Journal of Materials Chemistry A
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2026
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IF 9.2
Tao Yang,Peihang Li,Yingxue Mei,Dong Cai,Chongju Chen,Shuo Yang,Zhi Yang
To address the severe lithium polysulfide (LiPS) shuttle effect and sluggish redox kinetics of lithium–sulfur (Li–S) batteries, especially under high-temperature conditions, we introduce a high-efficiency natural thermostable catalyst, oxalate oxidase (OxOx), into the cathodes. Endowed with a unique hexameric structure, OxOx maintains robust catalytic activity at elevated temperatures (≥60 °C) and facilitates rapid electron/Li⁺ transport via its C-terminal α-helices. More importantly, its manganese-active center enhances LiPS adsorption and accelerates the liquid-solid conversion of sulfur species by lowering reaction energy barriers. Consequently, the OxOx-modified cathode delivers outstanding rate performance, long-cycle stability with ultra-low capacity decay, and effective shuttle suppression even under harsh high-temperature operating conditions.
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高影响因子
Microstructures
·
2026
·Vol. 6
·期 2
·N
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IF 8.5
Min Liu,Yuanqi Qian,Huhui Fu,Yaning Zhang,Jingbing Lu,Qi Xiong,Dapeng Jiang,Huamin Kou,Anhua Wu,Liangbi Su
Lanthanide-doped ultrasmall upconversion nanocrystals exhibit unique optical properties that differ significantly from bulk materials, making them highly promising for diverse applications. However, their widespread applications have long been impeded by extremely weak photoluminescence due to severe surface quenching effect. Herein, we present a Li+-doping-induced phase engineering strategy to achieve significantly enhanced upconversion luminescence in ultrasmall Cs2ZrF6:Yb/Er nanocrystals (NCs). While initial Li+ doping improves crystallinity, yielding up to a 63-fold emission increase, further doping triggers a phase transition to form heterophase nanocrystals consisting of trigonal Cs2ZrF6 and tetragonal LiYbF4. The synergistic effect of improved crystallinity and reduced local symmetry around lanthanide ions results in a 302-fold boost in emission intensity, even as the particle size decreases to ~6.1 nm. Moreover, these ultrasmall nanocrystals display anomalous anti-thermal quenching behavior, with luminescence intensity increasing as temperature rises from 303 to 483 K, driven by defect-mediated energy repopulation. This work not only offers a robust approach for fabricating ultrasmall, high-brightness NCs but also establishes phase engineering as a pivotal mechanism for modulating local crystal field, paving the way for high-performance, thermally stable ratiometric nanothermometry.
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Batteries & Supercaps
·
2026
·Vol. 9
·期 6
·e70361
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IF 4.5
Genxi Yu,Long Pan,Dawei Sha,Jianwen Cai,Gaofa Nie,Yutao Shi,Kaiqiang Li,Hao Xu,ZhengMing Sun
Garnet-type solid electrolytes hold great promise for solid-state Li-metal batteries owing to their high ionic conductivity, large shear modulus, and excellent Li metal stability. However, their air instability and poor interfacial contact cause high Li/garnet interfacial resistance and Li dendrite growth. Herein, an ionic/electronic mixed-conductive artificial interlayer (denoted as MLPL), consisting of MXene nanosheets, Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZT) particles, and a poly(ethylene oxide)/lithium salt (PEO/LiTFSI) matrix, is fabricated at the LLZT/Li interface to address these issues. Incorporating MXene and LLZT suppresses PEO crystallization, enhances segmental motion, and efficiently boosts ionic conductivity. The as-obtained MLPL interlayer is thin (15 μm) and exhibits excellent chemical/electrochemical stability and high ionic conductivity (1.48 × 10 −4 S cm −1 at 60°C). Furthermore, it homogenizes interlayer electric field distribution, mitigates electron-induced garnet attack, improves interfacial contact, accelerates Li + transport, and suppresses dendrite growth, as confirmed by field-emission scanning electron microscopy, electrochemical measurements and COMSOL simulations. Consequently, LiFePO 4 /LLZT@MLPL/Li cells exhibit excellent rate performance (95.4 mA h g −1 at 2.0C) and cycling stability (124.2 mA h g −1 after 100 cycles at 0.1C, 135.6 mA h g −1 after 70 cycles at 0.5C, 60°C). This work offers a universal and feasible strategy for interfacial engineering toward high-performance solid-state batteries. Graphical A mixed ionic/electronic conductive MLPL interlayer stabilizes the garnet/Li interface, homogenizes the electric field, and suppresses Li dendrites for high-performance solid-state Li metal batteries.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Zhiyun Kong,Yalin Shi,Haike Li,Yue Li,Aotian Liu,Rui Gong,Huan Zhang,Xiaolei Wang
