JOURNAL OF MEMBRANE SCIENCE
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2024
·
IF 8.4
Lin-Pei Guo,Zhi-Yuan Guo,Jing Wang,Pan-Pan Zhang,Zhi-Hui Huang,Zhi-Yong Ji
Monovalent selective ion-exchange membranes have been widely used for lithium extraction from brine with a high Mg/Li ratio. However, extracting Li + directly from raw brine with high Na/Li ratio remains a significant challenge. This study introduces a flexible lithium selective composite membrane by incorporating lithium-ion conductor with a quaternized polymer. The lithium-ion conductor provides pathways for lithium transmission, while the quaternized polymer effectively hinders the leakage of impurity cations. As a result, with the applied voltage of 2.0 V, the membrane achieved a high Li + /Na + separation coefficient of 35.48 with a Li + flux of 8.33 × 10 −10 mol cm −2 s −1 in the simulated Yiliping brine, which are 56.3 and 2.8 times higher than that of commercial monovalent selective cation exchange membrane (CIMS). We proposed a lithium transport mechanism involving an adsorption-dehydration-diffusion process through the membrane. Theoretical calculations indicate that the combined effects of significant adsorption energy (−0.47 eV), low dehydration energy (515 kJ mol −1 ), and low diffusion barrier (0.37 eV) leads to the high selectivity for lithium. These findings provide promising prospects for the large-scale preparation of lithium ion-selective membranes, enabling the direct lithium extraction from raw brine.
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DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2024
·
IF 4.1
Yunqin Yang,QiuMing Liang,Tianwei Lei,Huan He,Tianquan Liang
The capacity of Co-free Li-rich Mn-based layered oxide decreases rapidly due to the irreversible lattice oxygen lose and the crystal structure change. The sodium modified cathode materials are synthesized via the sol–gel method and the electrochemical properties are investigated. Specifically, the first discharge capacity of Li 1.18 Na 0.02 Mn 0.54 Ni 0.26 O 2 is 150.5 mAh·g −1 at 2C, demonstrating a capacity preservation rate of 94.1 % after 100 cycles. And the diffusion coefficient of Li 1.18 Na 0.02 Mn 0.54 Ni 0.26 O 2 is 1.2152 × 10 -15 , which is better than 1.3798 × 10 -16 of the undoped material. This work demonstrates that appropriate Na + doping can stabilize the crystal structure, increase the lithium layer spacing and reduce the irrevocable escape of lattice oxygen within material.
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CHEMICAL PHYSICS LETTERS
·
2024
·
IF 2.8
Yitong Sun,Danyang Zhang,Guozhu Ren,Shihong Zhou,Long Tian,Liang Zhou
Hydrothermal method is a common way to synthesize carbon quantum dots (CQDs), but perplexing by-products are non-negligible shortcoming. The small molecules associated with CQDs synthesis have drawn more attentions because of their luminescent property. In this work, Na-doped CQDs with excellent photoluminescent property as well as small molecules 4,4′-diaminoazobenzene with photochromism characteristic were prepared based on p -phenylenediamine and sodium hydroxide via one-step solvothermal method. The photoluminescence of as-synthesized Na-doped CQDs is tremendously influenced by H + ions, and CQDs-O - Na + structure existing in Na-doped CQDs was verified. At the same time, photochromism which was owing to by-product 4,4′-diaminoazobenzene with photochromic was observed and investigated. The absorption spectrum of 4,4′-diaminoazobenzene overlaps markedly with the photoluminescence spectrum of Na-doped CQDs and thus result in fluorescence internal filtering effect, by which the fluorescence causes interesting photochromism phenomenon. Furthermore, compared with conventional synthetic route of 4,4′-diaminoazobenzene, this method has the advantages of simplicity and metal-free.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Qin-Chao Wang,Zhaoquan Peng,Sha He,Hao Chen,Jinglong Du,Huilin Zang,Xiaoge Li,Xiuqin Zhan,Jie Han
