Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Xinli Gu,Maosong Qiu,Hongxia Xue,Xiangjun Pei,Hua Xiao,Lihong Zhou
s Sorption-based atmospheric water harvesting (SAWH) is an emerging strategy for decentralized freshwater acquisition. Developing advanced materials considering the synergistic effects of chemical composition and physical structure to improve water collection efficiency remains a current research hotspot and challenge. In this study, binary salt double network porous hygroscopic aerogels PAM/SA/FCNT/CaCl 2 /LiCl aerogel (PSFCL) and PAM/SA/FCNT/CaCl 2 /LiCl aerogel without swelling (N-PSFCL) with distinct macroporous scales were synthesized by controlling the swelling condition. The mechanical properties were significantly improved due to the formation of double networks by free radical polymerization and ionic cross-linking. PSFCL with larger pore size synergistically improved salt loading capacity (2.42 g·g −1 ) and water transport efficiency, achieving a water sorption capacity of 5.32 g·g −1 and a sorption rate of 1.89 g·g −1 ·h −1 at 90 % relative humidity, with a desorption rate of 1.01 g·g −1 ·h −1 at 1 kW·m −2 solar radiation intensity. This “trinity” design strategy of high water sorption capacity, rapid sorption-desorption kinetics, and superior mechanical properties provides a promising approach for future multifunctional atmospheric water harvesting gels.
研究领域:
材料科学
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环境工程
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化学工程
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纳米技术
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Jinbang Zhang,Chenglong Jian,Licha Meng,Xiong Hong,Qiao Lu,Yu Zhang
Regarding the crucial issues in the resource utilization of phosphorus tailings, like the high energy consumption of the traditional pyrolysis process and the low separation efficiency of calcium and magnesium, we came up with a medium-temperature semi-decomposition approach using LiCl as the catalyst. This can selectively pyrolyze CaMg(CO 3 ) 2 in phosphorus tailings. Characterization tools such as TG-DTG, SEM and XRD, combined with molecular dynamics theory calculations, were used to reveal the catalytic mechanism of LiCl and to establish a pyrolysis kinetic model. The results show that LiCl enters the dolomite interlayer by short-range diffusion, and utilizes the synergistic effect of the electron delocalization of Li + and the high electronegativity of Cl − to promote the embedding of Li + in the interlayer and perturbing the crystal lattice structure, which reduces the pyrolysis energy barrier and accelerates the C O bond breaking of the carbonate, and at the same time, changes the Ca 2+ /Mg 2+ coordination environment, which promotes the semi-decomposition of dolomite and realizes the efficient dissociation of MgO. Under the optimized process (1.5% LiCl, calcined at 550 °C for 90 min), the decomposition rate of elemental magnesium in phosphorus tailings reached 93.68%, the apparent activation energy was reduced from 205 kJ/mol to 122.47 kJ/mol. The pyrolysis process exhibits a typical three-stage feature: the initial stage is controlled by a three-dimensional interfacial reaction; the intermediate stage is controlled by a two-mechanism transition from a power-law-type kinetic model to a one-dimensional interfacial reaction model; and the final stage is dominated by a diffusion-controlled process.
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CORROSION SCIENCE
·
2021
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IF 7.205
Jian Zhang,Jin Huang,Ruxia Liu,Guoqiang Luo,Qiang Shen
Immersion tests of AlN in LiF-LiCl-LiBr-Li salt have been performed at 500 °C to study the corrosion behaviour of AlN. The results show that AlN initially corroded at a higher rate (2⋅10 −5 mg/(mm 2 ⋅h)) during 0−50 h than during 50−300 h (6⋅10 -6 mg/(mm 2 ⋅h)) because the formation of an alumina corrosion layer protected the AlN from further corrosion. The addition of metallic Li at low concentrations (<0.1 wt. %) to the molten salt inhibited the corrosion of AlN by preferentially depleting oxygen impurities, while Li at high concentrations (>0.1 wt. %) accelerated corrosion by reacting with YAG in AlN.
