kungl
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
| | - Hermann Tempel
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
| | - Rüdiger‐A. Eichel
- Forschungszentrum Jülich GmbHInstitute of Energy and Climate Research—Fundamental Electrochemistry (IEK-9)52425JülichGermany
- RWTH Aachen UniversityInstitute of Physical Chemistry52056AachenGermany
| |
Collapse
|
29
|
Yang M, Fan D, Wei Y, Tian P, Liu Z. Recent Progress in Methanol-to-Olefins (MTO) Catalysts. Adv Mater 2019; 31:e1902181. [PMID: 31496008 DOI: 10.1002/adma.201902181] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Methanol conversion to olefins, as an important reaction in C1 chemistry, provides an alternative platform for producing basic chemicals from nonpetroleum resources such as natural gas and coal. Methanol-to-olefin (MTO) catalysis is one of the critical constraints for the process development, determining the reactor design, and the profitability of the process. After the construction and commissioning of the world's first MTO plant by Dalian Institute of Chemical Physics, based on high-efficiency catalyst and fluidization technology in 2010, more attention has been attracted for a deep understanding of the reaction mechanism and catalysis principle, which has led to the continuous development of catalysts and processes. Herein, the recent progress in MTO catalyst development is summarized, focusing on the advances in the optimization of SAPO-34 catalysts, together with the development efforts on catalysts with preferential ethylene or propylene selectivity.
Collapse
Affiliation(s)
- Miao Yang
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Dong Fan
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yingxu Wei
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Peng Tian
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhongmin Liu
- National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| |
Collapse
|
30
|
Seo S, Ahn NH, Lee JH, Knight LM, Moscoso JG, Sinkler WA, Prabhakar S, Nicholas CP, Hong SB, Lewis GJ. Combined Alkali-Organoammonium Structure Direction of High-Charge-Density Heteroatom-Containing Aluminophosphate Molecular Sieves. Angew Chem Int Ed Engl 2019; 58:9032-9037. [PMID: 31066167 DOI: 10.1002/anie.201902623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/02/2019] [Indexed: 11/08/2022]
Abstract
The charge density mismatch concept was applied to the synthesis of high-charge-density silicoaluminophosphate SAPO-69 (OFF) and SAPO-79 (ERI) and zincoaluminophosphate PST-16 (CGS), PST-17 (BPH), PST-19 (SBS), and ZnAPO-88 (MER) molecular sieves. Combined alkali-organoammonium structure direction in these systems is thus enabled. Structure direction is treated from the perspective of stabilizing an ionic framework, the relationships between reaction charge density (OH- /H3 PO4 ), alkali and organoammonium content, and ionicity of tetrahedral framework atoms in successful structure direction are presented.
Collapse
Affiliation(s)
- Seungwan Seo
- Center for Ordered Nanoporous Materials Synthesis, Division of Environmental Science and Engineering, POSTECH, Pohang, 37673, Korea
| | - Nak Ho Ahn
- Center for Ordered Nanoporous Materials Synthesis, Division of Environmental Science and Engineering, POSTECH, Pohang, 37673, Korea
| | - Jeong Hwan Lee
- Center for Ordered Nanoporous Materials Synthesis, Division of Environmental Science and Engineering, POSTECH, Pohang, 37673, Korea
| | - Lisa M Knight
- New Materials Group, Honeywell UOP, 1349 Moffett Park Dr, Sunnyvale, CA, 94089, USA
| | - Jaime G Moscoso
- New Materials Group, Honeywell UOP, 1349 Moffett Park Dr, Sunnyvale, CA, 94089, USA
| | - Wharton A Sinkler
- New Materials Group, Honeywell UOP, 1349 Moffett Park Dr, Sunnyvale, CA, 94089, USA
| | - Sesh Prabhakar
- New Materials Group, Honeywell UOP, 1349 Moffett Park Dr, Sunnyvale, CA, 94089, USA
| | | | - Suk Bong Hong
