Advanced Energy and Sustainability Research
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2022
·Vol. 3
·期 7
·2200006
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IF 0
Shasha Hao,Shaotang Yu,Xinge Liu,Bingyan Li,Shuaiqi Han,Hao Xin,Weibo Yan,Wei Huang
Copper indium gallium selenide Cu(In,Ga)Se 2 (CIGS) solar cells fabricated by vacuum thermal evaporation, magnetron sputtering, or organic solvent solution-process either lead to high manufacturing cost and film nonuniformity or cause explosion, toxication and pollution. To address these issues, herein, water as a solvent to prepare the CIGS precursor solution is used and 7.04% efficient CIGS solar cells without MgF 2 antireflection layer is obtained. Furthermore, for the first time, K doping on CIGS films via adding “K + ” into the aqueous precursor solution is conducted. K–In–Se species is formed in the process of selenization and acts as a Se reservoir during CIGS grain growth, resulting in improved quality of the CIGS film with much larger grains. K doping can also inhibit the loss of Ga element. The high-bandgap K–In–Se phase and higher Ga content combine to result in the increase in the CIGS bandgap. As a result, the K-doped CIGS solar cell achieves a 33.1% enhancement in efficiency to 9.37%, with the significant increase in the open-circuit voltage from 520.5 to 597.1 mV and fill factor from 50.77 to 55.36%. These results provide an important preliminary foundation for the development of aqueous precursor solution-based CIGS solar cells.
研究领域:
光伏技术
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材料科学
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薄膜太阳能电池
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半导体材料
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DOI
MICROPOROUS AND MESOPOROUS MATERIALS
·
2022
·
IF 5.876
Yongbiao Sun,Jianfeng Tang,Guangyan Li,Yihuai Hua,Yunbing Sun,Suyang Hu,Xiaojin Wen
The Li + , K + , Mg 2+ and Ca 2+ -exchanged X zeolites were prepared using ion exchange method for producing efficient adsorbents that could be used in the purification of liquefied natural gas (LNG). The adsorption, separation and regeneration characteristics of the samples were systematically explored and discussed using static adsorption of pure gases, dynamic adsorption of a binary gas mixture (3%CO 2 and 97%CH 4 ) and regeneration experiments. The results showed that Li13X had the largest surface area of 520 m 2 /g, whereas Ca13X possessed the highest micropore volume of 0.25 m 3 /g with the smaller pore size observed from the pore size distribution . The adsorption capacity of Li13X for CO 2 (4.10 mmol/g) was almost the same as that of Ca13X (4.12 mmol/g), which were larger than all the other samples at 120 kPa and 30 °C. However, K13X had the highest static CO 2 /CH 4 separation factor of 46, which was due to the increased basicity of the framework. For the dynamic adsorption, Ca13X possessed the highest CO 2 /CH 4 separation factor of 93, and showed the smallest CH 4 adsorption capacity of 1.22 mmol/g. As for the regeneration of the proposed adsorbents, the heat requirement for CO 2 in dynamic was not only affected by the isosteric heat, but was also dependent on the competition between CH 4 and CO 2 . Moreover, the static and dynamic vacuum regenerations had the same tendency and mainly depended on the pore size distribution.
研究领域:
材料科学
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化学工程
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环境科学
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能源技术
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吸附分离
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLUTION CHEMISTRY
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2025
·
IF 1.3
Cai Weibin,Meng Hui,Zhou Qibo,Zeng Minzhi,Gai Hengjun
This study experimentally measured the liquid–liquid equilibrium (LLE) data for the cyclohexanol + phenol + water system at three specific temperatures (298.15 K, 308.15 K, and 318.15 K) under standard atmospheric conditions, and these data were subsequently utilized to compute the distribution coefficients ( D ) and separation factors ( S ), which served as critical indicators for evaluating cyclohexanol's performance in extracting phenol. Quantitative analysis indicates that for systems with phenol concentrations above 0.0015, cyclohexanol is not only a significantly better extractant than cyclohexanone, but also has stronger temperature adaptability. Additionally, the non-random two liquid model and the universal quasi-chemical model were employed for correlation analysis of the experimental data, yielding binary interaction parameters and root-mean-square deviation (RMSD) values, with the RMSD consistently remaining below 0.32 across all tested temperatures, thereby validating the strong agreement between the model predictions and the experimental data.
