METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
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2022
·Vol. 53
·期 1
·617-626
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IF 2.872
Fu Yingzheng,Zhang Zhimin,Lu Xuchen,Pan Binfeng,Zhang Lipeng
A new approach that was designed to prepare Mg–Nd binary alloys via molten-salt-mediated magnesiothermic reduction by using Nd 2 O 3 and Mg metal as raw materials was presented. The overall approach was based on a chemical pathway that synergistically integrated a series of simple steps to produce Mg–Nd alloys that could meet the requirement of Nd content in commercial Nd-containing magnesium alloys. The key steps included preparation of NdCl 3 -containing molten salt, the reduction of NdCl 3 by Mg in molten salt, and the removal of MgCl 2 from molten salt. The results showed that this approach could indeed prepare Mg–(6 to 18) weight percent Nd binary alloys, and the remaining molten salt could be recycled after being treated with NdF 3 . When other parameters were fixed, the Nd content in alloy could be adjusted only by adjusting the concentration of NdCl 3 and MgCl 2 in molten salt. Besides, a decrease in temperature or an increase in the mass ratio of molten salt to Mg could further increase the Nd content in alloy when other conditions were fixed.
研究领域:
材料科学
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冶金工程
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高影响因子
Journal of Materials Chemistry C
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2025
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IF 5.1
Chenrun Liu,Ziqi Wu,Peisheng Nong,Qiuting Cai,Xingliang Dai,Bobo Li,Haiping He,Wang Zhang,Mingxia Qiu
Perovskite light-emitting diodes (PeLEDs) have significant potential for display and lighting applications. However, the intrinsic issues such as material stability, efficiency limitation, spectral purity and color gamut challenges have hindered the development process. In this work, the efficient blue light PeLEDs were obtained through multiple modifications of doping strategy and surface passivation. Incorporating NdCl3 into CsPbBr3 perovskite nanocrystals (PeNCs) causes lattice contraction and improves crystallization quality, thereby increasing the photoluminescence quantum yield (PLQY) and reducing non-radiative recombination. Further homogeneous passivation with didodecyl dimethylammonium chloride (DDAC) can effectively fill the halogen vacancies on the surface of PeNCs, thus to reduce surface defects. Ultimately, the PeLEDs achieved a highest external quantum efficiency (EQE) of 15.74% at the emission wavelength of 478 nm. This study can provide important insights into the multi-component regulation of high-performance blue light PeLEDs and build the foundation for their practical application in full-color display.
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Sustainable Chemistry and Pharmacy
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2025
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IF 5.8
Ting Zhang,Danni Ma,Jiaxing Gong,Bolun Sun,Fuman Cai
Rare earth elements are essential components in renewable energy technologies and advanced functional materials. Despite their critical importance, they are typically present in low concentrations and are in increasingly high demand. Current mining and refining processes are energy intensive and cause significant environmental pollution. Therefore, there is an urgent need for eco-friendly, rapid, and effective analytical methods for their exploration. Traditional detection techniques are often costly, time-consuming, and non-portable. There remains a critical gap in the availability of rapid, sensitive, and economical sensors for rare earth element detection. In this study, we introduce a novel portable electrochemical detection system. This system utilizes a recombinant plasmid constructed using a codon-optimized gene to heterologously express a high-affinity protein that binds rare-earth ions. It integrates a graphene oxide-coated screen-printed electrode with an electrochemical workstation for the detection of rare-earth ions. Given that Yb has widespread applications among rare-earth elements, we selected Yb 3+ for detection to validate the sensor's performance. The developed electrochemical biosensor exhibits a detection limit of 1.617 μM and demonstrates linear response across a concentration range of 10–90 μM (R 2 = 0.98). This rare-earth ion electrochemical sensor offers multiple advantages, including high sensitivity, a broad detection range, low cost, ease of use, portability, and potential for field deployment. The materials employed are environmentally friendly, aligning with green production requirements. The proposed method holds promise for practical applications in rare earth mineral exploration.
