Applied Materials Today
·
2021
·
IF 10.041
Can Cui,Rupeng Zhang,Chuankai Fu,Baoyu Sun,Yang Wang,Hua Huo,Yulin Ma,Yunzhi Gao,Geping Yin,Pengjian Zuo
As one of the most promising next generation energy storage systems, lithium sulfur (Li-S) batteries with high specific energy density have received extensive attention due to the advantages of resource abundance, low toxicity and super high specific energy density (>2500 Wh kg −1 ). However, the unfavorable shuttle effect caused by dissolved polysulfides during charging/discharging processes results in low Coulombic efficiency (CE), poor interfacial stability, uncontrolled lithium dendrite growth and rapid capacity degradation, hindering the practical application of Li-S batteries. Herein, a highly stable armor-like artificial solid electrolyte interphase (SEI) layer for Li metal anode was formed based on the spontaneous interaction between Li metal and 4-chlorophenylboronic acid (CPB). First, this artificial SEI layer can avoid the direct contact between Li anode and electrolyte, therefore eliminating the corrosion reaction between Li metal anode and polysulfides in electrolyte. Second, the artificial SEI layer with high durability can effectively suppress lithium dendrite growth and stabilize Li anode/electrolyte interface. As consequence, the Li/Li symmetric cells show the lengthened cycling life over 500 h with steady and low polarization voltage under the condition of 1.0 mA cm −2 for 1.0 mAh cm −2 . Furthermore, the Li-S cells with modified Li metal anode deliver superior cycling performance and higher CE at various sulfur loadings and rate conditions than those of the cells with pristine Li. This work highlights the key role of artificial SEI layer on stabilizing the Li anode, providing a new pathway for Li metal protection in Li-S batteries development.
研究领域:
储能
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材料科学
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电化学
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电池技术
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高影响因子
RSC Advances
·
2019
·Vol. 9
·期 62
·35948-35956
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IF 3.049
Yue Pan,Weijia Zeng,Rong Hu,Bo Li,Guiling Wang,Qintang Li
Cu foil is widely used in commercial lithium ion batteries as the current collector of anode materials with excellent conductivity and stability. In this research, commercial Cu foil was chosen as the current collector and substrate for the synthesis of Cu doped flake-NiO via a traditional hydrothermal method. The effect of the ratio of Cu and the calcination temperature on the electrochemical performance of NiO was investigated. The structure and phase composition of the Cu doped flake-NiO electrode were studied through X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDAX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and inductive coupled plasma emission spectrometry (ICP). The electrochemical properties of the Cu doped flake-NiO electrode were studied through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and a galvanostatic charge–discharge cycling technique. According to the results, the Cu-doped NiO electrode, calcined at 400 °C with a molar ratio of Cu : Ni = 1 : 8, exhibited a high reversible charge capacity. The good cycling stability and rate performance indicate that the as-prepared electrode can be applied as a potential anode for lithium ion batteries.
研究领域:
材料科学
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电化学
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储能技术
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纳米材料
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电池技术
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高影响因子
COMBUSTION AND FLAME
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2021
·
IF 4.185
Qianjin Lin,Chun Zou,Shibo Liu,Yunpeng Wang,Lixin Lu,Chao Peng
The ignition delay times (IDTs) of 2-pentanone (methyl propyl ketone , MPK) were measured at equivalence ratios of 0.5, 1.0, and 1.5, pressures of 1 bar and 5 bar, and temperatures ranging between 1227 and 1571 K. A MPK low to high-temperature model was constructed on the basis of Pieper model and Fenard model. The improvement of the model is that the rate constants of sixteen MPK decomposition and hydrogen abstraction reactions (R1–R16) obtained by the analogy-based method, were globally optimized by the Bayesian Optimization algorithm using the high-temperature IDTs. The optimized model well predicts the laminar flame speeds (measured by Li et al.) and the IDTs and species profiles in low-temperature (measured by Fenard et al.). There is no overfitting during the optimization process. Therefore, the optimization method and the optimized MPK model are reliable. The comparisons of the optimized model with Pieper model and Fenard model were performed by the reaction pathway analysis and sensitivity analysis for the predictions of the MPK profile, the low and high-temperature IDTs and the laminar flame speeds. Because of the difference in the molecular structure between MPK and 2-butanone, remaining the branching ratio among three MPK decompositions (R1–R3) and the ratio among the rate constants of the MPK hydrogen abstraction reactions by OH, H and CH 3 unchanged is unnecessary in the development of the MPK model using the analogy-based method, while the branching ratio of the hydrogen abstraction reactions at carbon 1, 3, and 5 remains unchanged. The competition among the decomposition and hydrogen abstraction reactions of MPK is intricate and crucial to the low and high-temperature oxidation . It is necessary to globally optimize the rate constants of R1-R16 based on the multidimensional experimental results, such as low and high-temperature IDTs, laminar flame speeds, and species profiles.
