Progress in Natural Science: Materials International最新文献_第2页

Investigation on the thermal stability, crystallization kinetics and magnetic properties of Fe-Si-B-P-C-Nb amorphous alloys Fe-Si-B-P-C-Nb非晶合金的热稳定性、结晶动力学和磁性能研究

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.010

Yifan He, Rui Sun, Zilong Xu, Jingjing Huang, Songwei Wang, Chengying Tang

{"title":"Investigation on the thermal stability, crystallization kinetics and magnetic properties of Fe-Si-B-P-C-Nb amorphous alloys","authors":"Yifan He, Rui Sun, Zilong Xu, Jingjing Huang, Songwei Wang, Chengying Tang","doi":"10.1016/j.pnsc.2025.03.010","DOIUrl":"10.1016/j.pnsc.2025.03.010","url":null,"abstract":"<div><div>This study examines the thermal stability, isothermal and non-isothermal crystallization kinetics, and soft magnetic properties of Fe-Si-B-P-C-Nb amorphous alloys. Phase transformations were analyzed using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Under non-isothermal conditions, activation energies, local activation energies and local Avrami exponents were calculated to investigate nucleation and growth mechanisms during crystallization. The results indicate that characteristic temperatures vary with the heating rate, while activation energy values confirm the superior thermal stability of the Fe<sub>82.8</sub>Si<sub>0.2</sub>B<sub>12</sub>P<sub>2.25</sub>C<sub>2.25</sub>Nb<sub>0.5</sub> alloy. During crystallization, local activation energy initially increases before reaching a peak and subsequently decreasing. The local Avrami exponent further suggests that crystallization in both amorphous ribbons is predominantly governed by three-dimensional growth with fluctuating nucleation rates. Additionally, the isothermal crystallization kinetics of the Fe<sub>82.8</sub>Si<sub>0.2</sub>B<sub>12</sub>P<sub>2.25</sub>C<sub>2.25</sub>Nb<sub>0.5</sub> amorphous ribbon were analyzed to deepen our understanding of the crystallization mechanisms and provide theoretical insights for optimizing material properties. By fine-tuning annealing parameters, the crystallization behavior can be controlled to achieve different crystallized volume fractions, thereby developing nanocrystalline materials with enhanced soft magnetic properties. Specifically, the saturation magnetization flux density (<em>B</em><sub><em>s</em></sub>) reached 1.79 T, while the coercivity (<em>H</em><sub><em>c</em></sub>) was as low as 5.2 A/m.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 586-594"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366309","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}

引用次数: 0

Li-Cu alloy with A preferred single crystal orientation (110) plane for inhibiting dendrite growth in anode-free lithium metal batteries 具有优选单晶取向（110）平面的Li-Cu合金，用于抑制无阳极锂金属电池中的枝晶生长

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.011

Peisong Sun , Zhiyu Ding , Zhiqiang Li , Xin Li , Hua Cheng , Yuxiang Guo , Dawei Luo

{"title":"Li-Cu alloy with A preferred single crystal orientation (110) plane for inhibiting dendrite growth in anode-free lithium metal batteries","authors":"Peisong Sun , Zhiyu Ding , Zhiqiang Li , Xin Li , Hua Cheng , Yuxiang Guo , Dawei Luo","doi":"10.1016/j.pnsc.2025.03.011","DOIUrl":"10.1016/j.pnsc.2025.03.011","url":null,"abstract":"<div><div>A formidable challenge to enhance the cycle performance of Anode-Free Lithium Metal Batteries (AFLMBs) is to suppress the uncontrollable growth of Li dendrites. Preferred orientation is an effective solution to induce Li<sup>+</sup> uniform deposition, however, there is a dearth of adjustment methods in anode-free lithium metal batteries. Herein, a lithium-copper (LiCu<sub>x</sub>) alloy current collector was obtained, in which the lithium metal deposition on the current collector was aligned with the (110) single crystal plane, thereby facilitating the formation of dendrite free lithium deposits. The experimental results show that low-temperature alloying followed by an annealing treatment enables stable alloying of Li and Cu and induces the formation of (110) crystal plane. Consequently, the LiCu<sub>x</sub>-250 alloy exhibits a stable lithium deposition/stripping more than 1100 h with a high Coulombic efficiency (98.42 %). Furthermore, the cycling performance of the LiFePO<sub>4</sub> full cell is markedly enhanced in comparison to that of bare copper. This work provides an important reference for solving the problem of lithium dendrites in anode-free lithium metal batteries.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 595-601"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366310","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}

