Frontiers of Chemical Science and Engineering
·
2025
·Vol. 19
·期 5
·1-11
·
IF 4.5
Li Guojie,Liang Xuan,Zhang Junlong,Guo Bin,Mao Baoguang,Sun Hongming,Wang Aoxuan,Deng Qibo,Liu Chuntai
Lithium metal anode represents the ultimate solution for next-generation high-energy-density batteries but is plagued from commercialization by side reactions, substantial volume fluctuation, and the notorious growth of lithium dendrites. These hazardous issues are further aggravated under real-world conditions. In this study, a stable Al-Li/LiF artificial interphase with rapid ion transport pathways is created through a one-step chemical pretreatment process, effectively addressing these challenges simultaneously. As a consequence, the composite interfacial layer exhibits exceptional ionic conductivity, mechanical strength, and electrolyte wettability, ensuring swift Li + transfer diffusion while suppressing lithium dendrite growth. Remarkably, the Al-Li/LiF symmetric cell provides a cycle life exceeding 2300 h with a low polarization at 0.5 mA·cm −2 . Furthermore, its enhanced cycling stability and capacity retention as well as capacity utilization stability pairing with LiFePO 4 and LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathodes, highlighting the proposed approach as a promising solution for practical Li metal batteries.
研究领域:
材料科学
·
电化学
·
能源存储技术
✓ 已验证
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Li Wang,Jianfeng Zhang,Shixin Meng,Huiyong Wu,Yunze Zhao,Zhen Meng,Lei Feng,Huanting Wang,Yuan Cheng,Liangrong Yang,Huizhou Liu
The dissolution loss of extractant into aqueous solution during lithium solvent extraction from salt lakes poses a significant issue. We found that branched chains of neutral organophosphorus extractants provide suitable steric hindrance, enhancing lithium extraction efficiency and Li/Mg selectivity. Additionally, increasing the number of alkyl chains in organophosphorus extractants increases their hydrophobicity, thereby reducing extractant dissolution loss during the extraction process. Based on these findings, a novel extraction system comprising tri(2-ethylhexyl) phosphate (TOP), FeCl 3 , and 4-methyl-2-pentanone (MIBK) was explored. The extraction conditions, including the Fe/Li molar ratio, diluents, phase ratio, and stripping conditions, were thoroughly investigated and optimized. The extraction mechanism was elucidated at the molecular level using FT-IR, Raman, NMR, and density functional theory (DFT) calculations. The results demonstrated that the TOP-FeCl 3 -MIBK system achieved an 85 % extraction efficiency for Li + in a single stage, with a Li + /Mg 2+ separation factor reaching 5842, surpassing previously reported data in the literature. 31 P NMR and 7 Li NMR analyses revealed that the TOP and tributyl phosphate (TBP) complexes existed in different forms within the organic phase. Slope analysis indicated that the stoichiometric ratio of the extraction complex involving Li + , TOP, and MIBK was LiFeCl 4 ·TOP·MIBK. Furthermore, DFT calculations indicated that the TOP complex was more stable than the TBP complex after extraction. We anticipate that our findings will pave the way for the development of a series of novel extractants with higher Li/Mg selectivity by enhancing steric hindrance and incorporating longer alkyl chains to minimize dissolution loss. We expect this research to inspire the development of similar neutral organophosphorus extractants.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Ping Wang,Peixi Wang,Jie Wang,Shoutao Lv,Jiaqing Wang,Hui Zheng
With the rapid development of wireless charging technology, there is a growing demand for ferrite materials with high permeability, high saturation magnetic induction intensity, and low power loss. This study aims to enhance the electromagnetic performance of NiCuZn ferrite by co-doping Nb 5+ and Li + . The influence of the doping levels Nb 5+ and Li + on the morphology, crystal structure, and electromagnetic properties of NiCuZn ferrite were studied in detail. Structural analysis shows that the lattice constant decreases as the Nb 5+ -Li + doping concentration increases, and the NiCuZn ferrite exhibits a high density and homogeneous microscopic morphology at the optimum concentration of x = 0.004. Specifically, at a doping concentration of x = 0.004, the magnetic permeability at 1 MHz measured at 1112.1, the saturation magnetic induction intensity reached 458.98 mT, and the power loss was minimized to 521.85 kW/m 3 , demonstrating significant improvement in the transmission power of wireless charging applications.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
MINERALS ENGINEERING
·
2022
·
IF 5.479
Qinglong Luo,Mingzhe Dong,Quan Li,Zhijian Wu,Zhong Liu,Jun Li
