Chemical Science
·
2024
·
IF 7.6
Yinglei Tao,Tao Wang,Xingyu Yu,Ke Gong,Hao Gong,Haixia Chen,Xiaoli Fan,Aidi Zhang,Xianli Huang,Kun Chang,Jianping He
Li–O2 batteries (LOBs) boast an exceptionally high theoretical energy density; however, the slow kinetics of the oxygen electrode reaction have been a significant hurdle in their advancement and practical application. In this study, a composite of bismuth oxyhalide heterojunction incorporated with metal–organic frameworks (MOFs) was engineered on carbon cloth (Zr-MOF/BiOIBr/CC) as an efficient bifunctional catalyst to enhance the oxygen electrode reaction in photo-assisted LOBs. Compared to Zr-MOF/CC, Zr-MOF/BiOIBr/CC significantly expands the light absorption spectrum of the catalyst. Furthermore, the built-in electric field in the heterojunction aids in the separation and directional movement of photogenerated carriers, thereby expediting the reaction kinetics of LOBs. Consequently, the photo-assisted LOBs with Zr-MOF/BiOIBr/CC as the cathodes display a discharge potential of 3.05 V, a low charge potential of 3.20 V, and an energy efficiency of up to 95.3%, and can sustain an extended cycle life of over 255 cycles. This study underscores the potential application of MOFs/semiconductor heterostructural materials in photo-assisted LOBs and offers insights into the systematic design of photo-assisted air batteries and other advanced semiconductors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yajuan Jiang,Shining Zhang,Chunyu Xu,Bin Jia,Shijie Ren,Wenyu Zheng,Yicong Huang,Kunpeng Jiang,Xiuyun Zhang,Yunyun Zhao,Guisheng Zhu,Huarui Xu
In this paper, biomass carbon@Li(Ni 0.6 Co 0.4 )O 2 (BC@LNCO) micron-tube is successfully synthesized via a bio-templating method as cathodic material for lithium-ion hybrid supercapacitors. Cobalt nickel subcarbonates nanowires arrays are homogeneously grown on bagasse substrate via a unique synthesis strategy using a toluene-water interface reaction process, which subsequently transform as BC@LNCO micron-tube after lithiation process. The distinctive biomass fibre structure of bagasse biomass carbon leads to a significant enhancement in active sites in the BC@LNCO composite, which facilitates lithium-ion diffusion and enhances the contact area between the electrode and electrolyte. So, the prepared BC@LNCO electrode demonstrates improved electrical performances with a high specific capacitance of 921 F g −1 at 1 A g −1 and a good rate performance with 72 % retention at 10 A g −1 . In addition, the lithium-ion hybrid supercapacitor is fabricated with BC@LNCO and activated carbon (AC) as positive and negative electrodes, respectively. The BC@LNCO//AC device demonstrates a good energy density of 56.25 Wh kg −1 at 818.4 W kg −1 , and maintains 25.06 Wh kg −1 when the power density is up to 8143.42 W kg −1 , indicating that the prepared BC@LNCO composite can be a promising candidate as electrode material for Li-ion hybrid supercapacitor.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Lin Chen,Ruichao Zhu,Han Gao,Jin Wu,Zhiwei Yin,Chuqing Cao
The recycling of lithium-ion batteries (LIBs) presents significant challenges due to the absence of robust acid-resistant membranes capable of selective ion separation under harsh acidic conditions, commonly encountered in hydrometallurgical processes. This study developed a novel PSA-BTSC (polysulfonamide with 1,3,5-benzenetrisulfonyl chloride) composite membrane integrated with UiO-66-NH 2 nanoparticles, aiming to enhance both acid resistance and ion separation performance. Experimental results demonstrated that the PSA-BTSC membrane achieved a Li+/Co 2+ separation factor of 28.02 and retained 85.8 % permeability for Li + while maintaining 91.1 % rejection for Co 2+ after 30 days of immersion in 1 M HCl, showcasing superior acid resistance compared to conventional PA-TMC (polyamide with 1,3,5-benzenetricarbonyl trichloride) membranes, whose Co 2+ rejection dropped drastically to 19.4 %. Surface charge analysis and pore size distribution indicated that PA-TMC membranes suffered partial hydrolysis and pore enlargement, resulting in a reduction of separation efficiency. In contrast, the sulfonyl groups in PSA-BTSC membranes conferred enhanced stability against acid-induced degradation. Additionally, density functional theory (DFT) simulations highlighted the higher activation energy barrier (2.63 eV) for sulfonamide bond hydrolysis compared to amide bonds (1.57 eV), emphasizing the superior stability of the PSA structure. These findings highlighted the superior stability and acid resistance of PSA-BTSC membranes, positioning them as promising materials for applications requiring high stability in acidic environments, such as the processing of lithium battery leachates.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Xin Zhang,Licai Chen,Yunliang Zhao,Yupeng Sun,Renbo Gao,Yanhui Miao,Shuai Cheng,Songliang Ma,Haoyu Bai,Tingting Zhang
