Article
Multidisciplinary Sciences
Sabah Karimi, Hemayat Shekaari
Summary: This study investigates an extraction method using acidic deep eutectic solvent-based aqueous two-phase system (ATPS) for the extraction of 5-hydroxymethylfurfural (5-HMF) from aqueous solutions. The study finds that this method has a high extraction efficiency in a single-step extraction.
SCIENTIFIC REPORTS
(2022)
Review
Chemistry, Multidisciplinary
Giulia Fiorani, Alvise Perosa, Maurizio Selva
Summary: This review provides a comprehensive analysis of the reactions and applications of various organic carbonates and enol esters for the functionalization and upgrading of renewable compounds. Five sections cover the synthetic methods of organic carbonates, their reactions as alkylating, carboxylating, and acylating agents, and their use as solvents. The review also discusses the pros and cons of different methods and suggests areas for future research and analysis.
Article
Engineering, Chemical
Yangyang Wang, Shuwen Chen, Ronghao Liu, Lixin Zhang, Wenfeng Xue, Yanzhao Yang
Summary: This study developed a phase change temperature-controlled system for the extraction and separation of precious metals from secondary resources using an efficient ionic liquid. The UCST-type ionic liquid showed outstanding selectivity and temperature-controlled phase transition. The extraction behavior of the ionic liquid was optimized by adjusting experimental parameters. The study also revealed the extraction mechanism of anion exchange for the precious metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jocasta Avila, Chiara Corsini, Cintia M. Correa, Martin Rosenthal, Agilio Padua, Margarida Costa Gomes
Summary: This Perspective highlights the pathways to prepare porous ionic liquids using easily accessible materials for reduced environmental impact. The study demonstrates that suspensions of porous solids are stable in eutectic mixtures, which indicates their potential in preparing porous ionic liquids. Porous ionic liquids maintain the wide electrochemical window observed in their precursor pure ionic liquids, making them suitable for green electrochemical reactions, especially those involving gases with enhanced solubility in the porous suspensions. Furthermore, their capacity as gas-rich media suggests potential sustainable biomedical and pharmaceutical applications, provided that non-toxic, biocompatible ionic liquids and porous solids are utilized.
Review
Chemistry, Physical
Samahe Sadjadi
Summary: Ionic liquids are versatile tools for designing efficient and environmentally friendly synthetic protocols, serving as both catalysts and green solvents. They can be immobilized on magnetic supports for easy recovery and recycling, allowing for efficient catalytic activity and magnetic recovery.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Chia-Feng Tsai, I-Jyh Wen
Summary: This study investigates the thermal stability and hazards of ionic liquids at high temperatures. By measuring the thermogravimetric data of a frequently used IL, 1-butyl-3-methylimidazolium nitrate ([Bmmim]NO3), a numerical model is established to evaluate the thermal hazards under different conditions. The results show that [Bmmim]NO3 has a shorter duration for maximum reaction rate at high temperatures, and the temperature changes of the runaway reaction are similar to previous studies.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Multidisciplinary
Min Wang, Qi Wang, Junzheng Wang, Ronghao Liu, Guanju Zhang, Yanzhao Yang
Summary: Two IL thermomorphic systems were designed for the recovery of Au(III) from acidic medium, and their cloud point order was proposed and confirmed through experimental measurements and quantum chemical calculations. The impacts of salt ions and acid on the thermomorphic phase behavior of the IL-H2O system were investigated. The dicationic IL [Suc][Tf2N](2) showed outstanding selectivity for Au(III) and maintained extraction efficiency after multiple cycling experiments, indicating it as a potential extractant for gold recovery.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Xiao Xu, Gilles Van Eygen, Cristhian Molina-Fernandez, Daria Nikolaeva, Ysaline Depasse, Sara Chergaoui, Yusak Hartanto, Bart Van der Bruggen, Joao A. P. Coutinho, Anita Buekenhoudt, Patricia Luis
Summary: This study investigates the use of task-specific ionic liquids (TSILs) in the form of supported ionic liquid membranes (SILMs) for the separation and purification of dimethyl carbonate (DMC) through pervaporation. The results show that SILMs exhibit higher selectivity at low temperatures and an increase in temperature negatively affects the permeance of DMC and methanol.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Maxi Hoffmann, Ciprian Iacob, Gina Kaysan, Mira Simmler, Hermann Nirschl, Gisela Guthausen, Manfred Wilhelm
Summary: This study investigated the charge transport, diffusion properties, and glassy dynamics of blends of imidazolium-based ionic liquid and its corresponding polymer using PFG-NMR and rheo-BDS techniques. The results showed that the mechanical properties and ionic conductivity of the polymer blend were higher compared to the monomer, indicating substantial modifications of the mechanical properties. However, the charge transport was not significantly affected by the blending of components.
