CARBON
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2025
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IF 11.6
Chuanbing Li,Xuming Yao,Da Li,Fei Zhang,Junzhen Chen,Jinyi Wu,Lei Guo,Weizhao Zhang,Ying Wu,Qingbin Zheng
The rapid development of next-generation flexible electronic devices and soft robotics urgently requires highly stretchable and conductive electromagnetic interference (EMI) shielding materials to address interference from electromagnetic radiation. Herein, we develop highly stretchable and electrically conductive EMI shielding hydrogels based on three-dimensional graphene skeleton/polyacrylamide/LiCl (3DGS/PAM) hydrogels. The resultant 3DGS/PAM nanocomposite hydrogels exhibit superior stretchability (610 % strain), high conductivity (9.3 S/m), outstanding EMI shielding efficiency (EMI SE) (48.4 dB), excellent freezing resistance (-25 °C), and moisturizing retention properties (118 wt% after 10 days) due to the unique recoverable conductive network and movable ions. Benefitting from the excellent synergistic effects of 3DGS, lithium chloride, and PAM hydrogels, the 3DGS/PAM nanocomposite hydrogels maintain stable electrical conductivity ( Δ R / R 0 < 115 %) after 1000 stretching-releasing cycles with 200 % strain. The interconnected conductive network and water molecules endow the hydrogels with excellent EMI shielding stability, maintaining an EMI SE value of 34 dB at a strain of 50 % and 20.5 dB at a large strain of 200 %. With superior conductivity, EMI shielding performance, outstanding stretchability, and reliability, the 3DGS/PAM nanocomposite hydrogels demonstrate promising potential to design stretchable EMI shielding materials for flexible devices and wearable electronics.
研究领域:
材料科学
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纳米技术
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电磁干扰屏蔽
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高分子科学
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柔性电子
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2025
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IF 2.1
Hongyu Qi,Jiaxin Han,Lin Xing,Jia Xu,Yushan Liu,Xun Wang,Tao Zhang,Yong Ma,Lingzong Meng
The phase equilibrium of the quinary system LiCl–Li2SO4–LiBO2–Li2B4O7–H2O at 323.15 K was studied with an isothermal dissolution method. The dry-salt phase diagram of the quinary system consists of one invariant point saturated with LiCl·H2O, Li2B4O7·3H2O, and LiBO2·2H2O, three univariant curves, and three crystallization regions saturated with Li2SO4·H2O corresponding to LiCl·H2O, Li2B4O7·3H2O, and LiBO2·2H2O. The J(H2O), J(Li2SO4), refractive index, and pH value change gradually with the changing concentration. Combining the equilibrium constants for boron-containing species, the pH values, and concentration of total boron, the boron-containing species distributions in the mixed solution in the system were calculated. The concentrations of B3O3(OH)52– and B5O6(OH)4– are very low and can be neglected. The boron-containing species distributions are mainly affected by m(LiCl) in the solution but less by m(Li2SO4). The results of the phase diagram and boron-containing species distribution in the quinary system can provide fundamental thermodynamic data for the extraction of lithium borate from brines.
研究领域:
物理化学
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化学热力学
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无机化学
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溶液化学
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材料科学
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产品关联
DOI
高影响因子
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
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2016
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IF 2.129
Zhangyang Kang,Maogang He,Guangxuan Lu,Ying Zhang
Differential scanning calorimetry analysis of the various compositions in the (LiCl+CsCl) and (LiCl+KCl+CsCl) systems have been performed, and the composition of 55.5:19.5:25 mol% and 263 °C were considered as a eutectic point in the (LiCl+KCl+CsCl) ternary system . A careful evaluation and optimization of our measured phase diagram data and all the other available experimental data for the (LiCl+CsCl) and (LiCl+KCl+CsCl) systems were performed to obtain optimized model parameters for all solid and liquid phases . A thermodynamic data set has been formed and may be used to calculate phase equilibrium and all thermodynamic properties in the (LiCl+KCl+CsCl) ternary system . A density model based on the Modified Quasichemical Model has been employed to evaluate all available density data of the (LiCl+KCl), (KCl+CsCl), (LiCl+CsCl) and (LiCl+KCl+CsCl) melts, and optimized parameters for the density model generated a useful database that can be used to complete a prediction for the density of all liquid phases .
