CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Songji Li,Yunfeng Wang,Xueping Tang,Zhuo Chang,Ming Li
Thermochemical energy storage technology has been demonstrated to effectively address the challenges posed by the intermittent and volatile nature of renewable energy sources. This technology converts thermal energy into chemical energy through a chemical reaction. However, conventional adsorbents have shown suboptimal adsorption efficiency and inadequate thermal conductivity in thermochemical energy storage systems. This study proposes the use of an aluminum-based metal-organic framework as the solid adsorbent, with the initial product Al-Fum-Al 2 O 3 prepared by incorporating nano-Al 2 O 3 . The novel thermochemical energy storage material, LiCl@Al-Fum-Al 2 O 3 , was synthesized via the impregnation method. A systematic characterization of the material was conducted, encompassing its adsorption properties, thermophysical properties, adsorption-desorption kinetics, and stability. The addition of nano-Al 2 O 3 led to a significant improvement in the material's thermal conductivity. At a mass fraction of 13 wt% Al 2 O 3 , the composite exhibited a thermal conductivity of 0.21448 W·m −1 ·K −1 , which is 66 % higher than that of pure Al-Fum. Furthermore, encapsulating LiCl within the pore structure of Al-Fum-Al 2 O 3 led to a substantial enhancement in the thermochemical heat storage performance, with the heat of adsorption reaching 1185.22 kJ·kg −1 , representing an 85 % increase compared to the unmodified Al-Fum-Al 2 O 3 matrix. After completing 20 cycles of adsorption and desorption, the material demonstrated stable adsorption-desorption kinetics with minimal fluctuations in heat storage capacity. These findings underscore the promising potential of the synthesized aluminum-based MOF energy storage material for applications in thermochemical energy storage.
研究领域:
能源材料
·
无机化学
·
热力学
·
吸附技术
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Chemistry
·
2023
·
IF 5.5
Gao Bingliang,Liu Zhiwei,Deng Yifan
Al-Li alloy was prepared by electrodeposition on solid aluminum electrode in a urea-LiCl (77.5:22.5, mol%) molten salt system at 353–393 K. The results of cyclic voltammetry and chronopotentiometry show that underpotential deposition of Li occurs on the Al electrode and forms phases of Al(α) and AlLi(δ) which are confirmed by XRD measurements. Scanning electron microscopy observation of deposits indicates that Al-Li alloy with the thickness of 143 µm was obtained by potentiostatic electrolysis at −0.5 V vs. Li+/Li. The Li content in the alloy obtained at 373 K can reach 6.9 wt%. Galvanostatic electrolysis at 20 A demonstrated that Al-Li alloy coating on aluminum plate can be obtained from urea-LiCl electrolyte at 373 K in the atmosphere.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2013
·
IF 2.297
Yijian He,Neng Gao,Guangming Chen
Three kinds of lithium chloride desiccants were selected, which are considered to be potential and interesting working fluids for a desiccant/dehumidification or absorption refrigeration system, and their isobaric specific heat capacities were determined in this context. Experiments were conducted at a high accuracy twin-cell scanning calorimeter. The temperature accuracy and heat flux resolution of the calorimeter are ±0.05 K and 0.1 μW respectively. The data of lithium chloride + water and lithium chloride + triethylene glycol (TEG)/propylene glycol (PG) + water systems were achieved at temperatures from 308.15 K to 343.15 K and atmospheric pressure. The mass fraction of LiCl ranged from 15% to 45% in the LiCl + H 2 O system, and the mass fraction of LiCl and glycol ranged from 10% to 23.3% and 20% to 46.7% in the ternary systems respectively. Based on the experimental heat capacity data, a universal empirical formula was correlated as a function of temperature and solute mass fraction. In the experimental mass fractions and temperatures range, the average absolute deviation (AAD) between experiment results and calculated values is no more than 0.15%, and maximum absolute deviation (MAD) is within 0.38%. These thermodynamic data of lithium chloride solutions can be effectively used for analysis and design of desiccant/dehumidification systems and absorption refrigeration systems in both refrigeration and chemical industry.
