LANGMUIR
·
2026
·
IF 4.4
Yimin Hu,Meiling Tang,Jin Ma,Tao Wei,Ming Shen
Hydrogels are regarded as promising materials for flexible electronics and wearable sensors. However, it remains a significant challenge to simultaneously achieve high mechanical robustness, environmental tolerance, high electrical conductivity, antibacterial properties, self-healing ability, strong adhesion, and multimodal sensing performance in a single system. Addressing this, the multifunctional hydrogel (denoted as PCET) was developed by integrating polyacrylamide (PAM), biocompatible natural polymer cationic hydroxypropyl trimethylammonium guar gum (CGG), the ionic liquid 1-ethyl-3-methylimidazolium bromide ([Emim]Br), and natural polyphenol tannic acid (TA) through a synergistic cross-linking strategy. The PCET hydrogel demonstrated ionic conductivity (0.8 S/m) and functioned as a multimodal sensor, with strain sensitivity (GF = 1.65), reliable cycling stability, and responsive detection of pressure and temperature (TCR = 0.51%/°C). Furthermore, it exhibited strong substrate adhesion (∼50 kPa) and supported real-time motion monitoring, handwriting recognition, and electrocardiogram detection. [Emim]Br acted as a multifunctional agent that enhanced mechanical properties (toughness: 441 kJ·m–3, strength: 124 kPa, elongation: 840%) and conferred both antifreezing (freezing point: −28.65 °C) and antibacterial capabilities. Moreover, the chemical reaction between Fe3+ and TA can promote rapid gelation. This work underscored the versatile role of [Emim]Br and provided a viable strategy for the development of multistimulus-responsive wearable sensor devices based on hydrogels.
✓ 已验证
DOI
PubMed
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Ruixia Yang,Ying Huang,Litao Ma,Youyan Wang,Lihua Ma,Ming Duan,Yan Xiong
Ionic liquids (ILs) can act as oil-displacing agents to enhance oil recovery (EOR), and understanding the interaction mechanism of ILs at the oil–water interface is therefore crucial for oil extraction. In this work, the experimental technology of surface interferometry was developed for real-time study of the macroscopic interaction between imidazolium ILs ([C12mim]Br and [C16mim]Br) and octadecane oil. By the interfacial thickness result, kinetic analysis revealed the nonequilibrium dynamic process of diffusion and arrangement for [C12mim]Br interaction but another rearrangement for ([C16mim]Br interaction. The arrangement process was indicated as the limiting step, and the rate order was [C12mim]Br < [C16mim]Br with constant value of |karr([C12mim]Br)| = 0.03 < |karr([C16mim]Br)| = 0.08. By the interfacial mass result, thermodynamic analysis revealed a Freundlich multilayer for [C12mim]Br but a Langmuir monolayer for [C16mim]Br. The interaction spontaneity was indicated as [C16mim]Br > [C12mim]Br with free energy of ΔG[C16mim]Br = –10.67 < ΔG[C12mim]Br = –0.47 kJ mol–1. In addition, molecular dynamics simulation (MDS) was employed to identify the microscopic configurations and energies for the interfacial interaction. The interaction stability was revealed to [C16mim]Br > [C12mim]Br with an energy change of ΔEint([C16mim]Br) = –147.06 kJ mol–1 < ΔEint([C12mim]Br) = –118.85 kJ mol–1 and an overlapped distance of doil–water(3[C16mim]Br) = 11.17 Å > doil–water(3[C12mim]Br) = 9.51 Å> doil–water = 8.88 Å. The interaction mechanism was illustrated by “multilayer hemimicelle stacking” model for [C12mim]Br but “monolayer micelle spreading” for [C16mim]Br. This study establishes a systematic platform for investigating the interaction mechanisms and performance of ionic liquids (ILs) at oil–water interfaces, offering critical insights for reservoir engineering and EOR applications.
