Materials
·
2026
·Vol. 19
·期 2
·441
·
IF 3.2
Zewen Li,Hao Chen,Liyong Chen,Jianbo Zhang,Fan Zhang,Xiaolong Xie
HighlightsWhat are the main findings?Y doping reduces WC/Co interfacial energy and enhances bonding strength. Y-W orbital hybridization forms strong covalent bonds at the atomic interface.Material achieves dual improvement: Hardness (1454 HV) and toughness (9.84 MPa·m1/2).Optimal 0.5 wt.% Y refines grains and uniformly distributes the Co binder phase. Wear resistance is significantly improved, with the lowest wear rate at 0.5 wt.% Y.What are the implications of the main findings?Provides an atomic-scale mechanism for rare earth-enhanced cemented carbides and offers a design strategy for co-optimizing hardness and toughness in composites;Validates the integration of first-principles calculations with experimental validation;Identifies an optimal Y doping threshold for superior comprehensive properties.This study aims to clarify the optimization mechanism of yttrium (Y) doping on the interfacial bonding and macroscopic properties of WC/Co cemented carbides, with the goal of achieving materials that combine high hardness, high toughness, and excellent wear resistance through interfacial regulation. Combining first-principles calculations and experimental verification, the interfacial energy, density of states, and charge density of WC/Co and WC/CoY interfaces were systematically investigated. Three alloys (WC-10Co, WC-10Co-0.5Y, and WC-10Co-1Y) were prepared, and the effects of Y addition were quantitatively evaluated through microstructural characterization, mechanical testing, and tribological experiments. The calculation results indicate that Y doping reduces interfacial energy, enhances interfacial bonding, and increases surface energy, which contributes to improved toughness. At the atomic scale, the orbital hybridization between Y and W promotes the formation of strong covalent bonds at the interface, thereby enhancing interfacial bonding strength. The experimental results show that the introduction of Y significantly improves the overall performance of the material, with the alloy containing 0.5 wt.% Y exhibiting the best performance. Its Vickers hardness reaches (1454 ± 1.3) HV, fracture toughness is (9.84 ± 0.15) MPa·m1/2, and the wear rate is as low as 0.794 × 10−5mm3·N−1·m−1.
✓ 已验证
DOI
PubMed
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2026
·
IF 11.8
Binnan Shi,Zhuangzhuang Ru,Dehao Jia,Yu Du,Lihua Hu,Shuyuan Liu,Shan Wang,Hongying Jia,Qin Wei
An ultrasensitive electrochemiluminescence (ECL) biosensor was developed for the detection of the acute myocardial infarction (AMI) biomarker miRNA-499 by synergistically integrating an iridium-metallized covalent organic framework (Ir@TpBpy) with enzyme-assisted Y-shaped DNA amplification. The Ir@TpBpy COF was synthesized via post-metallization of a bipyridine-rich TpBpy framework with Ir(III) complexes. This design significantly enhances the ECL performance not only through material loading but also via a synergistic optimization strategy: (1) the conjugated framework constructs continuous charge transport pathways to accelerate electron transfer; and (2) the porous architecture induces a guest confinement effect that locally enriches the coreactant triethylamine (TEA), facilitating radical kinetics. Concurrently, a Y-shaped DNA amplification strategy, driven by Klenow fragment and Nt. Bbv Cl enzymes, facilitated exponential signal enhancement via cascade strand displacement reactions. The generated output strands triggered the displacement of pre-immobilized WO 3 /CuO quenchers from the electrode surface, thereby restoring the luminescence of Ir@TpBpy and achieving a sensitive “signal-on” readout. Benefiting from this dual-amplification approach, the biosensor achieved an exceptionally low limit of detection (LOD) of 0.81 aM across a linear range from 1 aM to 1 nM in human serum and cellular lysates. Clinical validation using Bland-Altman analysis demonstrated 95% agreement with qRT-PCR results, confirming that this synergy of coordination modulation and guest confinement offers a robust and precise platform for early AMI diagnosis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Advanced Ceramics