研究领域:
热力学
·
制冷工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Lina Xu,Xiaomeng Li,Jianliang Gao,Manqing Yan,Qiyang Wang
Flexible wearable devices based on hydrogels have attracted more and more attention, however, the preparation of hydrogels with high toughness, conductivity and anti-freezing and anti-drying is still a challenge. In this study, a chemical-physical cross-linked double network conductive organohydrogel was designed by incorporating gelatin and Lithium chloride (LiCl) into polyacrylamide (AM) network with water-glycerol binary solvent. The results displayed that the organohydrogel exhibited high toughness, high stretchability, anti-freezing and anti-drying capability. With the addition of glycerol and LiCl, the organohydrogel has shown good conductivity in wide ranges of temperature. Moreover, the organohydrogel could be used as a strain sensor for the detection of various human body motions. Meanwhile, it was found that the introduction of LiCl enhanced the strain sensing performance, the stability and working temperature range. The sensors exhibited a high thermal sensitivity (5.72 % /℃), broad temperature detection range (0–65℃). These outstanding advantages indicated that the organohydrogels have potential application as strain and temperature sensors .
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Engineering Materials
·
2022
·
IF 0
Baoguo Zhang,Haoyu Zhang,Bing Ai,Kefeng Pan,Weimin Zhang,Degang Li,Lipeng Zhang,Zhongning Shi
Due to the wide range of potential applications of metallic Li and other active metals, the development of simple and cost-effective electrochemical methods for extracting these metals from their salts is greatly important. Accordingly, herein, an electrochemical solvometallurgy technology pathway is proposed to realize the recovery of metallic Li at room temperature. A low-cost aprotic polar molecular liquid, dimethylformamide (DMF), was selected for electrowinning of Li with abundant LiCl as the raw material. Subsequently, the electrolyte structure of the optimized binary DMF/LiCl system (0.7 M LiCl) was analyzed using 7Li nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy, and theoretical calculations. Electrochemical reaction mechanisms were elucidated through cyclic voltammetry and ultraviolet–visible absorption spectrometry. Finally, the Li coating was successfully obtained using potentiostatic deposition on a high-purity In substrate in the form of nanoalloy sheets. To realize the transformation of electrodeposited materials from the “thin film” to the “bulk”, a continuous, direct smelting electrodeposited film short-process technique was proposed to achieve recovery of stable metallic Li in the form of a bulk Li–In intermediate alloy. This low-energy, low-carbon, and sustainable strategy can be applied for the low-temperature electrochemical recovery of reactive (Li, Mg, Al, and Ti) and rare-earth metals.
研究领域:
材料科学
·
冶金工程
·
电化学
✓ 已验证
DOI
Solids
·
2025
·Vol. 6
·期 3
·53
·
IF 2.4
Chenxing Liao,Huihuang Cai,Dongyuan Dai,Liaolin Zhang
Mg2TiO4:Mn4+(MTO:Mn4+) red phosphor has important applications in areas such as red LEDs and forensic science, but the preparation of MTO:Mn4+through the solid-state reaction method requires a high sintering temperature. Herein, MTO:Mn4+red phosphor was synthesized using the solid-state reaction method with LiCl flux, and its crystallographic structure and photoluminescence properties were studied to determine the influence of experimental parameters like the amount of fluxing agent added and sintering temperature in producing a bright red phosphor suitable for LEDs. The experimental results showed that samples with added LiCl could form pure MTO after sintering at 950 °C, whereas those without LiCl still contained a mixture of MTO and MgTiO3, even when sintered at 1400 °C. The optimal performance was achieved with a sample doped with 0.2 mol% Mn4+, synthesized using 50 wt% LiCl flux and sintered at 950 °C for 12 h. This sample exhibited a broad excitation band and a narrow red emission band peaking at 662 nm, confirming its excellent luminescence properties. Furthermore, a prototype red LED fabricated with a 377 nm chip and MTO:0.2% Mn4+phosphor achieved photoelectric conversion efficiency of 78.5% at a 100 mA drive current, confirming its viability for high-performance red LED manufacturing.
