Energy Storage Materials
·
2024
·
IF 18.9
Zhenyu Fu,Yuhan Li,You Zhou,Weiya Zhang,Lirong Huang,Ling Weng
Lithium metal batteries have potentially high energy density, but severe uncontrolled lithium dendrites and unstable side reactions prevent large-scale applications. Serial three-dimensional porous poly (vinylidene fluoride) and copolymer membrane-based composite gel electrolytes are designed by introducing MIL-125 (Ti) and ethylene carbonate. Abundant lithium-ion transportation channels and homogeneous ion transport microregion are provided the new type porous fluoropolymer substrate. We also find that crystalline phase and dielectric properties of serial polymer membrane have significant impact on electrochemical performance for composite gel electrolytes. The mechanical and dielectric property of composite electrolyte enhanced by incorporating uniform and well distribution MIL-125 (Ti), which improve the electrolyte/electrode interface charge distribution and promote uniform lithium deposition, leading to lithium dendrite suppression. MIL-125 (Ti)/P(VDF-TrFE-CTFE) composite membrane shows the enhanced maximum strain of 181%, thermal stability (188°C) and corresponding composite gel electrolyte reflects higher ionic conductivity of 1.7 × 10 -3 S cm -1 and wider electrochemical window at room temperature than PVDF and PVDF-HFP composite electrolytes. Expectedly, quasi-solid state lithium metal battery of MIL-125 (Ti)/P(VDF-TrFE-CTFE) composite gel electrolyte exhibits higher discharge capacity (152.8 mAh g -1 ) at 240th cycle and 1 C, longer cycling life and better rate performance under large current density than PVDF and PVDF-HFP composite electrolytes.
研究领域:
材料科学
·
电化学
·
电池技术
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Xiaohong Li,Cai Ye,Jianjun Chen,Meijing Wang
A novel aluminum and titanium co-doped polycarbosilane (PATCS) was synthesized by the reaction of liquid polycarbosilane (LPCS), Al(acac) 3 , and Ti(Cp) 2 Cl 2 . The thermal polymerization mechanism of the PATCS was that Si-H bonds in LPCS reacted with C=C/Ti-Cl bonds in Ti(Cp) 2 Cl 2 and Al-O-C/Al-O=C groups in Al(acac) 3 to form Si-Ti, Si-C-C, Si-O-Al bonds. The TG-DSC results showed that the synthesized PATCS exhibited greater stability and a higher ceramic yield compared to PACS. A novel type Si(Al,Ti)CO ceramic fibers (AT-11) with tensile strength (2222 MPa) were obtained by melt-spining, curing, pyrolysis of the synthesized PATCS. After sintering, the AT-13 showed excellent electromagnetic wave absorption. When the thickness reached 2.3 mm, the minimum reflection loss (RL min ) vaule and the EAB were -52.02 dB and 5.12 GHz (RL < −10 dB, 10.64-15.76 GHz), respectively. While the AT-18 fibers showed higher high-temperature creep resistance in the range of 1300∼1700 °C than those of Si(Al)C ceramic fibers.
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2022
·
IF 6.364
Qingyi Kong,Sijia Huo,Lei Chen,Yujin Wang,Jiahu Ouyang,Yu Zhou
Fully dense (Zr, Ti)B 2 -(Zr, Ti)C-SiC ceramics were prepared by reactive hot-pressing using ZrB 2 , TiC, and SiC as the initial materials for the first time. Effects of SiC addition on the microstructure evolution and mechanical properties were reported. The in-situ reaction between ZrB 2 and TiC as well as the SiC addition leads to the grain refinement. Besides, elongated (Zr, Ti)B 2 plate-like grains are obtained due to the occurrence of a transient liquid phase, which leads to the crack deflection in the matrix effectively. Mechanical properties are improved significantly due to grain-refinement and solid solution strengthening, and plate-like grains toughening effects. The ZrB 2 -10 mol%TiC composite with 10 mol% SiC additional exhibits good comprehensive mechanical properties of the hardness of 20.2 GPa, the flexural strength of 803 MPa, and the fracture toughness of 5.7 MPa m 1/2 .
