Journal of Rare Earths最新文献

{"title":"Role of cerium in modifying inclusions and enhancing glass formation of Fe-based amorphous alloys","authors":"Shuai Mo,&nbsp;Hua Zhang,&nbsp;Anding Wang,&nbsp;Jingshe Li,&nbsp;Jie Yang,&nbsp;Tao Liu,&nbsp;Hongwei Ni","doi":"10.1016/j.jre.2025.12.031","DOIUrl":"10.1016/j.jre.2025.12.031","url":null,"abstract":"<div><div>Fe-based amorphous alloys generally suffer from detrimental effect of inclusions, and the unclear formation and evolution of inclusions lead to the lack of basis for alloy melt purification and performance enhancement. Referring to Ce-treatment in the field of steel metallurgy, the role of Ce in modifying inclusions, purifying alloy melt and enhancing glass formation of Fe-based amorphous alloys was studied in detail. Combined with the characterization of inclusions in Fe₈₃Si₂B₁₂P₃Ce_<em>x</em> (at%) alloys at different cooling rates and the thermodynamic calculation of inclusions formation, the evolution of inclusions in Ce-free and Ce-added alloys during non-equilibrium solidification was unveiled. For the Ce-free alloy, high melting point CaO–Al₂O₃ and Al₂O₃ oxide inclusions can be formed in the melt and (Ca,Ti,Mn)S sulfide inclusions precipitate during solidification due to the segregation and supersaturation of sulfur. Therefore, the increase of cooling rate suppresses the formation of sulfide inclusions and reduces the size and number density of inclusions. For the Ce-added alloy, the type of inclusions is invariant to cooling rate, because the inclusions are modified into larger Ce₂S₃, CeAlO₃ and Ce₂O₂S inclusions in the melt due to the strong affinity of Ce with sulfur and oxygen. These large-sized Ce-containing inclusions in the melt are readily removed by flotation, resulting in a significantly reduced content of oxygen and sulfur as well as the number density of inclusions after Ce-treatment. This enables the preparation of Ce-added amorphous ribbon without dendritic α-Fe grains due to the reduced heterogeneous nucleation sites. Additionally, the alloying of large atom Ce will strongly interact with P, Si, B and create topological and chemical constraints, which will increase the crystallization activation energy and impede atomic diffusion, contributing to the amorphous formation of the Ce-added alloy. These findings are important and facilitate the industrialization of high-performance Fe-based amorphous alloys.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 3078-3090"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen vacancy-rich CoCeOx nanofiber as robust peroxymonosulfate activators for thiamethoxam degradation","authors":"Yaohua Yu,&nbsp;Quanquan Shi,&nbsp;Qi Xiong,&nbsp;Hongjing Ding,&nbsp;Heping Shi","doi":"10.1016/j.jre.2025.09.042","DOIUrl":"10.1016/j.jre.2025.09.042","url":null,"abstract":"<div><div>Developing advanced catalysts for neonicotinoid pesticide degradation is crucial importance in addressing environmental contamination. Herein, we designed oxygen vacancy (O_v)-rich CoCeO_<em>x</em> solid solution nanofibers via electrospinning and calcination. The optimized lattice stress and O_v density enable synergistic Ce³⁺/Ce⁴⁺ and Co²⁺/Co³⁺ redox cycles to drive radical generation, resulting in the exceptional performance in peroxymonosulfate activation for thiamethoxam degradation (achieving &gt;71% removal within 60 min). The system exhibits broad pH adaptability and strong resistance to general anions and humic acid. Furthermore, mechanistic studies reveal that SO₄^·– serves as primary reactive species during the advanced oxidation processes, while O_V facilitates thiamethoxam adsorption and electron transfer. Remarkably, CoCeO_<em>x</em> composites maintain higher stability with &lt;9% efficiency loss after 5 cycles via suppressed metal leaching with solid-solution. Intermediate analysis addresses critical insights into neonicotinoid pesticide degradation pathways. This work presents an effective heterogeneous catalytic system for pesticide remediation in complex water environments.