研究领域:
材料科学
·
发光材料
·
无机化学
·
固体化学
·
光电子学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 4
·525
·
IF 4.7
Yimo Liu,Zhongbao Liu,Zhipeng Qie,Zepeng Wang,Weiming Sun
Solid hygroscopic materials are extensively utilized in diverse fields, including adsorption heat transfer, adsorption heat storage, atmospheric water harvesting (AWH), and air conditioning dehumidification. The efficacy and energy efficiency of these materials in practical applications are significantly influenced by their adsorption and desorption properties. Yet, the introduction of inorganic salts to boost adsorption performance can result in issues like salt leakage. In this research, we prepared a polyacrylamide hydrogel through free radical polymerization, and its water-absorbing capabilities were improved by incorporating the hygroscopic salt lithium chloride. We compared it to a salt-based porous adsorbent, AlFum-LiCl, which also exhibited strong water adsorption properties and the potential for large-scale production. While AlFum-LiCl suffered from limited pores and salt leakage during high water uptake, the optimized PAM-LiCl displayed superior water sorption capabilities, showing no salt leakage even at water uptake of up to 3.5 g/g. At 25 °C, PAM-LiCl achieved equilibrium water uptake of 1.26 g/g at 30% RH and 3.15 g/g at 75% RH. In this context, utilizing 20 g of PAM-LiCl for the AWH experiment yielded daily water outputs of 8.34 L/kg at 30% RH and 16.86 L/kg at 75% RH. The salt-optimized PAM-LiCl hydrogel offers the benefit of application in higher relative humidity environments without the risk of deliquescence, underscoring its promise for atmospheric water harvesting.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Qianling Ma,Xu Zheng
Adsorption technologies for adsorption-based dehumidification and water harvesting from the atmosphere have great potential for energy-saving and environmental protection. The key to successful utilization of these technologies is desired properties of adsorbents. However, most existing adsorbents fail to have the characteristic of both high adsorption capacity and good desorption ability under low regeneration temperature such as at 40 °C. In this work, we grafted a thermo-responsive polymer (Poly(N-isopropylacrylamide) PNIPAM) to silica gel and impregnated with lithium chloride to prepare a composite adsorbent. The adsorption capacity of this composite can reach 1.70 g g −1 at 20 °C&70%RH, and 56% of adsorbed moisture can be released within 60 min at 40 °C&10%RH. This method offers a promising route to develop high-performance thermo-responsive composite adsorbents for desiccant coated heat exchanger (DCHE)-based dehumidification and adsorption-based atmospheric water harvesting (ABAWH).
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Hui Dang,Na Li,Zhidong Chang,Benfeng Wang,Yifei Zhan,Xue Wu,Wenbo Liu,Shujaat Ali,Hongda Li,Jiahui Guo,Wenjun Li,Hualei Zhou,Changyan Sun
In the present case, insoluble lithium in the simulated slag which is obtained by pyrometallurgical processing of spent lithium ion batteries (LiBs) is leached aqueously through transformation of insoluble lithium into soluble lithium via roasting with calcium chloride (CaCl 2 ). The change of both Gibbs free energy and the logarithm of the equilibrium constant, which are taken as functions of temperature for the chlorination reaction of simulated slag with CaCl 2 , are predicted through the simulation with an enthalpy, entropy and heat capacity (HSC) programme. The simulation indicates that CaCl 2 is a favourable and effective chlorine donor in this chlorination reaction to yield lithium chloride (LiCl) when the temperature is not less than 500 °C. These predicted results are tested and confirmed experimentally. A maximum of 90.58% lithium recovery can be yielded with the optimal roasting conditions of a temperature of 800 °C for 60 min and a molar ratio of Cl/Li of 1.8:1, along with subsequent leaching conditions of 60 °C for 30 min with a water/calcines mass ratio of 30:1. X-ray diffraction (XRD) results suggest that most of LiAl(SiO 3 ) 2 in the slag disappears under the best reaction conditions and is transformed into LiCl.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Chengyu Wang,Xiaorui Xu,Yang Tong,Wentao Zhou,Yafei Wang
