JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Zhiyong Yang,Guofang Zhang,Ruiqin Zhang,Lu Bai,Shilong Sun,Yiming Li,Zhuocheng Liu,Feng Hu,Jianyi Xu,Ruihua Guo,Yanghuan Zhang
The BaCe 0.98 M 0.02 O 3 (M = Ce, Y, Li, Mn, Ni) solid solution was successfully synthesized via a combustion method. The microstructure and spectra characteristics were analyzed systemically. The X-ray diffraction (XRD) results showed that the structures of the BaCeO 3 -based materials kept cubic perovskite single-phase structure. The findings from the Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) analyses revealed that the doped samples exhibited smaller grain sizes and the doped elements are distributed uniformly. The spectral analyses revealed that the doped samples contain higher contents of oxygen vacancies in the lattices. The electrochemical hydrogen storage characteristics of the samples demonstrated that the doped samples possess greater discharge capacities compared to pure BaCeO 3 . The Y-doped sample demonstrated superior electrochemical performance, delivering a remarkable specific capacity of 377 mA h/g (hydrogen content of 4.56 %) with excellent capacity retention of 371 mA h/g after 50 cycles. Moreover, the incorporation of Y ions not only significantly enhanced the rate capability but also effectively suppressed the self-discharge behavior. The hydrogen storage mechanism was speculated. The characteristics of hydrogen storage are significantly influenced by the lattice parameters, the concentration of oxygen vacancies and defects, as well as the nature of the doped ions.
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DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Lu Gao,Yue Miao,Xiaowen Huo,Yingying Zhao,Zhaojing Jing,Xiuling Liu,Haitao Wang,Ning Fan,Qiuying Jia,Kai Ren,Jun Li,Na Chang
The key to lithium extraction from brine lies in achieving efficient Li + /Mg 2+ separation, which imposes stringent requirements on the precision and efficiency of separation technologies. Among existing techniques, nanofiltration (NF) membranes stand out as a critical approach due to their superior ion-sieving capabilities, yet conventional NF membranes still face challenges in improving Li + /Mg 2+ separation ratios. In this study, the nonionic surfactant, Sorbitan monooleate dehydrate (Span80) was introduced to regulate the diffusion behavior of piperazine (PIP) molecules by reducing interfacial tension. Results from molecular dynamics simulations, ultraviolet spectroscopy experiments, and positron annihilation lifetime spectroscopy analysis revealed that Span80 enhances the uniform diffusion of PIP molecules at the interface, optimizes the membrane pore size distribution, and significantly improves Li + /Mg 2+ separation performance. The fabricated NF membrane achieved a Li + /Mg 2+ separation ratio of 94.28 under a Mg 2+ /Li + mass ratio of 100:1. This study introduces an innovative strategy for tailoring interfacial reactions via surfactant modulation, providing new insights into the design of high-performance NF membranes for lithium extraction from brine.
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高影响因子
CORROSION SCIENCE
·
2026
·
IF 8.5
Bingzhi Li,Bingce Liu,Enyu Guo,Keqiang Su,Zhihao Zhou,Yibo Ouyang,Xingchen Li,Huijun Kang,Zongning Chen,Xiao-Bo Chen,Tongmin Wang
Magnesium-lithium (Mg-Li) alloys are promising lightweight materials for engineering applications, but their use is limited by poor wear and corrosion resistance. To address those challenges, micro-arc oxidation (MAO) coatings were fabricated on Mg-Li alloy LA81 using electrolytes containing conductive ceramic nanoparticles (TiBCN). Results suggest that TiBCN enhances electrolyte conductivity and altering the arc discharge behavior, thereby reducing overall porosity of the resultant MAO coatings. Comprehensive characterization including measurements of coating thickness, microstructure, triboelectrochemical and corrosion resistance identify 2.5 g/L TiBCN as the optimal concentration. This formulation exhibits enhanced corrosion resistance, wear resistance and a notably low pore density. Three-dimensional evolution of corrosion in the optimized MAO coating was examined using synchrotron X-ray computed tomography. In corrosive environments, the combined effects of corrosion and expansion of corrosion products alter size, shape, and number of microdefects in MAO coatings over time. These changes were driven by the interactions between localized corrosion propagation and the accumulation and expansion of corrosion products. Ultimately, neighboring micro-defects merged, forming interconnected through-pores and accelerating MAO coating degradation.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Yanhua Zhang,Yuhang Mei,Xinglong Gao,Yumei Xiao,Zijun Tang,Xing Xiang,Jiadong Deng
The lithium dendrite problem of Li 7 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) solid electrolyte restricts the practical application and development of all-solid-state lithium batteries (ASSLBs). Herein, a LiPON interlayer with Li + conductive and electron non-conductive dynamic properties is constructed at the Li/LLZTO interface. Results show that the electronic conductivity of solid electrolyte after LiPON modification decreased by nearly three orders of magnitude, indicating that it has good ability to hinder electron conduction . The interlayer enhances the wettability between the Li metal anode and LLZTO, resulting in a decrease of battery resistance from 3400 Ω to 700 Ω. The critical current density of the ASSLBs increase from 0.1 mA cm −2 to 1.2 mA cm −2 at room temperature, and the battery cycle number increase from 31 h to over 1000 h. XPS deep etching results show that the LiPON/LLZTO interface has good electrochemical stability. The Kelvin probe force microscope displays a sharp increase in potential within the LiPON interlayer, indicating its successful hindrance of electron conduction to the solid electrolyte. The effective inhibition of lithium dendrites growth is due to LiPON can promote the Li + transmission from LLZTO solid electrolyte to Li anode, and also hinder the electron conduction to LLZTO to form lithium dendrites.
