Journal of Energy Storage
·
2026
·
IF 10.7
Silun Luo,Juchen Li,Yuhan Li,Shaowei Zhang,Siyuan Liu,Chunming Xu,Rongzheng Ren,Wang Sun,Guang Pan,Chengyi Lu
Sodium-ion batteries (SIBs) are promising alternatives to lithium-ion batteries due to their low cost and abundant sodium resources; however, conventional liquid electrolytes suffer from safety issues and interfacial instability. Herein, a gel polymer electrolyte (TPU–TiO₂ GPE) was developed by incorporating 5 wt% TiO₂ nanoparticles into a thermoplastic polyurethane (TPU) matrix. The Lewis acidic centers of TiO₂ interact synergistically with polyurethane chain segments, reducing polymer crystallinity and enhancing chain mobility. As a result, the TPU–TiO₂ GPE exhibits higher room-temperature ionic conductivity (2.91 × 10 −4 S·cm −1 ) and tensile strength (32.7 MPa) than pristine TPU. Moreover, the TPU–TiO₂ GPE forms a stable and uniform solid–electrolyte interphase (SEI) on sodium metal, effectively suppressing dendrite growth. Na||Na symmetric cells demonstrate stable cycling for over 250 h at 0.2 mA·cm −2 , while Na||Na₃V₂(PO₄)₃ full cells retain 93.84% of their capacity after 280 cycles at 0.5C. The state of charge (SOC) of the full cells was estimated using a second-order RC equivalent circuit model combined with an extended Kalman filter (EKF). Compared with the pristine TPU system, the TPU–TiO₂ GPE exhibits smoother OCV–SOC characteristics and reduced polarization, leading to significantly improved SOC estimation accuracy. The voltage-model fitting RMSE is reduced from approximately 2.4 mV to 1.3 mV. This improvement enables more reliable SOC tracking across the entire SOC range. These results indicate that the TPU–TiO₂ GPE enhances both electrochemical performance and SOC predictability, providing a viable strategy for safe and intelligently managed sodium-ion batteries.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Xu Yuyan,Zhang Xinyue,Wan Yangyang,Qin Bingchao,Pei Jun,Liu Hong,Song Xiaoxue,Jiang Shutong,Sun Zhongti,Zhang Yuqiao,Zhang Long,Liu Yong,Yu Qian,Zhao Li-Dong,Li Shun,Zhang Jianming
Hydrogen peroxide (H 2 O 2 ) plays a crucial role in environmental remediation, chemical synthesis, and energy storage. Nevertheless, its industrial production is energy consuming with significant environmental burdens. Here we show a proof-of-concept thermoelectrocatalytic strategy for H 2 O 2 production directly from seawater, driven solely by low-grade waste heat. A low-temperature thermoelectric (TE) material, Na- and Pb-codoped SnSe, is designed as a catalyst that enables efficient H 2 O 2 generation under a moderate temperature gradient (Δ T ). This system achieves an H 2 O 2 production rate of 6.1 mmol g −1 h −1 from seawater under Δ T = 120 K, which is competitive with the representative photocatalytic systems. Experimental and theoretical analyses reveal that Na/Pb-codoping improves the TE properties, promotes charge carrier migration under Δ T , and promotes the oxygen reduction reaction toward H 2 O 2 formation. The naturally formed strong electric layer at the catalyst-seawater interface further promotes both reaction kinetics and thermodynamic driving forces. Our finding provides a sustainable route for H 2 O 2 production from seawater using waste heat and demonstrates great potential of TE-catalysis for waste heat utilization.
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高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Yiming Zhang,Zhipeng Li,Baihua Qu,Xing Shen,Le Tong,Jin Wang,Jingqin Cui,Xin Li,Qingshui Xie,Jingfeng Wang
Sodium metal, with its high theoretical capacity, low redox potential, and cost-effectiveness, presents a promising anode candidate for next-generation high-energy-density batteries. However, the development of Na metal anodes is significantly challenged by issues such as uncontrolled dendrite growth, uncontrolled volume expansion, and associated safety concerns. Designing and developing advanced materials to enhance the conductivity of sodium metal anodes and promote uniform sodium ion deposition are of urgent importance. Herein, a MXene-based hybrid material was developed by integrating MOF-derived Zn, Co, N, and C dopants with Ti3C2Tx MXene to serve as a hosting substrate for the Na metal anode. The MXene provided a conductive framework, while the MOF-derived dopants introduced sodiophilic sites, promoting uniform Na deposition and mitigating volume expansion. The optimized material demonstrated an average Coulombic efficiency of 99.99% over 3000 cycles and stable cycling for over 5000 h in symmetrical cells and maintained over 80% capacity retention at 3 C after 500 cycles in full-cell tests, highlighting its potential as a robust Na metal anode material.
