Lithium metal batteries are among the most promising energy storage systems due to the high energy density. However, its practical application is hindered by growing lithium dendrite and unstable solid electrolyte interphase. Three-dimensional conductive collectors have been widely proposed to solve the above problems, while their lithophobic behavior has no favorable effect on lithium plating/stripping. Composite anode (CF@SnO2-1.0@Li) with homogeneous SnO2 lithophilic sites are prepared, the lithium nucleation barrier is lowered through SnO2, and homogeneous deposition of lithium ions is induced, and consequently the growth of lithium dendrites and the formation of “dead Li” are suppressed. The CF@SnO2-1.0@Li symmetrical cells can stable cycle for more than 2200 h at 1 mA cm−2 and 1 mAh cm−2. The assembled LiFePO4 full cell exhibits a high initial discharge capacity of 145.1 mAh g−1 and a high capacity retention rate of 94.3% after 300 cycles at 1 C. Similarly, the assembled LiCoO2 full cell shows outstanding rate performance and cycling stability. This study provides a new strategy for the development of ultrastable lithium metal batteries.
{"title":"Lithophilic SnO2-reinforced carbon fiber-based composite anode for high-performance lithium metal batteries","authors":"Ting Liu, Hao Xu, Shuai Liu, Weimin Wang, Kaikai Song, Lina Hu","doi":"10.1016/j.electacta.2025.145908","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.145908","url":null,"abstract":"Lithium metal batteries are among the most promising energy storage systems due to the high energy density. However, its practical application is hindered by growing lithium dendrite and unstable solid electrolyte interphase. Three-dimensional conductive collectors have been widely proposed to solve the above problems, while their lithophobic behavior has no favorable effect on lithium plating/stripping. Composite anode (CF@SnO<sub>2</sub>-1.0@Li) with homogeneous SnO<sub>2</sub> lithophilic sites are prepared, the lithium nucleation barrier is lowered through SnO<sub>2</sub>, and homogeneous deposition of lithium ions is induced, and consequently the growth of lithium dendrites and the formation of “dead Li” are suppressed. The CF@SnO<sub>2</sub>-1.0@Li symmetrical cells can stable cycle for more than 2200 h at 1 mA cm<sup>−2</sup> and 1 mAh cm<sup>−2</sup>. The assembled LiFePO<sub>4</sub> full cell exhibits a high initial discharge capacity of 145.1 mAh g<sup>−1</sup> and a high capacity retention rate of 94.3% after 300 cycles at 1 C. Similarly, the assembled LiCoO<sub>2</sub> full cell shows outstanding rate performance and cycling stability. This study provides a new strategy for the development of ultrastable lithium metal batteries.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"30 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hydrogen absorption and desorption in metal alloys are of great interest for application as negative electrode materials in environment-friendly nickel-metal hydride (Ni-MH) aqueous batteries as well as safe hydrogen storage applications. In this review, we bring forward the recent development and new insights on the substitutional doping of the two key MH alloys, AB5-type rare-earth alloy, and AB2-type Laves phase alloys for application in Ni-MH batteries. The substitutional doping in the A or B sites of the AB5-type and AB2-type alloys is significant in enhancing performance and stability for hydrogen storage and as an anode material of Ni-MH batteries. The rare-earth site A and transition metal site B in an AB5-type alloy have been doped by several other rare-earth and transition metal elements with various compositions. Similarly, A and B sites containing transition metals of the AB2-type Laves phase alloys are doped with other rare-earth and transition metals in different compositions to develop novel MH alloys. Further, high entropy alloys (HEAs) are studied to obtain better chemical activity and stability for hydrogen storage at room temperature as a prospective material for application in Ni-MH batteries. Thus, this review provides a detailed understanding on the doping approaches for the two key MH alloys of AB5-type and AB2-type alloys, additionally, HEAs as novel electrode materials for Ni-MH batteries and hydrogen storage energy technologies.