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Wenjiao Ge,Shan Cao,Yang Yang,Orlando J. Rojas,Xiaohui Wang
Ionically-conductive and stretchable hydrogels are ideally suited for the synthesis of flexible electronic devices. However, conventional hydrogels undergo dehydration at ambient conditions and freeze at subzero temperatures, limiting their functions. As an alternative to counteract these limitations, we propose double network hydrogels that are easily synthesized by a one-step acrylamide (AM) polymerization in the presence of cellulose nanofibrils (CNF) and LiCl. Following molecular dynamics simulation, thermogravimetric and spectroscopic (Raman and low-field nuclear magnetic resonance) analyses, we show that LiCl increases the interactions between the colloidal phase and water molecules, ensuring water holding capability at atmospheric conditions and endowing the hydrogels with freezing tolerance over a wide range of temperatures, from −80 to 25 °C. The synergy between CNF and LiCl is critical in maintaining the mechanical strength of the system, which simultaneously displays high stretchability (~748%) and ionic conductivity (2.25 S/m) at low temperatures (−40 °C). As a proof of concept, a flexible supercapacitor comprising the proposed electrolyte hydrogel is demonstrated as a reliable, low-temperature electrochemical device. Our results provide the basis for simple and universally applicable systems that fulfill the requirements of flexible electronics under extreme cold conditions.
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
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2019
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IF 2.961
Meilan Hu,Chenxing Liao,Libin Xia,Weixiong You,Zhifeng Li
A series of Mn 4+ doped La 2 MgTiO 6 red-emitting materials with double-perovskite structure and high efficient red emission have been successfully prepared by molten salt assisted method which LiCl acting as molten salt at a relatively low temperature. The effects of the reaction temperature and the usage amounts of LiCl on the structure and photoluminescence properties of phosphors were studied. Experimental results indicate that the synthesis temperature of the Mn 4+ -doped La 2 MgTiO 6 by molten salt method is only 800 °C while the traditional solid phase method requires 1350 °C. The morphology and particle size of phosphors can be well controlled by adjusting the reaction temperature and the amount of molten salt. The thermal stability and quenching mechanism of phosphors were studied by temperature dependent emission spectra , which demonstrated that LiCl is benefit to improve the thermal stability of the Mn 4+ activated La 2 MgTiO 6 phosphors.
研究领域:
材料科学
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发光材料
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无机化学
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固态物理
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Zhengyin Yao,Jiaqing Zhang,Dongrong Yang,Da Zhang,Bin Yang,Feng Liang
Hybrid solid electrolyte (HSE) exhibits potential as a solid electrolyte due to its satisfactory Li+ conductivity, superior flexibility, and optimal interface compatibility. However, the inadequate wettability of the Li/HSE interface leads to significant contact impedance, thus fostering the formation of Li dendrites and limiting their practical applicability. Here, a straightforward strategy to enhance the interfacial wettability between Li and HSE and promote the uniform migration of Li+ by in situ construction of a multifunctional interface consisting of Li3P/LiCl (PCl@Li) was created. The Li3P component acts as a Li+ channel, banishing Li+ diffusion obstacles within the interface layer, while the electronically insulating LiCl component acts as an electron-blocking shield at the Li/HSE interface, promoting uniform Li+ deposition and preventing the formation of Li dendrites. The interface impedance of the symmetric PCl@Li|HSE|PCl@Li battery decreases markedly from 230.2 to 47.4 Ω cm–2. Additionally, the battery demonstrates superb cycling stability for over 1300 h at 0.1 mA cm–2 and maintains a minimal overpotential of 32 mV at 30 °C. The PCl@Li|HSE|LiFePO4 battery shows an initial discharge-specific capacity of 135.6 mA h g–1 at 1 C, with a notable capacity retention of 87.0% (118.0 mA h g–1) after 500 cycles. This work provides a new facile strategy for all-solid-state batteries to address interface issues between Li electrodes and HSE.
