Journal of Rare Earths最新文献

{"title":"Achieving thermally enhanced upconversion emission via lattice distortion and dimer-mediated energy transfer in 0D Mn2+/Yb3+/Er3+-tridoped Cs3BiCl6 perovskites","authors":"Zhenbeina Deng,&nbsp;Yusheng Xu,&nbsp;Qiudong Duan,&nbsp;Tianyu Guo,&nbsp;Xianchang Ning,&nbsp;Zhangwen Long,&nbsp;Dacheng Zhou,&nbsp;Qi Wang,&nbsp;Yugeng Wen,&nbsp;Jianbei Qiu","doi":"10.1016/j.jre.2025.10.012","DOIUrl":"10.1016/j.jre.2025.10.012","url":null,"abstract":"<div><div>Zero-dimensional (0D) halide perovskites inherently exhibit inefficient energy transfer for lanthanide-based upconversion luminescence (UCL) due to isolated structural units. Despite extensive research efforts, the exploration and validation of thermally enhanced UCL in 0D perovskites remain notably limited. This study demonstrates that Mn²⁺/Yb³⁺/Er³⁺ tri-doping can achieve a ninefold enhancement of Er³⁺ UCL in 0D Cs₃BiCl₆ with preferential amplification of green emission. In particular, structural analysis, electron paramagnetic resonance, and steady-state spectroscopies confirm that the formation of Yb³⁺-Mn²⁺ dimers can overcome the limitation of an ultralong interionic distance of 0.774 nm, enabling efficient energy transfer upconversion at elevated temperatures. Furthermore, comparative investigations with one-dimensional (Cs₃Bi₂Cl₉) and three-dimensional (Cs₂NaBiCl₆) perovskites reveal that the pronounced UCL enhancement originates from Mn²⁺-induced lattice distortion and facilitates energy transfer from Yb³⁺-Mn²⁺ dimer to Er³⁺. Finally, the optical thermometry exhibits a high absolute sensitivity of 2.09%/K and outstanding thermal cycling properties in the 313–573 K range, paving the way for optical sensing applications and beyond.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2587-2596"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889122","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":"Gd3+-substituted NASICON Na4MnV1–xGdx(PO4)3/C@rGO nanocomposite as advanced cathods for sodium energy storage","authors":"Haiyan Yan,&nbsp;Yi Xie,&nbsp;Yonggang Hou,&nbsp;Jiamin Chao,&nbsp;Qiang Zhang,&nbsp;Xujiao Yang","doi":"10.1016/j.jre.2026.04.032","DOIUrl":"10.1016/j.jre.2026.04.032","url":null,"abstract":"<div><div>NASICON-structured Na₄MnV(PO₄)₃ has been proposed as an advanced cathode for sodium energy storage owing to its stable crystal structure, appropriate Na⁺ migration channels, high operating voltage and high theoretical capacity. Nevertheless, its practical applications are severely prevented by the poor electronic conductivity, which leads to rapid capacity fading and bad high-rate property. To solve this critical issue, Gd³⁺-doped Na₄MnV_{1–<em>x</em>}Gd_<em>x</em>(PO₄)₃/C@rGO (<em>x</em> = 0, 0.06, 0.12 and 0.18) nanocomposites were prepared using a modified sol-gel method. The core innovation of this work is the construction of the three-stage core-shell-network structures for the designed composite. This structural design possesses the advantages of good electronic conductivity in the rGO networks, superior structural stability in the shell and highly active sites in the core. Physicochemical characterizations reveal that Gd³⁺ doping can expand the Na⁺ migration channels and improve the electronic conductivity of Na₄MnV(PO₄)₃, while the carbon coating and rGO can form the continuous conducting networks in the nanocomposite. Electrochemical tests demonstrate that the Gd³⁺-doped Na₄MnV_{1–<em>x</em>}Gd_<em>x</em>(PO₄)₃/C@rGO (<em>x</em> = 0.06, 0.12 and 0.18) electrodes display enhanced sodium storage performances than the undoped Na₄MnV(PO₄)₃/C@rGO. Especially, Na₄MnV_0.88Gd_0.12(PO₄)₃/C@rGO cathode delivers the discharge capacity of 111.7 mA⋅h/g at 0.1C and possesses the high-capacity retention of about 92.5% after 2000 cycles at 30C. Therefore, the proposed strategy of rare-earth doping combines with <em>in-situ</em> carbon coating and rGO network via the sol-gel method features simplicity and reproducibility, which can provide a versatile approach for the modification of other electrodes for sodium-ion batteries.