Journal of Energy Storage
·
2025
·
IF 9.8
Mengyuan Xue,Tao Wang,Yuyang Zhang,Sheng Liu,Tianying Yan
Aqueous zinc ion batteries (AZIBs) are considered promising candidates for next-generation energy storage systems due to their high safety and low cost. However, their practical development is hindered by uncontrolled dendrite growth and side parasitic reactions at the Zinc (Zn) anodes. In this study, we introduce the adsorptive additive ammonium perfluoro (2-methyl-3-oxahexanoate) (APFA) to regulate Zn deposition behavior. The electrostatic repulsion between PFA − anions and the high-charge-density Zn protrusions during the cathodic process promotes preferential adsorption of PFA − anions on relatively flat Zn surfaces. This selective adsorption accelerates local reaction kinetics via electric double layer (EDL) modulation, leading to a levelled Zn surface. Furthermore, the surface activity of PFA − repels free H 2 O molecules from the Zn surface, thereby suppressing water-induced side reactions. With only a trace amount of APFA (1 mM) added to the electrolyte, Zn Zn symmetric cells exhibit stable cycling for over 1600 h at a current density of 1 mA cm −2 and 1 mAh cm −2 . This study presents a facile and effective strategy for stabilizing Zn anodes in AZIBs.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2017
·
IF 4.233
Ni Cheng,Qi Kang,Jianhong Xiao,Na Du,Li Yu
Studies on supramolecular gel aggregates via supramolecular interactions are very fascinating and impressive. The interactions of gelator with solvent and inorganic salt can functionalize, activate, or control the properties of supramolecular gels. A lot of work on this area has been done, but all these contributions are only at an early stage. In this work, we tuned the gel formation conditions and properties by using low-molecular-weight gelator (LMWGs), amide-functionalized imidazolium-based surfactant , viz., N-cetyl-N′-acetamido imidazolium bromide ([N-C 16 , N′-CONH 2 -Im]Br), in different solvents and with inorganic salt additives. Under chemical (Cu 2+ /H 2 O 2 ) and physical (temperature) stimuli, gel-sol phase transition occurred in the gel formed from 2 wt% [N-C 16 , N′-CONH 2 -Im]Br in the solvent formamide (FM). Accompanied with increased mechanical strength of the gels, morphology alternation from initial straight stripe-shaped structures to curly belt-like textures was observed in the addition of CuBr 2 . From Small-angle X-ray scattering (SAXS) measurements, bilayer units with interdigitated hydrocarbon tails of the gelator were testified to appear in the gels. Comparative experiments demonstrate that the π-π interaction, H-bonding, and hydrophobic interaction between the gelator molecules are the main driving forces for the gelation . The low-cost gelator, facile preparation, and coordination-driven assembly process make the robust gel a good candidate in various applications, such as material templates and drug deliveries.
研究领域:
化学
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材料科学
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DOI
PubMed
高影响因子
ChemElectroChem
·
2017
·Vol. 5
·期 4
·637-642
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IF 4.136
Zhaohan Hao,Feng Tao,Zhikui Wang,Ximing Cui,Qinmin Pan
Graphical Self-help : An omni-healable aqueous lithium-ion battery, fabricated by integrating all of the electroactive components into polymer networks cross-linked through dynamic borate ester bonding, can self-repair its electrodes and electrolyte simultaneously after mechanical breakage. It can also be tailored into complicated patterns without significant deterioration in lithium-storage properties. Reliability and safety are critical issues for portable power sources aiming for next-generation electronics. However, most lithium-ion batteries (LIBs) will fail to work or will cause safety problems after physical damage or violent deformation. Here, an omni-healable aqueous LIB, which can self-repair its electrodes and electrolyte simultaneously after mechanical breakage, is fabricated by integrating all of the electroactive components into polymer networks cross-linked by dynamic borate ester bonding. Once suffering from repeated cutoffs, the battery quickly recovers its configuration integrity as well as mechanical and electrochemical properties autonomously without external stimuli. Furthermore, the battery can also be tailored into complicated patterns while maintaining its lithium-storage properties. The present investigation offers a strategy to design a smart and sustainable energy-storage device that has potential applications in wearable/flexible electronics, flexible robot or intelligent apparel, and so on.
