Rare Metals最新文献

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Synergistic intermolecular hydrogen-bonded cross-linking and steric hindrance effects enabling pomegranate-type LMFP@C for Li+ storage 分子间氢键交联和立体阻碍效应的协同作用使石榴型 LMFP@C 可用于储存 Li+
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02914-3
Hui Li, Yun Luo, Shu-Zhe Yang, Sheng Guo, Zhe Gao, Jian-Ming Zheng, Ning Ren, Yu-Jin Tong, Hao Luo, Mi Lu
{"title":"Synergistic intermolecular hydrogen-bonded cross-linking and steric hindrance effects enabling pomegranate-type LMFP@C for Li+ storage","authors":"Hui Li,&nbsp;Yun Luo,&nbsp;Shu-Zhe Yang,&nbsp;Sheng Guo,&nbsp;Zhe Gao,&nbsp;Jian-Ming Zheng,&nbsp;Ning Ren,&nbsp;Yu-Jin Tong,&nbsp;Hao Luo,&nbsp;Mi Lu","doi":"10.1007/s12598-024-02914-3","DOIUrl":"10.1007/s12598-024-02914-3","url":null,"abstract":"<div><p>LiMn<sub><i>x</i></sub>Fe<sub>1−<i>x</i></sub>PO<sub>4</sub> is a promising cathode candidate due to its high security and the availability of a high 4.1 V operating voltage and high energy density. However, the poor electrochemical kinetics and structural instability currently hinder its broader application. Herein, inspired by the hydrogen-bonded cross-linking and steric hindrance effect between short-chain polymer molecules (polyethylene glycol-400, PEG-400), the pomegranate-type LiMn<sub>0.5</sub>Fe<sub>0.5</sub>PO<sub>4</sub>-0.5@C (P-LMFP@C) cathode materials with 3D ion/electron dual-conductive network structure were constructed through ball mill-assisted spray-drying method. The intermolecular effects of PEG-400 promote the spheroidization and uniform PEG coating of LMFP precursor, which prevents agglomeration during sintering. The 3D ion/electron dual-conductive network structure in P-LMFP@C accelerates the Li<sup>+</sup> transport kinetics, improving the rate performance and cycling stability. As a result, the designed P-LMFP@C has remarkable electrochemical behavior, boasting excellent capacity retention (98% after 100 cycles at the 1C rate) and rate capability (91 mAh·g<sup>−1</sup> at 20C). Such strategy introduces a novel window for designing high-performance olivine cathodes and offers compatibility with a range of energy storage materials for diverse applications.</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 1","pages":"147 - 157"},"PeriodicalIF":9.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738473","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}
引用次数: 0
Recent progress of Prussian blue analogues as cathode materials for metal ion secondary batteries 普鲁士蓝类似物作为金属离子二次电池阴极材料的最新进展
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02887-3
Xin-Yuan Fu, Lu-Lu Zhang, Cheng-Cheng Wang, Hua-Bin Sun, Xue-Lin Yang
{"title":"Recent progress of Prussian blue analogues as cathode materials for metal ion secondary batteries","authors":"Xin-Yuan Fu,&nbsp;Lu-Lu Zhang,&nbsp;Cheng-Cheng Wang,&nbsp;Hua-Bin Sun,&nbsp;Xue-Lin Yang","doi":"10.1007/s12598-024-02887-3","DOIUrl":"10.1007/s12598-024-02887-3","url":null,"abstract":"<div><p>With the rapid development of new energy and the high proportion of new energy connected to the grid, energy storage has become the leading technology driving significant adjustments in the global energy landscape. Electrochemical energy storage, as the most popular and promising energy storage method, has received extensive attention. Currently, the most widely used energy storage method is metal-ion secondary batteries, whose performance mainly depends on the cathode material. Prussian blue analogues (PBAs) have a unique open framework structures that allow quick and reversible insertion/extraction of metal ions such as Na<sup>+</sup>, K<sup>+</sup>, Zn<sup>2+</sup>, Li<sup>+</sup> etc., thus attracting widespread attention. The advantages of simple synthesis process, abundant resources, and low cost also distinguish it from its counterparts. Unfortunately, the crystal water and structural defects in the PBAs lattice that is generated during the synthesis process, as well as the low Na content, significantly affect their electrochemical performance. This paper focuses on PBAs’ synthesis methods, crystal structure, modification strategies, and their potential applications as cathode materials for various metal ion secondary batteries and looks forward to their future development direction.