Rare Metals最新文献

{"title":"Origin of the magneto-volume effect in icosahedral Fe12X (X = Ti, Fe, Co, Ni) clusters","authors":"Jian Huang,&nbsp;Wen-Hui Fang,&nbsp;Jun-Nan Guo,&nbsp;Ji-Feng Tang,&nbsp;Yan-Yan Jiang,&nbsp;Li-Shu Zhang,&nbsp;Wei-Kang Wu,&nbsp;Hui Li","doi":"10.1007/s12598-025-03357-0","DOIUrl":"10.1007/s12598-025-03357-0","url":null,"abstract":"<p>The magneto-volume effect in Fe-based clusters, as a microscopic manifestation of the Invar effect in Fe–Ni alloys, has recently attracted increasing attention. However, a deeper understanding of the physical mechanism underlying the magneto-volume effect remains lacking. Here we employed first-principles calculations to investigate the ground-state properties and thermal expansion behaviors of icosahedral Fe₁₂X (X = Ti, Fe, Co, Ni) clusters. The spin arrangement of Fe₁₂X clusters is determined by the magnetic exchange interaction between atomic pairs. During thermal expansion, Fe₁₂X clusters exhibit different volume and magnetic moment behaviors. The magnetic moment attenuation induced by thermal excitation is a prerequisite for the emergence of the magneto-volume effect in Fe₁₂X clusters, consistent with the Invar anomaly observed in Fe–Ni alloys. The bonding characteristic analysis reveals that there are two competing bonding transitions in the process of the moment attenuation. The strengthening of the bonding state of the surface Fe–Fe bonds significantly exceeds the weakening of the bonding state of the Fe–X bonds, resulting in a contraction of the cluster volume, which is considered to be the explanation of the magneto-volume effect at the electronic structure level. Understanding the origin of the magneto-volume effect in magnetic metal clusters not only deepens the insight into the Invar effect but also provides theoretical guidance for its practical application.</p>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6388 - 6401"},"PeriodicalIF":11.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810703","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":"Leaf vein micronetwork engineering enhanced energy conversion strategy for C-band ultralight yet tunable microwave absorption","authors":"Chunyan Ding,&nbsp;Chengshuai Shao,&nbsp;Zhen Wang,&nbsp;Zhuoyang Li,&nbsp;Xue Guo,&nbsp;Xiaozhen Ren,&nbsp;Hongchang Pei,&nbsp;Songsong Wu,&nbsp;Qianqian Zhang,&nbsp;Chuncheng Wei,&nbsp;Long Xia,&nbsp;Bo Zhong,&nbsp;Guangwu Wen,&nbsp;Xiaoxiao Huang","doi":"10.1007/s12598-025-03360-5","DOIUrl":"10.1007/s12598-025-03360-5","url":null,"abstract":"<div><p>Lightweight materials with wide absorption capabilities, particularly in the C-band, have remained a challenge thus far. Recent research has indicated that effective absorption networks built by microfiber polarization loss can be a significant factor in increasing the effective absorption bandwidth (EAB). In this study, leaf vein-like carbon (LVC) was synthesized using an in situ blowing strategy. Taking inspiration from photosynthesis energy conversion mechanisms, a leaf veins-like hierarchical structure was created to establish an effective impedance-matching network and generate a high-density polarization region through leaf vein microfibers. This enhanced polarization relaxation effectively broadens the EAB of the LVC. At a low filling ratio of 6.3 wt%, the EAB of the LVC covers 80% of the C-band, as well as 100% of the X-band and Ku-band. Achieving such a wide EAB in the C-band, especially in the multi-band context, relies on impedance matching and optimized polarization relaxation. This work demonstrates the crucial role of leaf vein micronetwork engineering in enhancing the C-band absorption properties of carbon-based materials, thus providing a viable reference for the development of lightweight, broadband, and highly absorptive materials for electromagnetic applications.</p><h3>Graphical abstract</h3><p>The in situ blowing strategy was employed to achieve interface engineering in the hierarchically configuration leaf vein-like carbon (LVC) nanosheets, and the LVCs obtained could cover the 100% X-band, the entire Ku-band, and the 80% C-band at ultra-low filling (6.3 wt%).