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Journal of Materials Chemistry B
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2026
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IF 5.7
Hao Wang,Jiaxin Wang,Rui Wang,Liang Zhou
Functional 1,8-naphthalimide derivatives are rapidly developing in the field of anticancer research. However, the unpredictable side effects of 1,8-naphthalimide derivatives limit their transition from clinical trials to clinical drugs. To low down the overall cytotoxicity of 1,8-naphthalimide derivatives after coordination with metals, we have synthesized and characterized three new rare earth naphthalene dicarboxylate complexes with the general molecular formula of [Ln(TTA)3NI-Phen], where Ln=Er, Nd, Yb, respectively. In vitro antitumor screening revealed that all three complexes exhibit better inhibitory activities against A549 and H1299 cancer cell lines compared with the commercial anticancer drug cisplatin. Especially, Er(TTA)3NI-Phen exhibited specific cytotoxicity to H1299 cancer cells in micromole magnitude and lower toxicity to normal human cells Beas-2b. Interestingly, Er(TTA)3NI-Phen triggers lung cancer cells apoptosis via a mitochondrial dysfunction pathway, which is caused by dysfunction of mitochondria and cell cycle arrest. Most importantly, Er(TTA)3NI-Phen demonstrates an inhibition rate of up to 84% against H1299 tumors.
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PubMed
高影响因子
CORROSION SCIENCE
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2026
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IF 10.3
Chengyu Wang,Ming Cheng,Haofeng Luo,Tao Jiang,Wentao Zhou,Yafei Wang
Molten salts are widely used in high-temperature nuclear systems, yet their interactions with structural alloys, particularly under the influence of fission product species, are still not fully understood. In this study, the corrosion behaviors of Fe-based 316L stainless steel (316L SS) and Ni-based Inconel 600 alloy were investigated in LiCl-KCl eutectic molten salt at 500 °C, under the influences of thermodynamically active lanthanide and less-active lanthanide/non-lanthanide fission product species. The results reveal that both active and less-active lanthanide species enhance the corrosion of alloys in molten salt, whereas less-active non-lanthanide barely affect the alloy’s corrosion as thermodynamically expected. The unexpected corrosion enhancement caused by less-active lanthanide species (Ce 3 + , La 3+ , Nd 3+ , Sm 3+ , Pr 3+ , Gd 3+ , and Y 3+ ) is attributed to the formation of lanthanide oxychlorides (LnOCl, Ln represents less-active lanthanide species), driven by trace oxygen present in Ar atmosphere. Furthermore, the 316L SS was found to exhibit better corrosion resistance than Inconel 600 alloy in LiCl-KCl molten salt containing fission products, despite Ni-based alloys being widely regarded as more corrosion-resistant than Fe-based alloys in molten salt environments. This study systematically investigates, for the first time, the effects of fission products on both Fe-based and Ni-based alloys in molten salt, providing a comprehensive understanding of the behavior of structural alloys for molten salt applications in the nuclear industry.
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MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Lingqi Shen,Yu Wang,Bincheng Gong,Zuguang Li,Guohua Zhu
In this work, we synthesized a series of magnetic deep eutectic solvents (MDESs) with lanthanide metal chlorides as paramagnetic metal centers and developed a reversed-phase dispersive liquid–liquid microextraction method (DLLME) based on the in-situ dispersion of MDESs for the extraction and preconcentration of triazole fungicides (TFs) from bean samples. Different MDESs were synthesized by combining quaternary ammonium salts, short-chain carboxylic acids, and lanthanide metal chlorides. The dissolution of short-chain carboxylic acids in n-hexane led to the in-situ dispersion of MDESs to replace the toxic dispersant of traditional DLLME species and shorten extraction time. Cobalt powder was added to encapsulate MDESs to enhance the magnetic properties after the extraction and achieve the purpose of easy phase separation. Notably, the highest extraction efficiency of TFs was observed in the MDES formed by tetrabutylammonium bromide, propionic acid, and gadolinium chloride in a ratio of 1:10:0.06. We optimized various parameters that affected the extraction efficiency of the method, including volume of MDES, extraction time, amount of cobalt powder, and volume of elution solvent. Under the optimal conditions, the detection limits (LODs) and quantification limits (LOQs) of the technique varied between 0.097–0.13 ng·g −1 and 0.32–0.43 ng·g −1 , respectively. To assess the accuracy, the method was tested with samples spiking at three concentration levels, and the obtained results revealed that the recovery rates varied from 88.97–113.7%. To summarize, this study represents the initial application of in-situ dispersed lanthanide metal chloride anion-MDESs for analyzing bean samples and the proposed DLLME technique is rapid, straightforward, and efficient.