研究领域:
材料科学
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电化学
·
能源存储
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DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yanyan Lei,Lingyan Xu,Yanze Wang,Lixiang Lian,Chongqi Liu,Yingming Wang,Lu Liang,Zhentao Qin,Shuai Han,Wei Zheng,Qinzeng Hu,Xiaowang Liu,Tao Wang,Wanqi Jie
As a novel lead-free perovskite derivative material, zero-dimensional Cs3Cu2I5 crystals exhibit remarkable optical properties and hold great application prospects in the field of radiation detection. To further enhance the scintillation performance and detection efficiency, we fabricated high-quality, centimeter-level Cs3Cu2I5:Na+ single crystals using a low-cost anti-solvent method. Na+ doping in the Cs3Cu2I5 lattice optimizes the photoluminescence quantum yield (PLQY) to 95%, which can be attributed to enhanced exciton–phonon coupling and boosted self-trapped exciton fraction. Compared to the intrinsic crystal, the energy resolution and light yield of Cs3Cu2I5:5%Na+ under 137Cs γ-rays are improved by 22% and 10.5%, respectively. Under X-ray excitation, Cs3Cu2I5:5%Na+ crystals exhibit stronger RL intensity, faster response speed, lower afterglow and lower detection limit. Based on excellent X-ray detection capability, a breakthrough spatial resolution of 25.6 LP per mm@MTF = 0.2 is achieved for the Cs3Cu2I5:5%Na+@PMMA flexible film. Cs3Cu2I5:Na+ crystals boast superior optical performance, exceptional detection capabilities, cost-effectiveness and eco-friendliness, rendering them a highly competitive candidate for high-resolution γ-ray detection and flexible X-ray imaging.
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高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Mengyang Cui,Shisheng Yuan,Bo Jin,Qing Jiang
Sodium-sulfur (Na-S) batteries are believed as the hopeful energy storage and conversion techniques owing to the high specific capacity and low cost. Nevertheless, unstable sodium (Na) deposition/stripping of Na metal anode, low intrinsic conductivity of sulfur cathode, and severe shuttling effect of sodium polysulfides (NaPSs) pose significant challenges in the actual reversible capacity and cycle life of Na-S batteries. Herein, a self-supporting electrode made of nitrogen-doped carbon fiber embedded with cobalt nanoparticles (Co/NC-CF) is designed to load sulfur. Meanwhile, gel polymer electrolyte (GPE) with high ion transfer ability is obtained by in-situ polymerization inside the battery. During the polymerization process, an integrated electrode-electrolyte and a continuous ion-electron conduction network in a composite cathode are constructed inside the Na-S battery. It is noteworthy that the designed GPE demonstrates superior ionic conductivity and effective adsorption of NaPSs that can significantly suppress the shuttle effect. Leveraging the synergistic interplay between the designed GPE and self-supporting cathode, the assembled quasi-solid-state (QSS) Na-S battery exhibits great cycling stability. These experimental results are further corroborated by COMSOL Multiphysics simulations and density functional theory (DFT) calculations, which mechanistically validate the enhanced electrochemical performance. The findings of this study offer new and promising perspectives for advancing the development of next-generation solid-state batteries.
研究领域:
材料科学
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能源存储与转换
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Xuan-Yu Yang,He-Jie Wang,Hao-Nan Chen,Li-Juan Yue,Fei-Long Gong,Ke-Feng Xie,Shi-Zhong Wei,Yong-Hui Zhang
Electronic modulation of Pt sites is of great significance in catalytic reaction involved chemical engineering process. Alkali metal doping is a promising strategy to modify the d orbit of Pt, which can effectively affect the reaction between material and adsorbates, however, the relationship is still unclear. Here, we have rationally designed Pt-modified Na-doped WO 3 nanorods, and the electronic modulation of Pt can be finely modified by Na doping. The Pt-Na/WO 3 -Ar nanorods exhibit excellent H₂S sensing performance, with high response (R a /R g = 701 @ 1 ppm), low operating temperature (110 °C), and detection limit as low as 2.42 ppb. Experimental and theoretical results indicate that the introducing of Na effectively enhances the interaction between Pt nanoparticles (NPs) and WO 3 . Additionally, Na doping successfully modulate the d-band center of Pt, optimizing the adsorption and desorption processes during sensing. The synergistic effects of these components enable the Pt-Na/WO 3 -Ar sensor to exhibit outstanding H₂S sensing performance. Notably, the fabricated sensors are further used to monitor the hydrogen sulfide (H 2 S) of halitosis biomarkers, which holds significant application potential in environmental protection and medical diagnostics.
