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Liu Z, Zhang J, Luo J, Guo Z, Jiang H, Li Z, Liu Y, Song Z, Liu R, Liu WD, Hu W, Chen Y. Approaching Ultimate Synthesis Reaction Rate of Ni-Rich Layered Cathodes for Lithium-Ion Batteries. NANO-MICRO LETTERS 2024; 16:210. [PMID: 38842604 DOI: 10.1007/s40820-024-01436-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024]
Abstract
Nickel-rich layered oxide LiNixCoyMnzO2 (NCM, x + y + z = 1) is the most promising cathode material for high-energy lithium-ion batteries. However, conventional synthesis methods are limited by the slow heating rate, sluggish reaction dynamics, high energy consumption, and long reaction time. To overcome these challenges, we first employed a high-temperature shock (HTS) strategy for fast synthesis of the NCM, and the approaching ultimate reaction rate of solid phase transition is deeply investigated for the first time. In the HTS process, ultrafast average reaction rate of phase transition from Ni0.6Co0.2Mn0.2(OH)2 to Li- containing oxides is 66.7 (% s-1), that is, taking only 1.5 s. An ultrahigh heating rate leads to fast reaction kinetics, which induces the rapid phase transition of NCM cathodes. The HTS-synthesized nickel-rich layered oxides perform good cycling performances (94% for NCM523, 94% for NCM622, and 80% for NCM811 after 200 cycles at 4.3 V). These findings might also assist to pave the way for preparing effectively Ni-rich layered oxides for lithium-ion batteries.
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Affiliation(s)
- Zhedong Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jingchao Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jiawei Luo
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Zhaoxin Guo
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Haoran Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Zekun Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Yuhang Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Zijing Song
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Rui Liu
- School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, People's Republic of China
| | - Wei-Di Liu
- Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Wenbin Hu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China.
| | - Yanan Chen
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China.
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2
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Dong Y, Feng N, Liu P, Wei Q, Peng X, Jiang F, Chen Y. Dual-Track Multifunctional Bimetallic Metal-Organic Frameworks for Antibiotic Enrichment and Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309075. [PMID: 38597772 DOI: 10.1002/smll.202309075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/28/2023] [Indexed: 04/11/2024]
Abstract
The improper use and overuse of antibiotics have led to significant burdens and detrimental effects on the environment, food supply, and human health. Herein, a magnetic solid-phase extraction program and an optical immunosensor based on bimetallic Ce/Zr-UiO 66 for the detection of antibiotics are developed. A magnetic Fe3O4@SiO2@Ce/Zr-UiO 66 metal-organic framework (MOF) is prepared to extract and enrich chloramphenicol from fish, wastewater, and urine samples, and a horseradish peroxidase (HRP)-Ce/Zr-UiO 66@bovine serum protein-chloramphenicol probe is used for the sensitive detection of chloramphenicol based on the dual-effect catalysis of Ce and HRP. In this manner, the application of Ce/Zr-UiO 66 in integrating sample pretreatment and antibiotic detection is systematically investigated and the associated mechanisms are explored. It is concluded that Ce/Zr-UiO 66 is a versatile dual-track material exhibiting high enrichment efficiency (6.37 mg g-1) and high sensitivity (limit of detection of 51.3 pg mL-1) for chloramphenicol detection and serving as a multifunctional MOF for safeguarding public health and hygiene.
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Affiliation(s)
- Yiming Dong
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Niu Feng
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Puyue Liu
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Qiaoling Wei
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Xuewen Peng
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Feng Jiang
- Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Food for State Market Regulation, Wuhan, Hubei, 430075, China
| | - Yiping Chen
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
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3
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Feng Z, Yu M, Xu R, Pu R, Nie H, Yan QL. Preparation and Reactivity of Core-Shell Al@CL-20 Composites Embedded with Graphene-Based Complexes as Catalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10228-10239. [PMID: 38693709 DOI: 10.1021/acs.langmuir.4c00597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Incomplete combustion of Al in solid propellants can be effectively resolved by coating of an oxidizer at the microscale. In this paper, Al@CL-20 composites with polydopamine as the interfacial layer were prepared using this strategy. The structure, heat of reaction, thermal decomposition properties, and combustion performances of these composites under the effects of graphene oxide (GO) and graphene-based carbohydrazide complexes (GO-CHZ-M, M = Co2+, Ni2+) have been comprehensively investigated. The experimental results show that the heat of reaction of Al@CL-20 is 6482 J g-1, which is 561 J g-1 higher than that of the corresponding mechanical mixture. The presence of GO-CHZ-Co can further increase the heat of reaction of Al@CL-20 to 6729 J g-1 with a decreased activation energy by about 54.8%. Under the synergistic effect of interfacial control and GO-CHZ-M, the ignition delay time of Al@CL-20-Co decreases from 5.1 to 4.2 ms. Besides, the D50 of the combustion condensed products (CCPs) decreased from 5.62 to 4.33 μm, indicating the combustion efficiency of Al is greatly improved.
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Affiliation(s)
- Zhiyuan Feng
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
| | - Minghui Yu
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
| | - Ruixuan Xu
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
| | - Rui Pu
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hongqi Nie
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qi-Long Yan
- National Key Laboratory of Solid Rocket Propulsion, Northwestern Polytechnical University, Xi'an 710072, China
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4
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Wu J, Wang D, Zhang Z, Ye C, Wang Z, Hu X. Mechanical activation induced treatment for the synergistic recovery of valuable elements from spent NdFeB magnets. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 178:76-84. [PMID: 38382349 DOI: 10.1016/j.wasman.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 12/17/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024]
Abstract
The efficient and sustainable recovery of rare earth resources from spent NdFeB magnets has received considerable and increasing attention. However, the currently prevalent NdFeB magnets recovery techniques focus only on the recovery for rare earth elements (REEs), some of which also recover cobalt (Co) or boron (B). Herein, a simple mechanochemical strategy was proposed to recover REE, Co, and B from spent NdFeB magnets by mixing the NdFeB magnets powder and FeCl3 6H2O through the grinding-roasting-water leaching technological route. The results indicated high leaching efficiencies of 98.94 % for REEs, 99.99 % for Co, and 93.36 % for B from the NdFeB magnets. Additionally, iron remains in the leaching residue as iron oxide (96.73 wt %), achieving the complete separation of REEs, Co, B, and Fe. This mechanochemical based technology offers a green and efficient recovery process, facilitating more effective synergistic recovery of valuable elements from spent NdFeB magnets.
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Affiliation(s)
- Jian Wu
- State Key Laboratory of Advanced Metallurgy, Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, PR China; CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Chinese Academy of Sciences, Beijing 100190, PR China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, PR China; China Rare Earth Group Co., Ltd., Ganzhou 341000, PR China
| | - Dong Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Chinese Academy of Sciences, Beijing 100190, PR China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, PR China
| | - Zhihan Zhang
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, PR China
| | - Chunlin Ye
- China Rare Earth Group Co., Ltd., Ganzhou 341000, PR China
| | - Zhi Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, PR China.
| | - Xiaojun Hu
- State Key Laboratory of Advanced Metallurgy, Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, PR China
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5
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Greil R, Chai J, Rudelstorfer G, Mitsche S, Lux S. Water as a Sustainable Leaching Agent for the Selective Leaching of Lithium from Spent Lithium-Ion Batteries. ACS OMEGA 2024; 9:7806-7816. [PMID: 38405475 PMCID: PMC10882684 DOI: 10.1021/acsomega.3c07405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/19/2024] [Accepted: 01/25/2024] [Indexed: 02/27/2024]
Abstract
The development of a sustainable recycling process for lithium from spent lithium-ion batteries is an essential step to reduce the environmental impact of batteries. So far, the industrial implementation of a recycling process for lithium has been hindered by low recycling efficiencies and impurities in the recycled material. The aim of this study is thus to develop an easy-to-implement recycling concept for the selective leaching of lithium from spent lithium-ion batteries with water as a sustainable leaching reagent. With this highly selective process, the quantity of chemicals used can be substantially decreased. The influence of the leaching temperature, the solid/liquid-ratio, the mixing rate, and the number of stages in multistage operation were investigated utilizing NCM-material. High leaching efficiencies and a high selectivity were achieved at moderate temperatures of 40 °C and a solid/liquid-ratio of 100 g L-1. In multistage operation, a selectivity for lithium higher than 98% was achieved with 57% leaching performance of lithium. XRD-measurements showed that lithium carbonate was quantitatively leached, while lithium metal oxides remained in the black mass. Finally, the leaching kinetics were determined, proving that the first leaching period is diffusion controlled and, in the second period, the leaching rate is rate controlling. This work confirms the concept of a green leaching process by which lithium can be recycled with a high degree of purity.