引用次数: 0

Preparation of gold mesh transparent electrodes by femtosecond laser ablation 飞秒激光烧蚀法制备金网透明电极

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.02.013

Zifeng Zhang, Bing Xu, Qilu Ye

引用次数: 0

Machine learning-assisted optimization of element ratios in high-entropy alloys for hydrogen evolution reaction 机器学习辅助下的高熵合金析氢反应元素比优化

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.05.001

Zijun Yang , Qi Yin , Zexiang Yin , Yingmei Bian , Heng Zhao , Beijia Chen , Yuan Liu , Yang Wang , Yida Deng , Haozhi Wang

{"title":"Machine learning-assisted optimization of element ratios in high-entropy alloys for hydrogen evolution reaction","authors":"Zijun Yang , Qi Yin , Zexiang Yin , Yingmei Bian , Heng Zhao , Beijia Chen , Yuan Liu , Yang Wang , Yida Deng , Haozhi Wang","doi":"10.1016/j.pnsc.2025.05.001","DOIUrl":"10.1016/j.pnsc.2025.05.001","url":null,"abstract":"<div><div>As high-entropy alloys (HEAs) are widely applied in energy conversion and catalysis, efficiently and accurately designing HEAs with excellent catalytic performance has become a key challenge in research. Traditional HEAs design methods rely mainly on experience and extensive experiments, which are low in efficiency and high in cost. To overcome these challenges, density functional theory (DFT) calculations and machine learning (ML) methods have gradually been applied to the performance prediction and design of HEAs. We propose the “Differentiated Feature” method to train high-precision Light Gradient Boosting Machine (LGBM) models to predict the catalytic performance of Fe<sub>a</sub>Co<sub>b</sub>NicCu<sub>d</sub>Mo<sub>e</sub> HEAs (0.18 < a, b, c, d, e < 0.23, a+b + c + d + e = 1) in the hydrogen evolution reaction (HER). By combining DFT calculation results with machine learning models, we successfully identify Fe<sub>0.222</sub>Co<sub>0.185</sub>Ni<sub>0.185</sub>Cu<sub>0.203</sub>Mo<sub>0.203</sub> HEAs with the best HER performance. Comparing the prediction results with experimental and DFT calculation data further validates the effectiveness of this method in predicting HER performance. This study provides new insights into the design of HEAs and accelerates the development of high-performance HEAs.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 631-637"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366257","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}

引用次数: 0

Orientation-dependent deformation and pop-in behavior in 3C-SiC 3C-SiC的取向依赖性变形和弹出行为

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.003

Junquan Huang , Zihao Lin , Yujun Chen , Song Zhao , Tianye Jin , Junyun Chen , Hui Li , Anmin Nie , Yongjun Tian

