JOURNAL OF MATERIALS SCIENCE
·
2024
·Vol. 59
·期 44
·20671-20685
·
IF 3.5
Wang Jiashuai,Wang Chengdeng,Shi Haofeng,Wang Zhaokun,Wang Zhi,Li Jin peng,Chen Xiangrui,Gao Yan,Bai Zhiming,Yan Xiaoqin
The interface instability between a Li-excess cation disordered rocksalt cathode (DRX) and sulfide solid electrolyte (SE) results in rapid capacity fade. It is well established that cathode coatings are important to mitigate the side reaction at interfaces and therefore increasing the reversible specific capacity of all-solid-state Li batteries (ASSLBs). However, internal mechanism remains blurry, and the effects of the coating layer on electrode/electrolyte interface and capacity degradation have not been fully clarified. In this work, we used various coating materials on Li 1.2 Ni 0.3 Ti 0.3 Nb 0.2 O 2 (LNTNO) cathodes to investigate the behavior of the DRX/SE interfaces. The electrochemical performances are compared of uncoated, Li 2 ZrO 3 -coated, LiNbO 3 -coated, and Li 3 BO 3 (LBO)-coated cathodes in Li 6 PS 5 Cl-based ASSLBs in long charge–discharge processes. The results demonstrate that all coated LNTNO could improve specific capacity and cycle performance. Li 3 BO 3 is identified as a superior coating with good structural stability that exhibits observably large discharge capacity (206 mAh g −1 at 10 mA g −1 ), long cycle life (100 cycles, capacity retention of 78%), as well as outstanding rate property. Combined with ex situ X-ray photoelectron spectroscopy and scanning electron microscope, we can observe the side reactions at cathode/electrolyte interface can be mitigated after the LBO coating layer, enabling fast lithium transport dynamics. This work highlights the critical role of having an appropriate coating layer and offers a promising path to enhance the electrochemical behaviors of ASSLBs. Graphical abstract
研究领域:
材料科学
·
电化学
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DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 4
·1-13
·
IF 5.3
Yang Peixun,Zhu Xiaoyan,Lan Hangzhen,Wu Yichun,Pan Daodong
A solid-phase microextraction (SPME) Arrow and high-performance liquid chromatography-UV detector (HPLC-UV, detection at 225 nm) based method was developed for the selective determination of nine alkylphenols (APs) in milk. The functionalized mesoporous UiO-66 (4-meso-UiO-66) was utilized as the new coating material, which was synthesized by post-modification of pore-expanded UiO-66-NH 2 by an esterification reaction with 4-pentylbenzoic acid. It was fully characterized by X-ray photoelectron spectroscopy (XPS), fourier transformation infrared spectrometry, nitrogen sorption-desorption test, scanning electron microscopy, transmission electron microscopy, and X-ray diffractometer. The characterization results showed the ester groups and benzene rings were introduced into the 4-meso-UiO-66, and the mesoporous structure was predominant in the 4-meso-UiO-66. The extraction mechanism of 4-meso-UiO-66 to APs is the synergistic effect of Zr-O electrostatic interaction and the size exclusion effect resulting from XPS, selectivity test, and nitrogen sorption-desorption test. The electrospinning technique was utilized to fabricate the 4-meso-UiO-66 coated SPME Arrow and polyacrylonitrile (PAN) was used as the adhesive. The mass rate of 4-meso-UiO-66 to PAN and the electrospinning time were evaluated. The extraction and desorption parameters were also studied. The linear range of this method was 0.2–1000 μg L –1 with a coefficient of determination greater than 0.9989 under the optimal conditions. The detection limits were 0.05–1 μg L –1 , the inter-day and intra-day precision (RSD) were 2.8–11.5%, and the recovery was 83.6%–112%. The reusability study showed that the extraction performance of this new SPME Arrow could be maintained after 80 adsorption-desorption cycles. This method showed excellent applicability for the selective determination of APs in milk. Graphical abstract
研究领域:
分析化学
·
环境科学
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DOI
PubMed
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-14
·
IF 14.7
Ji Weijie,Luo Bi,Wang Qi,Yu Guihui,Zhang Zixun,Tian Yi,Zhao Zaowen,Zhao Ruirui,Wang Shubin,Wang Xiaowei,Zhang Bao,Zhang Jiafeng,Sang Zhiyuan,Liang Ji
Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a lithium metal negative electrode. However, fabricating a thin lithium electrode faces significant challenges due to the fragility and high viscosity of Li metal. Herein, through facile treatment of Ta-doped Li 7 La 3 Zr 2 O 12 (LLZTO) with trifluoromethanesulfonic acid, its surface Li 2 CO 3 species is converted into a lithiophilic layer with LiCF 3 SO 3 and LiF components. It enables the thickness control of Li metal negative electrodes, ranging from 0.78 μm to 30 μm. Quasi-solid-state lithium-metal battery with an optimized 7.54 μm-thick lithium metal negative electrode, a commercial LiNi 0.83 Co 0.11 Mn 0.06 O 2 positive electrode, and a negative/positive electrode capacity ratio of 1.1 shows a 500 cycles lifespan with a final discharge specific capacity of 99 mAh g −1 at 2.35 mA cm −2 and 25 °C. Through multi-scale characterizations of the thin lithium negative electrode, we clarify the multi-dimensional compositional evolution and failure mechanisms of lithium-deficient and -rich regions (0.78 μm and 7.54 μm), on its surface, inside it, or at the Li/LLZTO interface.