·
2022
·Vol. 11
·期 11
·1801-1814
·
IF 11.534
Cheng Fuhao,Zhang Fengnian,Liu Yufeng,Guo Meng,Cheng Chufei,Hou Jiadong,Miao Yang,Gao Feng,Wang Xiaomin
Environmental barrier coatings (EBCs) with excellent chemical resistance and good high-temperature stability are of great significance for their applications in next-generation turbine engines. In this work, a new type of high-entropy fluorite-structured oxide (Ce 0.2 Hf 0.2 Y 0.2 Pr 0.2 Gd 0.2 )O 2− δ (HEFO-1) with different Ti 4+ contents were successfully synthesized. Minor addition of Ti 4+ could be dissolved into a high-entropy lattice to maintain the structure stable, effectively reducing the phase formation temperature and promoting the shrinkage of bulk samples. Heat treatment experiments showed that all the samples remained a single phase after annealing at 1200–1600 °C for 6 h. In addition, high-entropy (Ce 0.2 Hf 0.2 Y 0.2 Pr 0.2 Gd 0.2 Ti 0.2 x )O 2− δ demonstrated great resistance to calcium—magnesium—alumina—silicate (CMAS) thermochemical corrosion. When the content of Ti was increased to x = 0.5, the average thickness of the reaction layer was about 10.5 after being corroded at 1300 °C for 10 h. This study reveals that high-entropy (Ce 0.2 Hf 0.2 Y 0.2 Pr 0.2 Gd 0.2 Ti 0.2 x )O 2− δ is expected to be a candidate for the next-generation EBC materials with graceful resistance to CMAS corrosion.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2022
·
IF 4.119
Chunying Li,Fang Nie,Changyin Feng,Mengfei Tian,Meiting Yu,Chunjian Zhao,Yujie Fu
A creative dual-template molecularly imprinted polymer (Fe 3 O 4 @MCM-41-MIPs) with good magnetic properties and specific recognition of echinacoside and acteoside was prepared by surface imprinting. Echinacoside and acteoside served as dual templates, 4-vinylpyridine (4-VP) was used as a functional monomer , the cross-linker was ethylene glycol dimethacrylate (EGDMA), and the selected initiator was azobisisobutyronitrile (AIBN). The prepared Fe 3 O 4 @MCM-41-MIPs were applied to the selective separation and enrichment of echinacoside and acteoside from Cistanche deserticola Y. C. Ma ( C. deserticola ). The resulting Fe 3 O 4 @MCM-41-MIPs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), laser particle size scanning and vibration sample magnetometry (VSM). The results of the isotherm adsorption experiment showed that the maximum adsorption capacities of Fe 3 O 4 @MCM-41-MIPs for echinacoside and acteoside were 6.02 and 1.63 mg·g -1 , respectively, at 298 K. The pseudo-second-order reaction mechanism showed that the equilibrium adsorption capacities of Fe 3 O 4 @MCM-41-MIPs for echinacoside and acteoside were 4.81 and 0.93 mg·g -1 , respectively. The characterization of Fe 3 O 4 @MCM-41-MIPs showed that the imprinted layer with dual-template molecules was wrapped on the outside of the carrier, and the obtained Fe 3 O 4 @MCM-41-MIPs showed good saturation magnetization , desirable capacity for echinacoside and acteoside adsorption, and satisfactory reuse (echinacoside and acteoside maintained relative adsorption rates of 97.5% and 95.8% after five cycles). After separation, the purities of echinacoside and acteoside were 33.50% and 27.00%, respectively. In addition, in the selective adsorption experiment, the synthesized Fe 3 O 4 @MCM-41-MIPs showed better selectivity for echinacoside and acteoside than their structural analogs. Therefore, this method proved to be sustainable, rapid and highly efficient for the separation and enrichment of echinacoside and acteoside.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Ruiqi Yan,Zhaofu Qiu,Xiaotong Bian,Ji Yang,Shuguang Lyu,Anhui Zhou