研究领域:
材料科学
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储能
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电化学
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电池技术
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Kai Xu,Shuang Yuan
Urban heat islands and the rising energy consumption of dense cities call for scalable passive cooling solutions. Conventional green roofs offer ecological and thermal benefits but are constrained by the optical and physiological limits of natural leaves. Here, we report a bionic green roof material that replicates key leaf-inspired functions while enabling effective thermal regulation through engineered optical and hygroscopic properties. The material features a TiO 2 –LiCl/PVA composite film on a reflective aluminum substrate, combining high solar reflectance, strong sky-facing emissivity, and low downward thermal emission for efficient radiative cooling. The LiCl-doped PVA film is capable of reversible moisture absorption–desorption, emulating transpiration-driven evaporative cooling without irrigation or stomatal limitation. Outdoor experiments confirm significant reductions in roof and indoor temperatures under both sunny and cloudy conditions, while simulations predict 12.7%–23.1% reductions in annual cooling energy consumption in typical hot urban climates. The bionic green roof also exhibits excellent durability and self-cleaning capability, demonstrating a robust, maintenance-free approach for climate-adaptive and energy-efficient architecture. These results highlight a scalable material-based strategy that addresses key limitations of traditional vegetated roofs by integrating radiative and evaporative cooling, offering a practical route toward low-carbon and climate-adaptive architecture.
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产品关联
DOI
高影响因子
APPLIED THERMAL ENGINEERING
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2026
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IF 7.5
Fenhong Song,Hongbo Zhang,Long Ma,Zengqiang Tan,Gang Wang,Qi Qi,Jing Fan
AF composite adsorbents loaded with SrCl 2 and LiCl/SrCl 2 binary salts were developed. • Water adsorption kinetics showed composite adsorbents' synergistic effects. • The adsorption capacity of Sr 0.7 Li 0.3 @AF-20 was enhanced by 194% compared with AF. • LiCl incorporation disrupts the hydrated structure of the Sr@AF-Z composite system. The development of novel adsorption energy storage materials with both high energy storage density and fast adsorption kinetics is crucial for the large-scale application of adsorption heat storage technology. In this work, aluminum fumarate (AF) was used as a support, and composite adsorbents loaded with SrCl 2 single salt and LiCl/SrCl 2 binary salts at different ratios were prepared via impregnation. The adsorption thermal storage behavior, synergistic mechanism between components, and the regulation of LiCl doping ratio on the pore structure and hydration system were systematically investigated. The results demonstrate that the introduction of LiCl effectively tailors the pore structure of AF-based composites, optimizes the mixed hydration system of binary salts, and significantly alleviates pore blockage under low humidity that plagues single-salt systems. The thermal storage capacity of the composites first decreases and then increases with rising LiCl content. Among them, Sr 0.7 Li 0.3 @AF-20 exhibits the best overall performance, with a saturated adsorption capacity of 1.03 g/g-186% higher than pristine AF and 80% higher than the optimal SrCl 2 single-salt sample Sr@AF-20-and a thermal storage capacity of 1097.685 kJ/kg. After 10 adsorption/desorption cycles, it retains 85% of its performance, indicating a certain degree of cycling stability. Thus, the simultaneous improvement of adsorption capacity, thermal energy storage density, and cycling stability was achieved by rationally adjusting the binary salt ratio. These findings provide key material references and novel component design strategies for promoting the industrialization of solar adsorption thermal energy storage technology. Download: Download high-res image (198KB) Download: Download full-size image
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2022
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IF 10.53
Faizal Soyekwo,Hui Wen,Dan Liao,Changkun Liu
Selective recovery of lithium from Salt Lake brines using environmentally friendly technologies is increasingly demanded to overcome the shortage of lithium. However, satisfying high separation precision is challenging for most polymer nanofiltration membranes. Besides, bestowing high permeance together with improved membrane fouling remains a challenge for the widespread implementation of membrane processes. Herein, a new tri-quaternary ammonium-based ionic liquid (TQAIL) electrolyte monomer is synthesized and utilized for the surface modification of nascent polyamide active layer to fabricate IL-modified polyamide nanofiltration (NF) membrane for Mg 2+ /Li + separation. Molecular dynamics simulations confirm that TQAIL modification creates nanoscale structural heterogeneity leading to enhanced surface hydrophilicity and reduces internal resistance through the membrane selective layer. The TQAIL membrane exhibits improved Li + /Mg 2+ selectivity and improved water permeability of 26.11 L m −2 h −1 bar −1 , which is fourfold that of unmodified membrane accompanied with a 100-h stable continuous nanofiltration. Moreover, the membrane displays good anti-biofouling behaviour with excellent antimicrobial properties. This study offers new insights into how surface functionalization using multication side chains can remarkably improve ion separations by molecularly tuning ion-membrane electrostatic interactions in polymeric membranes .
