Advanced Science
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2026
·
IF 14.1
Yanmin Liang,Hongyue Ma,Feier Bai,Jing Zhang,Yan Qi,Bing Shao
The interference of phospholipids in serum poses a critical bottleneck for nontargeted human biomonitoring of chemical hazards. Here, we report a Ti-doping strategy to activate adjacent Zr sites in a bimetallic Zr/Ti metal-organic framework (B-Zr/Ti MOF) for cooperative and efficient phospholipid removal. By precisely engineering the Ti content, the optimal B-Zr/Ti MOF achieves near-complete removal of major phospholipid subclasses while maintaining high recoveries (>50%) for over 500 diverse chemical hazards, even at trace levels (10 ng mL − 1 ). Combined XPS, FT-IR, and DFT calculations reveal that Ti incorporation modulates the local electronic environment, converting adjacent Zr sites into highly active Lewis acid centers that synergistically anchor phosphate headgroups via inner-sphere coordination. When integrated into a nontargeted LC-HRMS workflow, this material dramatically reduces matrix effects and expands detectable feature coverage. This work establishes bimetallic node engineering as a powerful strategy to overcome matrix interference in exposomics and precision biomonitoring.
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高影响因子
Journal of Materials Research and Technology-JMR&T
·
2026
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IF 7.3
Jian-fa Jing,Shuai Wang,Yu-feng Guo,Feng Chen,Jinlai Zhang,Ling-zhi Yang,Guan-zhou Qiu
This study elucidates the influence of the CaO/MgO mass ratio and quaternary basicity (R 4 (CaO + MgO)/(SiO 2 /Al 2 O 3 )) on slag-phase evolution and element partitioning during electric-furnace smelting of pre-reduced vanadium titanomagnetite pellets. Thermodynamic calculations were employed to delineate a Ti-rich pseudobrookite-type slag domain that is amenable to subsequent acid-leaching processing for TiO 2 extraction. Smelting experiments under optimized conditions revealed that a balanced slag composition can simultaneously achieve high Ti enrichment in the slag and efficient Fe/V recovery in the metal phase, while suppressing the formation of CaTiO 3 . At 1600 °C with a holding time of 30 min and a carbon addition of 2 wt%, the combination of CaO/MgO = 0.5 and R 4 = 0.9 was identified as an optimal operating condition, yielding recovery rates of 99.82% for Fe, 93.12% for V, and 94.64% for TiO 2 . XRD and EPMA results show that the resulting slag is predominantly composed of anosovite, with subordinate diopside and magnesium titanium spinel, confirming the effective retention of Ti in the slag and the preferential partitioning of Fe and V into the metal phase. Collectively, these findings define a viable composition window for the design of acid-soluble titanium-bearing slags within the direct-reduction/electric-furnace processing route for vanadium titanomagnetite.
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高影响因子
VACUUM
·
2026
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IF 4.3
Gongge Lin,Xinghong Zhang,Xinxin Ma
This study employed magnetron sputtering to deposit titanium selenide coatings on Ti-6Al-4V titanium alloy, aiming to improve wear resistance. By varying the polarity and magnitude of the bias voltage applied to the substrate surface, we identified the optimal process parameters for TiSe 2 formation. The results demonstrated that the coating surface hardness reached 16.0 GPa (increased by three times). In constant-load ball-on-disk friction tests, the friction coefficient decreased to 0.27 ± 0.041 with a reduced wear volume. This study provides a technical foundation for the preparation of titanium selenide coatings on titanium alloy surfaces.