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 2902-2912"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pore diameter effects on thermal stability of lanthanum-modified γ-Al2O3","authors":"Jie Dong,&nbsp;Meiqing Shen,&nbsp;Haoxuan Liu,&nbsp;Wei Li,&nbsp;Feng Gao","doi":"10.1016/j.jre.2025.09.041","DOIUrl":"10.1016/j.jre.2025.09.041","url":null,"abstract":"<div><div>To investigate the impact of pore diameter on the thermal stability of La-doped transition aluminas, we examined three γ-Al₂O₃ materials with distinct pore diameters, both with and without La doping. Via material characterizations including N₂ adsorption–desorption, X-ray diffraction (XRD), thermogravimetric analysis, X-ray photoelectron spectroscopy (XPS), ²⁷Al and ¹H nuclear magnetic resonance (NMR), we discover that in the absence of La doping, the thermal stability of Al₂O₃ decreases significantly with decreasing pore diameter. For La-doped Al₂O₃, the influence of pore diameter on thermal stability is mitigated at 1100 °C but re-emerges at 1200 °C. We propose that the La species that provide structure protection are highly, or even atomically dispersed on the alumina surface. La₂O₃ or LaAlO₃ aggregates, if even present, are not the main La moieties that provide structure protection. The highly dispersed La species occupy defective sites on Al₂O₃, effectively slowing down phase transformation to α-Al₂O₃. At 1200 °C, La diffuses into the Al₂O₃ bulk and as such, loses its protective function.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 3067-3077"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progress in rare earth thermocatalysis: A 2025 annual review","authors":"Ming Zhang,&nbsp;Xuan Meng,&nbsp;Jin-Yue Chen,&nbsp;Xin-Pu Fu,&nbsp;Chun-Jiang Jia,&nbsp;Chun-Hua Yan","doi":"10.1016/j.jre.2026.08.005","DOIUrl":"10.1016/j.jre.2026.08.005","url":null,"abstract":"<div><div>Rare earth elements have become indispensable in heterogeneous thermal catalysis due to their unique 4f electronic structures, reversible redox properties, and strong chemical affinity. This review summarizes advances during the year 2025 in rare earth-based thermal catalysis for hydrogen production, dehydrogenation, CO₂ hydrogenation, and biomass conversion, and distills four general structure-activity principles: vacancies as active sites, spillover as a field-expanding driver, electronic modulation for performance tuning, and interfacial engineering for stability. Rare earth oxides inhibit metal sintering via strong metal-support interaction (SMSI), generate abundant oxygen vacancies (O_v) through lattice distortion to promote adsorption and hydrogen spillover, and fine-tune surface acid-base properties to improve metal dispersion and interfacial electronic structure. As a result, rare earth-modified catalysts exhibit superior activity, selectivity, and long-term stability in methanol reforming (MSR), water-gas shift (WGS), ammonia decomposition, propane dehydrogenation (PDH), CO₂ hydrogenation, and biomass valorisation. Future work should focus on synergistic mechanisms in multi-rare earth systems, dynamic structural evolution under reaction conditions, and durability under industrial-scale operation. Rational electronic structure engineering will unlock the full potential of rare earths as “catalyst vitamins”, providing a solid foundation for next-generation low-carbon catalytic technologies.