研究领域:
材料科学
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环境工程
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2017
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IF 3.133
Zeng Chen,Shengjun Li,Wei Li,Yumin Wang,Chunli Diao,Xiyang Jia,Qingqing Pei,Sihan Wang,Dawei Zhang,Weifeng Zhang
The preparation of suitable SiC fiber (SiC f )/Al precursors is crucial for the fabrication of SiC f -strengthened Al alloys . In this work, a SiC f /Al precursor was prepared by pulse current deposition in a molten LiCl–KCl–AlCl 3 melt. The electrochemical deposition of Al 3+ was separately investigated on the Mo wire, Cu wire, SiC f , and Cu-coated SiC f electrodes. The intermediate Cu layer can eliminate the Li generated by the underpotential deposition on the carbon layer outside SiC f . In addition, open circuit chronopotentiometry was performed to confirm the reduction processes of Al 3+ on the Cu wire and Cu-coated SiC f , and the results indicate that Al 3+ exhibits similar reduction processes on the two electrodes. The deposited Al layer possibly formed Al–Cu alloys with the intermediate Cu layer on SiC f , which was beneficial to the connection between the Al layer and SiC f substrate. Scanning electron microscopy was employed to investigate the morphology and microstructure of the prepared SiC f /Al fiber. After the pulse current was optimized, a compact and even layer of Al was deposited on SiC f .
研究领域:
材料科学
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金属基复合材料
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电化学
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冶金工程
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纳米材料制备
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2017
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IF 2.323
Dan Li,Shanshan Li,Lingzong Meng,Tianlong Deng,Yafei Guo
The solubility data, composition of the solid solutions, and refractive indices of the LiCl–LiBr–H2O and CaCl2–CaBr2–H2O systems at 288.15 K were studied with the isothermal equilibrium dissolution method. The solubility diagrams and refractive index diagrams of the two systems were plotted at 288.15 K. There is no invariant point, one univariant solubility curve saturated with solid solution, and one crystallization field of the solid solution in the phase diagrams. The two systems belong to the solid solution type, and no double salts formed in the systems. The refractive indices calculated with an empirical equation agree well with the experimental data. By combining the composition equations and solubility equilibrium constant equations of the solid solutions, the solubilities of the two systems at 288.15 K were calculated on the basis of the Pitzer and Harvie–Weare models. The calculated solubilities agree well with the experimental results.
研究领域:
化学
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物理化学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Zhengliang Zhao,Zhu Shu,Jun Zhou,Tiantian Li,Kai Wang,Jingyang Song
LiCl-based molten salts have been widely used to induce the polymerization of melamine-derived monomer or intermediate into triazine-based or heptazine-based crystalline carbon nitride . Nevertheless, the role of LiCl beyond lowering melting point has not been fully revealed, and pure LiCl was exclusively reported to induce the formation of triazine-based crystalline counterpart. Herein, we firstly found that single LiCl can promote the deep deamination of melon-based pristine carbon nitride (PCN) to heptazine-based crystalline counterpart. As a result, a heptazine-/triazine-based crystalline carbon nitride homojunction was in situ formed by single LiCl-induced deamination and phase transition of PCN. It exhibits a favorable photocatalytic H 2 evolution reaction rate 18.3 times higher than PCN, which benefits from the promoted charges separation between heptazine and triazine units in phase homojunction. This work emphasizes that single LiCl can realize diverse modulation of carbon nitride framework with advanced photocatalytic activity.
研究领域:
材料科学
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化学工程
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能源科学
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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）