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2691-2702"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859398","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":"Minimal Ag+ implantation in lanthanide-based elpasolite: Trap-state manipulation unlocks high-performance multicolor persistent luminescence","authors":"Mingxing Li,&nbsp;Chennan Zhang,&nbsp;Wenwu You,&nbsp;Shuanglai Liu,&nbsp;Jiacai Li,&nbsp;Huimin Zhang,&nbsp;Huafang Zhang,&nbsp;Gencai Pan,&nbsp;Yanli Mao","doi":"10.1016/j.jre.2025.09.020","DOIUrl":"10.1016/j.jre.2025.09.020","url":null,"abstract":"<div><div>X-ray-activated persistent luminescence (PersL) materials have found widespread applications in radiation monitoring and imaging. However, due to the challenges in trap-state engineering, few materials exhibit outstanding PersL performance. Although doping strategy offers a potential approach for trap manipulation, achieving an optimal balance between PersL characteristics and luminescence efficiency remains highly challenging. In this study, the lanthanide (Ln³⁺ = Tb³⁺, Tm³⁺, Er³⁺, Ho³⁺, Dy³⁺, Sm³⁺, Pr³⁺)-doped Cs₂LiLuCl₆ elpasolite exhibits outstanding PersL properties under X-ray excitation, with tunable multicolor PersL across the visible spectrum achieved through tuning the concentration and species of Ln³⁺ dopants. Crucially, only a trace amount of Ag⁺ doping (0.3 mol%) is required to significantly optimize trap depth distribution, enabling ultralong room-temperature multicolor PersL (&gt;7 h at 300 K) while largely preserving luminescence efficiency. This finding clearly establishes the crucial role of highly reducible Ag⁺ in optimizing trap energy level distribution. Leveraging the exceptional room-temperature PersL performance of Cs₂LiLuCl₆:0.3 mol%Ag⁺,Ln³⁺ potential applications in X-ray PersL imaging and advanced information encryption is demonstrated, showcasing its promise for practical implementations.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2634-2641"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859435","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":"Research advances in rare-earth nonlinear optical crystalline materials in 2025","authors":"Tiantian He,&nbsp;Dandan Zhou,&nbsp;Fang Kong,&nbsp;Jianggao Mao","doi":"10.1016/j.jre.2026.07.021","DOIUrl":"10.1016/j.jre.2026.07.021","url":null,"abstract":"<div><div>Nonlinear optical (NLO) crystals are critical components in laser frequency conversion systems, with widespread applications in all-solid-state lasers, optical communication, and precision photonic technologies. Its independent R&amp;D and industrialization capabilities are of great significance for safeguarding the country's strategic needs in high-end manufacturing, quantum information, and national defense. Rare-earth compounds have garnered significant attention in the field of nonlinear optics due to their unique electronic structures, flexible coordination modes, and diverse structural types. Rare-earth ions can form various structural building units with oxygen, sulfur, and halogen elements. Through structural distortion, non-centrosymmetric arrangement, and synergistic interactions with active building units, they can effectively modulate the bandgap, birefringence, and NLO properties of materials. This review systematically summarizes the research progress in rare earth-based NLO crystals reported in 2025. Based on their chemical composition, they are categorized into five groups: rare-earth oxysalts, rare-earth fluorides, rare-earth chalcogenides, organic-inorganic hybrid materials, and rare-earth-doped NLO materials. Studies indicate that rare earth-based NLO materials exhibit broad application potential across the deep ultraviolet to mid-to-far infrared wavelength ranges. This article aims to summarize the compositional types, structural features, and optical properties of different rare-earth-based nonlinear optical crystals, providing a useful reference for future material screening, performance optimization, and application-oriented studies.