Interfacial polymerization (IP) is a common approach for preparing selective nanofiltration (NF) membranes for efficient lithium extraction from salt-lake brines, yet controlling the structure and thickness of the polyamide (PA) selective layer remains challenging. In this study, a two-dimensional montmorillonite (2D MMT) layer was incorporated into the IP process to regulate interfacial reaction behavior. The 2D MMT layer was conducive to enriching amine monomers and inhibiting diffusion rate, thereby resulting in a thinner PA selective layer and the reduced water transport resistance. At the same time, the increased density of amine groups on the membrane surface implied that the membrane has a higher positively charge, which is more favorable for the Mg 2+ /Li + selective separation. As-optimized 2D MMT modified PA membrane demonstrated a high Mg 2+ /Li + selectivity of 35.45, nearly 6 times as high as that of the bare PA membrane. In addition, the stronger hydrophilicity of the 2D MMT modified PA membrane effectively retarded contamination, contributing to the long-term operational stability of the membrane and prolonging service life. This work provides a versatile strategy for enhancing NF membrane performance by employing 2D clay nanosheets to modulate the IP process. As-modified 2DMMT-PA membrane is suitable for practical applications in sustainable lithium resource recovery.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Cuijing Liu,Lei Li,Linbo Li,Xihong He,Hideto Matsuyama
Covalent organic framework (COF) emerges as a promising membrane material for ion separation, such as Li + extraction from brines. However, the single-functionalization of most COF channels hinders further improvements in separation efficiency. Herein, the angstrom size, positive charge and Li + affinitive sites have been integrated in the channels of triaminoguanidine (TG)-based COF membranes. Aldehydes with different lengths of oxygen-containing side chains were employed to precisely tune the size and ion affinity of the channels. Precisely engineered cationic channels with moderate pore size and Li + affinitive sites enable Mg 2+ rejection through synergistic size exclusion and Donnan exclusion, while simultaneously accelerating Li + permeation via affinitive interactions. The optimized membrane, TG-1, achieves a remarkable Li + /Mg 2+ selectivity of 423 with a Li + permeation rate of 34.02 mmol m -2 h -1 . Additionally, TG-1 is able to perform well in practical conditions including high Mg 2+ /Li + mass ratio, high temperature, long operation time and also in various mono-/divalent metals separations. This study offers insights in the construction of multi-functional membrane channels for efficient ion separations.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hao Zhang,Yao Zhang,Hang Xu,Lijun Li,Yanfang Gao
Developing high-energy-density lithium metal battery is essential for next-generation energy storage system, but poor interfacial stability and sluggish ion transport kinetics pose significant challenges. Herein, fluorine-functionalized metal–organic frameworks (MOFs) is developed and utilized as solid-state electrolyte to realize the target of efficient, long-life lithium metal battery. This fluorine-modified MOF electrolyte boosts in situ formation of LiF-rich solid electrolyte interphase (SEI), which is greatly benefit for uniform Li + deposition and lithium dendrite inhibition. The electron localization function (ELF) and nudged elastic band (NEB) calculation reveal that electron-withdrawing F group can modulate the electron distribution along MOF porous channels and reduce the energy barrier for Li transport, achieving high ionic conductivity (2.15 × 10 −3 S cm −1 ) and large transfer number (0.76). Consequently, the LiF-rich SEI enables batteries with ultra-long stability over 5000 h under 5 mA cm −2 and long-lifespan over 900 cycles. The COMSOL simulations confirm MIL-53-4F SSEs enable uniform Li deposition and suppress dendrite growth. Impressively, the fluorinated electrolyte illustrates excellent compatibility with LiNi 0.5 Co 0.2 Mn 0.3 O 2 and x Li 2 MnO 3 · (1-x) LiMO 2 high-voltage cathodes, achieving energy density of 164.8 Wh kg −1 . These findings bring valuable insight to develop highly efficient solid-state electrolyte for future long-life lithium metal battery.