研究领域:
材料科学
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能源存储
·
智能设备
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DOI
高影响因子
CATALYSIS TODAY
·
2018
·
IF 4.667
Bao-Shun Wang,Ren-Ying Li,Zhi-Yun Zhang,Xing-Wang,Xiao-Ling Wu,Guo-An Cheng,Rui-Ting Zheng
In this paper, we fabricate a novel ZnO nanowires overlapping junction (ZnO NWS-OLJ) electrode via a facile and cheap solution chemical routine. ZnO nanowires overlap and touch each other during their growth, and form ZnO NWS-OLJ. The photoelectrochemical (PEC) examination indicate that the photocurrent density of the as-prepared ZnO NWS-OLJ electrode reaches 57 μA cm −2 , which is 2 times higher than that of the ZnO nanorods (ZnO NRD) vertical array electrode at a 0 V bias potential versus Ag/AgCl. The PEC performance of ZnO NWS-OLJ electrode could be further improved by decorating Au nanoparticles on ZnO NWS-OLJ.
研究领域:
材料科学
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能源科学
·
纳米技术
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DOI
高影响因子
TRENDS IN BIOTECHNOLOGY
·
2026
·
IF 14.9
Nan Li,Kaiyue Wei,Yuyang Zhang,Hong Chen,Jiao Li,Jianan Sun,Sai Wang,Xiangzhao Mao
Biosensors, particularly aptasensors, play a pivotal role in rapid diagnostics, but their practical performance is limited by suboptimal aptamers and conventional aptamer-material combination-based approaches. To overcome the limitations, we drew inspiration from living systems by pioneering an immune-inspired biomimetic strategy that harnesses V(D)J recombination for aptamer engineering. The resulting topology-refactored aptamers demonstrate a 133.3-fold enhancement in binding affinity. Target-aptamer binding precisely regulates the self-assembly of DNA nanosphere-Cu(II) biomimetic nanozymes, establishing the core biosensing mechanism. Integrated with smartphone-based colorimetric analysis, this platform enables high-throughput screening of various trace food contaminants in real-world complex samples, achieving high accuracy and an ultra-low limit of detection [342.1 pM for enrofloxacin, 330.8 pM for ciprofloxacin, 116.3 pM for okadaic acid, and 104.0 pM for cadmium, respectively], demonstrating broad detection capability. By redefining aptamer design, this biomimetic strategy opens new avenues for developing robust, nature-inspired biosensors for real-world use.
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DOI
PubMed
高影响因子
JOURNAL OF PROSTHETIC DENTISTRY
·
2023
·
IF 4.6
Yaoxin Wang,Zijing Chang,Ning Ding,Zutai Zhang
Statement of problem Secondary caries is a major factor in the failure of dental restorations . However, studies on the fabrication of acid-resistant and antibacterial dentin to improve dentin bonding are sparse. Purpose The purpose of this in vitro study was to compare the effects of 2 types of fluoride-containing etchants on dentin bonding and explore the feasibility of formulating an altered dentin substrate to improve dentin bonding. Material and methods NaF-containing and SnF 2 -containing etchants were developed by adding sodium fluoride and stannous fluoride to a 35% phosphoric acid aqueous solution. Two groups (N1 and N2) containing NaF, 10 and 30 mg/mL respectively, and 2 groups (S1 and S2) containing SnF 2, 18.6 and 55.8 mg/mL respectively, were formulated. The etchant of the control group (C) was 35% phosphoric acid gel. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), Fourier transform infrared spectroscopy (FTIR), microhardness, antierosion, and antibacterial tests were performed on the treated dentin. Moreover, the microtensile bond strength (µTBS) of each group was tested, and the fracture mode was determined after testing. Statistical analysis was performed with the 2-way ANOVA test (α=.05). Results The exposed collagen fiber was observed in group C, and minerals were formed on the dentin in the experimental groups. SEM, FTIR, and the microhardness test indicated more remineralization in the SnF 2 -containing etchant groups. The µTBS of S1 (77.5 ±10.36 MPa) was the highest in all groups, and group C (38.5 ±9.01 MPa) was the lowest. Moreover, the antierosion and antibacterial properties of the S2 group were the best among all groups ( P <.05). Conclusions Compared with NaF-containing etchant, SnF 2 -containing etchant could improve the dentin substrate, increase remineralization, improve bonding strength, and enhance antibacterial ability, especially by increasing resistance to acid erosion.
