CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lei Gao,Yuanyuan Zhao,Yijie Chang,Kuidong Gao,Qiurui Wang,Qiang Zhang,Qunwei Tang
The presence of defects and residual tensile strain in perovskites has a significant and deleterious impact on the efficiency and stability of all-inorganic perovskite solar cells (PSCs). Here, dimethyl sulfoxide (DMSO) with strong polarity and high boiling point is introduced into the PbBr 2 precursor to delay the crystallization of PbBr 2 , leading to the formation of high-quality PbBr 2 films by delaying the solution reaching supersaturation. The formation of PbBr 2 (DMSO) adduct facilitates the complete reaction of PbBr 2 with CsBr via intramolecular exchange, thus preventing the formation of impurity phases such as CsPb 2 Br 5 . As a result, the defect density of CsPbBr 3 films decreased by 33% due to the improved phase purity, thicker films, larger grain sizes, and reduced grain boundaries. The small porosity of PbBr 2 film combined with a more complete phase-conversion process results in an expanded perovskite film that experiences compressive strain, effectively compensating for the tensile strain generated during annealing and thereby achieving the goal of strain relaxation. The optimized DMSO-based device, which exhibits compressive strain and minimal defects, achieves a remarkable efficiency of 10.11% with an open-circuit voltage of up to 1.611 V. Additionally, the unencapsulated PSC demonstrates excellent stability under 80% relative humidity and 80 °C over 30 days.
研究领域:
材料科学
·
能源科学
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DOI
高影响因子
Marine Drugs
·
2015
·Vol. 13
·期 4
·2465-2487
·
IF 2.853
Chang-Jing Wu,Le Yi,Cheng-Bin Cui,Chang-Wei Li,Nan Wang,Xiao Han
Introduction of neomycin-resistance into a marine-derived, wild-typePenicillium purpurogenumG59 resulted in activation of silent biosynthetic pathways for the secondary metabolite production. Upon treatment of G59 spores with neomycin and dimethyl sulfoxide (DMSO), a total of 56 mutants were obtained by single colony isolation. The acquired resistance of mutants to neomycin was testified by the resistance test. In contrast to the G59 strain, the EtOAc extracts of 28 mutants inhibited the human cancer K562 cells, indicating that the 28 mutants have acquired the capability to produce bioactive metabolites. HPLC-photodiode array detector (PDAD)-UV and HPLC-electron spray ionization (ESI)-MS analyses further indicated that diverse secondary metabolites have been newly produced in the bioactive mutant extracts. Followed isolation and characterization demonstrated that five bioactive secondary metabolites, curvularin (1), citrinin (2), penicitrinone A (3),erythro-23-O-methylneocyclocitrinol (4) and 22E-7α-methoxy-5α,6α-epoxyergosta-8(14),22-dien-3β-ol (5), were newly produced by a mutant, 4-30, compared to the G59 strain. All1–5were also not yet found in the secondary metabolites of other wild typeP. purpurogenumstrains. Compounds1–5inhibited human cancer K562, HL-60, HeLa and BGC-823 cells to varying extents. Both present bioassays and chemical investigations demonstrated that the introduction of neomycin-resistance into the marine-derived fungal G59 strain could activate silent secondary metabolite production. The present work not only extended the previous DMSO-mediated method for introducing drug-resistance in fungi both in DMSO concentrations and antibiotics, but also additionally exemplified effectiveness of this method for activating silent fungal secondary metabolites. This method could be applied to other fungal isolates to elicit their metabolic potentials to investigate secondary metabolites from silent biosynthetic pathways.Keywords:Penicillium purpurogenumG59;marine-derived fungus;neomycin resistance;DMSO;antitumor activity;fungal metabolite production
研究领域:
微生物学
·
药物化学
·
分子生物学
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DOI
PubMed
高影响因子
Materials Today Energy
·
2025
·
IF 8.6
Dandan Chen,Fengxia Yang,Mei Yang,Wenming Chai,Weidong Zhu,Chunfu Zhang,Yun Zhao,Yan Li
Perovskite and Cu(InGa)Se 2 (CIGS) tandem solar cells are emerging as an exciting prospect to achieve high-performance, cost effective, and lightweight all-thin-film photovoltaics, wherein perovskite solar cells (PSCs) fabricated using high-quality wide-bandgap perovskite films are critical to realize the high-efficiency PSC/CIGS tandem solar cells. Herein, a stepwise dimethyl sulfoxide (DMSO) solvent-annealing strategy is proposed to fabricate wide-bandgap (1.68 eV) Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 Br 0.6 films via stepwise heating recipe, that is annealed at 100 °C firstly and then 80 °C. This modified solvent-annealing method makes for the Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 B r0.6 films with full coverage, large grains, improved crystallinity, and free of impurities. Opaque PSCs with the desired Cs 0.15 FA 0.65 MA 0.2 PbI 2.4 B r0.6 films exhibit a champion power conversion efficiency (PCE) of 21.66 % and excellent stability. Furthermore, using an optimized IZO transparent electrode, the semitransparent PSCs with an impressive PCE of 21.26 % and a high bifaciality factor of 92.2 % are fabricated. These PSCs can further enable the four-terminal (4-T) PSC/CIGS tandem solar cells with a summed PCE of 29.36 %, surpassing of most the similar tandem solar cells reported earlier.
