MATERIALS LETTERS
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2018
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IF 2.687
Ying Lei,Wensheng Gao,Yu Li,Rundong Wan,Wen Chen,Rui Zheng,Leiqiang Ma,Hongwei Zhou
In the present wok, a series of Ti-filled and Te-doped skutterudite compounds Ti x Co 4 Sb 11.5 Te 0.5 (x = 0.2, 0.3, 0.5) were successful fabricated by combination of microwave synthesis and spark plasma sintering technique. The microstructure and thermoelectric properties of Ti x Co 4 Sb 11.5 Te 0.5 bulks have been investigated systematically. The experimental results show that nearly single phase skutterudite were obtained by 5 min microwave synthesis. The Ti 0.3 Co 4 Sb 11.5 Te 0.5 bulk has smallest and uniform grain size of about 2 μm. The influences of Ti concentration on thermoelectric properties were discussed. A highest ZT of 0.60 for Ti 0.3 Co 4 Sb 11.5 Te 0.5 was achieved at 773 K along with a total thermal conductivity of 3.72 W m −1 K −1 , one might obtain higher values at a higher temperature.
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2016
·Vol. 22
·期 42
·14831-14835
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IF 5.771
Liang Cui,Xuping Sun,Yuanhong Xu,Wenrong Yang,Jingquan Liu
Graphical Hydrogen generation : The catalytic dehydrogenation of NaBH 4 in alkaline media for on-demand hydrogen generation can be effectively driven by self-supported Co(CO 3 ) 0.5 (OH)⋅0.11 H 2 O nanowire array on Ti mesh (CHNA/Ti), with a high hydrogen generation rate of 4000 mL min −1 g Co −1 and a low activation energy of 39.78 kJ mol −1 . In this work, for the first time, a cobalt carbonate hydroxide (Co(CO 3 ) 0.5 (OH)⋅0.11 H 2 O) nanowire array on Ti mesh (CHNA/Ti) was applied to drive the dehydrogenation of alkaline NaBH 4 solution for on-demand hydrogen production. Compared with other nanostructured Co-based catalyst systems, CHNA/Ti can be activated more quickly and separated easily from fuel solutions. This self-supported cobalt salt nanowire array catalyst works as an efficient and robust 3D catalyst for the hydrolysis reaction of NaBH 4 with a hydrogen generation rate of 4000 mL min −1 g Co −1 and a low apparent activation energy of 39.78 kJ mol −1 and offers an attractive system for on-demand hydrogen generation.
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PubMed
高影响因子
Journal of Materials Research and Technology-JMR&T
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2025
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IF 6.6
Geng Tang,Hong Yang,Bingqing Zhao,Dunying Wang,Fangfang Zeng,Qibin Liu
The rapid repair of bone defects remains a challenging clinical goal, with bio-piezoelectric composites emerging as promising materials due to their ability to replicate bone’s natural composition and electrical functionality. This study developed hydroxyapatite (HA)-based composites incorporating (Ba,Ca)(Ti,Sn)O3-based piezoceramics, achieving piezoelectric coefficients of 28.7 ± 2.48 pC/N, 11.1 ± 0.57 pC/N, and 5.7 ± 0.98 pC/N at HA mass fractions of 10%, 20%, and 30%, respectively, with a porosity around 20%. The composites were synthesized with a solid-state sintering method. The phase structure, surface morphology, and ferroelectric domain configuration of the composites were characterized. Electrical properties, compressive strengthen, hydrophilicity, in vitro bioactivity, biocompatibility and osteogenic ability were assessed. X-ray diffraction (XRD) analysis confirmed that all composites consisted of perovskite structure and HA phases. Microscopic observations revealed the (Ba,Ca)(Ti,Sn)O 3 -based piezoceramics particles embedded within the HA matrix. Evenly dispersed, irregular pores were formed, and pore size decreased as the HA content increased. The composite with 20 wt.% HA exhibited dense, small wedge-shaped domains and ferroelectric orthogonal (O) phase. Importantly, these composites demonstrated favorable compressive strength, surface wettability and biocompatibility, along with enhanced bioactivity and osteogenic differentiation ability in vitro , underscoring their potential in bone tissue engineering applications.