- Center for Ordered Nanoporous Materials Synthesis, Division of Environmental Science and Engineering, POSTECH, Pohang, 37673, Korea
| | - Gregory J Lewis
- New Materials Group, Honeywell UOP, 1349 Moffett Park Dr, Sunnyvale, CA, 94089, USA
| |
Collapse
|
31
|
Zhang M, Jing X, Zhao S, Shao P, Zhang Y, Yuan S, Li Y, Gu C, Wang X, Ye Y, Feng X, Wang B. Electropolymerization of Molecular-Sieving Polythiophene Membranes for H 2 Separation. Angew Chem Int Ed Engl 2019; 58:8768-8772. [PMID: 31050847 DOI: 10.1002/anie.201904385] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Indexed: 11/07/2022]
Abstract
Membrane technologies that do not rely on heat for industrial gas separation would lower global energy cost. While polymeric, inorganic, and mixed-matrix separation membranes have been rapidly developed, the bottleneck is balancing the processability, selectivity, and permeability. Reported here is a softness adjustment of rigid networks (SARs) strategy to produce flexible, stand-alone, and molecular-sieving membranes by electropolymerization. Here, 14 membranes were rationally designed and synthesized and their gas separation ability and mechanical performance were studied. The separation performance of the membranes for H2 /CO2 , H2 /N2 , and H2 /CH4 can exceed the Robeson upper bound, among which, H2 /CO2 separation selectivity reaches 50 with 626 Barrer of H2 permeability. The long-term and chemical stability tests demonstrate their potential for industrial applications. This simple, scalable, and cost-effective strategy holds promise for the design other polymers for key energy-intensive separations.
Collapse
Affiliation(s)
- Mengxi Zhang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xuechun Jing
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shuang Zhao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Pengpeng Shao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yuanyuan Zhang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shuai Yuan
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yanshuo Li
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Cheng Gu
- State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiaoqi Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.,PetroChina Research Institute of Petroleum Exploration & Development, Beijing, 100083, P. R. China
| | - Yanchun Ye
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiao Feng
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Bo Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| |
Collapse
|
32
|
Biswal BP, Becker D, Chandrasekhar N, Seenath JS, Paasch S, Machill S, Hennersdorf F, Brunner E, Weigand JJ, Berger R, Feng X. Exploration of Thiazolo[5,4-d]thiazole Linkages in Conjugated Porous Organic Polymers for Chemoselective Molecular Sieving. Chemistry 2018; 24:10868-10875. [PMID: 29808944 DOI: 10.1002/chem.201802631] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 12/12/2022]
Abstract
Porous organic polymers (POPs) have attracted significant attention towards molecular adsorption in recent years due to their high porosity, diverse functionality and excellent chemical stability. In this work, we present a systematic case study on the formation of thiazolo[5,4-d]thiazole (TzTz) linkages through model compounds and its integration to synthesize a set of three novel, thermo-chemically stable TzTz-linked POPs, namely TzTz-POP-3, TzTz-POP-4, and TzTz-POP-5 with triphenylbenzene, tetraphenylpyrene and tetra(hydroxyphenyl)methane cores, respectively. Interestingly, the integrated TzTz moiety of the represented TzTz-POP-3 renders chemoselective removal of organic dye fluorescein (FL) from a mixture with parafuchsine (FU) in aqueous solution. The TzTz-POP-3 offered excellent chemoselectivity of ≈1:7 (FL:FU), compared to alike porous materials demonstrated for similar applications due to the presence of multiple active anchoring sites coupled with permanent porosity and appropriate pore window.