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高影响因子
JOURNAL OF APPLIED ELECTROCHEMISTRY
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2026
·Vol. 56
·期 5
·82
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IF 3.7
Liu Yanyue,Guo Teng,Chu Yuanhong,Chen Shiguo,Li Zijiong
Aqueous zinc-ion batteries have emerged as a highly promising energy storage technologies due to their abundant resources, high safety, and environmental friendliness. However, the cycle stability of Aqueous zinc-ion batteries is severely constrained by zinc dendrite growth on the anode and accompanying side reactions in the electrolyte. Mitigating this effect is crucial for the large-scale application of zinc-ion batteries, and separator modification is regarded as an effective strategy to address these challenges. Here, a method of modifying the glass fiber composite separator with amino-functionalized MXene (Ti₃C₂Tₓ) is attempted to alleviate these problems. The modified Ti₃C₂Tₓ was uniformly loaded on the surface of glass fiber separator by vacuum filtration to fabricate the composite separator. Systematic characterization and electrochemical testing revealed that the composite separator with an optimal coating loading of 2 mg cm⁻² significantly enhanced battery performance. The cycle life of Zn//Zn symmetric cells were markedly extended at 5 mA cm⁻², and specifically, reached 250 h at 0.5 mA cm⁻², which is about 8 times longer than that of the unmodified glass fiber separator (~ 30 h). Furthermore, the Zn||MnO₂ all-cell based on this composite separator also exhibited a higher capacity retention rate after 1200 cycles compared to the blank separator group. This provides an effective research direction for the design of high-performance Aqueous zinc-ion batteries separators. Graphical abstract
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Jinting Chen,Lei Wang,Ming Yao,Yue Pan,Zeyu Zhang,Yawei Li,Haixiang Huang,Bogu Liu,Jianguang Yuan,Bao Zhang,Ying Wu
To address the sluggish dehydrogenation kinetics and high operating temperatures of LiBH 4 , Ti 2 VC 2 MXene was incorporated with LiBH 4 to modify its dehydrogenation performance. With 40 wt% Ti 2 VC 2 MXene additive, the onset dehydrogenation temperature of LiBH 4 is reduced to 98.31 °C, while the peak hydrogen release occurs at 332.86 °C. Isothermal dehydrogenation measurements demonstrate that the composite rapidly desorbs 9.50 wt% H 2 within 40 min at 325 °C, 10.67 times faster than that of LiBH 4 . Furthermore, the addition of 40 wt% Ti 2 VC 2 MXene effectively lowers the activation energies for the dehydrogenation to 104.76 and 112.99 kJ mol⁻ 1 , respectively. Mechanism studies reveal that the enhanced dehydrogenation performance originates from the in-situ formation of catalytic active species, including Ti 0 , V 0 and Li 3 BO 3 , promoting the cleavage of ionic and covalent bonds in LiBH 4 . Simultaneously, the multiphase Ti/V/Li 3 BO 3 hetero-ensembles create abundant interfacial boundaries, serving as efficient pathways for hydrogen diffusion and accelerating the dehydrogenation kinetics.
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Journal of Materials Research and Technology-JMR&T
·
2026
·
IF 7.3
Hui Chen,Taomei Zhang,Zhijie Ke,Shichao Liu,Min Liu,Dan Li,Chao Chen,Kechao Zhou
This study comparatively investigates the effects of lanthanum hexaboride (LaB 6 ) addition on the microstructure and mechanical properties of Ti-6Al-4V components fabricated by spark plasma sintering (SPS) and selective laser melting (SLM). Gas-atomized spherical Ti-6Al-4V powders were mixed with irregular LaB 6 powders (1.0 wt%) and consolidated using SPS and SLM, respectively. In both processes, LaB 6 partially decomposed into La 2 O 3 and titanium borides, including TiB and TiB 2 . The SPS-processed Ti-6Al-4V, with or without LaB 6 , exhibits a lamellar α+β structure. In contrast, the SLM-fabricated Ti-6Al-4V shows a fully acicular α′ martensitic structure, while the addition of LaB 6 transforms it into a mixed microstructure consisting of α′ martensite and α plates. Owing to the refined structure resulting from the high cooling rate inherent to the SLM process, the SLM-processed Ti-6Al-4V exhibits a higher ultimate compressive strength (1920 MPa) than its SPS counterpart (1540 MPa). The in-situ formation of La 2 O 3 and titanium borides effectively increases the yield strength of both SPS- and SLM-processed Ti-6Al-4V. However, the addition of LaB 6 also leads to a deterioration in ultimate compressive strength, attributed to the reduced plasticity caused by weak interfaces between undissolved LaB 6 particles and the Ti-6Al-4V matrix.