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Affiliation(s)
- Rafaela Greil
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, Graz 8010, Austria
| | - Joevy Chai
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, Graz 8010, Austria
- Chemical
Engineering Department, Universiti Teknologi
PETRONAS, Seri Iskandar 32610, Malaysia
| | - Georg Rudelstorfer
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, Graz 8010, Austria
| | - Stefan Mitsche
- Institute
for Electron Microscopy and Nanoanalysis and Center for Electron Microscopy, Graz University of Technology, NAWI Graz, Steyrergasse 17, Graz 8010, Austria
| | - Susanne Lux
- Institute
of Chemical Engineering and Environmental Technology, Graz University of Technology, NAWI Graz, Inffeldgasse 25C, Graz 8010, Austria
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6
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Ambach SJ, Pritzl RM, Bhat S, Farla R, Schnick W. Nitride Synthesis under High-Pressure, High-Temperature Conditions: Unprecedented In Situ Insight into the Reaction. Inorg Chem 2024; 63:3535-3543. [PMID: 38324917 DOI: 10.1021/acs.inorgchem.3c04433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
High-pressure, high-temperature (HP/HT) syntheses are essential for modern high-performance materials. Phosphorus nitride, nitridophosphate, and more generally nitride syntheses benefit greatly from HP/HT conditions. In this contribution, we present the first systematic in situ investigation of a nitridophosphate HP/HT synthesis using the reaction of zinc nitride Zn3N2 and phosphorus(V) nitride P3N5 to the nitride semiconductor Zn2PN3 as a case study. At a pressure of 8 GPa and temperatures up to 1300 °C, the reaction was monitored by energy-dispersive powder X-ray diffraction (ED-PXRD) in a large-volume press at beamline P61B at DESY. The experiments investigate the general behavior of the starting materials under extreme conditions and give insight into the reaction. During cold compression and subsequent heating, the starting materials remain crystalline above their ambient-pressure decomposition points, until a sufficient minimum temperature is reached and the reaction starts. The reaction proceeds via ion diffusion at grain boundaries with an exponential decay in the reaction rate. Raising the temperature above the minimum required value quickly completes the reaction and initiates single-crystal growth. After cooling and decompression, which did not influence the resulting product, the recovered sample was analyzed by energy-dispersive X-ray (EDX) spectroscopy.
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Affiliation(s)
- Sebastian J Ambach
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
| | - Reinhard M Pritzl
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
| | - Shrikant Bhat
- Deutsches Elektronen Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Robert Farla
- Deutsches Elektronen Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
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7
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Gao H, Zhao Y, Zhang X, Zhao B, Jia Z, Liu Y, Hu X, Zhu Y. Solid-solution MAX phase TiVAlC assisted with impurity for enhancing hydrogen storage performance of magnesium hydride. J Colloid Interface Sci 2023; 652:979-988. [PMID: 37639928 DOI: 10.1016/j.jcis.2023.08.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/07/2023] [Accepted: 08/19/2023] [Indexed: 08/31/2023]
Abstract
Although MXene catalysts etched from precursor MAX have greatly improved the hydrogen storage performance of magnesium hydride (MgH2), the use of dangerous and polluting etchers (such as hydrofluoric acid) and the direct removal of potentially catalytically active A-layer substances (such as Al) present certain limitations. Here, solid-solution MAX phase TiVAlC catalyst without etching treatment has been directly introduced into MgH2 system to improve the hydrogen storage performance. The optimal MgH2-10 wt% TiVAlC can release about 6.00 wt% hydrogen at 300 °C within 378 s and absorb about 4.82 wt% hydrogen at 175 °C within 900 s. After 50 isothermal hydrogen ab/desorption cycles, the excellent cyclic stability and capacity retention (6.4 wt%, 99.6%) can be found for MgH2-10 wt% TiVAlC. The superb catalytic activity of TiVAlC catalyst can be explained by abundant electron transfer at external interfaces with MgH2/Mg, which can be further enhanced by impurity phase Ti3AlC2 due to strong H affinity brought from abundant electron transfer at internal interfaces (Ti3AlC2/TiVAlC). The influence of impurity phase which is common in MAX phase on the overall activity of catalysts has been firstly studied here, providing a unique method for designing composite catalyst to improve hydrogen storage performance of MgH2.
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Affiliation(s)
- Haiguang Gao
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, PR China.
| | - Yingyan Zhao
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
| | - Xu Zhang
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
| | - Baozhou Zhao
- Institute of Biomedical Engineering and Health Sciences, School of Pharmacy & School of Medicine, Changzhou University, Changzhou 213164, PR China.
| | - Zhen Jia
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
| | - Yana Liu
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
| | - Xiaohui Hu
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
| | - Yunfeng Zhu
- College of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, PR China
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8
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Gao B, Jiang H, Zhang W, Peng M, Hu L, Mao L. Formation kinetics and reaction behavior of pentavalent chromium formed in the cement kiln co-processing of solid waste. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166976. [PMID: 37704153 DOI: 10.1016/j.scitotenv.2023.166976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/29/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
Cement kiln co-processing is becoming the main strategy to dispose of hazardous waste containing Cr. A newly-discovered pentavalent Cr compound, which was proved to be formed during cement kiln co-processing of solid waste, is partly responsible for the water-soluble Cr released from the cement. However, the formation characteristics and the solubility of Cr(V) are still unclear to date. In this study, the reaction kinetics and further redox reactions of Cr(V) at high temperature were examined, and its crystal structure and solubility were also explored. At the temperature range of 1000-1200 °C, the formation rate of Ca5(CrO4)3O0.5 reached over 90 % within 10 min, and then slowly increased to near 100 % from 10 min to 10 h. shows that Ca5(CrO4)3O0.5 is formed by interface reaction at an early period, and by diffusion at a later period. The kinetic analysis indicates that Ca5(CrO4)3O0.5 is initially formed through an interface reaction and subsequently through diffusion. Ca5(CrO4)3O0.5 was identified and assigned as hexagonal crystal group (P63/m). Approximately 0.55 g and 0.15 g of Ca5(CrO4)3O0.5 dissolve in neutral water at 100 °C and 50 °C, and the concentrations of Cr(V) in water reach 550 and 150 mg/L, respectively. Additionally, this study finds that at the temperature range of 400-700 °C Ca5(CrO4)3O0.5 can be oxidized into CaCrO4, and at the temperature higher than 1400 °C, it can be further converted into Ca3(CrO4)2 and reduced into CaCr2O4. This study gives a deep insight into Cr oxidation-reduction reaction during thermal treatment of solid waste. These insights provide a comprehensive understanding of Cr oxidation-reduction reactions during the thermal treatment of solid waste, offering valuable guidance for waste management strategies.
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Affiliation(s)
- Bingying Gao
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Haohao Jiang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Wenyi Zhang
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Mingguo Peng
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Linchao Hu
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Linqiang Mao
- School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China.
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9
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Liu J, Wang C, Hou X, Li H, Wang X, Hu W, Ge T, Zhang J, Zhu G, Xie H. Extraction of W, V, and As from spent SCR catalyst by alkali pressure leaching and the pressure leaching mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119107. [PMID: 37801947 DOI: 10.1016/j.jenvman.2023.119107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 07/05/2023] [Accepted: 08/30/2023] [Indexed: 10/08/2023]
Abstract
Spent selective catalytic reduction (SCR) catalysts are environmentally hazardous and resource-enriching. In this work, V, W, and As in a spent SCR catalyst was extracted by alkali pressure leaching. Results showed that the V, W, and As were loaded on the anatase TiO2 crystal grains as amorphous oxides. The optimum pressure leaching conditions were NaOH concentration of 20 wt%, reaction temperature of 180 °C, reaction time of 120 min, L/S of 10 mL/g, and stirring speed of 300 rpm. The leaching efficiency of W, V, and As reached 98.83%, 100%, and 100%, respectively. The experiment revealed the preferential leaching of V and As rather than W, and the leaching mechanisms of V, W, and As were studied through experiment and density functional theory (DFT). The leaching kinetics of W conformed to a variant of the shrinking core model and the leaching process of W is controlled by both chemical reactions and diffusion processes. During the leaching process, Na2Ti2O4(OH)2 product powder layer was generated, which affects the mass transfer of W. The destruction of the TiO2 skeleton in the spent SCR catalyst is essential for adequate W extraction, especially for the extraction of W embedded in the TiO2 lattice. The DFT simulation result indicated that the V and As loaded onto the TiO2 support are easier to absorb hydroxide ions rather than W, and the leaching reaction energy of V and As was lower than W, As, and V has leaching priority over the leaching of W. Furthermore, an anatase TiO2 photocatalyst with the {001} crystal surface exposed was successfully prepared from the alkali pressure leaching residue. This work provides theoretical support for the metal leaching and utilization of spent SCR catalysts via alkali pressure leaching.
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Affiliation(s)
- Jinlong Liu
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chenye Wang
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xinjuan Hou
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huiquan Li
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingrui Wang
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenbin Hu
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Te Ge
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 30 Puzhunan Road, Nanjing, 211816, China
| | - Jianbo Zhang
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ganyu Zhu
- CAS Key Laboratory of Green Process and Engineering, National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd. Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District, Hangzhou City, Zhejiang Province, 310003, P.R.O.C
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10
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Chau J, Altan S, Burggraeve A, Coppenolle H, Kifle YW, Prokopcova H, Van Daele T, Sterckx H. A Bayesian Approach to Kinetic Modeling of Accelerated Stability Studies and Shelf Life Determination. AAPS PharmSciTech 2023; 24:250. [PMID: 38036798 DOI: 10.1208/s12249-023-02695-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
Kinetic modeling of accelerated stability data serves an important purpose in the development of pharmaceutical products, providing support for shelf life claims and expediting the path to clinical implementation. In this context, a Bayesian kinetic modeling framework is considered, accommodating different types of nonlinear kinetics with temperature and humidity dependent rates of degradation and accounting for the humidity conditions within the packaging to predict the shelf life. In comparison to kinetic modeling based on nonlinear least-squares regression, the Bayesian approach allows for interpretable posterior inference, flexible error modeling and the opportunity to include prior information based on historical data or expert knowledge. While both frameworks perform comparably for high-quality data from well-designed studies, the Bayesian approach provides additional robustness when the data are sparse or of limited quality. This is illustrated by modeling accelerated stability data from two solid dosage forms and is further examined by means of artificial data subsets and simulated data.