Collapse
Affiliation(s)
- Bishnu P Biswal
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| | - Daniel Becker
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| | - Naisa Chandrasekhar
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| | - Jensheer Shamsudeen Seenath
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| | - Silvia Paasch
- Chair of Bioanalytical Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Susanne Machill
- Chair of Bioanalytical Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Felix Hennersdorf
- Chair of Inorganic Molecular Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Eike Brunner
- Chair of Bioanalytical Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Jan J Weigand
- Chair of Inorganic Molecular Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Reinhard Berger
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| | - Xinliang Feng
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062, Dresden, Germany
| |
Collapse
|
33
|
Wang Z, Ren H, Zhang S, Zhang F, Jin J. Carbon Molecular Sieve Membranes Derived from Tröger's Base-Based Microporous Polyimide for Gas Separation. ChemSusChem 2018; 11:916-923. [PMID: 29349873 DOI: 10.1002/cssc.201702243] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/22/2018] [Indexed: 06/07/2023]
Abstract
Carbon molecular sieve (CMS)-based membranes have attracted great attention because of their outstanding gas-separation performance. The polymer precursor is a key point for the preparation of high-performance CMS membranes. In this work, a microporous polyimide precursor containing a Tröger's base unit was used for the first time to prepare CMS membranes. By optimizing the pyrolysis procedure and the soaking temperature, three TB-CMS membranes were obtained. Gas-permeation tests revealed that the comprehensive gas-separation performance of the TB-CMS membranes was greatly enhanced relative to that of most state-of-the-art CMS membranes derived from polyimides reported so far.
Collapse
Affiliation(s)
- Zhenggong Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, P.R. China
| | - Huiting Ren
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Shenxiang Zhang
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Feng Zhang
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Jian Jin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, P.R. China
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| |
Collapse
|
34
|
Hillman F, Brito J, Jeong HK. Rapid One-Pot Microwave Synthesis of Mixed-Linker Hybrid Zeolitic-Imidazolate Framework Membranes for Tunable Gas Separations. ACS Appl Mater Interfaces 2018; 10:5586-5593. [PMID: 29350515 DOI: 10.1021/acsami.7b18506] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The relatively slow and complex fabrication processes of polycrystalline metal-organic framework (MOF) membranes often times restrict their way to commercialization, despite their potential for molecular separation applications. Herein, we report a rapid one-pot microwave synthesis of mixed-linker hybrid zeolitic-imidazolate framework (ZIF) membranes consisting of 2-methylimidazolate (ZIF-8 linker) and benzimidazolate (ZIF-7 linker) linkers, termed ZIF-7-8 membranes. The fast-volumetric microwave heating in conjunction with a unique counter diffusion of metal and linker solutions enabled unprecedented rapid synthesis of well-intergrown ZIF-7-8 membranes in ∼90 s, the fastest MOF membrane preparation up to date. Furthermore, we were able to tune the molecular sieving properties of the ZIF-7-8 membranes by varying the benzimidazole-to-2-methylimidazole (bIm-to-mIm) linker ratio in the hybrid frameworks. The tuning of their molecular sieving properties led to the systematic change in the permeance and selectivity of various small gases. The unprecedented rapid synthesis of well-intergrown ZIF-7-8 membranes with tunable molecular sieving properties is an important step forward for the commercial gas separation applications of ZIF membranes.
