Rare Metals最新文献

{"title":"Atomic-scale understanding of interstitial-strengthened high-entropy alloys","authors":"Qiang Yu,&nbsp;Shi Qiu,&nbsp;Zeng-Bao Jiao","doi":"10.1007/s12598-025-03358-z","DOIUrl":"10.1007/s12598-025-03358-z","url":null,"abstract":"<div><p>Interstitial alloying has emerged as a powerful strategy to tune microstructure and microproperties of high-entropy alloys (HEAs) due to the strong interaction of interstitials with constituent elements and crystal defects, which enables the development of advanced alloys with superior mechanical and functional properties. The paper reviews the latest progress in the atomic-scale understanding of the effects of various interstitials, including carbon, boron, nitrogen, oxygen, and hydrogen, on the microstructure, stability, mechanical properties, and deformation behavior of HEAs. Emphases are placed on the in-depth insights on the interaction of interstitials with constituent elements and crystal defects, such as vacancies, stacking faults, and grain boundaries. Key parameters for rapid prediction of intrinsic properties of HEAs are also discussed. Finally, we highlight some unsolved issues and provide perspectives for future research directions.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6002 - 6014"},"PeriodicalIF":11.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03358-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating electronic structure of Fe atomic cluster by Cu single-atom sites for enhanced oxygen reduction reaction","authors":"Jing Wu,&nbsp;Jian Rong,&nbsp;Wang-Yi Chen,&nbsp;Chao-Sheng Wang,&nbsp;Chu-Jun Feng,&nbsp;Huai-Sheng Ao,&nbsp;Cheng-Zhang Zhu,&nbsp;Yu-Zhe Zhang,&nbsp;Zhong-Yu Li","doi":"10.1007/s12598-025-03342-7","DOIUrl":"10.1007/s12598-025-03342-7","url":null,"abstract":"<div><p>Regulating the electronic structure and oxygen-containing intermediates adsorption behavior on Fe-based catalysts is of great significance to cope with the sluggish oxygen reduction reaction (ORR) kinetics, but it still remains a great challenge. In this work, Fe atom clusters (Fe_AC) modified by high-density Cu single atoms (Cu_SA) in a N,S-doped porous carbon substrate (Fe_AC/Cu_SA@NCS) is reported for enhanced ORR electrocatalysis. Fe_AC/Cu_SA@NCS exhibits excellent ORR performance with a half-wave potential (<i>E</i>_1/2) of 0.911 V, a high four-electron process selectivity and excellent stability. The ORR performance is also verified in the Fe_AC/Cu_SA@NCS-based Zn-air battery, which shows a high peak power density of 192.67 mW cm⁻², a higher specific capacity of 808.3 mAh g⁻¹ and impressive charge–discharge cycle stability. Moreover, density functional theory calculations show that Cu single atoms synergistically modulate the electronic structure Fe active atoms in Fe atomic clusters, reducing the energy barrier of the rate-determining step (i.e., ^*OH desorption) on Fe_AC/Cu_SA@NCS. This work provides an effective way to regulate the electronic structure of Fe-based catalysts and optimize their electrocatalytic activity based on the introduction of a second metal source.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6279 - 6291"},"PeriodicalIF":11.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-amount RuP2 nanocluster anchored on P, N-codoped carbon with optimized H and H2O adsorption boost hydrogen evolution in anion-exchange membrane water electrolyzer","authors":"Hao Zhang,&nbsp;Jia-Jian Liao,&nbsp;Liang Chen,&nbsp;Xin-Yi Chen,&nbsp;Zhi-Peng Yu,&nbsp;Hong Yin,&nbsp;Jing Zhang,&nbsp;Zhao-Hui Hou,&nbsp;Jun-Lin Huang","doi":"10.1007/s12598-025-03362-3","DOIUrl":"10.1007/s12598-025-03362-3","url":null,"abstract":"<div><p>Developing efficient and stable catalysts for the hydrogen evolution reaction (HER) is essential for advancing anion-exchange membrane water electrolyzer (AEMWE) technology. In this study, we present a facile microwave reduction and low-temperature phosphorization strategy to synthesize a highly efficient HER catalyst, comprising P, N-codoped carbon-supported