{"title":"Recent advances in substitutional doping of AB5 and AB2 type hydrogen storage metal alloys for Ni-MH battery applications","authors":"Golap Kalita, Ryo Otsuka, Takashi Endo, Satoru Furukawa","doi":"10.1016/j.jallcom.2025.179352","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.179352","url":null,"abstract":"Hydrogen absorption and desorption in metal alloys are of great interest for application as negative electrode materials in environment-friendly nickel-metal hydride (Ni-MH) aqueous batteries as well as safe hydrogen storage applications. In this review, we bring forward the recent development and new insights on the substitutional doping of the two key MH alloys, AB<sub>5</sub>-type rare-earth alloy, and AB<sub>2</sub>-type Laves phase alloys for application in Ni-MH batteries. The substitutional doping in the A or B sites of the AB<sub>5</sub>-type and AB<sub>2</sub>-type alloys is significant in enhancing performance and stability for hydrogen storage and as an anode material of Ni-MH batteries. The rare-earth site A and transition metal site B in an AB<sub>5</sub>-type alloy have been doped by several other rare-earth and transition metal elements with various compositions. Similarly, A and B sites containing transition metals of the AB<sub>2</sub>-type Laves phase alloys are doped with other rare-earth and transition metals in different compositions to develop novel MH alloys. Further, high entropy alloys (HEAs) are studied to obtain better chemical activity and stability for hydrogen storage at room temperature as a prospective material for application in Ni-MH batteries. Thus, this review provides a detailed understanding on the doping approaches for the two key MH alloys of AB<sub>5</sub>-type and AB<sub>2</sub>-type alloys, additionally, HEAs as novel electrode materials for Ni-MH batteries and hydrogen storage energy technologies.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"21 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-22DOI: 10.1016/j.ijplas.2025.104287
Xiaocong Yang, Yuezhang Ju, Chengning Li, Chang Gao, Lingzhi Ba, Shipin Wu, Ce Wang, Taihao Ding, Ying Wang, Xinjie Di
In this study, the low-carbon ultra-high-strength steels with precipitation-free were prepared using quenching processes, and the co-precipitation strengthening of multi-scale Cu-rich and NiAl were designed to enhance fatigue performance through quenching-tempering (QT) and quenching-partitioning-tempering (QPT) processes respectively. The microstructure of quenched steel shows a typical mixed microstructure of lath martensite (LM) and granular bainite (GB). After aging at 550 °C for 1 h, the high density (1.945 × 1023 m-3) of B2-NiAl and B2 core-9R shell nanoparticles were uniformly co-precipitated and greatly increased the yield strength and high-cycle fatigue strength from 965 MPa and 384.6 MPa to 1548 MPa and 510.7 MPa, respectively. The substantial improvement in fatigue performance is attributed to the large number of small-sized nanoparticles that hinder the movement of dislocations to form high-density dislocation tangles (HDDTs) and cell structures, reducing the stress concentration at grain boundaries. Furthermore, geometric phase analysis (GPA) revealed the existence of micro-strain around small-sized multi-component precipitates, which is less likely to cause micro-crack initiation, thereby enhancing the fatigue performance. After QPT treatment, the co-precipitated nanoparticles exhibited multi-scale distribution with a significantly reduced number density of 1.005 × 1023 m-3, and the typical large-sized FCC-Cu particles are identified, which weakens the precipitation strengthening and leads to the yield strength and fatigue strength reached 1396 MPa and 424.5 MPa respectively. Furthermore, the GNDs obviously accumulate at the interface between reversed austenite (RA) and matrix by the movement of dislocations and bypassed nanoparticles, which increases the tendency of microcrack initiation at the interface. In addition, the high strain accumulated at the interface of FCC-Cu particles increases the risk of fatigue damage and limits the improvement of fatigue performance.