研究领域:
分析化学
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食品科学
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高影响因子
ACS Applied Nano Materials
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2024
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IF 5.3
Ziyue Ju,Zhan Wang,Yaqi Shi,Xiaojie Xu,Ruichan Lv
Photodynamic therapy (PDT) is an effective strategy for cancer treatment, which offers advantages such as rapid effectiveness, low toxicity, and minimal trauma. However, one of the key components of PDT, photosensitizers, typically requires excitation by ultraviolet or visible light to function, which limits the application of this therapy to some extent. To address the above issues, in this research, a composite material UCNPs@SiO2–ZnPc-Fe(OH)3 (USZ-Fe(OH)3) was prepared for photochemo-dynamic therapy (PCDT) based on rare earth upconversion nanoparticles (UCNPs). To enhance the upconversion fluorescence intensity, a layer of inert shell was coated on the original nanoparticles, resulting in core–shell–shell-structured UCNPs of NaYF4:Yb,Er@NaYF4:Nd@NaYF4. A layer of SiO2 was coated on the above UCNPs in order to improve their biocompatibility, followed by loading the photosensitizer ZnPc to prepare UCNPs@SiO2–ZnPc (USZ) for PCDT of oral squamous cell carcinoma (OSCC). Finally, Fe(OH)3 was loaded on the surface of USZ through electrostatic adsorption to obtain USZ-Fe(OH)3, with the aim of improving the hypoxic environment in solid tumors and achieving the effectiveness of PCDT. In vitro and in vivo experiments demonstrated the composite material USZ-Fe(OH)3 exhibited excellent therapeutic effects in PCDT for OSCC. Moreover, a deep learning model of the ResNet18 network was used to detect the pathology of the tumor area from mice treated with PCDT and those from the control group. All of the results indicate the proposed PCDT platform in this work presented excellent performance in tumor treatment.
研究领域:
生物医学工程
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肿瘤学
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纳米医学
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MATERIALS CHEMISTRY AND PHYSICS
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2025
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IF 4.7
Shanshan Wang,Haotong Wang,Benteng Ma,Bingxin Zhu,Yusheng Yang,Min Qiu,Milin Zhang
The Nd–Ni intermetallic compounds have been used as a hydrogen storage material due to their high hydrogen storage capacity. Eight Nd–Ni intermetallic compounds have been identified, and the optimal alloy composition needs to be prepared for controllable material properties. In this work, the Nd–Ni intermetallic coatings were prepared by electrolysis in molten LiCl–KCl, and the neodymium activity in these intermetallics was measured. The electrochemical behavior of Nd(III) ions was investigated on the inert W electrode and active Ni electrode, respectively. The reduction process of Nd(III) ions was two-step and controlled by diffusion on a W electrode. Meanwhile, we found that Nd(II) ions affected the accurate evaluation of the diffusion coefficient because of the disproportionation reaction Nd(II)↔Nd(III) + Nd(0). The formation mechanism of Nd–Ni intermetallic coatings was resolved using a combination of electrochemical and EDS methods. Five Nd–Ni intermetallic NdNi 5 , Nd 2 Ni 7 , NdNi 3 , NdNi 2 , and NdNi coatings were successfully prepared by potentiostatic electrolysis. The activity and activity coefficient of neodymium in these intermetallic compounds were obtained. The relationship between the formation potential of Nd–Ni intermetallic compounds and the neodymium activity was established.
研究领域:
材料科学
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电化学
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物理化学
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高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Mohamed Nabeel Mattath,Sumon Pratihar,Thimmaiah Govindaraju,Shuo Shi
In the domain of digital data exchange, ensuring information security is the supreme demand for data storage and transmission. Interlinking cryptographic techniques with steganographic principles can enhance data confidentiality. However, there have been no reports thus far to develop molecular platforms for hybrid crypto-steganography systems. Using our synthesized nanoclusters (BSA-Au/Ag NCs) through bovine serum albumin (BSA) as a versatile scaffold, we fabricated a molecular platform for concatenated logic circuits and molecular keypad lock. Then, we integrate terrestrial direction information transmission through molecular navigation, employing a double block cipher by combining stego key and shifting cipher key techniques to develop a hybrid crypto-steganography system, aimed at enhancing security paradigms. Furthermore, we prioritize information protection by developing an enhanced distress call protocol using a polyalphabetic cipher to activate covert communication capabilities, thereby safeguarding data against potential infiltrators.
