ADVANCED MATERIALS
·
2026
·
IF 29.1
Juan Wang,Zhaopei Liu,Hongyu Zhao,Lin Wang,Hao Luo,Fanjie Xia,Weihao Zeng,Zhuo Chen,Yuxin Liu,Mengting Jiang,Panxing Han,Dongqi Li,Zhongpeng Li,Shihui Li,Zongkui Kou,Shichun Mu
Direct regeneration enables high-value recovery of spent layered oxide cathodes, but their high-voltage reuse requires stabilization of both regenerated surface and lattice oxygen beyond bulk compositional restoration. Here, we report a high-voltage upcycling strategy for spent LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM) based on near-surface fluorine (F) regulation of residual rock-salt layers. Molten-salt relithiation recovers Li content and layered bulk framework, whereas subsequent fluorine treatment converts the remaining inert surface reconstruction into a thin F-enriched rock-salt interphase. Rather than impeding Li + transport, this interphase stabilizes the reconstructed surface, reduces oxygen defects, and mitigates electrolyte-induced interfacial degradation. The resulting cathode with F-enriched rock-salt surface (RFNCM) delivers 208.7 mAh g −1 at 0.1 C within 3.0-4.6 V, and retains 80.28% capacity after 400 cycles at 1 C and 25°C, and 80.93% after 200 cycles at 50°C. In situ X-ray diffraction and gas-evolution measurements reveal more homogeneous high-voltage structural evolution and suppressed oxygen release, respectively. According to analysis results of XPS, in situ Raman and Density functional theory calculations, these improvements can be attributed to strengthened Ni─O interactions and increased oxygen-vacancy formation energies after fluorine incorporation. This work converts an unavoidable reconstruction product into a protective interphase for high-voltage reuse of spent layered oxide cathodes.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Bei Hu,Fushan Geng,Ming Shen,Chong Zhao,Qing Qiu,Yang Lin,Changxin Chen,Wen Wen,Shun Zheng,Xiaoshi Hu,Chao Li,Bingwen Hu
LiCoO 2 , as a domain cathode material of Li-ion batteries, faces a great deal of challenges due to the limited cycling stability at high voltage (>4.35 V vs. Li/Li + ). These issues are tentatively addressed here by a multifunctional self-stabilization modification strategy, involving trace Mg bulk doping, surface gradient Ti doping and BaTiO 3 dot coating in LiCoO 2 . The multifunctional synergy is verified to overcome the detrimental irreversible phase transition and the growth of impedance of LiCoO 2 cycling at 4.6 V. By using soft X-ray absorption spectroscopy (sXAS) and electron paramagnetic resonance (EPR) techniques, we also elucidate that Ti surface gradient doping can reinforce the structure rigidity of the particles while significantly attenuates the irreversible oxygen redox at high voltage. All these strategies promote the prolonged cyclic performance of LiCoO 2 under 4.6 V high-voltage through different mechanism. This elaborate investigation provides an instructive contribution in the advancement of high-voltage LiCoO 2 .
研究领域:
材料科学
·
电化学
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2022
·
IF 4.601
Zichun Liu,Wei Zhou,Yuan Hong,Wei Hu,Zhentao Li,Zilin Chen
ABSTRACT Polypropylene hollow fiber is a kind of ideal material for stir bar sorptive extraction (SBSE) which possesses the advantages of porous structure, large specific surface area, high mechanical strength, and good solvent resistance. In this work, a novel SBSE device using the polypropylene hollow fiber-based stir bar with the detachable dumbbell-shaped structure was designed and prepared. Covalent organic framework-V (COF-V), which possesses porous structure, sphere shape with large specific surface area, was synthesized at room temperature and grown on polypropylene hollow fiber by polydopamine modification method. Compared with previous studies which used etched poly(ether ether ketone) as supporting material, polypropylene hollow fiber omitted the complicated, difficult and dangerous pretreatment process with high concentrated sulfuric acid. The immobilization of COF-V on the polypropylene hollow fiber significantly endows them with multiple interaction abilities including hydrophobic interaction and π-π interaction. The stir bar showed good performance and stability for the extraction of four benzophenones including BP-1, BP-6, BP-3 and Ph-BP. By coupling with HPLC-UV, the COF-V@polypropylene hollow fiber based SBSE method showed wide linear range (0.1–200 ng/mL), excellent linearity (R 2 ≥ 0.9979), high sensitivity (LODs in the range of 0.02–0.03 ng/mL), and good repeatability (RSD ≤ 5.21%). This method was successfully applied to the analysis of benzophenones in soil and sunscreen samples.
