JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Jiuyao Du,Jifeng Yuan,Jiahao Xi,Fei Huang,Jianjun Tian
Metal halide perovskite solar cells are considered as a competitive new force for next-generation photovoltaic, whereas the interfacial defect of perovskite films severely degrades the performance and stability of the devices. Herein, we introduce the 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac) ionic liquid to passivate lead-related defect on the surface of the MAPbI 2.85 Br 0.15 perovskite films. The carbonyl groups of [EMIM]Ac coordinate with the uncoordinated lead ions on the perovskite surface, and meanwhile the [EMIM]Ac ionic liquid suppresses the formation of metallic lead, which effectively reduces the nonradiative recombination and improves the working stability. As a result, the power conversion efficiency of the solar cell with [EMIM]Ac treatment is improved from 16.95 % to 19.29 %. The unencapsulated device shows good stability and retains the initial efficiency of 95 % after being exposed in ambient environment for 240 h. Therefore, this ionic liquid surface passivation proposed in this work may shed light on the development and practical application of perovskite solar cells.
✓ 已验证
DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 3.9
Balaji Panchal,Jinxi Wang,Yuzhuang Sun,Kai Bian,Cunliang Zhao,Qiaojing Zhao,Bangjun Liu
Lipase from Burkholderia species immobilized onto novel mesoporous polymeric ionic liquids (MO(Poly)C n –BLE) could be utilized as a low–cost biocatalyst for the lipase-catalyzed synthesis of free fatty acid esters from dried municipal sewage sludge. To assess this, this investigation has focused on three main parts of this process: (i) the development of a series of large surface polymer synthesis; (ii) mesoporous polymeric biocatalyst preparation using lipase from Burkholderia sp. immobilization onto MO(Poly)C n , and supports for this alongside Mesoporous polymer ionic liquid–1–bromooctane–lipase from Burkholderia sp. enzyme (MO(Poly)C 18 –BLE) were characterized using FT-IR, SEM, XPS , N 2 , and TGA ; (iii) Response surface methodology was used to determine the optimal conditions for ester production from municipal sewage sludge lipids using a central composite design. Four process variables were assessed at three levels; a total of 13 experiments were performed to study the effects of the lipids: ethanol molar ratio, catalyst concentration, reaction time, and temperature on the ester’s yield. A 91.25% ester yield was obtained under optimal conditions: a 1:12 molar ratio of municipal sewage sludge lipid to ethanol, 225 wt% MO(Poly)C 18 –BLE, 5 h reaction time, 45 ℃ reaction temperature, and a constant 150 rpm agitation. This novel biocatalyst synthesis method and ester production process from municipal sewage sludge lipids may provide ecological and economic support for industrial biodiesel production in the future.
✓ 已验证
DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2018
·
IF 2.873
Jinbo Zhao,Lili Wu,Chuanjiang Zhang,Tingxi Li,Qinglong Jiang,Feng Wang,Ping Zhao,Jong Eun Ryu,Zhanhu Guo
Petal-like Yb 3+ -Tm 3+ codoped Y 7 O 6 F 9 microparticles were achieved via ionic liquid-assisted (IL) hydrothermal process. The emission efficiency of Y 7 O 6 F 9 :Yb 3+ /Tm 3+ powders is much stronger than that of Y 2 O 3 :Yb 3+ /Tm 3+ sample. Under excitation at 980 nm with an unfocused laser beam under weak pump density of ∼0.1 W/cm 2 (pump power 10 mW), the UC emission of the sample can been seen clearly. Four emission bands at 477, 540, 647 and 692 nm are observed and correspond to the 1 G 4 state to 3 H 6 state, 1 D 2 state to 3 H 5 state, 1 G 4 sate to 3 F 4 state, and 3 F 3 state to 3 H 6 state transition of Tm 3+ ions. The enhanced UC emission is related to high crystallinity and lower effective phonon energy of oxyfluorides. The ionic liquid (IL) of [BMIM][BF 4 ] is used both as the reaction medium and the source of F − .