研究领域:
材料科学
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光伏技术
·
能源工程
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产品关联
DOI
高影响因子
AICHE JOURNAL
·
2024
·
IF 3.5
Zhengrun Chen,Hui Xu,Xiaoteng Zang,Hong Meng,Hongwei Fan,Yingzhou Lu,Chunxi Li
Calcium carbide (CaC 2 ) is a valuable carbanion resource, but the reactivity is highly restricted by its insolubility and super-basicity. For this, the effect of solvent and mechanical forces on its reactivity is investigated extensively here via quantum chemistry calculation, molecular dynamic simulation, and experiments. The dissolution free energy of CaC 2 in over 100 solvents has been evaluated. DMSO, CH 3 CN, and DMF can enhance the negative potential and reactivity of CaC 2 , especially DMSO. The electrostatic interaction of CaC 2 -solvent mainly originates from the interaction between Ca 2+ and O or N atom. The increased electron density around C 2 2 - $$ {\mathrm{C}}_2^{2\hbox{-} } $$ is mainly ascribed to the electron transfer from solvent. DMSO can change the ionic orientation of CaC 2 interface. The solvent may be deprotonated by C 2 2 - $$ {\mathrm{C}}_2^{2\hbox{-} } $$ , compromising the solvent stability. The interface interaction of CaC 2 with DMF and DMSO is verified through FT-IR, and the lattice structure of CaC 2 is lost virtually after 0.5 h mechanical milling.
研究领域:
化学
·
材料科学
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产品关联
DOI
高影响因子
Solar RRL
·
2025
·
IF 4.7
Zixiang Zhou,Suxia Liang,Jiahong Li,Kai Song,Xiaogeng Gu,Ting Yan,Yunlei Jiang,Tianyu Yu,Cang Liang,Renjie Hua,Lei Shi,Luping Lyu,You Song,Shifeng Deng,Wenzhen An,Yuan Dong
Vacuum-assisted crystallization is a promising strategy for large-area perovskite film formation, but the role of solvent environment in intermediate phase evolution under vacuum-assisted crystallization remains underexplored. In this work, two common mixed solvent systems—NMP/DMF and DMSO/DMF were systematically compared, aiming at investigating how their coordination characteristics affect film formation outcomes during vacuum-assisted crystallization. NMP/DMF results in a distinct intermediate phase and ultimately leads to perovskite films with uniform grains, smooth surface, lower defect densities, and enhanced optoelectronic properties compared to those obtained using DMSO/DMF. The optimized perovskite photovoltaic modules achieved a champion power conversion efficiency of 19.14% (active area: 96.5 cm 2 ). This study highlights the strong correlation between solvent coordination and crystallization behavior, providing useful insights for scalable production of high-performance perovskite modules via vacuum-assisted crystallization.