研究领域:
材料科学
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电化学
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能源存储
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固态电池
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界面工程
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高影响因子
JOURNAL OF RARE EARTHS
·
2024
·Vol. 43
·期 3
·543-551
·
IF 5.2
Lang Ruan,Zeyun Zhou,Yi Hu,Ruifeng Peng,Xiaoyan Chen,Ming Cheng,Zhi Zhou,Mao Xia
The technology of solid-state lighting has developed for decades in various industries. Phosphor, as an element part, determines the application domain of lighting products. For instance, blue and red-emitting phosphors are required in the process of plant supplementing light, arrow-band emitting phosphors are applied to backlight displays, etc. In this work, a Bi 3+ -activated blue phosphor was obtained in a symmetrical and compact crystal structure of Gd3SbO7 (GSO). Then, the co-doping strategy of alkali metal ions (Li + , Na + , and K + ) was used to optimize the performance. The result shows that the photoluminescence intensity is increased by 2.1 times and 1.3 times respectively by introducing Li + and K + ions. Not only that, it also achieves narrow-band emitting with the full width of half-maximum (FWHM) reaching 42 nm through Na + doping, and its excitation peak position also shifts from 322 to 375 nm, which can be well excited by near-ultraviolet (NUV) light emitting diode (LED) chips (365 nm). Meanwhile, the electroluminescence spectrum of GSO:0.6 mol%Bi 3+ ,3 wt%Na + matches up to 93.39% of the blue part of the absorption spectrum of chlorophyll a . In summary, the Bi 3+ -activated blue phosphor reported in this work can synchronously meet the requirements of plant light replenishment and field emission displays .
研究领域:
材料科学
·
光学工程
·
固体照明
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光电子学
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农业光生物学
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高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Fusheng Yin,Zhijun Zhang,Yuling Fang,Chunwen Sun
NASICON structured Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) has attracted widespread attention due to its simple preparation and excellent stability towards water and air. However, there are many problems such as high interfacial resistance between electrolyte and electrodes as well as low ionic conductivity of LATP. In this paper, the effect of F doping on Li ion diffusion channel in electrolyte was investigated in detail by density functional theory (DFT) calculation. The results show that F doping can effectively reduce the formation energy of Li vacancy. Meanwhile, it can also reduce the diffusion energy barrier and induce the high-energy Li ions at 36f site to carry out synergistic diffusion via various ways at the same time. Then, the F-doped LATP electrolyte was prepared successfully. Its ionic conductivity is as high as 0.358 mS cm −1 at room temperature . At the same time, the solid-state lithium metal batteries with F-doped LATP electrolyte shows a high capacity of 136.2 mA h g −1 at 0.5C and excellent cyclability for 200 cycles. These results demonstrate that F doping may be an effective way to improve the performance of LATP electrolyte.
