JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2025
·
IF 14.3
Kang Wang,Zexin Liu,Lin Liu,Tiantian Wang,Kun Chen,Runhua Yao,Ruiqiang Hang,Xiaohong Yao
Zinc-based materials have been extensively researched as biodegradable bone repair materials in recent years, but their low degradation rate and limited bioactivity need to be further improved. In this study, a new-type dual-sized macro-micro porous Zinc-Magnesium-β-tricalcium phosphate (DMMP Zn-Mg-β-TCP) scaffolds were designed and fabricated by vacuum heating-press sintering. The mechanical properties, degradation behaviors, in vitro biocompatibility, in vivo osteogenesis, and biological safety of the scaffolds were systematically evaluated. The results show that DMMP Zn-Mg-β-TCP has suitable mechanical properties, degradation properties, and excellent osteogenic properties. The compressive yield strength range of the scaffolds is 12.90–25.46 MPa, and the elastic modulus range is 0.31–0.44 GPa, meeting the mechanical properties required for implant materials in cancellous bone. In vitro degradation tests showed that the corrosion rate of the scaffolds ranges from 2.25 to 2.61 mm/y. Furthermore, the scaffolds exhibited excellent in vitro cell compatibility. After a 24-week animal experiment, the scaffold demonstrated excellent osteogenic capacity during bone healing, while maintaining biomechanical stability throughout its degradation process. In summary, the DMMP Zn-Mg-β-TCP has the potential to become a novel biodegradable bone implant material.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Wan-Juan Jiang,Haleema Sadia,Ding-Feng Yu,Pan-Feng Zheng,Ze-Hua Dong
Carbon fiber (CF) has been widely employed to enhance the mechanical properties of polymers owing to its superior chemical inertness , high tensile strength , and high conductivity. This study presents a surface chemistry-driven approach to enhance the corrosion resistance and mechanical performance of waterborne zinc-rich epoxy (ZRE) coatings by incorporating polydopamine (PDA)-coated carbon fibers (CF). The PDA layer, abundant in catechol and amine groups, facilitates dual interfacial bonding mechanisms—π-π stacking interactions and hydrogen bonding with the epoxy matrix . This synergistic interfacial engineering not only enhances the colloidal dispersion of CF but also results in an eightfold increase in adhesion strength and a 100 % improvement in tensile strength compared to the pristine ZRE coating. Additionally, the low-frequency impedance (|Z| at 0.01 Hz) is elevated by two orders of magnitude, and the cathodic protection duration provided by Zn is extended more than twofold relative to unmodified ZRE coating. These enhancements are attributed to two synergistic mechanisms: PDA-enhanced CF dispersion forming continuous conductive networks that facilitate electron transfer between zinc particles and the substrate, and amine-epoxy covalent bonding, constructing hierarchical barrier structures that hinder electrolyte penetration.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 30
·63013-63021
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IF 5.6
Ning Zhang,Junqi Chen,Ning Guan,Huaicheng Xiang,Ying Tang,Yuandong Qin,Liang Fang
Two novel ceramics, Li 2 Mg 2 Ga 2 Ti 3 O 12 (LMGT) and Li 2 Zn 2 Ga 2 Ti 3 O 12 (LZGT), featuring a spinel structure, were synthesized utilizing the solid-state method. Comprehensive characterization confirms that LZGT ( P 4 3 32) forms a B-site 1:3 ordered spinel, while LMGT ( Fd -3 m ) adopts a disordered spinel structure. The ceramics exhibit outstanding microwave dielectric properties, characterized by low ε r of 14.92 and 19.11, high Q×f of 120,000 and 93,800 GHz, and negative τ f of −40.21 and −32.83 ppm/°C for LMGT and LZGT, respectively. The observed ε r values significantly exceed theoretical values due to underestimated Ti 4+ polarizability along with the rattling effect of Ti 4+ and Ga 3+ . Q×f values correlate with packing fraction, lattice energy, and electrical properties. The negative τ f values stem from dominant positive τ ε and τ αm contributions. Utilizing LMGT with ultra-low loss, a dielectric resonator antenna was designed, achieving a radiation efficiency of 93.01 % and a gain of 6.12 dBi at 6.60 GHz, highlighting significant potential for C-band communication satellite applications.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2015
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IF 2.999
Xiwei Liu,Jianke Sun,Kejin Qiu,Yinghong Yang,Zhongjie Pu,Li Li,Yufeng Zheng
Zn, a promising biodegradable material , possesses excellent biocompatibility and biodegradability, however its low strength and hardness largely limit its application in biodegradable implants. The addition of alloying elements would generally be suggested as an effective method for improving the mechanical properties. In the current study, alloying with a minor amount of Ca or Sr in Zn–1.5Mg alloy, the ternary alloys were composed of the matrix Zn and precipitated phase (Mg 2 Zn 11 and CaZn 13 for Zn–1.5Mg–0.1Ca alloy, Mg 2 Zn 11 and SrZn 13 for Zn–1.5Mg–0.1Sr alloy, respectively). Besides, the grain size of ternary alloys became more homogeneous and smaller than that of Zn–1.5Mg alloy. Meanwhile, the effect of alloying elements on the mechanical properties and corrosion behavior of Zn–1.5Mg alloy were analyzed. The results showed that the ternary alloys exhibited much higher yield strength (YS), ultimate tensile strength (UTS) and elongation than those of Zn–1.5Mg alloy. The measured corrosion rates of the ternary alloys were slightly increased due to galvanic corrosion reaction. Besides, a model of the corrosion mechanism in the simulated body fluid was discussed here based on the results of the studied alloys.
