JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
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
·
化学工程
·
能源科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Zhuyao Li,Liandi Zhu,Hui Liu,Yuzhi Lin,Dandan Tang,Limin Zhou,Ying Dai,Zhi Gao,Feiqiang He,Kai Guo,Neng Yu,Zhirong Liu
The highly effective separation of two adjacent rare earth is significant to the rare earth and nuclear industries. This paper investigates the highly effective separation of Gd over Eu using liquid lead–bismuth eutectic (LBE) alloy cathode in molten LiCl-KCl-EuCl 3 -GdCl 3 by pulse potential electrolysis (PPE). Underpotential deposition of Eu and Gd is observed on the LBE alloy, with a depolarization value far greater than that of the liquid Pb electrode. Furthermore, the higher exchange current density and the lower activation energy of the electrode reaction indicate that the LBE alloy cathode has higher kinetic performance than the liquid Pb. Then, the practical electro-separation in LiCl-KCl-EuCl 3 -GdCl 3 systems is carried out by applying different electrolysis technology. The effects of varying electrolysis methods and parameters on separation factor ( SF ), extraction efficiency, cathode product morphology, and crystal size are studied and compared. The results show that both the extraction efficiency and the separation factor obtained by the PPE are the largest. The calculated extraction efficiency of Gd and the actual separation factor SF Gd/Eu of Gd/Eu could be up to 99.1 % and 759, respectively.
研究领域:
材料科学
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核工业
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稀土分离技术
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 48
·期 3
·1233-1240
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IF 3.3
Li Ding,Xin Kong,Yan Gong,Shanxin Yang,Yongde Yan,Yuan Deng,Yun Xue,Kai Zhu,Fuqiu Ma,Wei Liu
Bismuth (Bi) is a potential cathode material to drive the development of Gd extraction by molten salt electrolysis. However, study on the electrolytic reduction of Gd by Bi electrode in melts has not receive sufficient attention and understanding. Therefore, in this work, the electrochemical reactions, kinetic processes and thermodynamic properties in the electrolytic extraction of Gd were investigated by various electrochemical methods. The electrochemical results showed that only two Gd–Bi alloys were formed in the electrode reaction. Moreover, the exchange current density and activity coefficient during electrolysis were determined by galvanostatic pulse (GP) and Coulomb titration, respectively. The temperature dependence of both exchange current density and activity coefficient was further revealed. Finally, Gd was successfully extracted in the form of alloys through potentiostatic electrolysis.
研究领域:
冶金学
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电化学
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产品关联
DOI
高影响因子
Advanced Energy Materials
·
2021
·Vol. 12
·期 7
·2103226
·
IF 29.368
Zhangyi Xiong,Peijing Guo,Yushan Yang,Shaoyu Yuan,Ningzhao Shang,Chun Wang,Yufan Zhang,Huan Wang,Yongjun Gao
A dual-ion battery-supercapacitor hybrid device (DIB-SCHD), cleverly integrating a dual-ion battery (DIB) and a supercapacitor (SC), is expected to endow both the high energy density of dual-ion battery and the high power density of supercapacitor. Benefitting from the similar features of the electrolyte and symmetrical electrode configuration, a state-of-the-art DIB-SCHD is developed by using N-doped micropores-dominant carbon(N-MPC) as the electrode and LiCl in a room-temperature ion liquid hybrid as the electrolyte, which deliver an ultrahigh mass capacitance of 374 F g −1 with a high voltage of 3.5 V and a remarkable specific energy of 208 Wh kg −1 at 1144 W kg −1 and an ultrahigh specific power of 22834 W kg −1 at 77 Wh kg −1 . Combined with ex situ characterizations and theoretical calculations, the assembled DIB-SCHD presents a synergistic energy storage mechanism simultaneously involving ion intercalation/deintercalation and adsorption/desorption processes, which can promote the reaction kinetics and achieve exceptional electrochemical performance. The perfect integration of the dual-ion battery-type and supercapacitor-type electrodes provides a new strategy toward high energy and power density electrochemical energy storage devices.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaomeng Liu,Lang Wang,Ying Lei,Xiao Li,Chunzu Cheng,Leixin Yang,Long Jiao,Shuo Yang,Dengkun Shu,Bowen Cheng
Cellulose is considered an ideal material for flexible electronic humidity sensors due to its green renewable nature, rich surface groups and strong hydrophilicity. However, the traditional cellulose-based humidity sensor cannot simultaneously have wide detection range, high sensitivity and fast response time, which seriously hinder their development and application. Here, an ultrathin Lithium chloride (LiCl)/cellulose nanofiber membrane as moisture sensitive materials was prepared by one-step electrospinning and used to assemble a high-performance humidity sensor. N, N-Dimethylacetamide/Lithium chloride (DMAc/LiCl) solvent system was used to dissolve the cellulose, and DMAc volatilized into the air while LiCl remained in the cellulose nanofibers during the electrospinning process. LiCl as a highly moisture-sensitive inorganic salt has strong hydrophilicity and enhances the moisture sensing detection limit of cellulose fiber (especially under low humidity conditions), thus giving the cellulose moisture sensor excellent sensitivity (up to 4191 %) and a wide detection range (5–98 % RH). The nanometer size of cellulose fibers, the extremely low thickness and large pores of cellulose membranes accelerate the mass exchange of moisture between the air and the membrane, thus giving cellulose humidity sensor a fast response/recovery time (99/110 s) and low hysteresis (2.9 %). Moreover, the performances of humidity sensors didn’t degrade even after being subjected to long-term application (>30 days), high/low temperatures (73.6/0.1 ℃) and thousands of bending cycles. The proposed LiCl/cellulose nanofiber humidity sensor brings innovative solutions for the design of cellulose based sensor with great potential for use in non-contact humidity detection, respiratory monitoring and sleep apnea detection applications.