Collapse
Affiliation(s)
- Febrian Hillman
- Artie McFerrin Department of Chemical Engineering and ‡Department of Materials Science and Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States
| | - Jordan Brito
- Artie McFerrin Department of Chemical Engineering and ‡Department of Materials Science and Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States
| | - Hae-Kwon Jeong
- Artie McFerrin Department of Chemical Engineering and ‡Department of Materials Science and Engineering, Texas A&M University , 3122 TAMU, College Station, Texas 77843-3122, United States
| |
Collapse
|
35
|
Li B, Cui X, O'Nolan D, Wen HM, Jiang M, Krishna R, Wu H, Lin RB, Chen YS, Yuan D, Xing H, Zhou W, Ren Q, Qian G, Zaworotko MJ, Chen B. An Ideal Molecular Sieve for Acetylene Removal from Ethylene with Record Selectivity and Productivity. Adv Mater 2017; 29:1704210. [PMID: 29125651 DOI: 10.1002/adma.201704210] [Citation(s) in RCA: 213] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/14/2017] [Indexed: 06/07/2023]
Abstract
Realization of ideal molecular sieves, in which the larger gas molecules are completely blocked without sacrificing high adsorption capacities of the preferred smaller gas molecules, can significantly reduce energy costs for gas separation and purification and thus facilitate a possible technological transformation from the traditional energy-intensive cryogenic distillation to the energy-efficient, adsorbent-based separation and purification in the future. Although extensive research endeavors are pursued to target ideal molecular sieves among diverse porous materials, over the past several decades, ideal molecular sieves for the separation and purification of light hydrocarbons are rarely realized. Herein, an ideal porous material, SIFSIX-14-Cu-i (also termed as UTSA-200), is reported with ultrafine tuning of pore size (3.4 Å) to effectively block ethylene (C2 H4 ) molecules but to take up a record-high amount of acetylene (C2 H2 , 58 cm3 cm-3 under 0.01 bar and 298 K). The material therefore sets up new benchmarks for both the adsorption capacity and selectivity, and thus provides a record purification capacity for the removal of trace C2 H2 from C2 H4 with 1.18 mmol g-1 C2 H2 uptake capacity from a 1/99 C2 H2 /C2 H4 mixture to produce 99.9999% pure C2 H4 (much higher than the acceptable purity of 99.996% for polymer-grade C2 H4 ), as demonstrated by experimental breakthrough curves.
Collapse
Affiliation(s)
- Bin Li
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xili Cui
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Daniel O'Nolan
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, V94 T9PX, Republic of Ireland
| | - Hui-Min Wen
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-0698, USA
| | - Mengdie Jiang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, Netherlands
| | - Hui Wu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899-6102, USA
| | - Rui-Biao Lin
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-0698, USA
| | - Yu-Sheng Chen
- ChemMatCARS, Center for Advanced Radiation Sources, The University of Chicago, 9700 South Cass Avenue, Argonne, IL, 60439, USA
| | - Daqiang Yuan
- State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Huabin Xing
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wei Zhou
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899-6102, USA
| | - Qilong Ren
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological 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 and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Michael J Zaworotko
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, V94 T9PX, Republic of Ireland
| | - Banglin Chen
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-0698, USA
| |
Collapse
|
36
|
Liu F, Huang K, Wu Q, Dai S. Solvent-Free Self-Assembly to the Synthesis of Nitrogen-Doped Ordered Mesoporous Polymers for Highly Selective Capture and Conversion of CO 2. Adv Mater 2017; 29:1700445. [PMID: 28488788 DOI: 10.1002/adma.201700445] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 02/28/2017] [Indexed: 06/07/2023]
Abstract
A solvent-free induced self-assembly technology for the synthesis of nitrogen-doped ordered mesoporous polymers (N-OMPs) is developed, which is realized by mixing polymer precursors with block copolymer templates, curing at 140-180 °C, and calcination to remove the templates. This synthetic strategy represents a significant advancement in the preparation of functional porous polymers through a fast and scalable yet environmentally friendly route, since no solvents or catalysts are used. The synthesized N-OMPs and their derived catalysts are found to exhibit competitive CO2 capacities (0.67-0.91 mmol g-1 at 25 °C and 0.15 bar), extraordinary CO2 /N2 selectivities (98-205 at 25 °C), and excellent activities for catalyzing conversion of CO2 into cyclic carbonate (conversion >95% at 100 °C and 1.2 MPa for 1.5 h). The solvent-free technology developed in this work can also be extended to the synthesis of N-OMP/SiO2 nanocomposites, mesoporous SiO2 , crystalline mesoporous TiO2 , and TiPO, demonstrating its wide applicability in porous material synthesis.