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 2757-2786"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149071951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rolling strain rate-driven deformation mechanism transition and mechanical properties enhancement in Mg–10Gd–3Y–0.5Zr alloy","authors":"Binshan Wang,&nbsp;Jianfeng Fan,&nbsp;Pengyun Yang,&nbsp;Weiping Huang,&nbsp;Lu Wang,&nbsp;Shuai Yuan,&nbsp;Simin Shen,&nbsp;Zhaohui Shan,&nbsp;Qiang Zhang","doi":"10.1016/j.jre.2025.11.016","DOIUrl":"10.1016/j.jre.2025.11.016","url":null,"abstract":"<div><div>This work investigated the effects of rolling strain rates on the deformation mechanisms, microstructure, and mechanical properties of Mg–10Gd–3Y–0.5Zr alloys. As the strain rate increases, the dominant deformation mechanism during the rolling process transitions from a combination of twinning and dislocation slip to a multi-slip mechanism. Correspondingly, the microstructure of low strain rate rolling (LSRR)-treated sample is mainly composed of numerous {10<span><math><mrow><mover><mn>1</mn><mo>¯</mo></mover></mrow></math></span>2} extension twins and deformed grains. In contrast, twins disappear in the middle (MSRR) and high strain rate rolling (HSRR)-treated samples, and the dynamic recrystallization (DRX) fraction increases with the increasing strain rate, resulting in significant decrease in average grain size. The dominant DRX mechanism also transitions from discontinuous dynamic recrystallization (DDRX) in the MSRR-treated sample to continuous dynamic recrystallization (CDRX) in the HSRR-treated sample. In addition, the basal texture intensity shows an overall decreasing trend with increasing strain rate, while the orientation changes from &lt;10<span><math><mrow><mover><mn>1</mn><mo>¯</mo></mover></mrow></math></span>0&gt; − &lt;11<span><math><mrow><mover><mn>2</mn><mo>¯</mo></mover></mrow></math></span>0&gt;//Rolling direction (RD) to &lt;10<span><math><mrow><mover><mn>1</mn><mo>¯</mo></mover></mrow></math></span>0&gt;//RD. The mechanical properties of the rolled samples monotonically improve with increasing strain rate, specifically, the HSRR-treated sample exhibits enhancements of 44 MPa in yield strength (YS), 96 MPa in ultimate tensile strength (UTS), and 2.9% in fracture elongation (FE) compared to the LSRR sample.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 3044-3058"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional features of sol–gel derived terbium substituted calcium-based M-type hexaferrites","authors":"Muhammad Ijaz,&nbsp;Hafeez Ullah","doi":"10.1016/j.jre.2026.01.028","DOIUrl":"10.1016/j.jre.2026.01.028","url":null,"abstract":"<div><div>Currently, we prepared M-type Ca_0.6La_0.4Fe_{12–<em>x</em>}Tb_<em>x</em>O₁₉ (0.0 ≤ <em>x</em> ≤ 0.8) hexaferrites nanoparticles through sol–gel route. Then, the impact of the cationic replacements on Ca_0.6La_0.4Fe_{12–<em>x</em>}Tb_<em>x</em>O₁₉ hexaferrites was examined. The prepared samples were then subjected to a variety of characterization procedures, including a vibrating sample magnetometer (VSM), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and UV–vis spectroscopy. An XRD investigation indicates that Fe₂O₃ phases are present in all of the prepared samples. UV–vis spectroscopy investigation indicates the decreasing order in band gap with doping level. The refined-lattice parameters <em>a</em> as well as <em>c</em> both show increasing tendency primarily for doping level of <em>x</em> = 0.6 and afterward they starts diminishing order. Dissipation factor, dielectric-loss along with dielectric-constant rises with increasing doping content. The results indicate that <em>M</em>_r/<em>M</em>_s values stay between 0.567 and 0.575. Coercivity (<em>H</em>_c) and magneto-crystalline anisotropy-field (<em>H</em>_a) are first improved up to a doping content of <em>x</em> = 0.6, after which they decline. As the Tb doping level increases, the average crystallite size (<em>D</em>) increases steadily amongst 40.994 and 45.052 nm. M-type Ca_0.6La_0.4Fe_11.4Tb_0.6O₁₉ hexaferrites were synthesized with a doping concentration of <em>x</em> = 0.6. They have outstanding magnetic properties, with <em>m</em>_B = 8.091 <em>μ</em>_B, <em>M</em>_s = 42.954 emu/g, <em>H</em>_c = 3.156 kOe, and <em>H</em>_a = 0.986 kOe. The results indicate that the magnetic features of M-type hexagonal-ferrite can be considerably enhanced via altering the cationic substitutions. This doping impact on magnetic characteristics of hexaferrites marks them valuable in various applications, for example magnetic-filters, high performance-self biased-circulators and recording media.