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2024
·
IF 9.6
Li Wan-Ying,Dai Yi-Long,Cai Wen-Hao,Lin Si-Han,Guo Lin,Zhang De-Chuang,Li Yuncang,Wen Cuie
Zn-Li alloys are considered promising candidate materials for biodegradable orthopedic implant applications due to their high mechanical performance and good biocompatibility. However, the presence of a large number of second-phase particles in this class of Zn alloys can lead to severe localized degradation due to micro-galvanic corrosion, which is detrimental to the mechanical integrity of the alloys during tissue healing in the human body. In this study, we report ultrahigh strength, uniform corrosion, good cytocompatibility, and effective antibacterial ability in Zn- x Li ( x = 0.3, 0.5, 0.7; wt%) alloys achieved through supersaturated solid solution treatment (SSST) at 375 °C under ultrahigh pressure of 3 GPa. A high concentration of β-LiZn 4 phases coexisted with the -Zn matrix in the as-cast Zn- x Li alloys, whereas almost all the Li dissolved into the -Zn matrix of SSST counterparts. The yield strength was 437 MPa for SSST Zn-0.3Li, 592 MPa for SSST Zn-0.5Li, and 686 MPa for SSST Zn-0.7Li. The SSST Zn-Li alloys showed uniform degradation with remarkably reduced degradation rates compared to their as-cast counterparts. The 25% concentration extracts of the Zn- x Li alloys demonstrated no cytotoxicity toward MC3T3-E1 cells, and the alloys exhibited effective antibacterial ability against methicillin-resistant staphylococcus aureus.
✓ 已验证
DOI
高影响因子
Energy & Environmental Materials
·
2025
·
IF 14.1
Zhengcai Zhang,Dulin Huang,Xiaohui Peng,Zhang Zhang,Yaying Dou,Zhen Zhou
Redox mediators (RMs) represent the most promising strategy to address the sluggish kinetics of lithium–oxygen (Li–O 2 ) batteries. To achieve high-energy and cost-effective Li–O 2 batteries, carbon materials are typically regarded as ideal cathodes in these systems. However, the impact of their surface properties—which often regulate specific discharge pathways—on the RM-mediated oxygen reduction reaction (ORR) remains unclear. In this study, CNTs electrodes with different surface properties are fabricated. Results suggest that CNTs with more surface defects not only promote the unmediated discharge pathway even in RMs-involved battery systems but also exacerbate the corrosion of carbon cathodes. This, in turn, leads to the undesired accumulation of Li 2 O 2 and Li 2 CO 3 on the cathode surface, which hinders effective and continuous electron transfer between the cathode and RMs, ultimately decreasing the catalytic activity of RMs. As a result, the discharge capacity of the battery is seriously diminished, especially at large current densities. These findings underscore the significance of surface engineering in advancing the performance of RMs-assisted Li–O 2 batteries.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Jianxiong Xing,Tao Chen,Zihao Wang,Zhicui Song,Chaohui Wei,Qijiu Deng,Qiang Zhao,Aijun Zhou,Jingze Li
Lithium (Li) metal anode (LMA) is one of the most promising anodes for high energy density batteries. However, its practical application is impeded by notorious dendrite growth and huge volume expansion. Although the three-dimensional (3D) host can enhance the cycling stability of LMA, further improvements are still necessary to address the key factors limiting Li plating/stripping behavior. Herein, porous copper (Cu) foam (CF) is thermally infiltrated with molten Li-rich Li-zinc (Li-Zn) binary alloy (CFLZ) with variable Li/Zn atomic ratio. In this process, the LiZn intermetallic compound phase self-assembles into a network of mixed electron/ion conductors that are distributed within the metallic Li phase matrix and this network acts as a sublevel skeleton architecture in the pores of CF, providing a more efficient and structured framework for the material. The as-prepared CFLZ composite anodes are systematically investigated to emphasize the roles of the tunable lithiophilicity and hierarchical structure of the frameworks. Meanwhile, a thin layer of Cu-Zn alloy with strong lithiophilicity covers the CF scaffold itself. The CFLZ with high Zn content facilitates uniform Li nucleation and deposition, thereby effectively suppressing Li dendrite growth and volume fluctuation. Consequently, the hierarchical and lithiophilic framework shows low Li nucleation overpotential and highly stable Coulombic efficiency (CE) for 200 cycles in conventional carbonate based electrolyte. The full cell coupled with LiFePO 4 (LFP) cathode demonstrates high cycle stability and rate performance. This work provides valuable insights into the design of advanced dendrite-free 3D LMA toward practical application.
