JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Shiwen Chu,Han Gao,Shiyu Zhu,Changle Luo,Zhuangzhuang Ma,Mochen Jia,Xu Chen,Jibin Zhang,Linyuan Lian,Ying Liu,Dongwen Yang,Yanbing Han,Zhifeng Shi
Multimodal optical anti-counterfeiting plays a vital role in modern commodity circulation. However, most current multimodal anti-counterfeiting materials rely on complex multi-component compounds and costly rare-earth ion doping, which limits their commercial applications. Therefore, achieving multimodal anti-counterfeiting within simple and low-cost compound systems holds promising practical prospects. This work developed luminescent materials with multimodal emission and optical storage capabilities via Mn 2+ single doping and Li-flux modification of an inexpensive and readily available CaO host. Calcium oxide is a common industrial product that can be obtained through simple calcination, laying the foundation for practical commercial applications. The Mn 2+ singly-doped sample enables information writing via ultraviolet light and dual-mode (thermal/optical) readout, a property not shared by the Li-flux modified counterpart. Furthermore, based on the flux effect, Li-flux treatment not only enhances the green emission of Mn 2+ but also introduces deeper traps, extending storage duration and enabling high-temperature readout. Leveraging the differences in optical response and trap distribution between the two materials, a multi-level optical anti-counterfeiting demonstration with dynamic color and temperature-dependent characteristics was constructed. This work provides a new material strategy for developing low-cost, high-security optical anti-counterfeiting and information encryption technologies.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Wenlu Zhang,Yaning Fu,Zhen Feng,Mengyao Huang,Youcai Lu,Qingchao Liu
Mn doping creates symmetry-broken Co δ+ -O-Ru δ− heterointerfaces. • Polarized Ru and Co sites enable catalytic shunting of ORR and OER. • Reversible metal-oxygen bond adaptation accelerates Li 2 O 2 conversion. • The catalyst delivers an ultralow discharge-charge overpotential of 0.37 V. • Li-O 2 cells reach 34,738 mAh g −1 and cycle stably for 208 cycles. Aprotic Li-O 2 batteries require efficient bifunctional oxygen electrocatalysis, yet ORR and OER impose conflicting demands on oxygen-intermediate adsorption and product desorption. Herein, we construct a symmetry-broken Mn-doped Co 3 O 4 /RuO 2 heterointerface on carbon cloth to couple catalytic shunting with self-adaptive interfacial bonding. Mn incorporation reinforces Co-O-Ru coupling and generates asymmetric Co δ⁺ -O-Ru δ⁻ units, as verified by XPS, XAS, and theoretical calculations. The resulting interfacial polarization spatially divides the oxygen-redox pathway: electron-enriched Ru sites preferentially promote O₂ adsorption/activation for ORR, whereas electron-deficient Co sites facilitate Li₂O₂ decomposition/desorption for OER. Meanwhile, in situ Raman spectroscopy and theoretical bond-length analysis reveal reversible metal-oxygen bond elongation/contraction during discharge/charge, enabling temporal adaptation of interfacial bonding to evolving intermediates. This spatial shunting and temporal self-adaptation synergistically mitigate the adsorption-desorption conflict, improve Li 2 O 2 reversibility, and maintain efficient charge-transfer pathways. Consequently, the Mn-Co 3 O 4 /RuO 2 cathode achieves a low overpotential of 0.37 V, a high discharge capacity of 34,781 mAh g −1 , and stable cycling for 208 cycles. This study provides a shunt-adaptive heterointerface strategy for multistep oxygen electrocatalysis. Download: Download high-res image (275KB) Download: Download full-size image
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ChemSusChem
·
2026
·Vol. 19
·期 17
·e70999
·
IF 5.9
Huaisheng Qin,Jiawei Chen,Xin Song,Jian Wang,Zongmin Zheng,Yang Feng,Jianmin Zhang
To address the safety issues associated with traditional liquid lithium-ion batteries and the performance deficiencies of single-component solid-state electrolytes, this work proposes a bioinspired strategy of designing composite solid-state electrolytes (CSE). A tree-root-like 3D skeleton containing dendritic micro- and nanopoly(vinylidene fluoride) (PVDF) fibers and uniformly distributed Li–Al layered double hydroxide or oxide (Li–Al-LDH or Li–Al-LDO) nanosheets was constructed and combined with poly(ethylene oxide) (PEO) electrolyte; hence, LDH@PVDF/PEO or LDO@PVDF/PEO CSE films were successfully prepared. LDO@PVDF/PEO electrolyte film exhibits high tensile strength (26.4 MPa) and Young’s modulus (625.3 MPa) and is able to maintain structural integrity at 100 °C. LDO@PVDF/PEO exhibits ionic conductivity of 1.21 × 10 −4 S cm and lithium ion transference number of 0.41 at 50 °C, both higher than those of PEO, LDO/PEO, and LDH@PVDF/PEO. In addition, its electrochemical stability window extends to 4.9 V, demonstrating its potential for use with high-voltage cathodes. Li/(LDO@PVDF/PEO)/LiFePO 4 cells were assembled and tested, showing excellent rate capability and capacity retention. In addition, Li/(LDO@PVDF/PEO)/Li symmetric cells demonstrated excellent cycling stability for over 1500 h at a current density of 0.1 mA cm −2 . This work provides an innovative biomimetic strategy for constructing high-performance CSE applicable to next-generation solid-state lithium metal batteries. Graphical A bioinspired strategy is proposed to construct a tree-root-like 3D skeleton of PVDF dendricolloids as hosts to achieve uniform dispersion of high-content (50 wt%) Li–Al-LDH/LDO nanosheets, breaking the filler agglomeration bottleneck in traditional composite solid-state electrolytes (CSE). This composite electrolyte design simultaneously realizes high filler content, uniform dispersion, continuous/fast Li + transport channels, and enhanced mechanical properties.