{"title":"Enhancing fatigue life of low-carbon ultra-high strength steel by inducing multi-component precipitates","authors":"Xiaocong Yang, Yuezhang Ju, Chengning Li, Chang Gao, Lingzhi Ba, Shipin Wu, Ce Wang, Taihao Ding, Ying Wang, Xinjie Di","doi":"10.1016/j.ijplas.2025.104287","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104287","url":null,"abstract":"In this study, the low-carbon ultra-high-strength steels with precipitation-free were prepared using quenching processes, and the co-precipitation strengthening of multi-scale Cu-rich and NiAl were designed to enhance fatigue performance through quenching-tempering (QT) and quenching-partitioning-tempering (QPT) processes respectively. The microstructure of quenched steel shows a typical mixed microstructure of lath martensite (LM) and granular bainite (GB). After aging at 550 °C for 1 h, the high density (1.945 × 10<sup>23</sup> m<sup>-3</sup>) of B2-NiAl and B2 core-9R shell nanoparticles were uniformly co-precipitated and greatly increased the yield strength and high-cycle fatigue strength from 965 MPa and 384.6 MPa to 1548 MPa and 510.7 MPa, respectively. The substantial improvement in fatigue performance is attributed to the large number of small-sized nanoparticles that hinder the movement of dislocations to form high-density dislocation tangles (HDDTs) and cell structures, reducing the stress concentration at grain boundaries. Furthermore, geometric phase analysis (GPA) revealed the existence of micro-strain around small-sized multi-component precipitates, which is less likely to cause micro-crack initiation, thereby enhancing the fatigue performance. After QPT treatment, the co-precipitated nanoparticles exhibited multi-scale distribution with a significantly reduced number density of 1.005 × 10<sup>23</sup> m<sup>-3</sup>, and the typical large-sized FCC-Cu particles are identified, which weakens the precipitation strengthening and leads to the yield strength and fatigue strength reached 1396 MPa and 424.5 MPa respectively. Furthermore, the GNDs obviously accumulate at the interface between reversed austenite (RA) and matrix by the movement of dislocations and bypassed nanoparticles, which increases the tendency of microcrack initiation at the interface. In addition, the high strain accumulated at the interface of FCC-Cu particles increases the risk of fatigue damage and limits the improvement of fatigue performance.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"154 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471082","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}
Pub Date : 2025-02-22DOI: 10.1134/S1067821224600832
E. D. Merson, V. A. Poluyanov, P. N. Myagkikh, A. A. Sergeev, D. L. Merson
Insufficient corrosion resistance of magnesium alloys limits their technical and medical applications. It is known that the corrosion rate of these materials depends, among other things, on the orientation of the samples relative to the workpieces, for example, rods or sheets obtained by thermomechanical processing. There is an opinion in the literature that this is primarily due to the influence of crystallographic texture. In this work, the corrosion resistance of samples cut from extruded rods of industrial alloys ZK60 and AZ31 along and across the extrusion direction was investigated. The corrosion rate was determined by the loss of weight and volume of the samples, as well as by the volume of hydrogen released when they were dissolved in a 0.9% NaCl solution. The microstructure and surface of the samples after corrosion tests were investigated using scanning electron microscopy, energy-dispersive X-ray microanalysis, and electron backscatter diffraction. It is shown that the rod has a pronounced basal texture, and therefore the crystallographic orientation of the grains to the lateral surface of the transverse and longitudinal samples is very different. It was found that samples of both alloys cut across the rod had higher corrosion resistance than longitudinal samples. According to published data, if the anisotropy of corrosion properties were caused by crystallographic texture, then longitudinal samples, on the contrary, should have a lower corrosion rate than transverse ones. Therefore, it is concluded that, in the case of medium- and high-alloy magnesium alloys, the anisotropy of corrosion properties is associated mainly with the nature of the volume distribution of second-phase particles, and not with the crystallographic texture. It is shown that the row arrangement of particles on the surface of longitudinal samples leads to deterioration of corrosion resistance.
{"title":"Relationship between Anisotropy of Corrosion Properties of Extruded Alloys AZ31 and ZK60 with Crystallographic Texture and Volume Distribution of Second Phase Particles","authors":"E. D. Merson, V. A. Poluyanov, P. N. Myagkikh, A. A. Sergeev, D. L. Merson","doi":"10.1134/S1067821224600832","DOIUrl":"10.1134/S1067821224600832","url":null,"abstract":"<p>Insufficient corrosion resistance of magnesium alloys limits their technical and medical applications. It is known that the corrosion rate of these materials depends, among other things, on the orientation of the samples relative to the workpieces, for example, rods or sheets obtained by thermomechanical processing. There is an opinion in the literature that this is primarily due to the influence of crystallographic texture. In this work, the corrosion resistance of samples cut from extruded rods of industrial alloys ZK60 and AZ31 along and across the extrusion direction was investigated. The corrosion rate was determined by the loss of weight and volume of the