研究领域:
材料科学
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传感器技术
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纳米材料
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表面化学
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环境监测
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医学诊断
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DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-15
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IF 15.7
Bai Ruilin,Yao Yu,Lin Qiaosong,Wu Lize,Li Zhen,Wang Huijuan,Ma Mingze,Mu Di,Hu Lingxiang,Yang Hai,Li Weihan,Zhu Shaolong,Wu Xiaojun,Rui Xianhong,Yu Yan
Employing appropriate single-atom (SA) catalysts in room-temperature sodium-sulfur (Na-S) batteries is propitious to promote the performance, whereas a universal designing strategy for the highly-efficient single-atom catalysts is absent. In this work, we adopt natural language processing techniques to screen the potential single-atom catalysts, then a binary descriptor is constructed to optimize the catalyst candidates. Atomically dispersed cobalt anchored to both nitrogen and sulfur atoms (SA Co-N/S) is selected as an ideal catalyst to significantly facilitate sulfur reduction reaction. The sulfur cathode catalyzed with SA Co-N/S almost realizes complete transformation, and the corresponding pouch cell exhibits satisfactory performance with high mass loading. In-situ X-ray absorption spectroscopy reveals the dynamical interactions between SA Co-N/S and sulfur species in the sulfur reduction reaction. Our work provides a method to select the preferable SA catalyst and to understand the interfacial catalysis dynamics in the sustainable Na-S systems.
研究领域:
储能技术
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材料科学
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电化学
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计算化学
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电池技术
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DOI
PubMed
高影响因子
Advanced Energy Materials
·
2021
·Vol. 11
·期 11
·2003854
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IF 29.368
Zhaohua Wang,Xin Feng,Ying Bai,Haoyi Yang,Ruiqi Dong,Xinran Wang,Huajie Xu,Qiyu Wang,Hong Li,Hongcai Gao,Chuan Wu
Hard carbon (HC) is the most promising anode material for sodium-ion batteries (SIBs), nevertheless, the understanding of sodium storage mechanism in HC is very limited. As an important aspect of storage mechanism, the steady state of sodium stored in HC has not been revealed clearly to date. Herein, the formation mechanism of quasi-metallic sodium and the quasi-ionic bond between sodium and carbon within the electrochemical reaction on the basis of theoretical calculations are disclosed. The presence of quasi-metallic sodium is further confirmed with the assistance of a specific reaction between the sodiated HC electrode and ethanol, by analyzing the reaction products with Fourier-transform infrared spectroscopy, gas chromatography, and nuclear magnetic resonance. Moreover, based on the specific chemical reaction, the composition of fully sodiated HC is estimated to be NaC 6.7 , and the corresponding capacity of sucrose-derived HC is calculated to be 333.4 mAh g −1 in SIBs, matching well with the experimental result. This work helps to reveal the steady state of sodium and improve the understanding of sodium storage behavior in HC from the aspect of charge transfer. In addition, the proposed method is also expected to pave the way to investigate sodium storage mechanisms in other electrode systems.
研究领域:
材料科学
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电化学
·
储能
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高影响因子
Energy & Environmental Science
·
2024
·Vol. 17
·期 20
·7958-7968
·
IF 32.4
Yaoshen Niu,Zilin Hu,Huican Mao,Lin Zhou,Liguang Wang,Xiaobing Lou,Bo Zhang,Dongdong Xiao,Yang Yang,Feixiang Ding,Xiaohui Rong,Juping Xu,Wen Yin,Nian Zhang,Zhiwei Li,Yaxiang Lu,Bingwen Hu,Jun Lu,Ju Li,Yong-Sheng Hu
Na-ion batteries (NIBs) are emerging as a promising alternative to Li-ion batteries (LIBs). To align with sustainability principles, the design of electrode materials must incorporate considerations for abundant and environmentally friendly elements, such as redox-active Fe. Despite its appeal, the enduring challenge of Fe migration in layered cathodes remains inadequately addressed over decades. Here, we propose a “seat-squatting” strategy via Li-substitution to fundamentally suppress Fe migration. Li is strategically introduced to migrate first, occupying available migration sites without inducing structural damage and effectively raising the activation energy for Fe migration. Experimental and theoretical validation using O3-Na0.83Li0.17Fe0.33Mn0.5O2 (NaLFM) demonstrates a robust suppression of irreversible Fe migration. As a result, the NaLFM cathode delivers enhanced structural and electrochemical cycling stability. This work illustrates a compelling strategy to curb irreversible Fe migration in NIBs, offering a pathway for the development of stable and cost-effective layered oxides based on Fe redox centers.