Article
Chemistry, Physical
Yuxin Wu, Yuncheng Ding, Jianhong Xu, Yundong Wang, Kathryn Mumford, Geoffrey W. Stevens, Weiyang Fei
Summary: The study developed a continuous-flow microreaction system for the synthesis of propylene carbonate, and comprehensively evaluated the effects of reaction temperature, molar fraction of catalyst, operating pressure, residence time, molar ratio of CO2/PO, and recycling performance of catalyst on the overall performances. Under different reaction conditions, the flow patterns varied between slug flow and annular flow. The results showed that at 140 degrees C and 3.0 MPa with a residence time of 166 s, the yield of propylene carbonate (PC) can reach 99.7%, and the recycling performance of the designed system greatly conforms the future trend of green chemistry.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Chemistry, Physical
Entian Li, Yingping Li, Songling Liu, Pei Yao
Summary: This study evaluates the corrosion inhibition performance of three choline amino acid ionic liquids on mild steel in hydrochloric acid solution. It is found that choline phenylalanine ionic liquid exhibits the best corrosion prevention efficiency, supported by surface morphological characterization and molecular dynamics simulation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Vitaly V. Chaban, Nadezhda A. Andreeva, Franciele L. Bernard, Leonardo M. dos Santos, Sandra Einloft
Summary: Global warming caused by industrial emissions of greenhouse gases poses a serious threat to human existence. To mitigate irreversible climate changes, researchers are developing CO2 sorbents. Dialkyl carbonates (DACs) exhibit similar properties to CO2 and can be effective sorbents. Recent studies have shown the physical sorption capabilities of DACs for CO2, as well as their low-cost desorption process and recyclability. Furthermore, DACs with long alkyl chains have negligible volatilities and remain in a liquid state over a wide temperature range, making them potential candidates for CO2 scavengers with unique characteristics.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Multidisciplinary Sciences
Javad Saien, Mansoureh Bahiraei, Farnaz Jafari
Summary: A novel hydrophobic deep eutectic solvent was evaluated for the extraction of phenol from aqueous solutions, showing excellent extraction capability with high solute distribution coefficients and separation factors. Thermodynamic models NRTL and UNIQUAC were employed to reproduce the experimental data, showing satisfactory agreement with low root mean square deviations.
SCIENTIFIC REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Hongfei Ni, Yiwei Zhang, Chuhong Zong, Zhengbo Hou, Hang Song, Yong Chen, Xuesong Liu, Tengfei Xu, Yingjie Luo
Summary: In this study, new tropine-based functionalized acidic ionic liquids (FAILs) were synthesized and demonstrated excellent catalytic performance in the synthesis of aspirin. The ionic liquid [Trps][OTs] exhibited high yield and selectivity, proving its potential as an ideal green solvent for esterification reactions and a suitable substitute for traditional catalysts.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Xia Zhao, Zhi Wang, Xiujuan Qi, Siwei Song, Shi Huang, Kangcai Wang, Qinghua Zhang
Summary: Six new energetic complexes with good thermal stabilities and excellent specific impulses were synthesized and characterized in this study. They exhibited great potential as promoters for the development of green hypergolic bipropellants, showing high catalytic activity and short ignition delay time in hypergolic reactions. Their isostructural characteristics also made them ideal candidates for studying structure-performance relationships.