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2501-2510"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A healable polyurethane elastomer with high mechanical strength and record-high toughness enabled by synergistic action of hydrogen bond and Eu3+−phen coordination bonds","authors":"Xianglong Li,&nbsp;Yige Wang,&nbsp;Huanrong Li","doi":"10.1016/j.jre.2025.10.014","DOIUrl":"10.1016/j.jre.2025.10.014","url":null,"abstract":"<div><div>High-performance elastomers have attracted considerable scientific attention owing to their ubiquitous applications across industrial sectors and daily life scenarios. Despite their technological prevalence, the development of multifunctional elastomeric systems that simultaneously demonstrate exceptional mechanical robustness, remarkable self-healing capability, and intrinsic photoluminescent characteristics remains a critical challenge in advanced materials engineering. In this work, a photoluminescent self-healing polyurethane elastomer with synergistically enhanced network architecture was fabricated through strategic integration of hydrogen-bonded functional motifs and lanthanide (Ln³⁺) coordination complexes featuring dynamic metal–ligand coordination bonds. Consequently, the elastomer achieves exceptional mechanical performance, a high strength of 64.04 MPa, an elongation at break of 2159.18% and an ultrahigh toughness of 512.32 MJ/m³, which is 3.2 times the toughness of typical spider silk (∼160 MJ/m³), even surpasses the toughest spider silk found to date (∼354 MJ/m³). These exceptional mechanical characteristics are principally attributed to the synergistic interplay between rationally architected Eu³⁺-ligand coordination clusters and hierarchically structured hydrogen-bonding domains comprising multifunctional acylsemicarbazide/urethane motifs. The hierarchical hydrogen-bond arrays and Ln³⁺-ligand coordination bonds function as dynamic and firm crosslinks, operating through reversible breakage–reformation cycles to dissipate mechanical energy. This network design simultaneously confers high strength, autonomous self-healing, and recyclability.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2733-2740"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333366","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":"Cerium-based halide nanocrystals towards fast high-energy radiation detection and sensitive temperature radiation sensing","authors":"Xin Li,&nbsp;Jinming Yan,&nbsp;Terefe Tafese Bezuneh,&nbsp;Tongtong Kou,&nbsp;Dan Yang,&nbsp;Rumeng Luo,&nbsp;Tong Chang,&nbsp;Deqiang Zhao,&nbsp;Feng Liu,&nbsp;Liang Wang,&nbsp;William W. Yu","doi":"10.1016/j.jre.2025.12.029","DOIUrl":"10.1016/j.jre.2025.12.029","url":null,"abstract":"<div><div>Rare-earth based luminescent materials offer rich electronic energy level structures, making them highly attractive for optoelectronic applications. Among them, all-inorganic cerium-based compounds such as Cs₃CeX₆ (X = Cl, Br, I) have garnered significant attention due to their high photoluminescence quantum yields and excellent structural stability. Herein, pristine and various metal ions-doped rare-earth cerium-based Cs₃CeBr₆ nanocrystals (NCs) were synthesized via a hot-injection method. By introducing Tb³⁺ (rare earth), Mn²⁺ (transition metal), and Sb³⁺ (main-group element), we achieved tunable dual emissions with distinct colors i.e., cyan, pink, and orange-yellow, respectively. Femtosecond transient absorption (fs-TA) spectroscopy reveals distinct luminescence mechanisms: host-to-dopant energy transfer dominates in the Tb³⁺/Mn²⁺ systems, while Sb³⁺ doping introduces an additional radiative recombination channel. We further fabricated Cs₃CeBr₆/polydimethylsiloxane (PDMS) flexible films, which exhibit excellent scintillation response and X-ray imaging capability under high-energy radiation. Additionally, we developed optical thermometers based on Tb³⁺-, Mn²⁺-, and Sb³⁺-doped Cs₃CeBr₆, as well as Sb³⁺-doped Cs₃CeCl₆ NCs. By comparing the temperature-dependent emission behaviors of host 5d-4f transitions and dopant-related f–f, d–d, and s-p transitions, the Sb³⁺-doped system demonstrates a maximum relative sensitivity (<em>S</em>_r) of 1.49%/K in the 90–210 K range. These results establish rare-earth cerium-based halide NCs as versatile platforms for multimodal radiation sensing, ranging from high-energy radiation detection to temperature-dependent photonic technologies.