Rare Metals最新文献

{"title":"Realizing high power factor in p-type BiSbTe flexible thin films via carrier engineering","authors":"Dong-Wei Ao, Bo Wu, Wei-Di Liu, Xiang-Bo Shen, Wen-Qing Wei","doi":"10.1007/s12598-024-02962-9","DOIUrl":"https://doi.org/10.1007/s12598-024-02962-9","url":null,"abstract":"<p>Flexible thermoelectric thin films offer a promising avenue for the development of portable and sustainable flexible power supplies. However, a lack of thin films with excellent performance restricts their application in flexible thermoelectric devices. In this study, high-performance BiSbTe films are successfully prepared using a combination of magnetron sputtering and thermal diffusion. By optimizing carrier concentration to ~ 4.47 × 10¹⁹ cm⁻³ and simultaneously realizing high carrier mobility of &gt; 120 cm²·V⁻¹·s⁻¹, an impressive room-temperature power factor of 24.13 μW·cm⁻¹·K⁻² is achieved in a Bi_0.4Sb_1.6Te₃ thin film. The flexible Bi_0.4Sb_1.6Te₃ thin film also demonstrates excellent bending resistance and stability (Δ<i>R</i>/<i>R</i>₀ &lt; 5%, Δ<i>S</i>/<i>S</i>₀ &lt; 5%, and Δ<i>S</i>²<i>σ</i>/<i>S</i>₀²<i>σ</i>₀ &lt; 10%) after 1000 bending cycles at a minimum bending radius of 6 mm. A flexible thin-film thermoelectric device assembled with p-type Bi_0.4Sb_1.6Te₃ legs achieves a remarkable power output of ~ 82.15 nW and a power density of ~ 547.68 μW·cm⁻² under a temperature difference of 20 K.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"37 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209146","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":"Novel gradient ZrB2–MoSi2–SiC dense layer with enhanced emissivity and long-term oxidation resistance at ultra-high temperatures","authors":"Ling-Yu Yang, Shun Dong, Tang-Yin Cui, Jian-Qiang Xin, Gui-Qing Chen, Chang-Qing Hong, Xing-Hong Zhang","doi":"10.1007/s12598-024-02959-4","DOIUrl":"https://doi.org/10.1007/s12598-024-02959-4","url":null,"abstract":"<p>The rapid evolution of hypersonic vehicle technologies necessitates robust thermal protection systems capable of withstanding extreme oxidative ablation. This study introduces a novel gradient-architected ZrB₂–MoSi₂–SiC dense layer embedded within a lightweight three-dimensional (3D) needled carbon fiber composite. Utilizing the volatility of ethanol and polycarbosilane, the ceramic slurry is selectively infused into targeted regions of the fibrous structure, optimizing the ZrB₂ to MoSi₂ ratio to enhance performance. The resulting dense layer exhibits exceptional emissivity, surpassing 0.90 in the 1–3 μm range and exceeding 0.87 in the 2–14 μm range. Moreover, it demonstrates remarkable oxidative ablation resistance. Specifically, at an optimized ZrB₂ to MoSi₂ ratio of 6:4, the dense layer achieves a minimal linear ablation rate of 0.015 μm·s⁻¹ under a 1.5 MW·m⁻² oxyacetylene flame for 1000 s. Even after exposure to oxyacetylene ablation at surface temperatures of approximately 1750 °C for 1000 s, the dense layer retains its structural integrity, highlighting its enduring oxidation resistance. The incorporation of MoSi₂ not only enhances emissivity but also fortifies the ZrO₂ and SiO₂ oxide layers, crucial for environments with elevated oxygen levels, thereby mitigating the active oxidation of SiC. This combination of high emissivity and long-term oxidation resistance at ultra-high temperatures positions the ZrB₂–MoSi₂–SiC dense layer as an exceptionally promising candidate for advanced thermal protection in hypersonic vehicles.