✓ 已验证
DOI
高影响因子
Journal of CO2 Utilization
·
2024
·
IF 7.2
Cheng Zhang,Ning Zhou,Shiting Wang,Xiaoxia Yang,Tingyan Peng,Zhifeng Dai,Feiyong Xiang,Yubing Xiong
The efficient conversion of atmospheric CO 2 into high value-added chemicals remains a persistent challenge. In this study, a novel strategy for the fabrication of triazine- and amino-functionalized poly(ionic liquid)s (PILs) was reported. By virtue of the rich nitrogen species, the newly-developed PILs possessed great potential in CO 2 conversion to produce high-value chemicals. The systematic investigation illustrated that rich-nitrogen PILs could promote the cycloaddition reaction of CO 2 and epoxides through the intramolecular synergy of multiple active sites. Excellent conversion and selectivity were achieved under the mild conditions without any co-catalysts and solvents. In addition, PIL heterogeneous catalysts could be easily recovered and reused at least several times without obvious loss in activity. The density functional theory calculation demonstrated that the superior catalytic activity of rich nitrogen PILs was attributed to the synergistic effect of hydrogen bond donor and triazine ring in the catalytic process. Our finding thus presents a versatile platform for fabricating multi-functional heterogeneous catalysts for efficient CO 2 conversion.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Xu-Hui Li,Yan-Hong Li,Yuan-Yuan Cui,Cheng-Xiong Yang
Herein, a novel ionic liquid doped magnetic microporous organic network (IL-MMON) with abundant electrostatic and ion exchange sites was synthesized for the first time for highly efficient and selective magnetic solid-phase extraction (MSPE) of polar phenoxycarboxylic acid herbicides (PCAs) from complex vegetable samples. The prepared IL-MMON exhibits large specific surface area, rapid magnetic response, good stability and ample PCAs binding sites. The extraction efficiencies can be reasonably regulated by tuning the doping ratios of IL. The established method has wide linear ranges (1–1000 μg L −1 ), low limits of detection (0.3–1.3 μg L −1 ), large enrichment factors (94.6–99.9), less adsorbent consumption (3 mg), short extraction time (8 min), good recovery (80.9–105.8 %), and insignificant matrix effect (89.2–108.5 %). The experimental and DFT analyses revealed extraction mechanisms include electrostatic attraction, ion exchange, and π-π interactions. This study shows considerable potential of IL-MMON and may open up a new way for synthesizing IL-MMON in sample pretreatment
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 33
·2316788
·
IF 18.5
Mingyang Zhong,Yang Wang,Yihua Xie,Shouyi Yuan,Kai Ding,Elijah J. Begin,Yingjie Zhang,Junwei Lucas Bao,Yonggang Wang
Owing to the intrinsically high safety, low cost, natural abundance, and high energy density of Zn metal, aqueous Zn ion batteries (AZIBs) have become a promising candidate for large-scale energy conversion and storage. However, the practical application of AZIBs is hampered by the severe Zn dendrites growth and the poor low-temperature performance due to the elevated freezing point of aqueous electrolyte. Herein, the study proposes a new kind of room-temperature liquid Zn salt, which is called Zn coordinated ionic liquid (i.e., (EMIM) 5 Zn(OTF) 7 ), for all-temperature AZIBs. The aqueous electrolyte containing 0.261 mol kg −1 (EMIM) 5 Zn(OTF) 7 in Ethylene Glycol (EG) / H 2 O (6:4) exhibits ultralow freezing point below −100 °C. The liquid Zn salt and EG molecules not only modulate the solvation structure of Zn 2+ ion, reducing the coordinated H 2 O in the first solvation sheath, but also suppresses the parasitic side reaction. As a proof of concept, Zn || Zn symmetric cells and Zn || PANI full cells with the designed electrolyte achieve improved cycling stability and can operate under wide temperature (from −40 to 60 °C). Even with high Zn utilization ratio of 40%, long cycle life over 70 times with capacity retention of 80% is achieved.