Collapse
Affiliation(s)
- Fujian Liu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Kuan Huang
- Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education, School of Resources Environmental and Chemical Engineering, Nanchang University, Nanchang, 330031, China
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
| | - Qin Wu
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Sheng Dai
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
- Chemical Sciences Division, Oak Ridge National Laboratory, Knoxville, TN, 37831, USA
| |
Collapse
|
37
|
Zheng G, de Marchi S, López-Puente V, Sentosun K, Polavarapu L, Pérez-Juste I, Hill EH, Bals S, Liz-Marzán LM, Pastoriza-Santos I, Pérez-Juste J. Encapsulation of Single Plasmonic Nanoparticles within ZIF-8 and SERS Analysis of the MOF Flexibility. Small 2016; 12:3935-43. [PMID: 27273895 DOI: 10.1002/smll.201600947] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/03/2016] [Indexed: 05/28/2023]
Abstract
Hybrid nanostructures composed of metal nanoparticles and metal-organic frameworks (MOFs) have recently received increasing attention toward various applications due to the combination of optical and catalytic properties of nanometals with the large internal surface area, tunable crystal porosity and unique chemical properties of MOFs. Encapsulation of metal nanoparticles of well-defined shapes into porous MOFs in a core-shell type configuration can thus lead to enhanced stability and selectivity in applications such as sensing or catalysis. In this study, the encapsulation of single noble metal nanoparticles with arbitrary shapes within zeolitic imidazolate-based metal organic frameworks (ZIF-8) is demonstrated. The synthetic strategy is based on the enhanced interaction between ZIF-8 nanocrystals and metal nanoparticle surfaces covered by quaternary ammonium surfactants. High resolution electron microscopy and tomography confirm a complete core-shell morphology. Such a well-defined morphology allowed us to study the transport of guest molecules through the ZIF-8 porous shell by means of surface-enhanced Raman scattering by the metal cores. The results demonstrate that even molecules larger than the ZIF-8 aperture and pore size may be able to diffuse through the framework and reach the metal core.
Collapse
Affiliation(s)
- Guangchao Zheng
- Departamento de Quıímica Física, Universidade de Vigo, 36310, Vigo, Spain
| | - Sarah de Marchi
- Departamento de Quıímica Física, Universidade de Vigo, 36310, Vigo, Spain
| | | | - Kadir Sentosun
- EMAT-University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | | | | | - Eric H Hill
- Bionanoplasmonics Laboratory, CIC biomaGUNE, 20009, Donostia-San, Sebastián, Spain
| | - Sara Bals
- EMAT-University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Luis M Liz-Marzán
- Bionanoplasmonics Laboratory, CIC biomaGUNE, 20009, Donostia-San, Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013, Bilbao, Spain
| | | | - Jorge Pérez-Juste
- Departamento de Quıímica Física, Universidade de Vigo, 36310, Vigo, Spain
| |
Collapse
|
38
|
Nimbalkar UD, Tupe SG, Seijas Vazquez JA, Khan FAK, Sangshetti JN, Nikalje APG. Ultrasound- and Molecular Sieves-Assisted Synthesis, Molecular Docking and Antifungal Evaluation of 5-(4-(Benzyloxy)-substituted phenyl)-3-((phenylamino)methyl)-1,3,4-oxadiazole-2(3H)-thiones. Molecules 2016; 21:molecules21050484. [PMID: 27171073 PMCID: PMC6273549 DOI: 10.3390/molecules21050484] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 11/20/2022] Open
Abstract
A novel series of 5-(4-(benzyloxy)substituted phenyl)-3-((phenyl amino)methyl)-1,3,4-oxadiazole-2(3H)-thione Mannich bases 6a–o were synthesized in good yield from the key compound 5-(4-(benzyloxy)phenyl)-1,3,4-oxadiazole-2(3H)-thione by aminomethylation with paraformaldehyde and substituted amines using molecular sieves and sonication as green chemistry tools. The antifungal activity of the new products was evaluated against seven human pathogenic fungal strains, namely, Candida albicans ATCC 24433, Candida albicans ATCC 10231, Candida glabrata NCYC 388, Cryptococcus neoformans ATCC 34664, Cryptococcus neoformans PRL 518, Aspergillus fumigatus NCIM 902 and Aspergillus niger ATCC 10578. The synthesized compounds 6d, 6f, 6g, 6h and 6j exhibited promising antifungal activity against the tested fungal pathogens. In molecular docking studies, derivatives 6c, 6f and 6i showed good binding at the active site of C. albicans cytochrome P450 enzyme lanosterol 14 α-demethylase. The in vitro antifungal activity results and docking studies indicated that the synthesized compounds have potential antifungal activity and can be further optimized as privileged scaffolds to design and develop potent antifungal drugs.