</p>\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":"6513 - 6530"},"PeriodicalIF":11.0,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810699","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":"Boosting NH4+ adsorption of Ti3C2Tx@S-V2O5@CNF nanofiber by S doping and heterostructure construction: local charge regulation","authors":"Hai-Yang Wang,&nbsp;Hao Luo,&nbsp;Miao-Miao Liang,&nbsp;Hao Ma,&nbsp;Du Lv,&nbsp;Fan Qu,&nbsp;Ying Yin,&nbsp;Yuan Zhou,&nbsp;Xu-Dong Zhang,&nbsp;Hai-Chao Zhao,&nbsp;Zong-Cheng Miao","doi":"10.1007/s12598-025-03325-8","DOIUrl":"10.1007/s12598-025-03325-8","url":null,"abstract":"<div><p>Aqueous ammonium ion battery (AAIB) is considered as a promising candidate for next-generation energy storage device, while the limited performance of cathode material retards its further development. Seeking novel materials and reveal the underlying energy storage reinforcement mechanism is necessary for promoting future commercial application of AAIB. Herein, a novel electrospun Ti₃C₂T_<i>x</i>@S-V₂O₅@CNF nanofiber is constructed by sulfur doping and Ti₃C₂T_<i>x</i> introduction strategy to exert the synergetic effect on NH₄⁺ storage capacity. Density functional theory calculations indicate that the induction of Ti₃C₂T_<i>x</i> can redistribute the internal charges of material, induce the downshift of the d-band center of V atoms and p-band center of S atoms to the Fermi level, thus the adsorption energy of NH₄⁺ is optimized. Electrochemical results show that the Ti₃C₂T_<i>x</i>@S-V₂O₅@CNF electrode displays high capacity of 576.2 mAh g⁻¹ at 0.5 A g⁻¹, long cycle life and superior rate performance. The assembled Ti₃C₂T_<i>x</i>@S-V₂O₅@CNF//PTCDI full cell also exhibits excellent electrochemical behavior including large specific capacity of 181 mAh g⁻¹ at 0.5 A g⁻¹, cycling stability of 10,000 cycles at 5 A g⁻¹ with no capacity decay, and good rate performance. This work gives insight into the NH₄⁺ storage capacity control by rational local charge regulation through S doping and heterostructure construction to facilitate electron transfer for AAIBs and other energy storage system.</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":"4642 - 4656"},"PeriodicalIF":11.0,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169837","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":"Unveiling the role of MoS2 hollow nanospheres on lignite-based carbon for enhanced sodium-ion battery performance","authors":"Xiao-Hui Ma,&nbsp;Jia-Hao Zhao,&nbsp;Rong-Ji Jiao,&nbsp;Muhammad Ahmad Mudassir,&nbsp;Xi-Min Xu,&nbsp;Yu Gao,&nbsp;Yun-Ying Liu,&nbsp;Wen-Xiu He,&nbsp;Jin-Long Cui,&nbsp;Xiao-Yu Zhao","doi":"10.1007/s12598-025-03315-w","DOIUrl":"10.1007/s12598-025-03315-w","url":null,"abstract":"<div><p>The two-dimensional (2D) layered material molybdenum disulfide (MoS₂) exhibits a special Mo-S-Mo sandwich structure with a rather large spacing, making it a promising candidate as an anode material for sodium storage applications. Unfortunately, the practical applications are limited by their intrinsically low electrical conductivity, significant volume alteration and severe particle agglomeration. In this study, we designed a new two-step solvothermal strategy to synthesize ultrathin nanosheet-assembled MoS₂ hollow nanospheres strongly located on lignite-based carbon (MoS₂/C) without any template. The ultrathin nanosheets assembled into hollow structures mitigated the volume changes of MoS₂ during the (dis)charge cycles, facilitated Na⁺ diffusion, and reduced the migration energy barrier within MoS₂. Lignite-based C enhances the electrical conductivity of MoS₂, prevents its aggregation, and alleviates mechanical stress during repeated (dis)charging. The resultant hollow spherical MoS₂/C composite exhibits outstanding cyclability and rate performance when used as an anode in sodium-ion batteries, as it delivers a high specific capacity of 515.8 mAh g⁻¹ after 1000 cycles at 1.0 A g⁻¹, with a 94.34% capacity retention rate. Even at a high current density of 20 A g⁻¹, a capacity of 431 mAh g⁻¹ can still be obtained after 2000 cycles. In particular, the initial Coulombic efficiency of the MoS₂ anode is markedly enhanced by the incorporation of lignite-based C.