研究领域:
材料科学
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电子工程
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绿色化学
✓ 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
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xuanchun Wu,Guannan Zhou,Wenguan Liu,Yong Cao,Huiqin Yin,Zhongfeng Tang
Developing molten salt electrolytes with a low melting point and high electrical conductivity is critical for advanced thermal batteries. A novel LiCl-LiBr-KBr-KF (15.0-55.0-25.0-5.0 mol%) molten salt electrolyte was designed and validated through phase diagram calculation and experimental measurements. Compared with the LiCl-LiBr-KBr system, the melting point of the LiCl-LiBr-KBr-KF system decreased by 8.0 °C, the electrical conductivity increased by 0.25 S/cm, and the electrochemical window widened by 0.1 V at 500.0 °C. The mass loss of LiCl-LiBr-KBr-KF electrolytes at 830.0 °C is only 3.0 wt%, and its density at 500.0 °C is 2.36 g/cm 3 , i.e., 0.07 g/cm 3 higher than that of LiCl-LiBr-KBr. Practically, its lower melting point can reduce the activation energy of thermal batteries. Meanwhile, enhanced electrical conductivity and Li + diffusion coefficient can improve the power density and response speed of the thermal battery. LiCl-LiBr-KBr-KF electrolyte exhibits superior comprehensive performance. This result not only enriches the high-performance molten salt materials but also provides a novel strategy for designing next-generation thermal battery electrolytes.
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产品关联
DOI
高影响因子
Advanced Science
·
2026
·
IF 14.1
Xinglin Zhou,Lei Huang,Yan Zhou,Xiaohui Ning
Calcium-based liquid metal batteries are promising for large-scale energy storage due to calcium abundance and low cost, yet their practical applications are impeded by high operating temperatures, severe self-discharge, limited coulombic efficiency, and rapid capacity fading. Here, we develop a machine learning (ML)-assisted optimization framework, integrating data-driven analysis, ML prediction, and experimental verification to design a high-performance ternary molten-salt electrolyte. Through multi-parameter evaluation of thermodynamic stability, melting behavior, density, and cost, KCl was identified as an optimal third component for CaCl 2 -LiCl based systems. A multidimensional descriptor-performance dataset was constructed to develop a random forest model for precise electrolyte composition optimization. Guided by this model, the KCl-CaCl 2 -LiCl electrolyte (13:35:52 mol%) was experimentally verified to enable stable operation at 480°C, delivering a coulombic efficiency >99.5%, an ultralow self-discharge current density of 0.31 mA cm −2 , >91% capacity retention after 100 cycles, while maintaining a low material cost of 0.81$ kg −1 . This optimized ternary electrolyte suppresses calcium dissolution through cooperative multi-cation effects, significantly improving low-temperature electrochemical performance and cycling stability. This work not only provides a viable pathway toward practical Ca-based LMBs but also establishes a generalizable ML-assisted paradigm for accelerated electrolyte design in advanced electrochemical energy storage.