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产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 53
·48043-48048
·
IF 3.289
Ying Duan,Ye Chen,Qing Wen,Tigang Duan
We have developed a simple and effective way to fabricate Ti/Sb–SnO2 electrodes by electrodeposition from a dimethyl sulfoxide solution. The electrode surface exhibits a distinct cauliflower-like structure with a small grain size. Its electrochemical properties have been evaluated by electrochemical impedance spectroscopy and accelerated service life tests; furthermore, the results were compared with those obtained for an electrode prepared from aqueous solution. The DMSO-prepared electrode has low charge transfer resistance (22.71 vs. 107.60 Ω) and high stability (59.3 vs. 2.8 h). Moreover, its ability to electrochemically decolorize methyl orange and rhodamine B is greatly improved.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2024
·Vol. 171
·期 4
·040513
·
IF 3.1
Yuxiang Zhou,Hailin Shen,Xiaohui Chen,Changhai Liu,Xuelin Shan,Wenchang Wang,Zhidong Chen
Electrochemical energy storage devices are of interest, especially aqueous sodium ion batteries (ASIBs), due to their safety, low-cost, and environmental friendliness. However, ASIBs suffer from poor cyclic stability and a narrow electrochemical window, which hinders their large-scale application. Compared to the traditional dilute saline electrolytes, high concentration electrolytes show a wider potential window. In this study, we designed a novel NaClO4-H2O/DMSO-Urea hybrid electrolyte to suppress these problems, in which DMSO and Urea create a synergistic effect. The formation of hydrogen bonds between DMSO and H2O reduced water activity, thereby suppressing the hydrogen evolution reaction. The addition of DMSO resulted in the reduction from −1.2 to −1.6 V for the hydrogen evolution potential. Therefore, we were able to expand the electrochemical window on the basis of reducing the concentration of sodium salts. Moreover, the addition of Urea facilitated formation of a stable solid electrolyte interface on the electrode surface, which improved the cycling stability of NVP/C (Na3V2(PO3)4/C) symmetric cell which exhibited a specific capacity of 59.7 mAh g−1 with the retention capacity of 80.1% after 200 cycles at 1 C. This work points out a promising strategy for developing stable and wide voltage aqueous electrolyte.
研究领域:
电化学储能
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材料科学
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能源化学
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无机非金属材料
·
界面化学
✓ 已验证
DOI
高影响因子
PLoS One
·
2025
·Vol. 20
·期 6
·e0325247
·
IF 2.6
Haiyan Liu,Anning Wang,Xiaoyi Chen,Sen Hou,Anzhang Li
Glabridin is widely used as a whitening agent in cosmetics, but its cytotoxicity remains a key concern in safety evaluations. In typical cytotoxicity assays, glabridin is dissolved in dimethyl sulfoxide (DMSO) before being added to the cell culture medium because it is insoluble in water. However, our study revealed that when the DMSO solution of glabridin was mixed with cell culture medium, glabridin was rapidly released due to its poor solubility in the DMSO/water mixture. The released glabridin rapidly formed crystals, which failed to enter cells. Consequently, the whitening efficacy of glabridin was reduced. Moreover, the glabridin crystals produced higher cytotoxicity, possibly due to the physical damage caused by their sharp crystalline structures. However, encapsulating glabridin in cyclodextrin (CD) can address these challenges, offering a better approach for glabridin cytotoxicity assays. The CD encapsulation method, compared to the DMSO solution method, not only decreased the cytotoxicity of glabridin but also increased its whitening efficacy. By comparing the efficacy of glabridin dissolved in DMSO and encapsulated in CD, we discovered that the reported cytotoxicity of glabridin may have been overestimated in previous cytotoxicity studies which used DMSO as a solvent, while its whitening efficacy may have been underestimated. These findings not only offer new insights for in vitro studies of glabridin-like reagents, but also facilitate the development of safer and more effective whitening products.