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"58 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209148","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":"Accurate prediction of magnetocaloric effect in NiMn-based Heusler alloys by prioritizing phase transitions through explainable machine learning","authors":"Yi-Chuan Tang,&nbsp;Kai-Yan Cao,&nbsp;Ruo-Nan Ma,&nbsp;Jia-Bin Wang,&nbsp;Yin Zhang,&nbsp;Dong-Yan Zhang,&nbsp;Chao Zhou,&nbsp;Fang-Hua Tian,&nbsp;Min-Xia Fang,&nbsp;Sen Yang","doi":"10.1007/s12598-024-02953-w","DOIUrl":"10.1007/s12598-024-02953-w","url":null,"abstract":"<div><p>With the rapid development of artificial intelligence, magnetocaloric materials as well as other materials are being developed with increased efficiency and enhanced performance. However, most studies do not take phase transitions into account, and as a result, the predictions are usually not accurate enough. In this context, we have established an explicable relationship between alloy compositions and phase transition by feature imputation. A facile machine learning is proposed to screen candidate NiMn-based Heusler alloys with desired magnetic entropy change and magnetic transition temperature with a high accuracy <i>R</i>²≈0.98. As expected, the measured properties of prepared NiMn-based alloys, including phase transition type, magnetic entropy changes and transition temperature, are all in good agreement with the ML predictions. As well as being the first to demonstrate an explicable relationship between alloy compositions, phase transitions and magnetocaloric properties, our proposed ML model is highly predictive and interpretable, which can provide a strong theoretical foundation for identifying high-performance magnetocaloric materials in the future.</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":"639 - 651"},"PeriodicalIF":9.6,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209147","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":"Frontiers in high entropy alloys and high entropy functional materials","authors":"Wen-Tao Zhang,&nbsp;Xue-Qian Wang,&nbsp;Feng-Qi Zhang,&nbsp;Xiao-Ya Cui,&nbsp;Bing-Bing Fan,&nbsp;Jia-Ming Guo,&nbsp;Zhi-Min Guo,&nbsp;Rui Huang,&nbsp;Wen Huang,&nbsp;Xu-Bo Li,&nbsp;Meng-Ru Li,&nbsp;Yan Ma,&nbsp;Zhi-Hua Shen,&nbsp;Yong-Gang Sun,&nbsp;De-Zhuang Wang,&nbsp;Fei-Yang Wang,&nbsp;Li-Qiang Wang,&nbsp;Nan Wang,&nbsp;Tian-Li Wang,&nbsp;Wei Wang,&nbsp;Xiao-Yang Wang,&nbsp;Yi-Han Wang,&nbsp;Fu-Jie Yu,&nbsp;Yu-Zhen Yin,&nbsp;Ling-Kun Zhang,&nbsp;Yi Zhang,&nbsp;Jian-Yang Zhang,&nbsp;Qi Zhao,&nbsp;Yu-Ping Zhao,&nbsp;Xin-Dong Zhu,&nbsp;Yasir Sohail,&nbsp;Ya-Nan Chen,&nbsp;Tao Feng,&nbsp;Qi-Long Gao,&nbsp;Hai-Yan He,&nbsp;Yong-Jiang Huang,&nbsp;Zeng-Bao Jiao,&nbsp;Hua Ji,&nbsp;Yao Jiang,&nbsp;Qiang Li,&nbsp;Xiao-Ming Li,&nbsp;Wei-Bing Liao,&nbsp;Huai-Jun Lin,&nbsp;Hui Liu,&nbsp;Qi Liu,&nbsp;Qing-Feng Liu,&nbsp;Wei-Di Liu,&nbsp;Xiong-Jun Liu,&nbsp;Yang Lu,&nbsp;Yi-Ping Lu,&nbsp;Wen Ma,&nbsp;Xue-Fei Miao,&nbsp;Jie Pan,&nbsp;Qing Wang,&nbsp;Hong-Hui Wu,&nbsp;Yuan Wu,&nbsp;Tao Yang,&nbsp;Wei-Ming Yang,&nbsp;Qian Yu,&nbsp;Jin-Yu Zhang,&nbsp;Zhi-Gang Chen,&nbsp;Liang Mao,&nbsp;Yang Ren,&nbsp;Bao-Long Shen,&nbsp;Xun-Li Wang,&nbsp;Zhe Jia,&nbsp;He Zhu,&nbsp;Zhen-Duo Wu,&nbsp;Si Lan","doi":"10.1007/s12598-024-02852-0","DOIUrl":"10.1007/s12598-024-02852-0","url":null,"abstract":"<div><p>Owing to their exceptional properties, high-entropy alloys (HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here, the recent advances in the field are comprehensively reviewed, organized into five sections. The first section introduces the background of HEAs, covering their definition, significance, application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering, eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics, and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review, researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.