The selective extraction of lithium from brine by lithium aluminum layered double hydroxides (Li/Al-LDHs) adsorption is used industrially. To maintain the structural and performance stability of the Li/Al-LDHs adsorbent, the Li/Al-LDHs adsorbent can be doped with some high electron density metals such as Fe(III) and regenerated by dilute Li-containing aqueous solution. In this study, we use Fe(III) doping and FeOOH nanocomposite to stabilize the structure of Li/Al-LDHs. The nanocomposites of Li/Al-LDHs, Fe dopped Li/Al-LDHs (Fe-Li/Al-LDHs), and FeOOH were synthesized by the phase-separated sol–gel method and granulated by using crosslinked alginate polymers. The nanocomposites and granulated nanocomposites were characterized by SEM, TEM, XPS, FT-IR, and XRD analyses. The adsorption–desorption performance of the granulated nanocomposites was evaluated with a single LiCl solution and the brine from Da Qaidam Salt Lake. The isotherms, kinetics, and thermodynamics parameters and Arrhenius parameters of the lithium adsorption of the granulated nanocomposites were obtained. At the 80% mass loading of the nanocomposites in the granulation, the granulated nanocomposites statically adsorbed 9.46 mg/g lithium and dynamically 8.18 mg/g lithium from Da Qaidam Salt Lake brine. The Fe(III) doping and nanocomposite with FeOOH reduced the dissolution of the Li/Al-LDHs in the granulated nanocomposites and did not negatively affect the adsorption capacity of the granulated nanocomposites.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE IONICS
·
2020
·
IF 3.107
Chang Su,Pengju Guo,Lihuan Xu
The Li (tri-(4-carboxyphenyl) amine) (Li-TCPA 2 ) doped polypyrrole (PPy-Li-TCPA 2 ) composites were successfully prepared by in-situ chemical oxidation using pyrrole and Li-TCPA 2 as raw materials. The structure, morphology, electrochemical properties of prepared materials were characterized by fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), specific surface area test (BET), scanning electron microscopy (SEM), cyclic voltammogram (CV) and electrochemical impedance spectra (EIS), respectively. Also, the charge-discharge properties of the prepared composites were studied by galvanostatic charge-discharge testing. The results demonstrated that as-prepared composite material exhibited a reversible redox process at 2.0–4.0 V. And the discharge specific capacity for PPy-Li-TCPA 2 (2:1) and PPy-Li-TCPA 2 (6:1) are 50.4 mAh·g −1 and 63.7 mAh·g −1 as measured at 30 mA·g −1 between 2.0 and 4.0 V, while PPy-Li-TCPA 2 (4:1) exhibited the discharge specific capacity of 91.1 mAh·g −1 , which were remarkably higher than that of the pure PPy (29.5 mAh·g −1 ) under the same experimental conditions. At the same time, PPy-Li-TCPA 2 (4:1) has improved rate performance and stable cycleability. The excellent electrochemical properties are attributed to the introduction of Li-TCPA 2 as dopant , which improved the electrical conductivity and the redox activity of PPy. Furthermore, the resulted well-dispersed particle structure of the composite as well as its improved specific surface area for doped PPy facilitated to the contact of the electrolyte with the active material, leading to the increased utilization ratio of active material and the enhanced electrochemical performances .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2019
·Vol. 25
·期 11
·5353-5360
·
IF 2.289
Ren Xiaoying,Xu Tao,Du Junlin,Pu Zhaohui,Wang Runbo,Wu Zhu
High-temperature battery system operated at or below 300 °C is highly desired for geothermal borehole applications. However, it remains a challenge to find suitable electrode materials meeting the need of wide borehole temperature. In this study, the discharge performance of Li 2 MoO 4 /LiNO 3 -KNO 3 /Li-Mg-B alloy battery system was studied over the temperature range of 150~300 °C with different current densities ranging from 10 to 30 mA cm −2 . The electrochemical test result showed that the single cell delivered maximum discharge capacity at 250 °C, with value of 1178.6 mAh g −1 at a current density of 10 mA cm −2 . Besides, it is found that the discharge capacities of the single cell increased as the current density rose at 300 °C attributed to the enhanced ionic conductivity at high temperature. As a result, the Li 2 MoO 4 /LiNO 3 -KNO 3 /Li-Mg-B alloy system is capable of being used in instrumentation for geothermal and oil/gas borehole explore between 200 and 250 °C.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2022
·
IF 6.633
Licheng Zhang,Jinfeng Li,Ruirui Liu,Yongquan Zhou,Yuze Zhang,Lianmin Ji,Lijuan Li