As a toxic element, antimony (Sb) often exists in contaminated water in the form of Sb(III) and Sb(V), and poses a threat to the environment and human health. To remove Sb from water efficiently, the novel cerium hydroxide loaded Y-tape molecular sieve adsorbent (NaY@Ce) was successfully prepared by co-precipitation method. Adsorption capacity of the adsorbent showed up the increasing trend with the increase of cerium species. With 0.4 % loading of cerium trichloride, the maximum adsorption capacity of Sb(III) and Sb(V) on NaY@Ce was 24.65 mg/g and 7.28 mg/g at pH = 7.0, respectively. The results of batch experiments showed that the Langmuir isotherm well described the Sb(III) adsorption experiments, while Sb(V) better fitted the Freundlich model. Both adsorption behaviors fitted the pseudo-second-order kinetic model. The adsorbent exhibited excellent Sb removal performance in the wide range of pH = 2–10 and co-existing anions such as Cl − , NO 3 − , HCO 3 − and SO 4 2- almost have no effect on the adsorption process. And there was almost no release of Ce at pH＞2. The SEM, EDS, XRD, FTIR and XPS analysis confirmed the successful loading of Ce, and explained the possible mechanism of Sb on the adsorbent. Abundant hydroxyl groups and the presence of Ce(Ⅳ) were the basis of adsorption. The adsorption mechanisms for antimony included partial Sb(III) oxidized to Sb(V) and simultaneously adsorbed on NaY@Ce, formed Ce–O–Sb inner-sphere surface complexes between metal hydroxyl groups and antimony and electrostatic attraction. The above results confirmed that NaY@Ce can be used as a promising adsorbent to efficiently remove Sb from aqueous solution.
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2019
·
IF 5.026
Ting Su,Lipeng Wu,Gancheng Zuo,Xihao Pan,Mingyang Shi,Cheng Zhang,Xiaoliang Qi,Wei Dong
Hydrogel adsorbents have attracted considerable attention due to their sludge minimization, good water permeability and renewable performance. Here, a promising strategy for the one-step preparation of pullulan/polydopamine hybird hydrogels (PPGels) was presented. Dumbbell-shaped cross-linker neopentyl glycol diglycidyl ether (NGDE, 2 arms) and Y-shaped cross-linker trimethylolpropane triglycidyl ether (TTE, 3 arms) were selected to study the relationship between cross-linker structure and hydrogel performances. The NGDE possessing less molecular repulsive force and higher reactivity demonstrated more effective cross-linking with the pullulan, which leaded to a decrease in pore size of the hydrogel. Meanwhile, the introduction of polydopamine significantly enhanced the adsorption ability and gave the resulting hybrid gel the specific selectivity toward cationic dyes (96 mg/g for crystal violet, 25.8 mg/g for methylene blue and barely not adsorption for azophloxine). Our data suggested that the electrostatic interaction played a vital role in the dye adsorption process, and the adsorption data could be explained by pseudo-second-order model and Langmuir isotherm model. Furthermore, the obtained PPGel could be easily separated after adsorption. This study describes the relationship between cross-linker structure and properties of pullulan/polydopamine hybrid gels, which provides a new strategy to create polysaccharide-based adsorbents for wastewater remediation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2019
·
IF 5.026
Ying Li,Yijie Han,Wei Li,Yuxin Li,Deyun Zhang,Yeqing Lan
