Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123651
·
IF 7.5
Ying Hu,Yanan Wei,Qian Zhang,Xinyu Xu,Wenmeihui Zhao,Rongmei Liu,Guixiang Qian,Zhongliang Tian,Xiangwan Lai,Chao Yang
The extraction of lithium from high Na/Li ratio salt lakes brine remains challenging due to the similar physicochemical properties of Li⁺ and Na⁺. In this work, a LiMn 2 O 4 (LMO)-Zn mixed-ion battery system was constructed for electrochemical lithium extraction from high Na/Li brine. The electrochemical behavior and lithium extraction performance of the system under different Na⁺ concentrations, temperatures, and current densities were systematically investigated. The results demonstrated that the LMO-Zn system maintained stable electrochemical performance in 0.1 M LiCl + 4.0 M NaCl electrolyte. At discharge rates from 0.1 C to 0.75 C, the discharge potential only slightly decreased from 2.03 V to 1.94 V, indicating favorable rate capability and electrode stability. The titanium felt current collector exhibited an initial discharge capacity of 124.3 mAh g⁻¹ and a charge capacity of 139.5 mAh g⁻¹ . ICP analysis revealed that the Li⁺ concentration in the ZnCl 2 solution increased from 0 to 2.75 mg L⁻¹ after electrochemical cycling, while the Li⁺ concentration in the Li/Na mixed solution decreased from 10 to 6.87 mg L⁻¹ , confirming effective lithium extraction and enrichment behavior. Furthermore, XRD, XPS, SEM, and GITT analyses demonstrated the good reversibility and structural stability of the LMO electrode during cycling. This work provides a promising strategy for lithium extraction from high Na/Li ratio salt lakes brine.
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Nature Communications
·
2026
·
IF 18.1
He Mengjie,Liu Yunsen,Wang Zhiling,Fu Yongzhu,Tang Shuai
The development of wide-temperature-range batteries is essential for applications under extreme weather conditions and scientific endeavors such as deep-sea and space exploration. Sodium (Na) metal batteries offer the advantage of weak ion–solvent interactions, which promote easier desolvation at low temperatures compared with lithium batteries. Weakly solvating electrolytes can further decrease desolvation energy barriers, thereby enhancing electrochemical reversibility at low temperature. However, conventional weakly solvating solvents are highly volatile, posing safety concerns for high-temperature applications. Herein, we redesign the molecular structure of typical weakly solvating ethers to reinforce intermolecular interactions, thereby increasing their boiling points while preserving their low solvation characteristics. As a result, the Na metal batteries exhibit stable performance at current densities of at least 0.5 mA cm⁻ 2 across a wide temperature range from −40 to 70 °C. Moreover, the kinetic study highlights the previously overlooked yet critical role of solvent intermolecular interactions in influencing the desolvation barrier at low temperatures, in addition to ion–solvent interactions. Therefore, optimizing the intermolecular interactions of weakly solvating solvents is proposed to be a facile and promising strategy for achieving wide-temperature Na metal batteries.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Hening Zhao,Lingzhu Zhang,Dingren Ma,Yuyao Zhang,Jinfeng Chen,Chenqiang Yang,Haiying Yu
Na + doping in ZnWO 4 simultaneously introduces oxygen vacancies and compressive lattice strain. • The synergy injects electrons into W 5d orbitals, shifting the d-band center upward by 0.29 eV. • This optimized electronic structure enhances the adsorption and activation of both O 2 and HCHO. • The energy barrier for the rate-limiting formate oxidation step is significantly reduced. The efficiency of photocatalytic formaldehyde (HCHO) mineralization is often limited by insufficient adsorption and activation of O 2 and HCHO on conventional semiconductor surfaces. In this work, we demonstrate a ‘kill two birds with one stone’ strategy—Na + doping in ZnWO 4 —which simultaneously introduces oxygen vacancies and compressive lattice strain. This synergistic defect and strain engineering injects electrons into the W 5d orbitals, creating electron-rich W sites and shifting the d-band center upward. The resulting electronic structure enhances the adsorption and activation of both O 2 and HCHO, with adsorption energies reaching −2.08 eV and − 1.02 eV, respectively, significantly reducing the energy barrier of the rate-limiting formate oxidation step from −0.26 eV to −1.45 eV. Consequently, Na-ZnWO 4 achieves markedly improved reactive oxygen species generation, an 80.2% HCHO removal efficiency, and a high CO 2 yield under simulated solar light, greatly outperforming pristine ZnWO 4 . This work demonstrates a co-regulation strategy for defects and strain via cation doping as an effective route toward high-performance photocatalytic materials. Download: Download high-res image (157KB) Download: Download full-size image