研究领域:
材料科学
·
电化学
·
储能技术
·
固态电池
·
计算材料科学
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高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Jingguang Yi,Shuai Shi,Qi Liu,Tianxiang Yang
All-solid-state lithium batteries (ASSLBs) empolying sulfide solid electrolyte and lithium metal anode can afford improved energy density and safety. However, their large-scale application is hampered by the rigidity of ceramic–based electrolyte and the inevitable growth of lithium dendrites . Herein, a novel, flexible, high-conductivity and free-standing sulfide electrolyte membrane (Li 6 PS 5 Cl-polypropylene carbonate6, (LPSCl-PPC6)) with a thickness of 60 μm is prepared via methodology of blade coating and hot pressing, which exhibits a high Li + conductivity (3.1 × 10 −3 S cm −1 at 25 °C) and a wide electrochemical window (4.7 V vs Li + /Li) at 25 °C. Additionally, a bifunctional interphase with Li-Zn/LiCl is implanted on lithium metal surface to enhance the stability of electrolyte/lithium anode, which effectively prevents the growth of lithium dendrites and the internal short circuit of lithium symmetric battery. Benefiting from the synergistic effect, the assembled ASSLBs of S-CNTs/LPSCl-PPC6/Li-Zn/LiCl|Li and LLZO@NCM93/LPSCl-PPC6/Li-Zn/LiCl|Li exhibit high initial capacity of 1183.5 mAh g −1 (193.6 mAh g −1 ) and exceptionally cyclic stability with capacity retention of 89.2% over 150 cycles at 0.05C (93.2% over 100 cycles at 0.1C). This highly conductive sulfide-based composite electrolyte and interface engineering provides a promising strategy for achieving high performance ASSLBs.
研究领域:
材料科学
·
储能技术
·
电化学
·
固体离子学
·
锂电池
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Chunlin Chi,Fan Liu,Shuai Jiang,Taoliang Zhou,Dawei Chen,Yujue Wang,Bin He,Qian Zhao
Interfacial engineering is a decisive factor in stabilizing layered oxide cathodes for sodium-ion batteries (SIBs). Here, a synergistic Li/Mg/Si tri-doping strategy is introduced to simultaneously modulate the bulk lattice and interfacial chemistry of a P2-type Na 0.7 Li 0.03 Mg 0.05 Ni 0.25 Mn 0. 6 Si 0.07 O 2 (LMNMS) cathode. The dopants expand the c-axis lattice (11.195 Å) and strengthen surface transition metal (TM)-O covalency, yielding improved Na + diffusion kinetics and interfacial stability. X-ray photoelectron spectroscopy (XPS) and in situ Raman analyses reveal reduced surface oxygen vacancies (15% vs. 22% in the undoped sample) and suppressed electrolyte-induced oxygen redox, effectively mitigating the P2 → O2 phase transition. Electrochemical impedance spectroscopy confirms a 45% decrease in charge-transfer resistance, indicating enhanced interfacial charge transport. Benefiting from this coupled bulk-surface optimization, LMNMS delivers a high reversible capacity of 165 ± 3.2 mAh g −1 at 0.1C, an excellent rate performance (92 ± 2.5 mAh g −1 at 5C), and 90.5 ± 1.8% capacity retention after 200 cycles. This work highlights how multi-site doping tailors both the electronic and chemical nature of electrode interfaces, offering a design paradigm for high-performance and interface-stable sodium-ion batteries.
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PubMed
高影响因子
DESALINATION
·
2026
·
IF 9.8
Mengyao Chen,Yangxiang Huang,Yeqiang Lu,Congjie Gao,Lixin Xue
Polyamide/polyethylene (PA/PE) nanofiltration (NF) membranes based on polyethyleneimine (PEI) had demonstrated excellent Li + /Mg 2+ selectivity, but showing trade-off between their permeance and Li + /Mg 2+ selectivity. In this work, a novel cross-substrate counter diffusion (CSCD) method was introduced to grow and secure ZIF-L particles in the PA layers. Specifically, rather than directly contacting the PA layers containing Zn(II) cation (PA/Zn) with an aqueous solution of 2-methylimidazole (2-MIM) ligand from the top sides, 2-MIM ligand molecules were diffused across the PE substrate from the bottom sides to react with Zn(II) secured on the top sides of PA layers. Compared with the top-down method, the bottom-up approach had yield PA/ZIF-B NF membranes with higher surface roughness, larger average pore size and narrower pore size distribution. Notably, the pure water permeance of PA/ZIF-B membrane was increased by 2.6-folds to 15.1 L·m −2 ·h −1 ·bar −1 at a high Li + /Mg 2+ separation factor (S Li/Mg ) of 16.5, breaking the trade-off performance upper bound between water permeance and Li + /Mg 2+ separating selectivity and outperforming most of the reported TFN NF membranes.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.6
Guofa Sun,Ziwei Pan,Man Zhang,Shaozhi Yang,Peng Yang,Jincheng Chen,Xie Fu,Wenqiang Lu