RuP₂ nanocluster (RuP₂@PNC). RuP₂@PNC demonstrates outstanding HER performance, achieving overpotentials of 18 and 44 mV at a current density of 10 mA cm⁻² in alkaline and acidic media, respectively. Furthermore, an AEMWE device utilizing RuP₂@PNC as the cathode catalyst delivers a current density of 0.5 A cm⁻² at a cell voltage of 1.84 V and exhibits remarkable stability over 150 h of operation. Experimental analyses and density functional theory (DFT) calculations reveal that the synergistic effects of P, N-codoped and the unique structure of RuP₂ enhance electron transfer between Ru and the support, optimize the electronic structure, and regulate the d–band center of Ru. These features improve water adsorption, weaken the Ru–H binding strength, and facilitate efficient H₂ desorption, collectively driving the superior HER activity of RuP₂@PNC. This work offers an effective design strategy for high-performance HER catalysts and provides valuable insights for accelerating the development of AEMWE technology.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6268 - 6278"},"PeriodicalIF":11.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anisotropy and synaptic plasticity in CrSBr/WSe2 heterojunction for advanced neural network applications","authors":"Yang Zhao,&nbsp;Hong-Bin Yu,&nbsp;Chun-Yu Zhao,&nbsp;De-Nan Kong,&nbsp;Dai-Nan Wang,&nbsp;Long-Yi Fu,&nbsp;Qing-Mei Hu,&nbsp;Dian Li,&nbsp;Tian-Yu Zang,&nbsp;Shou-Jun Zheng,&nbsp;Yao Zhou,&nbsp;Jia-Dong Zhou","doi":"10.1007/s12598-025-03319-6","DOIUrl":"10.1007/s12598-025-03319-6","url":null,"abstract":"<div><p>Employing two-dimensional (2D) synaptic devices to develop a brain-inspired neuromorphic computing system is a promising approach to overcoming the limitations of the von Neumann architecture. However, isotropic 2D materials are predominantly utilized to fabricate synaptic devices. Research on inherently anisotropic 2D materials in synaptic devices remains scarce. Here, we report an intrinsically anisotropic material, CrSBr, which exhibits optoelectronic properties with significant angular dependence, achieving a carrier mobility ratio as high as 7.83 between the <i>a</i>-axis and <i>b</i>-axis. Based on this, we couple the in-plane anisotropy into the synaptic device and construct CrSBr/WSe₂ multi-terminal device. This device can be regulated by the gate voltage and laser, exhibiting storage and synaptic behaviors dependent on the <i>a</i> and <i>b</i> axes. Furthermore, we apply the synaptic property to achieve image recognition. Due to the anisotropic response to identical external stimulus, the <i>a</i>-axis conductance trend transits from nonlinear to approximately linear within the multi-terminal conductance framework. This multi-terminal synapse model achieves a recognition rate of up to 91% on the Fashion-MNIST database, significantly outperforming single-terminal recognition performance. Our work introduces a novel approach to anisotropic artificial synapses for simulated image recognition and establishes a foundation for developing AI systems with enhanced recognition rates.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6483 - 6493"},"PeriodicalIF":11.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Confined-parallel-space in-situ growth method: a strategy for fabricating high-quality graphene-Cu composite with excellent comprehensive properties","authors":"Tong Zhang,&nbsp;Zhen-Dong Shi,&nbsp;Chang-Sheng Xing,&nbsp;Yun-Zhong Wu,&nbsp;Bin Liu,&nbsp;Ye-Kang Guan,&nbsp;Yu Jian,&nbsp;Jia-Xu Shuang,&nbsp;Jie Sheng,&nbsp;Li-Dong Wang,&nbsp;Wei-Dong Fei","doi":"10.1007/s12598-025-03291-1","DOIUrl":"10.1007/s12598-025-03291-1","url":null,"abstract":"<div><p>Graphene-copper (Gr-Cu) composites exhibit significant potential for industrial applications. Among the methods for fabricating Gr-Cu composites, the in-situ growth method stands out as a simple yet effective approach. However, graphene converted from liquid or solid molecules by the traditional in-situ growth method often exhibits numerous