Article
Engineering, Chemical
Kuan Shiong Khoo, Yen Mun Chong, Wen Sing Chang, Jie Min Yap, Su Chern Foo, Ianatul Khoiroh, Phei Li Lau, Kit Wayne Chew, Chien Wei Ooi, Pau Loke Show
Summary: CO2-based alkyl carbamate ILs were proposed as an alternative solvent for lutein extraction from Chlorella sorokiniana. Complete separation of lutein from ILs was achieved by distillation under mild conditions, and the recyclability of DPCARB was found to be satisfactory after multiple cycles of extraction. The potential of CO2-based alkyl carbamate ILs in lutein extraction is promising due to their recyclability, which helps reduce environmental impact and operating costs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Mark. N. Kobrak, Dmytro Nykypanchuk, Camiel H. C. Janssen
Summary: Mixtures of trihexylamine and cyclic carboxylic acids were used as solvents for extracting zinc salts from water. The choice of zinc salt anions represented a range of solvation properties, and their influence on extraction was investigated. Small-angle x-ray scattering was used to study the liquid structure. The results showed that extraction was strongly affected by the Hofmeister effect, but the local liquid structure was not sensitive to the solvation properties of the anions. Unlike similar studies, the strength of the Hofmeister effect did not change with the composition of the mixtures. (c) 2023 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Sergiy Rogalsky, Oksana Tarasyuk, Alina Vashchuk, Oleg Dzhuzha, Tetiana Cherniavska, Stanislav Makhno
Summary: This research developed low-cost proton-conducting electrolytes for fuel cells operating at high temperatures by preparing two room temperature protic ionic liquids (PILs), IM-DBP and IM-BEHP. The synthesized PILs were optimized using density functional theory and showed hydrogen bonding between the cation and anion. Both PILs exhibited low glass transition temperatures, high thermal degradation points, and viscosity that decreased with increasing temperature. The ionic conductivity of the PILs reached the desired level above 140 degrees C. The obtained results suggest that imidazolium dialkyl phosphates can be used as proton conducting electrolytes for medium temperature fuel cell applications.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Green & Sustainable Science & Technology
P. Y. S. Nakasu, T. C. Pin, J. P. Hallett, S. C. Rabelo, A. C. Costa
Summary: Protic ionic liquids (PILs) are efficient pretreatment agents for lignocellulosic biomass deconstruction to produce ethanol. Optimal conditions for pretreatment include 2 hours, 150 degrees Celsius, 15% solids loading, and 20% water content. The addition of hemicellulases during saccharification can improve hemicellulose yield, while the use of ethanol and other antisolvents does not increase sugar yields.
Article
Chemistry, Analytical
Wenjin Li, Yunchang Fan, Sheli Zhang, Jing Li, Lei Zhang, Hongwei Wu
Summary: The combination of ionic liquids (ILs) and microwave-assisted extraction (ILs-MAE) is a promising method for the efficient extraction of rosmarinic acid (RA) from Perilla seeds, showing high extraction efficiency and rapid extraction rate. The acidity of ILs and extraction temperature play important roles in the extraction process, and IL can be recycled without losing its extraction ability via back extraction with ethyl acetate.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Jingwen Li, Yanwen Guo, Junjun Tan, Bing Hu
Summary: A novel family of imidazole-based polyoxometalate dicationic ionic liquids catalysts were synthesized for efficient desulfurization of fuel oil, showing excellent desulfurization efficiency and recyclability. The possible mechanism of the ECODS process was proposed based on the catalytic performance under different conditions.
Article
Biochemistry & Molecular Biology
Mariana T. Donato, Jonas Deuermeier, Rogerio Colaco, Luis C. Branco, Benilde Saramago
Summary: The goal of this study was to develop new protic ionic liquids (PILs) as additives for lubrication of micro and nanoelectromechanical systems (MEMS and NEMS). Ten PILs with different combinations of cations such as [MIMH], [4-picH], [PyrH], [DBUH], and [TMGH], and anions such as [HSO4] and [MeSO3] were tested as additives in polyethylene glycol (PEG200) to lubricate steel/silicon and silicon/silicon contacts. The best performing additive was found to be [4-picH][HSO4], which formed a protective film on the silicon surface, resulting in a 15-fold reduction in wear compared to PEG200 alone.