</p><h3>Graphic abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 10","pages":"4639 - 4776"},"PeriodicalIF":9.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208924","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 novel Co-free high-entropy alloy with excellent antimicrobial and mechanical properties","authors":"Wen-Yu Li,&nbsp;Ming-Liang Wang,&nbsp;Xiao-Di Wang,&nbsp;Tong-Min Wang,&nbsp;Ting-Ju Li,&nbsp;Yi-Ping Lu","doi":"10.1007/s12598-024-02957-6","DOIUrl":"10.1007/s12598-024-02957-6","url":null,"abstract":"<div><p>Microbiologically influenced corrosion and bacterial infection lead to serious losses to human production and life. Developing alloys with inherent antibacterial properties is a vital way to solve the above issues. However, the widely used Cu-containing stainless steels show insufficient antimicrobial properties and relatively low yield strengths, which further limit their application in extreme service environments. Based on the design concept of high-entropy alloys (HEAs), a novel low-cost Co-free CrFeNi_0.5Cu_0.3 HEA with an optimal combination of antibacterial and mechanical properties was designed and prepared. This alloy comprises triple-phase structures, including FeNi-rich face-centered cubic (FCC1), Cu-rich FCC2 and FeCr-rich body-centered cubic (BCC). The antibacterial rate of this HEA is up to 99.99% against <i>Escherichia coli</i>, which is far superior to that of classic 304 Cu-bearing stainless steel (304-Cu SS) and the most reported antibacterial alloys. In addition, the HEA exhibits excellent mechanical properties with a tensile strength of 1032 MPa and yield strength of 842 MPa, far surpassing the corresponding values of 304-Cu SS (i.e., 528 MPa and 210 MPa, respectively). These findings provide new insights for the development of low-cost and high-performance antibacterial alloys.</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 1","pages":"581 - 590"},"PeriodicalIF":9.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209149","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 local CO2/H2O ratio in electrocatalytic CO2 reduction toward multi-carbon product","authors":"Na Qiu,&nbsp;Wei Lu,&nbsp;Hai-Qing Wang","doi":"10.1007/s12598-024-02919-y","DOIUrl":"10.1007/s12598-024-02919-y","url":null,"abstract":"<div><p>Electrocatalytic CO₂ reduction reaction (CO₂RR) has been developed as a promising and attractive strategy to close the anthropogenic carbon cycle. Among various reduction products, multi-carbon (C₂₊) oxygenate and hydrocarbon compounds are desirable value-added fuels or chemicals. Extensive researches have revealed the crucial role of local CO₂ and H₂O concentrations (or the adsorption of *CO and *H) close to the electrode/catalyst surface in manipulating multi-carbon generation pathways. In this mini reviews, we mainly summarized the recent progress of this field over the past five years. The modulating strategies for the hydrogen and carbon species ratio can be divided into three categories, i.e., catalyst morphology, electrolyte composition and mass transfer. The effectiveness of the aforementioned strategies in promoting multi-carbon product selectivity was discussed in detail from the perspectives of tuning the local CO₂ and H₂O concentrations and the subsequent thermodynamic- and kinetic-controlled *CO and *H ratios. Finally, the critical challenges remaining in balancing the ratio of CO₂ and H₂O as well as potential upgrading directions for future research are addressed.