Pyroprocessing of spent nuclear fuel is an important step in nuclear fuel cycle with the purpose of minimizing the radiation impact on environment and recycling useful elements. One major concern in the development of pyroprocessing is the structural material corrosion in LiCl-KCl molten salt electrolyte, which is the core component of the spent nuclear fuel reprocessing. To understand the influence of O 2- impurity on the structural material corrosion in LiCl-KCl molten salt, the study investigates the corrosion behavior of Inconel 600 alloy in LiCl-KCl molten salt containing different amounts of O 2- impurities at 500 °C by immersion corrosion experiments and electrochemical analyses.The results indicate that O 2- could accelerate the high-temperature corrosion behavior. The alloy surface developed a bilayer oxide structure following 500-hour exposure to molten salt with 3 mol% O 2- , identified as a 3.36-μm-thick outer Li 2 NiO 2 layer and a 1.11-μm-thick inner LiCrO 2 layer. Based on the corrosion behaviors of Inconel 600 alloy in LiCl-KCl molten salt with different amounts of O 2- impurities, a new O 2- affected corrosion mechanism involving the formation of dual-layer oxide films and nickel-rich particles was proposed, which could provide new insights for the corrosion study in the applications of pyroprocessing of spent nuclear fuel.
研究领域:
核能工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Carbon Neutrality
·
2025
·Vol. 4
·期 1
·1-9
·
IF 12.5
Yang Delong,Dai Jinhang,Du Ziting,Cao Qingya,Chen Gang,Qi Ting,Wang Weilu,Li Fukun
Since 3-acetylamino-5-acetylfuran (3A5AF) has been regarded as a promising nitrogen-containing synthon, the conversion of renewable chitin and its monomer N-acetyl-D-glucosamine (NAG) to 3A5AF is of significance. In this paper, we compared the catalytic activity of several Cl-containing compounds and found that LiCl exhibited superior performance. The effects of solvent, catalyst dosage, reaction temperature, and reaction time on the synthesis of 3A5AF were investigated. Under the optimized conditions, about 60% yields of 3A5AF were obtained in N-methyl-2-pyrrolidone (NMP) or dimethylacetamide (DMA) medium. The spent LiCl and DMA could be recycled and reused, without obvious decrease of 3A5AF yield. Moreover, the formed 3A5AF could be purified by a facile procedure. Experiment results and density functional theory (DFT) calculations revealed that homogeneous Cl − was vital for 3A5AF formation. This study provides an example for the effective conversion of chitin biomass to value-added compounds.
研究领域:
有机化学
·
催化化学
·
可再生资源利用
·
理论计算化学
✓ 已验证
产品关联
DOI
高影响因子
Nature Sustainability
·
2020
·Vol. 3
·期 5
·386-390
·
IF 12.08
Lang Jialiang,Jin Yang,Liu Kai,Long Yuanzheng,Zhang Haitian,Qi Longhao,Wu Hui,Cui Yi
Lithium (Li) is an important resource for the sustainability of socioeconomic systems given its wide use in various industrial applications. The industrial production of Li metals relies on the electrolysis of a mixture consisting of high-purity lithium chloride (LiCl) and potassium chloride. However, the purification of LiCl is expensive and unsustainable, requiring a substantial amount of energy and the use of noxious chemical reagents, so that producing high-purity Li efficiently and sustainably is a challenge. Herein we report a new method of producing high-purity electrolytic Li from low-purity LiCl using solid-state electrolyte. Taking advantage of the high Li-ion selectivity of the solid electrolyte, we directly obtained high-purity metallic Li through the electrolysis of low-purity LiCl. Our new method provides two important advantages over conventional methods: (1) the cost of producing high-purity Li is reduced by using low-purity LiCl from low-grade brine, and the simpler purification process reduces the use of energy and chemical reagents; and (2) the operating temperature of the electrolytic process decreases from 400 °C to 240 °C, leading to an additional reduction in energy use.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）