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2022
·
IF 3.119
Jingzhou Guo,Junwei Yang,Yuanzuo Zou,Yuan Pu,Dan Wang
The 9,9-Dihexyl-2,7-dibromofluorene (F6-Br) is an important intermediate product in the synthesis of functional polyfluorenes for various applications. The solvent/antisolvent method has been one of the efficient methods to purify organic molecules for advanced applications, for which the solubility data of solutes in different solvents are the basis of purification. In this work, the solubility values of F6-Br in 12 kinds of solvents in the temperature range of 283.15–323.15 K and atmospheric pressure were determined by using the isothermal saturation method. The selected solvents were methanol, ethanol, acetonitrile, n-butanol, isopropanol, dichloromethane, dimethyl sulfoxide, 1,4-dioxane, ethyl acetate, n-hexane, tetrahydrofuran, chloroform, and toluene. The measured solubility data were correlated by the modified Apelblat equation. The maximum value of mean square deviation was 3.95 × 10–3, which retains practical guiding significance. The purification of F6-Br via solvent/antisolvent precipitation processing was demonstrated, and the involvement of rotating packed-bed-based technology significantly intensified the process efficiency, which showed promising application value for industrial production.
研究领域:
化学工程
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材料科学
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有机化学
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2024
·Vol. 11
·期 6
·1754-1763
·
IF 6.1
Qingqing Huang,Liyun Cao,Yuhang Wang,Jiayin Li,Yiting Wang,Shiyin Wei,Shuzhuo Bai,Koji Kajiyoshi,Yijun Liu,Zhenjiang Li,Jianfeng Huang
Tungsten disulfide (WS2) presents a layered structure with a high theoretical capacity (433 mA h g−1) in potassium-ion batteries, making it a promising anode material. However, its kinetics is poor with limited practical capacity and it is still a challenge to design new structures to improve its kinetics. In this work, a hollow Cu9S5/C/WS2 composite structure is designed. It is used as an anode in potassium-ion batteries (PIBs) with a high reversible capacity (406 mA h g−1 after 150 cycles at 200 mA g−1) and excellent rate performance (246 mA h g−1 at 20 A g−1). These results are attributed to its unique hollow composite structure, where the WS2 sheets are pinned on hollow cubic carbon by Cu9S5 nanowires. On one hand, the introduction of Cu9S5 nanowires expands the layer spacing of WS2 and forms a K+ fast diffusion channel. On the other hand, hollow carbon and Cu9S5 nanowires form a fast electron transmission path, which improves the charge transport rate. Additionally, the use of hollow carbon and Cu9S5 nanowires as a framework enhances structural stability. The synergistic effect of these aspects finally realizes fast and stable K+ storage. This work provides a new insight into the design of high-performance potassium storage devices using layered metal sulfides.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 18
·6162-6172
·
IF 6.4
Zhe Zhang,Peng He,Wenjun Ma,Peiyuan Zuo,Xiaoyun Liu,Qixin Zhuang
In order to solve the problem of signal delay and crosstalk caused by the miniaturization of VLSI circuits, it is urgently required to further reduce the dielectric constant (k) of materials. To date, porous low-dielectric materials still have shortcomings such as difficulty in controlling the pore volume and large fluctuation of k over a wide temperature range. Herein, a novel and controllable selective etching strategy to fabricate yolk–multishell mesoporous silica nanoparticles (YS-CSSs@3S-mSiO2) is reported. This strategy allows precise control of the number of spherical shell layers, diameter, cavity size, mesoporous structure and core size, coupled with the closed-pore silica spheres (CSSs) as the core so that the obtained YS-CSSs@3S-mSiO2 nanoparticles have a high pore volume (0.95 cm3 g−1), low specific surface area (144 m2 g−1), uniform diameter and excellent monodispersity. We found that the corresponding 8 wt%-YS-CSSs@3S-mSiO2/fluorinated polybenzoxazole (6FPBO) composite film possesses an ultralow dielectric constant (k = 1.87) that is very competitive among the low-k materials reported. Moreover, the nanocomposite films maintain great stability with almost unchanged k values over a wide temperature range up to 200 °C. The 5% weight loss temperature of nanocomposites reaches a maximum value of 540 °C. Accordingly, our current work provides a promising candidate for ultralow-k materials and lays a solid foundation for advanced material applications in the 5G communication and semiconductor field.