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高影响因子
Membranes
·
2026
·Vol. 16
·期 8
·270
·
IF 4.2
Yu-Tong Yin,Rui Jia,Zhen-Liang Xu,Sen Wang,Rui Han
Extracting lithium from salt-lake brines boasts distinct advantages including low production cost, low energy consumption and low environmental risks, and will serve as a primary supply source of lithium salts in the future. This trend raises higher demands for the efficiency and cost-effectiveness of lithium extraction technologies. Nanofiltration (NF) membranes, renowned for their superior discrimination between monovalent and divalent ions, have been extensively utilized to obtain Li + from Mg 2+ -rich saline brines. In this study, positively charged NF membranes aimed at Li + /Mg 2+ fractionation were fabricated via surfactant-interlayer-assisted interfacial polymerization (SIAIP). Catechol (CA) and polyethyleneimine (PEI) were utilized to construct the CA/PEI interlayer, and oil-phase dodecyl phosphate (DDP) was used as an additive for interfacial polymerization (IP). The strongly bonded CA/PEI nanoaggregates improved interlayer stability and preserved the positive charge of the double-layer membrane. DDP adsorbed piperazine (PIP) at the two-phase interface through electrostatic interactions, accelerating PIP diffusion and forming a thick polyamide (PA) layer with uniform pores. The combination of CA/PEI interlayer and DDP synergistically enhanced size-sieving and Donnan effects. With MgCl 2 and LiCl rejections of 97.9% and 36.2% respectively, the optimized membrane shows superior selectivity for Li + over Mg 2+ . Moreover, the membrane exhibited weak electrostatic screening and concentration polarization, showing excellent operational stability under varied Mg 2+ -Li + ratios and feed concentrations.
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PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Li Lei,Hua Minghao,Li Jiafeng,Guo Yun,Nie Yingjian,Zhang Boya,Hui Xiaobin,Zhang Luyuan,Zhang Zhiwei,Wang Rutao,Wang Chengxiang,Yin Longwei
Despite progress on noble-metal high-entropy alloy catalysts, noble-metal-free high-entropy alloy catalysts continue to face limitations in activity and stability. Atomic defect engineering holds promise for unlocking catalytic potential, yet efficient strategies for designing defects to simultaneously tailor electronic structures and enhance catalytic active sites in noble-metal-free high-entropy alloys remain challenging. Here, we report a general rule to drive twin formation via precisely tuning lattice strain in metallic nanomaterials. By modeling twin formation energy as a descriptor and employing a gradient-radius hetero-atomic doping strategy, we derive a generalized lattice strain-twin formation energy function that determines critical strain for twinning propensity. Guided by this principle, Ce is incorporated into CuCoNiMnMo nanoparticles, promoting coherent five-fold twinning along {111} planes. Twin boundaries generate high-activity sites by disrupting atomic symmetry and reducing coordination numbers, while modulating band width via altered orbital overlap. Meanwhile, strong Ce-O affinity forms an amorphous CeO x passivation layer on twinned noble-metal-free high-entropy alloy, triggering hetero-interfacial electron transfer. These effects synergistically optimize reaction kinetics. Consequently, the engineered catalyst achieves a 405-cycle lifespan in lithium–oxygen batteries and operates across −20 to 80 °C. Our study brings fundamental insights into defect engineering for electrocatalysis in energy conversion fields.
