JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2025
·
IF 2.1
Wenfeng Huang,Yufeng Wei,Xiaocong Liu,Ruonan Li,Qiuxiang Yin,Lihong Jia
The equilibrium solubility of quetiapine fumarate was determined in twelve individual solvents and one binary solvent mixture by the gravimetric method at atmospheric pressure over a temperature range of 283.15–323.15 K. The results showed that the solubility increases with increasing temperature in all selected solvents. The solubility order is tetrahydrofuran–water (mole fraction of tetrahydrofuran 0.8083) > tetrahydrofuran > n-propanol > dichloromethane > butanone > methyl isobutyl ketone > xylenes > ethyl formate > tert-butyl methyl ether > isopropyl acetate > toluene > hexane ≈ heptane. The modified Apelblat model, λh model, nonrandom two-liquid model, and van’t Hoff–Jouyban–Acree model were employed to correlate the experimental solubility. The four models provided satisfactory fits, as confirmed by the average relative deviation and the root-mean-square deviation. The modified Apelblat model showed the best performance among them. The accurate solubility data are essential for the design and optimization of the crystallization process of QF.
研究领域:
药学
·
化学工程
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 35
·期 15
·2211311
·
IF 29.4
Dawei Sha,Yurong You,Rongxiang Hu,Xin Cao,Yicheng Wei,Heng Zhang,Long Pan,ZhengMing Sun
Anion vacancy engineering (AVE) is widely used to improve the Li-ion and Na-ion storage of conversion-type anode materials. However, AVE is still an emerging strategy in K-ion batteries, which are promising for large-scale energy storage. In addition, the role of anion vacancies on ion storage is far from clear, despite several proposed explanations. Herein, by employing VSe 2 as a model conversion-type anode material, Se vacancies are intentionally introduced (labeled as P-VSe 2− x ) to investigate their effect on K + storage. The P-VSe 2− x shows excellent cyclability in half cells (143 mA h g −1 at 3.0 A g −1 after 1000 cycles) and high energy density in coin-type full cells (206.8 Wh kg −1 ). By applying various electrochemical techniques, the effects of Se vacancies on the redox potentials of K-ion insertion/extraction and the K-ion diffusion in electrodes upon cycling are uncovered. In addition, the structural evolution of Se vacancies during potassiation/de-potassiation using various operando and ex characterizations is revealed. Moreover, it is demonstrated that Se vacancies can facilitate the breaking of V Se bonds upon the P-VSe 2− x conversion using theoretical calculations. This work comprehensively explains the role of anion vacancies in ion storage for developing high-performance conversion-type anode materials.
研究领域:
材料科学
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电化学
·
能源存储
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2018
·
IF 2.196
Ying Zhang,Taotao Zhan,Junshuai Chen,Yutian Chen,Maogang He
1-Methoxy-2-propanol (PGMME) is widely used as an oxygenated additive for diesel fuel. Experimental speed of sound data for PGMME are very scarce. Therefore, the speed of sound in PGMME was measured by the Brillouin light scattering (BLS) method in the temperature range from (306.81 to 648.29) K and pressures up to 10 MPa, including saturated liquid/vapor, liquid, and near-critical and supercritical fluid states. The relative expanded uncertainty (k = 2) of our BLS experimental system is estimated to be less than 1.4%. The variation of the speed of sound with the temperature and pressure is illustrated. Moreover, correlations for experimental speeds of sound in the saturated liquid/vapor and liquid are presented. The correlations represent the experimental data with average absolute deviations of 0.24% for the saturated liquid, 0.19% for the saturated vapor, and 0.36% for the liquid region.