samples, as well as by the volume of hydrogen released when they were dissolved in a 0.9% NaCl solution. The microstructure and surface of the samples after corrosion tests were investigated using scanning electron microscopy, energy-dispersive X-ray microanalysis, and electron backscatter diffraction. It is shown that the rod has a pronounced basal texture, and therefore the crystallographic orientation of the grains to the lateral surface of the transverse and longitudinal samples is very different. It was found that samples of both alloys cut across the rod had higher corrosion resistance than longitudinal samples. According to published data, if the anisotropy of corrosion properties were caused by crystallographic texture, then longitudinal samples, on the contrary, should have a lower corrosion rate than transverse ones. Therefore, it is concluded that, in the case of medium- and high-alloy magnesium alloys, the anisotropy of corrosion properties is associated mainly with the nature of the volume distribution of second-phase particles, and not with the crystallographic texture. It is shown that the row arrangement of particles on the surface of longitudinal samples leads to deterioration of corrosion resistance.</p>","PeriodicalId":765,"journal":{"name":"Russian Journal of Non-Ferrous Metals","volume":"65 1","pages":"1 - 10"},"PeriodicalIF":0.6,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-22DOI: 10.1016/j.ensm.2025.104127
Wenying Tang , Lanhe Zhang , Yang Liu , Sen Wang , Jian Zhang
MXene-modified zinc powder (MXene@Zn-p) anodes have demonstrated the unique effect of inhibiting dendrite growth, thereby enhancing interface stability. However, the insufficient binding force between Ti3C2Tx MXene and Zn powder, endowed with natural hydrophilicity, results in an inevitable failure of MXene@Zn-p anodes during long-term cycles. To address this issue, Dimethyl Diallyl Ammonium Chloride (DMDAAC) is introduced as a dual-functional electrode enhancer to construct a tight hydrophobic interface on the Zn powder composite anode by electrostatic self-assembly while effectively solving the weak adhesion and hydrophilicity of both MXene and Zn powder. The obtained Zn powder composite anode effectively suppresses dendrite growth and corrosion effects, achieving a durable interfacial stability. The DFT and COMSOL simulations further certify that the DMDAAC plays a key role in regulating uniform Zn deposition. As a result, the as-engineered anode achieves a high coulombic efficiency of 99.2% after 300 cycles at 1 mA cm-2. Symmetric cells with the composite Zn powder anode demonstrates stble cycling for 300 h at 1 mA g-1 and 1 mA h g-1, extending lifespan by 233 h compared with MXene@Zn-p anode. The assembled two full cells with Zn powder composite anode also exhibit reamrkably high capacity retention and cycling stability (89.8% after 200 cycles at 5 A·g-1 for MnVO and 82.2% after 1000 cycles at 1 A·g-1 for MnO2). This work provides an efficient strategy for achieving highly stable Zn powder composite anode, thus facilitating the commercialization process of aqueous zinc ion batteries.
{"title":"A dual-functional DMDAAC electrode enhancer with hydrophobic effect for highly stable Zn powder composite anode","authors":"Wenying Tang , Lanhe Zhang , Yang Liu , Sen Wang , Jian Zhang","doi":"10.1016/j.ensm.2025.104127","DOIUrl":"10.1016/j.ensm.2025.104127","url":null,"abstract":"<div><div>MXene-modified zinc powder (MXene@Zn-p) anodes have demonstrated the unique effect of inhibiting dendrite growth, thereby enhancing interface stability. However, the insufficient binding force between Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene and Zn powder, endowed with natural hydrophilicity, results in an inevitable failure of MXene@Zn-p anodes during long-term cycles. To address this issue, Dimethyl Diallyl Ammonium Chloride (DMDAAC) is introduced as a dual-functional electrode enhancer to construct a tight hydrophobic interface on the Zn powder composite anode by electrostatic self-assembly while effectively solving the weak adhesion and hydrophilicity of both MXene and Zn powder. The obtained Zn powder composite anode effectively suppresses dendrite growth and corrosion effects, achieving a durable interfacial stability. The DFT and COMSOL simulations further certify that the DMDAAC plays a key role in regulating uniform Zn deposition. As a result, the as-engineered anode achieves a high coulombic efficiency of 99.2% after 300 cycles at 1 mA cm<sup>-2</sup>. Symmetric cells with the composite Zn powder anode demonstrates stble cycling for 300 h at 1 mA g<sup>-1</sup> and 1 mA h g<sup>-1</sup>, extending lifespan by 233 h compared with MXene@Zn-p anode. The assembled two full cells with Zn powder composite anode also exhibit reamrkably high capacity retention and cycling stability (89.8% after 200 cycles at 5 A·g<sup>-1</sup> for MnVO and 82.2% after 1000 cycles at 1 A·g<sup>-1</sup> for MnO<sub>2</sub>). This work provides an efficient strategy for achieving highly stable Zn powder composite anode, thus facilitating the commercialization process of aqueous zinc ion batteries.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"76 ","pages":""},"PeriodicalIF":18.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465422","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}
Pub Date : 2025-02-22DOI: 10.1016/j.apsusc.2025.162782
Ling Pan, Qianlin Chen, Fangxiang Song, Zuo Li