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2650-2659"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147884261","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":"Computational analysis of structural, phonon, optoelectronics, elastic and thermodynamic properties of rare-earth hydrides MYFeH6 (M = Na, K) for hydrogen storage applications","authors":"Zahid Khan,&nbsp;Afsaneh Sadeghi,&nbsp;Abdul Manan,&nbsp;Asif Hosen,&nbsp;Ebrahim Nemati-Kande,&nbsp;Mahmoud G.A. Saleh,&nbsp;Imed Boukhris","doi":"10.1016/j.jre.2025.11.004","DOIUrl":"10.1016/j.jre.2025.11.004","url":null,"abstract":"<div><div>In the present work, we comprehensively examined the structural, optoelectronics, elastic, thermodynamic, and hydrogen storage performance of rare-earth based complex hydrides MYFeH₆ (M = Na, K). Both the studied materials are found to crystallize in cubic phase with <em>F</em><span><math><mrow><mover><mn>4</mn><mo>¯</mo></mover><mn>3</mn></mrow></math></span><em>m</em> space group (216), as stated by optimization of unit cell to their ground state. The determined gravimetric hydrogen storage capacity values of both the studied materials NaYFeH₆ and KYFeH₆ are 3.48 wt% and 3.18 wt%, respectively, which highlights the potential of these materials for efficient hydrogen storage. The electronic properties show that both the compounds studied are semiconductors in nature with an indirect band gap at X-Γ high symmetry points. The valence band maximum (VBM) in NaYFeH₆ and KYFeH₆ is flat due to localized Fe-3d states (94%, 93%), causing heavy hole masses (∼–20<em>m</em>_e). The conduction band minimum (CBM) is dispersive with s/p hybridization (Na: ∼7% s, 6% p; K: ∼5% s, 8% p), yielding lighter electron masses (Na: 1.57<em>m</em>_e, K: 2.26<em>m</em>_e). NaYFeH₆ has a wider gap (1.56–3.17 eV vs. 1.42–2.68 eV) and better electron mobility, favoring n-type use, while both suffer poor hole transport. The mechanical attributes, such as Cauchy pressure, Pugh's ratio, and Poisson's ratio demonstrate that both the examined compounds are brittle in nature and stiffer. Thermodynamic properties demonstrate that both the studied materials obey Dulong specific heat law at low temperature ranges and show transitions to Dulong-Petit law at higher temperatures.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2703-2712"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859399","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":"Hybrid bimetallic rare-earth perovskite with multichannel bistable fatigue resistance for human-body sensing and wearable electronics","authors":"Zongze Cui,&nbsp;Zhenghui Hu,&nbsp;Wenchao Zhai,&nbsp;Liping Wang,&nbsp;Ziwei Zhang,&nbsp;Hongfei Zhao,&nbsp;Wei Li,&nbsp;Leping Miao,&nbsp;Hengyun Ye,&nbsp;Chao Shi","doi":"10.1016/j.jre.2025.10.015","DOIUrl":"10.1016/j.jre.2025.10.015","url":null,"abstract":"<div><div>As an important component of intelligent materials, multiple-channel bistable responsive hybrid perovskites have been extensively studied due to their potential applications in photoelectric and mechanical devices. However, to date, the construction of new types of bistable material with multiple-channel and anti-fatigue properties is still a daunting task. Herein, we constructed a A₄B^IB^IIIX₈-type hybrid rare-earth double perovskite (HREDP), (R3HQ)₄CsSm(NO₃)₈ (<strong>1</strong>; R3HQ = <em>R</em>-3-hydroxyquinuclidinium), with multiple-channel response and anti-fatigue properties. Crystal structures reveal that the reorientable interlayer R3HQs, along with the rearrangement of the layered perovskite structure, result in bistable characteristics. Furthermore, a series of polymer-based piezoelectric nanogenerators (PENGs) was developed, prepared with the composite films of poly(vinylidene fluoride-trifluoro ethylene) (PVDF) and various weight percentages (wt%) of <strong>1</strong>, and their performance was assessed. The advanced nanocomposite PENG with 60 wt% of <strong>1</strong> demonstrates superior piezoelectric characteristics, including an impressive open-circuit voltage <em>V</em>_oc of 41.55 V/cm², a notable short-circuits current <em>I</em>_sc of 21.49 μA/cm², and a substantial power density of 79.19 μW/cm² when subjected to a vertical pressure of 0.5 MPa. This finding demonstrates that these PENGs hold significant promise for use in human motion sensing and integration into wearable technology.