研究领域:
分析化学
·
环境科学
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DOI
PubMed
高影响因子
Materials Today Bio
·
2026
·
IF 11
Yi Cai,Cai-Yun Wang,Min Dong,Zhang Lin,Cai-Qiang Liao,Ze-Jun Li,Tian-Yi Qin,Zhao-Hui Wang,Ya-Long Wang,Ming-Qiang Zhu
The cyclic GMP-AMP synthase–stimulator of interferon genes (cGAS-STING) pathway is a central driver of antitumor immunity, yet its safe and efficient activation in solid tumors remains challenging. Here we report a V-shaped photosensitizer, 2C6, that functions as an in situ DNA-fragmentation agent by directly targeting double-stranded DNA (dsDNA). Owing to its A–π–D–π–A molecular framework, 2C6 exhibits efficient reactive oxygen species (ROS) generation under low-power white-light irradiation. Photoactivation of 2C6 induces concurrent mitochondrial and nuclear DNA damage, leading to the accumulation of oxidized dsDNA fragments in the cytosol, which is closely associated with activation of the cGAS–STING signaling pathway. In parallel, 2C6-PDT induces pyroptosis and immunogenic cell death (ICD), as evidenced by elevated levels of pyroptosis-associated markers (including NLRP3, cleaved caspase-1, and GSDMD), along with features of ICD such as CRT exposure, ATP secretion, and HMGB1 release. In a murine 4T1 triple-negative breast cancer (TNBC) postsurgical residual model, a single intraoperative 2C6-PDT prevented local tumor recurrence, established immune memory within the observation period, and suppressed distant tumor growth and lung metastasis without immunoadjuvants. Collectively, 2C6 couples photoinduced DNA damage to cytosolic dsDNA sensing, type I interferon signaling, and adaptive immune activation through a defined cascade encompassing DNA damage, dsDNA accumulation, cGAS-STING engagement, inflammatory signaling, and immune-cell infiltration. Together, these findings demonstrate that rationally engineered DNA-targeted photosensitizers can convert localized photodynamic tumor ablation into a systemic photoimmunotherapeutic response, providing a strategy to transform immunologically “cold” tumors into immune-responsive states.
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DOI
PubMed
高影响因子
Autophagy
·
2026
·
IF 14.3
Hongtao Tie,Mengqian Hou,Jun Zhang,Martijn F. Hoes,Dietbert Neumann,Joost J. F. P. Luiken,Shujin Wang
The vacuolar-type H+-translocating ATPase (V-ATPase) plays a pivotal role in cellular homeostasis by acidifying endosomes and lysosomes, regulating key processes such as autophagy and membrane trafficking. While the importance of V-ATPase in these functions is well-established, the methodologies for studying its assembly and function remain varied and under-characterized. In this study, we systematically validated and compared methodologies for assessing V-ATPase assembly and endo/lysosomal acidification under physiological and high-fat conditions, both in vitro and in vivo. Various techniques, including fractionation, immunoprecipitation, immunofluorescence microscopy, and proximity ligation assays, were evaluated using cardiomyocyte cell lines, rat models of lipid overload, and two heart-specific V-ATPase-knockout mouse models (V-ATPase subunits ATP6V1G1 and ATP6V0D2). High palmitate (HP) and bafilomycin A1 (BafA) were used to manipulate v-ATPase function, while a colorimetric assay assessed proton-pumping activity. Results consistently showed that HP and BafA induced V-ATPase disassembly and inhibited proton-pumping activity, leading to impaired endo/lysosomal acidification and autophagy inhibition upon fusion of autophagosomes with lysosomes. Similar findings were observed in vivo, where a high-fat diet (HFD) reproduced the effects of HP on cardiac tissue. The methodologies were further validated in two heart-specific V-ATPase-knockout mouse models, demonstrating consistent outcomes across different experimental approaches. This study establishes a robust framework for evaluating V-ATPase assembly and function. The validated methodologies reveal that lipid overload inhibits autophagy and contributes to insulin resistance by inducing V-ATPase disassembly and subsequent lysosomal dysfunction. These findings offer insights into the molecular mechanisms underlying metabolic diseases and provide valuable tools for further research.