Exploring high-rate and large-capacity electrode materials with superior electrical conductivity and rapid Li+ diffusion properties remains crucial for improving the performance of Li4Ti5O12 (LTO) anodes. In this study, a C/N/Br co-doped Li4Ti5O12/Ti3C2Tx/TiO2 nanosheet heterojunction was synthesized through a one-step hydrothermal method. Ti3C2Tx MXene nanosheets with relatively low electronegativity function as conductive enhancers and substrates for LTO anchoring, whereas cetyltrimethylammonium bromide (CTAB) acts as a structural directing agent, surfactant, and dopant in the composite material. Theoretical modeling and experimental findings confirm that heterostructures and elemental doping effectively modulate the electronic structure at material interfaces, improving both the diffusion and adsorption characteristics of Li+. Additionally, the incorporation of flexible and conductive Ti3C2Tx enhances the electrical conductivity of the material and mitigates volumetric changes in the composite. The high capacity (336 mAh/g) of partially oxidized TiO2 on the surface of Ti3C2Tx further contributes to the material’s electrochemical performance. The modified CNBr-Li4Ti5O12/Ti3C2Tx/TiO2 material demonstrated notable improvements in rate capability and cycling stability, achieving a capacity of 169.6 mAh/g at 20C (1C = 201.9 mAh/g) after 3000 cycles, with 100 % capacity retention. At 50C, the capacity retention is 83.82 % after 3000 cycles, with a final capacity of 124.9 mAh/g. The integration of heterostructure engineering, elemental doping, and two-dimensional nanoscale architectures offers a promising strategy for designing advanced lithium-ion anode materials with enhanced high-rate performance.
{"title":"C/N/Br co-doped Li4Ti5O12/Ti3C2Tx/TiO2 nanosheet heterojunction lithium-ion battery cathode material","authors":"Ling Pan, Qianlin Chen, Fangxiang Song, Zuo Li","doi":"10.1016/j.apsusc.2025.162782","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.162782","url":null,"abstract":"Exploring high-rate and large-capacity electrode materials with superior electrical conductivity and rapid Li<sup>+</sup> diffusion properties remains crucial for improving the performance of Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) anodes. In this study, a C/N/Br co-doped Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TiO<sub>2</sub> nanosheet heterojunction was synthesized through a one-step hydrothermal method. Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets with relatively low electronegativity function as conductive enhancers and substrates for LTO anchoring, whereas cetyltrimethylammonium bromide (CTAB) acts as a structural directing agent, surfactant, and dopant in the composite material. Theoretical modeling and experimental findings confirm that heterostructures and elemental doping effectively modulate the electronic structure at material interfaces, improving both the diffusion and adsorption characteristics of Li<sup>+</sup>. Additionally, the incorporation of flexible and conductive Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> enhances the electrical conductivity of the material and mitigates volumetric changes in the composite. The high capacity (336 mAh/g) of partially oxidized TiO<sub>2</sub> on the surface of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> further contributes to the material’s electrochemical performance. The modified CNBr-Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/TiO<sub>2</sub> material demonstrated notable improvements in rate capability and cycling stability, achieving a capacity of 169.6 mAh/g at 20C (1C = 201.9 mAh/g) after 3000 cycles, with 100 % capacity retention. At 50C, the capacity retention is 83.82 % after 3000 cycles, with a final capacity of 124.9 mAh/g. The integration of heterostructure engineering, elemental doping, and two-dimensional nanoscale architectures offers a promising strategy for designing advanced lithium-ion anode materials with enhanced high-rate performance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"21 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-22DOI: 10.1016/j.jmst.2024.12.055
Peng Ai, Xiaoping Mai, Bai Xue, Lan Xie
Exploiting high-performance absorption-dominant electromagnetic interference (EMI) shielding composites is urgently desired yet challenging for minimizing secondary electromagnetic radiation pollution. Herein, a nickel (Ni) shell was in-situ grown on a copper nanowires (CuNWs) core to greatly improve the stability of CuNWs, while maintaining excellent electrical conductivity. Afterward, Ni nanowires/Ni@Cu nanowires/graphite paper/waterborne polyurethane (NiNWs/Ni@CuNWs/graphite paper/WPU, nNi-mNi@Cu-G) composite foams with the multilayered gradient architectures were fabricated by a facile multi-step freeze-casting method. In the resultant composite foams, the lowly conductive porous NiNWs/WPU layer plays a role as the impedance matching layer, the moderately conductive porous Ni@CuNWs/WPU layer acts as the transition layer, and the highly conductive graphite paper layer serves as the reflection layer. Arising from the rational layout of multilayered gradient magnetic-electrical networks, nNi-mNi@Cu-G foam holds the superior averaged total EMI shielding effectiveness (EMI SET) of 75.2 dB and optimal absorption coefficient (A) of 0.93 at the incident direction from NiNWs/WPU layer, suggesting the dominant absorption in EMI shielding mechanism and efficiently alleviating the secondary electromagnetic pollution. Furthermore, nNi-mNi@Cu-G foam also exhibits fascinating compressive properties with a compressive strength of 49.3 kPa, which is essential for its practical application. This multilayered gradient architecture design provides valuable insight into high-efficiently constructing absorption-dominant EMI shielding composites.