研究领域:
生物化学
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信息安全
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纳米科技
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PubMed
高影响因子
Materials Today Communications
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2024
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IF 3.7
Shijie Yu,Yuhao Chai,Chenyi Zhu,Kebing Zhu,Li Liu,Xiuli Zhang,Xiaocui Wang,Jun Cao
To improve the tribological performance and corrosion resistance of engine bearings exposed to contaminated lubricating oil , polymer coatings containing NdCl 3 at concentrations of 3.45 wt%, 5.17 wt%, and 6.89 wt% were developed, respectively. These coatings were applied to the surfaces of copper and aluminum alloys using a liquid spraying technique, aiming to assess their corrosion and wear resistance. Electrochemical experiments showed that the coating with a 3.45 wt% NdCl 3 concentration exhibited superior corrosion resistance , as evidenced by the highest self-corrosion potential and polarization resistance. Furthermore, friction tests on the corroded samples revealed that the 3.45 wt% NdCl 3 coating also demonstrated the lowest coefficients of friction and wear rates. This is due to the addition of an appropriate amount of NdCl 3 , which densifies the internal structure of the coating and improves the mechanical properties of the coating, thereby significantly improving its corrosion and wear resistance.
研究领域:
材料科学
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腐蚀与防护
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表面工程
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高影响因子
Nano Research
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2024
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IF 9.5
Li Qingqing,Sun Chang,Sun Xiaolei,Yin Zijun,Du Yaping,Liu Jin-Cheng,Luo Feng
Direct ethanol fuel cells (DEFCs) have drawn attention for their simplicity, rapid start-up, high power density and environmental friendliness. Despite these advantages, the widespread application of DEFCs faces challenges, primarily due to the inadequate performance of anode and cathode catalysts. Pd-based materials have shown exceptional catalytic activity for both the ethanol oxidation reaction (EOR) and the oxygen reduction reaction (ORR). Alloying noble metals with rare earth elements has emerged as an effective strategy to further enhance the catalytic activity by modulating the electronic structure. In this study, we synthesized a series of palladium-rare earth (Pd 3 RE) alloys supported on carbon to serve as bifunctional catalysts that efficiently promote both ORR and EOR. Compared to Pd/C, the Pd 3 Tb/C catalyst exhibits 3.1-fold and 1.8-fold enhancement in activity for ORR and EOR, respectively. The charge transfer in the Pd 3 Tb/C results in an electron-rich Pd component, thereby weakening the binding energy with oxygen species and facilitating the two reactions.
研究领域:
材料科学
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电化学
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催化科学
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高影响因子
Journal of Materials Chemistry C
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2024
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IF 5.7
Ximei An,Ling Gao,Jingrui Guo,Fan Meng,Huiwang Lian,Shaoan Zhang,Janak L. Pathak,Yang Li,Shizhen Zhang
In vivo wound healing stands as a transformative paradigm in the field of tissue repair and regeneration, yet still suffers from a pivotal limitation of inferior penetration depth along with the thermal tissue damage side-effect of photopolymerization hydrogels under conditions of suboptimal light and power. Herein, we propose an upconversion-photopolymerization-driven strategy and synthesize injectable NaYF4:Yb3+,Tm3+@NaYF4:Nd3+,Yb3+ + GelMa (UC-YT@NY + GelMa) hydrogel hybrids to respond to in vivo wound healing. The use of a near-infrared laser with a wavelength of 808 nm, a power density of 1.27 W cm−2 and an irradiation time of 8 minutes resulted in a hydrogel photopolymerization efficiency of up to 96.3%. A comparison with the use of a 980 nm laser under the same conditions shows that our process not only has excellent photopolymerization performance, but also significantly reduces the photothermal effect. Our biocompatible hydrogel hybrids facilitate deep-penetration wound healing at a depth of 3 mm in a mouse model and achieve complete healing in 7 days. This novel interventional therapy provides precise spatiotemporal control over therapeutic agent release, offering high-quality deep-tissue wound healing.
研究领域:
生物医学工程
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材料科学
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组织工程
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高影响因子
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