研究领域:
热力学
·
流体物理
·
物理化学
·
化学工程
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DOI
高影响因子
Materials Today Nano
·
2022
·
IF 13.364
Dongxing Huo,Hua Tian,Weiguang Wang,Gequn Shu
Low-grade heat widely exists in nature and industry processes. Due to the lack of effective recovery technologies, a large amount of low-grade heat is wasted. Thermally regenerative electrochemical cycle (TREC) system can efficiently convert low-grade heat into electrical energy. However, the low power density limits the practical application of TREC system. To improve the power density and heat-to-electricity conversion efficiency, a TREC system with Na/K mixed electrolytes (4 M sodium nitrate [NaNO 3 ] + 1 M potassium nitrate [KNO 3 ]) is proposed. When the temperature difference of the system is 34°C (between 46 °C and 12 °C), the heat-to-electricity conversion efficiency can be as high as 3.9% (relative Carnot efficiency of 36.4%). At the current density of 40.16 mA/g , the power density can reach 23.29 mW/g, increasing to 6.5 times of conventional system, which is the highest level in TREC system. The comprehensive results of electrochemical test and elemental analysis show that K + has superior electrochemical reaction characteristics. The proposed sodium/potassium (Na/K) mixed electrolyte system improves the power density and heat-to-electricity conversion efficiency by reducing the voltage hysteresis and increasing the operating current and voltage.
研究领域:
能源工程
·
电化学
·
可持续能源
·
热能转换
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2022
·
IF 3.119
Song Lin,Yufan Pang,Jingwei Cao,Yueyang Jiang,Houchun Yan,Qingsong Li
For the separation of 2,2,2-trifluoroethanol in water, two alcohols and two ketones were chosen as extractants for experiments at 101.3 kPa and 298.2 K. The liquid–liquid equilibrium data for water + 2,2,2-trifluoroethanol + (4-methyl-2-pentanol, methyl isobutyl ketone, methyl isopropyl ketone, and benzyl alcohol) were measured under these conditions. The separation effects of the four solvents were assessed by the distribution coefficient (D) and the separation factor (S). Meantime, the interaction parameters were obtained by fitting the experimental data using NRTL and UNIQUAC models, and both values of AAD and rmsd were less than 0.43%. The GUI-MATLAB series of topological analysis tools were used to check the accuracy of the measured values with the binary interaction parameters.
研究领域:
化学工程
·
热力学
·
分离科学
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2014
·
IF 2.045
Qi Zhang,Yonghong Hu,Ying Shi,Yang Yang,Limin Cheng,Cuicui Cao,Wenge Yang
Data on corresponding solid–liquid equilibrium of dibenzothiophene (DBT) in different solvents are essential for a preliminary study of industrial applications. In this study, the solubility behavior of DBT in different solvents, such as methanol, ethanol, isopropyl alcohol, butan-1-ol, formic acid, and acetonitrile at temperatures ranging from (278.15 to 328.15) K was investigated. An analytical stirred-flask method was employed to measure the dissolubility of DBT. For the temperature range investigated, the solubility of dibenzothiophene in the solvents increased with increasing temperature. The thermodynamic models, such as the Van ‘t Hoff model, the modified Apelblat model and the Buchowski–Ksiazaczak λh model were investigated to describe the experimental data. It was found that the modified Apelblat model was the most suitable for predicting the solubility behavior of DBT with a temperature increment. The calculated thermodynamic parameters indicated that in each studied solvent the dissolution process of DBT is endothermic.
研究领域:
化学热力学
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溶解度工程
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分离过程
·
物理化学
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DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Yao Lu,Miaoyan Song,Jieyou Huang,Le Zhang,Binyu Zhao,Wenwei Wu,Xuehang Wu
Charging P2-type Na 0.66 Ni 0.33 Mn 0.67 O 2 (NNM) to a high upper cut-off voltage of 4.3 V (vs. Na + /Na) can yield a competitive discharge voltage (3.6 V-class) and capacity. However, achieving stable cycling for NNM under this condition remains challenging owing to an unfavorable phase transition and a large lattice-volume change. Herein, a dual-site doping strategy is used to simultaneously realize a pinning effect at the Na and transition metal sites. Incorporating pinned K + and Zn 2+ ions considerably enhances the structural stability of NNM, affording a complete single-phase reaction with ultralow strain (only 0.54 % variation in volume) during Na + insertion/extraction. The synergistic contributions of dual-site doping to the enhanced electronic conductivity , lowered Na + migration barrier, and increased Na + diffusion coefficients are confirmed via theoretical calculations. Consequently, the K + /Zn 2+ dual-site-doped Na 0.63 K 0.03 Ni 0.26 Zn 0.07 Mn 0.67 O 2 delivers satisfactory discharge capacities of 118.6 and 63.2 mAh g −1 at 10 and 2000 mA g −1 , respectively, and achieves an excellent capacity retention of 81.2 % after 200 cycles at 500 mA g −1 . This study provides a promising method to strengthen the stability of the Ni − Mn-based layered framework and optimize other high-voltage and high-capacity layered oxide cathode materials .
