Rare Metals最新文献

{"title":"A high-voltage tolerance gel polymer electrolyte functioned by surface dielectric layer enabling durable supercapacitors","authors":"Yuge Bai,&nbsp;Yuanyuan Feng,&nbsp;Kaiming Wang,&nbsp;Yuting Yin,&nbsp;Nan Li,&nbsp;Jianlin Chen,&nbsp;Bin Zhao,&nbsp;Fei Shen,&nbsp;Hao Chen,&nbsp;Fan Zhang,&nbsp;Xiaogang Han","doi":"10.1007/s12598-025-03370-3","DOIUrl":"10.1007/s12598-025-03370-3","url":null,"abstract":"<div><p>Immense attention has been focused on developing supercapacitors in the field of energy storage by virtue of their exceptional power density, extended cycling stability and operational safety. However, traditional liquid electrolytes pose severe challenges in response to leakage, high volatility and low electrochemical stability issues. To address these problems, we have developed a novel composite polymer membrane for gel polymer electrolytes (GPEs). This membrane features an internal fibrous framework composed of shape-memory polymers, while surface dielectric layers of PVDF-HFP cross-linked with modified TiO₂ nanoparticles are constructed on both sides of the framework. This configuration modulates the Stern layer potential gradient and diffuse layer ionic distribution through dielectric polarization, thereby suppressing electrolyte decomposition at high voltages, mitigating side reactions and facilitating ionic conduction. The resultant quasi-solid-state supercapacitor demonstrates excellent electrochemical stability at a voltage of 3.5 V, achieving an energy density of 43.87 Wh kg⁻¹, with a high-power density of 22.66 kW kg⁻¹ along with exceptional cyclic stability and mechanical flexibility. The synergistic structural design offers a safe and efficient energy harvesting solution for wearable electronic devices and portable energy storage systems.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6185 - 6198"},"PeriodicalIF":11.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810802","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":"Highly efficient non-enzyme glucose sensing by multi-component CuCoNiFeSi alloy with feather-like CuxO","authors":"Jianwu Wen,&nbsp;Shuang-Qin Chen,&nbsp;Xindong Zhu,&nbsp;Xiaochan Wu,&nbsp;Hailong Peng,&nbsp;Bingbing Li,&nbsp;He Zhu,&nbsp;Tao Feng,&nbsp;Si Lan","doi":"10.1007/s12598-025-03401-z","DOIUrl":"10.1007/s12598-025-03401-z","url":null,"abstract":"<div><p>Extensive research focuses on developing cost-effective, high-performance electrochemical non-enzyme glucose sensors, particularly using nanocomposites of metal oxides and multi-component alloys. In this paper, a batch of nano-flaky Cu_<i>x</i>O decorated CuCoNiFeSi (Cu_<i>x</i>O@Cu/Fe) and CuCoNiSi (Cu_<i>x</i>O@Cu) electrode was developed by melt-spinning following by anodization. According to the results, the sensitivity of Cu_<i>x</i>O@Cu/Fe-25/35 for glucose detection in the lower (0–1 mM) and higher region (1–15 and 15–21 mM) is 2.544, 1.51 and 0.64 mA mM⁻¹ cm⁻², respectively. The limit of detection (LOD) was estimated to be 0.88 μM (signal noise ratio (<i>S</i>/<i>N</i>) = 3). Furthermore, the Cu_<i>x</i>O@Cu/Fe-25/35 possessed various merits, such as excellent selectivity, good reusability, acceptable reproducibility, satisfying long-term stability, and high tolerance to chloride ions. The enhanced performances of the Cu_<i>x</i>O@Cu/Fe-25/35 electrodes are attributable to the feather-like Cu_<i>x</i>O and synergistic effect between Cu_<i>x</i>O and Ni(Fe, Co)₃Si₂. The work provides a new pathway for detecting all glucose density by electrochemical non-enzymatic glucose sensor.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6471 - 6482"},"PeriodicalIF":11.