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Affiliation(s)
| | - Stan Altan
- Statistics and Decision Sciences, Janssen Research, Raritan, New Jersey, USA
| | - Anneleen Burggraeve
- Chemical and Pharmaceutical Development & Supply, Janssen Research, Beerse, Belgium
| | - Hans Coppenolle
- Statistics and Decision Sciences, Janssen Research, Beerse, Belgium
| | | | - Hana Prokopcova
- Chemical and Pharmaceutical Development & Supply, Janssen Research, Beerse, Belgium
| | - Timothy Van Daele
- Chemical and Pharmaceutical Development & Supply, Janssen Research, Beerse, Belgium
| | - Hans Sterckx
- Chemical and Pharmaceutical Development & Supply, Janssen Research, Turnhoutseweg 30, 2340, Beerse, Belgium.
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11
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Hu D, Beauvais ML, Kamm GE, Mullens BG, Sanchez Monserrate BA, Vornholt SM, Chupas PJ, Chapman KW. Resolving Fast Relative Kinetics in Inorganic Solid-State Synthesis. J Am Chem Soc 2023. [PMID: 38019924 DOI: 10.1021/jacs.3c10916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Solid-state syntheses are generally regarded as being slow, limited by transport, and, as such, are often only stopped to check the products after many hours at high temperature. Here, using a custom-designed reactor to rapidly initiate solid-state syntheses, we are able to capture the earliest stages of a reaction using in situ X-ray scattering. For the reaction of TiO2 and Li2CO3 to form spinel lithium titanate (Li4Ti5O12)─an anode material for fast-charging applications─we capture two distinct kinetic regimes, including fast initial kinetics in the first seconds-minutes of the reaction that account for significant product formation. We use an Avrami model to compare the reaction at high temperatures (700-750 °C), which results in the rapid formation of Li4Ti5O12 within minutes, and lower temperatures (482 °C), consistent with conditions that might be chosen based on "Tamman's rule", a common heuristic. Our analysis reveals characteristic Avrami slopes (i.e., dimensionalities) for each step in the chemical transformation. We anticipate that the fast initial reaction kinetics found here are likely to be common in the synthesis of other materials used in battery electrodes, solid-state electrolytes, ion-conductive membranes, etc. where ion transport is a prerequisite for functionality.
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Affiliation(s)
- Danrui Hu
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Michelle L Beauvais
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Gabrielle E Kamm
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Bryce G Mullens
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
- School of Chemistry, University of Sydney, Sydney, New South Wales 2006, Australia
| | | | - Simon M Vornholt
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Peter J Chupas
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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12
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Xiao P, Zhang J, Li H, Mou H, Feng Z, Xie J. Pyrolysis Kinetics Analysis and Prediction for Carbon Fiber-Reinforced Epoxy Composites. Polymers (Basel) 2023; 15:4533. [PMID: 38231947 PMCID: PMC10708016 DOI: 10.3390/polym15234533] [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: 11/06/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
Carbon fiber-reinforced epoxy resin composites have poor high temperature resistance and are prone to thermal damage during service in the aerospace field. The purpose of this study was to evaluate the thermal decomposition (pyrolysis) characteristics of carbon fiber-reinforced epoxy composites and reasonably predict their thermal decomposition under arbitrary temperature conditions. The kinetic analysis was conducted on the thermal decomposition of carbon fiber-reinforced epoxy resin composites (USN15000/9A16/RC33, supplied by Weihai GuangWei Composites Co., Ltd. Weihai City, Shandong Province, China) under a nitrogen environment, and an improved model of pyrolysis prediction suitable for the arbitrary temperature program was developed in this work. The results showed that the carbon fiber-reinforced epoxy composites begin to degrade at about 500 K, and the peak value of the weight loss rate at the respective heating rate appears in the range of 650 K to 750 K. A single-step reaction can characterize the thermal decomposition of carbon fiber-reinforced epoxy composites in a nitrogen atmosphere, and a wide variety of isoconversional approaches can be used for the calculation of the kinetic parameters. The proposed model of pyrolysis prediction can avoid numerous limitations of temperature integration, and it shows good prediction accuracy by reducing the temperature rise between sampling points. This study provides a reference for the kinetic analysis and pyrolysis prediction of carbon fiber-reinforced epoxy composites.
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Affiliation(s)
| | | | | | | | | | - Jiang Xie
- College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China; (P.X.); (J.Z.); (H.L.); (H.M.); (Z.F.)
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13
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Sakanaka Y, Hiraide S, Sugawara I, Uematsu H, Kawaguchi S, Miyahara MT, Watanabe S. Generalised analytical method unravels framework-dependent kinetics of adsorption-induced structural transition in flexible metal-organic frameworks. Nat Commun 2023; 14:6862. [PMID: 37938232 PMCID: PMC10632496 DOI: 10.1038/s41467-023-42448-3] [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: 06/19/2023] [Accepted: 10/10/2023] [Indexed: 11/09/2023] Open
Abstract
Flexible metal-organic frameworks (MOFs) exhibiting adsorption-induced structural transition can revolutionise adsorption separation processes, including CO2 separation, which has become increasingly important in recent years. However, the kinetics of this structural transition remains poorly understood despite being crucial to process design. Here, the CO2-induced gate opening of ELM-11 ([Cu(BF4)2(4,4'-bipyridine)2]n) is investigated by time-resolved in situ X-ray powder diffraction, and a theoretical kinetic model of this process is developed to gain atomistic insight into the transition dynamics. The thus-developed model consists of the differential pressure from the gate opening (indicating the ease of structural transition) and reaction model terms (indicating the transition propagation within the crystal). The reaction model of ELM-11 is an autocatalytic reaction with two pathways for CO2 penetration of the framework. Moreover, gas adsorption analyses of two other flexible MOFs with different flexibilities indicate that the kinetics of the adsorption-induced structural transition is highly dependent on framework structure.
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Affiliation(s)
- Yuta Sakanaka
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Shotaro Hiraide
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan.
| | - Iori Sugawara
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Hajime Uematsu
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
| | - Minoru T Miyahara
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Satoshi Watanabe
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan.
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14
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Boucenna Y, Layachi A, Cherfia A, Laoutid F, Satha H. Non-Isothermal Crystallization Kinetics and Activation Energy for Crystal Growth of Polyamide 66/Short Glass Fiber/Carbon Black Composites. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7073. [PMID: 38005003 PMCID: PMC10672216 DOI: 10.3390/ma16227073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023]
Abstract
This study presents the effect of the addition of 0.4 wt.% carbon black (CB) to polyamide 66 (PA66) containing 30 wt.% short glass fibers (GFs) on the behavior of composite thermal crystallization. Composites were studied by differential scanning calorimetry analysis (DSC) at different cooling rates using wide-angle X-ray scattering (WAXS) and scanning electron microscopy (SEM). This thermal crystallization study highlights the nucleation effect of GFs that promote PA66 crystallization by significantly increasing crystallization kinetics and rates. The activation energies (Eas) calculated by model-free (FWO; KAS) and model-fitting (Kissinger method and C-R method) approaches showed that the combination of both GF and CB decreases the activation energy with respect to neat PA66, meaning that the presence of both additives facilitates crystallization. The Coats-Redfern and Criado methods showed that the crystallization of neat PA66 and related composites follows the second-order reaction, i.e., the decelerated reaction, evidencing compatibility between GFs and the matrix.
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Affiliation(s)
- Yasser Boucenna
- Mechanics Laboratory, Frères Mentouri University Constantine 1, Constantine 25000, Algeria; (Y.B.); (A.C.)
| | - Abdelheq Layachi
- Institut des Sciences et des Techniques Appliquées (ISTA), Frères Mentouri University Constantine 1, Constantine 25000, Algeria
- Laboratory of Silicates, Polymers and Nanocomposites, University 8 Mai 1945, Guelma 24000, Algeria;
| | - Abdelhakim Cherfia
- Mechanics Laboratory, Frères Mentouri University Constantine 1, Constantine 25000, Algeria; (Y.B.); (A.C.)
| | - Fouad Laoutid
- Laboratory of Polymeric & Composite Materials, Materia Nova Research Center, 3 Avenue Nicolas Copernic, B-7000 Mons, Belgium
| | - Hamid Satha
- Laboratory of Silicates, Polymers and Nanocomposites, University 8 Mai 1945, Guelma 24000, Algeria;
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15
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Mann JE, Gao R, London SS, Swift JA. Desolvation Processes in Channel Solvates of Niclosamide. Mol Pharm 2023; 20:5554-5562. [PMID: 37850910 PMCID: PMC10630950 DOI: 10.1021/acs.molpharmaceut.3c00481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 10/19/2023]
Abstract
The antiparasitic drug niclosamide (NCL) is notable for its ability to crystallize in multiple 1:1 channel solvate forms, none of which are isostructural. Here, using a combination of time-resolved synchrotron powder X-ray diffraction and thermogravimetry, the process-induced desolvation mechanisms of methanol and acetonitrile solvates are investigated. Structural changes in both solvates follow a complicated molecular-level trajectory characterized by a sudden shift in lattice parameters several degrees below the temperature where the desolvated phase first appears. Model fitting of kinetic data obtained under isothermal heating conditions suggests that the desolvation is rate-limited by the nucleation of the solvent-free product. The desolvation pathways identified in these systems stand in contrast to previous investigations of the NCL channel hydrate, where water loss by diffusion initially yields an anhydrous isomorph that converts to the thermodynamic polymorph at significantly higher temperatures. Taking the view that each solvate lattice is a unique "pre-organized" precursor, a comparison of the pathways from different starting topologies to the same final product provides the opportunity to reevaluate assumptions of how various factors (e.g., solvent binding strength, density) influence solid-state desolvation processes.