INORGANIC CHEMISTRY
(2021)
Article
Agricultural Engineering
Fan Wang, Chenglong Wen, Mohong Lu, Peng Zhang, Jie Zhu, Mingshi Li, Yuhua Shan, Chunshan Song
Summary: Mo2N@NC/SBA-15 catalysts with high stability and dispersion were prepared using MoCl5 and dicyandiamide as Mo and C/N sources, respectively. During the carbonization process under H2 at an elevated temperature, Mo2N was formed in situ while dicyandiamide was converted to N-doped carbon (NC). The presence of N-doped carbon species around Mo2N NPs inhibited the aggregation of Mo2N NPs, resulting in the generation of ultrafine Mo2N nanoparticles. Mo2N@NC/SBA-15 catalysts exhibited high hydro-deoxygenation activity and aromatic compound selectivity. The selectivity towards aromatic products reached 92% and guaiacol conversion reached 99% at 380 degrees C and 2 MPa.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Applied
Debjyoti Ray, Pengxian Ye, Jimmy C. Yu, Chunshan Song
Summary: The conversion of carbon dioxide into value-added products is important for mitigating the greenhouse effect and reducing the reliance on fossil fuels. Non-thermal plasma approach shows potential as a sustainable and efficient alternative to traditional thermocatalytic routes. The combination of a catalyst and non-thermal plasma has been found to improve the selectivity and conversion of CO2 into desired products.
Article
Engineering, Environmental
Jiaming Wu, Keyan Li, Siyu Yang, Chunshan Song, Xinwen Guo
Summary: In this study, a BiOBr/Bi2WO6 S-scheme heterojunction with intimate interfacial contact was synthesized by a one-step hydrothermal method. The nanoflower morphology and the concentration of surface oxygen vacancies (SOVs) were regulated to enhance CO2 capture ability and charge transfer efficiency. The heterojunction exhibited excellent photocatalytic CO2 reduction activity without sacrificial agent and cocatalyst, surpassing most reported photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Mengjiao Pei, Keyan Li, Xiangyang Li, Chunshan Song, Xinwen Guo
Summary: Iron phthalocyanine/carbon nitride (FePc/CN) hetero-junction nanosheets were prepared using calcination method and exhibited excellent activation of peroxydisulfate (PDS) for tetracycline (TC) degradation under visible light. The FePc/CN-6 heterojunction showed significant improvement in degradation rate compared to CN and FePc due to the synergistic effect of photocatalysis and PDS activation. The construction of intimate interface via pi-pi conjugation enhanced charge separation and transfer, resulting in enhanced PDS activation and photodegradation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jun Du, Hainan Shi, Jiaming Wu, Keyan Li, Chunshan Song, Xinwen Guo
Summary: This study presents an ingenious calcination strategy to introduce sulfur vacancies and enhance the interfacial interaction in a TiO2@ZnIn2S4 heterojunction, greatly improving the photocatalytic CO2 reduction activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Jiaxing Zhang, Ajuan Zhou, Kaivalya Gawande, Guanxing Li, Shujie Shang, Chengyi Dai, Wei Fan, Yu Han, Chunshan Song, Limin Ren, Anfeng Zhang, Xinwen Guo
Article
Materials Science, Multidisciplinary
Xiaoyu He, Jiaming Wu, Keyan Li, Min Liu, Hainan Shi, Jun Du, Chunshan Song, Xiang Wang, Xinwen Guo
Summary: A direct Z-scheme 2D/2D heterojunction of ZnIn2S4/Ti-BPDC was synthesized, providing more exposed active sites and a shorter charge transfer distance for enhanced photocatalytic performance.
SCIENCE CHINA-MATERIALS
(2023)
Article
Multidisciplinary Sciences
Mingrui Wang, Peng Wang, Guanghui Zhang, Zening Cheng, Mengmeng Zhang, Yulong Liu, Rongtan Li, Jie Zhu, Jianyang Wang, Kai Bian, Yi Liu, Fanshu Ding, Thomas P. Senftle, Xiaowa Nie, Qiang Fu, Chunshan Song, Xinwen Guo
Summary: In this study, an in situ synthesized K-Co2C catalyst was developed for CO2 hydrogenation, achieving a selectivity of 67.3% for C2+ hydrocarbons. Experimental and theoretical results showed that CoO transformed into Co2C, and the stability of Co2C depended on the reaction atmosphere and the K promoter. The formation of surface C* species was facilitated by the co-action of K promoter and H2O, while the adsorption of C* on CoO was enhanced by the K promoter. The addition of H2O extended the lifetime of K-Co2C from 35 hours to over 200 hours.