Collapse
Affiliation(s)
- Urja D Nimbalkar
- Maulana Azad P. G. and Research Centre, Dr. Rafiq Zakaria Campus, Rauza Baug, Aurangabad 431001, India.
| | - Santosh G Tupe
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Julio A Seijas Vazquez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad of Santiago De Compostela, Alfonso X el Sabio, Lugo 27002, Spain.
| | - Firoz A Kalam Khan
- Y. B. Chavan College of Pharmacy, Dr. Rafiq Zakaria Campus, Rauza Baug, Aurangabad 431001, India.
| | - Jaiprakash N Sangshetti
- Y. B. Chavan College of Pharmacy, Dr. Rafiq Zakaria Campus, Rauza Baug, Aurangabad 431001, India.
| | - Anna Pratima G Nikalje
- Y. B. Chavan College of Pharmacy, Dr. Rafiq Zakaria Campus, Rauza Baug, Aurangabad 431001, India.
| |
Collapse
|
39
|
López-Puente V, Angelomé PC, Soler-Illia GJAA, Liz-Marzán LM. Selective SERS Sensing Modulated by Functionalized Mesoporous Films. ACS Appl Mater Interfaces 2015; 7:25633-25640. [PMID: 26536368 DOI: 10.1021/acsami.5b10543] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A hybrid material comprising metal nanoparticles embedded in functionalized mesoporous thin films was constructed, and its use as a selective SERS-based sensor was demonstrated. The presence of specific functional groups in the pore network allows control over the surface chemistry of the pores, tuning the selectivity for specific molecules. Amino-functionalized hybrid mesoporous thin films were used in a proof of concept experiment, to discern the presence of methylene blue (MB) in mixtures with acid blue (AB), with no need for any sample pretreatment step. Selective detection of MB was possible through entrapment of AB in the mesoporous matrix, based on its high affinity for amino groups. The sensor selectivity can be tuned by varying the solution pH, rendering a pH responsive surface and thus, selective SERS-based sensing. The developed sensors allow specific detection of molecules in complex matrixes.
Collapse
Affiliation(s)
| | - Paula C Angelomé
- Gerencia Química, Centro Atómico Constituyentes, CNEA , Avenida Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
| | - Galo J A A Soler-Illia
- Gerencia Química, Centro Atómico Constituyentes, CNEA , Avenida Gral. Paz 1499, B1650KNA San Martín, Buenos Aires, Argentina
| | - Luis M Liz-Marzán
- Departamento de Química Física, Universidade de Vigo , 36310 Vigo, Spain
- Bionanoplasmonics Laboratory, CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science , 48013 Bilbao, Spain
| |
Collapse
|
40
|
Wang J, Yokoi T, Kondo JN, Tatsumi T, Zhao Y. Titanium(IV) in the organic-structure-directing-agent-free synthesis of hydrophobic and large-pore molecular sieves as redox catalysts. ChemSusChem 2015; 8:2476-2480. [PMID: 26073555 DOI: 10.1002/cssc.201500443] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Indexed: 06/04/2023]
Abstract
Titanium(IV) incorporated into the framework of molecular sieves can be used as a highly active and sustainable catalyst for the oxidation of industrially important organic molecules. Unfortunately, the current process for the incorporation of titanium(IV) requires a large amount of expensive organic molecules used as organic-structure-directing agents (OSDAs), and this significantly increases the production costs and causes environmental problems owing to the removal of OSDAs by pyrolysis. Herein, an OSDA-free process was developed to incorporate titanium(IV) into BEA-type molecular sieves for the first time. More importantly, the hydrophobic environment and the robust, 3 D, and large pore structure of the titanium(IV)-incorporated molecular sieves fabricated from the OSDA-free process created a catalyst that was extremely active and selective for the epoxidation of bulky cyclooctene in comparison to Ti-incorporated BEA-type molecular sieves synthesized with OSDAs and commercial titanosilicate TS-1.