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 2951-2960"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning electronic interaction between silver quantum dots and Y-MOF to boost photocatalytic acetaldehyde pollutant purification","authors":"Hui Yang,&nbsp;Feng Tang,&nbsp;Dong Xu,&nbsp;Wenxuan Qian,&nbsp;Yunfei Ma,&nbsp;Jinping Lei,&nbsp;Xilong Yue,&nbsp;Teruhisa Ohno,&nbsp;Qitao Zhang,&nbsp;Bin Xu","doi":"10.1016/j.jre.2025.12.016","DOIUrl":"10.1016/j.jre.2025.12.016","url":null,"abstract":"<div><div>Developing efficient photocatalysts for purifying volatile organic compounds (VOCs) is faced with a significant challenge in environmental remediation fields. Herein, a novel photocatalyst named Ag-YT was successfully synthesized by anchoring silver quantum dots (Ag QDs) into an yttrium-based organic framework (Y-TBAPy) using a one-pot method. The Ag-YT photocatalyst demonstrates remarkable performance in degrading acetaldehyde, with an apparent quantum efficiency (AQE) value of 10.5% at 420 nm, which is 20.7- and 3.5-times higher than that of pristine H₄TBAPy and commercial P25, respectively. Comprehensive characterizations confirm that the synergistic interaction between Ag QDs and yttrium-based metal–organic framework (Y-MOF) can facilitate charge separation and improve light absorption and utilization, thereby boosting the overall photocatalytic efficiency of CH₃CHO removal significantly. Mechanistic investigations reveal that Ag QDs can serve as electron reservoirs, then the recombination of carriers is suppressed and the generation of reactive oxygen species (ROS) is promoted equally. More importantly, the Ag-YT photocatalyst exhibits excellent stability and reusability over multiple activity test cycles. This work not only provides a rational design strategy for modulating metal-supported interactions with MOF-based photocatalysts, but also offers a promising solution for efficiently reducing VOCs abatement in the practical applications.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 10","pages":"Pages 2913-2921"},"PeriodicalIF":9.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing downshift luminescence of double perovskites Cs2NaBiCl6:Er3+/Ho3+ through Sb3+ ions alloying and anti-counterfeiting application","authors":"Yuhong Zhang,&nbsp;Xuezhong Yang,&nbsp;Hongqun Zhu,&nbsp;Chunhui Sun,&nbsp;Haoran Wang,&nbsp;Haozhou Tian,&nbsp;Hang Liu","doi":"10.1016/j.jre.2025.09.026","DOIUrl":"10.1016/j.jre.2025.09.026","url":null,"abstract":"<div><div>Here, a new type of Sb³⁺ ions alloying with RE³⁺ (RE = Er, Ho) ions heavy concentration doped Cs₂NaBiCl₆ double perovskites (DPs) was successfully synthesized by solvothermal method. The structure and morphology of all samples were characterized with X-ray diffraction, energy dispersive spectroscopy and X-ray photoelectron spectroscopy. The excitation and emission spectra for all samples are investigated in detailed. Under 354 nm excitation, a strong broad blue emission band from 400 to 500 nm is obtained in Cs₂NaBiCl₆:15 mol%Sb³⁺ DPs. Compared with the Cs₂NaBiCl₆:RE³⁺ sample, the emission intensities of Er³⁺ and Ho³⁺ ions for Cs₂NaBiCl₆:Sb³⁺/RE³⁺ DPs are enhanced by 38 and 29 times due to alloying Sb³⁺ ions, respectively. And the self-trapped exciton (STE) emission intensity is also dramatically increased. The energy transfer process from free exciton (FE) to STE and excited state level of RE³⁺ contribute to increased luminescence intensity. In addition, the temperature-dependent luminescence spectra of Cs₂NaBiCl₆:Sb³⁺/RE³⁺ samples were measured from 83 to 423 K. The luminescence thermal enhancement phenomenon is obtained at lower temperature range. At last, the anti-counterfeiting application of Cs₂NaBiCl₆:Sb³⁺/RE³⁺ samples is elaborated due to their bright multi-color emission under different excitation and temperatures.