To achieve a high efficiency separation of Mg 2+ and Li + , it is essential to precisely regulate the membrane's surface charge density and pore size. This work proposed a strategy for fabricating polyamide (PA) layer with ion-imprinted structures via interfacial polymerization (IP) assisted by ion-imprinting technology (IIT). Cu(II) was added to the Polyethyleneimine (PEI) aqueous phase to regulate the structure of PA nanofiltration (NF) membranes. After removal of Cu(II), PA-IIM 0.16 exhibited a selectivity factor of 44.27 for Mg 2+ /Li + mixture (2000 mg L −1 , 120:1). Upon the completion of the initial NF process, the Mg 2+ /Li + mass ratio underwent a significant reduction, dropping from the starting value of 120 to 2.32. This method facilitates the rapid penetration of Li + while preserving the high rejection of Mg 2+ by meticulously modulating the NF layer in terms of its pore size as well as its surface charge.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Jing Lan,Yuran Yu,Luyao Xing,Fujun Miao,Guosheng Shao,Peng Zhang
Self-supporting Cu/TiN nano-furry serves as a superior bifunctional catalyst for ORR/OER. • DFT reveals Cu/TiN heterojunctions facilitate uniform Li 2 O 2 film growth via enhanced LiO 2 affinity. • Carbon-free catalytic system effectively suppresses Li 2 CO 3 byproduct formation, reducing overpotential. • Delivers ultralow overpotential, high areal capacity and superior stability, outperforming Au-based counterparts. The major hindrance against developing high-performance lithium oxygen batteries (LOBs) lies in their infamously sluggish redox kinetic processes involving undesirable parasitic reactions, which results in large overpotential, low capacity and inferior cycling stability. The rational catalyst design is proposed as an efficient strategy to address the above issue. Herein, we have developed a self-supporting nano-furry cathode based on a Cu foam-supported hierarchical nanotube array architecture decorated with Cu/TiN nanojunctions, which contributes to a fresh bifunctional catalytic mechanism for enhancing ORR/OER catalytic kinetics. Such an integrated cathode with Cu/TiN nanojunctions catalyst enables resilient LOBs through minimizing the energy barriers and excessive input energy to form/decompose Li 2 O 2 , outperforming similar Au-based system. DFT simulation elaborates that the Cu-based heterojunctions with favorable LiO 2 -affinity tend to promote surface deposition of uniform Li 2 O 2 film, alleviating disproportionated reaction and achieving remarkably enhanced capacity. Consequently, this rationally designed cathode for LOBs achieved high area capacity up to 25.6 mAh cm −2 with a small overpotential of 0.37 V at 0.1 mA cm −2 , and exceptional cycle stability with over 350 cycles at 0.2 mA cm −2 under a fixed capacity of 0.25 mAh cm −2 . This work provides an insightful approach towards designing efficient, clean and cheap cathode with abundant metal-based catalysts for LOBs. Download: Download high-res image (278KB) Download: Download full-size image
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MINERALS ENGINEERING
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2026
·
IF 6
Ling-Ping Pu,Ren-Gui Xiao,Yu Kuang,Guang-Shao Yang,Xiao-Nan Lv,Xiang Ke
In situ synthesis of Li 5 AlO 4 through CO 2 controlled co-precipitation. • The hydrothermal method breaks the Li 5 AlO 4 lattice bonds, separation of Al 3+ /Li + . • A novel route for Li extraction from low-grade lithium ores. With lithium becoming increasingly essential for the production of batteries, the extraction of lithium from low-grade ores has drawn considerable attention. After roasting and acid leaching of low-grade lithium ore, the content of lithium element in the leachate is relatively low, while the content of impurities (Al, Fe, Ca, etc) is relatively high, which complicates the separation and the preparation of high-purity lithium salts. Herein, the leachate derived from low-grade clay-type lithium ore is employed as the raw material. Initially, chemical precipitation is applied to sequentially remove Fe 3+ , Ca 2+ , and Mg 2+ through pH adjustment. Subsequently, CO 2 is introduced into a solution containing Al 3+ and Li + to control the pH, thereby regulating the precipitation kinetics of Al 3+ . This enables the co-precipitation of Al 3+ /Li + and in-situ generates pentalithium aluminate (Li 5 AlO 4 ) compounds. Finally, a hydrothermal method is employed to successfully cleave the Li–O/Al–O bonds within the Li 5 AlO 4 lattice, achieving separation of Al 3+ and Li + ions. This process facilitates Li + enrichment and the successful preparation of high-purity Li 3 PO 4 . Meanwhile, the aluminum oxyhydroxide (AlO(OH)) as a byproduct was obtained. Products and intermediate stages characterization and analysis were performed using various analytical methods. Theoretical analysis was conducted on the Al-Li co-precipitation and the subsequent Li + leaching mechanism. This innovative method offers a novel approach for the efficient extraction of lithium resources from low-grade lithium ores. Download: Download high-res image (134KB) Download: Download full-size image