Lithium‑sulfur (Li-S) batteries are a highly promising energy storage technology due to their exceptionally high theoretical energy density. However, their practical implementation faces significant challenges, including sluggish redox kinetics and the troublesome shuttling of lithium polysulfides (LiPSs). In this work, a hierarchical TiO 2-x nanostructure was utilized as the sulfur host. Sulfur was uniformly integrated into the structure through a melt-diffusion infiltration process. The introduced oxygen vacancies in TiO 2-x provide strong chemical adsorption of polysulfides, effectively suppressing the shuttle effect and reducing active material loss. The nanoflower architecture-composed of interconnected nanosheets-offers a high specific surface area (104.45 m 2 g −1 ) and large pore volume (0.4698 cm 3 g −1 ). This design not only increases the number of accessible active sites but also helps accommodate volume changes during cycling. Furthermore, electron paramagnetic resonance (EPR) confirms the abundance of oxygen vacancies, which act as catalytic sites to enhance polysulfide anchoring and accelerate Li 2 S nucleation kinetics. As a result, the TiO 2-x -CNS@S cathode achieves a high initial discharge capacity of 1398 mAh g −1 at 0.1C and demonstrates remarkable long-term cycling stability. At 1C, it maintains an ultralow capacity decay rate of 0.054% per cycle over 1000 cycles. This dual-functional host design offers an effective and scalable strategy to simultaneously improve reaction kinetics and cycling durability in high-performance Li-S batteries.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Ju Huang,Yunchen Ge,Guanjie Yan,Qizhi Chen,Lei Shi,Qilin Tong,Jiali Tong,Meng Qin,Yongbin He,Yan Cheng,Zhaozhe Yu
LiMn0.6Fe0.4PO4 (LMFP) cathodes possess high operating voltages, yet their application is severely hindered by sluggish electron/lithium-ion transport kinetics and interfacial instability during cycling. To address these challenges, this work proposes a surface engineering strategy utilizing a boron-doped carbon coating to modulate the interfacial kinetics of LMFP. The introduction of boron modifies the local electronic structure, inducing defects and holes that facilitate Li-ion migration, while simultaneously maintaining the layer’s physical continuity and protective function against manganese dissolution. Within the investigated doping range, the 2% B-doped sample exhibits the best equilibrium between rate performance and cyclability, retaining 95.66% capacity after 100 cycles at 1 C and 93.20% after 300 cycles at 5 C, significantly outperforming the pristine sample (82% and 74%, respectively). In situ electrochemical impedance spectroscopy (EIS) combined with distribution of relaxation times (DRT) analysis reveals that the coating synergistically reduces interfacial charge-transfer resistance throughout the charge–discharge process. Consequently, this study defines an optimal boron-doping window to successfully navigate the trade-off between achieving rapid Li-ion kinetics and ensuring robust interfacial stability in olivine cathodes.
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PubMed
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Mengyao Li,Liangtao Yang,Xinyao Bian,Hailiang Cao,Min Zhao,Peizhi Liu,Zhi Zheng,Wei Deng,Junjie Guo
The practical implementation of lithium‑sulfur (Li - S) batteries is critically hindered by the polysulfide shuttle effect and the sluggish conversion kinetics of lithium polysulfides (LiPSs). Herein, we design a freestanding interlayer comprising bimetallic phosphide nanoparticles embedded within interconnected porous carbon nanofibers (NiCoP@PCNF). In this architecture, the conductive PCNF skeleton functions as a physical barrier and facilitates rapid electron/ion transport, while the polar NiCoP nanoparticles serve as robust chemical anchors for LiPSs. Notably, density functional theory calculations and electrochemical analyses reveal that NiCoP acts as an efficient electrocatalyst by modulating its d-p band center, which optimizes electron transfer and substantially accelerates the liquid-solid conversion of LiPSs. Benefiting from this synergistic adsorption-catalysis effect, Li-S cells equipped with the NiCoP@PCNF interlayer deliver outstanding electrochemical performance, including a high initial capacity of 1652 mAh g −1 at 0.1C, an excellent rate capability of 1013 mAh g −1 at 2C, and exceptional cycling stability with a retained capacity of 757 mAh g −1 after 200 cycles at 3.0C. This work highlights a strategic design for multifunctional interlayers through the integration of conductive carbon frameworks with bimetallic phosphides, offering a promising pathway toward high-performance Li-S batteries.
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高影响因子
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