defects, thereby reducing its effectiveness in enhancing the electrical properties of the composites. To address this issue, we developed an innovative and efficient method, referred to as the “confined-parallel-space in-situ growth (CPS) method,” to grow high-quality graphene and fabricate high-conductivity Gr-Cu composites. Oleic acid was chosen as the small molecular carbon source and confined between copper sheets obtained by rolling dendritic copper powder. This carbon source underwent conversion into oriented, high-quality graphene in the confined space at high temperature. The high-quality graphene sheets serve as continuous electron transport channels, significantly improving the conductivity of the composite. The composite prepared by the CPS method (CPS-composite) demonstrates unique conductivity, exceeding that of standard annealed copper at temperatures above 40 °C and notably outperforming it by 3.2% at 160 °C. In addition, compared to the composite with a similar carbon content prepared by the traditional in-situ growth method, the yield strength of the CPS-composite increased by 23.6%, while the strengthening efficiency of graphene improved by 146.6%, achieving an ultrahigh value of 489 at a carbon volume fraction of 0.086 vol%. The CPS method emerges as a novel strategy for fabricating high-performance, low-cost, and large-scale graphene-copper composites using small molecular carbon sources, making it suitable for industrial production.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6456 - 6470"},"PeriodicalIF":11.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A systematic study of hot deformation mechanisms in La–Fe–Co–Si alloys and the mitigation of defects in hot rolling process","authors":"Seon Yeong Yang,&nbsp;Min Jik Kim,&nbsp;Hadiseh Esmaeilpoor,&nbsp;Kook Chae Chung,&nbsp;Woo Seok Yang,&nbsp;Jeoung Han Kim,&nbsp;Dong Gun Lee,&nbsp;Kwang Seok Lee,&nbsp;Da Seul Shin","doi":"10.1007/s12598-025-03347-2","DOIUrl":"10.1007/s12598-025-03347-2","url":null,"abstract":"<div><p>Although hot-rolled La(Fe, Co, Si)₁₃-based alloys are promising magnetocaloric materials for solid-state cooling with near-net shaping capabilities, their underlying hot deformation mechanisms remain largely unexplored. In this study, a comprehensive and systematic investigation was conducted, by encompassing the analysis of hot deformation mechanisms, along with the microstructure evolution and magnetocaloric properties of hot-rolled La–Fe–Co–Si alloy. The La_1.05Fe_11.2Co_0.7Si_1.38 alloy was examined using multiscale mechanical analysis to assess the effects of temperature. A series of macroscale hot compression and microscale nanoindentation tests were performed to access global and local mechanical properties, including variations in hardness and indentation modulus of the primary α-Fe and secondary 1:1:1 phases up to 800 °C. A significant decrease in hardness and elastic recovery of the secondary phase was observed between 600 and 800 °C, above half of its melting point (1113 °C), suggesting pronounced flow softening in both the α-Fe and 1:1:1 phases. Additionally, a novel multi-step annealing process was introduced for hot-rolled La–Fe–Co–Si alloys, involving partial transient liquid-phase diffusion in the 1:1:1 phase to address deformation-induced defects, such as residual α-Fe and lattice distortions in the 1:13 phase, which have not been previously reported. As a result, a primary La(Fe, Co, Si)₁₃ phase with a volume fraction of 97.5% was achieved after multi-step annealing, compared to 87.5% using conventional annealing. Correspondingly, the magnetocaloric properties were restored, with the Curie temperature (<i>T</i>_C) recovering from 276 to 268 K and the maximum magnetic entropy change (Δ<i>S</i>_M) increasing from 7.56 to 8.67 J kg⁻¹ K⁻¹ under a 2 T magnetic field.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 8","pages":"5727 - 5747"},"PeriodicalIF":11.