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Nanomaterials
·
2025
·Vol. 15
·期 12
·893
·
IF 4.3
Danyang Li,Can Liu,Shu Zhao,Fujie Li,Hao Li,Chao Wang,Xiu Song Zhao
Na-layered Li-containing Mn-based cathodes (NaxLiyMn1-yO2, NLMOs) with additional Na+storage ability resulting from the anionic redox reaction (ARR) hold great promise for sodium-ion batteries (NIBs). However, practical applications of NLMOs encounter challenges, such as migration of transition metal Mn, loss of lattice oxygen, and voltage decay during cycling. Here, we show that Cu plays an important role in enhancing the ARR via the reductive coupling mechanism (RCM). Results shows that a Cu2+/Fe3+modified NLMO sample delivers a Na+storage capacity as high as 174 mA h g−1at 0.2C, higher than that of a Zn2+/Fe3+modified NLMO sample (130 mA h g−1) and NLMO (154 mA h g−1). Both in situ and ex situ characterization results indicate that the obvious improvement in the electrochemical performance of the Cu2+/Fe3+modified NLMO is due to the additional overlaps between the Cu 3d and O 2p orbitals, which is beneficial for the RCM. As a result, the ARR is enhanced so as to increase the Na+storage capacity.
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PubMed
高影响因子
Small
·
2025
·
IF 12.1
Zhiheng Zou,Guang Yang,Haolan Li,Zhengsheng Yang,Bin Yao,Huanyong Liu
The application of polymer electrolytes in high-performance lithium metal batteries (LMBs) is usually restricted by their sluggish ion conduction, and inferior electrochemical stability compatibility with electrodes. Here, a cationic copolymer-based electrolyte PMC is developed. The copolymer of acryloyloxyethyl trimethylammonium bis(trifluoromethanesulfonyl)imide (AET⁺TFSI⁻), hexafluorobutyl acrylate (HFBA), and N, N′-methylenebisacrylamide (MBA) is synthesized by photopolymerization with carbonate electrolytes. The copolymer facilitates the lithium salt dissociation, adjusts Li + interaction with the polymer chain, regulates Li + solvation environment, and thus promotes fast ion transport (ionic conductivity of 7.19 × 10 −4 S cm −1 , Li + transference number of 0.84) and uniform Li deposition. PMC is electrochemically stable up 4.43 V versus Li + /Li and forms stable solid electrolyte interphase (SEI) with the anode, supporting long-term stability (1500 h) of lithium plating/stripping test at 0.2 mA cm −2 , 0.2 mAh cm −2 . The Li/PMC/LiFePO 4 cell shows excellent stability at 1C and a high specific capacity of 134.2 mAh g −1 even at 5C. PMC forms voltage-resisting, LiF-rich cathode electrolyte interface (CEI) with LiCoO 2 . The Li/PMC/LiCoO 2 cell shows excellent stability over 100 cycles with a capacity retention of 96%. Nonflammability of PMC and high safety of PMC-based pouch type cells are confirmed. This work provides a facile method toward high-performance and safe LMBs.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Xian Zhang,Yuhang Yang,Jiage Yu,Ziming Li,Youyong Zhang,Xiangsheng Xie,Zhongping Zhang,Yunfeng Guan,Yuqiang Pi,Feng Wang,Yu Ding
Various strategies have shown promise for addressing the volume expansion issue of silicon (Si)-based anode materials and enhancing their electrochemical performance, such as nanocrystallization and the use of carbon-encapsulated nano-Si particles. However, the agglomeration of nano-Si particles remains a challenge, limiting their full potential. In this study, Zn-MOF-74 was employed to improve the dispersion of nano-Si powder in a carbon source. Subsequently, polyacrylonitrile was used in an electrospinning process to prepare an effective coating, followed by heat treatment to prepare nitrogen-doped Si/C flexible anode composites. The influence of the coating degree on electrochemical performance was investigated, and the Si/C-MOF-74/CNFs-2 composite prepared with 30.3 wt% nano-Si particles exhibited specific discharge capacities of 1030.1 mAh·g −1 after 150 cycles at 0.1 A·g −1 , 610.8 mAh·g −1 after 300 cycles at 1.0 A·g −1 , and 409.1 mAh·g −1 after 300 cycles at 2.0 A·g −1 .
