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Liu Y, Dai W, Zheng J, Du Y, Wang Q, Hedin N, Qin B, Li R. Selective and Controllable Cracking of Polyethylene Waste by Beta Zeolites with Different Mesoporosity and Crystallinity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404426. [PMID: 38976554 DOI: 10.1002/advs.202404426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/16/2024] [Indexed: 07/10/2024]
Abstract
Waste plastics bring about increasingly serious environmental challenges, which can be partly addressed by their interconversion into valuable compounds. It is hypothesized that the porosity and acidity of a zeolite-based catalyst will affect the selectivity and effectiveness, enabling a controllable and selective conversion of polyethylene (PE) into gas-diesel or lubricating base oil. A series of embryonic, partial- and well-crystalline zeolites beta with adjustable porosity and acidity are prepared from mesoporous SBA-15. The catalysts and catalytic systems are studied with nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and adsorption kinetics and catalytic reactions. The adjustable porosity and acidity of zeolite-beta-based catalysts achieve a controllable selectivity toward gas-diesel or lubricating base oil for PE cracking. With a catalyst with mesopores and appropriate acid sites, a fast escape and reduced production of cracking of intermediates are observed, leading to a significant fraction (88.7%) of lubricating base oil. With more micropores, a high acid density, and strong acid strength, PE is multiply cracked into low carbon number hydrocarbons. The strong acid center of the zeolite is confirmed to facilitate significantly the activation of hydrogen (H2), and, an in situ ammonia poisoning strategy can significantly inhibit hydrogen transfer and effectively regulate the product distribution.
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Affiliation(s)
- Yanchao Liu
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Weijiong Dai
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Jiajun Zheng
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yanze Du
- SINOPEC Dalian Research Institute of Petroleum & Petrochemicals Co., Ltd, Dalian, 116045, China
| | - Quanhua Wang
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Niklas Hedin
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-10691, Sweden
| | - Bo Qin
- SINOPEC Dalian Research Institute of Petroleum & Petrochemicals Co., Ltd, Dalian, 116045, China
| | - Ruifeng Li
- Research Centre of Energy Chemical & Catalytic Technology, Taiyuan University of Technology, Taiyuan, 030024, China
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Tian Z, Hao Y, Chee TS, Cai H, Zhu L, Duan T, Xiao C. Hollow Core-Shell Bismuth Based Al-Doped Silica Materials for Powerful Co-Sequestration of Radioactive I 2 and CH 3I. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308451. [PMID: 38059738 DOI: 10.1002/smll.202308451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/30/2023] [Indexed: 12/08/2023]
Abstract
Developing pure inorganic materials capable of efficiently co-removing radioactive I2 and CH3I has always been a major challenge. Bismuth-based materials (BBMs) have garnered considerable attention due to their impressive I2 sorption capacity at high-temperature and cost-effectiveness. However, solely relying on bismuth components falls short in effectively removing CH3I and has not been systematically studied. Herein, a series of hollow mesoporous core-shell bifunctional materials with adjustable shell thickness and Si/Al ratio by using silica-coated Bi2O3 as a hard template and through simple alkaline-etching and CTAB-assisted surface coassembly methods (Bi@Al/SiO2) is successfully synthesized. By meticulously controlling the thickness of the shell layer and precisely tuning of the Si/Al ratio composition, the synthesis of BBMs capable of co-removing radioactive I2 and CH3I for the first time, demonstrating remarkable sorption capacities of 533.1 and 421.5 mg g-1, respectively is achieved. Both experimental and theoretical calculations indicate that the incorporation of acid sites within the shell layer is a key factor in achieving effective CH3I sorption. This innovative structural design of sorbent enables exceptional co-removal capabilities for both I2 and CH3I. Furthermore, the core-shell structure enhances the retention of captured iodine within the sorbents, which may further prevent potential leakage.