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产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2023
·
IF 4.5
Mengmei Liu,Zhihua Li,Yibo Zhang
The safety and low toxicity of aqueous zinc-ion batteries (ZIBs) are piqueing intense scientific interest. Slow reaction kinetics and substantial structural degradation of the cathode materials, however, prevent the creation of ZIBs. As a better cathode for ZIBs, tunnel-structured V 2 O 5 hierarchical with a high preintercalated K cation content (K-V 2 O 5 ) are proposed here. The K-V 2 O 5 are specifically made using a self-sacrificial template approach that also involves hydrothermal intercalation in a neutral solvent and phase change during annealing. A subsequent H + and Zn 2+ intercalation procedure at various voltage platforms is clarified when tested as cathodes for ZIBs. Prior to the subsequent insertion of Zn 2+ into V 2 O 5 , the water-solvated H + first enters tunnel cavities, which partially transforms the V 2 O 5 phase from a tunnel-type structure to a layered-type structure. The pre-intercalated K cations with a high content that act as pillars in the layered-type matrix stabilize the layered structures and widen the migration channels for Zn 2+ , which can aid in the diffusion of Zn 2+ in the V 2 O 5 cathodes.
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2023
·
IF 2.6
Xinyi Lü,Xiaotong Yang,Xiaoli Wu,Jidong Wang,Zhong Zhao
In this paper, the solubility of menadiol diacetate in nine alcohols (methanol, ethanol, n-propanol, i-propanol, n-butanol, i-butanol, n-amyl alcohol, i-amyl alcohol, and cyclohexanol) and five n-alkyl acetates (methyl acetate, ethyl acetate, n-propyl acetate, n-butyl acetate, and amyl acetate) was experimentally measured with the aid of a laser dynamic device at temperatures from 283.15 to 323.15 K. The solubility of menadiol diacetate as a function of temperature was regressed in terms of three semiempirical solubility models (Apelblat, van’t Hoff, and λh), two activity coefficient solubility models (Wilson and NRTL), and the Jouyban model. The thermodynamic mixing properties (mixing Gibbs energy, entropy, and enthalpy) of the solutions were estimated in terms of the measured solubility data and the regressed parameters of the Wilson model.
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2023
·
IF 2.6
Xiaotong Yang,Jidong Wang,Miao Ma,Dongxu Wang,Jinliang Wu,Zhong Zhao
In this paper, the solubility of terbinafine hydrochloride in 13 mono-solvents was measured in the temperature range from 283.15 K to 323.15 K at ambient pressure with the assistance of a laser-based dynamic solubility-monitoring device. It was concluded that the solubility of terbinafine hydrochloride in these mono-solvents increases with rising temperature. At 323.15 K, the molar solubility shows the following order: cyclohexanol (7.739 × 10–2) > n-propyl alcohol (7.351 × 10–2) > n-amyl alcohol (6.967 × 10–2) > iso-butanol (6.932 × 10–2) > n-butanol (6.850 × 10–2) ≈ ethanol (6.778 × 10–2) > isoamyl alcohol (4.926 × 10–2) >1-hexanol (4.689 × 10–2) > dimethyl sulfoxide (4.010 × 10–2) > sec-butanol (2.878 × 10–2) > isopropyl alcohol (2.452 × 10–2) > isooctyl alcohol (2.211 × 10–2) > acetonitrile (0.532 × 10–2). Subsequently, the relationship between the solubility of terbinafine hydrochloride and temperature was correlated by six models (Apelblat, van’t Hoff, λh, Wilson, NRTL, and Jouyban models), and the mixing thermodynamic properties of the solutions were evaluated with the solubility and the parameters simulated by the Wilson model. In addition, the solvent effect on the solubility of terbinafine hydrochloride was discussed based on the Kamlet–Abboud–Taft linear solvation energy relationships.