✓ 已验证
DOI
PubMed
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Sun Jiaqi,Peng Yaru,Chen Zeng
Applications of the molten salt electrodeposition method have attracted researcher’s attention in the preparation of magnesium-based alloys in the past decades. Sometimes, hot corrosion occurs on the surface of a metal electrode in molten salt. Here, the corrosion of a Ni electrode and its effect on the electrochemical formation processes of Mg-Ni alloys were studied in LiCl-KCl-MgCl 2 molten salt under an Ar atmosphere. Immersion experiments and some electrochemical experiments, such as cyclic voltammetry (CV), open-circuit chronopotentiometry (OCP), and potentiostatic electrolysis, were carried out to investigate the performance of a Ni metal electrode in LiCl-KCl-MgCl 2 molten salt. Hot corrosion of the Ni electrode became serious with the addition of MgCl 2 , and MgO was deposited on the surface of the Ni sheet. The CV and OCP experiments showed that the water introduced from outside had serious effects on the electrochemical reaction processes in this experiment. Corrosion of the Ni substrate was dynamically and thermodynamically inhibited in the electrochemical formation processes of Mg-Ni alloys. However, there was a small amount of MgO in the Mg-Ni alloys, and corrosion of the Ni sheet showed obvious effects on the morphology of Mg-Ni alloys
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
GREEN CHEMISTRY
·
2025
·Vol. 27
·期 47
·15236-15248
·
IF 9.2
Yutao Ni,Jiahui Song,Huiying Lan,Xue Jing,Wenwen Shi,Ruimin Ding,Xi Yin
The synthesis of high-loading platinum intermetallic compounds (IMCs) for proton exchange membrane fuel cells (PEMFCs) remains challenging due to severe nanoparticle agglomeration and inhomogeneity during high-temperature annealing. Here, we report a trace lithium chloride (LiCl)-assisted strategy that enables the synthesis of highly ordered Pt3Co IMCs with ultrahigh metal loading (50.43 wt% Pt) and a small particle size (∼3.58 nm). Comprehensive characterization reveals that LiCl lowers the activation barrier for Pt/Co salt reduction by a strong polarization force, while its molten-salt phase accelerates Co diffusion into the Pt lattice and surface atomic rearrangement. The resulting Pt3Co/C catalyst achieves a record oxygen reduction reaction (ORR) mass activity (MA) of 0.86 ± 0.04 A mgpt−1 in rotating disk electrode (RDE) tests. When integrated into PEMFC cathodes, it delivers peak power densities (PPD) of 2.92 W cm−2 (H2–O2) and 1.23 W cm−2 (H2–air) at 80 °C, alongside exceptional stability. Crucially, the MA at 0.9 V reaches 0.61 A mgpt−1, surpassing the U.S. DOE 2025 target (0.44 A mgpt−1) by 39%. This work pioneers a barrier-lowering synthesis paradigm that resolves the fundamental ordering–sintering trade-off in high-temperature IMC fabrication.
研究领域:
材料科学
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电化学
·
能量转换
·
纳米催化
·
燃料电池技术
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Shihong Xin,Zhiyue Wang,Shudan Wu,Xueqing Yong,Jun Yan,Yunlin Chen
Optical sensor research has drawn great attention for significant market potential and a wide range of applications. Ammonia (NH 3 ) is a gas widely used in industry, but it is also a significant safety hazard for its toxicity, corrosiveness and explosiveness. However, it is challenging to create reliable NH 3 optical sensors with high sensitivity, excellent selectivity and fast response simultaneously. In this work, heterostructure membrane Fabry ‐ P e ´ rot (F–P) cavities constructed by LiCl@MIL-53-(OH) 2 (LiCl was anchored in MIL-53-(OH) 2 ) and TiO 2 (LiCl@MIL-53-(OH) 2 /TiO 2 ) were fabricated for NH 3 detection. Compared to the MIL-53-(OH) 2 /TiO 2 heterostructure membrane F–P cavity, the LiCl@MIL-53-(OH) 2 /TiO 2 heterostructure membrane F–P cavity exhibited superior sensing performance toward NH 3 . Experimental results indicated that the LiCl@MIL-53-(OH) 2 -2.0/TiO 2 heterostructure membrane F–P cavity exhibited excellent selectivity and sensitivity (3.075 nm/ppm), and the lower detection limit achieved to 98 ppb. The results were attributed to the multiple actions of hydrogen bonding of NH 3 with Cl − and NH 3 coordination to Li + . Additionally, the sensor showed fast optical response time 500 ms, outstanding repeatability and stability. The sensitivity of LiCl@MIL-53-(OH) 2 -2.0/TiO 2 heterostructure membrane F–P cavity toward NH 3 at 2.5 ppm and 25 ppm is outstanding, showing the F–P cavity offers a promising solution for real-time NH 3 monitoring. Therefore, LiCl was introduced into MIL-53-(OH) 2 /TiO 2 F–P cavity NH 3 sensor, which provides a new idea for future optical gas sensors with high performance for gas sensing.
研究领域:
光学传感
·
气体传感器
·
纳米材料
·
金属有机框架材料（MOFs）
·
光子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FLUID PHASE EQUILIBRIA
·
2014
·
IF 2.241
Xuehong Zhao,Shu’ni Li,Quanguo Zhai,Yucheng Jiang,Mancheng Hu
This article deals with the mean activity coefficients of LiCl in amide–water mixtures with both ɛ -increasing co-solvent (urea–water, N -methylformamide–water), and ɛ -decreasing co-solvent ( N , N -dimethylformamide–water, N , N -dimethylacetamide–water) systems at 298.15 K by potentiometric method. Meanwhile, thermodynamic properties including the osmotic coefficients, the excess Gibbs free energy, the standard solubility product, the primary LiCl hydration number and the standard free energy of transference from water to the mixtures were also calculated. The nonideal behavior of these systems has been discussed in terms of the Pitzer, the Modified Pitzer and the extended Debye–Hückel equations parameters.
研究领域:
物理化学
·
溶液化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）