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Affiliation(s)
- Zhenjiang Tian
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yuxun Hao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Tien-Shee Chee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - He Cai
- Department of Earth and Environmental Sciences, The University of Manchester, 176 Oxford Rd, Manchester, M13 9QQ, UK
| | - Lin Zhu
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Tao Duan
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Nuclear Science and Technology, Zhejiang University, Hangzhou, 310058, P. R. China
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Salvia WS, Zhao TY, Chatterjee P, Huang W, Perras FA. Are the Brønsted acid sites in amorphous silica-alumina bridging? Chem Commun (Camb) 2023; 59:13962-13965. [PMID: 37930239 DOI: 10.1039/d3cc04237e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Competing models exist to explain the differences in the activity of zeolites and amorphous silica-aluminas. Some postulate that silica-alumina contains dilute zeolitic bridging acid sites, while others favor a pseudo-bridging silanol model. We employed a selective isotope labeling strategy to assess the existence of Si-O(H)-Al bonds using NMR-based distance measurements.
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Affiliation(s)
- William S Salvia
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
- Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, USA.
| | - Tommy Yunpu Zhao
- Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, USA.
| | - Puranjan Chatterjee
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
- Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, USA.
| | - Wenyu Huang
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
- Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, USA.
| | - Frédéric A Perras
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
- Chemical and Biological Sciences Division, Ames National Laboratory, Ames, IA 50011, USA.
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Matveeva VG, Bronstein LM. Design of Bifunctional Nanocatalysts Based on Zeolites for Biomass Processing. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2274. [PMID: 37630859 PMCID: PMC10458776 DOI: 10.3390/nano13162274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023]
Abstract
Bifunctional catalysts consisting of metal-containing nanoparticles (NPs) and zeolite supports have received considerable attention due to their excellent catalytic properties in numerous reactions, including direct (biomass is a substrate) and indirect (platform chemical is a substrate) biomass processing. In this short review, we discuss major approaches to the preparation of NPs in zeolites, concentrating on methods that allow for the best interplay (synergy) between metal and acid sites, which is normally achieved for small NPs well-distributed through zeolite. We focus on the modification of zeolites to provide structural integrity and controlled acidity, which can be accomplished by the incorporation of certain metal ions or elements. The other modification avenue is the adjustment of zeolite morphology, including the creation of numerous defects for the NP entrapment and designed hierarchical porosity for improved mass transfer. In this review, we also provide examples of synergy between metal and acid sites and emphasize that without density functional theory calculations, many assumptions about the interactions between active sites remain unvalidated. Finally, we describe the most interesting examples of direct and indirect biomass (waste) processing for the last five years.
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Affiliation(s)
- Valentina G. Matveeva
- Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, 22 A. Nikitina St., 170026 Tver, Russia;
- Regional Technological Centre, Tver State University, Zhelyabova St., 33, 170100 Tver, Russia
| | - Lyudmila M. Bronstein
- Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, 22 A. Nikitina St., 170026 Tver, Russia;
- Department of Chemistry, Indiana University, 800 E. Kirkwood Av., Bloomington, IN 47405, USA
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Xiao Y, Zhan N, Li J, Tan Y, Ding Y. Highly Selective and Stable Cu Catalysts Based on Ni-Al Catalytic Systems for Bioethanol Upgrading to n-Butanol. Molecules 2023; 28:5683. [PMID: 37570654 PMCID: PMC10419762 DOI: 10.3390/molecules28155683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/19/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023] Open
Abstract
The catalytic upgrading of ethanol into butanol through the Guerbet coupling reaction has received increasing attention recently due to the sufficient supply of bioethanol and the versatile applications of butanol. In this work, four different supported Cu catalysts, i.e., Cu/Al2O3, Cu/NiO, Cu/Ni3AlOx, and Cu/Ni1AlOx (Ni2+/Al3+ molar ratios of 3 and 1), were applied to investigate the catalytic performances for ethanol conversion. From the results, Ni-containing catalysts exhibit better reactivity; Al-containing catalysts exhibit better stability; but in terms of ethanol conversion, butanol selectivity, and catalyst stability, a corporative effect between Ni-Al catalytic systems can be clearly observed. Combined characterizations such as XRD, TEM, XPS, H2-TPR, and CO2/NH3-TPD were applied to analyze the properties of different catalysts. Based on the results, Cu species provide the active sites for ethanol dehydrogenation/hydrogenation, and the support derived from Ni-Al-LDH supplies appropriate acid-base sites for the aldol condensation, contributing to the high butanol selectivity. In addition, catalysts with strong reducibility (i.e., Cu/NiO) may be easily deconstructed during catalysis, leading to fast deactivation of the catalysts in the Guerbet coupling process.