Article
Materials Science, Paper & Wood
Sherif Elsayed, Michael Hummel, Daisuke Sawada, Chamseddine Guizani, Marja Rissanen, Herbert Sixta
Summary: Lyocell fibers have gained attention for their sustainability and excellent mechanical properties, produced using dry-jet wet spinning process. NMMO and superbase-based ILs are commonly used solvents, offering high-quality regenerated cellulose fibers.
Article
Green & Sustainable Science & Technology
Tao Zhang, Fan Huang, Lianzheng Zhang, Dongmei Xu, Yixin Ma, Bei Ji, Jun Gao, Yinglong Wang
Summary: This study used eco-friendly amine ionic liquids for the extraction of cresols and evaluated their toxicity. The results showed that the amine ionic liquids were nonharmful. The study also investigated the effects of stirring time, mixture ratio, extraction temperature, and initial content on the extraction efficiency. Quantum chemistry calculations revealed that hydrogen bonds were the major driving forces for cresol extraction. The reusability of the amine ionic liquids was also explored.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agricultural Engineering
Fatemeh Saadat Ghareh Bagh, Srimanta Ray, Rajesh Seth
Summary: A variety of protic ionic liquids were used to extract lignin from black liquor, with [Eth][Ac] showing the highest extraction efficiency. Optimization of extraction conditions can lead to improved lignin recovery. The experimental results confirmed the effectiveness of PILs for lignin extraction compared to traditional acidification-based methods.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Physical
E. Villarroel, F. Olea, C. Araya-Lopez, J. Gajardo, G. Merlet, R. Cabezas, J. Romero, E. Quijada-Maldonado
Summary: The factors that determine the extraction performance when using ionic liquids as diluents in the solvent extraction of Rhenium were studied. It was found that the extraction efficiency was lower when replacing traditional diluents with ionic liquids, mainly due to the dissociation of the ionic liquids and the poor solubility of the formed complexes in the diluent phase.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Saffron J. Bryant, Stuart J. Brown, Andrew Martin, Radhika Arunkumar, Rekha Raju, Aaron Elbourne, Gary Bryant, Calum J. Drummond, Tamar L. Greaves
Summary: The study found that protic ionic liquids have potential as effective cryoprotective agents, with ethylammonium acetate showing promising results and being safer than the common cryoprotectant, dimethylsulfoxide. The results of this research will inform the development of a suite of potential new ionic liquid-based cryoprotectants that could potentially allow the cryopreservation of new cell types.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Wenjian Shen, Haoyu Cai, Yingjie Kong, Wei Dong, Cong Bai, Guijie Liang, Wangnan Li, Juan Zhao, Fuzhi Huang, Yi-Bing Cheng, Jie Zhong
Summary: A series of protic amine carboxylic acid ion liquids are used as precursor additives to regulate the crystal growth and phase transition of alpha-FAPbI(3), resulting in the optimization of the phase transition process. The functional groups of carboxyl and ammonium passivate lead ions, vacancies, and organic vacancies, eliminating nonradiative recombination. The small-area devices incorporated with methylammonium butyrate (MAB) and n-butylammonium formate (BAFa) additives achieved champion efficiencies of 25.10% and 24.52%, respectively, while large-area modules achieved PCEs of 21.26% and 19.27% for MAB and BAFa additives, demonstrating the potential for commercializing large-area perovskite solar cells.
Article
Biochemistry & Molecular Biology
Ting He, Cheng-Bin Hong, Peng-Chong Jiao, Heng Xiang, Yan Zhang, Hua-Qiang Cai, Shuang-Long Wang, Guo-Hong Tao
Summary: The study systematically examined the Bronsted acidity of [AAE]X PILs in green solvents and found that the cationic structures had little effect on the acidity, while the anions had no effect. Four different methods were used to determine the acidic strength, including the overlapping indicator method, potential titration method, Hammett method, and DFT method. These methods were reliable for assessing the acidity of [AAE]X.