</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":"4801 - 4814"},"PeriodicalIF":11.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169786","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":"Defect-rich and prismatic-shaped vanadium oxynitride nanohybrids cathodes for high-rate aqueous zinc ion batteries","authors":"Jia-Qi Yu,&nbsp;Xiang Hu,&nbsp;Zhi-Dong Tian,&nbsp;Li-Na Wang,&nbsp;Guang-Fu Luo,&nbsp;Hong-Bing Zhan,&nbsp;Zhen-Hai Wen","doi":"10.1007/s12598-024-03173-y","DOIUrl":"10.1007/s12598-024-03173-y","url":null,"abstract":"<div><p>The development of appropriate cathode materials with stable structures and fast diffusion kinetics of zinc ions is crucial for aqueous zinc-ion batteries (AZIBs) but remains significantly challenging. Herein, the design and synthesis of defect-rich and prismatic-shaped nanohybrids composed of vanadium oxynitride nanoparticles confined in the porous nitrogen-doped carbon framework (VN_<i>x</i>O_<i>y</i>@NC) are reported. Its unique structural advantages, including enriched defect sites that effectively enhance electrical conductivity, accelerate charge transfer kinetics, and improve structural stability. Additionally, the introduction of structural defects in VN_<i>x</i>O_<i>y</i>@NC increases the adsorption energy and reduces the hopping barrier of Zn ion, as evidenced by density functional theory (DFT) calculations. The H⁺ and Zn²⁺ co-insertion/extraction mechanism was systematically validated by ex-situ X-ray diffraction and ex-situ X-ray photoelectron spectroscopy tests. Consequently, the VN_<i>x</i>O_<i>y</i>@NC//Zn batteries exhibit an exceptional capacity of 570.9 mAh·g⁻¹ at 0.2 A·g⁻¹, a superior rate capability of 446.7 mAh·g⁻¹ at 20 A·g⁻¹, and long cycling life. Furthermore, the corresponding quasi-solid-state battery delivers an ultra-high energy density of 271.9 Wh·kg⁻¹, demonstrating potential for practical applications. This work presents an effective structural and defect engineering strategy for designing advanced electrode materials with promising applications in AZIBs.</p><h3>Graphic 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":"6069 - 6080"},"PeriodicalIF":11.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810846","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":"Core–shell CoPt@C assembled hierarchical catalysts via CH4-deposition strategy for efficient overall water splitting","authors":"Zi-Ya Li,&nbsp;De-Ling Wang,&nbsp;Chao Zhang,&nbsp;Hai-Peng Wang,&nbsp;De-Lu Zhang,&nbsp;Gao-Qiang Zhao,&nbsp;Zhi-Guo Lv,&nbsp;Fu-Jin Sun","doi":"10.1007/s12598-025-03345-4","DOIUrl":"10.1007/s12598-025-03345-4","url":null,"abstract":"<div><p>This study, a core–shell CoPt@C assembled hierarchical catalyst (named CoPt@C) was prepared using a unique CH₄ deposition strategy for highly efficient overall water splitting. CoPt@C is composed of dense CoPt@C core–shell nanoparticles (NPs) and a minor proportion of curled CoPt@nanotubes (CoPt@CNTs). Moreover, by adjusting the CH₄ deposition time, the carbon shell thickness can be effectively regulated. Benefiting from the synergistic interaction between CoPt alloy and carbon shell, coupled with the high conductivity of the carbon shell, the overpotential of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) for CoPt@C is 15 and 120 mV at 10 mA cm⁻². In addition, CoPt@C requires only 1.58 V to achieve 10 mA cm⁻² for overall water splitting and maintains excellent stability over 80 h of continuous electrolysis. Density functional theory (DFT) calculations suggest that electrons transfer from the CoPt alloy NPs to the carbon shell, rendering the carbon shell electron-rich. Additionally, the hydrogen adsorption energy (Δ<i>G</i>_*H) and the rate-determining step (Δ<i>G</i>_*OOH) on CoPt@C are only −0.22 and 1.9 eV, respectively.</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":"6232 - 6245"},"PeriodicalIF":11.