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高影响因子
Results in Engineering
·
2026
·
IF 9.4
Wenbin Fan,Lizhi Jiang,Bingqing Yan,Dahuan Liu,Huifang Li
Salt lake brines, key lithium resources, face challenges in efficient lithium extraction due to high Mg/Li ratios. This study investigated six organophosphorus extractants (OPEs) across neutral and acidic types. Using simulated high Mg/Li brines, it first proposed a "dual-site synergistic coordination model" to clarify how OPEs’ molecular structure, acidity, and coordination mode regulate lithium selectivity. Neutral OPEs (TOP>TIBP>TBP) outperformed acidic ones in extraction efficiency/selectivity by forming stable [LiLn]+[FeCl4]- complexes, while acidic OPEs showed poor performance due to Fe³⁺ chelation and H⁺/Mg²⁺ exchange. TOP enhanced Li⁺ selectivity by 20% vs TBP. This work establishes structure-acidity-performance correlations, guiding commercial extractant optimization and addressing high Mg/Li bottlenecks.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Huan Qiu,Shuang Shao,Yonggang Wei,Bo Li,Hua Wang
With the rapid development of the global new energy industry, the strategic importance of lithium is becoming increasingly prominent. Clay-type lithium ore has attracted growing attention as an emerging resource, and its development and utilization are vital for a sustainable supply of lithium. Herein, a combined process involving potassium sulfate (K2SO4) roasting and water leaching was proposed to extract lithium from the clay-type lithium ore. Parameter optimization experiments indicated that the optimal Li extraction reached 93% with a 50% K2SO4 dosage and was roasted at 850 °C for 1 h. Comparative analysis of the raw ore, roasted product, and leached residue confirmed that the lithium extraction mechanism primarily involves ion substitution between Li and K. Additionally, we innovatively introduced briquetting technology to enhance the K2SO4 roasting process, ultimately reducing the K2SO4 dosage from 50% to 30%. This was attributed to the fact that briquetting pretreatment increases the effective contact area between K2SO4 and lithium-bearing minerals, thereby enhancing the solid–solid reaction efficiency. This study confirms that briquetting-enhanced roasting is an effective method for reducing reagent consumption, providing valuable insight for the economic and efficient extraction of lithium from clay-type lithium ore.
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高影响因子
JOURNAL OF POWER SOURCES
·
2015
·
IF 6.217
Ruimin Yu,Wugang Fan,Xiangxin Guo,Shaoming Dong
Carbonaceous air cathodes with rational architecture are vital for the nonaqueous Li–O 2 batteries to achieve large energy density , high energy efficiency and long cycle life. In this work, we report the cathodes made of highly ordered and vertically aligned carbon nanotubes grown on permeable Ta foil substrates (VACNTs-Ta) via thermal chemical vapour deposition . The VACNTs-Ta, composed of uniform carbon nanotubes with approximately 240 μm in superficial height, has the super large surface area. Meanwhile, the oriented carbon nanotubes provide extremely outstanding passageways for Li ions and oxygen species. Electrochemistry tests of VACNTs-Ta air cathodes show enhancement in discharge capacity and cycle life compared to those made from short-range oriented and disordered carbon nanotubes. By further combining with the LiI redox mediator that is dissolved in the tetraethylene dimethyl glycol based electrolytes, the batteries exhibit more than 200 cycles at the current density of 200 mA g −1 with a cut-off discharge capacity of 1000 mAh g −1 , and their energy efficiencies increase from 50% to 82%. The results here demonstrate the importance of cathode construction for high-energy-efficiency and long-life Li–O 2 batteries.
研究领域:
能源材料
·
电化学
·
纳米材料
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电池技术
·
可持续能源
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高影响因子
Small
·
2023
·Vol. 19
·期 31
·2206597
·
IF 13.3
Wen-Chen Wang,Yi-Han Song,Guo-Duo Yang,Rui Jiao,Jia-Yu Zhang,Xing-Long Wu,Jing-Ping Zhang,Yan-Fei Li,Cui-Yan Tong,Hai-Zhu Sun
Electrolyte additive is an effective strategy to inhibit the uncontrolled growth of Li dendrites for lithium metal batteries (LMBs). However, most of the additives are complex synthesis and prone to decompose in cycling. Herein, in order to guide the homogeneous deposition of Li + , carbonized polymer dots (CPDs) as electrolyte additives are successfully designed and synthesized by microwave (M-CPDs) and hydrothermal (H-CPDs) approaches. The controllable functional groups containing N or O (especially pyridinic- N , pyrrolic- N , and carboxyl group) enable CPDs to keep stable in electrolytes for at least 3 months. Meanwhile, the clusters formed between CPDs and Li + through electrostatic interaction effectively guide the uniform Li dispersion and limit the “tip effect” and dendrite formation. Moreover, as lithiophilic groups increase, the strong electrostatic interference for the solvation effect of Li + in the electrolyte is formed, which induces faster Li + diffusion/transfer. As expected, H-CPDs achieve the ultra-even Li + transfer. The corresponding Li//LiFePO 4 full cell delivers a high capacity retention rate of 93.8% after 200 cycles, which is much higher than that of the cells without additives (61.2%) and with M-CPDs (83.7%) as additives. The strategy in this work provides a theoretical direction for CPDs as electrolyte additives used in energy storage devices.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
·
电池技术
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高影响因子
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