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Han Wang,Jiaqi Huang,Liqiang Wu,Ruizhi Liu,Wenwei Zhang,Weihao Wang,Siqi Lyu,Wenrui Huang,Shuai Dong,Dandan Yu,Renheng Wang,Bin Zhou,Daojun Yang,Weili Song,Rui Wen,Hua Wang
The accumulation of inactivated or ‘dead’ Na is the primary cause of rapid capacity decay in anode-free sodium batteries (AFSBs). These dead Na is typically encapsulated by a passivated solid electrolyte interphase (SEI), which renders it electrochemically inactive. Current strategies have primarily focused on suppressing dead Na formation, yet its reactivation has rarely been explored. Here, we reactivate dead Na by electrochemically reconstructing the interface through a tailored overdischarge method, thereby recovering the lost capacity and extending cycle life. Specifically, this reactivation process selectively dissolves the passivating SEI surrounding dead Na to restore its activity, while simultaneously rebuilding a thin, homogeneous, and NaF‑rich interphase that ensures subsequent stable cycling. Collectively, by periodically using the method, an Ah-level anode-free pouch cell realizes 3,800 cycles at 2C with 83.5% capacity retention, representing a 343% enhancement over the best cyclability in the previous report. Besides, a practical 5 Ah anode-free pouch cell (181.1 Wh kg −1 ) also exhibits stable cycling over 2,500 cycles with 93.7% capacity retention, comparable to the performance of commercial LiFePO 4 batteries, demonstrating great application potential. Moreover, with proven effectiveness across diverse electrolytes and cathodes, this dead Na reactivation method offers a universal and effective pathway toward practical realization of AFSBs.
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ENVIRONMENTAL RESEARCH
·
2026
·
IF 8.2
Pengyu Liang,Xixuan Zou,Mandi Liu,Xinhua Xu,Shuchi Zhang,Dandan Ma,Donglei Wu
Groundwater is a critical component of water resources and plays a fundamental role in maintaining ecological stability and supporting economic development. Industrial activities constitute a major source of groundwater contamination. Controlling groundwater pollution in industrial production facilities has become a key priority in environmental management. In this study, we present a high-performance ex situ electrochemical remediation system designed to treat contaminated saline (Cl–Na type) groundwater from an operational coastal chemical park. The system, optimized with a Ti/RuO 2 –IrO 2 anode and Ni cathode, achieved complete removal of ammonium nitrogen (100%) and converted 79% of total nitrogen to harmless N 2 within 45 min at a current density of 5.0 mA cm −2 . Energy consumption was as low as 1.2 kWh·m −3 . Remediation efficacy was primarily driven by in situ–generated reactive chlorine species (RCS) (e.g., Cl•, Cl 2 • - , ClO•), whose formation was significantly enhanced by the presence of bicarbonate (HCO 3 − ). Notably, the system exhibited superior removal efficiency for persistent humic acid–like dissolved organic matter (DOM) compared with biodegradable protein-like DOM, resulting in a 71% reduction in overall fluorescence intensity. The system maintained robust performance across different real groundwater samples (energy consumption: 1.2-2.1 kWh·m −3 ) and demonstrated excellent electrode stability. These results demonstrate that the technology is an economically viable and effective approach for on-site remediation of contaminated groundwater in challenging coastal industrial environments.
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DESALINATION
·
2025
·
IF 9.8
Zhangfa Yu,Panmin Yang,Chunxi Hai,Xuequn Li,Hongbo Sun,Yuan Zhou,Longgang Li,Xudong Yu,Wanghai He,Ying Zeng
Li 1.6 Mn 1.6 O 4 -type adsorbents show significant promise for lithium resource extraction from complex saline lakes due to their exceptional selectivity and high theoretical adsorption capacity of 72.3 mg g −1 . However, their practical application is markedly constrained by rapid manganese dissolution during elution with dilute HCl, primarily attributed to Jahn-Teller effect-induced Mn O structural distortion. To address this limitation, a synergistic S 2− /Na + co-doping strategy was employed: Na + stabilizes the spinel structure via Na O bond formation, while S 2− doping enhances charge density. In situ XRD analysis elucidated the structural evolution of the doped material. Experimental results demonstrate that H 1.6 Mn 1.6 O 4 modified with 1 % Na 2 S achieves an adsorption capacity of 39.6 mg g −1 in 300 ppm LiOH solution, with manganese dissolution loss below 2 %, and attains a single-pass lithium extraction efficiency of 99.5 % from oilfield brine containing 100 ppm Li + . Furthermore, the influence of Na + concentration on Li + adsorption selectivity was investigated for the first time, and the underlying mechanism was summarized. This finding is highly significant for efficient lithium extraction from various brines.