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810725","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":"Shining light on fillers uniform dispersion of PVDF/garnet composite electrolytes for high-performance solid-state Li batteries: fundamentals, progress and perspectives","authors":"Yi-Hui Liu,&nbsp;Fei Wang,&nbsp;Hao-Bo Wang,&nbsp;Chun-Yang Kong,&nbsp;Guang-Xin Wang,&nbsp;Xian-Ming Liu,&nbsp;Yong Liu","doi":"10.1007/s12598-025-03344-5","DOIUrl":"10.1007/s12598-025-03344-5","url":null,"abstract":"<div><p>Polyvinylidene fluoride (PVDF)/garnet composite polymer electrolytes (CPEs) have shown great potential in the development of solid-state lithium metal batteries (SSLMBs) due to their excellent flexibility, high ionic conductivity and superior mechanical strength. However, uneven dispersion of garnet fillers in CPEs would lead to deterioration of lithium metal batteries (LMBs) performance and severely limit their widespread application. Considering the rapidly growing research of addressing above-mentioned issue, herein, recent progress in the design and fabrication of uniformly dispersed fillers in PVDF/garnet CPEs for high-performance SSLMBs is summarized. We firstly analyze the mechanism for the aggregation of inorganic fillers, and provide a detailed introduction to the strategies for solving the uneven dispersion of nanoparticles in solid electrolytes. Moreover, we also comprehensively summarize their applications in PVDF/garnet electrolytes and their impact on the electrochemical performance of SSLMBs. Finally, the application challenges and future prospects of PVDF/garnet CPEs in SSLMBs were also proposed to promote their further development. It is anticipated that this review could inspire ongoing research interest in rational designing and fabricating novel CPEs for high-performance SSLMBs.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div><div><p>The\u0000recent progress in the design and fabrication of uniformly dispersed fillers in\u0000PVDF/garnet CPEs for high-performance SSLMBs is summarized, and their future\u0000prospects are proposed.</p></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"5957 - 5979"},"PeriodicalIF":11.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810724","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":"Research progress of rare earth (Ce, La, Sm)-based functional materials in catalytic CO2 reduction","authors":"Jing-Kun Hou,&nbsp;Jia-Hui Liu,&nbsp;Yu-Hao Liu,&nbsp;Qi-Hang Tian,&nbsp;Xi-Hao Wang,&nbsp;Bing-Han Wang,&nbsp;Li-Quan Jing,&nbsp;Cheng-Zhang Zhu,&nbsp;Hai-Tao Xu,&nbsp;Di Si","doi":"10.1007/s12598-025-03337-4","DOIUrl":"10.1007/s12598-025-03337-4","url":null,"abstract":"<div><p>Rare earth-based functional nanomaterials have wide applications in catalytic CO₂ reduction reaction (CO₂RR) due to their impressive performance. In particular, the superior oxygen storage and release ability of Ce⁴⁺/Ce³⁺ reversible pairs, the high coordination number and rich coordination geometry of lanthanide (La) metal ions and the unique stereoselectivity of samarium (Sm) reagents have aroused more and more interest among scientists. To enhance the catalytic activity of Ce, La, Sm (CLS)-based catalysts, recent developments of various modification strategies have been performed to promote the charge transfer and activation of CO₂. This review constructively discussed the synthesis of modified CLS-based materials and the corresponding applications in thermal catalytic CO₂RR, photocatalytic CO₂RR, and electrocatalytic CO₂RR. Finally, the current difficulties of these materials and further research on the modification of rare earth-based catalysts, as well as the potential future development have been identified.</p></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 8","pages":"5279 - 5300"},"PeriodicalIF":11.