研究领域:
材料科学
·
电化学
·
电池技术
·
固态电解质
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DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
·
IF 14.7
Xu Weiting,Jiang Jiayang,Chen Yujia,Tang Ning,Jiang Chengbao,Yang Shengxue
Two-dimensional (2D) dielectrics, integrated with high-mobility semiconductors, show great promise to overcome the scaling limits in miniaturized integrated circuits. However, the 2D dielectrics explored to date still face the challenges of low crystallinity, diminished dielectric constant, and the lack of effective synthesis methods. Here, we report the controllable synthesis of ultra-thin gadolinium oxychloride (GdOCl) nanosheets via a chloride hydrate-assisted chemical vapor deposition (CVD) method. The resultant GdOCl nanosheets display good dielectric properties, including a high dielectric constant (high-κ) of 15.3, robust breakdown field strengths ( E bd ) exceeding 9.9 MV/cm, and minimal gate leakage currents of approximately 10 −6 A/cm 2 . The top-gated GdOCl/MoS 2 field-effect transistors (FETs) exhibit commendable switch characteristics, a negligible hysteresis of ~5 mV and a subthreshold swing down to 67.9 mV dec −1 . The GdOCl/MoS 2 FETs can also be employed to construct functional logic gates. Our study underscores the significant potential of the 2D GdOCl dielectric for innovative high-speed operated nanoelectronic devices.
研究领域:
材料科学
·
纳米技术
·
电子学
·
半导体器件
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DOI
高影响因子
Nature Communications
·
2017
·Vol. 8
·期 1
·1-11
·
IF 12.124
Li Yuxiang,Yang Zaixing,Wang Yanlong,Bai Zhuanling,Zheng Tao,Dai Xing,Liu Shengtang,Gui Daxiang,Liu Wei,Chen Meng,Chen Lanhua,Diwu Juan,Zhu Lingyan,Zhou Ruhong,Chai Zhifang,Albrecht-Schmitt Thomas E.,Wang Shuao
Many environmental pollutants inherently exist in their anionic forms and are therefore highly mobile in natural water systems. Cationic framework materials that can capture those pollutants are highly desirable but scarcely reported. Here we present a mesoporous cationic thorium-based MOF (SCU-8) containing channels with a large inner diameter of 2.2 nm and possessing a high surface area of 1360 m 2 g −1 . The anion-exchange properties of SCU-8 were explored with many anions including small oxo anions like ReO 4
− and Cr 2 O 7
2− as well as anionic organic dyes like methyl blue and the persistent organic pollutant, perfluorooctane sulfonate (PFOS). Both fast uptake kinetics and great sorption selectivity toward PFOS are observed. The underlying sorption mechanism was probed using quantum mechanical and molecular dynamics simulations. These computational results reveal that PFOS anions are immobilized in SCU-8 by driving forces including electrostatic interactions, hydrogen bonds, hydrophobic interactions, and van der Waals interactions at different adsorption stages.
研究领域:
环境科学
·
材料科学
·
化学
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DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
·
IF 14.7
Li Yanhong,Zhao Wenchang,Zhou Ying,Tang Shuxian,Wang Shiyu,Zheng Yutong,Wang Zuankai,Zhu Pingan
The rebound of liquid droplets on solid surfaces exhibits behavior reminiscent of elastic spheres, albeit with distinct contact dynamics. While the rapid detachment of droplets from surfaces holds significant relevance for various applications, previous endeavors relying on engineered surfaces can only reduce the contact time to several milliseconds, primarily due to capillary effects dominating droplet bounce. Here, we present ultrafast rebound by designing heterogeneous core-shell droplets encapsulating a particle (DEP), which achieves an unprecedentedly short contact time of 0.3 ms and 0.05 ms with polydimethylsiloxane and glass particles, respectively. This remarkable contact-time reduction is universally applicable to diverse systems, including both water and oil droplets, elastic and rigid particles, super-repellent and superlyophilic surfaces, and is effective across a wide range of impact velocities. Beyond exhibiting liquid-like dynamics, DEP manifests solid-like behavior owing to asynchronized motions between the particle and the droplet, which effectively breaks down the dominance of capillarity. With systematic experimental and analytical studies, we delineate contact times in three bouncing regimes and identify critical conditions governing regime transitions. DEP amalgamates the bouncing dynamics of both solids and liquids, offering a robust and versatile strategy for tailoring contact time to suit diverse applications involving solid-liquid composite systems.