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Journal of Materials Chemistry C
·
2018
·Vol. 6
·期 48
·13136-13147
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IF 5.976
Gongcheng Xing,Yuxin Feng,Min Pan,Yi Wei,Guogang Li,Peipei Dang,Sisi Liang,Maxim S. Molokeev,Ziyong Cheng,Jun Lin
Red-emitting phosphors are indispensable compounds which are used to achieve a warm white light in phosphor-converted white light emitting diodes (pc-WLEDs). However, the luminous efficiency and stability of red phosphors are still big challenges. In this work, we developed red-emitting double perovskite phosphors La2ATiO6:Bi3+,Mn4+ (A = Mg, Zn) (LAT:Bi3+,Mn4+) and discuss the relationship between the double perovskite phosphor structure and the luminescence performance in detail. According to the Rietveld refinement results for the La2Mg(1−w)ZnwTiO6:Bi3+,Mn4+ (0 ≤ w ≤ 1) (LM(1−w)ZwT:Bi3+,Mn4+) solid solution, the proposed mechanism of the spectral adjustment is ascribed to the appearance of the phase transition, which results in a lower local structural symmetry of the [LaO12] polyhedron and the variation of the crystal field environment for Mn4+. Notably, this is the first time that the influence of the local structure variation on the luminescence tuning in double perovskite structure phosphors has been revealed, and this could offer guidance for the development of new phosphor system. By designing Mg2+/Zn2+ cation substitution, the internal quantum efficiency (IQE) is remarkably enhanced beyond 20%. In addition, we succeeded in achieving a Bi3+/Mn4+ co-doped energy transfer in the double perovskite structure phosphors. Owing to the Bi3+ → Mn4+ energy transfer in LAT, the red emission of the Mn4+ ions could be dramatically enhanced. The energy transfer efficiency of LAT:Bi3+,Mn4+ eventually exceeded 90%. The IQE and the thermal stability were all enhanced by around 30% compared to the non-co-doped samples, respectively. These results indicate that the Bi3+ → Mn4+ energy transfer strategy could play a pivotal role in the development of highly efficient red-emitting phosphors. The performance of the fabricated pc-WLEDs devices indicates that LAT:Bi3+,Mn4+ could be a promising red phosphor for near ultraviolet (n-UV) based warm pc-WLEDs.
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高影响因子
Electrocatalysis
·
2019
·Vol. 10
·期 3
·277-286
·
IF 2.311
Chen Xiaowen,Wang Si,Wang Yan,Yang Zheng,Liu Sa,Gao Jingxia,Su Ziqian,Zhu Ping,Zhao Xinsheng,Wang Guoxiang
One-dimension (1D) heteroatom-doped mesoporous carbon is a promising alternative catalyst for oxygen reduction reaction (ORR). This work reported a hybrid ORR electrocatalyst composed of Co/CoO x nanoparticles embedded in N-doped mesoporous carbon layer coated on carbon nanotubes (CNTs@Co–N–C). Owing to the 1D mesoporous architecture with abundant active sites, CNTs@Co–N–C hybrid showed superior ORR activity, high selectivity, and long-term durability. Moreover, as cathode catalyst for primary Zn–air battery, CNTs@Co–N–C also showed excellent performance comparable to Pt/C. Thus, this study can offer a good idea for preparing noble-metal-free electrocatalysts for energy applications.
A 1D hybrid electrocatalyst composed of Co/CoO x nanoparticles embedded in N-doped mesoporous carbon layer coated on carbon nanotubes (CNTs@Co–N–C) was prepared for efficient ORR.