{"title":"Core-shell nickel@copper nanowires associated with multilayered gradient architecture design towards excellent absorption-dominant electromagnetic interference shielding","authors":"Peng Ai, Xiaoping Mai, Bai Xue, Lan Xie","doi":"10.1016/j.jmst.2024.12.055","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.055","url":null,"abstract":"Exploiting high-performance absorption-dominant electromagnetic interference (EMI) shielding composites is urgently desired yet challenging for minimizing secondary electromagnetic radiation pollution. Herein, a nickel (Ni) shell was in-situ grown on a copper nanowires (CuNWs) core to greatly improve the stability of CuNWs, while maintaining excellent electrical conductivity. Afterward, Ni nanowires/Ni@Cu nanowires/graphite paper/waterborne polyurethane (NiNWs/Ni@CuNWs/graphite paper/WPU, <em>n</em>Ni-<em>m</em>Ni@Cu-G) composite foams with the multilayered gradient architectures were fabricated by a facile multi-step freeze-casting method. In the resultant composite foams, the lowly conductive porous NiNWs/WPU layer plays a role as the impedance matching layer, the moderately conductive porous Ni@CuNWs/WPU layer acts as the transition layer, and the highly conductive graphite paper layer serves as the reflection layer. Arising from the rational layout of multilayered gradient magnetic-electrical networks, <em>n</em>Ni-<em>m</em>Ni@Cu-G foam holds the superior averaged total EMI shielding effectiveness (EMI SE<em><sub>T</sub></em>) of 75.2 dB and optimal absorption coefficient (<em>A</em>) of 0.93 at the incident direction from NiNWs/WPU layer, suggesting the dominant absorption in EMI shielding mechanism and efficiently alleviating the secondary electromagnetic pollution. Furthermore, <em>n</em>Ni-<em>m</em>Ni@Cu-G foam also exhibits fascinating compressive properties with a compressive strength of 49.3 kPa, which is essential for its practical application. This multilayered gradient architecture design provides valuable insight into high-efficiently constructing absorption-dominant EMI shielding composites.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"48 12 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471003","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}
Yuyuan Zhang, Xiaojie Qin, Zhanyu Xu, Weifeng Liu, Hao Lu, Yu Yang, Jie Yang, Xinchun Li, Yuanqing Zhang, Fan Yang
Efficient profiling of circulating extracellular vesicles (EVs) benefits noninvasive cancer diagnosis and therapeutic monitoring, but is technically hampered by tedious isolation, multistep washing, and poor sensitivity. Here, we report multifunctional bubbles that enable self-separation, wash-free, single-step, and ultrasensitive profiling of EV surface markers in plasma samples for early diagnosis and treatment monitoring of lung cancer. In this assay, the buoyancy-dominated bubble is electric field-resistant, allowing EV-responsive release of electroactive probes for electrohydrodynamic nanoshearing force-enhanced hybridization, self-separation from the electrode interface for minimizing noise in electrochemical measurements, and one-step wash-free EV profiling. This assay achieves sensitivity near a single-EV level, shows high specificity against nontarget EVs, and tracks EV phenotypic changes induced by drugs. We further show that this technology can classify plasma samples (n = 111) between cancer patients and noncancer controls with accuracies >95%, enable accurate early diagnosis via machine learning, and monitor pre/post-surgery efficacy with higher accuracy over routine clinical serum markers. This bubble-driven one-step EV assay provides a promising wash-free quantitative tool to enable clinical precision liquid biopsies.