研究领域:
牙科学
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材料科学
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生物医学工程
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DOI
PubMed
高影响因子
Matter and Radiation at Extremes
·
2021
·Vol. 6
·期 6
·
IF 2.845
Kong Lingping,Liu Gang
Synchrotron sources with high photon flux, small source size, and broad energy range have revolutionized ultrafine characterization of condensed matter. With the addition of the pressure dimension realized by the use of diamond anvil cells, enormous progress has been achieved throughout high-pressure science. This is particularly so for synchrotron-based infrared microspectroscopy (SIRMS) with its very high signal-to-noise ratio, high spatial resolution, and extended measurement conditions. SIRMS has high sensitivity, providing a platform for the investigations of the very small amounts of material that need to be used in high-pressure research. This review summarizes developments in SIRMS, focusing on instrumentation and high-pressure measurements. Applications to measurements of infrared reflectance and absorption are presented, illustrating how SIRMS results play a crucial role in advancing understanding of the crystalline phase transitions, electronic transitions, metallization, lattice dynamics, superconductivity, and novel functional behavior. New insights into spectroscopic properties, together with some cutting edge issues and open problems, are also briefly discussed.
研究领域:
凝聚态物理
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材料科学
·
光学
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DOI
高影响因子
CHEMPHYSCHEM
·
2023
·Vol. 24
·期 16
·e202300333
·
IF 2.9
Xinyi Zhao,Fei Xu
Graphical An amorphous molybdenum polysulfide material is synthesized and used as the cathode for rechargeable magnesium batteries. This electrode provides a high capacity (185 mAh g −1 ) and a good rate performance (50 mAh g −1 at 1000 mA g −1 ). A mechanism study demonstrates that both molybdenum and sulfur undergo redox reactions and contribute to the capacity. Rechargeable magnesium batteries (RMBs) attract research interest owing to the low cost and high reliability, but the design of cathode materials is the major difficulty of their development. The bivalent magnesium cation suffers from a strong interaction with the anion and is difficult to intercalate into traditional magnesium intercalation cathodes. Herein, an amorphous molybdenum polysulfide (a-MoS x ) is synthesized via a simple one-step solvothermal reaction and used as the cathode material for RMBs. The a-MoS x cathode provides a high capacity (185 mAh g −1 ) and a good rate performance (50 mAh g −1 at 1000 mA g −1 ), which are much superior compared with crystalline MoS 2 and demonstrate the privilege of amorphous RMB cathodes. A mechanism study demonstrates both of molybdenum and sulfur undergo redox reactions and contribute to the capacity. Further optimizations indicate low-temperature synthesis would favor the magnesium storage performance of a-MoS x .
研究领域:
材料科学
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电化学
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DOI
高影响因子
Nano Energy
·
2019
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IF 15.548
Shiqi Liu,Xu Zhang,Shiman He,Yushu Tang,Jie Wang,Boya Wang,Shu Zhao,Heng Su,Yang Ren,Liqiang Zhang,Jianyu Huang,Haijun Yu,Khalil Amine
Aluminum-ion batteries (AIBs) are considered as a promising alternative to traditional rechargeable batteries due to their high theoretical capacity, low cost, and multivalent-ion/multi-electron transfer, but are hindered from commercialization by the lack of suitable cathode materials . Herein, an aluminum-selenium (Al-Se) battery that operates at room temperature with high energy efficiency is reported. This Al-Se battery exhibits high selenium utilization with a discharge capacity of 607 mAh g −1 , a reduced overpotential, and high volumetric capacity for over 100 cycles. Furthermore, ex-situ spectroscopic and microscopic investigations of the Se cathodes indicated the existence of an aluminum selenide component as the discharge product. Additionally, in-situ transmission electron microscopy provided not only insights into understanding the Al-Se electrochemistry , but also a real-time characterization technique to evaluate the electrochemistry of AIBs in general.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
Polymer Chemistry
·
2015
·Vol. 6
·期 30
·5430-5436
·
IF 5.52
Dongfeng Fan,Xu Fei,Jing Tian,Longquan Xu,Xiuying Wang,Shuqi Fan,Yi Wang
Er organic complexes are generally used in polymer-based optical amplifiers by doping. This study presents a method for creating an Er-containing photosensitive polymer by free radical copolymerization. Two types of Er organic complexes containing polymeric reactivity groups were synthesized and investigated. Er(TTA)2(Phen)(MA), which has high photoluminescence, was polymerized with glycidyl methacrylate (GMA) for use as a novel UV-written polymer material. Poly(GMA-co-Er(TTA)2(Phen)(MA) was prepared with different proportions of Er, and its spectroscopic properties were investigated in detail. Polymer films with the optimum proportion (the molar ratio of GMA and Er(TTA)2(Phen)(MA) was 115 : 1) exhibited good UV-light lithographic sensitivity, narrow near-infrared luminescence, good thermal stability (Td: up to 303 °C), and solvent resistance after crosslinking. Micropatterns with smooth top surfaces were fabricated from the resulting polymer by direct UV exposure and chemical development.