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FOOD CHEMISTRY
·
2025
·
IF 9.8
Dangfeng Wang,Yifan Hou,Likun Ren,Yang Jiang,Yuqiong Meng,Rui Ma,Shulin Wang,Zhiteng Liu,Xuepeng Li,Fangchao Cui,Tingting Li,Jianrong Li
Annually, up to 25 % of food globally spoils due to microbial pollution. Traditional antibacterial nanomaterials had issues like high dosage, lacked of catalytic activity, and instability. Therefore, Na/N-doping carbon dots nanozymes (Na/N-CDs nanozymes) was developed to fight spoilage organisms. The structural stability of Na/N-CDs nanozymes was enhanced due to the change of lattice structure. Na/N-doping with the peroxidase-mimetic activity was 4.3 times higher than reported HRP activity. It showed strong antimicrobial activity by catalyzing H₂O₂ into ROS, with a MIC of 0.03 mg·mL −1 . And the catalytic activity was over 32 times higher than precursor substances. In contrast, Fe and Cu-doping CDs with a MIC of 0.5 mg·mL −1 had no nanozyme activity. The results of antibacterial and spoilage assays showed that Na/N-CDs nanozymes antibacteria by damaging cell membranes, degrading DNA, and inhibiting key enzymes, thereby extending the shelf life of salmon fillets by 3 days, indicating potential in aquatic product preservation.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yan Meng,Yuanheng Wang,Qingjiang Liu,Xingyu Chen,Enhui Wang,Weihua Chen,Hongji Pan,Jinghao Zhao,Xin Li,Jia-Yan Liang
Local high concentration electrolytes (LHCEs) have great potential for sodium-ion batteries (SIBs) owing to their anion-enriched solvation structures that facilitate the formation of inorganic-rich solid electrolyte interphases (SEIs). However, insufficient solvent-cation interactions in solvation structure inherently lead to limited ion migration kinetics and compromised electrolyte thermodynamics. Here, we report a novel LHCE design employing methyl 2,2,2-trifluoroethyl ester (FEMC) as a functional diluent. The dipole-dipole interaction between FEMC and ethylene carbonate (EC) induces the electrons polarization of fluorine atoms toward carbonyl group in FEMC, thereby strengthening the coordination ability of FEMC. The solvation structure, maintaining more anion participation, with enhanced FEMC diluent coordination significantly improves ion migration kinetics and derives a stable inorganic-rich (NaF/Na x PO y ) SEI, effectively mitigating cell interfacial concentration polarization. This reconfigured LHCE enables hard carbon (HC) anode to deliver a remarkable specific capacity of 287.00 mAh g −1 with 80.1 % capacity retention over 1000 cycles under 0.1 A g −1 and achieve extraordinary cycling stability over a wide temperature range. This work provides a new insight into designing electrolyte solvation structure via intermolecular dipole-dipole interactions.
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ADVANCED MATERIALS
·
2024
·
IF 27.4
Hongliang Li,Jingyang Wang,Sheng Xu,Aoyuan Chen,Hangyu Lu,Yan Jin,Shaohua Guo,Jia Zhu
Na-ion batteries (NIBs) are sustainable alternatives to Li-ion technologies due to the abundant and widely-distributed resources. However, the most promising cathode materials of NIBs so far, O3 layered oxides, suffer from serious air instability issues, which significantly increases the manufactural cost and carbon footprint because of the long-term use of dry rooms. While some feasible strategies are proposed via case studies, universal design strategies for air-stable cathodes are yet to be established. Herein, the air degradation mechanisms of O3 cathodes are investigated via combined first-principles and experimental approaches, with bond dissociation energy proposed as an effective descriptor for predicting air stability. Experimental validations in various unary, binary, and ternary O3 cathodes confirm that the air stability can indeed be effectively improved via simple compositional design. Guided by the predictive model, the designed material can sustain 30-day air-storage without structural or electrochemical degradation. It is calculated that such air-stable cathodes can significantly reduce both energy consumption (≈4 100 000 kWh) and carbon footprint (≈2200-ton CO 2 ) annually for a 2 GWh NIBs manufactory. Therefore, the fundamental understandings and universal design strategy presented open an avenue for rational materials design of NIBs toward both elemental and manufactural sustainability.