</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 1","pages":"34 - 59"},"PeriodicalIF":9.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738479","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}
引用次数: 0
Roll-to-roll fabrication of lithiophilic Sn-modified Cu mesh via chemical tin plating approach for long-cycling lithium metal batteries 通过化学镀锡方法辊对辊制造用于长循环锂金属电池的亲锂锡改性铜网片
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-22 DOI: 10.1007/s12598-024-02875-7
Ke-Xin Liu, Ran Tan, Zhong Zheng, Rui-Rui Zhao, Burak Ülgüt, Xin-Ping Ai, Jiang-Feng Qian
{"title":"Roll-to-roll fabrication of lithiophilic Sn-modified Cu mesh via chemical tin plating approach for long-cycling lithium metal batteries","authors":"Ke-Xin Liu,&nbsp;Ran Tan,&nbsp;Zhong Zheng,&nbsp;Rui-Rui Zhao,&nbsp;Burak Ülgüt,&nbsp;Xin-Ping Ai,&nbsp;Jiang-Feng Qian","doi":"10.1007/s12598-024-02875-7","DOIUrl":"10.1007/s12598-024-02875-7","url":null,"abstract":"<div><p>Lithium metal, with its exceptionally high theoretical capacity, emerges as the optimal anode choice for high-energy-density rechargeable batteries. Nevertheless, the practical application of lithium metal batteries (LMBs) is constrained by issues such as lithium dendrite growth and low Coulombic efficiency (CE). Herein, a roll-to-roll approach is adopted to prepare meter-scale, lithiophilic Sn-modified Cu mesh (Sn@Cu mesh) as the current collector for long-cycle lithium metal batteries. The two-dimensional (2D) nucleation mechanism on Sn@Cu mesh electrodes promotes a uniform Li flux, facilitating the deposition of Li metal in a large granular morphology. Simultaneously, experimental and computational analyses revealed that the distribution of the electric field in the Cu mesh skeleton induces Li inward growth, thereby generating a uniform, dense composite Li anode. Moreover, the Sn@Cu mesh-Li symmetrical cell demonstrates stable cycling for over 2000 h with an ultra-low 10 mV voltage polarization. In Li||Cu half-cells, the Sn@Cu mesh electrode demonstrates stable cycling for 100 cycles at a high areal capacity of 5 mAh·cm<sup>−2</sup>, achieving a CE of 99.2%. This study introduces a simple and large-scale approach for the production of lithiophilic three-dimensional (3D) current collectors, providing more possibilities for the scalable application of Li metal 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 1","pages":"81 - 94"},"PeriodicalIF":9.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738477","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}
引用次数: 0
Gelatinized starch as a low-cost and bifunctional binder enables shuttle-free aqueous zinc–iodine batteries 作为一种低成本双功能粘合剂,胶化淀粉可制成无梭锌碘水电池
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02916-1
Zheng-Tai Yu, Zong-Shuai Gong, Rui-Hang Wen, Ya-Jun Hou, Zhi-Qiang Luo, Zhi-Hao Yuan, Ning Zhang
{"title":"Gelatinized starch as a low-cost and bifunctional binder enables shuttle-free aqueous zinc–iodine batteries","authors":"Zheng-Tai Yu,&nbsp;Zong-Shuai Gong,&nbsp;Rui-Hang Wen,&nbsp;Ya-Jun Hou,&nbsp;Zhi-Qiang Luo,&nbsp;Zhi-Hao Yuan,&nbsp;Ning Zhang","doi":"10.1007/s12598-024-02916-1","DOIUrl":"10.1007/s12598-024-02916-1","url":null,"abstract":"<div><p>Rechargeable aqueous zinc–iodine (Zn–I<sub>2</sub>) batteries are widely regarded as a promising contender for energy-storage devices, due to their intrinsic safety, low cost, and high capacity. However, the severe shuttle effect of polyiodides and the large volume change of I<sub>2</sub> cathode induce severe capacity loss and poor