✓ 已验证
产品关联
DOI
高影响因子
ACS Catalysis
·
2025
·
IF 13.1
Shilun Wang,Wei Peng,Heliang Ma,Xingdi Pan,Yao Shen,Jingkai Zhao,Jiexu Ye,Qiaoli Wang,Pengfei Xie,Shihan Zhang,Xiang Gao
The electrocatalytic reduction of carbon dioxide (CO2RR) by copper oxide-based materials is conducive to the formation of high value-added products, but their activities and selectivities remain unsatisfactory. Organic ligand modification is a promising strategy to achieve a high CO2RR activity. Here, the modification of Cu2O with 1-butyl-3-methylimidazolium chloride (Bmim-Cu2O) enhanced the adsorption of reaction intermediates and improved the stability of the catalyst in the CO2RR, which displays a high Faradaic efficiency of ≈85% to C2+ products with a current density as large as ≈352.5 mA cm–2. In situ characterization reveals a stronger *CO signal with bridge configuration and a stronger *OCCHO signal over Bmim-Cu2O than unmodified Cu2O and can improve the stability during electrochemical CO2 reduction. Density functional theory calculations show that local molecular modulation can effectively regulate the electronic structure of Cu2O and enhance the adsorption of *CO and *CHO intermediates through the stabilization of a noncovalent interaction, which can greatly promote the asymmetric *CO–*CHO coupling in the electrochemical reaction process.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 32
·期 4
·2106341
·
IF 18.808
Chao Chen,Wu Bin Ying,Jiayi Li,Zhengyang Kong,Fenglong Li,Han Hu,Ying Tian,Do Hwan Kim,Ruoyu Zhang,Jin Zhu
Ionic skin (I-Skin) has the advantage of feasible compatibility with biological systems. Nevertheless, developing a stable and durable ionic skin is challenging. Here, an ionic polyurethane (i-PU) is synthesized, which is capable of self-healing and able to lock the ionic liquids (ILs). In detail, an ionic chain extender containing an ammonium cationic group is synthesized, followed by the polymerization to obtain the target i-PU. Through electrostatic interaction and chain diffusion, the i-PU can be fully self-healed at room temperature within 400 min. Afterward, low contact angle (37°) of the i-PU against IL and the density functional theory (DFT) calculation prove their good compatibility and strong interaction, originating from the electrostatic interaction. The Raman intensity map shows the reversible process of the enrichment and restoration of ionic concentration on the i-PU/IL surface when external pressure is applied or released, proving stable binding of ions by ionic polymer chains. Lastly, the self-healing I-Skin based on the i-PU/IL is fabricated with a wide range of pressures (0–120 kPa), fast response time (32 ms), excellent antifatigue property (2% attenuation after 1000 cycles), and remarkable sensitivity (52.4 kPa –1 ).
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Tianyue Tan,Le Yao,Xiwei Guo,He Zhu,Qi Zhang,Shiping Zhu
Low-surface-energy (LSE) materials, such as polytetrafluoroethylene (PTFE), are extensively used in advanced technologies like 5G chip production and base station filters, due to their hydrophobicity, chemical resistance, low friction, and excellent dielectric properties. However, their inherent chemical inertness and nonwetting nature pose significant challenges to achieving strong adhesion. In this work, we present a pressure-sensitive adhesive (PSA) tape composed of fluorinated monomers and hydrophobic ionic liquids, synthesized through a one-step, scalable process. This adhesive demonstrates an impressive bond strength of 1700 N/m on PTFE, significantly outperforming existing adhesives for LSE substrates. The enhancement arises from the strategic incorporation of ion-dipole interactions between the polar –CF3 groups in the fluorinated monomers and the ionic liquid cations, which create sacrificial bonds to improve cohesion and energy dissipation. Remarkably, this adhesive requires no surface pretreatment, maintains high transparency, and demonstrates stable adhesion even under high humidity. This work addresses a critical gap in adhesion technology for LSE materials, offering a scalable and versatile solution with diverse applications in advanced electronics, aerospace, and other industries demanding high-performance adhesives.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Joule
·
2022
·
IF 46.048
Lingfeng Chao,Yingdong Xia,Xiaozheng Duan,Yue Wang,Chenxin Ran,Tingting Niu,Lei Gu,Deli Li,Jianfei Hu,Xingyu Gao,Jing Zhang,Yonghua Chen
Direct and stable α-phase formation of formamidinium lead triiodide (FAPbI 3 ) perovskite serves as an indispensable prerequisite for constructing stable and efficient perovskite solar cells. However, the α-phase formation is highly limited by molecular additives. Here, we report a strategy for directly fabricating stable α-phase of FAPbI 3 perovskite by controlling the precursor solution on the molecular level using methylammonium acetate (MAAc) ionic liquid. We found that a strong interaction between Ac − and Pb 2+ via C=O···Pb chelation enables the relaxation of Pb–I bonds and thus allows the effective insertion of formamidinium iodide (FAI) into soft Pb–I framework. Molecular dynamics simulations also show that the precursor solution has undergone an exchange of coordination between I − and Ac − to provide the reaction sites for FAI. With a one-step, antisolvent-treatment-free, and air-processing approach regardless of humidity, the corresponding photovoltaic cell exhibits an efficiency close to 24% along with long operational stability over 1,000 h.