研究领域:
材料科学
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化学工程
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JOURNAL OF NUCLEAR MATERIALS
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2020
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IF 2.485
Yi-Chuan Liu,Ya-Lan Liu,Lin Wang,Yu-Ke Zhong,Mei Li,Wei Han,Yuan Zhao,Tong Zhou,Qing Zou,Xian Zeng,Wei-Qun Shi
As a typical uranium oxide , the electrochemical behaviors of U 3 O 8 in molten salt have attracted many research endeavors, but its dissolution behavior and related mechanism in molten salt has been less well understood. In this work, we reported the dissolution of U 3 O 8 in LiCl-KCl eutectic with the assistance of NH 4 Cl, which has potential significance for the pyrochemical reprocessing of spent oxide fuels. The spectroscopic techniques such as fluorescence emission spectroscopy, UV-Vis absorption spectroscopy , and X-ray Absorption Fine Structure (XAFS) were used to determine the chemical species during the dissolution process of U 3 O 8 . The results show that U 3 O 8 can be completely dissolved in molten salt under the air atmosphere, and it exists in the form of [UO 2 Cl 4 ] 2− . In contrast, under an argon atmosphere , the soluble [UO 2 Cl 4 ] 3− and insoluble UO 2 were detected as the main products.
研究领域:
化学
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核能工程
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DOI
高影响因子
Frontiers in Chemistry
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2023
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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
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电化学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Jing Wang,Zhaoyue Xia,Heng Yao,Qilong Zhang,Hui Yang
Triboelectric nanogenerators (TENGs) are promising for a variety of applications that require a reliable output performance and stability. In this work, by utilizing the synergistic effect of lithium chloride (LiCl) and MXene, poly(vinyl alcohol) (PVA) based composite films with humidity-sensitive properties were prepared and employed as a friction layer to achieve self-powered TENGs with enhanced output performance under high humidity. The composite material demonstrates exceptional and stable output performance in the humidity range of 30–95% while exhibiting a strong linear correlation with increasing relative humidity (RH). At 95% RH, its short-circuit current increases up to 31.91 μA, which is three times the output of the TENG fabricated by PVA and PTFE (P-TENG). The rich hydroxyl group in PVA, the strong hygroscopicity of LiCl, and the microcapacitor network provided by MXene nanosheets significantly improve the water absorption capacity and surface roughness of the composite material, resulting in an excellent triboelectric output of TENG. Short-circuit current of the TENG in a wide range of RH (from 50% to 98%) responds very sensitively to humidity fluctuations in the environment and superior adsorption–desorption performance as humidity decreases. Furthermore, TENG regarded as a power supply in high humidity conditions was realized and it can light up 240 LEDs instantaneously with the transfer charge density of TENG reaching 194.37 μC m–2. This technology presents an effective method for stable energy harvesting and self-powered sensing in fog, the ocean, and other high-humidity environments.
研究领域:
材料科学
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能源技术
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DOI
PubMed
高影响因子
BIOMASS & BIOENERGY
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2022
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IF 5.774
Gang Liu,Yujiao Xie,Chunjie Wei,Chang Liu,Feng Song,Xiuyu Sun,Yuan Zhang,Hongyou Cui
The one-pot approach was developed by using molten salt hydrate consisting of ZnCl 2 ·4H 2 O and LiCl·3H 2 O to produce 5-hydroxymethylfurfural (5-HMF) from cellulose . Cellulose was dissolved and regenerated to study the interaction of cellulose and molten salt hydrate. The effects of ZnCl 2 ·4H 2 O concentration, reaction time, and temperature on the conversion of cellulose to 5-HMF were investigated. 5-HMF yield increased when ZnCl 2 ·4H 2 O was mixed with LiCl·3H 2 O, and the maximum value (44.1%) was reached at 160 °C and 90 min when ZnCl 2 ·4H 2 O concentration was 64.9 mol%. The species of ZnCl 2 ·4H 2 O–LiCl·3H 2 O were analyzed, and the function of species concentration was correlated with the 5-HMF yield from the conversion of glucose and fructose. It was found that the synergistic catalysis of ZnCl 3 − , Zn 2+ , Zn(OH) + , H + as well as Li + promoted the efficiently cellulose conversion to 5-HMF.