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Huijiao Wang,Zhongyi Li,Fengyuan Zhang,Yuxiang Wang,Xian Zhang,Jianbing Wang,Xuwen He
Three types of Magnéli phase anodes (Ti/Ti 4 O 7 , Ti/Ti 4 O 7 -PbO 2 -Ce, and Ti/Ti 4 O 7 nanotube arrays (NTA)) were fabricated, characterized, and compared with other typical active and non-active anodes (i.e., BDD, Ti/Pt, Ti/RuO 2 -IrO 2 , and Ti/IrO 2 -Ta 2 O 5 ) for electro-oxidation treatment of p -nitrophenol (PNP) solution and a real coal chemical concentrated brine in this study. Characterization results indicate a nanotube array structure of Ti/Ti 4 O 7 NTA, and a compact coating of Ti 4 O 7 microparticles and PbO 2 -Ce nanocrystals on the Ti substrate for Ti/Ti 4 O 7 and Ti/Ti 4 O 7 -PbO 2 -Ce, respectively. The three anodes present relatively high oxygen evolution potentials (2.16–2.44 V vs SCE), showing good capacity of electro-generating reactive oxidative species for pollutant degradation. After 30 min of EO treatment, Ti/Ti 4 O 7 NTA and Ti/Ti 4 O 7 removed 89–92% of PNP, which were 10–60% higher than Ti/Pt, Ti/RuO 2 -IrO 2 , and Ti/IrO 2 -Ta 2 O 5 , and were almost comparable with BDD (95%). Furthermore, Ti/Ti 4 O 7 NTA and Ti/Ti 4 O 7 kept very efficient for mineralization of PNP solution and real coal chemical concentrated brine. For Ti/Ti 4 O 7 -PbO 2 -Ce, its degradation efficiency was lower than other two Magnéli phase anodes, but still competitive compared with other active anodes. Thanks to their high removal efficiencies, the three Magnéli phase anodes required relatively low energy demand for pollutant mineralization. Besides, operational parameters such as electrolyte and current density were also very significant for efficient pollutant removal. The results of this study suggest Magnéli phase electrodes as promising and cost-effective anode materials for industrial wastewater treatment, with Ti/Ti 4 O 7 NTA and Ti/Ti 4 O 7 being more efficient options.
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高影响因子
MOLECULES
·
2023
·Vol. 28
·期 5
·2189
·
IF 4.6
Yunqing Zhu,Bingqing Li,Yongming Wang,Tian Wang
Electrocatalytic oxidation (ECO) has attracted attention because of its high efficiency and environmental friendliness in water treatment. The preparation of anodes with high catalytic activity and long service lifetimes is a core part of electrocatalytic oxidation technology. Here, porous Ti/RuO2-IrO2@Pt, Ti/RuO2-TiO2@Pt, and Ti/Y2O3-RuO2-TiO2@Pt anodes were fabricated by means of modified micro-emulsion and vacuum impregnation methods with high porosity titanium plates as substrates. The scanning electron microscopy (SEM) images showed that RuO2-IrO2@Pt, RuO2-TiO2@Pt, and Y2O3-RuO2-TiO2@Pt nanoparticles were coated on the inner surface of the as-prepared anodes to form the active layer. Electrochemical analysis revealed that the high porosity substrate could result in a large electrochemically active area, and a long service life (60 h at 2 A cm−2current density, 1 mol L−1H2SO4as the electrolyte, and 40 °C). The degradation experiments conducted on tetracycline hydrochloride (TC) showed that the porous Ti/Y2O3-RuO2-TiO2@Pt had the highest degradation efficiency for tetracycline, reaching 100% removal in 10 min with the lowest energy consumption of 167 kWh kg−1TOC. The reaction was consistent with the pseudo-primary kinetics results with a k value of 0.5480 mol L−1s−1, which was 16 times higher than that of the commercial Ti/RuO2-IrO2electrode. The fluorospectrophotometry studies verified that the degradation and mineralization of tetracycline were mainly ascribed to the •OH generated in the electrocatalytic oxidation process. This study thus presents a series of alternative anodes for future industrial wastewater treatment.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Handong Jiao,Jianxun Song
Owing to the enhanced selective depolarization effect of the liquid Cu, Ti has been successfully collected from mixed oxide ores or slags by using advanced molten oxide electrolysis (MOE) configuring with a liquid Cu cathode. However, the products prepared via above process are Cu-Ti alloys. Additional process is needed for the separation of Ti from those alloys. To achieve this goal, here, we selected a simple electrochemical approach to separate Ti from the Cu-Ti alloys in molten salt. Compared to the pure Cu electrode, the Cu-Ti alloys with different Ti contents show more negative electro-oxidation potential, which, in principle, indicates that Ti could be electrochemically extracted from the Cu-Ti alloys. Furthermore, the results of constant current electrolysis show that the effective separation of Ti is affected by the anodic current density and the Ti content in the Cu-Ti alloys. Specifically, the anodic current density, enabling the effective separation of Ti, increases with the increase of the Ti content in the Cu-Ti alloys. We have fitted a relationship equation between the anodic current density and the Ti content, which will be helpful for guiding separation of Ti from the Cu-Ti alloys. These findings confirm the feasibility of the molten salt electrolysis for the separation of Ti, and also make the Ti extraction based on the advanced MOE a complete process.