{"title":"Orientation-dependent deformation and pop-in behavior in 3C-SiC","authors":"Junquan Huang , Zihao Lin , Yujun Chen , Song Zhao , Tianye Jin , Junyun Chen , Hui Li , Anmin Nie , Yongjun Tian","doi":"10.1016/j.pnsc.2025.03.003","DOIUrl":"10.1016/j.pnsc.2025.03.003","url":null,"abstract":"<div><div>Understanding the relationship between crystal orientation and deformation behavior is critical for optimizing the mechanical performance of 3C-SiC in advanced applications. Here, the effect of crystal orientation on elasto-plastic deformation behavior in 3C-SiC was systematically studied using nanoindentation experiments, high-resolution transmission electron microscopy (HRTEM), and molecular dynamics (MD) simulations. Pop-in events were experimentally observed on both the (001) and (111) crystallographic planes, with the (111) plane exhibiting a higher critical pop-in load than the (001) plane. Nanoindentation tests further revealed that the (111) plane has a higher elastic modulus and nanohardness compared to the (001) plane. HRTEM analysis showed that the pop-in behavior is primarily governed by dislocation slip activity. Dislocation slip on the {111} slip plane was observed beneath the indentation for both orientations, while additional dislocation slip on the {001} slip plane, characteristic of edge dislocations, was noted for the (111) plane. MD simulations confirmed similar dislocation activity and revealed amorphization in regions of high stress concentration. Amorphization was further shown to occur within shear band zones in both crystallographic planes.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 541-546"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366304","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}

引用次数: 0

Enhanced broadband near-infrared luminescence via phase engineering of Cr3+-doped crystals 通过相位工程增强Cr3+掺杂晶体的宽带近红外发光

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.009

Shuaiyu Liu , Xiaoya Cui , Ke Su , Xin Pan , Yujia Wang , Lan Yao , Qiaoling Li , Lefu Mei

{"title":"Enhanced broadband near-infrared luminescence via phase engineering of Cr3+-doped crystals","authors":"Shuaiyu Liu , Xiaoya Cui , Ke Su , Xin Pan , Yujia Wang , Lan Yao , Qiaoling Li , Lefu Mei","doi":"10.1016/j.pnsc.2025.03.009","DOIUrl":"10.1016/j.pnsc.2025.03.009","url":null,"abstract":"<div><div>As near-infrared spectroscopy technology is increasingly applied in fields such as biomedicine, food detection, and night vision, the demand for efficient near-infrared light sources is growing rapidly. However, traditional light sources, such as tungsten-halogen lamps and supercontinuum lasers, are hindered by low energy efficiency and bulky designs, limiting their suitability for advanced optical applications. Fluoride-based materials have attracted attention due to their low phonon energy and excellent optical transparency, making them promising candidates for next-generation light sources. Herein, cryolite-structured fluorides were synthesized to investigate their potential as efficient near-infrared emitters. Micron-sized Na<sub>3</sub>Sc<sub>1-x</sub>F<sub>6</sub>: xCr<sup>3+</sup> and K<sub>y</sub>Na<sub>3-y</sub>ScF<sub>6</sub>: 6 %Cr<sup>3+</sup> crystals were prepared via a hydrothermal method. The influence of Cr<sup>3+</sup> doping concentration and K<sup>+</sup> substitution on crystal structure and luminescent performance were systematically explored. Cr<sup>3+</sup> doping was found to induce lattice contraction and stabilize an octahedral crystal field, resulting in broadband near-infrared emission. Additionally, K<sup>+</sup> substitution induces a phase transition, further enhancing luminescence and significantly extending fluorescence lifetimes. This work reveals the coupled effects of dopant concentration and structural modification in optimizing luminescent behavior. These findings provide valuable insights and theoretical guidance for the rational design and development of efficient near-infrared LED light sources, addressing essential challenges in advanced optical techniques.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 578-585"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366308","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}

引用次数: 0

MXene-carbon quantum dot hybrid memristor with progressive conductance tuning for artificial synaptic application 用于人工突触的渐进式电导调谐mxene -碳量子点混合忆阻器

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.001

Chunyan Shi , Yixiang Li , Zheng Xu , Shijie Chen , Xinli Cheng , Xiaojia Shi , Fangchao Li , Hai Chi , Cheng Zhang , Jahangeer Ahmed , Chunlan Ma , Wei Tian , Yang Li