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810842","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":"Defectizing high-entropy oxide with the introduction of Se to facilitate the kinetics for highly cycle-stable lithium–sulfur batteries","authors":"Wen-Xu Li,&nbsp;Wei-Ran Wang,&nbsp;Dan Li,&nbsp;Qi-Fu Jin,&nbsp;Jin-Bao Gao,&nbsp;Jian-Xun Zhao,&nbsp;Qing-Cheng Liang,&nbsp;Qing-Bao Zhang,&nbsp;Peng Chen","doi":"10.1007/s12598-025-03390-z","DOIUrl":"10.1007/s12598-025-03390-z","url":null,"abstract":"<div><p>As a novel material, high-entropy compounds have attracted extensive attention in the field of lithium–sulfur battery host materials due to their diverse elemental composition with a wide range of properties. The ability to effectively mitigate the shuttle effect of lithium polysulfides and catalyze the bidirectional conversion of Li₂S₂/Li₂S is crucial to enhance the overall performance of the battery. In this study, a unique sulfur host nanosized high-entropy material comprising selenium-doped HEO (AlCrFeCoNi)₃O_4-x-Se_x is fabricated using an in situ thermal reduction and selenylation method. In the high-entropy compounds, the introduction of Se causes that the generation of oxygen vacancies during the lattice distortion serves as ion transfer pathway and the formation of M-Se bonds provides a high adsorption capability for LiPSs. Moreover, the polymetallic cooperative high-entropy nanoparticles also provide numerous active sites favoring redox kinetics of the sulfur electrode. The resulting selenium-doped HEO (AlCrFeCoNi)₃O_4-<i>x</i>-Se_<i>x</i> not only enhances discharge capacity but also maintains excellent capacity cycling stability. As a result, the HEO-Se/S composite exhibits a specific capacity of 1233.9 mAh g⁻¹ at 0.1C and experiences minimal capacity fading at a rate of 0.038% per cycle over 500 cycles at 0.2C, while host materials with sulfur loading of 4.33 mg cm⁻² and E/S ratio of 5.88 μL mg⁻¹ exhibit excellent capacity retention after 100 cycles at 0.2C. This work offers new insights into synthesizing high-entropy nanomaterials for improving the electrochemical performance of Li–S batteries.</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":"6053 - 6068"},"PeriodicalIF":11.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810829","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":"Manipulating the metal–oxygen covalency through diminishing d-p band center difference for rechargeable zinc-air batteries","authors":"De-Xuan Huang,&nbsp;Jian-Wei Zhao,&nbsp;Xue-Lei Hu,&nbsp;Tong Liu","doi":"10.1007/s12598-025-03373-0","DOIUrl":"10.1007/s12598-025-03373-0","url":null,"abstract":"<div><p>Transition metal oxides have garnered significant attention as electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). However, their sluggish reaction kinetics and poor stability hinder commercial applications. Herein, we report the synthesis of a bimetallic cobalt manganese oxide, Co_0.99Mn_2.01O₄ (CMO), synthesized via a hydrothermal technique, which serves as a highly efficient bifunctional ORR/OER electrocatalyst owing to its impressive half-wave potential of 0.767 V and low overpotential of 1.677 V at 10 mA cm⁻². Theoretical calculations revealed that the d-band centers of Co 3d and Mn 3d in CMO, located at tetrahedral and octahedral sites, are positioned near the Fermi level, facilitating the adsorption of electrocatalytic intermediates. Furthermore, the distance between the Co 3d and O 2p band centers in CMO is smaller than that in Co₃O₄, and the distance between the Mn 3d and O 2p band centers in CMO is shorter than that in Mn₂O₃, indicating that the Co–O and Mn–O bonds in CMO exhibit greater covalency, significantly enhancing ORR/OER activity. Notably, CMO serves as an advanced air electrode material for rechargeable zinc-air batteries (ZABs), demonstrating improved charge–discharge performance with a low voltage gap of 0.87 V at 5 mA cm⁻², high peak power density of 124 mW cm⁻², and excellent cycle stability of over 540 h at 5 mA cm⁻². This superior ORR/OER activity, combined with the simple material combination, makes CMO a promising catalyst for rechargeable ZABs.</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":"6140 - 6151"},"PeriodicalIF":11.