Efficient separation of lithium from salt lake brine with high Na/Li ratio is of great importance for the development of new energy industry. Liquid-liquid extraction using β-diketone system was proved to be an effective approach to separate lithium from alkaline metal ions, while the separation effect of lithium to alkali earth ions needs further investigation. In this work we proposed an extraction process using HBTA/TRPO system to recovery lithium from salt lake brine with high Na/Li ratio. The conditions of saponification, extraction, eluting, stripping and regeneration process was optimized by equilibrium experiments. Through the process, lithium, calcium and magnesium were extracted to the organic phase and then stripped step by step to obtain lithium-rich solution, then the stability of the process and organic was tested by cycle experiments, the results indicated the proposed method was effective and stable. Theoretical study based on density functional theory was conducted to expound the extraction selectivity to different metal ions, and the energy change, electrostatic potential and Mulliken charge of the complexes was obtained, the calculated results suggested the stability of the complexes followed the sequence: Mg 2+ > Ca 2+ > Li + > Na + > K + , which is consistent with the experimental results. The present work may provide a novel way to efficiently recover lithium from salt lake brine with high Na/Li ratio.
研究领域:
化学工程
·
新能源材料
·
理论计算
✓ 已验证
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2022
·
IF 4.632
Yangyang Sheng,Liyan Ming,Lin Liu,Peng Lin,Junpeng Shi,Liang Song,Yun Zhang
In recent years, white persistent luminescence materials have received extensive attention due to the potential application of white light in the field of plant growth lighting. The white persistent luminescence materials synthesized by traditional methods either have strict requirements on the concentration of doped ions or cannot produce white light continuously and stably due to different decay rates of various emission centers, which limits their further application. In our work, we successfully synthesized a novel Li + -doped MgLuGaO 4 phosphor with stable white-light emission and long persistent luminescence. The broadband emission of MgLuGaO 4 :Li + is mainly located at 350 – 650 nm, which has no change at different decay time, showing stable white-light emission. The persistent luminescence intensity is increased by 3.8 times and the persistent luminescence time is extended from 24 h to more than 36 h by doping Li + ions. Stable white-light and long persistent luminescence emission make it promising to be used in plant growth lighting.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jie Zhou,Siyuan Jin,Ruizhi Wu,Xiaochun Ma,Mengyao Pang,Zhe Yu,Guixiang Wang,Jinghuai Zhang,Boris Krit,Sergey Betsofen,Vitalii Neshchimenko,Buzikov Ruslan,Min Qiu,Yurong Yang,Jiaming Chen
Microarc oxidation (MAO) coatings incorporating hexagonal boron nitride (h-BN) nanoparticles were synthesized on Mg-Li alloys. The effects of h-BN nanoparticle concentration on the structure, phase composition, and tribological properties of the MAO coatings were systematically investigated. The results indicate that the addition of h-BN nanoparticles induces the formation of protrusions on the coating surface, varied in size and distribution with the concentration of h-BN particles. The protrusions are advantageous for enhancing the wear resistance of the coating, owing to the effective reduction of the contact area and the lubricating impact of the released h-BN particles during wear. The thickness and hardness of the coating contained h-BN particles are significantly elevated. At an optimal h-BN concentration of 7 g/L, the composite coating exhibits the lowest average coefficient of friction (COF = 0.59) and the minimum wear rate (W = 2.6 × 10 −6 mm 3 /N·m), thereby demonstrating superior tribological performance.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Zhongbiao Wang,Zhanyun Yang,Xin Shi,Qing Zhang,Wenzhong Ma,Qiuyan Bi,Yakai Lin
Achieving a balance between high water permeability and excellent ion separation performance remains a significant challenge for traditional nanofiltration (NF) membranes due to the inherent trade-off between permeability and selectivity. This study proposes an innovative modification strategy involving dopamine (DA)-functionalized ball-milled graphitic carbon nitride (BM-g-C 3 N 4 ), leading to the successful fabrication of high-performance NF membranes. The ball-milling process significantly improves the dispersibility of g-C 3 N 4 , while DA functionalization enhances the hydrophilicity of the membrane surface and the adhesion to the substrate. The results demonstrate that the incorporation of DA functionalized BM-g-C 3 N 4 (DA@BM-g-C 3 N 4 ) effectively reduces defects in the separation layer and provides additional water transport channels. The modified membrane exhibited outstanding separation performance, with the separation factor (SF) increasing from 13.77 to 22.42 and permeation flux improving from 9.9 L/(m 2 ·h) to 17.54 L/(m 2 ·h), tested in a 2.0 g·L −1 MgCl 2 /LiCl mixed salt solution. Furthermore, the fabricated NF membranes showed excellent ion separation efficiency and long-term operational stability, with the rejection rate of Mg 2+ remaining stable between 92.74 % and 97.78 % after 200 h of continuous operation.