{"title":"Electric Field-Resistant Bubble-Enhanced Wash-Free Profiling of Extracellular Vesicle Surface Markers","authors":"Yuyuan Zhang, Xiaojie Qin, Zhanyu Xu, Weifeng Liu, Hao Lu, Yu Yang, Jie Yang, Xinchun Li, Yuanqing Zhang, Fan Yang","doi":"10.1021/acsnano.4c16353","DOIUrl":"https://doi.org/10.1021/acsnano.4c16353","url":null,"abstract":"Efficient profiling of circulating extracellular vesicles (EVs) benefits noninvasive cancer diagnosis and therapeutic monitoring, but is technically hampered by tedious isolation, multistep washing, and poor sensitivity. Here, we report multifunctional bubbles that enable self-separation, wash-free, single-step, and ultrasensitive profiling of EV surface markers in plasma samples for early diagnosis and treatment monitoring of lung cancer. In this assay, the buoyancy-dominated bubble is electric field-resistant, allowing EV-responsive release of electroactive probes for electrohydrodynamic nanoshearing force-enhanced hybridization, self-separation from the electrode interface for minimizing noise in electrochemical measurements, and one-step wash-free EV profiling. This assay achieves sensitivity near a single-EV level, shows high specificity against nontarget EVs, and tracks EV phenotypic changes induced by drugs. We further show that this technology can classify plasma samples (<i>n</i> = 111) between cancer patients and noncancer controls with accuracies >95%, enable accurate early diagnosis via machine learning, and monitor pre/post-surgery efficacy with higher accuracy over routine clinical serum markers. This bubble-driven one-step EV assay provides a promising wash-free quantitative tool to enable clinical precision liquid biopsies.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"27 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471021","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}
Pub Date : 2025-02-22DOI: 10.1016/j.jmst.2024.12.052
Muhammad Ismail, Seungjun Lee, Maria Rasheed, Chandreswar Mahata, Sungjun Kim
As the demand for advanced computational systems capable of handling large data volumes rises, nano-electronic devices, such as memristors, are being developed for efficient data processing, especially in reservoir computing (RC). RC enables the processing of temporal information with minimal training costs, making it a promising approach for neuromorphic computing. However, current memristor devices often suffer from limitations in dynamic conductance and temporal behavior, which affects their performance in these applications. In this study, we present a multilayered indium-tin-oxide (ITO)/ZnO/indium–gallium–zinc oxide (IGZO)/ZnO/ITO memristor fabricated via radiofrequency sputtering to explore its filamentary and nonfilamentary resistive switching (RS) characteristics. High-resolution transmission electron microscopy confirmed the polycrystalline structure of the ZnO/IGZO/ZnO active layer. Dual-switching modes were demonstrated by controlling the current compliance (ICC). In the filamentary mode, the memristor exhibited a large memory window (103), low-operating voltages (± 2 V), excellent cycle-to-cycle stability, and multilevel switching with controlled reset-stop voltages, making it suitable for high-density memory applications. Nonfilamentary switching demonstrated stable on/off ratios above 10, endurance up to 102 cycles, and retention suited for short-term memory. Key synaptic behaviors, such as paired-pulse facilitation (PPF), post-tetanic potentiation (PTP), and spike-rate dependent plasticity (SRDP) were successfully emulated by modulating pulse amplitude, width, and interval. Experience-dependent plasticity (EDP) was also demonstrated, further replicating biological synaptic functions. These temporal properties were utilized to develop a 4-bit reservoir computing system with 16 distinct conductance states, enabling efficient information encoding. For image recognition tasks, convolutional neural network (CNN) simulations achieved a high accuracy of 98.45% after 25 training epochs, outperforming the accuracy achieved following artificial neural network (ANN) simulations (87.79%). These findings demonstrate that the multilayered memristor exhibits high performance in neuromorphic systems, particularly for complex pattern recognition tasks, such as digit and letter classification.