研究领域:
燃烧化学
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化学动力学
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能源工程
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反应机理建模
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优化算法
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Frontiers of Materials Science
·
2025
·Vol. 19
·期 2
·1-12
·
IF 2.3
Zou Fangqing,Xiao Ye,Qiao Xianshu,Tian Chuanjin,Wang Chang-An
Constructing specific noble metal/metal—organic framework (MOF) nanoheterostructures is an effective strategy for promoting water electrolysis, yet remains highly challenging due to complex synthesis methods, difficulties in structural characterization, and the demanding nature of performance optimization. In this work, a heterojunction electrocatalyst was developed through growing Ru nanoparticles on NiFe-MOF nanosheets (NSs) supported by nickel foam (NF) using an easily accessible solvothermal method followed by an annealing strategy. Owing to the electronic interaction between Ru nanoparticles and NiFe-MOF NSs, the optimized Ru@NiFe-MOF/NF catalyst exhibits excellent bifunctional performance for the hydrogen evolution reaction (with an overpotential of 84 mV at 10 mA·cm −2 ) and the oxygen evolution reaction (with an overpotential of 240 mV at 10 mA·cm −2 ) in a 1.0 mol·L −1 KOH solution, which is superior to that of commercial catalysts. This study highlights a promising strategy for designing and developing efficient electrocatalysts for overall water electrolysis.
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PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
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2026
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IF 3.2
Yang Yamin,Zhang Yalei,Chang Liyun,Liu Haohao,Chen Bokai,Tao Ling,Qian Zhiyu
Photodynamic therapy (PDT) is a clinically approved cancer treatment that combines photosensitizer, oxygen, and light to generate cytotoxic reactive oxygen species (ROS). Its efficacy is often compromised by restricted drug and light penetration, and hypoxic microenvironments in solid tumors, making it essential to establish in vitro models that can recapitulate these features for PDT studies and treatment optimization. In this work, we present a microfluidic platform incorporating an agarose gel–embedded tumor cell culture that enables precise geometric and environmental control, including defined microchamber architecture, dynamic perfusion-based photosensitizer delivery, oxygen regulation, and tunable light exposure for systematic PDT efficacy evaluation. Computational fluid dynamics (CFD) and discrete element method (DEM) simulations guided the optimization of loading agarose–cell suspensions into confined microchambers. The hexagonal microchamber layout and hydrogel matrix supported cell positioning within controlled diffusion domains. A modular dye-based optical filter system generated spatially tunable light fluence, while integrated gas control regulated normoxic and hypoxic conditions. PDT studies revealed that dynamic perfusion and microenvironmental constraints produced a spatial gradient of treatment response along the flow direction of photosensitizer. ROS generation was markedly higher under normoxia than hypoxia, and live/dead and CCK-8 assays confirmed a light dose–dependent decline in viability under normoxia, whereas hypoxic cultures maintained > 85% viability. Collectively, by capturing key tumor microenvironmental features such as diffusion limitations and oxygen deprivation, this platform offers a useful tool for photosensitizer assessment, PDT protocol optimization, and mechanistic investigation of oxygen-dependent PDT responses.
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产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2026
·
IF 16
Yushuai Yang,Yan Zhao,Shuang Zhao,Ruxin Yao,Hui Li,Junhao Ma,Can Shi,Shengchi Bai,Xiaoqi Wang,Jie Li,Xiao Feng,Bo Wang
Polyamide membranes are essential for lithium extraction from salt-lake brines, yet optimizing their ion-sieving efficiency remains difficult. Herein, we report an ultrathin polyamide membrane (∼10 nm thick) with a low surface roughness (Ra = 1.18 nm) and an engineered asymmetric charge distribution. The membrane combines a positively charged upper layer, a negatively charged lower layer, and an interfacial region with narrower pores formed via interlayer interpenetration. This architecture promotes differential dehydration of Mg2+ and Li+ at the upper layer and amplifies selectivity through the interfacial region. Passage through the positive layer increases ion charge exposure, enhancing diffusion selectivity within the negatively charged interior and raising the transmembrane energy barrier for Mg2+ relative to Li+. The membrane achieves a Li+/Mg2+ selectivity of 69 and a water permeation flux of 12 L m–2 h–1 bar–1, surpassing commercial benchmarks. Its ultrasmooth surface and high hydrophilicity minimize fouling, maintaining a flux recovery above 90% under high contaminant loads. Scaled-up modules using a three-stage nanofiltration process reduced the Mg2+/Li+ ratio in a concentrated brine simulant (25 g L–1) from 50 to 0.2, highlighting strong potential for industrial lithium recovery.