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Affiliation(s)
- Jen E. Mann
- Department
of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United
States
| | - Renee Gao
- Department
of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United
States
| | - Shae S. London
- Department
of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United
States
| | - Jennifer A. Swift
- Department
of Chemistry, Georgetown University, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United
States
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16
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Qu B, Liu C, Wang Y, Li A, Qu Y, Zhang YS, Ji G. Fast pyrolysis kinetics of waste tires and its products studied by a wireless-powered thermo-balance. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132494. [PMID: 37683345 DOI: 10.1016/j.jhazmat.2023.132494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023]
Abstract
Fast pyrolysis is commonly used in industrial reactors to convert waste tires into fine chemicals and fuels. However, current thermogravimetric analyzers are facing limitations that prevent the acquisition of kinetic information. To better understand the reaction kinetics, we designed a novel thermo-balance device that was capable of in-situ weight measurement during rapid heating. The results showed that the reaction rate substantially increased, with significant reductions in reaction time and apparent activation energy compared to slow pyrolysis. The change of reaction mechanism from the reaction order model to the nucleation and growth model was responsible for the increase in the degradation rate. Fast pyrolysis led to the generation of more trimers of isoprene as primary pyrolytic volatiles, which we further supported through density functional theory calculations. The findings suggested that fast pyrolysis has a higher chance of overcoming the high energy barrier to form trimers of isoprene. This comprehensive and in-depth understanding of fast pyrolysis kinetics and product distribution could reveal a more realistic process of waste pyrolysis, which benefited the industry.
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Affiliation(s)
- Boyu Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China
| | - Chuanqun Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China
| | - Yinxiang Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China
| | - Aimin Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China
| | - Yi Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China
| | - Ye Shui Zhang
- School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK.
| | - Guozhao Ji
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China.
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17
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Nath B, Chen G, Bowtell L, Graham E. Kinetic mechanism of wheat straw pellets combustion process with a thermogravimetric analyser. Heliyon 2023; 9:e20602. [PMID: 37822613 PMCID: PMC10562926 DOI: 10.1016/j.heliyon.2023.e20602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/09/2023] [Accepted: 09/30/2023] [Indexed: 10/13/2023] Open
Abstract
In this study, the combustion characteristics of two wheat straw pellets (WSP) (T1: 100% wheat straw and T5: 70% wheat straw; 10% sawdust, 10% biochar; 10% bentonite clay) were performed at a heating rate 20 °C/min under a temperature from 25 to 1200 °C in air atmosphere. A thermogravimetric analyser (TGA) was used to investigate the activation energy (Eα), pre-exponential factor (A), and thermodynamic parameters. The DTG/TG profile of WSP was evaluated by model-free and model-based methods and found the model-based method was suitable for WSP thermal characterisation. The result demonstrates that the thermal decomposition occurred in four stages, comprising four consecutive reaction steps. A→B→C→D→E→F. Further, the model-based techniques were best fitted with kinetic reaction models like Cn (nth-order reaction with auto-catalyst), Fn (reaction of nth order), F2 (second-order phase interfacial reaction) and D3 (diffusion control). The average Eα for Fn, Cn, D3 and F2 models were 164.723, 189.782, 273.88, and 45.0 kJ/mol, respectively, for the T1 pellets. Alternatively, for T5 pellets, the A was 1.17E+2, 1.76E+16, 5.5E+23, and 1.1E+3 (1/s) for F2, D3, Cn and Fn models. Overall, the thermodynamic properties showed that WSP thermokinetic reactions were complex and multi-point equilibrium, indicating a potentiality as a bioenergy feedstock.
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Affiliation(s)
- Bidhan Nath
- School of Agriculture and Environmental Science, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
| | - Guangnan Chen
- School of Agriculture and Environmental Science, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
| | - Les Bowtell
- School of Engineering, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
| | - Elizabeth Graham
- Physical and Mechanical properties Laboratory, Central Analytical Research Facility, Queensland University of Technology, Brisbane, QLD, 4000, Australia
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18
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Luong NT, Veyret N, Boily JF. CO 2 Mineralization by MgO Nanocubes in Nanometric Water Films. ACS APPLIED MATERIALS & INTERFACES 2023; 15:45055-45063. [PMID: 37707796 PMCID: PMC10540135 DOI: 10.1021/acsami.3c10590] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/29/2023] [Indexed: 09/15/2023]
Abstract
Water films formed by the adhesion and condensation of air moisture on minerals can trigger the formation of secondary minerals of great importance to nature and technology. Magnesium carbonate growth on Mg-bearing minerals is not only of great interest for CO2 capture under enhanced weathering scenarios but is also a prime system for advancing key ideas on mineral formation under nanoconfinement. To help advance ideas on water film-mediated CO2 capture, we tracked the growth of amorphous magnesium carbonate (AMC) on MgO nanocubes exposed to moist CO2 gas. AMC was identified by its characteristic vibrational spectral signature and by its lack of long-range structure by X-ray diffraction. We find that AMC (MgCO3·2.3-2.5H2O) grew in sub-monolayer (ML) to 4 ML thick water films, with formation rates and yields scaling with humidity. AMC growth was however slowed down as AMC nanocoatings blocked water films access to the reactive MgO core. Films could however be partially dissolved by exposure to thicker water films, driving AMC growth for several more hours until nanocoatings blocked the reactions again. These findings shed new light on a potentially important bottleneck for the efficient mineralization of CO2 using MgO-bearing products. Notably, this study shows how variations in the air humidity affect CO2 capture by controlling water film coverages on reactive minerals. This process is also of great interest in the study of mineral growth in nanometrically thick water films.
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Affiliation(s)
- N. Tan Luong
- Department of Chemistry, Umeå
University, SE 901 87 Umeå, Sweden
| | - Noémie Veyret
- Department of Chemistry, Umeå
University, SE 901 87 Umeå, Sweden
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19
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Yokoyama Y, Kawaguchi S, Mizumaki M. Bayesian framework for analyzing adsorption processes observed via time-resolved X-ray diffraction. Sci Rep 2023; 13:14349. [PMID: 37699922 PMCID: PMC10497613 DOI: 10.1038/s41598-023-40573-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/13/2023] [Indexed: 09/14/2023] Open
Abstract
Clarifying dynamic processes of materials is an important research topic in materials science. Time-resolved X-ray diffraction is a powerful technique for probing dynamic processes. To understand the dynamics, it is essential to analyze time-series data using appropriate time-evolution models and accurate start times of dynamic processes. However, conventional analyses based on non-linear least-squares fitting have difficulty both evaluating time-evolution models and estimating start times. Here, we establish a Bayesian framework including time-evolution models. We investigate an adsorption process, which is a representative dynamic process, and extract information about the time-evolution model and adsorption start time. The information enables us to estimate adsorption properties such as rate constants more accurately, thus achieving more precise understanding of dynamic adsorption processes. Our framework is highly versatile, can be applied to other dynamic processes such as chemical reactions, and is expected to be utilized in various areas of materials science.
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Affiliation(s)
- Yuichi Yokoyama
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Masaichiro Mizumaki
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan.
- Faculty of Science, Kumamoto University, Kurokami, Kumamoto, 860-8555, Japan.
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20
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Li Y, Zhou S, Li J, Sun Z, Pang W. Study on Pyrolysis Kinetics, Behavior, and Mechanism of Organic-Rich Tuffaceous Mudstones Based on Thermogravimetric Analysis. ACS OMEGA 2023; 8:31972-31983. [PMID: 37692255 PMCID: PMC10483655 DOI: 10.1021/acsomega.3c03787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/28/2023] [Indexed: 09/12/2023]
Abstract
Organic-rich tuffaceous mudstones are important oil and gas resources. The systematic study of the pyrolysis kinetics and characteristics can not only provide the theoretical basis for the rational development and efficient utilization of these rocks but also is an important complement to the theoretical research on the pyrolysis kinetics of organic-rich rocks. In this study, the pyrolysis kinetics, behavior, and mechanism of the organic-rich tuffaceous mudstone in the Junggar Basin were clarified by thermogravimetric analysis. The organic structure and mineral composition were identified by Rock-Eval, Fourier transform infrared (FTIR), and X-ray diffraction (XRD). The results indicated that the mudstone could be described as a type II kerogen with good hydrocarbon generation potential. The mudstone included up to 80.7% quartz, which is associated with Carboniferous volcanic activity. Four isoconversional methods were used to evaluate the activation energies. A novel and simplified method was proposed to separate the pyrolysis processes using the Coats-Redfern method based on the differences in reaction models and activation energies. The pyrolysis processes were divided into four stages, and the reaction models of each stage were preliminarily clarified. The reaction models were further modified by the accommodation function The results showed the kinetic parameters, and the reaction models of each stage were significantly different. Moreover, the obtained kinetic parameters and optimal reaction models can well characterize the pyrolysis processes and mechanism of the tuffaceous mudstone. The results of thermogravimetric-FTIR (TG-FTIR) indicated that the main pyrolysis hydrocarbon volatiles were methane, C2+ aliphatic hydrocarbons, and aromatics. And the types and yields of pyrolysis volatiles differed at each stage.