Collapse
Affiliation(s)
- Jingui Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 (Singapore) http://www.ntu.edu.sg/home/zhaoyanli/
- Catalytic Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 (Japan)
| | - Toshiyuki Yokoi
- Catalytic Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 (Japan)
| | - Junko N Kondo
- Catalytic Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 (Japan)
| | - Takashi Tatsumi
- Catalytic Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 (Japan).
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 (Singapore) http://www.ntu.edu.sg/home/zhaoyanli/.
- School of Materials Science and Engineering, Nanyang Technological University, 639798 (Singapore).
| |
Collapse
|
41
|
Abstract
In the last few years, important efforts have been made to synthesize so-called "multipore" zeolites, which contain channels of different dimensions within the same crystalline structure. This is a very attractive subject, since the presence of pores of different sizes would favor the preferential diffusion of reactants and products through those different channel systems, allowing unique catalytic activities for specific chemical processes. In this Review we describe the most attractive achievements in the rational synthesis of multipore zeolites, containing small to extra-large pores, and the improvements reported for relevant chemical processes when these multipore zeolites have been used as catalysts.
Collapse
Affiliation(s)
- Manuel Moliner
- Instituto de Tecnología Química, Universidad Politécnica de Valencia, Consejo Superior de Investigaciones Científicas (UPV-CSIC), Valencia, 46022 (Spain)
| | | | | |
Collapse
|
42
|
Ghanem BS, Swaidan R, Ma X, Litwiller E, Pinnau I. Energy-efficient hydrogen separation by AB-type ladder-polymer molecular sieves. Adv Mater 2014; 26:6696-6700. [PMID: 25043652 DOI: 10.1002/adma.201401328] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/29/2014] [Indexed: 06/03/2023]
Abstract
Increases in hydrogen selectivity of more than 100% compared with the most selective ladder polymer of intrinsic microporosity (PIM) reported to date are achieved with self-polymerized A-B-type ladder monomers comprising rigid and three-dimensional 9,10-dialkyl-substituted triptycene moieties. The selectivities match those of materials commercially employed in hydrogen separation, but the gas permeabilities are 150-fold higher. This new polymer molecular sieve is also the most selective PIM for air separation.