✓ 已验证
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Hao Wang,Weiwei Lu,Peng Xu,Jie Luo,Kaisheng Yao,Jun Zhang,Xuefeng Wei,Shuge Peng,Haoyan Cheng,Hao Hu,Kunpeng Sun
All inorganic metal halide perovskites (MHPs) have been regarded as a new type of promising photocatalyst for the reduction of CO2. However, due to their strong ionicity and the labile surface ligands, there is still much room for improvement of the stability and efficiency of MHP photocatalysts. Here, we propose a new strategy simultaneously using ionic liquid (IL) as a surface passivation ligand and a precursor to mediate the growth and then stabilize CsPbBr3 MHPs for the photocatalytic reduction of CO2. First, the TEM and XRD results show that the prepared CsPbBr3 has a cubic morphology with the monoclinic phase when the IL of 1-octyl-3-methylimidazolium bromide ([Omim]Br) is used as the surface ligand. When the molar ratio of [Omim]Br to Pb(CH3COO)2 is optimized to 2, the photoluminescence quantum yield of the prepared CsPbBr3 can reach as high as 90.93%, suggesting the effective reduction of surface defects by the IL ligand. Importantly, the CsPbBr3 nanocrystals show high stability under the ambient stimuli of light, heat, and humidity. The subsequent FT-IR and XPS characterizations indicate that the presence of [Omim]Br on the surface of CsPbBr3 increases the Br-rich state, which accounts for the excellent optical property and stability of the CsPbBr3 nanocrystals. Finally, with the assistance of IL as the activator of CO2, the CsPbBr3 photocatalysts provide a high evolution rate of 24.56 and 6.66 μmol g–1 h–1 for CO and CH4, respectively. Multifunctional ILs as passivation ligands, reaction precursors, and CO2 activators provide an efficient pathway to fabricate stable metal halide perovskites for photocatalytic CO2 conversion.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 17
·9626-9634
·
IF 11.9
Hao Wu,Mi Wang,Wanbao Wu,De Bai,Yihong Liang,Shunyou Hu,Wen Yu,Peng He,Jiaheng Zhang
Multi-stimuli-responsive devices have attracted much attention in the field of smart windows due to their rich color-adjustable effect and high energy efficiency. However, most multi-stimuli-responsive color-adjustable devices have insufficient stability and complex preparation processes, which impede their industrialization. In this work, thermo- and electro-dual-responsive devices were fabricated by preparing thermochromic ion gel electrolytes and combining them with electrochromic films. Locating thermochromic and electrochromic materials in different functional layers reduces their mutual influence and prevents a decline in their single performances. The thermochromic ion gel electrolytes with a lower critical solution temperature (LCST) phenomenon were obtained from a simple UV-curing method with polyurethane acrylate oligomers and ionic liquids. Compared with traditional LCST hydrogels, the ion gels undergo phase transitions without a volume change, exhibit better thermal and ambient stability, and possess a wide electrochemical window. They can be widely used as electrolytes for various electrochromic materials, resulting in color-changing performance and cycling stability comparable to those of organic solution and ionic liquid electrolytes. The ion gels' LCST effect and the electrochromic layers' color-changing characteristics endow the devices with a dual-responsive feature and improved optical modulation ability. This gives the devices great application potential in smart windows and indoor decorations.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2023
·
IF 5.9
Yaxuan Wang,Jinyong Ren,Mingyu Ou,Jiahui Cui,Haocun Guan,Richeng Lian,Chuanmei Jiao,Xilei Chen
To meet the demands of reducing the serious illness caused by the growth of bacteria and the severe life-threatening due to interior fabric fire, the attention to antibacterial flame-retardant cotton fabrics has reached an unprecedented height. In this work, a simple step-by-step dip-coating method was applied for the multifunctional cotton based on epichlorohydrin-modified aramid nanofibers (AEP), ionic liquid (IL), and CuSO 4 . Cot/AEP/IL/Cu exhibited low flammability with a limiting oxygen index (LOI) improving from 18.5% to 28.5% and high flame retardancy (e.g., ∼43.7% and 41.7% decline in peak heat release rate (pHRR) and total heat release rate (THR)). Noticeably, the Cot/AEP/IL/Cu revealed conspicuous smoke suppression and toxic reduction property compared with Cot/AEP/IL (e.g., ∼77.0% decline in peak smoke release rate (pSPR) and 40.5% in total CO production (TCOP)). In addition, the antibacterial property of treated cotton was investigated by the agar diffusion plate method. Due to the presence of Cu ion, Cot/AEP/IL/Cu remarkably restrains the activity of E. coli and S. aureus. This work prepared a multifunctional cotton fabric integrated with flame-retardant, smoke suppression, toxicity reduction, and antibacterial in a straightforward way, which endows promising applications in many fields.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Fei Gao,Cailin Ji,Shougui Wang,Jipeng Dong,Changqing Guo,Yuwen Gao,Guanghui Chen