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810828","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":"d-orbital charge density regulation of SiOx/RuCoOx nanoparticles to boost water splitting in acidic media","authors":"Ting Zhu,&nbsp;Yu-Hao Wang,&nbsp;Teng Sun,&nbsp;Ye-Can Pi,&nbsp;Xiao-Dong Pi,&nbsp;Jun Xu,&nbsp;Kun-Ji Chen","doi":"10.1007/s12598-025-03262-6","DOIUrl":"10.1007/s12598-025-03262-6","url":null,"abstract":"<div><p>Hydrogen has emerged as a promising clean energy carrier, and the development of cost-effective electrocatalysts that retain high activity under acidic media is crucial for advancing proton exchange membrane water electrolysis (PEMWE). Here, we propose the SiO_<i>x</i>/RuCoO_<i>x</i> nanoparticles (SiO_<i>x</i>/RuCoO_<i>x</i> NPs) as bifunctional electrocatalysts for efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under acidic media. The Ru-O-Si interface, along with charge transfer between Ru and Co, modulates the d-band electronic structure of the Ru site, achieving superior performance with a low HER overpotential of 18 mV at 10 mA·cm⁻² and a turnover frequency of 8.86 H₂·s⁻¹ at 100 mV. For OER, the overpotential is 217 mV at 10 mA·cm⁻². SiO_<i>x</i>/RuCoO_<i>x</i> NPs exhibit a cell voltage of 1.482 V at 10 mA·cm⁻² with an energy conversion efficiency of 83.0%. This work takes a significant step toward achieving efficient and cost-effective bifunctional electrocatalysts for water splitting, playing a critical role in the transition to clean energy technologies.</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":"6223 - 6231"},"PeriodicalIF":11.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810827","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":"Synergistic integration of hierarchical structure and oxygen vacancy engineering in core-shelled Ni and Zn co-doped Co3O4 microsphere for efficient detection of triethylamine gas","authors":"Wei Ding,&nbsp;Fengrui Zhu,&nbsp;Siyu Zheng,&nbsp;Yan Chao Yin,&nbsp;Qiqi Zhao,&nbsp;Jie Hu","doi":"10.1007/s12598-025-03351-6","DOIUrl":"10.1007/s12598-025-03351-6","url":null,"abstract":"<div><p>This work presents a hierarchical yolk-shell NiZn-Co₃O₄ sphere with abundant oxygen vacancy by utilizing structure optimization and composition regulation for efficient detection of triethylamine (TEA) gas. A comparative exploration of TEA gas sensing characterization for different Co₃O₄-based sensors is conducted systematically. The result shows that the sensor based on the NiZn–Co₃O₄ HCSS displays the highest sensing response of 42.5 at a working temperature of 180 °C. In particular, the NiZn–Co₃O₄ HCSS device possesses a fast response-recovery speed, excellent anti-humidity and outstanding long-term stability of up to 40 days to TEA gas. The improved TEA gas sensing property can be attributed to the intriguing hierarchical core–shell architecture and abundant oxygen vacancy induced by NiZn co-doping. Moreover, to study the sensing mechanism in detail, the adsorption behavior and charge transfer phenomenon between O_V–NiZn–Co₃O₄ (110) and TEA molecule is carried out by the density functional theory (DFT). This work demonstrates an outstanding performance of Ni and Zn co-doped hierarchical core–shell Co₃O₄ in TEA detection by combining theoretical and experimental investigations into mechanisms for optimized TEA gas molecule sensing.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6426 - 6441"},"PeriodicalIF":11.