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
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Ningning Feng,Bingliang Wang,Zhuo Yu,Yuming Gu,Lili Xu,Jing Ma,Yonggang Wang,Yongyao Xia
Li–CO2 batteries have attracted worldwide attention because of their dual characteristics of high energy density and effective CO2 capture. However, the basic electrochemistry mechanism involved has been unclear, which is mainly confused by the complicated decomposition of organic electrolytes. Herein, water-in-salt (WIS, LiTFSI/H2O 21.0 mol/1 kg) has been explored as a suitable electrolyte for the first time to investigate the reaction mechanism of Li–CO2 batteries with different cathodes (carbon nanotube (CNT) and Mo2C/CNT, respectively). An Mo2C-based Li–CO2 battery with WIS delivers a higher energy efficiency of 83% and a superior cyclability, compared to those of the CNT-based counterpart cell. Through various ex/in situ qualitative/quantitative characterizations, the Mo2C-based Li–CO2 battery with WIS can operate on the reversible conversion of CO2-to-Li2C2O4 ((e–/CO2)ideal = 1) at lower discharge/charge overpotentials, while the CNT-based counterpart cell is based on the formation/decomposition of Li2CO3 ((e–/CO2)ideal ≈ 1.33) at high overpotentials. Such a difference in CO2 reduction products stems from the stronger interaction between Mo2C(101) and Li2C2O4 than that of the CNT and Li2C2O4 based on the density functional theory calculations, resulting in the selective stabilization of the intermediate product Li2C2O4 on the Mo2C surface.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2020
·
IF 7.183
Huanhuan Wu,Yakai Lin,Wenyan Feng,Tianyin Liu,Lin Wang,Hong Yao,Xiaolin Wang
In order to utilize lithium from brines with high Mg 2+ /Li + ratio, a positively charged nanofiltration (NF) membrane was prepared by grafting amine-functionalized ionic liquid 1-(3-aminopropyl)-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([MimAP][Tf 2 N]) onto the surface of polyamide (PA) membrane. The effects of [MimAP][Tf 2 N] contents on the chemical composition, surface morphology , surface charges and separation properties of the modified PA membranes were discussed. The results of chemical composition analyses indicated reaction of the amine group of [MimAP][Tf 2 N] with the residual acyl chloride groups, which was existed on the surface of the nascent PA membrane. The surfaces of all the modified PA membranes were positively charged at pH = 6.4 due to the quaternary ammonium group of [MimAP][Tf 2 N]. In the separation process, the resulting membrane presented high water permeance (37.8 L/(m 2 ⋅h)) and mono-/divalent cation selectivity (Li + and Mg 2+ ) with much higher MgCl 2 rejection (83.8%) than LiCl rejection (24.4%). For a simulative brine with a Mg 2+ /Li + ratio of 20, the rejections to Mg 2+ and Li + by the optimized membrane (NF-IL-2.0%) were around 81.9% and −45.2%, respectively, where the permeate with the Mg 2+ /Li + ratio of 3.5 was obtained and the selectivity ( S Li,Mg ) was 8.12. Additionally, the optimized membrane exhibited a stable performance for Mg 2+ /Li + separation. Therefore, there is a very possibility for utilization of lithium from brine with high Mg 2+ /Li + ratio by using the optimized NF membrane.
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
危险品化学品经营许可证（带存储）