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DOI
PubMed
高影响因子
BIOMASS & BIOENERGY
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2026
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IF 5.8
Hai-Juan Zhao,Su Sun,Zhen-Yu Wang,Li Chen,Muhammad Wajid Ullah,Yan-Bo Zhang,Jian-Gang Zhou
The growing contamination of dye-enriched wastewater is a major environmental issue, driving extensive research into the development of adsorbents with high removal efficiency and exceptional adsorption capacity for dyes. Biomass adsorbents, valued for their renewability and low cost, have gained significant attention for treating cationic dye-contaminated wastewater. However, their susceptibility to bacterial contamination remains a challenge, as it can significantly reduce their adsorption effectiveness. To overcome these challenges, we have developed a novel adsorbent, named JBF, composed of Juncus effusus (JE), bacterial cellulose (BC), and fungal mycelium (FM). JBF was synthesized through a sequential fermentation process involving JE, Taonella mepensis , and Trametes versicolor . This adsorbent demonstrated impressive adsorption capacities for methylene blue (MB), crystal violet (CV), and brilliant green (BG), with values of 307.8, 256.2, and 239.4 mg/g, respectively. The presence of hydrogen bonds between the highly polar -OH groups of the polyphenols in the adsorbent is a key factor in providing abundant adsorption sites. Adsorption data analysis revealed pseudo-first-order kinetics and alignment with the Langmuir isotherm model. Additionally, the antibacterial activity of JBF, derived from polyphenols produced by the metabolism of JE by T . versicolor , enhanced its environmental safety and reusability. This work introduces a sustainable, efficient, and antibacterial biosorbent, offering a practical solution for the removal of cationic dyes from wastewater.
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DOI
高影响因子
Acta Crystallographica Section C-Structural Chemistry
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2026
·Vol. 82
·期 1
·32-45
·
IF 0.9
Su W.,Tan X.-J.
A novel asymmetrical bis-Schiff base, 3-({(E)-[bis(pyridin-2-yl)methylidene]hydrazinylidene}methyl)-1H-indole, C20H15N5 (3-D), incorporating both pyridine and indole units, was synthesized and structurally characterized alongside its cadmium(II) complex bis[3-({(E)-[bis(pyridin-2-yl)methylidene]hydrazinylidene}methyl)-1H-indole]dichloridocadmium(II) trihydrate, [CdCl2(C20H15N5)2]·3H2O (3-D-Cd). Single-crystal X-ray diffraction revealed that both compounds adopt discrete molecular architectures, with the complex exhibiting pronounced π–π stacking interactions, as confirmed by density functional theory (DFT) calculations. Comprehensive spectroscopic characterization (elemental analysis, HRMS, NMR, UV–Vis and fluorescence) was performed. Cytotoxicity assays against A375, A549 and HeLa cancer cell lines, as well as normal HFF-1 cells, demonstrated that, while 3-D is minimally toxic, 3-D-Cd selectively inhibits tumour cell proliferation with significantly reduced toxicity toward normal cells compared to CdCl2. These findings suggest the potential of 3-D as a detoxifying ligand and of 3-D-Cd as a candidate for use as a low-toxicity metal-based anticancer agent.
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DOI
PubMed
高影响因子
Energies
·
2021
·Vol. 14
·期 21
·6946
·
IF 3.004
Bin Zhao,Qi Wang,Boheng Yuan,Yafei Lu,Xiaogang Han
Solid-state plastic crystal electrolytes (SPCEs) have attracted much attention due to their high ionic conductivity at room temperature and polymer-like plasticity. Herein, we made a LiFePO4||Li solid state battery based on SPCEs. A SPCE film is made up of glass fiber, succinonitrile (SN), lithium bis (triflu-romethanesulphonyl) imid (LiTFSI), and LiNO3. Glass fiber is introduced to improve the mechanical property, and LiNO3served as an additive to stabilize electrolyte/Li interface. The SPCE film delivers a high ionic conductivity of 7.3 × 10−4S cm−1at room temperature and has excellent stability with Li-metal anode. SPCE is also infused into cathode electrode and used as the interface with cathode particles, which can access a large interface contact area and deform reversibly with volume change. The LiFePO4||Li solid state battery based on SPCE can work well at ambient temperature, which shows a high initial specific capacity of 121.4 mAh g−1and has 86.9% retention after 90 cycles at 0.5 C.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2026
·
IF 4.4
Supeng Gao,Binbin Wang,Yujie Cheng,Mengyan Feng,Yue Han,Tao Li,Shuguang Cao,Yao Li,Lingwei Xue