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810918","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":"Achieving negative thermal expansion over an extended temperature range in rare-earth-modified PbTiO3-based perovskites","authors":"Zhao Pan,&nbsp;Meng-Qi Ye,&nbsp;Yan Suo,&nbsp;Feng-Yi Zhou,&nbsp;Duo Wang,&nbsp;Jin Liu,&nbsp;Xu-Bin Ye,&nbsp;Jie Zhang,&nbsp;Mao-Cai Pi,&nbsp;Wei-Hao Li,&nbsp;Chao Chen,&nbsp;Nian-Peng Lu,&nbsp;Shogo Kawaguchi,&nbsp;Yao Shen,&nbsp;You-Wen Long","doi":"10.1007/s12598-025-03310-1","DOIUrl":"10.1007/s12598-025-03310-1","url":null,"abstract":"<div><p>Negative thermal expansion (NTE) is a notable physical property where a material’s volume decreases instead of increasing when heated. The identification of NTE materials is crucial for thermal expansion control engineering. Most NTE materials exhibit NTE only within a narrow temperature range, restricting their applications. Achieving NTE across a broad temperature range remains a significant challenge. This study developed a novel PbTiO₃-based system, (1-<i>x</i>)PbTiO₃–<i>x</i>BiLuO₃, incorporating rare-earth elements, using a distinctive high-pressure and high-temperature synthesis technique. We achieved NTE across a broad temperature range by coupling lattice (<i>c</i>/<i>a</i>) with ferroelectric order parameters. The incorporation of BiLuO₃ resulted in distinctive ferroelectric characteristics, including increased tetragonality, spontaneous polarization, and NTE over a broad temperature range. NTE over an extended temperature range has been achieved in 0.95PbTiO₃–0.05BiLuO₃ (<span>(overline{alpha }_{{text{V}}})</span> = −1.7 × 10^–5 K⁻¹, 300–840 K) and 0.90PbTiO₃–0.10BiLuO₃ (<span>(overline{alpha }_{{text{V}}})</span> = −1.4 × 10^–5 K⁻¹, 300–860 K), compared to pristine PbTiO₃ (<span>(overline{alpha }_{{text{V}}})</span> = −1.99 × 10^–5 K⁻¹, 300–763 K). The improved tetragonalities and broader NTE temperature range result from the strong hybridization of Pb/Bi–O and Ti/Lu–O atoms, as demonstrated by combined experimental and theoretical analyses, including high-energy synchrotron X-ray diffraction, Raman spectroscopy, and density functional theory calculations. This study introduces a novel example of NTE over a broad temperature range, highlighting its potential as a high-performance thermal expansion compensator. Additionally, it presents an effective method for incorporating rare-earth elements to achieve NTE in PbTiO₃-based perovskites across a wide temperature range.</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":"6494 - 6502"},"PeriodicalIF":11.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810904","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":"Structural engineering and high entropy effect toward improved mechano-electrochemical performance in lithium batteries","authors":"Hao-Yu Xu,&nbsp;Rui Wang,&nbsp;Feng-Feng Dong,&nbsp;Zheng Yang,&nbsp;Dong-Yun Li,&nbsp;Yang Xu,&nbsp;Hong-Liang Ge,&nbsp;Ming-Jian Yuan,&nbsp;Qiao-Ling Kang","doi":"10.1007/s12598-024-03211-9","DOIUrl":"10.1007/s12598-024-03211-9","url":null,"abstract":"<div><p>The inferior structure/electrochemistry stability due to the volume expansion and the less lithium storage active sites of transition metal oxide (TMO) are critical issue hindering their commercialization. The rational design to utilize the combined advantages of both structure and composition is a key strategy to address these challenges. Here, the (FeCoNiMnCrMg)₂O₃ high entropy oxide (HEO) with different morphologic structures are developed through integrating molecule and microstructure engineering. The morphologic structure of high entropy oxide transforms from solid spheres to multishelled core–shell spheres, and then to hollow spheres, which is governed by a thermally induced non-uniform shrinkage process coupled with Kirkendall effect diffusion due to the different calcination temperature. Even with the incorporation of various metallic ions, the high entropy oxide with a homogeneous single-phase solid solution maintained their shape and uniformity in size due to the ability of metal ions to coexist on the same lattice point. Benefiting from the meticulous control of both compositional and geometric factors, the hollow high entropy oxide exhibited a significantly high specific capacity (1722.1 mAh·g⁻¹ after 200 cycles at 1 A·g⁻¹) and long-life span for lithium storage (2158.7 mAh·g⁻¹ over 900 cycles at 4 A·g⁻¹). The collaborative lattice and consistent volume demonstrated in this study offer significant potential in directing the development of materials for advanced energy storage solutions.