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2024
·
IF 8
Zeyi Wang,Luyao Zhang,Rong Su,Lu Yang,Feng Xiao,Lichuan Chen,Ping He,Dingming Yang,Yali Zeng,Yun Zhou,Ying Wan,Bin Tang
The abuse and uncontrolled discharge of antibiotics present a severe threat to environment and human health, necessitating the development of efficient and sustainable treatment technology. In this work, we employ a facile one-step electrodeposition method to prepare polyaniline/graphite oxide (PANI/GO) and samarium (Sm) co-modified Ti/PbO 2 (Ti/PbO 2 -PANI/GO-Sm) electrode for the degradation of amoxicillin (AMX). Compared with traditional Ti/PbO 2 electrode, Ti/PbO 2 -PANI/GO-Sm electrode exhibits more excellent oxygen evolution potential (2.63 V) and longer service life (56 h). In degradation experiment, under optimized conditions (50 mg L −1 AMX, 20 mA cm −2 , pH 3, 0.050 M Na 2 SO 4 , 25 °C), Ti/PbO 2 -PANI/GO-Sm electrode achieves remarkable removal efficiencies of 88.76% for AMX and 79.92% for chemical oxygen demand at 90 min. In addition, trapping experiment confirms that ·OH plays a major role in the degradation process. Based on theoretical calculation and liquid chromatography-mass spectrometer results, the heterocyclic portion of AMX molecule is more susceptible to ·OH attacks. Thus, this novel electrode offers a sustainable and efficient solution to address environmental challenges posed by antibiotic-contaminated wastewater.
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高影响因子
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Dingding Duan,Hua Yang,Yaping Ding,Daixin Ye,Li Li,Guohong Ma
A novel three-dimensional molecularly imprinted electrochemical sensor (MIECS) was fabricated for ultra-trace detection of biomacromolecules bovine serum albumin (BSA), which was based on 3D porous electrocatalytic framework materials (AuNPs@NH 2 -MIL-125(Ti) composites) and graphene modified glassy carbon electrode. The AuNPs supported amino-functionalized Ti-benzenedicarboxylate porous metal-organic frameworks (Au/NH 2 -MIL-125(Ti)) was prepared by a simple and rapid ultrasonic method. The stable proteins molecularly imprinted polymers (MIPs) films were fabricated by electropolymerization using l -cysteine (L-Cys) as functional monomers and BSA as templates. The monomer L-Cys interact with AuNPs by Au S bonds and interact with BSA by hydrogen bonding and electrostatic interaction , which was characterized with UV–vis spectra. The morphology of the MIP modified electrode was characterized by scanning electron microscopy, transmission electron microscopy and atomic force microscope. Under the optimal conditions, the 3D MIECS exhibited a wide linear range of 10 −18 g mL −1 to 10 −12 g mL −1 of BSA and an extremely low detection limit of 4.147 × 10 −19 g mL −1 . The 3D MIECS has been applied to the assay of BSA in liquid milk samples with satisfying results.
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Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Liping Zhang,Hexia Yuan,Yiyun An,Huitong Li,Yiqing Gao,Huaran Sun
Coking reverse osmosis concentrated water contains refractory organic pollutants . If not treated, it will generate hazardous solid waste that cannot be utilized in the subsequent evaporation and crystallization process . In order to effectively remove organic substances from coking reverse osmosis concentrated water, Ti/PbO 2 electrode, Ti/Ce,Nd-PbO 2 electrode, and Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode were prepared. The electrodes were characterized by scanning electron microscopy, X-ray diffraction spectroscopy, and X-ray photoelectron spectroscopy, revealing that the average crystal grain size of lead dioxide on the surface of the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode is 29.58 nm. The electrochemical performance of the electrodes was tested using cyclic voltammetry and electrochemical impedance spectroscopy , which showed oxidation peaks at 1.37 V, 1.81 V, and 2.1 V for the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode, with a charge transfer resistance of 56.34 Ω. Accelerated life test indicated that the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode has an accelerated lifespan of 1050 min. The effects of interelectrode distance, pH value, current density , and other factors on the electrocatalytic oxidation of 3,5-di-tert-butylphenol by the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode were investigated, achieving a removal efficiency of 98.67 % under optimal conditions. Performance analysis of the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode demonstrated good stability. Treatment of actual coking reverse osmosis concentrated water using the Ti/P(ANI-co-Py)/Ce,Nd-PbO 2 electrode resulted in removal efficiencies of 87.76 %, 47.92 %, and 77.42 % for COD , TOC, and UV 254 , respectively. The current efficiency and energy consumption of electrocatalytic degradation of coking reverse osmosis concentrated water were 9.38 % and 0.15 kWh/g COD. This study provides a better treatment solution for the degradation of organic matter in coking reverse osmosis concentrated water.