✓ 已验证
DOI
高影响因子
Small
·
2025
·
IF 12.1
Lu Han,Cancan Shan,Mei Cui,Rongxin Su,Renliang Huang
Ionic conductive hydrogels have attracted significant attention as wearable sensors due to their intrinsic flexibility, biocompatibility, and excellent sensing properties. Nevertheless, their practical applications in underwater environments are limited by challenges such as hydrogel swelling and ionic components leaching. Herein, a hydrophobic ionic liquid (IL)-mediated molecular engineering strategy is presented to fabricate underwater-stable conductive hydrogels integrated with anti-swelling and adhesion properties. The strategy utilizes a DMSO-IL binary solvent that exploits differential polymer-water affinity to drive phase separation. Notably, hydrophobic IL enhances phase separation through multiple interactions with hydrophilic groups while constructing a bicontinuous conductive network within the hydrogel. The strategic incorporation of poly(vinyl alcohol) (PVA) increases the cross-linking density, enhancing the mechanical and anti-swelling performance of the hydrogel. The fabricated hydrogels are utilized as wearable sensors featuring reliability and wide sensing ranges for underwater communication and human motion detection. The hydrogel sensor could withstand 400 stretching-releasing cycles and 1 month of immersion in water, with negligible performance change. This molecular design strategy advances the development of durable ionic conductive hydrogels for underwater electronics, addressing key limitations in underwater sensors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2016
·
IF 4.035
Xue Sun,Yuting Qian,Yajie Jiao,Jiyang Liu,Fengna Xi,Xiaoping Dong
Despite complex molecular and atomic doping, efficient post-functionalization strategies for graphene quantum dots (GQDs) are of key importance to control the physicochemical properties and broaden the practical applications. With ionic liquid as specific modification agents, herein, the preparation of ionic liquid-capped GQDs (IL-GQDs) and its application as label-free fluorescent probe for direct detection of anion were reported. Hydroxyl-functionalized GQDs that could be easily gram-scale synthesized and possessed single-crystalline were chosen as the model GQDs. Also, the most commonly used ionic liquids, water-soluble 1-butyl-3-methyl imidazolium tetrafluoroborate (BMIMBF 4 ) was chosen as the model IL. Under the ultrasonic treatment , BMIMBF 4 easily composited with GQDs to form IL-GQDs. The synthesized IL-GQDs were characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and fluorescence (FL) spectrum. After successful combination with IL, the excitation-independent photoluminescence behavior of GQDs presented almost no change, whereas, the anion responsiveness of IL-GQDs drastically improved, which afforded the IL-GQDs a sensitive response to Fe(CN) 6 3− . Based on the strong fluorescence quench, a facile and sensitive detection of Fe(CN) 6 3− was achieved. A wide linear range of 1.0×10 −7 to 2.5×10 −3 mol l −1 with a low detection limit of 40 nmol l −1 was obtained. As the composition and properties of IL and GQDs could be easily tuned by varying the structure, ionic liquids-capped GQDs might present promising potential for their applications in sensing and catalysis.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）