Article
Chemistry, Physical
J. L. Viesca, P. Oulego, R. Gonzalez, H. Guo, A. Hernandez Battez, P. Iglesias
Summary: The study found that the six types of protic ionic liquids have certain biodegradability and toxicity, but their environmental properties are significantly better than industrial lubricant additives. Five of the PILs showed no corrosive activity on steel, with only one exhibiting partial miscibility in ester-based oil.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Qingshan Liu, Haoqi Dai, Hongyun Chi, Ketian Shi, Qige Zheng, Yanxia Qi
Summary: This paper investigates the density and dynamic viscosity of three dilute solutions at different temperature and solute concentration ranges. The results show that the density and dynamic viscosity of the solutions are affected by temperature and solute concentration. By analyzing the solutions, the relevant parameters of density and viscosity are obtained, and the interactions between solute and solvent as well as between solute and solute are discussed.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Wei Huang, Hongyu Zhu, Qingshan Liu, Xubiao Zhou, Shangsheng Li, Meihua Hu, Taichao Su
Summary: It was found that Se alloying can effectively tune the band gap and impurity conductance activation energy of CoSbS, leading to increased carrier concentration and enhanced power factor. The thermal conductivity was suppressed due to mass fluctuation and strain field fluctuation induced by Se alloying. The maximum zT value of 0.22 was achieved for CoSb0.9Se0.1S at 823 K, which is twice that of pristine CoSbS. The research demonstrates that constructing antisite defect of SeSb in CoSbS is an effective route to optimize its thermoelectric performance.
SOLID STATE SCIENCES
(2023)
Article
Environmental Sciences
Zheng Wang, Qianchi Ma, Zhida Zhang, Zichao Li, Cuihong Qin, Junfeng Chen, Chuansheng Peng
Summary: In this study, a model was designed to calculate the nitrogen-oxide-emission intensity of ships and the sulfur content of ship fuels using theoretical deduction from the law of the conservation of mass. The reliability and availability of the derived results were empirically evaluated using measurement data for NOx, SO2, and CO2. A compliance-determination workflow for NOx-emission intensity and fuel-sulfur-content monitoring and supervision in on-voyage ships were proposed. The results showed that the ship fuel's NOx-emission intensity and sulfur content can be evaluated by monitoring the exhaust-gas composition online and used to assist in maritime monitoring and the supervision of pollutant emissions from ships.
Article
Environmental Sciences
Haotian Zhang, Pengfei Tian, Chenliang Kang, Yumin Guo, Zeren Yu, Gefei Lu, Chenguang Tang, Tao Du, Jiayun Wang, Zhida Zhang, Xianjie Cao, Jiening Liang, Jinsen Shi
Summary: This study investigated the physico-chemical properties and major sources of atmospheric aerosols in the central Tibetan Plateau (TP). It found that organic matter and mineral dust were the main components of the total suspended particulate matter (TSP), with crustal materials being the main contributor to mineral dust. Organic carbon and mineral dust had the same sources, but local wind erosion was not the main contributor to mineral dust.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Jiayun Wang, Xianjie Cao, Mengqi Li, Chenguang Tang, Zhida Zhang, Haotian Zhang, Pengfei Tian, Jiening Liang, Lei Zhang, Jinsen Shi
Summary: This study investigated the aerosol optical properties and potential sources over the Nam Co region. The results showed that the average aerosol optical depth during the observation period was 0.025, with an average black carbon concentration of 37 ng/m3 and an average aerosol number concentration of 129 N/cm3. The diurnal variation and vertical distribution of aerosols were influenced by local meteorological elements. The study found that the summer monsoon winds from South Asia contributed to the black carbon concentration in the Nam Co region, and particles from the Taklimakan Desert resulted in a significant increase in aerosol number concentration. These findings are important for understanding the influence of aerosols on the Tibetan Plateau and regional/global weather and climate.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Engineering, Electrical & Electronic
Zhida Zhang, Ling Zheng, Yinong Li, Shaohua Li, Yixiao Liang
Summary: This paper proposes a novel cooperative strategy for trajectory tracking and stability control of four-wheel independent drive (4WID) autonomous vehicles. An adaptive trajectory tracking controller is designed using the model predictive control (MPC) theory, which modifies the tire cornering stiffness in real-time based on the estimated lateral force. A vehicle stability controller is then designed based on sliding mode control (SMC), considering tire force saturation constraint and relative weight of yaw rate and sideslip angle. The feasibility and adaptability of the proposed method are verified through hardware-in-the-loop (HIL) test and CarSim-Simulink co-simulation. An experimental case is presented to demonstrate the realizability of the proposed method.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jian Wang, Wen Gu, Xiao Chen, Mengxiang Yang, Jia Chen, Mingxing Zhao, Qing-Shan Liu