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Open Life Sciences
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2024
·Vol. 19
·期 1
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IF 1.7
Xu Haitao,Li Siyuan,Guo Sutong,Guo Yu,Xu Peirong,Wang Ling,Ding Yujian,Feng Dehong
Because of stress shielding effects, traditional titanium (Ti) alloy scaffolds have a high elastic modulus, which might promote looseness and bone disintegration surrounding the implant, increasing the likelihood of a second surgery. In contrast, 3D-printed porous Ti alloy scaffolds can reduce the scaffold weight while enhancing biocompatibility. Further, these scaffolds’ porous nature allows bone tissue ingrowth as well as strong pore connectivity, which can improve nutrient absorption. Nevertheless, bare Ti alloy implants may fail because of inadequate bone integration; hence, adding a coating on the implant surface is an effective technique for improving implant stability. In this study, a composite coating comprising hydroxyapatite (HAP), chitosan (CS), tannic acid (TA) and copper ions (Cu 2+ ) (Cu 2+ /TA/HAP composite coating) was prepared on the surface of 3D printed porous Ti alloy scaffolds using electrophoretic deposition. Using the standard plate count method, Live/Dead bacteria staining assay, FITC Phalloidin and 4′,6-diamidino-2-phenylindole staining assay, and live/dead staining of cells we determined that the composite coating has better antibacterial properties and cytocompatibility as well as lower cytotoxicity. The Alkaline Phosphatase assay revealed that the coating results showed good osteogenesis potential. Overall, the composite coatings produced in this investigation give new potential for the application of Ti alloys in clinics.
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高影响因子
MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Honglin Qin,Lizhen Qiao,Chen Li,Xiuchao Yao,Bingyan Han
In this work, a novel composite Fe 3 O 4 /NiAl LDH/MIL-125 (Ti) was developed through modifying the Ti-based MOF into magnetic NiAl LDH materials and applied to efficiently extract organophosphorus flame retardants (OPFRs) from water samples. The prepared Fe 3 O 4 /NiAl LDH presented good extraction efficiency for OPFRs, and, electrostatic interaction and π-π interaction also played an important role for the extraction process, except for the selective metal-affinity coordination between the adsorbents and OPFRs. Some key factors influencing the magnetic solid-phase extraction efficiency were explored, including adsorbent amount, ultrasound time, solution pH, salt content, the type of elution solvent and eluent volume. Under the optimal conditions, the coefficients of determination (R 2 ) of the OPFRs were 0.9976–0.9996, and the limits of detection (S/N = 3) and limits of quantification (S/N = 10) were respectively 0.3–1.0 μg·L −1 and 1.0–3.0 μg·L −1 . The developed approach was applied for the extraction and determination of OPFRs in the environmental water samples, and the spiked recoveries ranged from 82.79 % to 111.32 %.
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CERAMICS INTERNATIONAL
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2025
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IF 5.6
Huilin Lun,Yi Zeng,Xiang Xiong,Houbu Li,Ziming Ye,Xiaoxu Liu
This work introduces fabricating single-phase ternary-anion carbide solid solution via solid-state diffusion of B and N. Initially, non-stoichiometric (Zr,Hf,Ti)C x with carbon vacancies was synthesized by modified spark plasma sintering. Then, using B 2 O 3 and g -C 3 N 4 as sources, (Zr 0.3 Hf 0.5 Ti 0.2 )(C 0.87 B 0.03 N 0.07 ) with face-centered-cubic structure was produced via B diffusion at 1100 °C and N diffusion at 1600 °C. Trace B (0.23 wt%) and N (0.71 wt%) in (Zr 0.3 Hf 0.5 Ti 0.2 )(C 0.87 B 0.03 N 0.07 ) was found to significantly enhance the oxidation resistance (higher onset temperature 520 ± 3 °C (particle size 2.5 ± 1.3 μm) than 475 ± 3 °C of (Zr 0.3 Hf 0.5 Ti 0.2 )C 0.85 and improve structural stability with more negative binding energy.