</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":"6040 - 6052"},"PeriodicalIF":11.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A promoted charge separation and transfer system from Fe single atoms and g-C3N4 for efficient photocatalysis","authors":"Shuai-Qi Zhang,&nbsp;Chun-Ling Ruan,&nbsp;Mei-Yin Chen,&nbsp;Cheng-Xiang Li,&nbsp;Min Dai,&nbsp;Zhi-Hui Yin,&nbsp;Cheng-Zhen Meng,&nbsp;Feng-Ming Situ,&nbsp;Yu-Wei Wu,&nbsp;Chun Hu,&nbsp;Xue-Ci Xing,&nbsp;Dong-Ming Zhang,&nbsp;Fan Li","doi":"10.1007/s12598-025-03352-5","DOIUrl":"10.1007/s12598-025-03352-5","url":null,"abstract":"<div><p>The introduction of metal single atoms (SAs) into semiconductors can effectively optimize their electronic configuration and enhance their photocatalytic properties. Therefore, it is crucial to clarify the corresponding principles and photocatalytic mechanisms for efficient and sustainable photocatalytic water remediation systems. Herein, a promising Fe single-atom photocatalyst (Fe_SA-CN) is obtained by anchoring Fe SAs in graphitic carbon nitride using a simple calcination strategy. Characterization and experimental results indicate that the modification of Fe SAs not only introduces a doping energy level, but also changes the valence band position, which expands the light absorption range, enhances the reduction ability of photogenerated electrons, and improves the separation and transfer of photogenerated charge carriers. Subsequently, contaminants adsorbed on the Fe_SA-CN surface trigger their oxidation removal by h⁺, and the H₂O₂ generated via two-electron direct reductions is converted in situ into ·OH by self-Fenton reaction for the synergistic contaminant degradation. In summary, Fe_SA-CN offers a promising pathway for single-atom photocatalysts in water remediation because of outstanding contamination removal efficiency, adaptability, and stability.</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":"6343 - 6353"},"PeriodicalIF":11.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810772","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":"Liquid metal composites for wearable healthcare sensors","authors":"Yiheng Qi,&nbsp;Bing Tan,&nbsp;Ruixuan Zhu,&nbsp;Dongchan Li,&nbsp;Shichang Liu,&nbsp;Xuxu Chen","doi":"10.1007/s12598-025-03335-6","DOIUrl":"10.1007/s12598-025-03335-6","url":null,"abstract":"<div><p>Wearable healthcare sensors can convert various physical signals, physiological signals, and electrophysiological activities of the human body into quantifiable resistive or capacitive changes for real-time health monitoring. Gallium (Ga)-based liquid metal (LM) has become an ideal candidate for wearable healthcare sensors due to its excellent physical and chemical properties, such as high stretchability, high electrical conductivity, self-healing and thermal conductivity, and good biocompatibility. However, the high surface tension of LM makes it difficult to be processed. After LM is modified, the LM surface tension is reduced to be able to form LM composites by tightly bonding with the elastomer matrix, and the LM composites exhibit enhanced electromechanical, thermal, and magnetic properties, among others. Here, we review the fabrication methods of LM composites; we describe in detail the composite forms of LM composites and recent advances in tensile, thermal and electrical conductivity, high dielectric constant and biocompatibility. Sensor devices (e.g., piezoelectric sensors, friction electric sensors, strain sensors, and magnetic sensors) of LM composites for wearable healthcare monitoring are summarized. Finally, challenges and opportunities of LM composites in the neighborhood of wearable healthcare sensors are also discussed.</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":"5980 - 6001"},"PeriodicalIF":11.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810702","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}