Article
Chemistry, Applied
Jing Yue, Junjie Li, Min Liu, Wen Liu, Xiujie Li, Sujuan Xie, Chunshan Song, Xinwen Guo, Xiangxue Zhu
Summary: In this study, high-silica MFI zeolite was successfully prepared using a low-temperature crystallization method and seed-directed and C2H5OH filling techniques. The synthetic gel was purified to exclude impurity phases, and well-crystallized ZSM-5 samples with controllable Si/Al ratios and uniform particle sizes were obtained. The obtained high-silica MFI zeolite exhibited superior catalytic stability compared to the conventional sample during methanol-to-propylene and n-butene cracking reactions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoyu He, Yujia Ding, Zhennan Huang, Min Liu, Miaofang Chi, Zili Wu, Carlo U. Segre, Chunshan Song, Xiang Wang, Xinwen Guo
Summary: A photocatalyst TiO2/Ti-BPDC-Pt with a self-grown TiO2/Ti-MOF heterojunction, selectively anchored high-density Pt single-atomic cocatalysts on Ti-BPDC, achieves photocatalytic hydrogen evolution. The intimate heterojunction efficiently separates electrons and holes in a direct Z-scheme, and Pt is selectively anchored on Ti-BPDC in the form of single atoms. The tailored TiO2/Ti-BPDC-Pt exhibits significantly enhanced activity compared to other TiO2- or MOF-based catalysts, showing the importance of the balance of two simultaneously exposed domains of heterojunctions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jiaxing Zhang, Ajuan Zhou, Kaivalya Gawande, Guanxing Li, Shujie Shang, Chengyi Dai, Wei Fan, Yu Han, Chunshan Song, Limin Ren, Anfeng Zhang, Xinwen Guo
Summary: ZSM-5 nanosheets show promise as catalysts for diffusion-controlled catalytic reactions. In the alkylation of benzene with methanol, nanosheets with a thickness of 30 nm exhibit higher benzene conversion, xylene selectivity, and methyl selectivity, as well as a longer lifetime and lower ethylbenzene selectivity compared to nanosheets with a thickness of 300 nm. This is attributed to the shorter straight channel length, larger specific surface area, and increased mesopore volume of the nanosheets, which enhance the diffusion of reactants and products and decrease coke formation.
Review
Chemistry, Multidisciplinary
Xiaoxing Wang, Chunshan Song
Summary: This article introduces a new design approach for adsorptive CO2 capture and separation, called molecular basket sorbents (MBS), which does not require solvent heating and water evaporation, resulting in significantly reduced energy consumption and carbon capture cost. The research shows that MBS has high CO2 adsorption capacity, selectivity, kinetics, and regenerability, outperforming traditional adsorbents.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Energy & Fuels
Jiaxing Zhang, Fei Yuan, Anfeng Zhang, Guanghui Zhang, Limin Ren, Chunshan Song, Xinwen Guo
Summary: This study developed a tandem catalyst Fe-Co/HZSM-5 for the direct conversion of CO2 into gasoline fuel. The use of HZSM-5 nanosheets with short diffusion channels and appropriate acid property improved the selectivity and yield of gasoline fuel, while preventing catalyst deactivation.
Article
Engineering, Chemical
Jie Zhu, Minchen Mu, Yi Liu, Miao Zhang, Guanghui Zhang, Zening Cheng, Ben Hang Yin, Alex C. K. Yip, Chunshan Song, Xinwen Guo
Summary: This work investigates the effect of potassium (K) promoter on the carburization and oxidation of iron-based catalysts during CO2 hydrogenation. The addition of K enhances CO2 adsorption, promotes the reaction with hydrogen, and accelerates the carburization of iron phases. In addition, K prevents the oxidation of Fe5C2 during CO2 hydrogenation. The optimized iron-based catalysts exhibit high catalytic activity for CO2 conversion to olefins and long-chain hydrocarbons.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Jiajie Wang, Xiaoxing Wang, Mohammad S. AlQahtani, Sean D. Knecht, Sven G. Bilen, Wei Chu, Chunshan Song
Summary: This study compared CO2 hydrogenation under thermal-catalytic and plasma-catalytic conditions. The results showed significant synergy between plasma and catalyst at low temperatures, leading to increased CO2 conversion. The plasma-catalytic reaction had lower activation energy and promoted CO2 activation.
CHEMICAL ENGINEERING JOURNAL
(2023)