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Affiliation(s)
- Yan Xiao
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, China; (Y.X.); (N.Z.); (J.L.)
| | - Nannan Zhan
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, China; (Y.X.); (N.Z.); (J.L.)
| | - Jie Li
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, China; (Y.X.); (N.Z.); (J.L.)
| | - Yuan Tan
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, China; (Y.X.); (N.Z.); (J.L.)
| | - Yunjie Ding
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Gengwen Road, Hangzhou 311231, China; (Y.X.); (N.Z.); (J.L.)
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- The State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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Yi X, Xiao Y, Xia C, Liu F, Liu Y, Hui Y, Yu X, Qin Y, Chen W, Liu Z, Song L, Zheng A. Adsorbate-driven dynamic active sites in stannosilicate zeolites. FUNDAMENTAL RESEARCH 2023. [DOI: 10.1016/j.fmre.2022.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Yang W, Duk Kim K, O'Dell LA, Wang L, Xu H, Ruan M, Wang W, Ryoo R, Jiang Y, Huang J. Brønsted acid sites formation through penta-coordinated aluminum species on alumina-boria for phenylglyoxal conversion. J Catal 2022. [DOI: 10.1016/j.jcat.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Wang Z, Jiang Y, Yang W, Li A, Hunger M, Baiker A, Huang J. Tailoring single site VO4 on flame-made V/Al2O3 catalysts for selective oxidation of n-butane. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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On the design of mesostructured acidic catalysts for the one-pot dimethyl ether production from CO2. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Hydrolytic vs. Nonhydrolytic Sol-Gel in Preparation of Mixed Oxide Silica-Alumina Catalysts for Esterification. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082534. [PMID: 35458732 PMCID: PMC9029862 DOI: 10.3390/molecules27082534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 11/17/2022]
Abstract
The development of green and sustainable materials for use as heterogeneous catalysts is a growing area of research in chemistry. In this paper, mesoporous SiO2-Al2O3 mixed oxide catalysts with different Si/Al ratios were prepared via hydrolytic (HSG) and nonhydrolytic sol-gel (NHSG) processes. The HSG route was explored in acidic and basic media, while NHSG was investigated in the presence of diisopropylether as an oxygen donor. The obtained materials were characterized using EDX, N2-physisorption, powder XRD, 29Si, 27Al MAS-NMR, and NH3-TPD. This approach offered good control of composition and the Si/Al ratio was found to influence both the texture and the acidity of the mesoporous materials. According to 27Al and 29Si MAS NMR analyses, silicon and aluminum were more regularly distributed in NHSG samples that were also more acidic. Silica–alumina catalysts prepared via NHSG were more active in esterification of acetic acid with n-BuOH.