electrochemical reversibility, hindering their commercial applications. Herein, we report that the low-cost gelatinized starch (G-starch) can be used as a bifunctional binder for Zn–I<sub>2</sub> batteries to circumvent the above problems simultaneously. Based on both calculation and experimental data, it is demonstrated that the double-helix structure of G-starch with both α-1,4- and α-1,6-glycosidic bonds can strongly interact with polyiodides to suppress the shuttle effect. Moreover, the G-starch with multiple hydrogen-bonded cross-linking networks exhibits a much-enhanced adhesion ability and can buffer the volume expansion of active materials. In contrast, the traditional carboxymethyl cellulose sodium-based aqueous binder lacks these capabilities. As a result, the G-starch binder enables the aqueous Zn–I<sub>2</sub> battery to achieve a high reversible capacity of 212.4 mAh·g<sup>−1</sup> at 0.2 A·g<sup>−1</sup> after 1000 cycles and ultralong-cycling life over 48,000 cycles with 135.4 mAh·g<sup>−1</sup> and 89.6% capacity retention at 2 A·g<sup>−1</sup>. This work develops a simple yet efficient strategy to construct high-performance Zn–I<sub>2</sub> 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":"43 12","pages":"6351 - 6361"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746067","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}
引用次数: 0
Lithium extraction from carbonate-rich Salt Lake brine using HBTA/TBP system 利用 HBTA/TBP 系统从富含碳酸盐的盐湖卤水中提取锂
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02760-3
Lian-Min Ji, Dong Shi, Xiao-Wu Peng, Shao-Lei Xie, Jin-Feng Li, Yu-Ze Zhang, Li-Cheng Zhang, Yong Niu, Gang Chen, Li-Juan Li
{"title":"Lithium extraction from carbonate-rich Salt Lake brine using HBTA/TBP system","authors":"Lian-Min Ji,&nbsp;Dong Shi,&nbsp;Xiao-Wu Peng,&nbsp;Shao-Lei Xie,&nbsp;Jin-Feng Li,&nbsp;Yu-Ze Zhang,&nbsp;Li-Cheng Zhang,&nbsp;Yong Niu,&nbsp;Gang Chen,&nbsp;Li-Juan Li","doi":"10.1007/s12598-024-02760-3","DOIUrl":"10.1007/s12598-024-02760-3","url":null,"abstract":"<div><p>China's salt lakes hold significant lithium reserves, yet the development of low-concentration lithium resources from the carbonate brines in Tibet is a pressing matter. Alkyl β-diketones extractants are capable of efficiently extracting lithium from alkaline solutions using an extraction method, but its optimized extraction prerequisite is an extreme alkaline solution with higher pH. This research introduces a process for the effective extraction and separation of lithium and sodium from the carbonate brine of Jieze Caka Salt Lake, utilizing trifluorinated β-biketone HBTA (4,4,4-trifluoro-1-phenyl-1,3-butanedione)–TBP (tributyl phosphate)/kerosene system. A three-stage extraction yielded 98.06% of Li<sup>+</sup> and 1.69% of Na<sup>+</sup> from the initial brine with a lower pH of 8.961 and a separation factor (<i>β</i><sub>Li/Na</sub>) of 2948. The simplified process was then implemented using organic direct recycling without regeneration and scrubbing raffinate reflux for a total of 23 cycles, thereby demonstrating the exceptional effectiveness and stability of this system. The resulting lithium-rich stripping solution, with the Li/Na mass ratio amplified by 747 times, underwent further magnesium removal and precipitation using sodium carbonate to yield a high-purity lithium carbonate product of 99.50%. This study offers a novel approach and technology for the efficient separation of lithium ion directly from a partial-neutral carbonate salt lake with a high Na/Li ratio and low lithium concentration.</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":"43 12","pages":"6717 - 6729"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738413","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}
引用次数: 0
Constructing Fe-Co2P/CeO2 heterostructure nanosheet arrays for attaining energy-saving hydrogen production in seawater 构建 Fe-Co2P/CeO2 异质结构纳米片阵列,在海水中实现节能制氢