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2018
·Vol. 28
·期 30
·1801237
·
IF 13.325
Yajuan Wang,Yongqi Liang,Yongfei Zhang,Wei Yang,Licheng Sun,Dongsheng Xu
After an overwhelmingly fast increase during the period from 2009 to 2016, the power conversion efficiency of hybrid perovskite solar cells levels at ≈22% during the past two years. Every small advance to theoretical limits of the photovoltaic metrics will significantly deepen the understanding of internal processes inside the perovskite solar cells. Here, by introducing chloroform as the antisolvent, the one-step deposition method to fabricate methylammonium lead tri-iodide (MAPbI 3 ) perovskite films under ambient air condition is optimized. With MAPbI 3 solar cells of a planar architecture, a record high V oc of 1.18 V is obtained under simulated AM1.5 sunlight. The achievement helps pure MAPbI 3 to reestablish its potential as a model compound for research in hybrid perovskite solar cells. After systematic comparison on different electron transport layers (SnO 2 and TiO 2 ) and fluorine doped tin oxide (FTO) substrates of different roughness for photon trapping inside MAPbI 3 solar cells, the remaining 0.14 V V oc loss is elucidated to be due to the poor luminescent property of the MAPbI 3 films.
研究领域:
光伏技术
·
材料科学
·
太阳能
·
半导体器件
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DOI
高影响因子
RARE METALS
·
2024
·Vol. 43
·期 6
·2623-2635
·
IF 9.6
Hong Fei-Fan,Shi Wei-Tao,Zhao Ruo-Lin,Fan Yi,Liu Zi-Qi,Ding Si-Zhi,Liu Hai-Zhen,Zhou Wen-Zheng,Guo Jin,Lan Zhi-Qiang
Herein, the successful preparation of a single-atom catalyst V–N–C using vanadium-doped zeolitic imidazolate framework (ZIF)-8 as a precursor is reported. The experimental results showed that the V–N–C had a good promoting effect on the hydrogen storage performance of MgH 2 , and the optimal addition amount of V–N–C was 10 wt%. The hydrogenation and dehydrogenation apparent activation energies of 10 wt% V–N–C-catalyzed MgH 2 were reduced by 44.9 and 53.5 kJ·mol −1 , respectively, compared to those of additive-free MgH 2 . The 10 wt% V–N–C-catalyzed MgH 2 could reabsorb 5.92 wt% of hydrogen in 50 min at 150 °C, with a capacity retention rate of 99.1% after 30 cycles of hydrogen absorption and desorption. Mechanism analysis showed that V–N–C was partially transformed into VN and metallic V when it was milled with MgH 2 ; the in-situ-formed VN and metallic V played an important role in improving the hydrogen storage performance of MgH 2 . This approach provides a potential solution for obtaining high-performance Mg-based hydrogen storage materials through synergistic interactions between V, N and C. Graphical abstract
研究领域:
材料科学
·
氢能
·
纳米催化
·
金属有机框架（MOFs）
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DOI
高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 34
·期 45
·2205028
·
IF 32.086
Yuqi Cui,Jiangjian Shi,Fanqi Meng,Bingcheng Yu,Shan Tan,Shan He,Chengyu Tan,Yiming Li,Huijue Wu,Yanhong Luo,Dongmei Li,Qingbo Meng