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Shuang Sun,Yuefeng Deng,Ji Chen,Rui Qin,Zhongte Du,Qianshun Wen,Yang Meng
With the amid surging demand for lithium, solvent extraction has gradually developed into a key method for lithium recovery in industry. Due to the problems of large dissolution loss and high extraction equilibrium pH of β -diketone system, di-(2-ethylhexyl) phosphinic acid (P227) was selected to recover Li + from the desorption solution of salt lakes (SL-DS). Compared with di-2-ethylhexyl phosphoric acid (P204), 2-ethylhexyl phosphoric acid mono 2-ethylhexyl ester (P507), and bis (2,4,4-trimethylpentyl) phosphinic acid (Cyanex272), P227 showed better separation ability for Li + and Na + . The extraction conditions, including saponification degree, initial pH, extractant concentration and phase ratio were studied. It could be found that the extraction efficiency of Li + was maintained at a high level in the initial pH range of 2.25–12.61. A cascade process consisting of eight-stage extraction and five-stage scrubbing was performed to verify the feasibility of this technology. 99.9 % of Li + from the SL-DS was extracted at the equilibrium pH of 7.60, and P227 exhibited superior selectivity for Li + over Na + . Moreover, under the optimal condition of 3.8 mol/L HCl and O/A of 20:1, the stripping ratio of Li + reached 99.76 % via a four-stage stripping experiment. The Li + concentration of stripping liquor attained 23.11 g/L and a high-purity (99.5 %) Li 2 CO 3 product was obtained by precipitation. After five cycles, P227 demonstrated excellent regeneration stability. Eventually, the composition of extraction complex was revealed as LiR•NaR by slope analysis, and the cation exchange mechanism was further confirmed using FT-IR and 31 P NMR.
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Runyuan Cao,Zichun Zhou,Xianhui Nie,Yongfeng Li,Chuanzhong Lai,Keyi Chen,Chilin Li
Conventional intercalation-type cathodes for lithium batteries are plagued by rapid capacity decay and unsatisfactory cycling lifespans when operating at subzero temperatures. Conversion-type iron fluoride seems to compensate for these setbacks due to its dramatic theoretical capacity via a three-electron transfer mechanism, but suffers from an irreversible solid–solid phase transition with the collapse of the charge-transporting tunnel and insulating LiF precipitation over the cathode–electrolyte interphase (CEI) layer. Herein, we propose a metal–organic framework in situ etching-fluorination strategy to construct a porous micron-brick monolithic grain cathode with rich heterojunctions of hexagonal tungsten bronze (HTB) FeF3 and rutile FeF2 with an epitaxial intergrowth mode. Owing to the optimized configuration with a self-healing built-in interfacial electric field, open diffusional channels, as well as topotactic conversion and catalyzing functions of FeF2 on Li–F splitting, this heterostructure fluoride enables a high energy density (1114 Wh kg–1 at 215 W kg–1) and high-rate performance (337 mAh g–1 at 1000 mA g–1) at room temperature. These effects also endow the cathode with outstanding low-temperature performance with an average capacity of 170 mAh g–1 for 100 cycles and a discharge capacity of 50 mAh under a 6-layer pouch cell configuration at −20 °C.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small Methods
·
2019
·Vol. 4
·期 2
·1900753
·
IF 0
Jipeng Liu,Liwei Dong,Dongjiang Chen,Yupei Han,Yifang Liang,Mengqiu Yang,Jiecai Han,Chunhui Yang,Weidong He
Metal oxides are arguably a promising solution to next-generation high-energy-density anode materials. In particular, molybdenum oxides own high theoretical specific capacity (1117 and 838 mA h g −1 for MoO 3 and MoO 2 , respectively), high chemical stability, and low cost. The low electronic conductivity of MoO 3 limits their charge–discharge rate performances and delithiation capability. By controlling the valence state of MoO x with carbon, partial MoO 3 can be reduced to MoO 2 with low electrical resistance and high-rate capacity. Nonetheless, both molybdenum oxides undergo large-volume expansion/shrinkage and even pulverization in the lithiation/delithiation process. Herein, through a facile pyrolysis method a MoO x /N-doped carbon nanotube (NCNT) anode with controllable valence states of Mo is designed. The high conductivity and flexibility of the NCNT matrix form a stable MoO 2 /MoO 3 anode with finely matched lattices and coordinated 3d electrons. Owing to molecularly close contact between electron-rich CNTs and MoO x , MoO x /NCNTs own a high conductivity of 0.36 S cm −1 , and mitigate the volume expansion in charges and discharges. The MoO 3 /MoO 2 /NCNTs anode delivers an unparalleled high gravimetric capacity of 970 mA h g −1 , over 100-cycle stability and high rate capability.
✓ 已验证
DOI
危险品化学品经营许可证（带存储）