研究领域:
流体力学
·
材料科学
·
界面化学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
He Mengjie,Xu Zunzhu,Zou Weiwei,Wang Ran,Jin Xiaoxian,Jin Xin,Zhang Jiwen
Designing efficient catalysts is important for controlling the pollution of chlorinated volatile organic compounds (CVOCs). In this work, chlorobenzene (CB) was selected as the target pollutant. A novel (RuO 2 ) x -V 2 O 5 -MoO 3 /TiO 2 (denoted as Ru x -VMoTi, x = 1, 2, 3) catalyst was successfully synthesized by loading different contents of Ru onto V 2 O 5 -MoO 3 /TiO 2 (denoted as VMoTi) via the impregnation method. Activity tests showed that Ru loading significantly enhanced the catalytic performance. Among these, Ru 2 -VMoTi exhibited the best performance, with its T 90 dropping to 250 °C, CO 2 yield reaching 75% at 325 °C, and demonstrating good stability. A series of characterizations was performed on the catalyst. The results showed that the lattice defects induced by Ru loading promote increased formation of oxygen vacancies (O v ). Ru loading also increased the number of acidic sites and the low-temperature redox activity of the catalyst, thus enhancing the performance of CB catalytic oxidation. The catalytic oxidation pathway of CB and the promoting mechanism of Ru were further analyzed by in situ DRIFTS and GC–MS. This study provides new insights for designing efficient and stable catalysts for CVOCs through the metal synergistic strategy. Graphical abstract
The alternative text for this image may have been generated using AI.
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DOI
高影响因子
Nature Communications
·
2026
·
IF 18.1
Wenya Wu,Tingting Li,Tuo Zhao,Rui Qiao,Yong Li,Shengjie Chen,Zirui Jiang,Sai Zhang,Caiwang Mao,Junkai Deng,Jiangxuan Song
High-concentration electrolytes are promising candidates for high-energy-density lithium metal batteries, yet their practical application is hindered by sluggish ionic transfer and high costs. Here, we show an interfacial high-concentration electrolyte that overcomes these limitations by localizing 5 M LiTFSI electrolyte at the Li anode surface, while maintaining a 1 M electrolyte in the bulk. This approach is facilitated by a bi-continuous phase-separated polymer layer that provides physical confinement and leverages hydrogen-bonding and ion-dipole interactions to prevent salt diffusion from the interfacial layer into the bulk electrolyte. This design preserves the high ionic conductivity of the bulk electrolyte while ensuring sufficient Li + for rapid interfacial charge transfer. It also cuts lithium salt usage and associated costs by up to 70%, while retaining the benefits of high-concentration electrolytes, including the formation of a LiF-rich solid-electrolyte interphase. As a result, a 6.8 Ah Li | |NCM811 pouch cell delivers a specific energy of 506 Wh kg -1 at 0.1 C and maintains stable cycling over 200 cycles with 75.8% capacity retention at 0.5 C. This work demonstrates an effective electrolyte design that offers a cost-effective and sustainable pathway for high-energy-density lithium metal batteries. The practical application of high-concentration electrolytes are promising candidates for high-energy-density lithium metal batteries is hindered by sluggish ionic transfer and high costs. Here, authors show an interfacial high-concentration electrolyte (5 M LiTFSI) at the Li anode surface, maintaining a 1 M in the bulk, enabling a 506 Wh/kg Li-metal 6.8 Ah-pouch cell.
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DOI
PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Wang Cui-zhen,Huang Huisi,Hu Zhihui,Gao Longwei,Lin Zhi-qiao,Shi Ming,Song Zhiyong,Li Min,Wang Yueming,Chen Ke-Wei,Liu Yu,Ma Yuanhong,Chen Bo,Yan Qipeng,Zhang Zhi-Min,Wang Jian-bo
Gate residues, acting in concert with distal dynamic networks, are emerging as critical yet underexploited regulators of enzymatic catalysis. Here we show that conformational dynamics analysis of fluoroacetate dehalogenase RPA1163 reveals a gate-based allosteric pair (K181–W185) that governs substrate access and reactivity. Network engineering of this pair yields a double mutant with high turnover number for α -fluorophenylpropionic acid (turnover number > 2 × 10⁵), establishing gate-centric allostery as a generalizable design principle. Structural and molecular dynamics analyses show that the activity enhancement arises from stabilization of catalytically competent open states through long-range coupling. Extension of this strategy to three additional dehalogenases confirms the universality of gate-based dynamic rewiring. Leveraging this framework, we establish a robust biocatalytic platform for stereoselective synthesis of α -fluoro and α -hydroxy carboxylic acids, achieving high productivity (turnover number > 3.7 × 10⁶) and enabling decagram-scale preparation of pharmaceutically relevant intermediates with high yield and enantioselectivity. Together, these findings establish gate-residue allostery as a powerful concept in protein engineering, bridging conformational dynamics with translational biocatalysis.