{"title":"Exploitation of temporal dynamics and synaptic plasticity in multilayered ITO/ZnO/IGZO/ZnO/ITO memristor for energy-efficient reservoir computing","authors":"Muhammad Ismail, Seungjun Lee, Maria Rasheed, Chandreswar Mahata, Sungjun Kim","doi":"10.1016/j.jmst.2024.12.052","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.052","url":null,"abstract":"As the demand for advanced computational systems capable of handling large data volumes rises, nano-electronic devices, such as memristors, are being developed for efficient data processing, especially in reservoir computing (RC). RC enables the processing of temporal information with minimal training costs, making it a promising approach for neuromorphic computing. However, current memristor devices often suffer from limitations in dynamic conductance and temporal behavior, which affects their performance in these applications. In this study, we present a multilayered indium-tin-oxide (ITO)/ZnO/indium–gallium–zinc oxide (IGZO)/ZnO/ITO memristor fabricated via radiofrequency sputtering to explore its filamentary and nonfilamentary resistive switching (RS) characteristics. High-resolution transmission electron microscopy confirmed the polycrystalline structure of the ZnO/IGZO/ZnO active layer. Dual-switching modes were demonstrated by controlling the current compliance (<em>I</em><sub>CC</sub>). In the filamentary mode, the memristor exhibited a large memory window (10<sup>3</sup>), low-operating voltages (± 2 V), excellent cycle-to-cycle stability, and multilevel switching with controlled reset-stop voltages, making it suitable for high-density memory applications. Nonfilamentary switching demonstrated stable on/off ratios above 10, endurance up to 10<sup>2</sup> cycles, and retention suited for short-term memory. Key synaptic behaviors, such as paired-pulse facilitation (PPF), post-tetanic potentiation (PTP), and spike-rate dependent plasticity (SRDP) were successfully emulated by modulating pulse amplitude, width, and interval. Experience-dependent plasticity (EDP) was also demonstrated, further replicating biological synaptic functions. These temporal properties were utilized to develop a 4-bit reservoir computing system with 16 distinct conductance states, enabling efficient information encoding. For image recognition tasks, convolutional neural network (CNN) simulations achieved a high accuracy of 98.45% after 25 training epochs, outperforming the accuracy achieved following artificial neural network (ANN) simulations (87.79%). These findings demonstrate that the multilayered memristor exhibits high performance in neuromorphic systems, particularly for complex pattern recognition tasks, such as digit and letter classification.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"37 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471034","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}
Pub Date : 2025-02-22DOI: 10.1016/j.apsusc.2025.162783
Xiaohe Liu, Shuai Dong, Lei Liu, Fulin Wang, Xiao-Bo Chen, Jie Dong, Wenjiang Ding
This work aims to design and validate the synergistic effects of ultra-high frequency and Y2O3 nanoparticles on sustainable corrosion resistance of plasma electrolytic oxidation (PEO) upon Mg alloys. Incorporation of Y2O3 nanoparticles into PEO coatings was efficient, with preferential growth on coating surface and within discharge channels. In particular, a high concentration of Y2O3 nanoparticles, up to 20.6 at.%, was observed in PEO coating prepared at the highest frequency (20 kHz) pulse current. Y2O3-based compounds such as YOOH and Y(OH)3 present within PEO coating exhibit superior electrochemical stability, thereby enhancing overall stability and corrosion resistance.
{"title":"Plasma electrolytic oxidation coating with sustainable corrosion protection through addition of Y2O3 nanoparticles at ultra-high frequency pulse current","authors":"Xiaohe Liu, Shuai Dong, Lei Liu, Fulin Wang, Xiao-Bo Chen, Jie Dong, Wenjiang Ding","doi":"10.1016/j.apsusc.2025.162783","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.162783","url":null,"abstract":"This work aims to design and validate the synergistic effects of ultra-high frequency and Y<sub>2</sub>O<sub>3</sub> nanoparticles on sustainable corrosion resistance of plasma electrolytic oxidation (PEO) upon Mg alloys. Incorporation of Y<sub>2</sub>O<sub>3</sub> nanoparticles into PEO coatings was efficient, with preferential growth on coating surface and within discharge channels. In particular, a high concentration of Y<sub>2</sub>O<sub>3</sub> nanoparticles, up to 20.6 at.%, was observed in PEO coating prepared at the highest frequency (20 kHz) pulse current. Y<sub>2</sub>O<sub>3</sub>-based compounds such as YOOH and Y(OH)<sub>3</sub> present within PEO coating exhibit superior electrochemical stability, thereby enhancing overall stability and corrosion resistance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"85 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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