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高影响因子
Fuel Cells
·
2017
·Vol. 17
·期 5
·723-729
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IF 1.706
Y. Yi,J. Huo,W. Wang
Molecular simulation method was firstly used for analyzing the energy of aluminum alloy systems alloyed by Mg, Ga, Zn and Mn. Based on the analyses, Al-Mg, Al-Ga, Al-Zn, Al-Mn alloys were metallurgically prepared. The structures, electrochemical activities and utilization ratios were characterized by X-ray diffraction patterns (XRD), anodic polarization measurement and galvanostatic discharge. The calculated energies of the aluminum alloy systems increase in the following order: Al< Al-Mn < Al-Mg < Al-Zn < Al-Ga. The absolute values of the open circuit potentials of the alloys measured in alkaline solution rank in the following orders: φ Al-Ga alloy > φ Al-Zn alloy > φ Al-Mg alloy > φ Al-Mn alloy and the order is consistent with the calculated energies. The results indicate that molecular simulation based on the first-principles is a useful method in the alloying design and thermodynamic performance prediction. Alloy additives Zn and Ga effectively change the open circuit potential of metal aluminum to a more negative potential. In addition, alloy additive Zn increases the charge transfer resistance of Al→Al 3+ , which decreases the discharge current density. Alloy additive Mg diminishes the grain size of the alloy and notably enhances the discharge current density. Alloy additive Mn improves the utilization ratio remarkably when discharging in alkaline solution.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Chaocheng Liu,Xucai Kan,Feng Hu,Xiansong Liu,Shuangjiu Feng,Jiyu Hu,Wei Wang,Khalid Mehmood Ur Rehman,Mudssir Shezad,Cong Zhang,Haohao Li,Shengqiang Zhou,Qiuyue Wu
Herein, we have systematically illustrated the specific impact of Ce-Zn co-substituted M-type strontium hexaferrites on its microstructure and magnetic properties . An evident phase pattern change process and performance improvement are observed from a series of systematic measurements. The results of X-ray diffraction show that the single phase can be obtained when x = 0.00–0.30, the other unexpected diffraction peaks of hematite ( α -Fe 2 O 3 ) will appear in the patterns as x > 0.3. Scanning electron microscopy exhibits that all samples formed the uniform plane hexagonal structures with different substitution contents. FT-IR spectra verify the confirmation that M-type hexagonal structure has been formed thoroughly. M ( T ) curve displays the ferrimagnetic behavior of temperature dependent magnetization. And vibrating sample magnetometer indicates both M s and H c can be improved significantly, indicating an excellent performance in novel recording devices.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2018
·
IF 6.14
Kaiyue Li,Dong Guo,Jianyu Kang,Bo Wei,Xitian Zhang,Yujin Chen
Larger-scale usage of the clean energies requires advanced energy storage and conversion techniques. Overall water splitting and zinc air systems are promising energy conversion and storage means, but need high-performance, low-cost, and highly stable bifunctional electrocatalysts to hydrogen evolution/oxygen evolution reactions (HER/OER) and OER/oxygen reduction reactions (ORR), respectively. Herein we develop a facile method to fabricate CoMn double hydroxide (DH) hollow spheres as high-performance trifunctional electrocatalysts for overall water splitting and zinc-air battery. The outmost surfaces of the CoMn DH hollow spheres are composed of ultrathin nanosheets with a thickness of approximately 2.5 nm. Owing to the hollow and ultrathin features, CoMn DH hollow spheres exhibit excellent activities and robust stabilities toward HER, OER, and ORR. The overall water electrolyzer assembled with the CoMn DH hollow spheres can drive a current density of 10 mA cm–2 at an overpotential of merely 420 mV in 1.0 M KOH, among the best reported metal oxides and hydroxides. Remarkably, each all-solid-state Zn air battery with the optimized CoMn DH hollow spheres air-cathode exhibited good cycling stability. Furthermore, two all-solid-state Zn air batteries in series can power 55 red LED and the two-electrode electrolyzer catalyzed by the optimized CoMn DH hollow spheres with excellent operation stabilities.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Liu Yang,Jiaqi Nie,Jiqing Zhang,Haihui Wu,Xiaohui Guan,Song Han,Liwen Wang,Penggang Yin,Tao Zou,Hongfan Huang
Traditional manganese oxide cathodes for aqueous zinc-ion batteries usually suffer from sluggish kinetics and irreversible structure degradation, resulting in poor electrochemical activity and stability. The proposal of Zn 4 SO 4 ·(OH) 6 · x H 2 O-assisted deposition-dissolution reaction model promotes the progress of non‑manganese oxide cathodes in certain systems, but the newly proposed model is of limited applications. Based on the model, exploiting high-quality cathodes and feasible performance regulation strategies are essential for the advancement of zinc batteries. Herein, a feasible method is proposed to realize in-situ substitution of Co, In, Zn, and V heteroatoms in Fe 3 O 4 with N-doped carbon coated via the assistance of a Fe-based metal organic framework precursor. The in-situ adulterated metal heteroatoms are proved to have distinct effects on electron structure regulation, triggering more active electron transfer, thus enhancing the efficient interactions with charge carriers. Moreover, the polydopamine derived N-doped carbon shell and unique hollow bipyramidal hexagonal prism structure provide abundant active sites and guarantee sufficient space for electrolyte transport. The hollow structures could homogenize flux distribution and electric field distribution, facilitating high-efficiency and stable energy storage. Consequently, the electrochemical activity, kinetics, and stability could be remarkably optimized. In addition, electrochemical performance improvement mechanisms triggered by in-situ multiple heteroatoms substitution and structure design are revealed by systematic characterizations, computations, and simulations. This study proposes a feasible electron structure regulation strategy triggered by in-situ multiple heteroatoms substitution for non-MnO 2 cathode design, which is of great importance for the development of zinc batteries.