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高影响因子
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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2025
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IF 7
Wei Feng,Jian Zhang,Ruxia Liu,Yong Xiao,Guoqiang Luo,Qiang Shen
Particle-reinforced composite fillers allow precise control of joint microstructure to enhance mechanical performance. However, traditional designs often reduce joint deformability and face issues like particle agglomeration and poor interfacial wettability. To overcome these limitations, a micro-network of Cu-Ti reinforcements within the brazing seam via Ag- x TiH 2 composite filler was developed in this work, which enabled the fabrication of high-strength Si 3 N 4 /Cu joints. Optimal results were achieved with the Ag-4TiH 2 filler, wherein a eutectic liquid formed at the Ag-4TiH 2 /Cu interface during the initial brazing stage. Simultaneously, undissolved Ti reacts with Cu to yield submicron Cu 4 Ti 3 -dominated reinforcements. On the Si 3 N 4 surface, hypostoichiometric TiN/TiN 0 . 61 /TiN 0 . 5 nanocrystals grow sequentially, which is beneficial for enhancing interfacial wettability and bonding reliability. A maximum average shear strength of 186.9 MPa was obtained, a 57.6 % improvement over the conventional AgCuTi filler. The fracture mechanism underwent a notable transformation: brittle failure at mixed regions of Si 3 N 4 and the reaction layer in AgCuTi joints was replaced by ductile failure at the interface between the Cu matrix and the brazing seam in Ag-4TiH 2 joints. The Cu 4 Ti 3 -dominated micro-network offers distinct advantages by enabling controllable in-situ growth that prevents agglomeration while maintaining joint deformability through the synergy effect of the abundant retention of ductile Ag(s, s) and decent elastic modulus and yield strength increment, and regulates the interface reaction to yield a thinner Ti-N layer instead of a TiN/Ti 5 Si 3 dual-layer. These features collectively contribute to the notable mitigation of residual stress within Si 3 N 4 /Cu joints.
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JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Hongsheng Liu,Hengyue Li,Bin Huang,Yange Yang,Haibo Guo,Yan Xiao,Weiguang Yang
To enhance the proton conductivity and durability of Ce-based hybrid proton exchange membranes (PEMs), this study fabricates modified perfluorosulfonic acid (PFSA) hybrid membranes by incorporating the dual-function γ-AlOOH@Ti-supported CeO 2 composite oxide (γ-AlOOH@Ti/CeO 2 ). In addition to combining the inherent proton conductivity of γ-AlOOH with the excellent radical scavenging ability of CeO 2 , both the proton conductivity and durability of Ce-based PEMs are further improved by introducing Ti-dopant, which not only increases hydrogen vacancies on the surface of γ-AlOOH, which facilitate proton conduction, and induces electron transfer from γ-AlOOH@Ti to CeO 2 , which enhance free radical adsorption. As results shown, the proton conductivity and the fluoride release value of the resulting hybrid membrane are about 76 % higher and 35.25 % lower than those of the PFSA-CeO 2 membrane, respectively. Moreover, the performance of cells shows that, after accelerated degradation testing, the PFSA-γ-AlOOH@Ti/CeO 2 membrane exhibits the lowest peak power density decrease rate, the impedance increase rate and hydrogen crossover current density, with 11.79 %, 27.54 % and 3.04 mA cm −2 , respectively. These results suggest that compared to CeO 2 -hybrid PEMs, γ-AlOOH@Ti/CeO 2 -based hybrid PEMs exhibit higher proton conductivity and superior chemical stability, indicating the potential application of γ-AlOOH@Ti/CeO 2 -based hybrid PEMs in proton exchange membrane fuel cells.
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高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Songjian Deng,Yi Dai,Yue Situ,Defei Liu,Hong Huang
Electrocatalytic oxidation technology and dimensionally stable anodes are widely used in the field of organic dye wastewater treatment . Rational manipulation of microscopic morphology, surface chemistry, and electrode configuration on DSA is of prime importance to enhance its electrochemical performance in the electrocatalytic degradation of organic pollutants . Herein, a novel Ti/SnO 2 -Sb anode with a microsphere structure composed of nanosheet was prepared by the in-situ hydrothermal method . And this electrode was compared with a control sample prepared by the traditional thermal decomposition method in terms of microscopic morphology, chemical structure , and electrochemical performance in the degradation of methylene blue. Benefiting from the nanosheet structure, small grain size, and higher Sb 2 O 5 content, the electrode prepared by the hydrothermal method had a higher Oxygen Evolution Potential (2.09V), a smaller impedance (8.61Ω), and a larger Electrochemical Active Surface Area. And its removal rate of methylene blue reached 100% while the total organic carbon content reduced by 39.20% within 60 min, which is significantly superior to that of traditional thermal decomposition electrodes. This study highlights that the electrode prepared by single-step hydrothermal process shows more excellent catalytic performance than that by the traditional thermal decomposition process and the hydrothermal method has bright application prospects in DSA for electrocatalytic oxidation.
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