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DESALINATION
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2026
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IF 9.9
Chenghao Qiu,Yujiao Cao,Haiping Su,Jun Chen,Jianguo Yu,Sen Lin
Hollow Li/Al-LDHs were rationally designed to overcome diffusion limitations of granular adsorbents. • Hydrophilic binder and spinning-parameter regulation optimized hollow Li/Al-LDHs. • Finite element analysis revealed the mass-transfer enhancement of hollow structures. • Optimized hollow Li/Al-LDHs showed fast Li + kinetics and efficient dynamic cycling. Adsorption has become a central approach for industrial salt lake lithium extraction. A structural engineering strategy is developed to rationally fabricate hollow fiber-structured Li/Al layered double hydroxide granules (HF-LDHs) with enhanced mass transfer to overcome the extraction efficiency limitation from conventional granulation methods. The hollow architecture provides shortened diffusion pathways through a favorable pore microstructure and dual accessible surfaces for Li + directional migration with markedly accelerating intraparticle transport. HF-LDHs are characterized by good hydrophilicity and structural integrity with a compressive of 4.99 MPa, and the optimized granules can reach adsorption equilibrium within 60 min, which is shortened by over half to that of these traditional lithium adsorbent granules. Fixed-bed dynamic evaluation further demonstrates a rapid 2 h saturation and high effluent quality with a Mg 2+ /Li + ratio below 2. Moreover, HF-LDHs maintain a stable working capacity of about 7.20 mg/g over 20 cycles, with a high Li + extraction rate of 2.70 (mg/(g·h)), highlighting their potential for low-grade lithium recovery. Download: Download high-res image (240KB) Download: Download full-size image
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 39
·29832-29850
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IF 4.4
Yue Aobo,Meng Xianhe,Ruan Zikang,Ren Huixin,Sun Qiang,Hu Xiaoyu,Tang Anchun,Yu Nengjun,Kang Qiaoling,Yan Lijing
The PVDF-based polymer electrolyte has the disadvantages of low ionic conductivity and low Li + migration number at room temperature, which hinders its application in lithium-ion batteries. Herein, polymer composite electrolytes were constructed utilizing three polymorphic Ce-MOFs as functional fillers to enhance its performance. The homogeneously dispersed Ce-MOF fillers restricted the reorganization of PVDF-HFP chains, thereby led to the change in crystallization and aggregation state of the polymer. Moreover, their porous structure and active sites also promoted the Lewis acid–base interactions with the polymer and TFSI − , promoting ion dissociation. Temperature-induced phase variation produced distinct porous crystalline structures formed the tetragonal-phase MOF-76-Ce exhibiting excellent properties with a room-temperature ionic conductivity of 7.89×10⁻ 4 S cm⁻ 1 and a Li + transference number of 0.79. The full cell assembled with this electrolyte and high-energy-density polyanionic LiMn 0.6 Fe 0.4 PO 4 cathodes demonstrated good cycling stability. It could reach discharge capacity of 147 mAh g⁻ 1 at 0.2 C and a capacity retention of 91% after 200 cycles at 0.5 C under a high cutoff voltage of 4.5 V. This work offers an effective filler strategy for developing high-performance quasi-solid-state polymer electrolytes and highlights the crucial role of metal–organic framework topology in advancing safe and durable lithium metal batteries. Graphical abstract
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高影响因子
ACS Applied Energy Materials
·
2026
·Vol. 9
·期 14
·9390-9399
·
IF 5.5
Zhan Wenqi,Zhai Xingwu,Hu Jiaping,Xu Han-Shu,Tang Kaibin
Lithium−carbon dioxide (Li−CO 2 ) batteries are promising energy storage systems due to their high theoretical energy density and capability for CO 2 utilization, yet their practical performance is limited by sluggish reaction kinetics. Here, we report an effective edge-site engineering strategy to enhance the catalytic activity of MoS 2 nanosheets via controlled H 2 O 2 etching. Density functional theory (DFT) calculations reveal that edge sites exhibit significantly stronger adsorption toward key intermediates (Li, CO 2 , and Li 2 CO 3 ) than the basal plane, identifying them as dominant active centers. Guided by this insight, a series of MoS 2 nanosheets with tunable edge-site densities were synthesized on carbon paper. Structural characterizations confirm that moderate etching effectively increases edge-site exposure while preserving structural integrity. Electrochemical measurements demonstrate that the optimized MoS 2 -45 s electrode delivers a low overpotential of 0.77 V, excellent rate capability, and stable cycling over 700 h with an energy efficiency exceeding 75%. In short, our work highlights the critical role of edge-site regulation in improving catalytic performance and provides a rational strategy for designing advanced cathode materials for Li−CO 2 batteries.