An n-type dimeric organic molecule, B2, is employed as an interfacial modifier to regulate the contact property between the perovskite layer and PCBM ETL in inverted PSCs. • B2 interlayer passivates defects in the perovskite layer and optimizes the energy level alignment at the interface. • A prominent PCE of 20.20% is delivered by PSCs with B2 as the interlayer, alongside minimal hysteresis. • The unencapsulated devices retain more than 80% of initial PCE after 1000 h in ambient humid air. Interface engineering at the perovskite/electron transport layer (ETL) junction has been demonstrated as an effective strategy for achieving high-quality interfacial contact in perovskite solar cells (PSCs). In this work, an n-type dimeric organic molecule, B2, is employed as an interfacial modifier to regulate the contact property between the perovskite layer and PCBM ETL. Experimental results reveal that the B2 interlayer passivates defects in the perovskite layer through coordination with undercoordinated Pb 2+ ions, thereby suppressing trap-assisted non-radiative recombination. Furthermore, the B2 modification optimizes the Energy level alignment at the interface, promoting efficient charge carrier transport. As a result of these synergistic effects, the interface-engineered PSCs achieve a power conversion efficiency of 20.20% and maintain over 80% of their initial efficiency after 1056 h of aging tests. This study provides an effective interfacial regulation approach for developing highly efficient and stable PSCs. Download: Download high-res image (136KB) Download: Download full-size image
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高影响因子
CRYOBIOLOGY
·
2026
·
IF 2.6
Jian Zhang,Ting Cui,Shaojie Ma,Yanna Lin,Guangrui Liu,Xiaqian Xu,Keke Xie,Siyu Xu,Guisen Zhang,Chao Hao
In-silico and experimental dual-screening strategy for lyoprotection of Rease. • A trehalose-povidone-arginine ternary lyoprotectant “combo” for long-term ambient storage of REase. • Lyocakes formed a co-amorphous glassy matrix with residual moisture content <2%. • 100% relative enzymatic activity maintained after 3 months storage at 25 °C and 60% RH. An in-silico and experimental dual-screening lyophilization strategy was developed for long-term ambient storage of two model restriction endonucleases (REase) of Xba I (oxidation-resistant) and Xho I (oxidation-sensitive). After molecular docking and experimental screening of lyoprotectants and their combinations, a trehalose-povidone-arginine ternary lyoprotectant “combo” was finally developed. The lyophilized formulations were primarily evaluated by four critical quality attributes (CQAs), including lyocake appearance, reconstitution rate, relative enzymatic activity (REA) and short-term storage stability. Four ternary lyophilized formulation candidates were further evaluated by thermogravimetric analysis (TGA) for the residual moisture contents (<2%). Based on the results of four CQAs and TGA, the optimized formulation was finally determined, including trehalose (15%), arginine (5%) and povidone (5%). Differential scanning calorimetry (DSC) and powder X-ray diffraction (PXRD) results indicated that REase lyocakes formed a co-amorphous glassy matrix. Scanning electron microscopy (SEM) images showed REase lyocakes with intact, loose and porous structure. Following six months of long-term stability testing under controlled conditions (25 °C, 60% RH), the lyophilized REase products still maintained comparable DNA cleavage efficiency to that of freshly prepared samples. This study presents a unique in-silico and experimental dual-screening strategy for developing cold-chain-free solid-state enzyme reagents. Download: Download high-res image (409KB) Download: Download full-size image
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PubMed
高影响因子
Inorganic Chemistry Frontiers
·
2026
·
IF 6.2
Guangtao Zhang,Yarui Li,Jiarui Chen,Yunyi Cui,Xiaoyuan Zhou,Qing Zou,Xiaofeng Guo,Yongxin Li,Peng Lin,Jian Lin
The selective separation of actinides from lanthanides represents a longstanding challenge in advanced nuclear fuel cycle management. Here we present a fully inorganic crystallization strategy for Ln(III)/An(VI) separation based on the Preyssler-type polyoxometalate [NaP5W30O110]14− (P5W30). Leveraging the strong affinity of Ln(III) ions for oxygen-donor environments, two crystalline phases, Ln-P5W30-1 and Ln-P5W30-2, are isolated, featuring peripheral coordination and cavity encapsulation modes, respectively. The coordination behaviour is governed by ionic radius and HNO3 concentration, providing a controllable crystallization pathway under acidic conditions relevant to nuclear reprocessing streams. In contrast, U(VI), employed as a surrogate for Am(VI), does not crystallize with P5W30 under identical conditions, highlighting intrinsic differences in Lewis acidity and actinyl geometry. Binary separation experiments demonstrate highly selective incorporation of Ln(III) into the POM lattice while U(VI) remains in solution. Increasing the acidity to 3 M HNO3 promotes exclusive formation of Ln-P5W30-1 and substantially enhances separation efficiency, affording separation factors up to 41 139 for Eu/U. This acid-tolerant, solid–liquid separation platform offers a chemically robust and potentially scalable route for lanthanide–actinide partitioning in nuclear fuel reprocessing.
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高影响因子
危险品化学品经营许可证（带存储）