研究领域:
材料科学
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能源存储
·
可持续技术
·
电化学
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Nano-Micro Letters
·
2025
·Vol. 18
·期 1
·72
·
IF 36.3
Song Penghui,Chen Suli,Guo Junhong,Wu Junchen,Lu Qiongqiong,Xie Haijiao,Wang Qingsong,Liu Tianxi
An electrostatic engineering strategy is proposed to regulate the Na + coordinated structure by employing a fluorinated metal–organic framework as an electron-rich model.
The abundant electron-rich F sites can accelerate Na-salt disassociation while forcing anions into Na + coordination structure though electrostatic effect to weaken the Na–O coordination, thus promoting rapid Na + transport.
Anion-rich weak Na + solvation structure is achieved and contributes to a highly stable inorganic-rich solid–electrolyte interphase, significantly enhances the interfacial stability toward Na anode.
Impressively, Na/Na symmetric cell delivered stable Na plating/stripping over 2500 h, and the assembled all-solid-state sodium metal batteries demonstrated stable performance of over 2000 cycles under high rate of 2 C with capacity retention nearly 100%.
研究领域:
电化学
·
材料科学
·
能源化学
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固态离子学
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电池技术
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JOURNAL OF MASS SPECTROMETRY
·
2015
·Vol. 50
·期 1
·212-219
·
IF 2.379
Huixin Wang,Bing Wang,Zhonglin Wei,Hao Zhang,Xinhua Guo
A good understanding of gas-phase fragmentation chemistry of peptides is important for accurate protein identification. Additional product ions obtained by sodiated peptides can provide useful sequence information supplementary to protonated peptides and improve protein identification. In this work, we first demonstrate that the sodiated a 3 ions are abundant in the tandem mass spectra of sodium-cationized peptides although observations of a 3 ions have rarely been reported in protonated peptides. Quantum chemical calculations combined with tandem mass spectrometry are used to investigate this phenomenon by using a model tetrapeptide GGAG. Our results reveal that the most stable [a 3 + Na − H] + ion is present as a bidentate linear structure in which the sodium cation coordinates to the two backbone carbonyl oxygen atoms. Due to structural inflexibility, further fragmentation of the [a 3 + Na − H] + ion needs to overcome several relatively high energetic barriers to form [b 2 + Na − H] + ion with a diketopiperazine structure. As a result, low abundance of [b 2 + Na − H] + ion is detected at relatively high collision energy. In addition, our computational data also indicate that the common oxazolone pathway to generate [b 2 + Na − H] + from the [a 3 + Na − H] + ion is unlikely. The present work provides a mechanistic insight into how a sodium ion affects the fragmentation behaviors of peptides. Copyright © 2015 John Wiley & Sons, Ltd.
研究领域:
生物化学
·
质谱分析
·
理论化学
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Advanced Science
·
2022
·Vol. 9
·期 14
·2200744
·
IF 17.521
Ziqi Zhang,Zaifa Wang,Long Zhang,Di Liu,Chuang Yu,Xinlin Yan,Jia Xie,Jianyu Huang
All-solid-state (ASS) Na–S batteries are promising for a large-scale energy-storage system owing to numerous merits. However, the high conversion reaction barrier impedes their practical application. In this work, the basic mechanism on how Se catalyzes the conversion reaction in the Na–S batteries is unraveled. The sodiation/desodiation of Na–SeS 2 nanobatteries are systematically evaluated via in situ transmission electron microscopy (in situ TEM) with a microheating device. The real-time analyses reveal an amorphous Na–Se x S y intermediate phase appears during the direct conversion from SeS 2 to Na 2 S, and a reverse reaction succeeds at 100 °C with a prior formation of Se. The absence of polysulfides and a much lower desodiation temperature in contrast to Na–S nanobatteries demonstrate that the Se incorporation significantly lowers the conversion reaction barrier. According to these findings, the ASS SeS 2 batteries using a Na 3 SbS 4 solid electrolyte (SE) are assembled using various SE:C ratios in the composite cathodes to investigate the effect of the ion and electron transport on the electrochemical properties, including the effective transport properties, MacMullin number, and the tortuosity factor. The obtained results in turn confirm the findings from the in situ TEM. These findings are applicable to optimize other S-based active materials and improve their utilization.
研究领域:
材料科学
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电化学
·
能源存储
·
纳米材料
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固体离子学
·
电池技术
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