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Zhang Y, Wu Y, Li H, Chen J, Lei D, Wang C. A dual-function liquid electrolyte additive for high-energy non-aqueous lithium metal batteries. Nat Commun 2022; 13:1297. [PMID: 35277497 PMCID: PMC8917126 DOI: 10.1038/s41467-022-28959-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 02/16/2022] [Indexed: 11/10/2022] Open
Abstract
Engineering the formulation of non-aqueous liquid electrolytes is a viable strategy to produce high-energy lithium metal batteries. However, when the lithium metal anode is combined with a Ni-rich layered cathode, the (electro)chemical stability of both electrodes could be compromised. To circumvent this issue, we report a combination of aluminum ethoxide (0.4 wt.%) and fluoroethylene carbonate (5 vol.%) as additives in a conventional LiPF6-containing carbonate-based electrolyte solution. This electrolyte formulation enables the formation of mechanically robust and ionically conductive interphases on both electrodes’ surfaces. In particular, the alumina formed at the interphases prevents the formation of dendritic structures on the lithium metal anode and mitigate the stress-induced cracking and phase transformation in the Ni-rich layered cathode. By coupling a thin (i.e., about 40 μm) lithium metal anode with a high-loading (i.e., 21.5 mg cm−2) LiNi0.8Co0.1Mn0.1O2-based cathode in coin cell configuration and lean electrolyte conditions, the engineered electrolyte allows a specific discharge capacity retention of 80.3% after 130 cycles at 60 mA g−1 and 30 °C which results in calculated specific cell energy of about 350 Wh kg−1. Lithium metal batteries suffer from poor (electro)chemical stability of the electrodes during prolonged cycling. Here, the authors report a dual function liquid electrolyte additive to form protective interphases on both electrodes to produce lab-scale high energy lithium metal batteries.
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Yue C, Gu L, Zhang Z, Wei X, Yang H. Nickel- and Cobalt-based Heterogeneous Catalytic Systems for Selective Primary Amination of Alcohol with Ammonia. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Wang Z, Jiang Y, Baiker A, Hunger M, Huang J. Promoting Aromatic C-H Activation through Reactive Brønsted Acid-Base Pairs on Penta-Coordinated Al-Enriched Amorphous Silica-Alumina. J Phys Chem Lett 2022; 13:486-491. [PMID: 35001618 DOI: 10.1021/acs.jpclett.1c03489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The surface acidity and local coordination environment of zeolites and amorphous silica-aluminas (ASAs) can promote acid-catalyzed C-H activation in many important hydrocarbon conversion reactions. Acid sites generated by penta-coordinated Al species (AlV) can lead to enhanced acidity and changes in the surface coordination. We evaluated the potential of flame-derived ASAs with enriched AlV for C-H activation using hydrogen/deuterium (H/D) exchange with benzene-d6. With increasing Al content of ASAs, the exchange rate increased, whereas the activation energy (Ea) slightly decreased due to the enhanced Brønsted acidity. The ASAs exhibited significantly higher exchange rates and lower Ea values than the sol-gel-derived ASAs and zeolite H-ZSM-5. The superior activity is attributed to the fact that more oxygen coordinated with AlV species on flame-made ASAs, which can act as acceptors for D+, enhancing the deuterium displacement. These findings could offer a valuable alternative strategy for tailoring high-performance solid acids to promote hydrocarbon conversion reactions.
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Affiliation(s)
- Zichun Wang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yijiao Jiang
- ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Alfons Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, HCI, CH-8093 Zürich, Switzerland
| | - Michael Hunger
- Institute of Chemical Technology, University of Stuttgart, D-70550 Stuttgart, Germany
| | - Jun Huang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
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Facile and cost-effective synthesis of acidity-enhanced amorphous silica-alumina for high-performance isomerization. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Castro-Fernández P, Mance D, Liu C, Moroz IB, Abdala PM, Pidko EA, Copéret C, Fedorov A, Müller CR. Propane Dehydrogenation on Ga 2O 3-Based Catalysts: Contrasting Performance with Coordination Environment and Acidity of Surface Sites. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05009] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pedro Castro-Fernández
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH-8092 Zurich, Switzerland
| | - Deni Mance
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Chong Liu
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Ilia B. Moroz
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Paula M. Abdala
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH-8092 Zurich, Switzerland
| | - Evgeny A. Pidko
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Alexey Fedorov
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH-8092 Zurich, Switzerland
| | - Christoph R. Müller
- Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, CH-8092 Zurich, Switzerland
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