Collapse
Affiliation(s)
- Bader S Ghanem
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Al-Jazri Building, Thuwal, 23955-6900, Saudi Arabia
| | | | | | | | | |
Collapse
|
43
|
Canning J, Huyang G, Ma M, Beavis A, Bishop D, Cook K, McDonagh A, Shi D, Peng GD, Crossley MJ. Percolation Diffusion into Self-Assembled Mesoporous Silica Microfibres. Nanomaterials (Basel) 2014; 4:157-74. [PMID: 28348290 DOI: 10.3390/nano4010157] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 02/28/2014] [Accepted: 03/01/2014] [Indexed: 01/22/2023]
Abstract
Percolation diffusion into long (11.5 cm) self-assembled, ordered mesoporous microfibres is studied using optical transmission and laser ablation inductive coupled mass spectrometry (LA-ICP-MS). Optical transmission based diffusion studies reveal rapid penetration (<5 s, D > 80 μm²∙s-¹) of Rhodamine B with very little percolation of larger molecules such as zinc tetraphenylporphyrin (ZnTPP) observed under similar loading conditions. The failure of ZnTPP to enter the microfibre was confirmed, in higher resolution, using LA-ICP-MS. In the latter case, LA-ICP-MS was used to determine the diffusion of zinc acetate dihydrate, D~3 × 10-4 nm²∙s-1. The large differences between the molecules are accounted for by proposing ordered solvent and structure assisted accelerated diffusion of the Rhodamine B based on its hydrophilicity relative to the zinc compounds. The broader implications and applications for filtration, molecular sieves and a range of devices and uses are described.
Collapse
|
44
|
Moliner M, Rey F, Corma A. Towards the rational design of efficient organic structure-directing agents for zeolite synthesis. Angew Chem Int Ed Engl 2013; 52:13880-9. [PMID: 24115577 DOI: 10.1002/anie.201304713] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Indexed: 11/10/2022]
Abstract
Zeolites are crystalline microporous materials with application in diverse fields, especially in catalysis. The ability to prepare zeolites with targeted physicochemical properties for a specific catalytic application is a matter of great interest, because it allows the efficiency of the entire chemical process to be increased (higher product yields, lower undesired by-products, less energy consumption, and cost savings, etc). Nevertheless, directing the zeolite crystallization towards the material with the desired framework topology, crystal size, or chemical composition is not an easy task, since several variables influence the nucleation and crystallization processes. The combination of accumulated knowledge, rationalization, and innovation has allowed the synthesis of unique zeolitic structures in the last few years. This is especially true in terms of the design of organic and inorganic structure-directing agents (SDAs). In this Minireview we will present the rationale we have followed in our studies to synthesize new zeolite structures, while putting this in perspective with the advances made by other researchers of the zeolite community.
Collapse
Affiliation(s)
- Manuel Moliner
- Instituto de Tecnología Química (UPV-CSIC), Universidad Politécnica de Valencia, Consejo Superior de Investigaciones Científicas, 46022 Valencia (Spain)
| | | | | |
Collapse
|
45
|
Zhang C, Lively RP, Zhang K, Johnson JR, Karvan O, Koros WJ. Unexpected Molecular Sieving Properties of Zeolitic Imidazolate Framework-8. J Phys Chem Lett 2012; 3:2130-4. [PMID: 26295759 DOI: 10.1021/jz300855a] [Citation(s) in RCA: 314] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We studied molecular sieving properties of zeolitic imidazolate framework-8 (ZIF-8) by estimating the thermodynamically corrected diffusivities of probe molecules at 35 °C. From helium (2.6 Å) to iso-C4H10 (5.0 Å), the corrected diffusivity drops 14 orders of magnitude. Our results further suggest that the effective aperture size of ZIF-8 for molecular sieving is in the range of 4.0 to 4.2 Å, which is significantly larger than the XRD-derived value (3.4 Å) and between the well-known aperture size of zeolite 4A (3.8 Å) and 5A (4.3 Å). Interestingly, because of aperture flexibility, the studied C4 hydrocarbon molecules that are larger than this effective aperture size still adsorb in the micropores of ZIF-8 with kinetic selectivities for iso-C4H8/iso-C4H10 of 180 and n-C4H10/iso-C4H10 of 2.5 × 10(6). These unexpected molecular sieving properties open up new opportunities for ZIF materials for separations that cannot be economically achieved by traditional microporous adsorbents such as synthetic zeolites.
Collapse
Affiliation(s)
| | - Ryan P Lively
- ‡Algenol Biofuels, 28100 Bonita Grande Drive, Bonita Springs, Florida 34315, United States
| | | | | | | | | |
Collapse
|