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02932-1
Rui-Qing Li, Hang Su, Shui-Xiang Xie, Xiao-Yu Wan, Chang-Ming Wang, Guang-Yu Zhang, Ming-Zheng Ge, Jia-Mu Dai, Chao-Zhuang Xue, Chao-Rong Li, Jun Cao, Wei Zhang
{"title":"Constructing Fe-Co2P/CeO2 heterostructure nanosheet arrays for attaining energy-saving hydrogen production in seawater","authors":"Rui-Qing Li,&nbsp;Hang Su,&nbsp;Shui-Xiang Xie,&nbsp;Xiao-Yu Wan,&nbsp;Chang-Ming Wang,&nbsp;Guang-Yu Zhang,&nbsp;Ming-Zheng Ge,&nbsp;Jia-Mu Dai,&nbsp;Chao-Zhuang Xue,&nbsp;Chao-Rong Li,&nbsp;Jun Cao,&nbsp;Wei Zhang","doi":"10.1007/s12598-024-02932-1","DOIUrl":"10.1007/s12598-024-02932-1","url":null,"abstract":"<div><p>Electrolyzing seawater is a promising solution to produce hydrogen, which is hindered by low-efficiency oxygen evolution reaction (OER) and noxious chloride chemistry. Herein, the Fe-Co<sub>2</sub>P/CeO<sub>2</sub> heterostructure nanosheet arrays are developed to achieve energy-saving and chlorine-free hydrogen generation by coupling hydrogen evolution reaction (HER) with hydrazine oxidation reaction (HzOR) in seawater. The Fe-Co<sub>2</sub>P/CeO<sub>2</sub> realizes current densities of 10 and 400 mA·cm<sup>−2</sup> at 52 and 204 mV for HER. The anode potential is significantly decreased after replacing OER with HzOR. Theoretical calculations display that the electronic structure of Fe-Co<sub>2</sub>P can be regulated after coupling CeO<sub>2</sub>, which lowers the water dissociation barrier and optimizes hydrogen adsorption-free energy, thus boosting catalytic kinetics. Significantly, the hybrid seawater electrolyzer produces hydrogen at ultralow cell voltages, greatly reducing traditional water electrolysis voltages and avoiding hazardous chlorine chemistry. This study provides an avenue to exploit advanced catalysts for acquiring hydrogen with energy-efficiency and chlorine-free from abundant ocean.</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":"43 12","pages":"6426 - 6435"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738225","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}
引用次数: 0
Hybrid bilayers of carbon/NiBr2 anchoring on FeSiB surface for enhanced microwave absorption coupling with smart discoloration 锚定在 FeSiB 表面的碳/NiBr2 混合双层膜,用于增强微波吸收耦合和智能变色
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02913-4
Jun-Feng Wang, Min Xia, Jian-Ning Sun, Hong-Yan Zhang, Qi-Hui Sun, Jun-Wei Wang, Nasir Mahmood, Xian Jian
{"title":"Hybrid bilayers of carbon/NiBr2 anchoring on FeSiB surface for enhanced microwave absorption coupling with smart discoloration","authors":"Jun-Feng Wang,&nbsp;Min Xia,&nbsp;Jian-Ning Sun,&nbsp;Hong-Yan Zhang,&nbsp;Qi-Hui Sun,&nbsp;Jun-Wei Wang,&nbsp;Nasir Mahmood,&nbsp;Xian Jian","doi":"10.1007/s12598-024-02913-4","DOIUrl":"10.1007/s12598-024-02913-4","url":null,"abstract":"<div><p>Developing bifunctional materials with smart discoloration and microwave absorption properties has attracted widespread interest in microwave absorption/shielding, yet it is challenging for reversible discoloration performance in humid (such as forest) and dry (desert) environments. Herein, we combined catalytic chemical vapor deposition (CCVD) technology and a hydrothermal synthesis method to develop a FeSiB@C@NiBr<sub>2</sub> atomic-scale double-shell gradient structure with rich interfaces. These nanosheet arrays favor interface polarization, impedance matching, and dipole polarization of the material, thereby optimizing the microwave absorption performance. The optimal reflection loss (RL) value of FeSiB@C@NiBr<sub>2</sub> reached − 59.6 dB at 9.2 GHz, and the effective absorption bandwidth (EAB) reached 7.0 GHz at a thickness of 2.5 mm. Compared with pure FeSiB (RL<sub>min</sub> of − 13.5 dB), the RL<sub>min</sub> value of the absorber designed by this method increased by ~ 3 times. The color of NiBr<sub>2</sub> in the outermost nanosheet arrays changes between yellow and green in the case of water molecule harvesting and loss, respectively. This novel FeSiB@C@NiBr<sub>2</sub> composite structure material is expected to provide a promising platform for wave-absorbing and smart discoloring materials.</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 1","pages":"489 - 502"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738230","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}