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2019
·
IF 3.858
Ruili Xiao,Yini Pan,Jie Li,Lingyi Zhang,Weibing Zhang
The highly selective enrichment of phosphopeptides is vital for the research of phosphorylated proteomics. Herein, a magnetic bimetallic metal-organic framework (MOF) with Zr-O and Ti-O clusters (denoted as Fe 3 O 4 @SiO 2 @(Zr-Ti-PTA) 15 ) has been fabricated using a layer-by-layer assembly approach via the coordination of metal ions with carboxyl groups. The composite has large specific surface area (135.84 m 2 g −1 ) and superparamagnetism (62.03 emu g −1 ). Compared with single-metal cluster MOF, the Fe 3 O 4 @SiO 2 @(Zr-Ti-PTA) 15 showed higher binding capacity (100 mg g −1 ), enhanced affinity, better selectivity (n β-casein : n BSA = 1 : 2000) and sensitivity (0.3 fmol/μL) towards phosphopeptides due to the combination of the dual metal clusters. Furthermore, the Fe 3 O 4 @SiO 2 @ (Zr-Ti-PTA) 15 was successfully applied to extracting phosphopeptides from non-fat milk tryptic digest, and 10 mono-phosphopeptides and 22 multi-phosphopeptides were captured. As a result, 1294 phosphopeptides (476 multi-phosphopeptides and 818 mono-phosphopeptides) were selectively extracted and detected from tryptic digest of rat brain extract, indicating its great application potential in phosphorylated proteomics research.
研究领域:
分析化学
·
蛋白质组学
·
材料科学
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DOI
PubMed
高影响因子
MINERALS ENGINEERING
·
2025
·
IF 5
Yubo Ge,Hualing Zhao,Guiqing Zhang,Qinggang Li,Shengxi Wu,Zhiyong Gao
In previous work, we developed an H 2 SO 4 -Fe 2 (SO 4 ) 3 roasting and water leaching method to leach rare earth elements (REEs), niobium (Nb), and titanium (Ti) from a low-grade concentrate mixture of the Baerzhe ore deposit in China ( Ge et al., 2024 ). However, conventional chemical precipitation and fluorine-ligand extraction methods for separating REEs/Nb/Ti in the leach solution face challenges, including co-precipitation of REEs and Nb/Ti, low recovery efficiency, and significant environmental concerns. To address these issues, a novel two-step solvent extraction process for efficient separation and recovery of Nb and Ti from leach solution was proposed in this work. The quaternary ammonium salt extractant (N263-CO 3 2- ) was employed to selectively co-extract Nb and Ti from the leach solution for achieving effective separation them from REEs. The resultant Nb(OH) 5 /Ti(OH) 4 precipitates were dissolved in H 2 C 2 O 4 -H 2 SO 4 mixture for selective extraction of [NbO(C 2 O 4 ) 2 - ] using tri-n-octylamine (TOA). The extraction mechanism confirmed that N263 preferentially extracts Nb/Ti via anion exchange, with the primary contribution from N263-CO 3 2- to Nb/Ti extraction, followed by N263-SO 4 2- , while protonated TOA selectively extracts [NbO(C 2 O 4 ) 2 - ] through anion–cation association. Ultimately, the recovery efficiencies of Nb and Ti reached 96.0 % and 69.0 %, respectively, producing Nb 2 O 5 (99.6 %) and TiO 2 (99.2 %), with REEs losses < 0.5 %. This study offers a novel approach for the efficient selective separation and recovery of Nb/Ti from leach solution.
研究领域:
冶金学
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材料科学
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化学工程
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环境科学
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高影响因子
RARE METALS
·
2024
·Vol. 43
·期 6
·2671-2681
·
IF 9.6
Ren Zhuang-He,Zhang Xin,Zhang Wen-Xuan,Huang Zhen-Guo,Yang Li-Mei,Yang Ya-Xiong,Li Zheng-Long,Li Juan,Sun Wen-Ping,Gao Ming-Xia,Pan Hong-Ge,Liu Yong-Feng
Ti-based catalysts are known to improve the hydrogen storage performance of NaAlH 4 by facilitating the dissociation/recombination of H–H and Al–H bonds. The catalytic activity of metallic Ti species strongly depends on its particle size and dispersity. Ti clusters and even single atoms are therefore highly desirable, but their controllable fabrication has been highly challenging. Herein, we demonstrate a novel facile sonochemical synthesis of a Ti–O clusters featuring single Ti atom catalyst at room temperature. Through reducing TiCl 4 by MgBu 2 with ultrasound instead of heating as driving force, numerous single Ti atoms coupled with Ti–O clusters with Ti loading on graphene (Ti 1 /Ti–O@G) up to 22.6 wt% have been successfully obtained. The prepared Ti 1 /Ti–O@G contributes high reactivity and superior catalytic activity, therefore enabling full dehydrogenation of NaAlH 4 at 80 °C in thermogravimetric mode and re-hydrogenation at 30 °C and 10 MPa with 4.9 wt% H 2 . This fact indicates for the first time that single Ti atom catalyst with high loading is highly effective in catalyzing hydrogen cycling of NaAlH 4 at remarkably reduced temperatures. Graphical abstract
研究领域:
材料化学
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能源化学
·
纳米催化
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储氢材料
·
无机合成
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