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2560-2571"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural evolution-facilitated broadband near-infrared emission of multifunctional Sc-based phosphor with long wavelength","authors":"Yiting Huang,&nbsp;Haonan Cui,&nbsp;Zhepei Yan,&nbsp;Shuping Huang,&nbsp;Rui Wang,&nbsp;Hong Yuan,&nbsp;Yuxin Liu,&nbsp;Decai Huang,&nbsp;Jun Zhang,&nbsp;Wei Qian,&nbsp;Hong Li,&nbsp;Jing Zhu","doi":"10.1016/j.jre.2025.09.024","DOIUrl":"10.1016/j.jre.2025.09.024","url":null,"abstract":"<div><div>Near-infrared (NIR) phosphors have received widespread attention owing to their promising applications of bioimaging, night detecting, solar cell, and chemical identification. However, a challenging and difficult issue is realizing NIR luminescence centered at long wavelength (&gt;830 nm), hindering multifunctional applications. Herein, we reported a Sc-based NIR phosphor K₃Sc(PO₄)₂ (KSPO):Cr³⁺ with space group <em>P</em>_3 (No. 147), presenting 870 nm emissive peak and full width at half maximum (FWHM) of 180 nm. The structural evolution is triggered via replacing K⁺ with Rb⁺, achieving a new Sc-based phosphor K₂RbSc(PO₄)₂ (KRSPO):Cr³⁺ with space group <em>P</em>_3<em>m</em>1 (No. 163). Despite the single occupancy of Cr³⁺ activator, the structural evolution significantly facilitates the intensity and efficiency of the broadband NIR emission, while concurrently causing the red-shift of the emissive peak to 900 nm, primarily resulting from the variation of host bandgap, Stokes shift and Cr³⁺ coordination field. A KRSPO:Cr³⁺-based NIR light source exhibits promisingly versatile applications of c-Si solar cell, non-destructive detection, bioimaging, night vision imaging, and chemical identification. This work confirms the significant role of host structure for achieving long-wavelength broadband NIR phosphor.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2597-2604"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatially isolated activator strategy for high sensitivity nanothermometry and multimodal bioimaging","authors":"Ruitong Song,&nbsp;Binghua Xiang,&nbsp;Shunju Liu,&nbsp;Jiaxiang Hu,&nbsp;Hao Fu,&nbsp;Yue Zhao,&nbsp;Changjiu He,&nbsp;Heping Deng","doi":"10.1016/j.jre.2025.08.017","DOIUrl":"10.1016/j.jre.2025.08.017","url":null,"abstract":"<div><div>The design of rare earth-doped nanoparticles for multifunctional applications has drawn tremendous attention. However, the distinct properties of individual rare earth ions require a specific strategy to integrate them harmoniously for versatile applications. Herein, we report a conceptual model to design NaErF₄:Tm@NaYF₄@NaLuF₄:Yb/Tm@NaGdF₄ core–multilayer shell nanoplatform through spatial control and rationalization of the composition of each layer. Opposite thermal quenching phenomena of the core and the second layer without mutual influence are realized through the spatial separation of the inert interlayer, enabling multimode nanothermometry with an ultra-high absolute sensitivity of 1.05 K^‒1 and a relative sensitivity up to 3.75%/K. More importantly, the capability of multimodal tumor imaging is also validated by <em>in vitro</em> and <em>in vivo</em> experiments, including upconversion luminescence, computed tomography (CT), and <em>T</em>₁-weighted magnetic resonance imaging (MRI). This proof-of-concept work demonstrates the great potential of this multifunctional nanoplatform for diverse applications, particularly for tumor imaging and nanothermometry.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2551-2559"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}