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MATERIALS RESEARCH BULLETIN
·
2026
·
IF 5.8
Zhiqi Yao,Kejie Li,Jiaqi Zhao,Haicheng Xia,Zuoling Fu,Sung Heum Park
A RE-doped Bi 4 Ti 3 O 12 perovskite-based luminescence material is developed. • Dual NIR-II emissions of Ho 3+ /Er 3+ are achieved under 980 nm excitation. • High performance (Sr=1.3% K-1) phonon-assisted ratiometric thermometer is constructed. High-performance optical thermometers operating in the second near-infrared (NIR-II) window hold great promise for biomedical applications due to their tissue penetration depth and minimal autofluorescence. However, developing reliable NIR-II thermometers with high sensitivity and robust performance across a wide temperature range remains a challenge. Herein, the luminescence properties and NIR-II ratiometric thermometric performance of Er 3+ , Ho 3+ , Yb 3+ co-doped Bi 4 Ti 3 O 12 (BTO) perovskite oxide were investigated. Upon 980 nm excitation, NIR-II emission from Er 3+ at 1560 nm ( 4 I 13/2 → 4 I 15/2 ) and Ho 3+ at 1200 nm ( 5 I 6 → 5 I 8 ) was achieved. A ratiometric thermometer was constructed using the temperature-dependent intensity ratio, I Er /I Ho . Relying on the thermal dependence of this ratio, the BTO system exhibits a relative sensitivity (S r ) of 1.3% at 333 K. Furthermore, the results suggest that phonon characteristics of the BTO host influence energy-transfer processes and NIR-II thermometric performance, highlighting importance of host properties in designing rare-earth-doped NIR-II thermometric materials. Download: Download high-res image (154KB) Download: Download full-size image A high-sensitivity NIR-II ratiometric thermometer is achieved in Bi 4 Ti 3 O 12 : Yb 3+ , Ho 3+ , Er 3+ Perovskites via a unique phonon-assisted energy transfer pathway.
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Small
·
2026
·
IF 11.8
Xuewen Xia,Fuqian Wang,Nannan Zhang,Li Tao,Xin Yuan,Xueqiang Zhang,Zhenqiang Jiang,Shujuan Wang,Xing Yu,Zhongya Pang,Guangshi Li,Xionggang Lu,Xingli Zou
Metal vacancies in MXene catalysts are beneficial for modulating electronic structures and enhancing metal-support interactions for single-atom (SA) immobilization, but controlling their concentration and understanding their synergy with SAs remains challenging. Here, we develop a two-step electrochemical etching strategy in a deep eutectic solvent to create tunable Ti vacancies within MXene (Ti V -Ti 3- x C 2 T y ) and confine Pt single atoms (Pt SA -Ti V -Ti 3- x C 2 T y ). The vacancy concentration is precisely controlled, and the dynamic etching-deposition process prevents Pt SAs aggregation. The resulting catalyst with only Pt content of 0.57 wt.% exhibits excellent alkaline hydrogen evolution reaction (HER) performance: an overpotential of 31 mV at 10 mA cm −2 , a turnover frequency of 12.22 H 2 s −1 , and a mass activity of 11.95 A mg Pt −1 at 100 mV, outperforming commercial Pt/C. The coexistence of Pt SAs and adjacent Ti vacancies synergistically tunes the local electronic structure of Pt sites and modulates metal-support bonding, lowering the water dissociation barrier and optimizing hydrogen adsorption energy to boost alkaline HER. This work offers a controllable strategy for engineering metal vacancies in MXenes for efficient single-atom catalysts and establishes a platform for investigating vacancy-SA synergistic mechanisms.
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高影响因子
APPLIED GEOCHEMISTRY
·
2026
·
IF 3.5
Chundan Gan,Chunlai Hong,Jin-yan Yang
Vanadium (V)-bearing tailings can act as long-term sources of mobile V, yet the roles of tailings-associated minerals and residual beneficiation reagents in regulating V (im)mobilization remain unclear. Here, binary reactions between dissolved V(V) and representative minerals of V–Ti magnetite tailings, alongside tailings suspensions amended with oxalic acid or carboxymethyl cellulose (CMC), were used to isolate mineral- and reagent-specific controls on V transformation. Poorly crystalline Fe oxides, particularly ferrihydrite and lepidocrocite, showed the strongest V immobilization, decreasing dissolved total V from 25.5 mg/L to 6.16–10.5 and 6.21–8.41 mg/L, respectively. FTIR evidence for Fe–O–V surface complexation on ferrihydrite, together with limited structural changes in crystalline Fe and Fe–Ti phases, indicated that reactive surface sites rather than bulk mineral transformation dominated V immobilization. Birnessite retained V under oxidizing conditions while maintaining the aqueous V pool as V(V), whereas FeS induced reducing conditions and promoted the formation of dissolved non-V(V) species. In whole-tailings systems, oxalic acid mobilized V from the tailings, yielding 26.4 mg/L dissolved total V, and facilitated Fe(III)-to-Fe(II) transformation, with Fe(II) accounting for 95.0% of dissolved Fe by day 30 of incubation. However, XRD and FTIR showed no detectable transformation of the bulk tailings assemblage, indicating selective dissolution and redox transformation of reactive minor or poorly crystalline phases. In contrast, CMC had limited effects on V release. These findings show that reactive minor phases and residual oxalate can strongly influence V (im)mobilization, highlighting the need to incorporate reagent residues and Fe/S redox processes into risk assessments of V–Ti magnetite tailings.