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03347-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapidly polymerized multifunctional hydrogel sensor initiated by nanocellulose-stabilized MXene-coated liquid metal for advanced wearable applications","authors":"Xu Huang,&nbsp;Carlos Jonay Jiménez,&nbsp;Maria Guix,&nbsp;Cristina Madrid Xufré,&nbsp;Yisimayili Tuersun,&nbsp;Sheng Chu","doi":"10.1007/s12598-025-03359-y","DOIUrl":"10.1007/s12598-025-03359-y","url":null,"abstract":"<div><p>Hydrogel strain sensors represent an important development for research into flexible electronics, being able to convert external stimuli into easily monitored electrical signals. However, finding simple and rapid preparation methods, as well as ensuring compatibility between conductive fillers and the polymer matrix are still the main challenges for conductive hydrogel applications. In this work, we utilize MXene to coat liquid metal droplets that have been broken by ultrasound while incorporating cellulose nanofibers to make them stably dispersed. Electron paramagnetic resonance spectroscopy revealed that the obtained composite filler could catalyze the release of additional hydroxyl radicals from ammonium persulfate to enable the rapid gelation of acrylic acid under ambient conditions. This unique property allows for the mold-based fabrication of hydrogels in various shapes, and we also explored the use of microfluidic devices for printing. The conductive hydrogels showed good tensile properties, small hysteresis loops, high self-healing efficiency (97% conductive recovery), and antimicrobial properties. When assembled into flexible sensors, the hydrogel can accurately monitor body movements with stable repeatability. The outstanding characteristics of the hydrogel not only offer a material basis for the development of novel flexible sensors, but also have the potential for rapid, large-scale, and customized preparation through fast gelation.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6402 - 6416"},"PeriodicalIF":11.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HKUST-1 derived carbon nanocomposites as grease additives for friction and wear reduction","authors":"Jian-Xi Liu,&nbsp;Le-Jie Tian,&nbsp;Meng-Chen Zhang,&nbsp;Song-Wei Zhang,&nbsp;Yong Qian,&nbsp;Yuan-Zheng Wang,&nbsp;Xing-Min Liu,&nbsp;Long Wang,&nbsp;Li-Tian Hu","doi":"10.1007/s12598-025-03355-2","DOIUrl":"10.1007/s12598-025-03355-2","url":null,"abstract":"<div><p>Lubricating greases are widely used in mechanical engineering, especially in rolling bearing. Carbon-based materials show promise as lubricant additive for formulating high-performance grease. However, the enhancement of lubrication performance of carbon-based materials limits by the simple lubricating mechanism. This work demonstrates that nanocomposite of metal–organic frameworks (MOFs)-derived carbon as a grease additive can improve the tribological properties of bentone grease. HKUST-1 was synthesized by a solvent method and converted into HKUST-1derived carbon (HDC) via one-step pyrolysis sacrifice template method. After pyrolysis of HKUST-1 at 350 °C, Cu²⁺ was reduced to zero-valence copper. With increasing pyrolysis temperature from 350 to 950 °C, both the particle size of copper in HDC and the degree of graphite defect increased gradually. Types of HDCs as base grease additives significantly improved friction-reduction and anti-wear performance of bentone grease. Compared with the base grease, HDC-950 °C with the amount of 2 wt% addition reduced friction coefficient and wear volume loss by 35.5% and 97.0%, respectively. The superior tribological performance of the HDC-950 °C is attributed to the synergistic effect of carbon and copper nanoparticles to induce tribochemical reaction, which form a stable protective film on the friction surfaces. This study highlights the potential of MOFs-derived carbon for developing high-performance grease additives.