{"title":"MXene-carbon quantum dot hybrid memristor with progressive conductance tuning for artificial synaptic application","authors":"Chunyan Shi , Yixiang Li , Zheng Xu , Shijie Chen , Xinli Cheng , Xiaojia Shi , Fangchao Li , Hai Chi , Cheng Zhang , Jahangeer Ahmed , Chunlan Ma , Wei Tian , Yang Li","doi":"10.1016/j.pnsc.2025.03.001","DOIUrl":"10.1016/j.pnsc.2025.03.001","url":null,"abstract":"<div><div>MXenes are emerging two-dimensional (2D) nanomaterials comprising multiple atomic layers of transition metal carbides/nitrides/carbonitrides. However, due to the metallic analogous conductivity, their intrinsic application in electronic devices is restricted. In this work, it is discovered that the straightforward surface modification of MXene holds promise for extending its functionality into the semiconductor field. The zero-dimensional carbon quantum dots (0D-CDs) are designed and adopted to allow the surface modification of MXene. The uniformly distributed CDs are introduced to function as charge storage elements, thereby enhancing charge transport process, reducing power consumption, and improving stability of MXene-based electronics. Notably, the CDs-modified MXene memristor exhibits outstanding bidirectional tunable memristive performance and replicates synaptic plasticity behavior, which facilitates the development of electronic synapses. This study unveils the potential of applying MXene for high-performance memristors through CDs modulation strategy, and provides an effective pathway for expanding the metallic conductive 2D nanomaterials into non-volatile memory and artificial synapses.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 526-532"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366219","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}

引用次数: 0

Deformation and dynamic recrystallization behavior during hot compression of Incoloy 028 alloy incoly 028合金热压缩变形及动态再结晶行为

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.013

Zhiqiang Yu , Rui Wang , Leifeng Tuo , Yong Hu , Yan Kang , Jing Fan , Jürgen Eckert , Zhijie Yan

{"title":"Deformation and dynamic recrystallization behavior during hot compression of Incoloy 028 alloy","authors":"Zhiqiang Yu , Rui Wang , Leifeng Tuo , Yong Hu , Yan Kang , Jing Fan , Jürgen Eckert , Zhijie Yan","doi":"10.1016/j.pnsc.2025.03.013","DOIUrl":"10.1016/j.pnsc.2025.03.013","url":null,"abstract":"<div><div>The present study investigates the deformation and dynamic recrystallization (DRX) phenomena of Incoloy 028 alloy during hot deformation through both experimental and simulation approaches. The hot compression experiments were undertaken within the temperatures range of 1223 K–1473 K coupled with strain rates of 0.1 s<sup>−1</sup> to 50 s<sup>−1</sup>. The constitutive equations and the model of dynamic recrystallization for Incoloy 028 alloy were quantitatively constructed according to the hot compression experiments. The results show that flow curves follow a similar trend with an initial increase and followed by a smooth decrease or a plateau. The DRX fraction was found to increase with the deformation temperature, and it were in good agreement with the optical microscopy (OM) analysis, confirming the accuracy of the DRX model. Furthermore, the deformed specimen was partitioned into three regions (center, bulge, and end regions) based on the inhomogeneous distribution of stresses and strains during hot compression, and the DRX fractions in different deformation regions are with a quite difference, which were also confirmed by OM analysis.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 602-615"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366254","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}

引用次数: 0

The effect of the interface structure on the interfacial bonding strength of Ti/Al clad plates 界面结构对Ti/Al复合板界面结合强度的影响

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.006

Qiaolong Ji , Yanbin Li , Peihao Ye , Wujing Fu , Guojian Cao , Qihang Han , Xuewen Li , Hao Wu , Guohua Fan