A novel magnetic sulfur-doped Fe–Cu–Y trimetal oxide (MST) nanomaterial was successfully synthesized by a chemical coprecipitation method to remove As(III) via simultaneous oxidation and adsorption and then characterized by BET, VSM, FESEM, XPS, and FTIR techniques. The effect of solution initial pH on the adsorption of As(III), and the adsorption kinetics and isotherm were investigated in detail. The results indicated that the MST nanoparticles exhibited an excellent performance for As(III) removal in a pH range of 7–10 and were easily separated from aqueous solution with a magnet. The maximum removal capability for As(III) reached 202.0 mg/g at pH 7.0. The adsorption of As(III) was well fitted by the pseudo-second-order kinetic model and Langmuir isotherm model, respectively. The investigation of mechanism revealed that As(III) could be oxidized to As(V) by O 2 − and OH free radicals, generated via the dissolved O 2 obtaining an electron from Cu(I) on the surface of the adsorbent and Fenton/Fenton-like reaction, respectively. Meanwhile, the produced As(V) was adsorbed onto the surface of the nanoparticles through the electrostatic attraction or diffusion. The adsorbed As(V) further interacted with –OH groups via ion exchange or with Y(III) on the surface of the adsorbent to form a precipitate. Therefore, the MST nanoparticles are promising for the removal of arsenic from water.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jun-Wei Huang,Xiao-Feng Dong,Xiao-An Lv,Xiao-Na Ren,Chang-Chun Ge
The Si 3 N 4 ceramics with ternary ZrN–AlN–Re 2 O 3 (Re=Yb, Y, Nd, Ce, La) and ZrN–AlN system as sintering additives were prepared by hot-pressed sintering with vacuum environment at 1750°C-30min–30MPa. Subsequently, the effect of the ternary additives system with 2 wt% Re 2 O 3 on phase transformation, grain boundary phases, microstructure, and mechanical properties of the Si 3 N 4 ceramics were investigated firstly. All samples achieved the high β-Si 3 N 4 phases transformation (≥98.86%), while the grain boundary phases Re x Zr 1-x O (4-x)/2 and Yb 2 Si 2 O 7 were detected in the sintered Si 3 N 4 ceramics with Re 2 O 3 additives. Additionally, compared with Si 3 N 4 ceramic not contain Re 2 O 3 additives, the Si 3 N 4 ceramics added Re 2 O 3 additives presented the textured microstructure with more elongated rodlike β-Si 3 N 4 grains based on the XRD and SEM results. Consequently, the sample S-Ce with added CeO 2 additive shows the highest relative density of 99.85% and optimal fracture toughness of 8.75 ± 0.36 MPa m 1/2 . The sample S–Nd with added Nd 2 O 3 additive presented a highest bending strength of 1061.78 ± 41.76 MPa. Sample S–Yb with added Yb 2 O 3 additive presented the maximum Vickers hardness of 16.35 ± 0.07 GPa. The results of this study can provide a helpful reference for the preparation of high-performance Si 3 N 4 ceramics.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Kang Lei,Haiming Huang,Xu Jia Liu,Weiliang Wang,Kai Guo,Ren Kui Zheng,Han Li
The eco-friendly thermoelectric material SnTe has recently gained immense attention due to its excellent thermoelectric properties and potential. However, its thermoelectric properties are limited by the inherent high carrier concentration (low Seebeck coefficient) and high thermal conductivity. Herein, we further introduce rare-earth element Y on top of the conventional Cu alloying to more effectively modulate its microstructure and thermal transport properties. The experimental results reveal that Y doping gives rise to band convergence, endowing Sn1–xYxTe-5%Cu2Te with an increased power factor of ∼22.14 μW cm–1 K–2. Meanwhile, the introduced abundant Y/Y2Te3 multiscale composite nanostructures in the matrix greatly enhance phonon scattering, resulting in an ultra-low lattice thermal conductivity of ∼0.43 W m–1 K–1. Consequently, these combined effects resulted in a peak ZT value of 1.27 at 823 K in Sn0.97Y0.03Te-5%Cu2Te. An enhancement of nearly 217% is achieved compared to pristine SnTe, which greatly improves the thermoelectric properties of SnTe-based materials.