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IF 6.371
Lianbo Wang,Jun Ren,Yuantao Zhao,Vincent Ji,Huabing Liu,Min Liu,Zemin Wang,Chuanhai Jiang,Zhanyong Wang
In this study, Ni-Ti composite coatings were prepared using electrodeposition . Experimental results and COMSOL computer simulation revealed the effect of the Ti microparticles on the microstructure and properties of the Ni-Ti composite coating. The incorporated Ti microparticle lead to grain refinement, texture elimination which were correlated with the effect of current concentration and heterogeneous nucleation. Domains consisting of inner nano-grains and outer radial columnar grains were located around the Ti microparticles, where the Ti microparticles acted as seeds. This was closely correlated with the time-dependent plating conditions like current density and electric field lines during incorporation process of the Ti microparticles. Besides that, during the incorporation process of Ti microparticles, current density concentration on the “V”-shaped valley between closely neighboring Ti microparticles promote the presence of fine Ni grains, existing between but not belonging to the Ti microparticles. Selective deposition of Ni metal on Ti microparticle surface, local current density concentration and the aggregation of Ti microparticles were observable, contributing to the spatial heterogeneity of the microstructure. Compared with the pure Ni coating, the average hardness of the Ni-Ti composite coating increased from 2.91 ± 0.43 GPa to 3.98 ± 0.46 GPa, leading to the enhanced wear resistance. However, spatial heterogeneity of the hardness distribution was observed due to the heterogeneous microstructure of Ni-Ti composite coating, which confined the improvement of wear resistance.
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高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2022
·Vol. 106
·期 1
·158-172
·
IF 2.606
Luo Qiuzi,Sun Yihua,Guo Jin,Zhang Jiangyu,Fang Liang
In this study, the effect of Ti doping ratio on Ti/Ga co-doped ZnO (TGZ) nanopowders was investigated. TGZ nanoparticles with different Ti loadings were prepared using the sol-gel method and analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), infrared spectroscopy (FT-IR), ultraviolet-visible spectrophotometer (UV-Vis), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL). The results show that when the Ti doping content is low (0.25at%–1at%), all TGZ samples are single-phase and have the same wurtzite structure as pure ZnO, and when the Ti doping content is high (1.5at%–6at%), a second phase appears, which is the Zn 2 TiO 4 inverse spinel phase. When the doping is low, Ti and Ga can replace the position of Zn, the particle size of ZnO is reduced, the absorption of visible light is enhanced, and the catalytic degradation ability is improved. When the powder is highly doped, the shape distortion of the powder is obvious, and the crystal changes from single-phase to multi-phase, but the absorption of visible light is enhanced, and the recombination of electron-hole pairs is reduced. Through the MB degradation experiment, it was found that T 1.5 G 1.5 Z had the strongest degradation ability, and the degradation rate reached 96% in 150 min. With the further doping of Ti, the degradation rate remained at a high level.
Graphical abstract
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Wenqiang Ai,Jinnuo Yang,Jiahui Lv,Ya'nan Zheng,Ruiqi Wang,Yang Liu,Lei Zu,Huiqin Lian
Sodium-ion batteries (SIBs) attract significant interest due to the abundance and affordability of sodium resources, alongside their environmentally sustainable profile. Nevertheless, further research is required to improve high-rate performance and long-term cycling stability. Black phosphorus (BP), with its high theoretical specific capacity, and MXenes, known for their excellent electrical conductivity and multiple functional groups, are both promising anode candidates for SIBs. To address these challenges, a composite anode of BP/Ti 3 C 2 T X MXene/carbon nanotubes (CNTs) (BMC) containing phosphorus-oxygen-titanium (P-O-Ti) bonds is prepared through a straightforward two-step ball milling process. The microstructure and bonding conformation of the BMC composite material are studied using a variety of characterization methods. Compared to the BP/CNTs (BC) anode, the BMC anode demonstrates superior cycling stability and high-rate performance. Kinetic analysis further reveals favorable electrochemical performance. The P-O-Ti bonds in BMC significantly enhance SIBs performance by stabilizing the BP-based composite structure. As a result, the reversible specific capacity of BMC anode reaches 630.7 mAh g −1 after 1400 cycles at 2.0 A g −1 . Furthermore, the reversible specific capacity remains stable at 281.1 mAh g −1 even after 1000 cycles at 10.0 A g −1 . This work presents a straightforward method for preparing BMC anodes.
研究领域:
材料科学
·
电化学
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高影响因子
危险品化学品经营许可证（带存储）