All-inorganic CsPbI 3 perovskite has emerged as an important photovoltaic material due to its high thermal stability and suitable bandgap for tandem devices. Currently, the cell performance of CsPbI 3 solar cells is mainly subject to a large open-circuit voltage ( V OC ) deficit. Herein, a multifunctional room-temperature molten salt, dimethylamine acetate (DMAAc) is demonstrated, which not only directly acts as a solvent for precursor solutions, but also regulates the phase conversion process of the CsPbI 3 film for high-efficiency photovoltaics. DMAAc can stabilize the DMAPbI 3 structure and eliminate the Cs 4 PbI 6 intermediate phase, which is easily spatially segregated. Meanwhile, a new homogeneous intermediate phase DMAPb(I,Ac) 3 is formed, which finally affords high-quality CsPbI 3 films. With this approach, the charge capture activity of defects in the CsPbI 3 film is significantly suppressed. Consequently, a V OC of 1.25 V and >21% power conversion efficiency are achieved, which is the record highest reported thus far. This intermediate phase-regulation strategy is believed to be applicable to other perovskite material systems.
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Varney Edwin Johnson,Qi Liao,Bob Wisdom Jallawide,Richmond Anaman,Charles Amanze,Peicheng Huang,Wei Cao,Chunlian Ding,Yan Shi
Efficient removal of arsenic (As) and lead (Pb) from industrial wastewater has long been a critical environmental issue due to their serious risk to human health. Therefore, in this work, a modified banana peel biochar (MBPB) was prepared by mixing calcium nitrate , diammonium hydrogen phosphate , sulfuric acid, ferric nitrate with dehydrated banana peel biochar as adsorbent for As(V) and Pb(II) removal in wastewater, and their absorption mechanism was investigated. SEM-EDS, TEM, FTIR , XRD , XPS , BET, kinetic, and isothermal characteristics of MBPB and pristine banana peel biochar (PBPB) were conducted. The behavior of both metal ions on MBPB and PBPB was well explained by the pseudo-second-order kinetic with Langmuir and Freundlich models. We found that the two biochar’s behaviors were mixture processes of monolayer and multilayer adsorption , achieving maximum capacities as determined by the Langmuir model of 39.5 mg g −1 (MBPB-As), 33.2 mg g −1 (MBPB-Pb), 30.8 mg g −1 (PBPB-Pb), and 23.5 mg g −1 (PBPB-As), with maximum efficiencies of 98.7% (MBPB-As) and 90.3% (MBPB-Pb) under optimum conditions. Thermodynamic tests showed that As(V) and Pb(II) removal on MBPB was a spontaneous and endothermic physisorption process. MBPB showed great reusability in As(V) and Pb(II) removal, with removal rates as high as 71.4% and 66.5% after five cycles, respectively. Selective adsorption of As(V) and Pb(II) was also investigated on MBPB, and the removal rate was still high in the mixture of heavy metals. These findings provide a feasible method for the environmental-benign utilization of banana peel as a low-priced adsorbent in wastewater treatment .