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2023
·Vol. 16
·期 14
·e202300661
·
IF 8.4
Lulu Jiang,Truls Norby,Donglin Han
Graphical At the boundary : SrZr 0.9 Y 0.1 O 3− δ has high proton transport number in wet oxygen, moderate proton conductivity and high chemical stability. Its grain boundary has lower proton transport number than that of bulk, possibly due to decreased proton mobility and tunnelling of electron holes across the grain boundary. Proton conducting acceptor-doped SrZrO 3 has a history as long as that of BaZrO 3 , but has attracted less interest. Inspired by its higher transport number of ionic conduction in wet oxygen revealed by our recent work, we here explore further aspects of doped SrZrO 3 as electrolyte in proton ceramic electrochemical cells. In-situ high temperature XRD (HT-XRD) analysis of SrZr 0.9 Y 0.1 O 3− δ (SZY10) indicated an anisotropic chemical expansion of hydration, stronger along the b than the a direction, and negative in the c direction. A systematic electromotive force (EMF) and impedance spectroscopy study as a function of and allowed determination of partial conductivities of electron holes and ions (mainly protons) in bulk (grain interior) and grain boundaries. Enthalpies and preexponentials were determined and interpreted for bulk and grain boundary partial conductivities based on defect chemistry and a brick layer model. The hole conductivity in bulk is modest and ensures high ionic transport numbers in oxidizing atmospheres, while grain boundaries exhibit lower ionic transport numbers from a relatively higher hole conductivity attributed primarily to tunnelling past the deepest part of the space charge region. Y-doped SrZrO 3 (SZY) materials exhibit lower proton conductivities but excel over Y-doped BaZrO 3 (BZY) in terms of thermal expansion compatibility with electrode materials and higher ionic transport numbers in oxidizing atmospheres and may hence be candidates for functional layers between BZY-based electrolytes and positrodes in proton ceramic electrochemical cells.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Shi Ye,Jia-Yi Sun,Yu-Hong Han,Ya-Yun Zhou,Qin-Yuan Zhang
CsPbX3 (X = Cl, Br, I) perovskite quantum dots (QDs) have emerged as competitive candidate luminescent materials in the photoelectric fields due to their superior luminescence properties. However, the major drawback such as poor resistance to temperature, moisture, and irradiation of light, especially for the red QDs with I–, hinders their practical applications. Herein, we synthesized Mn2+-doped CsPbCl3 embedded in the cage of zeolite-Y as a new orange-red phosphor for the white light-emitting diode (WLED). The composites have significantly improved resistance to both elevated temperature and water over the bare Mn2+-doped QDs. The former exhibits little degradation whereas the latter shows apparent decline upon the irradiation of lights in the orange LED devices, which are fabricated by employing each material as a color-conversion phosphor coated on a 365 nm UV chip. A WLED is also achieved with a 365 nm UV chip coated with a CsPb(Cl0.5,Br0.5)3–Y blue phosphor and a CsPb0.75Mn0.25Cl3–Y orange phosphor. The device possesses a Commission Internationale de l’Éclairage coordinate of (0.34, 0.36), a correlated color temperature of 5336 K and a color rendering index of 81.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2017
·Vol. 19
·期 6
·1-15
·
IF 2.02
Qin Xin,Shi Penghui,Liu Haolin,Fan Jinchen,Min Yulin,Xu Qunjie,Yao Weifeng
Metal nanoparticles have been combined with magnet metal–organic frameworks (MOFs) to afford new materials that demonstrate an efficient catalytic degradation, high stability, and excellent reusability in areas of catalysis because of their exceptionally high surface areas and structural diversity. Magnetic M
x
O
y
@N-C (M = Fe, Co, Mn) nanocrystals were formed on nitrogen-doped carbon surface by using 8-hydroxyquinoline as a C/N precursor. The Co@N-C, MnO@N-C, and Fe/Fe 2 O 3 @N-C catalysts were characterized by X-ray diffraction (XRD), Raman, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), N 2 adsorption/desorption, and X-ray photoelectron spectroscopy (XPS). The catalytic performances of catalysts were thoroughly investigated in the oxidation of aniline solution based on sulfate radicals (SO 4
−. ) toward Fenton-like reaction. Magnetic M
x
O
y
@N-C exhibits an unexpectedly high catalytic activity in the degradation of aniline in water. A high magnetic M
x
O
y
@N-C catalytic activity was observed after the evaluation by aniline degradation in water. Aniline degradation was found to follow the first-order kinetics, and as a result, various metals significantly affected the structures and performances of the catalysts, and their catalytic activity followed the order of Co > Mn > Fe. The nanoparticles displayed good magnetic separation under the magnetic field.
ᅟ
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）