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Affiliation(s)
- Yaoyu Li
- Northwest
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key
Laboratory of Petroleum Resources, Lanzhou 730000, Gansu
Province, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Shixin Zhou
- Northwest
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key
Laboratory of Petroleum Resources, Lanzhou 730000, Gansu
Province, China
| | - Jing Li
- Northwest
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key
Laboratory of Petroleum Resources, Lanzhou 730000, Gansu
Province, China
| | - Zexiang Sun
- Northwest
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key
Laboratory of Petroleum Resources, Lanzhou 730000, Gansu
Province, China
| | - Wenjun Pang
- Northwest
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
- Key
Laboratory of Petroleum Resources, Lanzhou 730000, Gansu
Province, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
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21
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Iyer J, Morgan LM, Harrison P, Davis A, Ray A, Mitsche S, Hofer F, Saraf I, Paudel A. Applying Material Science Principles to Chemical Stability: Modelling Solid State Autoxidation in Mifepristone Containing Different Degrees of Crystal Disorder. J Pharm Sci 2023; 112:2463-2482. [PMID: 37031865 DOI: 10.1016/j.xphs.2023.03.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/11/2023]
Abstract
Ball-milling and harsh manufacturing processes often generate crystal disorder which have practical implications on the physical and chemical stabilities of solid drugs during subsequent storage, transport, and handling. The impact of the physical state of solid drugs, containing different degrees/levels of crystal disorder, on their autoxidative stability under storage has not been widely investigated. This study investigates the impact of differing degrees of crystal disorder on the autoxidation of Mifepristone (MFP) to develop a predictive (semi-empirical) stability model. Crystalline MFP was subjected to different durations of ambient ball milling, and the resulting disorder/ amorphous content was quantified using a partial least square (PLS) regression model based on Raman spectroscopy data. Samples of MFP milled to generate varying levels of disorder were subjected to a range of (accelerated) stability conditions, and periodically sampled to examine their recrystallization and degradation extents. Crystallinity was monitored by Raman spectroscopy, and the degradation was evaluated by liquid chromatography. The analyses of milled samples demonstrated a competition between recrystallization and degradation via autoxidation of MFP, to different extents depending on stability conditions/exposure time. The degradation kinetics were analyzed by accounting for the preceding amorphous content, and fitted with a diffusion model. An extended Arrhenius equation was used to predict the degradation of stored samples under long-term (25°C/60% RH) and accelerated (40°C/75% RH, 50°C/75% RH) stability conditions. This study highlights the utility of such a predictive stability model for identifying the autoxidative instability in non-crystalline/partially crystalline MFP, owing to the degradation of the amorphous phases. This study is particularly useful for identifying drug-product instability by leveraging the concept of material sciences.
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Affiliation(s)
- Jayant Iyer
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - Lucy M Morgan
- Pfizer Worldwide Research, Development and Medical, Sandwich, Kent, CT13 9NJ, UK
| | - Pamela Harrison
- Oral Product Development, Pharmaceutical Technology and Development, operations, AstraZeneca, Macclesfield SK10 2NA, UK
| | - Adrian Davis
- Pfizer Worldwide Research, Development and Medical, Sandwich, Kent, CT13 9NJ, UK
| | - Andrew Ray
- New Modalities & Parenteral Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield SK10 2NA, UK
| | - Stefan Mitsche
- FELMI ZFE-Austrian Center for Electron Microscopy and Nanoanalysis Graz University of Technology, Graz 8010, Austria
| | - Ferdinand Hofer
- FELMI ZFE-Austrian Center for Electron Microscopy and Nanoanalysis Graz University of Technology, Graz 8010, Austria
| | - Isha Saraf
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria; Graz University of Technology, Institute of Process and Particle Engineering, Graz 8010, Austria.
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22
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Wang W, Chen S, Pei C, Luo R, Sun J, Song H, Sun G, Wang X, Zhao ZJ, Gong J. Tandem propane dehydrogenation and surface oxidation catalysts for selective propylene synthesis. Science 2023; 381:886-890. [PMID: 37498988 DOI: 10.1126/science.adi3416] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/13/2023] [Indexed: 07/29/2023]
Abstract
Direct propane dehydrogenation (PDH) to propylene is a desirable commercial reaction but is highly endothermic and severely limited by thermodynamic equilibrium. Routes that oxidatively remove hydrogen as water have safety and cost challenges. We coupled chemical looping-selective hydrogen (H2) combustion and PDH with multifunctional ferric vanadate-vanadium oxide (FeVO4-VOx) redox catalysts. Well-dispersed VOx supported on aluminum oxide (Al2O3) provides dehydrogenation sites, and adjacent nanoscale FeVO4 acts as an oxygen carrier for subsequent H2 combustion. We achieved an integral performance of 81.3% propylene selectivity at 42.7% propane conversion at 550°C for 200 chemical looping cycles for the reoxidization of FeVO4. Based on catalytic experiments, spectroscopic characterization, and theory calculations, we propose a hydrogen spillover-mediated coupling mechanism. The hydrogen species generated at the VOx sites migrated to adjacent FeVO4 for combustion, which shifted PDH toward propylene. This mechanism is favored by the proximity between the dehydrogenation and combustion sites.
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Affiliation(s)
- Wei Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Sai Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Chunlei Pei
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Ran Luo
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jiachen Sun
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hongbo Song
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Guodong Sun
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xianhui Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Collaborative Innovation Center for Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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23
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Fleming M, Swift JA. Enhancement of Hydrate Stability through Substitutional Defects. CRYSTAL GROWTH & DESIGN 2023; 23:5860-5867. [PMID: 37547883 PMCID: PMC10401670 DOI: 10.1021/acs.cgd.3c00457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/10/2023] [Indexed: 08/08/2023]
Abstract
Cytosine monohydrate (CM) and anhydrate crystal forms reversibly interconvert under high temperatures or high humidity conditions. Here, we demonstrate through defect engineering the ability to expand the thermal stability range of CM through the targeted creation of quantifiable defects in low-level concentrations. Twelve different molecular dyes with a variety of core structures and charges were screened as potential dopants in CM. CM-dye phases prepared with Congo red (CR), Evans blue (EB), and Azocarmine G (AG) exhibited the highest inclusion levels (up to 1.1 wt %). In these doped isomorphous materials, each dye is presumed to substitute for 4-7 cytosine molecules within the low-rugosity (102) planes of the CM matrixes, thereby creating a quantifiable substitutional defect and an impediment to the cooperative molecular motions which enable the transformation to the anhydrate. Dehydration of materials with these engineered defects requires significantly higher temperatures and proceeds with slower kinetics compared to pure CM. The CM-dye phases also exhibit a reduction in the thermal expansion along key crystallographic axes and yield dehydration products with altered particle morphologies.
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24
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Liu C, Xu Y, Yuan H, Tian G, Qin X, Lou B, Liu X, Zhang L, Lu J. Solubility determination, dissolution properties and solid transformation of resmetirom (form A) in heptane and seven alcohols. RSC Adv 2023; 13:22172-22184. [PMID: 37520754 PMCID: PMC10372540 DOI: 10.1039/d3ra02521g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023] Open
Abstract
In this work, the solubility of resmetirom (form A) was initially measured in heptane and seven alcohol solvents by gravimetric methods. Then, the transformation temperature between form A and ethanol solvate was determined at 333.76 K. Subsequently, some commonly used models were applied to fit the solubility data, and it was found that the modified Apelblat equation and the Jouyban-Acree-van't Hoff (J-A-V) model achieved the highest correlation accuracy for those in mono-solvents and heptane + propanol, respectively. And the average relative deviation (ARD) values of models were less than 0.5%, indicating a good agreement with the experimental results. Additionally, through density functional theory calculation and the analysis of solvent parameters, it was observed that hydrogen-bonding played primary roles in the dissolution process of resmetirom. The multiple factors such as the polarity of solvent, active site interaction, the molecular size and free volume all affect the solubility of resmetirom. Furthermore, by comparing the experimental and simulated infrared spectra of form A and two alcohol solvates, five characteristic bands were selected for quantification. Partial least squares regression (PLSR), a multivariate statistical analysis method, was used to extract quantitative information. The quantitative analysis model was established based on specific wavelength intervals, which were associated with inter-molecular interactions. Combined with PLSR, a new high-precision quantitative method was established to study the solid transformation process between form A and solvates. From 303.15 to 323.15 K, the rate of transformation from form A to methanol solvate or ethanol solvate was decreased with increasing temperature, revealing that the transformation process was driven by the solubility difference between form A and solvates under the studied conditions. This research will definitely afford necessary solubility data and solvent selection for the design of the crystallization process of resmetirom (form A) in industry, and provide basic data for the production of resmetirom (form A) in the pharmaceutical industry.
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Affiliation(s)
- Chang Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Yue Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Haikuan Yuan
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Guangxin Tian
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Xiaolan Qin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Boxuan Lou
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Xijian Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Lijuan Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
| | - Jie Lu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 China +86 21 67791214
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25
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Guinet Y, Paccou L, Hédoux A. Low-Frequency Raman Spectroscopy: An Exceptional Tool for Exploring Metastability Driven States Induced by Dehydration. Pharmaceutics 2023; 15:1955. [PMID: 37514141 PMCID: PMC10383856 DOI: 10.3390/pharmaceutics15071955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The use of low-frequency Raman spectroscopy (LFRS; ω < 150 cm-1) is booming in the pharmaceutical industry. Specific processing of spectra is required to use the wealth of information contained in this spectral region. Spectra processing and the use of LFRS for analyzing phase transformations in molecular materials are detailed herein from investigations on the devitrification of ibuprofen. LFRS was used to analyze the dehydration mechanism of two hydrates (theophylline and caffeine) of the xanthine family. Two mechanisms of solid-state transformation in theophylline were determined depending on the relative humidity (RH) and temperature. At room temperature and 1% RH, dehydration is driven by the diffusion mechanism, while under high RH (>30%), kinetic laws are typical of nucleation and growth mechanism. By increasing the RH, various metastability driven crystalline forms were obtained mimicking successive intermediate states between hydrate form and anhydrous form achieved under high RH. In contrast, the dehydration kinetics of caffeine hydrate under various RH levels can be described by only one master curve corresponding to a nucleation mechanism. Various metastability driven states were achieved depending on the RH, which can be described as intermediate between forms I and II of anhydrous caffeine.