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Chen Wang,Zewei Hu,Wei Lou,Mingjie Huang,Wei Xiang,Tao Zhou,Juan Mao,Xiaohui Wu
This study has demonstrated that the Fenton fluidized bed (FFB) technology could successfully immobilize As ions on the iron-crystallized (IC) carriers, with simultaneous crystallization of ferric and mineralization of organic pollutants. It was found that rapid fluidized immobilization of aqueous As(V) on the IC carriers was through surface favorable bidentate complexion, while the adsorptive removal of As(III) was rather slow. Adding Fe 3+ caused competitive complexion and inhibited the As(V) immobilization. However, effective oxidative crystallization of Fe(II) and As(III) in FFB would take place. With the simultaneous generation of As(V) and Fe(III) by rapid •OH oxidation, two different crystalline precursors would be formed on the IC carriers, leading to efficient co-crystallization of As(V)/Fe(III). Recursive Fe(III) crystallization in the FFB continuously provided essential surface hydroxyl groups for capturing As(V), inducing layer-by-layer co-crystallized immobilization As(V)/Fe(III). The long-term continuous-flow treatment of a practical As(III)-containing industrial organic wastewater exhibited effective/stable co-crystallizations of As(V)/Fe(III), as well as COD removal. The FFB technology is expected to be a good option in treating complex industrial wastewater containing heavy metal and recalcitrant organic pollutants.
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高影响因子
Catalysts
·
2022
·Vol. 12
·期 4
·382
·
IF 4.501
Fanji Liu,Mingxun Han,Xiangxiang Li,Xiqing Zhang,Yanting Wang,Yanhong Xu,Lihong Zhang
Nonoxidative dehydrogenation of isobutane is one of the sustainable strategies for producing high value added isobutene. As alternatives for the commercial Pt- and Cr-based dehydrogenation catalysts, supported V-based catalysts are worthy of study. In this work, a series of VOx/mMgAlO-R catalysts (m = 10, 15, 20, 25 and 30) were designed and prepared by loading VOxon mMgAlO composite oxide supports derived from mesoporous Al2O3-supported layered double hydroxide (LDH) nanocomposites. The calcined and reduced catalysts were characterized by X-ray diffraction (XRD), Raman spectra, Ultraviolet-visible diffuse reflectance (UV-Vis) spectra, NH3temperature-programmed desorption (NH3-TPD), Temperature-programmed reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TG) and low temperature N2adsorption–desorption isotherms. The as-synthesized VOx/20MgAlO-R with appropriate Mg addition exhibits superior activity (43–56% conversion and 77–81% selectivity), excellent stability and coking-resistance for the isobutane dehydrogenation. The structure–performance relationship reveals that the formation of VOxspecies confined in the reconstructed LDH interlayer and porous MgO facilitates dispersing and stabilizing the VOxspecies. The low polymerization degree and higher proportion of V4+ion for VOxspecies, strong acidity of medium acid sites and low concentration of strong acid sites are responsible for the excellent anti-coking and catalytic performance. The strong VOx–support interaction is beneficial for enhancing the stability of the catalysts.Keywords:isobutane dehydrogenation;layered double hydroxide;vanadium-based catalysts;magnesium modification;polymerization degree
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高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Yuxing Gao,Chunli Wang,Dongming Yin,Zhaomin Wang,Fan Wu,Yong Cheng,Limin Wang
While vanadium oxides have garnered interest due to their high capacity and abundant valence states in aqueous zinc-ion batteries (AZIBs), there are many challenges to achieving long cycling stability and excellent rate capability resulting from poor electronic conductivity and sluggish reaction dynamics. Herein, we design a cathode material VNxOy/C derived from a self-assembled V-polydopamine complex via a one-step organic–inorganic hybrid reaction. Benefiting from a well-organized structure and nanosized particle embedding, the as-prepared VNxOy phase could favor zinc-ion insertion/extraction due to the strong affinity of N element with Zn2+. Systematic investigations show that the controllable strategy yields positive effects on the electrochemical performances including enhanced rate capability and cycling stability, which are superior to those of the V2O3/C cathode. As a result, we have achieved fast charging/discharging capability at 10 A g–1 and stability exceeding 700 cycles at 3 A g–1 with nearly 100% Coulombic efficiency. Interestingly, the pouch-cell-like devices with ∼24 mAh could light an LED effectively. This work may pave the way to obtaining highly active V-containing compounds with structure design to improve electrochemical performances of AZIBs.
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高影响因子
危险品化学品经营许可证（带存储）