研究领域:
材料科学
·
光学工程
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DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-12
·
IF 14.7
Wang Hangchao,Yang Yali,Gao Chuan,Chen Tao,Song Jin,Zuo Yuxuan,Fang Qiu,Yang Tonghuan,Xiao Wukun,Zhang Kun,Wang Xuefeng,Xia Dingguo
To improve the interface stability between Li-rich Mn-based oxide cathodes and electrolytes, it is necessary to develop new polymer electrolytes. Here, we report an entanglement association polymer electrolyte (PVFH-PVCA) based on a poly (vinylidene fluoride-co-hexafluoropropylene) (PVFH) matrix and a copolymer stabilizer (PVCA) prepared from acrylonitrile, maleic anhydride, and vinylene carbonate. The entangled structure of the PVFH-PVCA electrolyte imparts excellent mechanical properties and eliminates the stress arising from dendrite growth during cycling and forms a stable interface layer, enabling Li//Li symmetric cells to cycle steadily for more than 4500 h at 8 mA cm −2 . The PVCA acts as a stabilizer to promote the formation of an electrochemically robust cathode–electrolyte interphase. It delivers a high specific capacity and excellent cycling stability with 84.7% capacity retention after 400 cycles. Li 1.2 Mn 0.56 Ni 0.16 Co 0.08 O 2 /PVFH-PVCA/Li full cell achieved 125 cycles at 1 C (4.8 V cut-off) with a stable discharge capacity of ~2.5 mAh cm −2 .
研究领域:
材料科学
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电化学
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电池技术
·
聚合物化学
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DOI
高影响因子
Environmental Science-Nano
·
2022
·Vol. 9
·期 8
·2704-2712
·
IF 9.473
Cen Shi,Xiaomei Wang,Qiwen Sun,Lei Chen,Jingwen Guan,Linwei He,Yijing Zhang,Yujie Xu,Jianping Cao,Zhifang Chai,Shuao Wang,Juan Diwu
Internal exposure to uranium, a well-recognized nuclear material poses a health risk to the public, especially in contamination zones. However, the fast excretion and non-target distribution of most molecular decorporation ligands greatly reduce the decorporation efficacy, and frequent administrations are often required. To make matters worse, the clinical application of many molecular decorporation agents is restrained due to their high toxicity. Herein, we synthesized a carboxyl functionalized tetradentate hydroxypyridinone (HOPO) ligand and attached it onto chitosan oligosaccharide (COS) nanoparticles via amidation to yield a COS-2LI-HOPO composite. The biodistribution and pharmacokinetic studies verify the long-term accumulation of COS-2LI-HOPO in the kidneys, which is beneficial to the removal of uranium. Besides, the cytotoxicity of the material is much lower than the HOPO ligands. In addition, the uranium decorporation efficacy is up to 54.8% and 35.2% for the kidneys with prophylactic and delayed administration, respectively. Moreover, the composite is recognized to be able to reduce the cellular ROS amount to the same level as the blank control group due to the synergistic ROS scavenging effect of COS and HOPO moieties. Our current results reveal the fabrication of a nanocomposite by the modification of a chelating agent onto COS is effective in reducing toxicity, regulating ROS, and achieving kidney oriented decorporation of uranyl.
研究领域:
纳米技术
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毒理学
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药学
·
材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）