研究领域:
化学工程
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催化
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生物化工
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可再生能源
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高影响因子
ChemistrySelect
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2025
·Vol. 10
·期 8
·e202404358
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IF 2
Yuanpei Lan,Zhou Zou,Shuang Liu,Arun Murali,Baolei Wang,Qingwei Jia,Shirong Wang
Graphical A series of Fe 2 O 3 ─CeO 2 ─C 3 N 4 (Fe–Ce–CN) catalysts were synthesized by a KCl–LiCl molten salt method. The 0.5 wt.% Fe 2 O 3 loaded Fe–Ce–CN which synthesized at 550 °C for 4 h had an excellent photocatalytic activity towards to tetracycline (TC) degradation due to the significantly boosted separation efficiency of photoexcited electron-hole pairs. In this work, Fe 2 O 3 ─CeO 2 ─C 3 N 4 (Fe–Ce–CN) catalysts were synthesized in the KCl–LiCl molten salt system, and their photocatalytic properties towards tetracycline (TC) degradation in wastewater were studied. The obtained 0.5 wt.% Fe–Ce–CN, synthesized at 550 °C for 4 h with 0.5 wt.% Fe 2 O 3 , had the highest photocatalytic degradation efficiency for tetracycline (TC), which achieved degradation ratios of 98.3% and 96.9% for TC solutions at concentrations of 20 mg/L and 80 mg/L, respectively. Characterizations indicated that the 0.5 wt.% Fe–Ce–CN had significantly enhanced photo-excited electron-hole separation efficiency and promoted photocatalytic activity. Additionally, superoxide radicals · O 2 − and electrons ( e − ) were identified as the key reactive species for TC degradation with 0.5 wt.% Fe–Ce–CN, attributing to its band structure. The possible enhancement mechanism was discussed and proposed. The findings in this work provide a new approach to preparing high-performance photocatalysts and offer insights into the Fe–Ce–CN ternary photocatalysts.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
ChemSusChem
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2025
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IF 6.6
Zhen Chen,Xi Wang,Shengjie Qian,Hai-Peng Liang,Minghua Chen,Zexiang Shen
Graphical A method of in-situ fabrication is proposed to create a LiCl-rich artificial SEI on lithium metal anodes by reacting MoCl 5 with Li. This resulting interlayer enhances uniform lithium deposition, suppresses dendrite formation, and significantly improves the cycling stability and performance of lithium metal batteries, demonstrating potential for practical high-energy-density applications. In the pursuit of high-energy-density lithium metal batteries (LMBs), the development of stable solid electrolyte interphase (SEI) is critical to address issues such as lithium dendrite growth and low Coulombic efficiency. Herein, we propose a facile strategy for the in-situ fabrication of a LiCl-rich artificial SEI layer on Li surfaces through reaction of MoCl 5 with Li (Li@MoCl 5 ). The resulting artificial SEI significantly enhances the uniformity of Li deposition, effectively suppresses dendrite formation, and improves electrochemical performance. As a result, Li@MoCl 5 symmetric cells demonstrate remarkable stability, achieving continuous cycling of 4200 h under a high current density of 10 mA cm −2 with an areal capacity of 1 mAh cm −2 . Full-cells employing Li@MoCl 5 exhibit superior cycling stability and rate capability, even at high cathode loading (17 mg cm −2 ). These results highlight the potential of this interface engineering strategy for advanced practical application of LMBs.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
DESALINATION
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2026
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IF 9.9
Yuheng Fan,Zhengyuan Li,Kai Feng,Pengwei Xie,Hui Tian,Yang Wu,Feng Zhou
Passive daytime radiative cooling (PDRC) is an emerging technology for regulating indoor temperatures without electrical energy consumption by reflecting incoming solar light and emitting thermal infrared radiation into outer space. However, the cooling efficiency of existing PDRC materials remains limited. In this work, we developed a porous composite xerogel integrated with hygroscopic lithium chloride (LiCl) and cellulose nanofibers (CNFs). Benefiting from its highly porous structure and the abundant C-O-C and C O functional groups of CNFs, the xerogel exhibits exceptionally high solar reflectance (97.76%) and mid-infrared emissivity (95.36%) within the atmospheric transparency window (8–13 μm), endowing it with superior radiative cooling properties. Furthermore, the evaporation of water molecules captured by the hygroscopic LiCl under solar irradiation induces additional heat absorption, which effectively suppresses temperature rise and further enhances cooling performance. Consequently, through the combination of radiative and evaporative cooling, the composite xerogel achieves maximum outdoor temperature reductions of 12.65 °C in spring and 27.76 °C in summer, compared to traditional porous polystyrene foam. Energy consumption simulation calculations indicate that the application of the CNF composite xerogel could reduce cooling energy consumption by over 30% in most regions of China. This study demonstrates a highly efficient PDRC material achieved through the synergistic integration of radiative and evaporative cooling strategies, showing strong utilization potentiality on the energy-saving capabilities of dual-functional materials.