</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 1","pages":"60 - 80"},"PeriodicalIF":9.6,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209150","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":"Modulated FeWO4 electronic structure via P doping on nitrogen-doped porous carbon for improved oxygen reduction activity in zinc–air batteries","authors":"Yue Gong,&nbsp;Dai-Jie Deng,&nbsp;Huan Wang,&nbsp;Jian-Chun Wu,&nbsp;Lin-Hua Zhu,&nbsp;Cheng Yan,&nbsp;He-Nan Li,&nbsp;Li Xu","doi":"10.1007/s12598-024-02960-x","DOIUrl":"10.1007/s12598-024-02960-x","url":null,"abstract":"<div><p>As a catalyst of the air cathode in zinc–air batteries, tungstic acid ferrous (FeWO₄), a nanoscale transition metal tungstate, shows a broad application prospect in the oxygen reduction reaction (ORR). While FeWO₄ possesses favorable electrochemical properties and thermodynamic stability, its intrinsic semiconductor characteristics result in a relatively slow electron transfer rate, limiting the ORR catalytic activity. In this work, the electronic structure of FeWO₄ is significantly modulated by introducing phosphorus (P) atoms with abundant valence electrons. The P doping can adjust the electronic structure of FeWO₄ and then optimize oxygen-containing intermediates' absorption/desorption efficiency to achieve improved ORR activity. Furthermore, the sodium chloride template is utilized to construct a porous carbon framework for anchoring phosphorus-doped iron tungstate (P–FeWO₄/PNC). The porous carbon skeleton provides numerous active sites for the absorption/desorption and redox reactions on the P–FeWO₄/PNC surface and serves as mass transport channels for reactants and intermediates. The P–FeWO₄/PNC demonstrates ORR performance (<i>E</i>_1/2 = 0.86 V vs. RHE). Furthermore, the zinc–air batteries incorporating the P–FeWO₄/PNC composite demonstrate an increased peak power density (172.2 mW·cm⁻²), high specific capacity (810.1 mAh·g⁻¹), and sustained long-term cycling stability lasting up to 240 h. This research not only contributes to the advancement of cost-effective tungsten-based non-precious metallic ORR catalysts, but also guides their utilization in zinc–air 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":"240 - 252"},"PeriodicalIF":9.6,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209186","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":"Selenide in 3D structure of polyhedra branching out nanotubes for collaborative facilitated conversion and capturing of polysulfide in Li–S batteries","authors":"Yi-Yang Li,&nbsp;Hui Liu,&nbsp;Bo Jin,&nbsp;Nan Gao,&nbsp;Xing-You Lang,&nbsp;Qing Jiang","doi":"10.1007/s12598-024-02958-5","DOIUrl":"10.1007/s12598-024-02958-5","url":null,"abstract":"<div><p>Lithium–sulfur batteries (LSBs) are considered as the promising solution to replace conventional lithium–ion batteries due to satisfactory energy density. In recent times, the LSBs field has been found to face some difficulties in exploring practical applications in which cycling stability and cycle life are awful owing to the shuttling effect of lithium polysulfides (LiPSs) and low sulfur utilization. In this work, by synthesizing Co₃Se₄ nanoparticles onto N-doped carbon (NC) polyhedra interconnected with carbon nanotubes (CNTs), NC@Co₃Se₄/CNTs is proposed as a multifunctional sulfur carrier. The Co₃Se₄ nanoparticles fleetly catalyze the conversion of LiPSs and availably immobilize LiPSs. Meanwhile, the NC polyhedral skeleton enhances the electronic conductivity of active sulfur, while the CNTs facilitate Li⁺ diffusion and supply a mass of conductive channels. Density-functional theory (DFT) calculations demonstrate the relevant mechanisms. That is to say, the NC@Co₃Se₄/CNTs benefit from the synergistic effect of Co₃Se₄ nanoparticles (highly catalytic ability and strong adsorbability for LiPSs) and the special carbonaceous structure, rapidly converting LiPSs and inhibiting the shuttle of LiPSs. Therefore, lithium–sulfur battery assembled with S/NC@Co₃Se₄/CNTs cathode as well as nitrogen and sulfur co-doped carbon-coated polypropylene (N,S-C/PP) separator possesses a high initial discharge capacity of 1413 mAh·g⁻¹ at 0.12C and persistently circulates for 1000 cycles at 1C with a capacity attenuation rate per cycle of 0.034%. This work provides a realistic idea for the use of transition metal selenide in the field of high-performance LSBs.