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 8","pages":"5554 - 5565"},"PeriodicalIF":11.0,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03355-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon-coated Co2VO4 with high pseudo-capacitance to enhance Na+ storage performance for advanced sodium-ion capacitors","authors":"Ai-Jun Jiao,&nbsp;Shi-Chun Zhang,&nbsp;Zhi-Wei Li,&nbsp;Yong-Ming Zhang,&nbsp;You-Kang Duan,&nbsp;Tong Su,&nbsp;Zhen-Hai Fu","doi":"10.1007/s12598-025-03339-2","DOIUrl":"10.1007/s12598-025-03339-2","url":null,"abstract":"<div><p>Developing high-performance anode materials is crucial for the advancement of sodium-ion capacitors with high-energy density and large power density. Bimetallic oxides exhibit a high specific capacity due to their synergistic effects in electrochemical processes. However, challenges such as poor electrical conductivity, slow ion transport, and volume expansion severely limit their development. In this study, Co₂VO₄@C-1.5 was synthesized through a straightforward method involving solvent-heating and carbonization via calcination. The synergistic effect of Co and V, mitigation of volume expansion by the carbon-coated layer, enhancement of pseudocapacitive behavior and improved electrical conductivity of Co₂VO₄@C-1.5 contribute to its superior electrochemical performance. The specific capacity of Co₂VO₄@C-1.5 remained steady at 288.8 and 171.7 mAh g⁻¹ after 100 and 500 cycles at 100 and 1000 mA g⁻¹, respectively. Density functional theory (DFT) calculations show a notable reduction in the energy barrier of Co₂VO₄@C-1.5. Furthermore, the assembled sodium-ion capacitor Co₂VO₄@C-1.5//AC demonstrates high-energy density (108.5 Wh kg⁻¹ at 99.8 W kg⁻¹), remarkable power density (38.2 Wh kg⁻¹ at 12,000 W kg⁻¹), and long-cycle stability (capacity retention of 80.6% after 6000 cycles). The design and optimization of the carbon-coated structure provide valuable insights for the development of bimetallic oxide materials in sodium-ion capacitors (SICs).</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6152 - 6162"},"PeriodicalIF":11.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioinspired cell membrane-like hybrid coating for enhanced bioactivity and corrosion resistance of magnesium-based implants","authors":"Hong-Lei Yue,&nbsp;Zhi-Chao Liu,&nbsp;Zi-Yu Yan,&nbsp;Guan-Qi Liu,&nbsp;Liang-Wei Chen,&nbsp;Jian-Hua Zhu,&nbsp;Jian-Min Han","doi":"10.1007/s12598-025-03323-w","DOIUrl":"10.1007/s12598-025-03323-w","url":null,"abstract":"<div><p>Magnesium (Mg)-based biometals are promising candidates for next-generation biodegradable implants in bone regeneration. However, their rapid biocorrosion in physiological environments necessitates protective coatings to enhance corrosion resistance and osteogenesis. Conventional hydrophobic modifications, while effective in mitigating corrosion, often impair biological responses, hindering tissue integration and bone regeneration. Inspired by the architecture of cell membranes, we developed a novel layered octacalcium phosphate (OCP) coating intercalated with a hydrophobic alkyl-phosphate-surfactant bilayer, imparting Mg biometals with enhanced bioactivity and resistance to biocorrosion. Additionally, an MgF₂ transition layer with a mechanically interlocking architecture is fabricated via an in situ growth approach, ensuring the long-term structural integrity and interface stability of the hybrid coating. Compared with conventional coatings, the resulting intercalated organic/inorganic hybrid coatings exhibit exceptional mechanical robustness, remarkable corrosion resistance, and bioactivities conducive to cellular adhesion and proliferation<i>. </i>In vivo implantation tests further revealed a significantly reduced corrosion depth (~ 1.1 μm), minimal inflammatory response, and reduced fibrous encapsulation (~ 65.2 μm), demonstrating its clinical potential. This work pioneers a bioinspired strategy for multifunctional inorganic/organic hybrid coatings, advancing the clinical application of Mg-based implants in osteogenesis.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 7","pages":"4898 - 4912"},"PeriodicalIF":11.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}