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Hai-Xin Du,Min-Qi Wang,Zhou-Rui Wang,Fei-Peng Du,Sheng-Gao Wang,Zhe Chen,Ping Fu
Moisture-electric generation (MEG) hydrogels are emerging as a promising candidate for lightweight self-powered electronics by scavenging energy from atmospheric water vapor. Nevertheless, the simultaneous optimization of mechanical durability and electrical output performance remains a critical bottleneck for their practical applications. Herein, a porous poly(vinyl alcohol)/polyethylenimine/lithium chloride (PVA/PEI/LiCl) composite hydrogel is fabricated through a facile freeze–thaw strategy. The PEI-tailored three-dimensional porous structure boosts moisture adsorption and ion transport efficiency, while the dense hydrogen-bond network between PVA and PEI endows the hydrogel with superior structural stability and tensile flexibility. Moreover, the synergistic effect of PEI-induced electric double-layer behavior and LiCl-based ionic system substantially enhances ionic conduction and moisture-electric conversion capability. The optimized composite hydrogel achieves a tensile strength of 4.32 MPa and a breaking elongation of 473 %. Under 99 % relative humidity, the hydrogel exhibits a water uptake capacity of 149 % within 12 h and a high ionic conductivity of 1.19 S m −1 . The assembled MEG device yields an open-circuit voltage of ∼ 1.0 V, a short-circuit current of 713 μA, and a peak power density of 104 μW·cm −2 , alongside long-term operational stability for over 5 h without obvious performance attenuation. Furthermore, series-connected MEG devices can steadily drive commercial LEDs and digital watch. This work proposes a synergistic structural and ionic regulation strategy to synchronously improve the mechanical robustness and moisture-electric performance of hydrogels, providing a feasible avenue for the design of high-performance MEG materials and advanced self-powered electronic systems.
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JOURNAL OF NUCLEAR MATERIALS
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2025
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IF 3.2
Yuncong Ding,Xinyu Zhang,Xiaorui Xu,Changzu Zhu,Jia Song,Dezhong Wang,Shaoqiang Guo,Wentao Zhou
Investigating electrochemical behavior of lanthanides in molten salt systems is of significant interest for advancing pyroprocessing. This study aims to elucidate the impact of Cs + addition on the electrochemical behavior of CeCl 3 in molten LiCl-KCl eutectic. Several electrochemical methods, including square wave voltammetry (SWV), cyclic voltammetry (CV), chronopotentiometry (CP), open circuit potential (OCP), and linear polarization (LP), were employed to determine the electron transfer number, reversibility, diffusion coefficient, equilibrium potential, and exchange current density. The results show that Cs⁺ has no significant effect on the electron transfer number or the reversibility of the Ce 3+ /Ce reaction. However, the equilibrium potential of Ce 3+ /Ce redox couple shifts negatively with increasing Cs⁺ concentration. Moreover, Cs⁺ led to a reduction of approximately 19.3% in the diffusion coefficient (determined by CP) and an 11.1% decrease in the exchange current density. The relationship between viscosity and diffusion coefficient was further elucidated through molecular dynamics (MD) simulations.
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