{"title":"The effect of the interface structure on the interfacial bonding strength of Ti/Al clad plates","authors":"Qiaolong Ji , Yanbin Li , Peihao Ye , Wujing Fu , Guojian Cao , Qihang Han , Xuewen Li , Hao Wu , Guohua Fan","doi":"10.1016/j.pnsc.2025.03.006","DOIUrl":"10.1016/j.pnsc.2025.03.006","url":null,"abstract":"<div><div>The formation of a thick Al<sub>3</sub>Ti layer at the Ti/Al interface during high-temperature annealing reduces the interfacial bonding strength of Ti/Al clad plates. In this study, the Ti/Al clad plates were fabricated using hot rolling combined with low-temperature diffusion annealing, resulting in the formation of an Al<sub>3</sub>Ti layer with nanoscale thickness. The multiscale structure of the Ti/Al interface was comprehensively investigated. We found that the thickness of Al<sub>3</sub>Ti layer was formed approximately 104 nm after annealing. Compared to the rolled Ti/Al clad plate, the interfacial bonding strength of the annealed Ti/Al clad plate increased from 164.8 MPa to 191.9 MPa. The interfacial structure transferred from an incoherent Ti/Al interface to a combination of coherent Ti/Al<sub>3</sub>Ti and semi-coherent Al/Al<sub>3</sub>Ti interface. Such an interface structure significantly enhanced the interfacial bonding strength. Furthermore, the digital image correlation (DIC) results revealed that the coherent Ti/Al<sub>3</sub>Ti and semi-coherent Al/Al<sub>3</sub>Ti interfaces alleviated localized strain concentration during shear deformation, thereby facilitating the effective strain transfer to the Ti/Al substrate. These findings provide a novel strategy for developing Ti/Al clad plates with superior interfacial bonding strength.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 568-577"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366307","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}

引用次数: 0

Trace Mg2+ doping enhances structural stability of single-crystal layered oxides for sodium-ion batteries 微量Mg2+掺杂提高了钠离子电池单晶层状氧化物的结构稳定性

IF 4.8 2区材料科学

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI: 10.1016/j.pnsc.2025.03.002

Xianzhe Han, Xiaomei Li, Ruiyun Chai, Shun Wang, Yifei Yuan, Yanshuai Li

{"title":"Trace Mg2+ doping enhances structural stability of single-crystal layered oxides for sodium-ion batteries","authors":"Xianzhe Han, Xiaomei Li, Ruiyun Chai, Shun Wang, Yifei Yuan, Yanshuai Li","doi":"10.1016/j.pnsc.2025.03.002","DOIUrl":"10.1016/j.pnsc.2025.03.002","url":null,"abstract":"<div><div>Sodium-ion batteries (SIBs) have emerged as a promising alternative to lithium-ion batteries due to the abundance and low cost of sodium resources. However, the structural instability of P2-type layered oxides during cycling remains a significant challenge, limiting their practical application. Single-crystal materials, with their highly ordered atomic structure and superior electronic and mechanical properties, are pivotal for the development of high-performance SIBs. In this study, we optimize the electrochemical performance of P2-type single-crystal layered oxides by trace doping with Mg<sup>2+</sup>, carefully preserving the inherent single-crystal structure. Mg<sup>2+</sup> doping not only stabilizes the P2 phase and mitigates detrimental phase transitions, but also enhances Na<sup>+</sup> diffusion kinetics by subtly expanding the interplanar spacing without disrupting the single-crystal integrity. We demonstrate that trace Mg<sup>2+</sup> doping improves the structural and electrochemical properties, resulting in superior cycling stability and rate capability. NMCMg<sub>0.05</sub> maintains 83.7 % of its initial capacity after 1000 cycles at 5 C, while full-cell tests with a hard carbon anode show 75.0 % capacity retention after 300 cycles and an energy density of 124.1 Wh·kg<sup>−1</sup>. This work underscores the critical role of single-crystal engineering and trace doping in enhancing the stability and performance of SIB cathodes, offering a pathway for next-generation, high-performance sodium-ion batteries.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":"35 3","pages":"Pages 533-540"},"PeriodicalIF":4.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366390","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}

引用次数: 0