研究领域:
材料科学
·
电化学
·
储能技术
·
电池技术
·
无机化学
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2023
·
IF 3.6
Mingsheng Cai,Tianchun Lang,Shuangqiang Fang,Tao Han,Damir Valiev,Houjiang You,Chong Liu,Jing Yu,Peng Su,Xiaolong Jing,Guanghui Ge,Bitao Liu,Elena F. Polisadova
Fluorescent materials are widely used for anti-counterfeiting of information security and commodities. However, the increasing requirements for fluorescent anti-counterfeiting technology urgently require the development of novel fluorescent materials with multicolor fluorescence, single component, and excellent stability. Herein, a color tunable Ba 0·94 Ca 0.06 ScO 2 F: Eu 2+ , Bi 3+ , K + perovskite with dependence of excitation wavelength for high-level anti-counterfeiting is reported. The fluorescence spectra of Ba 0·94 Ca 0.06 ScO 2 F: Eu 2+ , Bi 3+ , K + perovskite show the tunable emission band with the peak between 479 and 509 nm. It is worth noting that the peak intensity ratio at 479 and 509 nm changes with the dependence of the excitation wavelength. Meanwhile, the snowflake pattern is designed to demonstrate the potential applications in anti-counterfeiting, which obviously shows four different color patterns under the sunlight, 320 360, and 415 nm excitation, respectively.
研究领域:
材料科学
·
光学材料
·
防伪技术
·
发光学
·
光子学
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DOI
高影响因子
Journal of Materials Chemistry C
·
2017
·Vol. 5
·期 37
·9545-9551
·
IF 5.256
Jian-Min Li,Jie Fang
An anthracene vapor-assisted inverse transport growth mechanism of unsupported ultrathin two-dimensional (2D) superconducting single-crystal niobium (Nb) and niobium diselenide (NbSe2) nanoplates (thickness ∼2.5 nm) using anthracene and NbSe2 powders as precursors is reported. Besides the whisker-like counterparts, the anthracene vapor hierarchical invasion into NbSe2 leads to 2D Nb nanoplates with a {110} surface and 2D few-layered {0001} NbSe2 nanoplates grown in the high-temperature residual region, while sub-millimeter selenium whiskers are found in the low-temperature transporting region. Direct magnetization measurements demonstrated that superconductivity at ∼3.3 K was clearly observed in the unsupported ultrathin Nb and NbSe2 nanoplates. These findings may offer a new way to produce freestanding single-crystal 2D superconductors and elemental 2D metallic nanoplates.