Integrating multifunctional active sites into an appropriate porous material is a promising strategy to achieve great catalytic performance for CO 2 cycloaddition . Herein, carboxy-functionalized imidazolium ionic liquid were successfully anchored onto the MCM-41 mesoporous silicates. The resultant MCM-41-Imi/COOH integrates hydrogen bond donor, Lewis base and nucleophilic ionic sites, and possesses a high surface area and mesopore structure. As-prepared catalyst achieves a good catalytic activity for CO 2 cycloaddition with propylene oxide under cocatalyst- and solvent-free conditions. Moreover, the catalyst MCM-41-Imi/COOH exhibits the good cycling stability and versatility to various epoxides . In particular, the catalyst shows a satisfactory catalytic activity for catalyzing dilute CO 2 conversion to cyclic carbonate. Furthermore, a possible reaction mechanism for the cycloaddition of CO 2 with propylene oxide over the catalyst MCM-41-Imi/COOH was proposed.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Han Sun,Shuang Wang,Yinghe Cui,Zhipeng Yong,Dan Liang,Xiaodong Wang,Xiaorui Wang,Chenglong Li,Feng Pan,Zhe Wang
Branched polymers have unique three-dimensional dendritic structures, so they have received a lot of attention in the application of high temperature proton exchange membranes . In this work, we synthesize BOPBI-X (X = 3%, 6%, 9%) membranes with different branched ratios based on the synthesis of OPBI, due to the introduction of a rigid triazine structure with a larger free volume, the membranes could absorb more phosphoric acid (PA) while maintaining sufficient mechanical strength . Among them, the BOPBI-6% membrane obtains splendid comprehensive performance, when the PA doping level (ADL) is 9.55, it achieves a proton conductivity of 99.2 mS cm −1 at 180 °C, which is 1.8 times higher than OPBI (54.8 mS cm −1 ), and it performs well in long-term oxidation stability test after 144 h, it still has a mass retention rate of 90%. For the sake of further boost the performance of the membrane, cross-linkable polymeric ionic liquid (PIL) is introduced to the system. Among them, BOPBI-PIL-30% membrane has sufficient mechanical properties (5.50 ± 0.8 MPa), and the proton conductivity (146.9 mS cm −1 ) at 180 °C is also excellent, so BOPBI-PIL-30% membrane is expected to be a promising candidate as HT-PEMs.
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS LETTERS
·
2022
·Vol. 153
·期 11
·3371-3382
·
IF 2.936
Kang Yuexin,Sun Shangde,Wang Ping
Monoricinolein (MRO) is a renewable and biodegradable surfactant derived from castor oil (CO). In this work, a novel ionic liquid (IL)-catalyzed method for selective MRO preparation by the glycerolysis of CO was investigated. Six basic ILs ([Bmim]Im, [Bmim]OH, [Bmim]DCN, [Bmim]OAc, [Emim]OAc, [Emim]Im) were screened and evaluated as homogeneous catalysts. Among the tested ILs, [Bmim]Im showed the best catalysis performance. An evaluation of the effects of reaction variables on the IL-catalyzed glycerolysis was carried out (temperature, reaction time, IL load and substrate ratio). The maximum MRO yield (75.77 ± 1.20%) and triacylglyceride (TAG) conversion (96.67 ± 0.10%) were obtained under the following optimized conditions: CO/glycerol molar ratio 1:6, IL load 10%, 180 °C, 3 h, and no water added. The results showed that the selectivity of MRO was enhanced. The activation energies (Ea) for CO conversion and formation of the MRO were 44.07 kJ/mol and 54.99 kJ/mol, respectively. Graphical Abstract
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Lihua Zhang,Hailiang Sheng,Ran Liu,Mao Yang,Yuanlong Guo,Qinqin Xu,Lijie Hu,Songmiao Liang,Haibo Xie
The design and facile preparation of water-soluble and eco-friendly polymer packaging membrane materials is a fascinating research topic, particularly in terms of the increasing concerns on potential microplastics pollution in ecosystem. In this study, taking advantages of the structural features of chitosan (CS) and betaine hydrochloride (BHC), fully bio-sourced and water-soluble poly(aprotic/protic ionic liquid)s (PAPILs) were successfully designed and prepared through the reaction of the amino groups in CS and carboxyl groups in BHC. The structure and thermo-properties of the PAPILs were elucidated by a series of characteristic methods. The rheological properties of the PAPILs aqueous solutions were also investigated. Moreover, water-soluble PAPILs membrane with a smooth surface morphology and a tensile strength of 62.9 MPa was successfully prepared. The PAPILs membrane also exhibited satisfactory biocompatibility, excellent antibacterial activities and high oxygen barrier property. Together with these outstanding material performance and functionality, as a “proof of concept”, the potential use of the PAPILs membrane as water-soluble packaging material for laundry detergent capsule and pesticide was preliminarily demonstrated. These findings provide significant insights for the design of sustainable and functional packaging materials by using natural resources.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE RESEARCH