Summary: Four imidazolium-type ionic liquids (ILs) were synthesized and used to prepare binary mixtures with organic solvents. The electrical conductivity and refractive index of the mixtures were measured and analyzed. The dependence of conductivities and refractive indexes on concentration and temperature was studied using empirical equations. The effects of introducing different groups into the ILs on their properties were discussed.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Organic
Jin Zhang, Jianghan Cao, Jiabin Zhou, Jie Zhang, Yinglin Zhao, Zhida Zhang, Renhua Liu
Summary: In this study, a new reaction was reported in which the benzyl C-H bonds of alkylarenes were directly esterified by carboxylic acids to produce benzyl esters in high yields. This reaction was catalyzed by Pd nanoparticles on N-doped carbon composites, and no oxidants or hydrogen acceptors were required. The use of readily available alkylarenes as raw materials for benzyl ester synthesis without oxidants is atom- and step-efficient.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Engineering, Mechanical
Ziwei Zhang, Ling Zheng, Yinong Li, Hao Zheng, Zhida Zhang
Summary: An adaptive strategy is presented to address the impact of external disturbances, parameter perturbance, data delay, and control lag on the control performance of autonomous vehicles. By constructing an integrated dynamic model, utilizing a first-order model to handle control lag, and designing delay-dependent criteria, the proposed strategy enhances adaptability and robustness. The strategy is validated through comparative cases in uncertain driving conditions.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2023)
Article
Endocrinology & Metabolism
Peng Zhang, Honglin Chen, Bin Xie, Wenhua Zhao, Qi Shang, Jiahui He, Gengyang Shen, Xiang Yu, Zhida Zhang, Guangye Zhu, Guifeng Chen, Fuyong Yu, De Liang, Jingjing Tang, Jianchao Cui, Zhixiang Liu, Hui Ren, Xiaobing Jiang
Summary: This study investigates the roles of m6A modulators derived from serum exosome in postmenopausal osteoporosis (PMOP). Through bioinformatics analysis, 7 significant m6A modulators were identified and a predictive model for PMOP risk was constructed. Two m6A subtypes were classified based on these modulators, and their correlation with immune cell infiltration and osteoclast differentiation was examined.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Optics
Lu Gao, Ying Zang, Guangwu Zhao, Hengnian Qi, Qizhe Tang, Qingshan Liu, Liangquan Jia
Summary: In order to solve the defects of the traditional CO2 concentration detection method in seed respiration, a seed respiration CO2 detection system based on wavelength modulation spectroscopy (WMS) techniques in tunable diode laser absorption spectroscopy (TDLAS) is proposed. The system uses a 2004 nm distributed feedback (DFB) laser as the light source and a double-layer seed respiration device with an effective optical path of about 21 meters. Experimental results show that the system has the advantages of strong stability, high sampling frequency, and high detection accuracy.
INTERNATIONAL JOURNAL OF OPTICS
(2023)
Article
Meteorology & Atmospheric Sciences
Pengfei Tian, Zeren Yu, Chen Cui, Jianping Huang, Chenliang Kang, Jinsen Shi, Xianjie Cao, Lei Zhang
Summary: This study found that the single-scattering albedo (SSA) of atmospheric aerosols in the Himalayas is primarily modulated by size distribution rather than absorption. This finding has important implications for understanding aerosol radiative effects globally.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Bing Wen, Dan-Xia Deng, Lian-Di Liao, Zhi-Da Zhang, Ya-Qi Zheng, Ke Dong, Li-Yan Xu, En-Min Li
Summary: In this study, CHAF1A and PCNA were identified as key cell cycle-related proteins leading to the malignant progression of esophageal cancer. These proteins could serve as important prognostic biomarkers and targets for esophageal cancer.
Review
Public, Environmental & Occupational Health
Zhiping Qin, Yongbiao Li, Wenjing Sun, Yangyang Lu, Nana Zhang, Rongfei Yang, Yiting Liu, Li Tang, Qingshan Liu
Summary: Anti-inflammatory drugs can reduce mortality in patients with respiratory tract infections caused by SARS-CoV-2, with methylprednisolone being more effective than other drugs.
FRONTIERS IN PUBLIC HEALTH
(2023)
Review
Nutrition & Dietetics
Yingxiang Yu, Zhida Zhang, Cuiqing Chang
Summary: Chlorogenic acid (CGA), widely present in plant foods, has biological activities such as antioxidant, anti-inflammatory, antibacterial, and antiviral effects, and plays a role in regulating glucose and lipid metabolism, improving insulin resistance, and reducing the risk of diabetes and cardiovascular diseases. Intake of 200 mg or more of CGA daily can improve fasting blood glucose levels.
ASIA PACIFIC JOURNAL OF CLINICAL NUTRITION
(2022)