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Affiliation(s)
- Yannick Guinet
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
| | - Laurent Paccou
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
| | - Alain Hédoux
- UMR 8207-UMET-Unité Matériaux et Transformations, Univ. Lille, CNRS, INRAE, Centrale Lille, F-59000 Lille, France
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26
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Roger M, Artiglia L, Boucly A, Buttignol F, Agote-Arán M, van Bokhoven JA, Kröcher O, Ferri D. Improving time-resolution and sensitivity of in situ X-ray photoelectron spectroscopy of a powder catalyst by modulated excitation. Chem Sci 2023; 14:7482-7491. [PMID: 37449079 PMCID: PMC10337771 DOI: 10.1039/d3sc01274c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/29/2023] [Indexed: 07/18/2023] Open
Abstract
Ambient pressure X-ray photoelectron spectroscopy (APXPS) is a powerful tool to characterize the surface structure of heterogeneous catalysts in situ. In order to improve the time resolution and the signal-to-noise (S/N) ratio of photoemission spectra, we collected consecutive APXP spectra during the periodic perturbation of a powder Pd/Al2O3 catalyst away from its equilibrium state according to the modulated excitation approach (ME). Averaging of the spectra along the alternate pulses of O2 and CO improved the S/N ratio demonstrating that the time resolution of the measurement can be limited solely to the acquisition time of one spectrum. Through phase sensitive analysis of the averaged time-resolved spectra, the formation/consumption dynamics of three oxidic species, two metal species, adsorbed CO on Pd0 as well as Pdn+ (n > 2) was followed along the gas switches. Pdn+ and 2-fold surface PdO species were recognised as most reactive to the gas switches. Our approach demonstrates that phase sensitive detection of time-resolved XPS data allows following the dynamics of reactive species at the solid-gas interface under different reaction environments with unprecedented precision.
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Affiliation(s)
- M Roger
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - L Artiglia
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - A Boucly
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - F Buttignol
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - M Agote-Arán
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
| | - J A van Bokhoven
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich 8093 Zurich Switzerland
| | - O Kröcher
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
- École Polytechnique Fédérale de Lausanne (EPFL), Institute for Chemical Sciences and Engineering CH-1015 Lausanne Switzerland
| | - D Ferri
- Paul Scherrer Institut Forschungsstrasse 111, CH-5232 Villigen PSI Switzerland
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27
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Mann JE, Gao R, Swift JA. Dehydration of Niclosamide Monohydrate Polymorphs: Different Mechanistic Pathways to the Same Product. CRYSTAL GROWTH & DESIGN 2023; 23:5102-5111. [PMID: 38510268 PMCID: PMC10950297 DOI: 10.1021/acs.cgd.3c00322] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/15/2023] [Indexed: 03/22/2024]
Abstract
Many active pharmaceutical ingredients (APIs) can crystallize as hydrates or anhydrates, the relative stability of which depends on their internal structures as well as the external environment. Hydrates may dehydrate unexpectedly or intentionally, though the molecular-level mechanisms by which such transformations occur are difficult to predict a priori. Niclosamide is an anthelmintic drug on the World Health Organization's "List of Essential Medicines" that crystallizes in two monohydrate forms: HA and HB. Through complementary time-resolved synchrotron powder X-ray diffraction and thermogravimetric kinetic studies, we demonstrate that the two monohydrates dehydrate via distinctly different solid state pathways yet yield the same final anhydrate phase. Water loss from HA via diffusion yields an isomorphous desolvate intermediate which can rearrange to at least two different polymorphs, only one of which exhibits long-term stability. In contrast, dehydration of HB proceeds via a surface nucleation process where simultaneous water loss and product formation occur with no detectable crystalline intermediates. Comparative analysis of the two systems serves to highlight the complex relationship between lattice structure and solid state dehydration processes.
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Affiliation(s)
- Jen E. Mann
- Georgetown
University, Department of Chemistry, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United States
| | - Renee Gao
- Georgetown
University, Department of Chemistry, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United States
| | - Jennifer A. Swift
- Georgetown
University, Department of Chemistry, 37th and O Streets NW, Washington, District of Columbia 20057-1227, United States
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28
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Rekhtina M, Krödel M, Wu YH, Kierzkowska A, Donat F, Abdala PM, Müller CR. Deciphering the structural dynamics in molten salt-promoted MgO-based CO 2 sorbents and their role in the CO 2 uptake. SCIENCE ADVANCES 2023; 9:eadg5690. [PMID: 37379379 DOI: 10.1126/sciadv.adg5690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/23/2023] [Indexed: 06/30/2023]
Abstract
The development of effective CO2 sorbents is vital to achieving net-zero CO2 emission targets. MgO promoted with molten salts is an emerging class of CO2 sorbents. However, the structural features that govern their performance remain elusive. Using in situ time-resolved powder x-ray diffraction, we follow the structural dynamics of a model NaNO3-promoted, MgO-based CO2 sorbent. During the first few cycles of CO2 capture and release, the sorbent deactivates owing to an increase in the sizes of the MgO crystallites, reducing in turn the abundance of available nucleation points, i.e., MgO surface defects, for MgCO3 growth. After the third cycle, the sorbent shows a continuous reactivation, which is linked to the in situ formation of Na2Mg(CO3)2 crystallites that act effectively as seeds for MgCO3 nucleation and growth. Na2Mg(CO3)2 forms due to the partial decomposition of NaNO3 during regeneration at T ≥ 450°C followed by carbonation in CO2.
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Affiliation(s)
- Margarita Rekhtina
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Maximilian Krödel
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Yi-Hsuan Wu
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Agnieszka Kierzkowska
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Felix Donat
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Paula M Abdala
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Christoph R Müller
- Laboratory of Energy Science and Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Leonhardstrasse 21, 8092 Zürich, Switzerland
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29
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López-Haro M, Gómez-Recio I, Pan H, Delgado JJ, Chen X, Cauqui MA, Pérez-Omil JA, Ruiz-González ML, Hernando M, Parras M, González-Calbet JM, Calvino JJ. Quantitative, Spectro-kinetic Analysis of Oxygen in Electron-Beam Sensitive, Multimetallic Oxide Nanostructures. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:900-912. [PMID: 37749688 DOI: 10.1093/micmic/ozad037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/18/2023] [Accepted: 03/04/2023] [Indexed: 09/27/2023]
Abstract
The oxygen stoichiometry of hollandite, KxMnO2-δ, nanorods has been accurately determined from a quantitative analysis of scanning-transmission electron microscopy (STEM) X-Ray Energy Dispersive Spectroscopy (XEDS) experiments carried out in chrono-spectroscopy mode. A methodology combining 3D reconstructions of high-angle annular dark field electron tomography experiments, using compressed-sensing algorithms, and quantification through the so-called ζ-factors method of XEDS spectra recorded on a high-sensitivity detector has been devised to determine the time evolution of the oxygen content of nanostructures of electron-beam sensitive oxides. Kinetic modeling of O-stoichiometry data provided K0.13MnO1.98 as overall composition for nanorods of the hollandite. The quantitative agreement, within a 1% mol error, observed with results obtained by macroscopic techniques (temperature-programmed reduction and neutron diffraction) validate the proposed methodology for the quantitative analysis, at the nanoscale, of light elements, as it is the case of oxygen, in the presence of heavy ones (K, Mn) in the highly compromised case of nanostructured materials which are prone to electron-beam reduction. Moreover, quantitative comparison of oxygen evolution data measured at macroscopic and nanoscopic levels allowed us to rationalize beam damage effects in structural terms and clarify the exact nature of the different steps involved in the reduction of these oxides with hydrogen.