研究领域:
材料科学
·
凝聚态物理
·
纳米技术
·
超导物理
·
二维材料
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DOI
高影响因子
Journal of Chemistry
·
2021
·Vol. 2021
·期 1
·4541213
·
IF 2.506
Zhenzhen Jiang,Chi Ma,Gaoling Liu,Kangrui Sun,Mingli Li,Yafei Guo,Lingzong Meng,Tianlong Deng
To effectively develop the rare earth elements resources from the geothermal waters, it is essential to understand the volumetric properties of the aqueous solution system to establish the relative thermodynamic model. In this study, densities of YCl 3 (aq) at the molalities of 0.08837–1.60639 mol·kg −1 from 283.15 K to 363.15 K at 5 K intervals and ambient pressure were measured experimentally by an Anton Paar digital vibrating-tube densimeter. Based on experimental data, the volumetric properties including apparent molar volume ( V ϕ ) and the coefficient of thermal expansion of the solution ( α ) of the binary systems (YCl 3 + H 2 O) were derived. The 3D diagram ( m i , T , V ϕ ) of apparent molar volumes against temperature and molality was plotted. On the basis of the Pitzer ion-interaction model of electrolyte, the Pitzer single-salt parameters ( , , and ) for YCl 3 and temperature-dependence equation F ( i , p , T ) = a 1 + a 2 ln(T/298.15) + a 3 (T-298.15) + a 4 /(620-T) + a 5 (T-227) as well as their coefficients a i ( i = 1–5) in the binary system were obtained for the first time. The values of Pitzer single-salt parameters of YCl 3 agree well with the calculated values corresponding to the temperature-dependence equations, indicating that single-salt parameters and temperature-dependent formula obtained in this work are reliable.
研究领域:
溶液化学
·
热力学
·
无机化学
·
稀土资源
·
地热化学
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DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2020
·
IF 3.232
Lijuan Huang,Longyan Xiang,Yan Zhang,Yongan Wang,Zhiyong Nie
The simultaneous detection of K + and Tl + can serve as a toxicological diagnostic tool for thallium poisoning. Colorimetric-reaction-based nanoprobes have emerged as promising sensors for the rapid and ultrasensitive detection of molecular species in simple systems. However, the development of viable screening tools for multicomponent analysis in complex systems remains challenging owing to interference from coexisting materials in the media. Herein, a simple chemical sensor array based on the peroxidase-like activity of gold nanoparticles modified with single-stranded DNA (AuNPs-ssDNA) and chemometrics was developed for the simultaneous detection of K + and Tl + in aqueous solutions and serum. The use of a K + adapter conferred high selectivity to the developed method. Optimized AuNPs-ssDNAs were used to construct a sensor array, which together with chemometrics provided fingerprints that can facilitate the simultaneous analysis of multiple components. The developed colorimetric reaction in combination with the chemometrics assay was directly used as a biosensor array, which exhibited detection limits of 107.33 nM for K + and 19.26 nM for Tl + . The developed method could potentially serve as a diagnostic technique for investigating thallium poisoning and toxicology.
研究领域:
分析化学
·
毒理学
·
环境科学
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Yongyi Li,Wei Li,Zhigang Shao,Huiyang Xu,Shuanglong Li,Bo Wang,Xiaorui Huang,Shichao Jiao,Zhiwei Li
Photocatalytic production of hydrogen peroxide from water is regarded as an environmentally benign technology for energy storage and supply. Herein, a disordered K&Na-C 3 N 5 photocatalyst co-intercalated with K + &Na + and modified by cyano/hydroxyl groups is successfully fabricated via alkali-activated thermal-polymerization. Alkali activation effectively anchors cyano and hydroxyl active groups on the surface: hydroxyl groups enhance the material's hydrophilicity and promote proton transfer, while cyano groups exhibit electron-attracting characteristics to localize photogenerated electrons. Simultaneously, interlayer intercalation of K + &Na + forms electron transport channels, synergistically facilitating surface proton transfer and optimizing charge distribution. This multi-component modification strategy significantly enhances the adsorption capacity of O 2 , effectively modulates the 2e − ORR pathway, and improves the selectivity of H 2 O 2 , demonstrating its excellent bifunctional properties. Experimental data show that the optimally alkali-activated K 3 &Na 3 -C 3 N 5 achieves a remarkably high H 2 O 2 production rate of 26,920.49 μmol g −1 ·h −1 — a 90.3-fold increase over unmodified C 3 N 5 . This work pioneers alkali activation as a universal and scalable paradigm for engineering surface-active sites to enable performance amplification through functional group-metal ion cooperativity, and it provides a design blueprint for advanced carbon nitride-based photocatalysts to boost H 2 O 2 fuel cell performance.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）