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·
IF 6.3
Minghao Zhao,Kun Yang,Wangwei Ru,Hao Ji,Yibo Wang,Wei Chen,Xiaobin Tang
The passivation behavior of polycrystalline structural ceramics under extreme corrosion conditions is critical for future advanced energy applications, including nuclear waste immobilization. The current study investigated the chemical durability of the high-entropy pyrochlore rare earth Ti pyrochlore (HE-RE 2 Ti 2 O 7 ) by focusing on the fundamental understanding of the nexus between chemical composition and the structural evolution of the surface formation of passivation film. Results provide evidence to support that the formation of a multilayer surface passivation film enriched in both A and Ti elements is associated with a dissolution-reprecipitation mechanism, which is strongly associated to the metal-oxygen bonding strength. The formation of passivation film dominated by the synergistic effect of localized bonding environment led to dynamic transition between congruent and incongruent leaching mechanisms, and further affect the chemical durability. These findings establish a framework for designing corrosion-resistant nuclear waste forms by focusing on its surface alteration behavior through tuning the chemical composition.
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高影响因子
WATER RESEARCH
·
2026
·
IF 12.8
Beibei Liu,Na Pan,Chunyi Sun,Weiying Xu,Wen Song,Liangguo Yan,Tao Yan,Yu Du,Yanxia Zhao,Baoyu Gao
Hydrolyzed species critically govern the coagulation behavior of Ti-based coagulants in chemically enhanced primary sedimentation (CEPS), thereby influencing the subsequent anaerobic fermentation of CEPS sludge. However, whether and how preparation-induced Al-Ti speciation modulates solid-liquid interfacial interactions and substrate accessibility during acidogenic fermentation remains unclear, limiting the simultaneous optimization of pollutant removal and resource recovery. Here, polyaluminum-titanium chloride (PATC) composite coagulants with distinct hydrolyzed species distributions were synthesized by slow alkaline titration (S-PATC) and electrodialysis (E-PATC). Compared with S-PATC, E-PATC achieved 99.52%, 68.60%, and 71.38% higher removal efficiencies for PO 4 3− -P, UV 254 , and COD, respectively. The superior CEPS performance was attributed to the synergistic effects of highly charged small species and highly polymerized macromolecular species. Crucially, the hydrolyzed Al-Ti species introduced during CEPS acted as a front-end regulator of sludge fermentability by reconstructing solid-liquid interfacial interactions and modulating substrate accessibility. Compared with S-PATC-loaded sludge, E-PATC-loaded sludge exhibited weaker hydrophilic repulsion and higher volatile fatty acids (VFAs) production, which was associated with enhanced interfacial mass transfer. Under alkaline conditions, enhanced hydrophilic repulsion coexisted with electrostatic repulsion in the E-PATC system, with the latter predominating and promoting greater sludge disintegration. Consequently, the maximum concentration of soluble organic matter increased from 764 mg/L to 2222 mg/L on Day 4, providing abundant substrates for acidogenic microorganisms. As a result, the VFAs yield reached 1250.83 mg-COD/L, which was 6.67% higher than that obtained with S-PATC-loaded sludge. This work provides evidence that hydrolyzed Al-Ti species play a pivotal role in coagulation behavior and subsequent sludge fermentation.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Qianyi Li,Shanshan Deng,Donglai Li,Junlin Yang,Haibo Jin,Jingbo Li
Cesium tungsten bronze (Cs x WO 3 ), a unique energy-saving material, has attracted great interest because of its excellent visible transmittance and near-infrared absorption. In order to improve its optical properties , the Ti doping modification was carried out in this work, and a series of Ti-doped Cs X WO 3 (Ti-Cs x WO 3 ) nanopowders were synthesized by a solvothermal reaction and post-annealing. The 1.71 at. % of Ti dopants achieved remarkable enhancement of both integral visible transmittance ( T lum , 380–780 nm) and near-infrared shielding efficiency ( Ψ NIR , 780–2500 nm) of Cs x WO 3 . The T lum and Ψ NIR of the 1.71 at. % Ti-Cs x WO 3 polymer film reaches 63.87 % and 76.90 %, respectively, higher by 51.88 % and 65.00 % than those of the Cs x WO 3 film. The improvement of T lum is attributed to the broadening of band gap and smaller size of the nanoparticles induced by Ti doping, and the enhanced Ψ NIR would result from the increased free electron concentration and energy levels of impurities. The incorporation of Ti elements renders Cs x WO 3 a promising application in the field of energy saving.
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