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Affiliation(s)
- Miguel López-Haro
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - Isabel Gómez-Recio
- Departamento de Quı́ mica Inorgá nica, Facultad de Ciencias Quı́ micas, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, Madrid 28040, Spain
| | - Huiyan Pan
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - Juan J Delgado
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - Xiaowei Chen
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - Miguel A Cauqui
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - José A Pérez-Omil
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
| | - María L Ruiz-González
- Departamento de Quı́ mica Inorgá nica, Facultad de Ciencias Quı́ micas, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, Madrid 28040, Spain
| | - María Hernando
- Departamento de Quı́ mica Inorgá nica, Facultad de Ciencias Quı́ micas, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, Madrid 28040, Spain
| | - Marina Parras
- Departamento de Quı́ mica Inorgá nica, Facultad de Ciencias Quı́ micas, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, Madrid 28040, Spain
| | - José M González-Calbet
- Departamento de Quı́ mica Inorgá nica, Facultad de Ciencias Quı́ micas, Universidad Complutense de Madrid, Plaza de las Ciencias, Ciudad Universitaria, Madrid 28040, Spain
| | - José J Calvino
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Rio San Pedro, 11510-Puerto Real, Cádiz, Spain
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30
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Luong NT, Holmboe M, Boily JF. MgO nanocube hydroxylation by nanometric water films. NANOSCALE 2023. [PMID: 37194306 DOI: 10.1039/d2nr07140a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Hydrophilic nanosized minerals exposed to air moisture host thin water films that are key drivers of reactions of interest in nature and technology. Water films can trigger irreversible mineralogical transformations, and control chemical fluxes across networks of aggregated nanomaterials. Using X-ray diffraction, vibrational spectroscopy, electron microscopy, and (micro)gravimetry, we tracked water film-driven transformations of periclase (MgO) nanocubes to brucite (Mg(OH)2) nanosheets. We show that three monolayer-thick water films first triggered the nucleation-limited growth of brucite, and that water film loadings continuously increased as newly-formed brucite nanosheets captured air moisture. Small (8 nm-wide) nanocubes were completely converted to brucite under this regime while growth on larger (32 nm-wide) nanocubes transitioned to a diffusion-limited regime when (∼0.9 nm-thick) brucite nanocoatings began hampering the flux of reactive species. We also show that intra- and inter-particle microporosity hosted a hydration network that sustained GPa-level crystallization pressures, compressing interlayer brucite spacing during growth. This was prevalent in aggregated 8 nm wide nanocubes, which formed a maze-like network of slit-shaped pores. By resolving the impact of nanocube size and microporosity on reaction yields and crystallization pressures, this work provides new insight into the study of mineralogical transformations induced by nanometric water films. Our findings can be applied to structurally related minerals important to nature and technology, as well as to advance ideas on crystal growth under nanoconfinement.
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Affiliation(s)
- N Tan Luong
- Department of Chemistry, Umeå University, SE 901 87 Umeå, Sweden.
| | - Michael Holmboe
- Department of Chemistry, Umeå University, SE 901 87 Umeå, Sweden.
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31
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Xie L, Wang L, Zhou J, Ma H. Co-Pyrolysis for Pine Sawdust with Potassium Chloride: Insight into Interactions and Assisting Biochar Graphitization. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103667. [PMID: 37241296 DOI: 10.3390/ma16103667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
This effort aimed to explore the activation and catalytic graphitization mechanisms of non-toxic salts in converting biomass to biochar from the perspective of pyrolysis kinetics using renewable biomass as feedstock. Consequently, thermogravimetric analysis (TGA) was used to monitor the thermal behaviors of the pine sawdust (PS) and PS/KCl blends. The model-free integration methods and master plots were used to obtain the activation energy (E) values and reaction models, respectively. Further, the pre-exponential factor (A), enthalpy (ΔH), Gibbs free energy (ΔG), entropy (ΔS), and graphitization were evaluated. When the KCl content was above 50%, the presence of KCl decreased the resistance to biochar deposition. In addition, the differences in the dominant reaction mechanisms of the samples were not significant at low (α ≤ 0.5) and high (α ≥ 0.5) conversion rates. Interestingly, the lnA value showed a linearly positive correlation with the E values. The PS and PS/KCl blends possessed positive ΔG and ΔH values, and KCl was able to assist biochar graphitization. Encouragingly, the co-pyrolysis of the PS/KCl blends allows us to target-tune the yield of the three-phase product during biomass pyrolysis.
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Affiliation(s)
- Linen Xie
- Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Liangcai Wang
- Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianbin Zhou
- Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Huanhuan Ma
- Joint International Research Laboratory of Biomass Energy and Materials, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
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How do morphological changes of caffeine hydrate influence caking. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2022.111393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Netskina OV, Dmitruk KA, Mazina OI, Paletsky AA, Mukha SA, Prosvirin IP, Pochtar AA, Bulavchenko OA, Shmakov AG, Veselovskaya JV, Komova OV. CO 2 Methanation: Solvent-Free Synthesis of Nickel-Containing Catalysts from Complexes with Ethylenediamine. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2616. [PMID: 37048912 PMCID: PMC10095988 DOI: 10.3390/ma16072616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/17/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
CO2 methanation was studied in the presence of nickel catalysts obtained by the solid-state combustion method. Complexes with a varying number of ethylenediamine molecules in the coordination sphere of nickel were chosen as the precursors of the active component of the catalysts. Their synthesis was carried out without the use of solvents, which made it possible to avoid the stages of their separation from the solution and the utilization of waste liquids. The composition and structure of the synthesized complexes were confirmed by elemental analysis, IR spectroscopy, powder XRD and XPS methods. It was determined that their thermal decomposition in the combustion wave proceeds in multiple stages with the formation of NiO and Ni(OH)2, which are reduced to Ni0. Higher ethylenediamine content in the complex leads to a higher content of metal in the solid products of combustion. However, different ratios of oxidized and reduced forms of nickel do not affect the initial activation temperature of nickel catalysts in the presence of CO2. It was noted that, after activation, the sample obtained from [Ni(C2H8N2)2](NO3)2 exhibited the highest activity in CO2 methanation. Thus, this complex is a promising precursor for CO2 methanation catalysts, and its synthesis requires only a small amount of ethylenediamine.
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Affiliation(s)
- Olga V. Netskina
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Kirill A. Dmitruk
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., 630090 Novosibirsk, Russia
| | - Olga I. Mazina
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Alexander A. Paletsky
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Svetlana A. Mukha
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Igor P. Prosvirin
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Alena A. Pochtar
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Olga A. Bulavchenko
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Andrey G. Shmakov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia
| | - Janna V. Veselovskaya
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., 630090 Novosibirsk, Russia
| | - Oxana V. Komova
- Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
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Tang J, Meng X, Cheng X, Zhu Q, Yan D, Zhang Y, Lu X, Shi C, Liu X. Mechanistic Insights of Cosolvent Efficient Enhancement of PET Methanol Alcohololysis. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Jing Tang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiangshuai Meng
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China
| | - Xiujie Cheng
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Qingqing Zhu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Sino Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongxia Yan
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - YuJin Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xingmei Lu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical and Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyan Shi
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaomin Liu
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China
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Vozniuk O, Cacciaguerra T, Tanchoux N, Albonetti S, Stievano L, Millet JMM, Bion N, Di Renzo F, Cavani F. Control of the mechanism of chemical-looping of ethanol in non-stoichiometric ferrites by Cu-Mn substitution. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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36
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Iyer J, Barbosa M, Saraf I, Pinto JF, Paudel A. Mechanoactivation as a Tool to Assess the Autoxidation Propensity of Amorphous Drugs. Mol Pharm 2023; 20:1112-1128. [PMID: 36651656 DOI: 10.1021/acs.molpharmaceut.2c00841] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mechanoactivation has attracted considerable attention in the pharmaceutical sciences due to its ability to generate amorphous materials and solid-state synthetic products without the use of solvent. Although some studies have reported drug degradation during milling, no studies have systematically investigated the use of mechanoactivation in predicting drug degradation in the solid state. Thus, this work explores the autoxidation of drugs in the solid state by comilling amorphous mifepristone (MFP):polyvinylpyrrolidone vinyl acetate (PVPVA) and amorphous olanzapine (OLA):PVPVA. MFP was amorphized by ball milling and OLA by quench cooling techniques. Subsequently, comilling the amorphous drugs in the presence of a 10-fold weight ratio of PVPVA (the excipient containing reactive free radicals) was performed at several milling frequencies to identify the kinetics of mechano-autoxidation over milling durations. Overall, milling led to the degradation of up to 5% drug in the solid state. The autoxidation mechanism was confirmed by performing a stress study in the solution at 50 °C for 5 h, by using a 10 mM azo-bis(isobutyronitrile) (AIBN) as a stressing agent. By deconvoluting the effect of milling frequency and the energy on the extent and kinetics of milling-induced autoxidation of amorphous drugs, it was possible to fit an extended Arrhenius model that allowed extrapolation of mechanoactivated degradation rates (Km) to zero milling frequencies. Further, the autoxidation rates of drugs stored at high temperatures were observed to follow an Arrhenius behavior. A good degree of agreement was observed between the model predictions obtained by mechanoactivation (Km) to the reaction rates observed under accelerated temperatures. Additionally, the impact of adding an antioxidant (e.g., butylated hydroxytoluene) to the mixture during comilling was also examined. This study can be helpful in evaluating the stability of amorphous solids stored in accelerated (non-hermetic) conditions, in screening solid-state autoxidation propensity of drugs, and for the rational selection of antioxidants.