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2026
·
IF 3.6
Zhihong Yu,Yutong Kuai,Junkai Lin,Mulan Yang,Guihuan Chen,Ziyun Zheng,Yixi Huang,Aiju Li
Although lithium-sulfur (Li-S) batteries exhibit extensive potential application as a novel type of rechargeable battery, their practical implementation is hindered by the shuttle effect of soluble polysulfides and the sluggish redox kinetics involved in converting polysulfides to Li 2 S 2 /Li 2 S. Herein, we synthesized cerium-zirconium oxide/carbon nanotube (CZO/CNT) composite via a facile hydrothermal-calcination method for use as a separator coating. In this material, the highly conductive network structure of CNTs optimizes charge transport pathways, ensuring rapid lithium-ion migration. Meanwhile, the strong polarity of CZO exhibits strong adsorption-catalytic capacity toward Lewis-basic polysulfides, thereby accelerating the reaction kinetics and improving the deposition efficiency of Li 2 S. Based on these merits, the Li-S battery utilizing CZO/CNT separator delivered a high discharge capacity of 1339 mAh g −1 at 0.1 C. In particular, the battery exhibited exceptional cycling stability, retaining a reversible capacity of 490 mAh g −1 for 800 cycles at 2 C, with a 0.059% capacity fade per cycle. This research demonstrates the potential of CZO/CNT composite in enhancing Li-S battery performance, offering a promising approach for developing advanced separator materials. Graphical This designed CZO/CNT-modified separator effectively facilitates Li 2 S deposition and enhances the redox kinetics. Consequently, the resulting Li–S battery exhibits robust cycling stability and remarkable capacity retention.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Zexian Xu,Wen Zhu,Weixing Liu,Wenbo Liu,Zican Liu,Ken Chen,Kang Li,Peiqi Lun,Jiawei Zhu,Muhammad Idrees,Saima Batool
The garnet-type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) is considered a promising solid-state electrolyte (SSE) due to its high ionic conductivity and electrochemical stability. However, the surface of LLZTO easily reacts with H 2 O and CO 2 in the air, forming a passivation layer of Li 2 CO 3 . This reaction further deteriorates the interface between LLZTO and the Li anode, resulting in poor wettability. Consequently, significant gaps form between LLZTO and the Li anode, leading to uneven deposition of Li during the cycling. Li dendrites can grow into these gaps, eventually penetrating the electrolyte and causing a short circuit in the battery. In this study, a surface modification method is investigated, where a thin film of titanium is deposited onto the surface of LLZTO electrolyte tablets using magnetron sputtering. The effects of magnetron sputtering deposition titanium film process parameters—chamber pressure, bias voltage, and temperature—on the electrochemical properties of button cells were investigated. The results indicated that LLZTO electrolyte tablets coated with titanium exhibited low interfacial resistance, high cycle stability, and significant inhibition of Li dendrites under optimized conditions of 1.0 Pa chamber pressure, 100 V bias voltage, and 150 ℃ temperature. Under these conditions, the interface resistance decreased significantly from 1437.9 Ω to 190.19 Ω. Additionally, the Li symmetric cell assembled with the titanium-coated LLZTO electrolyte tablet demonstrated stable cycling for over 1200 h at 25 ℃ under a current density of 0.1 mA·cm −2 .
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Zhifu Liu,Guanghui Shi,Shuzhuang Sun,Yong Wang,Jingyue Shang,Songbai Hu,Wenkang Deng,Chuhan Fu,Chenghao Liu,Xiao Wang,Tao Qi,Guoping Hu
Mordenite (MOR) is a widely recognized zeolite for direct air capture (DAC) of CO 2 , attributed to its high adsorption capacity and low adsorption heat. However, current approaches to promote Na + enrichment in 8-member ring channel (8-MRz) of MOR through regulating the Si/Al ratio or controlling Al distribution are constrained by synthesis controllability and cost, limiting further adsorption capacity improvements. Here, we demonstrate a straightforward and effective modification of Na-MOR via Li + -exchange, improving its performance for DAC of CO 2 . Due to its higher charge-to-size ratio compared to Na + , Li + concurrently enlarges aperture size and enhances pore polarity of 8-member ring side pocket (8-MRy). This synergistic spatial and energetic interplay resulted in Li 0.90 Na-MOR exhibiting faster kinetics and a higher CO 2 adsorption capacity (1.42 mmol g −1 ) at 400 ppm compared to Na-MOR (1.02 mmol g −1 ). In situ diffuse reflectance infrared fourier transform spectra (DRIFTS) and density functional theory (DFT) analyses confirm that Li + exchange augments charge density within the confined space of 8-MRy, promoting stable co-adsorption of multiple CO 2 molecules. This work advances the understanding of confinement effects on CO 2 adsorption and paves the way for advanced adsorbent design.
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危险品化学品经营许可证（带存储）