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Journal of the Taiwan Institute of Chemical Engineers
·
2026
·
IF 6.9
Xiaolei Shi,Bailing Fan,Zilong Chen,Bing Wang,Xiangqin Yang,Jingjing Hua,Cheng Yang,Yajie Wang
Background As common toxic heavy metals, the combined pollution of Pb(II) and Zn(II) is difficult to remove simultaneously due to the competition between ions, so it is necessary to develop an efficient synergistic treatment strategy. Method The study involved synthesizing functional biochar by co-pyrolyzing DGs with RM, followed by a comprehensive evaluation of its Pb(II)/Zn(II) adsorption capabilities in aqueous environments. Significant findings Multidimensional characterization results confirmed that DGs and RM were well combined, where red mud-derived functional material, such as oxygen-containing functional groups and metallic oxides, successfully loaded onto the distillers' grains-based biochar. Further, the surface properties were also remarkably modified, such as the pore structure and specific surface area were improved, the alkalinity was increased, and magnetic properties were introduced. These modified properties were identified as crucial factors governing Pb(II)/Zn(II) adsorption efficiency. The red mud-modified biochar (RM-DC) exhibited significantly enhanced adsorption capacities for Pb(II) (294.335 mg g -1 ) and Zn(II) (41.456 mg g -1 ) at ambient temperature, representing notable improvements over the pristine biochar (185.038 and 25.038 mg g -1 , respectively). The conformity to both pseudo-second-order kinetics and the Langmuir-Freundlich isotherm model suggests that the adsorption process is characterized by chemical adsorption and multimolecular layer formation. The adsorption of both Pb(II) and Zn(II) on RM-DC was determined to be endothermic and spontaneous. Pb(II) immobilization proceeded through combined surface precipitation, complexation, ion exchange, and electrostatic attraction, while Zn(II) removal was predominantly achieved via ion exchange and electrostatic interactions. RM-DC exhibited promising adsorption capability in treating authentic acid mine drainage, highlighting its potential for practical wastewater purification. This study explores a new way to reuse the industrial bulk solid wastes and provides a highly efficient strategy for heavy metal elimination.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zilin Song,Qiang Zhang,Zixun Wang,Haonan Zhang,Yunchuan Luo,Zhongzhu Wang,Peihong Wang,Wen He,Yan Zhao
The integration of pressure-sensing materials into wearable protection systems has great potential for intelligent safety monitoring. While modern cycling helmets are effective at dissipating impact energy, they still lack real-time sensing and localization capabilities, hindering timely injury assessment. In this study, a humidity-induced phase separation electrospinning strategy (HIPS) is developed to produce an ultralight three-dimensional sponge-structured triboelectric sensor (3D-STS), in which polyacrylonitrile (PAN)/zinc-based metal-organic framework (Zn-MOF) composite is used as the core sensing material. Owing to its hierarchical 3D structure and well-dispersed Zn-MOFs, the 3D-STS exhibits improved mechanoelectric conversion performance, achieving a sensitivity up to 3.83 V/kPa in the low-pressure range 0.02–0.7 kPa. Furthermore, the as-prepared 3D-STS withstands impacts at up to 2 m/s while maintaining over 96% of its electrical output after 10,000 compression cycles, indicating its excellent mechanical durability. When sixteen 3D-STS units were integrated into a helmet to form a 16-channel sensing system, the system enabled real-time multisite impact monitoring through a LabVIEW interface and achieved over 95% accuracy in tests. This research overcomes the limitations of conventional helmet sensors in real-time pressure detection and opens new possibilities for smart, self-responsive protection systems.
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高影响因子
危险品化学品经营许可证（带存储）