Sodium superionic conductor NaTi 2 (PO 4 ) 3 has attracted significant interest as an anode material for sodium-ion batteries (SIBs). However, its practical application is hindered by its low inherent electrical conductivity, particularly at low temperatures. In this study, oxygen vacancies (V O ) were introduced into NaTi 2 (PO 4 ) 3 nanoribbons to enhance sodium storage performance at low temperatures. X-ray diffraction with Rietveld refinement, electron paramagnetic resonance, and X-ray photoelectron spectroscopy confirm that NaTi 2 (PO 4 ) 3 -2 nanoribbons (NTP-2) exhibit the richest V O concentration. These V O , which bridge TiO 6 octahedra and PO 4 tetrahedra, significantly enhance the antibonding interactions of Ti1–O2 and P1–O1 bonds, while stabilizing the bonding in NaTi 2 (PO 4 ) 3 . The energy barrier for Na + migration is reduced to 0.40 eV involving the V O . The optimized NTP-2 anode demonstrates superior low-temperature performance, maintaining a capacity of 106.1 mAh g −1 (about 96.1 % of its initial capacity) at −20 °C after 300 cycles. Additionally, the NTP-2 anode exhibits a moderate Na + diffusion coefficient of 1.47 × 10 –11 cm 2 s −1 at −20 °C. Furthermore, the Na 3 V 2 (PO 4 ) 3 //NTP-2 full cell retains a capacity of 64 mAh g −1 at −20 °C after 250 cycles, highlighting its potential for low-temperature applications. By integrating oxygen vacancies and nanoengineering, both electronic and ionic conductivities are significantly enhanced in NaTi 2 (PO 4 ) 3 , positioning promising applications for SIBs in low-temperature environments.
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DOI
PubMed
高影响因子
Energy Technology
·
2025
·
IF 3.6
Jiayu Peng,Zhiruo Zhang,Chengfang La,Tong Zhou,Yan Long,Rongcheng Hu,Yu Zheng,Lihong Xue,Wuxing Zhang
Prussian blue analogs are considered a prospective cathode material for sodium-ion batteries (SIBs), and the water molecule is an important factor affecting their crystal structure and sodium storage performance. This work synthesizes high-quality Prussian blue (PB-ANF) using the anhydrous Na 4 Fe(CN) 6 precursor in an anhydrous deep eutectic solvent. The introduction of water molecules during the synthesis process of PB leads to inhomogeneous crystal growth and more vacancy defects, whereas anhydrous synthesis effectively improves the structural integrity and stability. PB-ANF delivers a high specific capacity of 167 mAh g −1 at 0.5 C and 128 mAh g −1 at 30 C, and maintains 70% capacity after 500 cycles at 10 C. The outstanding sodium storage properties of PB-ANF originate from the robust structure formed without the disturbance of H 2 O during the crystal growth. This study offers an innovative anhydrous synthesis strategy for the design of high-performance Prussian blue as the cathode in SIBs.
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Advanced Energy Materials
·
2023
·Vol. 13
·期 27
·2300746
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IF 27.8
Yaoshen Niu,Zilin Hu,Bo Zhang,Dongdong Xiao,Huican Mao,Lin Zhou,Feixiang Ding,Yuan Liu,Yang Yang,Juping Xu,Wen Yin,Nian Zhang,Zhiwei Li,Xiqian Yu,Hao Hu,Yaxiang Lu,Xiaohui Rong,Ju Li,Yong-Sheng Hu
Na-ion batteries (NIBs) are promising for grid-scale energy storage applications. However, the lack of Co, Ni-free cathode materials has made them less cost-effective. In this work, Mg 2+ is successfully utilized to activate the oxygen redox reaction in earth-abundant Fe/Mn-based layered cathodes to achieve reversible hybrid anionic and cationic redox capacities. A high first charge capacity of ≈210 mAh g −1 with balanced charge–discharge efficiency is achieved without O-loss, showing a promising energy cost of $2.02 kWh −1 . Full cell against hard carbon anode without pre-sodiation shows energy density exceeding ≈280 Wh kg −1 with a decent capacity retention of 85.6% after 100 cycles. A comprehensive analysis of the charge compensation mechanisms and structural evolution is conducted. Voltage and capacity loss resulting from partially reversible Fe 3+ migration to the Na layer is confirmed, shedding light on further improvements for low-cost NIB cathodes in application scenarios.