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2750-2756"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859402","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 applications based on enhanced long-wavelength near-infrared emission of (Y,Lu)3Ga5O12:Cr3+,Ni2+ phosphor","authors":"Lucheng Liu,&nbsp;Yuanhong Liu,&nbsp;Tongyu Gao,&nbsp;Guantong Chen,&nbsp;Ronghui Liu,&nbsp;Xiaodong Li","doi":"10.1016/j.jre.2025.09.023","DOIUrl":"10.1016/j.jre.2025.09.023","url":null,"abstract":"<div><div>Long-wavelength near-infrared (NIR-II, 1000–1700 nm) light shows the great potential in biomedical imaging, non-visual illumination, and non-destructive detection. Ni²⁺ doped phosphors are known to emit broadband NIR-II. However, to obtain the excellent luminescence efficiency and thermal stability in Ni²⁺-activated long-wavelength NIR phosphors is still a significant challenge. herein, a series of Cr³⁺/Ni²⁺ co-doped (Y,Lu)₃Ga₅O₁₂ garnet phosphors was designed and synthesized to achieve optimized NIR-II luminescence properties. Under 440 nm excitation, the phosphors exhibit dual-broadband emission centered at 709 and 1420 nm. The matter of weak blue light absorption is addressed via efficient energy transfer between Cr³⁺ and Ni²⁺. The heavily doped Cr³⁺ (0.35) harvests more energy in the blue light and transfers it to Ni²⁺, resulting in significantly enhanced NIR-II emission. Further, the substitution of Lu³⁺ with smaller radius and a stronger electronegativity for Y³⁺ not only relaxes parity selection rules of the luminescence centers but also improves lattice rigidity. As a result, the NIR-II emission intensity of Y_1.5Lu_1.5Ga₅O₁₂:Cr³⁺,Ni²⁺ phosphor exhibits a 15-fold enhancement compared to Y₃Ga₅O₁₂:Ni²⁺, along with excellent external quantum efficiency and absorption efficiency. The Lu₃Ga₅O₁₂:Cr³⁺,Ni²⁺ phosphors show excellent thermal stability, maintaining 77% of its room-temperature emission at 373 K, which is 11.6% higher than that of Y₃Ga₅O₁₂:Cr³⁺,Ni²⁺. Finally, under illumination from an NIR phosphor-converted light-emitting diode (pc-LED) device assembled with a 450 nm blue chip, the multifunctional application potential of the phosphor is confirmed in biological imaging, non-destructive detection, and night vision lighting.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2534-2542"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148859527","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":"Photocatalyst of rare earth-doped g-C3N4 for efficient hydrogen peroxide production","authors":"Kangle Xie,&nbsp;Dandan Jiang,&nbsp;Xiahong Xu,&nbsp;Junjie Hu,&nbsp;Yan Peng,&nbsp;Suijun Liu,&nbsp;Herui Wen","doi":"10.1016/j.jre.2025.09.022","DOIUrl":"10.1016/j.jre.2025.09.022","url":null,"abstract":"<div><div>Developing new graphitic carbon nitride (BCN) for hydrogen peroxide (H₂O₂) formation is a sustainable pathway for the chemical industry, but the slow migration of photogenerated charges due to the weak internal electric field of BCN severely limits the H₂O₂ yield. Herein, a series of photocatalysts of rare earth (La, Ce, Eu, Tb, Er and Yb) doped g-C₃N₄ was synthesized through a facile calcination method using hydrogen-bonded organic framework (HOF-MA) and rare earth salt. Among them, the initial photocatalytic H₂O₂ rate of optimal Er-doped g-C₃N₄ (Er-CN) attains 300.74 μmol/(g·h), which is 125.83 times greater than that of BCN. Experimental characterization and density functional theory (DFT) calculations unveil that the introduced bonding of Er to N as an electronic bridge to promote effective charge separation and migration, strong O₂ adsorption capacity, and low reaction energy barrier of hydroperoxyl radical (∗OOH) intermediates are the important factors for excellent photoactivity. Moreover, the experimental results confirm the superoxide anion radical (·O₂^–) and ∗OOH as mediators, and two-step single-electron O₂ reduction transfer pathway in the photocatalytic H₂O₂ production by Er-CN. This work provides an effective strategy for the design and development of novel rare earth doped g-C₃N₄ catalysts for photocatalytic H₂O₂ production.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"44 9","pages":"Pages 2668-2677"},"PeriodicalIF":9.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861953","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}