研究领域:
材料科学
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电化学
·
能源存储
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高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Shaoming Feng,Lei Fan,Hao Zhou,Haomiao Li,Shuai Yan,Weixin Zhang,Yewei Guo,Bo Li,Kai Jiang,Kangli Wang
Liquid metal batteries (LMBs) with Na anode exhibit the advantages of low-cost, high-safety, long-lifespan, and easy scale-up, making them promising for large-scale energy storage applications. However, the high solubility of Na and its sluggish kinetics in discharge products result in severe self-discharge and low cathode utilization, significantly hindering the development of Na-based LMBs. In this study, a stable Na-Li dual cation LMB with metal Sb cathode is designed based on the in-situ displacement reaction between Na and molten salts of lithium halides electrolyte. This design effectively suppresses the self-discharge of the battery, and the multistage discharge mechanism of the dual-cation system enhances cathode utilization. Moreover, the self-healing property of the Sb cathode protects the electrode against volume expansion and degradation, enhancing cycling performance. The Na-Li| LiCl-KCl-NaCl |Sb cell was constructed and operated at 485 °C. The battery retained 97.02 % of its capacity after 800 cycles at 0.6 C, with a decay rate of 0.00373 % per cycle. Furthermore, the battery achieves a cathode material utilization of 89 % at 0.6 C. These improvements effectively promote the development and application of LMBs.
研究领域:
材料科学
·
能源存储技术
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高影响因子
FUEL
·
2024
·
IF 6.7
Wenxia Zhang,Hongtao Zhang,Mohamed Abbas,Juan Zhang,Zhijun Huang,Sibudjing Kawi,Jiangang Chen
The advancement of large-scale and environmentally-friendly solid-state synthesis methods is of paramount importance for the production of precipitated catalysts, notably Fe-based catalysts utilized in Fischer-Tropsch synthesis (FTS). In this study, we present an innovative solvent-independent, wastewater-free solid-state approach for the synthesis of highly efficient Fe/ZrO 2 catalysts, elucidating the mechanisms of promotion within this specific methodology. The prepared catalysts underwent rigorous evaluation under industrially-relevant FTS conditions (230–270 °C, 20 bar, and WHSV = 5400 mL/(g cat ⋅h)). A comprehensive suite of characterization techniques was employed to establish the intricate interplay between catalytic activity and structural attributes. We meticulously examined the impact of Na as an alkali promoter and the role of transition metals (Cu and Mn) in enhancing FTS catalytic performance. The catalytic outcomes obtained clearly demonstrate the pivotal role of the synergistic interaction between Mn and Na within the Na-Mn-Fe/ZrO 2 catalyst system in driving the FTS reaction. This synergism significantly enhances FTS performance, yielding an impressive CO conversion rate (89.91 %) while maintaining low selectivity to CH 4 (7.75 %). The incorporation of Mn and Na into the catalyst matrix enhances the dispersion of Fe 2 O 3 , thereby improving the reducibility of Mn/Fe oxides and elevating the electron density on the catalyst surface. These factors facilitate the formation of active Hägg iron carbide (χ-Fe 5 C 2 ), stimulating chain propagation and ultimately leading to the generation of valuable C 5+ hydrocarbon products, which underscores its potential as an optimal candidate for future industrial applications in Fe-based Fischer-Tropsch synthesis.
研究领域:
催化
·
化学工程
·
环境科学
·
材料科学
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Dongya Ma,Shuzhi Yan,Xinru Xue,Miao Niu,Hongliang Li,Deyu Bao,Chao Zhao,Xiujun Li,Peng Wang,Rong Li,Lei Huang,Miao Yu,Sitong Jia,Yanjiao Wang,Xiao Li,Zhen Zhang,Tie Wang
Hydrogen-bonded organic frameworks (HOFs) become promising candidates in the capacitive deionization (CDI) technology due to their prominent redox reaction. Herein, the novel CNTs@HOF-DAT composite with the three-dimensional interwoven-network structure is prepared by the facile solvothermal synthesis and applied to the CDI technology for the first time. The synergistic effect between the special structure of HOF-DAT (multiple hydrogen bonds, abundant heteroatoms and π-π interactions) and the high conductivity of CNTs stimulates more redox active sites for the ion storage and accumulation in the CNTs@HOF-DAT composite. This makes the CNTs@HOF-DAT electrode have a high specific capacitance (152.5 F∙g −1 ) and an improved pseudo-capacitance contribution (49 %). Also, the ion removal capacity (16.33 mg∙g −1 ) of the CNTs@HOF-DAT electrode greatly surpasses that of the single HOF-DAT electrode (3.23 mg∙g −1 ) and CNTs electrode (8.77 mg∙g −1 ). Significantly, the desalination mechanism of the CNTs@HOF-DAT composite electrode is explored in terms of the electrode configurating mode and zero-charge potential of the three prepared electrodes, as well as the redox reaction of the HOF-DAT molecules, which manifests that the CNTs@HOF-DAT electrode is suitable as the cathode of the CDI cell.
研究领域:
材料科学
·
环境工程
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DOI
高影响因子
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