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ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Zhaowei Sun,Ronghou Yao,Yingshan Huang,Jin Wu,Caiju Li,Jianhong Yi,Shizhao Xiong,Hongying Hou,Hengxing Ji
Sodium (Na) metal anode is the essential component of low-cost and high-performance Na metal batteries, yet its application is hampered by the unstable anode/electrolyte interface and inevitable growth of Na dendrites. In this work, a hierarchically porous artificial surface layer with sodiophilic silver (Ag) nanoparticles decorating the bottom surface (HPFA) is reported, which can regulate the uniform deposition of Na and eliminate the local overgrowth of dendrites on the surface of Na substrate. The dependence of Na deposition behavior on the hierarchical structure of surface layers is revealed by operando optical microscopy and multiphysics simulation, indicating the multifunction of the HPFA layer in stabilizing the Na anode during the electrochemical plating/stripping process. The as-fabricated HPFA/Na anode depicts prolonged life-span and improved stability in both ether and carbonate electrolytes, while the symmetric cell shows no sign of short-circuit even after 1200 h of repeated charging/discharging at 2 mA cm −2 with a high area capacity of 4 mAh cm −2 . Besides, when the HPFA/Na anode is paired with Na 3 V 2 (PO 4 ) 3 cathode and ether electrolyte, the full cell exhibits a low decay rate of ≈0.28% with a stable coulombic Efficiency value of ≈99.88% at 2 C rate.
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Journal of Energy Storage
·
2025
·
IF 9.8
Sikai Zhang,Rui Yin,Zhilong Tan,Minghai Zhao,Peng Zhou,Pei He,Runjing Zhang,Ziyan Wang,ZhiFeng Huang,Hai Hu,Li Liu
The mixed phosphate Na₄Fe₃(PO₄)₂(P₂O₇) (NFPP) via synergistic coordination of mixed [PO₄]/[P₂O₇] anion groups achieves a flat voltage plateau at 3.2 V (vs. Na + /Na) and a theoretical specific capacity of 129 mAh g −1 , but its practical application is still limited by its inherent low electronic conductivity. Through structural integration of polyanion-type cathode materials, this study innovatively designed and constructed hierarchical Na₄Fe₃(PO₄)₂(P₂O₇)@C mesoporous microspheres (NFPP@CMMS). The NFPP nanocrystals uniformly embedded in a three-dimensional interconnected meso porous carbon matrix (pore size distribution: 2–5 nm). Such hierarchical meso/micro-nano architectures provided expansive ion-exchange interfaces, accelerating Na + de/intercalation kinetics while enhancing electronic conductivity and mitigating structural collapse during cycling. Consequently, the NFPP@CMMS delivers exceptional reversible discharge capacity (121 mAh g −1 at 0.1C), outstanding rate capability (72 mAh g −1 at 50C), and superior cycling stability (90.70 % capacity retention after 3500 cycles at 5C). This triple-synergy strategy—combining nano-confinement effects, interconnected mesoporous channels, and carbon-encapsulated network—provides a novel pathway for developing practical sodium-ion battery cathodes.
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高影响因子
Advanced Energy Materials
·
2025
·
IF 26
Hongwei Bi,Xia Sun,Boyang Zhao,Ruiyi Li,Yongguang Zhang,Xiaoen Wang,Meng Zhang,Dan Luo,Zhongwei Chen
Na-ion layered oxides have attracted considerable interest due to their structural and electrochemical similarities to Li-ion counterparts, positioning them as promising cathode materials for sustainable energy storage. However, O3-type Na-ion layered oxides experience severe structural distortions and phase transitions during electrochemical cycling, which significantly deteriorate battery performance. In this study, an ultra-stable O3-type high-entropy doping cathode material is developed, NaNi 0.3 Mn 0.5 Fe 0.05 Li 0.05 Ti 0.05 Cu 0.05 O 2 (NMFLTC), for high-performance Na-ion battery. By partially substituted Ni of NaNi 0.5 Mn 0.5 O 2 (NM) with Fe, Li, Ti, and Cu, Na + diffusion and maintained the structural integrity of NMFLTC is successfully enhanced through the in situ formation of a high-entropy rock salt phase on the surface of the cathode material. This modification not only protects the cathode from structural degradation but also effectively mitigates phase transitions during cycling, leading to favored sodiation/de-sodiation electrochemistry and enhanced structure stability. Attributed to its structural superiorities, the high-entropy doping layered oxide cathode maintains 85.9% and 73.7% capacity retention at 0.1 C and 0.3 C after 200 and 600 cycles, respectively, which marks a significant improvement over traditional undoped NM cathodes. The proposed facile synthesis strategy enables the high entropy cathode material with possibility for large scale production, holding great promises to be utilized for practicalization.