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DOI
高影响因子
Frontiers in Chemistry
·
2023
·
IF 5.5
Cui Ruizhi,Peng Changwei,Nie Guoliang,Sang Shihua,Ren Hongbao,Li Wu
In view of the composition characteristics of lithium, calcium and bromine rich in Nanyishan oil and gas field brine of western Qaidam Basin, Qinghai Province, as well as based on the results reported in relevant literature, the phase equilibrium relationship of ternary system LiBr-CaBr2-H2O at 298.15 K was studied by isothermal dissolution equilibrium method. The equilibrium solid phase crystallization regions, as well as the compositions of invariant point, in phase diagram of this ternary system were clarified. On basis of the above ternary system research, the stable phase equilibria of quaternary systems (LiBr-NaBr-CaBr2-H2O, LiBr-KBr-CaBr2-H2O and LiBr-MgBr2-CaBr2-H2O), as well as quinary systems (LiBr-NaBr-KBr-CaBr2-H2O, LiBr-NaBr-MgBr2-CaBr2-H2O and LiBr-KBr-MgBr2-CaBr2-H2O) were further carried out at 298.15 K. According to the above experimental results, the corresponding phase diagrams at 298.15 K were drawn, which revealed the phase relationship of each component in solution and the law of crystallization and dissolution, and meanwhile summarized changing trends. The research results of this paper lay a foundation for further research on the multitemperature phase equilibria and thermodynamic properties of lithium and bromine containing high-component brine system in later stage, and also provide basic thermodynamic data for guiding the comprehensive development and utilization of this oil and gas field brine resource.
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产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2022
·
IF 4.132
Guo-liang Nie,Rui-zhi Cui,Zhong Liu,Wu Li
In view of the composition characteristics of lithium, calcium, and bromine rich in Nanyishan oilfield water of the Qaidam Basin, Qinghai Province, the phase equilibrium relationships of quaternary system LiBr–NaBr–KBr–H2O and its ternary subsystems LiBr–NaBr–H2O and LiBr–KBr–H2O at 348.15 K were studied by the isothermal solution equilibrium method, and the equilibrium solid-phase crystallization regions and composition of each invariant point in each system were determined. The results show that there is no complex salt or solid solution in ternary systems LiBr–NaBr–H2O and LiBr–KBr–H2O at 348.15 K, and the phase diagram contains only one invariant point, two isothermal univariate curves, and two equilibrium solid-phase crystallization regions. The quaternary system LiBr–NaBr–KBr–H2O also has no formation of complex salt or solid solution, and the phase diagram contains only one invariant point, three isothermal univariate curves, and three equilibrium solid-phase crystallization regions. Meanwhile, the phase equilibrium relationships and change laws of each component of the above-mentioned systems at different temperatures were compared and discussed.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2023
·
IF 2.6
Miao Ma,Jidong Wang,Xiaotong Yang,Yixin Qu
In this paper, the solubility of clotrimazole, an antifungal drug, in 10 alcohols (n-propanol, iso-propanol, n-butanol, iso-butanol, sec-butanol, n-pentanol, iso-pentanol, n-hexanol, n-heptanol, and n-octanol) and 6 esters (methyl acetate, ethyl acetate, n-propyl acetate, n-butyl acetate, isopropyl acetate, and methyl propionate) was experimentally determined using a laser dynamic solubility-monitoring device in a temperature range of 283.15 to 323.15 K at atmospheric pressure. The functions of solubility versus temperature were regressed using three semi-empirical models (modified Apelblat, three-parameter van’t Hoff, and λh) and two activity coefficient models (Wilson and NRTL). The results show that all the five models can be used to correlate the solubility of clotrimazole with temperature in these solvents satisfactorily. Furthermore, the thermodynamic mixing properties (ΔmixG, ΔmixH, ΔmixS, ln(γ1∞), and H1E, ∞) were evaluated using the measured solubility values and Wilson model parameters.
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产品关联
DOI
高影响因子
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