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Affiliation(s)
- Jayant Iyer
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - Matilde Barbosa
- iMed.ULisboa, Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa P-1649-003, Portugal
| | - Isha Saraf
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - João F Pinto
- iMed.ULisboa, Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa P-1649-003, Portugal
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria.,Graz University of Technology, Institute of Process and Particle Engineering, Graz 8010, Austria
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37
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Allenbaugh RJ, Shaw A. Kinetic analysis of the liquid-assisted grinding (LAG) mechanosynthesis of metal bipyridine complexes. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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38
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Hamidi N. Upcycling poly(vinyl chloride) waste tubes: Studies of thermal stability and kinetics of films made of waste polyvinylchloride tube at the initial steps of degradation. J Appl Polym Sci 2023. [DOI: 10.1002/app.53663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Nasrollah Hamidi
- Department of Biological and Physical Sciences South Carolina State University Orangeburg South Carolina USA
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39
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A novel approach for determination of nucleation rates and interfacial energy of metallic magnesium nanoclusters at high temperature using non-isothermal TGA models. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2022.118223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Thermal decomposition kinetics of deep eutectic solvent (DES) based on choline chloride and magnesium chloride hexahydrate: New details on the reaction mechanism and enthalpy-entropy compensation (EEC). J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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41
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Mishra A, Nanda S, Ranjan Parida M, Jena PK, Dwibedi SK, Manjari Samantaray S, Samantaray D, Mohanty MK, Dash M. A comparative study on pyrolysis kinetics and thermodynamic parameters of little millet and sunflower stems biomass using thermogravimetric analysis. BIORESOURCE TECHNOLOGY 2023; 367:128231. [PMID: 36332863 DOI: 10.1016/j.biortech.2022.128231] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Several biochemical and thermochemical routes including pyrolysis, liquefaction, combustion and gasification are used to convert biomass to several bioproducts and green fuels. The current investigation included two important biomass namely, little millet stem (LMS) and sunflower stem (SS), whose potentiality as useful feedstocks is largely unexplored. The presence of considerable level of cellulose accumulation (approx. 30 %), volatiles (approx. 67 %) and high heating value (approx. 14 MJ/kg) in both the biomass, inferred their potentiality to be used as feedstocks in the pyrolysis process. The estimate of activation energy for LMS was reported as 191.14 kJ/mol (FWO), 191.46 kJ/mol (KAS) whereas for SS, the activation energy was estimated as 166.52 kJ/mol (FWO) and 162.68 kJ/mol (KAS). The difference between change in enthalpy and activation energy was small (5 to 6 kJ/mol) for both the biomasses, indicating the feasibility of combustion process. From Z(α) analyses, the experimental curve was seen passing through different theoretical curves, indicating complex nature of pyrolysis process for both the biomass.
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Affiliation(s)
- Abinash Mishra
- College of Agriculture, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Spandan Nanda
- College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Manas Ranjan Parida
- College of Agricultural Engineering and Technology, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Pradip Kumar Jena
- College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Sanat Kumar Dwibedi
- College of Agriculture, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Saubhagya Manjari Samantaray
- College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Debiprasad Samantaray
- College of Basic Science and Humanities, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Mahendra Kumar Mohanty
- College of Agricultural Engineering and Technology, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India
| | - Manasi Dash
- College of Agriculture, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, India.
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42
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Dmitruk KA, Komova OV, Paletsky AA, Shmakov AG, Mukha SA, Butenko VR, Pochtar AA, Netskina OV. The Use of Hybrid Genetic Algorithm in the Kinetic Analysis of Thermal Decomposition of [Ni(C 2H 8N 2) 3](ClO 4) 2 with Overlapping Stages. MATERIALS (BASEL, SWITZERLAND) 2022; 16:90. [PMID: 36614426 PMCID: PMC9821161 DOI: 10.3390/ma16010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
This work describes the mathematical modeling of the thermal decomposition of the complex compound [Ni(En)3](ClO4)2 (En = C2H8N2 = ethylenediamine) in an inert atmosphere under non-isothermal conditions. This process is characterized by several simultaneous and intense stages: elimination of ethylenediamine from the nickel coordination sphere, decomposition of perchlorate anions, and explosive-like oxidation of free or bound ethylenediamine. These stages overlap and merge into a one step on the differential thermogravimetric curve. Typically, this curve is modeled as a one-stage process during kinetic analysis. In this paper, for the first time, the data from the dynamic mass-spectral thermal analysis and thermogravimetric analysis were modeled using the hybrid genetic algorithm, and the results were compared. A two-stage scheme of [Ni(En)3](ClO4)2 thermolysis was proposed and the kinetic parameters for each stage were obtained. It was shown that the decomposition of [Ni(En)3](ClO4)2 begins with the elimination of one molecule of ethylenediamine (stage A), then the perchlorate anions quickly decompose with the evolution of oxygen (stage B). We believe that the resulting ClO4-x- (x = 1-3), as stronger oxidizing agents, instantly start an explosive-like exothermic process of ethylenediamine oxidation (stage B).
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Affiliation(s)
- Kirill A. Dmitruk
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
| | - Oksana V. Komova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Siberian Branch of Russian Academy of Sciences, 17 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
| | - Alexander A. Paletsky
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., Novosibirsk 630090, Russia
| | - Andrey G. Shmakov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., Novosibirsk 630090, Russia
| | - Svetlana A. Mukha
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
| | - Vladislav R. Butenko
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
| | - Alena A. Pochtar
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
| | - Olga V. Netskina
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
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43
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Construction of a binary architecture of flower-like nickel phyllosilicate@zinc sulfide towards the robust, wear-resistant and thermal-stable epoxy nanocomposites. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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44
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Benhammada A, Trache D, Chelouche S. Catalytic effect investigation of α-Fe2O3 and α-Fe2O3-CMS nanocomposites on the thermal behavior of NC/DGEDN mixture: DSC measurements and kinetic modeling. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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45
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BaCoO3−δ perovskite-type oxygen carrier for chemical looping air separation, part Ⅰ: Determination of oxygen non-stoichiometry and cyclic stability of oxygen carrier. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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46
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Loder A, Santner S, Siebenhofer M, Böhm A, Lux S. Reaction kinetics of direct reduction of mineral iron carbonate with hydrogen: Determination of the kinetic triplet. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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47
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Mullaliu A, Hosseini SM, Conti P, Aquilanti G, Giorgetti M, Varzi A, Passerini S. Disclosing the Redox Pathway Behind the Excellent Performance of CuS in Solid-State Batteries. SMALL METHODS 2022; 6:e2200913. [PMID: 36333102 DOI: 10.1002/smtd.202200913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Copper sulfide has attracted increasing attention as conversion-type cathode material for, especially, solid-state lithium-based batteries. However, the reaction mechanism behind its extraordinary electroactivity is not well understood, and the various explanations given by the scientific community are diverging. Herein, the CuS reaction dynamics are highlighted by examining the occurring redox processes via a cutting-edge methodology combining X-ray absorption fine structure spectroscopy, and chemometrics to overcome X-ray diffraction limitations posed by the poor material's crystallinity. The mathematical approach rules out the formation of intermediates and clarifies the direct conversion of CuS to Cu in a two-electron process during discharge and reversible oxidation upon delithiation. Two distinct voltage regions are identified corresponding to Cu- as well as the S-redox mechanisms occurring in the material.
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Affiliation(s)
- Angelo Mullaliu
- Helmholtz Institute Ulm (HIU), 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), 76021, Karlsruhe, Germany
| | - Seyed Milad Hosseini
- Helmholtz Institute Ulm (HIU), 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), 76021, Karlsruhe, Germany
| | - Paolo Conti
- School of Science and Technology, Chemistry Division, University of Camerino, Chemistry Interdisciplinary Project Building Via Madonna delle Carceri, 62032, Camerino, Italy
| | | | - Marco Giorgetti
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, 40136, Bologna, Italy
| | - Alberto Varzi
- Helmholtz Institute Ulm (HIU), 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), 76021, Karlsruhe, Germany
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU), 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), 76021, Karlsruhe, Germany
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48
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Liu F, Wang T. Thermodynamics of the heterogeneous synthesis of polyoxymethylene dimethyl ethers from paraformaldehyde and dimethoxymethane in presence of methanol and water. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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49
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Qu X, Tang Y, Li M, Liu D, Gao S, Yin H. Mechanisms of the Ammonium Sulfate Roasting of Spent Lithium-Ion Batteries. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2200053. [PMID: 36532237 PMCID: PMC9749078 DOI: 10.1002/gch2.202200053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 09/08/2022] [Indexed: 06/17/2023]
Abstract
Ammonium sulfate ((NH4)2SO4) assisted roasting has been proven to be an effective way to convert spent lithium-ion battery cathodes to water-soluble salts. Herein, thermogravimetric (TG) experiments are performed to analyze the mechanism of the sulfation conversion process. First, the reaction activation energies of the sulfate-assisted roasting are 88.87 and 95.27 kJ mol-1, which are calculated by Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) methods, respectively. Then, nucleation and growth are determined and verified as the sulfation reaction model by the Šatava-Šesták method. Finally, sub-reactions of the sulfation process are investigated and reaction controlling mechanisms are determined by the contribution of sub-reaction. Based on the thermogravimetric analysis, the phase boundary reaction is found to dominate in the initial step of the roasting process (α < 0.6) while the nucleation reaction controlls the following step (α > 0.6), agreeing well with changing trend of activation energy. Overall, thermogravimetric analysis is a general way to study the mechanism of the various roasting processes.
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Affiliation(s)
- Xin Qu
- School of Resource and Environmental SciencesWuhan University299 Bayi Road, Wuchang DistrictWuhan430072P. R. China
| | - Yiqi Tang
- Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of EducationSchool of MetallurgyNortheastern UniversityShenyang110819P. R. China
| | - Mengting Li
- Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of EducationSchool of MetallurgyNortheastern UniversityShenyang110819P. R. China
| | - DongXu Liu
- Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of EducationSchool of MetallurgyNortheastern UniversityShenyang110819P. R. China
| | - Shuaibo Gao
- School of Resource and Environmental SciencesWuhan University299 Bayi Road, Wuchang DistrictWuhan430072P. R. China
| | - Huayi Yin
- School of Resource and Environmental SciencesWuhan University299 Bayi Road, Wuchang DistrictWuhan430072P. R. China
- Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of EducationSchool of MetallurgyNortheastern UniversityShenyang110819P. R. China
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50
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Reduction kinetics of SrFeO3−δ/CaO·MnO nanocomposite as effective oxygen carrier for chemical looping partial oxidation of methane. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2188-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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