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Journal of Cleaner Production
·
2025
·
IF 10
Yuting Lin,Yuran Li,Qiang Cao,Jianshan Wang,Yanbin Cui,Tingyu Zhu
The activity of carbonyl sulfur (COS) hydrolysis catalyst is inhibited by hydrogen chloride (HCl) and then restricts the application of blast furnace gas purification. The presence of HCl significantly reduces the COS hydrolysis conversion by destroying the Al-O bond and -OH. A novel Na and Ce supported Al-based catalyst (Na-Ce/Al 2 O 3 ) was designed to enhance the activity of COS hydrolysis in an HCl-containing atmosphere. It has been found that the addition of Ce creates oxygen vacancy, with three effects on promoting catalyst activity. The oxidation of hydrogen sulfide (H 2 S) is inhibited due to the occupation of the oxygen vacancy by HCl, reducing the sulfur species deposition. H 2 O can be adsorbed and dissociated on the oxygen vacancy to produce -OH group, improving COS hydrolysis. HCl can be preferentially anchored on the oxygen vacancy based on the adsorption energy, protecting -OH group. The improvement of HCl-resistance is essential for the Na-Ce/Al 2 O 3 hydrolysis catalyst to adapt to the complex atmosphere of blast furnace gas and increase the catalyst lifespan.
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Journal of Energy Storage
·
2024
·
IF 8.9
Yuxuan Wu,Yinda Li,Yunhao Lu,Jicheng Jiang,Aijun Zhou,Bo Xu,Xiongwen Xu,Jian Tu,Bin Pan,Xinbing Zhao,Jian Xie
Among some practical O3-type layered oxide cathodes, NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) features a high specific capacity and moderate cyclability. However, sluggish Na + transfer kinetics, low structural stability, and rapid capacity loss during long-term cycling, are still posing a challenge to commercial applications of this material. In this work, we propose a Mg and Cu co-doped O3-type NaMg 0.02 Cu 0.02 Ni 0.33 Fe 0.27 Mn 0.36 O 2 (MC-NFM) with a stable structure and good cycling stability. It was found that the Mn O bonds in MC-NFM are obviously reinforced by synergistic doping with small amounts of Mg and Cu, leading to enhanced structural robustness, decreased Na + migration barrier, and delayed O3-P3 phase transition. As a result, longer cycle life and enhanced rate performance are achieved. MC-NFM can yield a specific capacity of 142.1 mAh g −1 at 0.1C and 116.0 mAh g −1 at 5C, and maintain 83.6 % of its initial capacity after 400 cycles at 1C. This work provides a promising design of O3-type cathode for sodium-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
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高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Caiyan Yu,Linying Yang,Shuwei Sun,Di Chen,Yanfeng Yin,Hui Ying Yang,Ying Bai
Due to their high theoretical specific capacities and good structural compatibility, O3-layered oxides are considered as high-performance cathode candidates for sodium-ion batteries. However, serious side reactions and structural degradation during long-term cycling have greatly hindered their practical applications. Herein, O3-type NaNi 0.5 Mn 0.5 O 2 (NNMO) was prepared by partially substituting Ni 2+ with Cu 2+ and inducing CuO surface coating to enhance the structural stability without sacrificing the high capacity. In Particular, Cu 2+ incorporated at a molar ratio of 0.10 greatly improved the electrochemical performance of pristine NNMO. The NaMn 0.5 Ni 0.4 Cu 0.1 O 2 electrode exhibited a capacity retention of 64.5% after 300 cycles at 0.5 C. Microscopic and spectral studies revealed that the CuO coating layer suppressed detrimental side reactions upon cycling. Moreover, the bulk doping of Cu 2+ ultimately enhanced the structural stability by mitigating irreversible phase transitions. Hence, the integration of bulk Cu 2+ doping and CuO surface coating contributed to the increased structural stability and electrochemical performance of NNMO. The doping and coating dual-modification strategy established in this work effectively suppressed the side reactions and structural degradation of NNMO, and this work provides new insight into the effective design of electrode microstructures for use in high-performance batteries.
研究领域:
材料科学
·
能源存储
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高影响因子
危险品化学品经营许可证（带存储）