✓ 已验证
DOI
PubMed
高影响因子
Bioresources and Bioprocessing
·
2026
·Vol. 13
·期 1
·57
·
IF 6.3
Liu Bohua,Guo Qingqing,Wang Shuo,Shi Ting,Lu Fuping,Zhang Yi-Heng P. Job
Trehalose 6-phosphate (T6P), often referred to as plant insulin, serves as a central signaling molecule that regulates carbon partitioning and sucrose flux in plants, thereby influencing key agronomic traits, such as grain yield and drought resilience. Foliar spraying of T6P has been shown to significantly enhance yield and stress tolerance of numerous grains and vegetables. To circumvent the dependency on coenzymes in natural T6P synthesis, we designed and validated an in vitro new-to-nature, coenzyme-free, minimal enzymatic pathway for the biosynthesis of T6P from maltose and polyphosphate. This three-enzyme cocktail contained maltose phosphorylase, trehalose 6-phosphate phosphorylase, and polyphosphate glucokinase, and did not involve any costly coenzymes, such as ATP or UDP. Through systematic optimization of experimental parameters (including pH, temperature, Mg²⁺, phosphate concentration, and enzyme ratios), a 93% molar yield of T6P was achieved from 10 g/L maltose. The scale-up of this in vitro bioprocess to a 100-mL bioreactor with 200 g/L maltose enabled the production of up to 541 mM T6P (i.e., 252 g/L T6P disodium salt) within two hours, corresponding to a very high volumetric productivity of 126 g/L/h. This study established a scalable and cost-competitive in vitro biomanufacturing of T6P. Chemical intervention based on timed foliar spraying of T6P to cultivated crops offers a simpler and safer agricultural practice compared to genetic modification of crops. Graphical abstract The alternative text for this image may have been generated using AI.
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DOI
PubMed
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2026
·
IF 1.7
Wang Guohua,Luo Xu,Tian Jie,Lv Wenbo,Zhang Jiale,Yi Zhuhu,Tong Jun,Li Shiyou
In this study, a novel phosphorus-doped kitchen waste biochar (P-KWBC) was prepared through sodium phosphate-assisted copyrolysis. This simple and low-cost adsorbent achieved a remarkable uranium adsorption capacity of 655.13 mg/g under weakly acidic conditions (pH = 4, 313.15 K), which was more than 500% greater than that of kitchen waste biochar. After five consecutive adsorption‒desorption cycles, the material maintained a high uranium removal efficiency of 90.93%. Quantitative mechanism analysis confirmed that ion exchange (41.09%), mineral precipitation (28.23%), π–π interactions (19.69%), and coordination (10.97%) dominated U(VI) removal. This work provides a waste-to-wealth strategy for simultaneous kitchen waste reuse and uranium-contaminated wastewater treatment.
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DOI
高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2026
·
IF 3.3
Zou Yutong,Zhao Jingyuan,Li Haixia
Antibiotic contamination in water bodies has necessitated effective and sustainable wastewater treatment strategies. In this study, durian shell-derived activated carbon (DSAC) was synthesized via pyrolysis combined with KOH activation, and its adsorption performance for antibiotics from aqueous solutions was systematically investigated. DSAC was characterized by FTIR, XPS, Raman, XRD, and BET. The results revealed that DSAC-3 exhibited a high surface area (3008 m 2 g −1 ) and a well-developed porous structure. This study investigated the effects of pH, initial antibiotic concentration, adsorbent dosage, and temperature on the adsorption capacity of DSAC-3 for CHL and TC. The maximum adsorption capacities for TC and CHL calculated by the pseudo-second-order kinetic model reached 581.7 mg g −1 and 425 mg g −1 , corresponding to removal efficiencies of 78% and 45%, respectively. Thermodynamic parameters indicated the spontaneity and exothermic character of the adsorption process. The plausible adsorption mechanism was proposed to be primarily dominated by pore-filling, π-π EDA interactions, and van der Waals forces, with hydrogen bonding and electrostatic interactions as secondary contributors. These findings suggest that DSAC demonstrates great potential as an effective, low-cost adsorbent for antibiotic removal from contaminated water.
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DOI
高影响因子
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