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产品关联
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2020
·Vol. 9
·期 3
·2001435
·
IF 8.286
Bo Zhou,Dong Ding,Ye Wang,Shaofan Fang,Zexiang Liu,Jian Tang,Henan Li,Haizhe Zhong,Bingbing Tian,Yumeng Shi
All-inorganic cesium lead bromide perovskites have attracted a lot of attention because of their excellent optical properties that can potentially be applied in various optical devices. However, large-scale preparation of cesium lead bromide perovskites with outstanding optical performance is still hindered by the poor solubility of CsBr in polar aprotic solvents. In this work, a water/dimethylsulfoxide (DMSO)/dimethylformamide (DMF) system is demonstrated for the synthesis of inorganic cesium lead bromide perovskites, where the introduction of water can effectively address the dissolution issue of Cs + ions. Large-scale synthesis of pure-phase emissive Cs 4 PbBr 6 with a product yield of up to 73% is achieved and the photoluminescence quantum yield of resulting product reaches as high as 76%. The origin of the light emission is further revealed by the photoluminescence evolution of the colored Cs 4 PbBr 6 single crystals. Furthermore, reversible phase transitions between Cs 4 PbBr 6 , CsPbBr 3 and CsPb 2 Br 5 are achieved by changing solely the water content, which paves the way for the recycle of the mother solution of Cs 4 PbBr 6 without generation of additional hazardous waste. The three-solvent-based synthetic approaches enable an economical, robust, and large-scale production for all-inorganic cesium lead bromide perovskites.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
高影响因子
POLYMER
·
2015
·
IF 3.562
Yanfei Wang,Wei Liu,Gaoming Mo,Ruoyu Zhang
The gelation process in Polyacrylonitrile (PAN)/Dimethyl Sulfoxide (DMSO)/Water (H 2 O) systems was studied by rheology. Chambon–Winter criterion was used to detect the critical gelation temperature variation. Interestingly, we found that the loss tangent coincided at two different temperatures in different frequency periods with the temperature decreased. By using the physical and mathematical analysis, we were able to tell that the first one was the critical sol–gel transition temperature, which appeared at higher temperatures under lower frequencies; and the second point was an indication of another self-similar structure, which appeared at lower temperatures under higher frequencies. We analyzed the coarsening mechanism in the gelation process of ternary blends, and considered that the volume growth of the physical linkage can interpret this unusual phenomenon. A ‘Joint Point to Joint Section’ model, similar to nucleation process, was proposed to interpret the mechanism of the growth of the physical linkages. Based on the above data, phase boundaries of critical gel and the second self-similar structure can be drawn. As the PAN or water content increased, both transition temperatures increased, which indicated the non-solvent water favored the aggregation of PAN molecules and promoted the forming of the second self-similar structure.
研究领域:
材料科学
·
高分子化学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2016
·
IF 1.835
Hui Ding,Yujie Gao,Jiaqi Li,Jinlong Qi,Hang Zhou,Shejiang Liu,Xu Han
The vapor–liquid equilibrium (VLE) data for the binary system isopropyl alcohol + dimethyl sulfoxide (DMSO), isopropyl acetate + DMSO, and ternary system isopropyl alcohol + isopropyl acetate + DMSO were measured with a VLE modified Othmer still at 101.3 kPa. The experimental data were proved to be thermodynamically consistent when the point-to-point consistency test of Van Ness test was applied. The binary experimental data were correlated with the nonrandom two-liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) activity coefficient models. Then, the ternary VLE data were predicted with the obtained binary interaction parameters. The results indicate that the values of equilibrium temperature and vapor mole fraction calculated by the NRTL, Wilson, and UNIQUAC models are in good agreement with the experimental data. When the mole ratio of the binary azeotrope to DMSO was 1:1.5, the binary azeotrope of isopropyl alcohol and isopropyl acetate was eliminated. Therefore, DMSO is a potential extractive agent to separate the azeotrope by extractive distillation.
研究领域:
化学工程
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Ge Li,Bingtao Zhang,Zhe Tan,Ling Jiang,Zhikan Yao,Lin Zhang
Cellulose, a sustainable raw material, holds great promise as an ideal candidate for membrane materials. This work focused on establishing a green route for fabricating cellulose nanofiltration membranes by reusing a binary solvent of a mixture of ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate and dimethyl sulfoxide (DMSO). The rheological and thermodynamic properties of cellulose solutions were thoroughly investigated to gain fundamental insights into cellulose membrane formation using a mixture solvent. The morphologies and separation performances of the cellulose membranes were also studied. Based on these results, we successfully developed a cellulose membrane with a remarkable water flux of 101.8 L/m2·h, and the rejections for both Congo Red and Evans Blue were higher than 99.7%. Furthermore, the cellulose membrane demonstrated excellent antifouling performance and stability in long-term operation. Moreover, we conducted an attempt on the recycling and reuse of IL and DMSO, revealing that the structure and separation performance of the cellulose membrane produced using the recovered solvent were comparable to those of the membrane obtained using the original solvent. These results highlighted a sustainable approach to fabricating high-performance cellulose membranes.
研究领域:
材料科学
·
环境工程
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）