引用次数: 0
Near-zero temperature coefficient in Mg2+–Ti4+ co-doped Sm2O3–CaSmAlO4 microwave dielectric ceramics Mg2+-Ti4+ 共掺杂 Sm2O3-CaSmAlO4 微波介电陶瓷中的近零温度系数
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02918-z
Jin-Quan Zeng, Jun-Lei Qi, Yue-Yang Yang, Min-Hao Zhang, Yuan-Hua Lin
{"title":"Near-zero temperature coefficient in Mg2+–Ti4+ co-doped Sm2O3–CaSmAlO4 microwave dielectric ceramics","authors":"Jin-Quan Zeng,&nbsp;Jun-Lei Qi,&nbsp;Yue-Yang Yang,&nbsp;Min-Hao Zhang,&nbsp;Yuan-Hua Lin","doi":"10.1007/s12598-024-02918-z","DOIUrl":"10.1007/s12598-024-02918-z","url":null,"abstract":"<div><p>The practical application of CaSmAlO<sub>4</sub> microwave dielectric ceramics is limited by its low quality factor (<i>Q</i>×<i>f</i>) value and non-zero temperature coefficient resonant frequency (<i>τ</i><sub>f</sub>) value. In this study, we introduced Mg<sup>2+</sup>–Ti<sup>4+</sup> ionic pairs into CaSmAlO<sub>4</sub>, along with an excess of 9% Sm<sub>2</sub>O<sub>3</sub>. The Mg<sup>2+</sup>–Ti<sup>4+</sup> ionic pairs substituted Al<sup>3+</sup>, and two phases simultaneously coexisted in the ceramics: CaSmAlO<sub>4</sub> and Sm<sub>2</sub>O<sub>3</sub>. As the doping concentration of Mg<sup>2+</sup>–Ti<sup>4+</sup> ionic pairs increased, the relative permittivity exhibited an upward trend, while the quality factor and resonant frequency temperature coefficient first rose and then descended. Remarkably, 0.09Sm<sub>2</sub>O<sub>3</sub>–0.91CaSmAl<sub>0.7</sub>Mg<sub>0.15</sub>–Ti<sub>0.15</sub>O<sub>4</sub> sintered at 1450 °C yielded excellent dielectric properties: <i>ε</i><sub>r</sub> = 19.72, <i>Q</i> × <i>f</i> = 72,936 GHz, and <i>τ</i><sub>f</sub> = –0.044 ppm·°C<sup>− 1</sup>. The factors influencing the microwave dielectric properties of 0.09Sm<sub>2</sub>O<sub>3</sub>–0.91CaSmAlO<sub>4</sub> ceramics were further examined by considering the crystal structure, grain size, Lichtenecker logarithmic rule, tolerance factor and packing fraction.</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":"43 12","pages":"6549 - 6558"},"PeriodicalIF":9.6,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738241","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}
引用次数: 0
Dual near-infrared AgInS2 and CuInS2 co-sensitized ZnO photoelectrode array enabled paper-based ratiometric photoelectrochemical aptasensing AgInS2 和 CuInS2 双近红外共敏化氧化锌光电电极阵列实现了纸基比率光电化学感应
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-20 DOI: 10.1007/s12598-024-02874-8
Hong-Mei Yang, Chuan-Yi Tu, Yi-Lin Zhuang, Yu-Heng Li, Yu-Xin Hao, Qiu-Yi Li, Li-Na Zhang, Jing-Hua Yu, Yan Zhang
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引用次数: 0
High-performance 0.75Li3V2(PO4)3·0.25Li3PO4/C composite cathode for lithium-ion batteries 用于锂离子电池的高性能 0.75Li3V2(PO4)3-0.25Li3PO4/C 复合正极
IF 9.6 1区 材料科学
Rare Metals Pub Date : 2024-07-18 DOI: 10.1007/s12598-024-02896-2
Rui-Qi Su, Jing-Jing Zhu, Qing-Rong Kong, Xiang Yao
{"title":"High-performance 0.75Li3V2(PO4)3·0.25Li3PO4/C composite cathode for lithium-ion batteries","authors":"Rui-Qi Su,&nbsp;Jing-Jing Zhu,&nbsp;Qing-Rong Kong,&nbsp;Xiang Yao","doi":"10.1007/s12598-024-02896-2","DOIUrl":"10.1007/s12598-024-02896-2","url":null,"abstract":"<div><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":"43 11","pages":"6081 - 6087"},"PeriodicalIF":9.6,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141738228","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}
引用次数: 0
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