</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":"169 - 184"},"PeriodicalIF":9.6,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209187","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":"NiSe nanoparticles anchored on hollow carbon nanofibers with enhanced rate capability and prolonged cycling durability for sodium-ion batteries","authors":"Li-Jun Xu,&nbsp;Xue-Jie Wang,&nbsp;Guo-Yu Tang,&nbsp;Bi-Cheng Zhu,&nbsp;Jia-Guo Yu,&nbsp;Liu-Yang Zhang,&nbsp;Tao Liu","doi":"10.1007/s12598-024-02956-7","DOIUrl":"10.1007/s12598-024-02956-7","url":null,"abstract":"<p>Nickel selenides have been studied as potential anode materials for sodium-ion batteries due to their high theoretical capacity. However, the low electrical conductivity and the large volumetric variation during the charging/discharging process greatly reduce the specific capacity and cycling lifespan of the batteries. In this paper, a simple strategy to fabricate NiSe nanoparticles enclosed in carbon hollow nanofibers (NiSe/C@CNF) is proposed, involving the preparation of Ni-precursor nanofibers by electrospinning, the coating of polydopamine and the formation of NiSe/C@CNF by calcination and selenization. The combination of NiSe nanoparticles and porous carbon hollow nanofibers creates a strong conductive environment, which enhances the dynamic ability of sodium-ion transport and improves charge storage capacity. The fabricated NiSe/C@CNF material exhibits excellent performance. It demonstrates a high rate capability, with specific capacities of 406.8 and 300.1 mAh·g⁻¹ at 0.1 and 5.0 A·g⁻¹, respectively. These results highlight the potential of NiSe/C@CNF as an anode material for sodium-ion batteries, offering a large capacity and long life.</p>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 1","pages":"185 - 194"},"PeriodicalIF":9.6,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209188","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 enhancement of electrochemical performance in reversible solid oxide cells via deficiency-induced oxygen vacancy and nanoparticle generation","authors":"Meng-Yun Zhang,&nbsp;Yun-Feng Tian,&nbsp;Lu Zou,&nbsp;Jian Pu,&nbsp;Bo Chi","doi":"10.1007/s12598-024-02948-7","DOIUrl":"10.1007/s12598-024-02948-7","url":null,"abstract":"<div><p>To enhance the electrochemical performance of the reversible solid oxide cell (RSOC), a facile way through adopting A-site deficient Pr_0.94BaCo_1.5Fe_0.5O_5+<i>δ</i> (PBCF94) as an air electrode for RSOC is reported. The designed A-site Pr-deficient air electrode is expected to provide abundant oxygen vacancies, macroscopic nanoparticle generation, excellent redox properties and oxygen mobility, which ultimately contribute to the enhanced electrocatalytic activity. The results confirm that the RSOC with an A-site deficient air electrode exhibits considerable peak power density up to 1.53 W·cm⁻², and the desirable electrolysis current density reaches 2.29 A·cm⁻² at 1.5 V and 800 °C. Correspondingly, the RSOC exhibits remarkable long-term reversible stability of 200 h. Thus, the A-site deficient Pr_0.94BaCo_1.5Fe_0.5O_5+<i>δ</i> air electrode could be the potential one for RSOC application.</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":"264 - 274"},"PeriodicalIF":9.6,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209196","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}