·
2022
·
IF 2.975
Huifang Ren,Xiao-Yang Yue,Wen-Sheng Dong
We propose a new approach for the synergistically catalytic conversion of cellulose to levulinic acid (LA) in water by SO 3 H-functionalized ionic liquid (SFIL) and lanthanide chloride (LnCl 3 ). Compared with using 1-methyl-3-(3-sulfopropyl)imidazolium chloride ([MIMPS]Cl) only, the LA yield using [MIMPS]Cl and ErCl 3 increased by 14.4% and 13.6% at 50 mol% of IL and 30 mol% of IL, respectively. Moreover, the combined [MIMPS]Cl and ErCl 3 system can tolerate high concentrations of substrates and maintain high activity at eleven runs. We also investigated the effects of the cation structure of ionic liquids (alkyl chain length, hydroxyl groups on the side chains, and aromatic properties) on LA production. The observations can provide useful information for designing efficient ionic liquid catalysts for biomass utilization.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Hanyu Wang,Wenjing Zou,Yukun Ouyang,Hu Luo,Xingchong Liu,Haimin Li,Yue Lei,Yafei Ni,Yu Fu,Ding Zheng
The uncoordinated Pb 2+ and X - vacancy defects caused by the uncontrollable crystallization process are detrimental to the efficiency and stability of perovskite solar cells (PSCs). Herein, a multifunctional ionic liquid 1-butyl-3-methylimidazolium hexafluoroan (BMIMSbF 6 ) is introduced into perovskite to form an intermediate phase to induce crystal-oriented growth and passivate intrinsic defects. The results demonstrate that PbI 2 ·BMIMSbF 6 intermediate phase can delay the crystallization rate through molecular exchange and induce the crystal-oriented growth of perovskites. Moreover, by passivating uncoordinated Pb 2+ and X - vacancy defects, BMIMSbF 6 promotes the grain coarsening of perovskite and inhibits the grain boundary migration with an Urbach energy decreased by 10 meV. As a result, the PSCs with the BMIMSbF 6 additive achieves a champion power conversion efficiency (PCE) of 22.03% and improved long-term stability. In addition to comprehensively controlling the growth of perovskite, the chemically stable BMIMSbF 6 could prevent water infiltration to protect the perovskite and enhance its humidity stability. Thus, the PSCs with BMIMSbF 6 additive maintains 85% of its initial PCE after aging at 45% relative humidity for 500 h. This work highlights the multifunctional roles of BMIMSbF 6 to induce crystal-oriented growth, passivate intrinsic defects, and enhance humidity stability to form efficient and stable PSCs.
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2022
·
IF 5.089
Qian Wang,Xuan Guo,Meiling Ge,Limei Sheng,Junkai Wang,Fu Yang,Luqiang Jia,Agen Huang,Rong Guo
The catalytic performance of immobilized enzyme is greatly influenced by functional support, which attracts growing interest for designing supports to achieve their promotive catalytic activity. In this work, a series of functional mesoporous poly(ionic liquid)s (PILs) with balanced anions and tailored surface functional organic groups were designed and constructed. Then, Porcine pancreatic lipase (PPL) immobilized mesoporous PILs biocatalysts were synthesized and carefully characterized. Through regulating anions (Br − , SO 4 2− , OH − ) along with functional groups (carboxyl, hydroxy, epoxy) of PILs, the sample PIL-COOH-S bearing carboxyl group and bisulfate ion affords improved affinity and open conformation of immobilized PPL, thus contributing to the highest biodiesel yield of 96.6% via esterification of soybean oil within 24 h at 40 °C, much outperforming that of bare PPL (66.3%) and commercial Novozym 435 (68.5%). The activity recovery of PPL 0.2 @PIL-COOH-S reached to 130% and could be reused for 8 cycles in transesterification with a maintained 82% initial activity. Finally, molecular dynamic simulation (molecular docking) was further conducted to identify the origin of PILs functions. Thus, the above devisable PILs provide a green strategy for lipase immobilization and show a synergistic effect to promote biodiesel production with high activity and stability.
✓ 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）