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144818","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":"Regulating peroxidase-mimic activity of iron oxide nanozymes through size modulation: electronic structure and specific surface area","authors":"Shuang-Shan Li,&nbsp;Fan Zhao,&nbsp;Hong-Yan Yu,&nbsp;Zheng-Tao Xu,&nbsp;Zeeshan Ali,&nbsp;Wang-Chang Li,&nbsp;Yao Ying,&nbsp;Liang Qiao,&nbsp;Jing-Wu Zheng,&nbsp;Juan Li,&nbsp;Sheng-Lei Che,&nbsp;Jing Yu","doi":"10.1007/s12598-025-03349-0","DOIUrl":"10.1007/s12598-025-03349-0","url":null,"abstract":"<div><p>Iron oxide nanoparticles (IONPs) with intrinsic peroxidase (POD)-mimic activity have gained significant attention as nanozymes. Reducing sizes of IONPs is the mostly applied strategy to boost their enzymatic activity due to their high specific surface areas. Herein, we synthesized a series of uniformly sized IONPs ranging from 3.17 to 21.2 nm, and found that POD activity of IONPs is not monotone increased by reducing their sizes, with the optimal size of 7.82 nm rather than smaller sized 3.17 nm. The reason for this unnormal phenomenon is that electronic structure also had great influence on POD activity, especially at the ultrasmall size region. Since Fe²⁺ are with higher enzymatic activity than Fe³⁺, 3.17 nm IONPs although have the largest specific surface area, are prone to be oxidized, which reduced their iron content and ratio of Fe²⁺ to Fe³⁺, and consequently decreased their POD activity. By intentionally oxidized 7.82 nm IONPs in air, POD activity was obviously reduced, illustrating electronic structure cannot be overlooked. At the larger sized region ranging from 7.82 to 21.2 nm, oxidation degree of IONPs is similar, and surface electronic structure had a negligible effect on POD activity, and therefore, POD activity is predominantly influenced by specific surface area. By using the optimized 7.82 nm IONPs, tumor growth was obviously inhibited, demonstrating their potential in cancer therapeutics. Our results reveal that the designing of nanozymes should comprehensively balance their influence of surface electronic structure and specific surface area.</p><h3>Graphic 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":"6375 - 6387"},"PeriodicalIF":11.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810843","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":"Flexible electrochromic zinc ion battery based on Prussian blue prepared by MXene-assisted in situ growth","authors":"Chenyu Song,&nbsp;Rongzong Zheng,&nbsp;Yingfen Li,&nbsp;Maofei Tian,&nbsp;Wenjun Wu,&nbsp;Yanbang Tang,&nbsp;Guangmin Zhou,&nbsp;Jiaojing Shao","doi":"10.1007/s12598-025-03350-7","DOIUrl":"10.1007/s12598-025-03350-7","url":null,"abstract":"<div><p>Traditional electrodes for flexible/wearable electrochromic zinc ion batteries (EC-ZIBs) are typically prepared using electrodeposition or hydrothermal methods, which suffer from poor adhesion, leading to significant performance degradation during repeated bending. In this paper, a Prussian blue electrode with MXene (MPB electrode)-assisted in situ growth was prepared by the two-dimensional-material-assisted in situ growth (TAIG) method. The MPB electrode, achieved through simple immersion, features a nanoparticle shape with strong bonding to the flexible substrate. This nanoparticle-shaped PB does not clog the pores of the nylon fibers and grows inside the nylon fibers, which ultimately shortens the ion channels, allowing short ion diffusion pathways, fast electrochemical kinetics, favorable electrolyte penetration and improved specific capacity. In the fabrication of EC-ZIB devices, the MPB cathode exhibits a high specific capacity of 197.2 mAh g⁻¹ at 2 A g⁻¹ and retains 79.7% of its capacity even with a tenfold increase in current density. Additionally, the MPB electrode demonstrates excellent electrochromic performance (yellow, green and blue) within the range of 0.5 to 1.8 V, with rapid switching time of only 2.2 s for coloring and 2.0 s for bleaching. Therefore, the MPB electrodes fulfill the requirements for multifunctional devices, allowing easy monitoring of energy storage levels through color changes, and showing potential applications in smart camouflage, wearable displays and other fields, promoting the development of flexible smart energy storage devices.</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":"6102 - 6114"},"PeriodicalIF":11.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810845","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}