Advanced Functional Materials最新文献_第3页

Mechanically-Enhanced, Single-Phased, and Triple-Conducting Air Electrode for Robust Oxygen-Ion and Proton Conducting Ceramic Cells

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202502771

Junbiao Li, Yuan Zhang, Haojie Zhu, Hongxin Yang, Zhipeng Liu, Kuiwu Lin, Hainan Sun, Yunfeng Tian, Suling Shen, Heping Xie, Bin Chen

{"title":"Mechanically-Enhanced, Single-Phased, and Triple-Conducting Air Electrode for Robust Oxygen-Ion and Proton Conducting Ceramic Cells","authors":"Junbiao Li, Yuan Zhang, Haojie Zhu, Hongxin Yang, Zhipeng Liu, Kuiwu Lin, Hainan Sun, Yunfeng Tian, Suling Shen, Heping Xie, Bin Chen","doi":"10.1002/adfm.202502771","DOIUrl":"https://doi.org/10.1002/adfm.202502771","url":null,"abstract":"Reversible proton-conducting fuel cells (Re-PCFCs) are poised to become the next generation of solid-state ionic devices for direct conversion between hydrogen and electricity. However, their commercialization has been hindered by the absence of a high-performance triple-conducting air electrode that combines excellent electrochemical activity with superior mechanical robustness. Here, a robust single-phased air electrode is successfully developed with its mechanical strength and electrochemical activity greatly co-enhanced, by employing high valence Nb doping to stabilize the cubic perovskite lattice of pristine BaCe0.2Fe0.8O3-δ. The resulting BaCe0.1Fe0.8Nb0.1O3-δ (BCFNb) air electrode demonstrates exceptional mechanical properties in terms of Young's modulus (by 47%) and fracture toughness (by 67%). Meanwhile, the distribution of relaxation times (DRT) and Oxygen temperature-programmed desorption (O2-TPD) characterization reveals the enhanced oxygen mobility, surface exchange kinetics, and the mixed conductivity of oxygen ions and protons that synergistically resulted in the remarkably enhanced electrochemical activity—only a low area-specific resistances of 0.262 Ω·cm2 at 550 °C, translated into a high power densities of 1.091 W cm−2 at 650 °C with degradation rates <0.005 mV h−¹ in fuel cell mode and 0.14 mV h−¹ in electrolytic mode at 550 °C. These results highlight the potential of single-phased perovskite as air electrode for mechanically and electrochemically robust Re-PCFCs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"39 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806072","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

Synergistic Gradient Design of a Sandwich-Structured Heterogeneous Anode for Improved Stability in Aqueous Zinc-Ion Batteries

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202505058

Zhuo Wang, Jiabao Dong, Kexin Zhang, Zihao Zhao, Yuan Gao, Xue Bai, Tiao Zou, Bin Zhao, Yonggang Wang

{"title":"Synergistic Gradient Design of a Sandwich-Structured Heterogeneous Anode for Improved Stability in Aqueous Zinc-Ion Batteries","authors":"Zhuo Wang, Jiabao Dong, Kexin Zhang, Zihao Zhao, Yuan Gao, Xue Bai, Tiao Zou, Bin Zhao, Yonggang Wang","doi":"10.1002/adfm.202505058","DOIUrl":"https://doi.org/10.1002/adfm.202505058","url":null,"abstract":"Aqueous Zn-ion batteries provide a low-cost energy storage solution but face challenges such as dendrite formation and interface instability, which become more pronounced at high currents and capacities. Herein, a scalable sandwich-structured heterogeneous anode is proposed for aqueous zinc batteries that integrate three functionally synergistic layers. A robust 3D ZnO@C substrate (from calcined Bio-MOF-100, BMC) with dense nucleation sites guides orderly Zn deposition, while a controllable pre-deposited Zn intermediate layer precisely regulates Zn2⁺ flux. An artificial indium-based protective top-layer that chemically isolates the active Zn from the electrolyte, effectively suppresses interfacial corrosion, and enhances interlayer contact to minimize impedance while maintaining structural integrity during cycling. The structural synergies endow the symmetric cell with an ultra-long cycle life exceeding 2000 h and stable Zn plating/stripping at a remarkable depth of discharge (76%) under high current/areal capacity conditions (6 mA cm−2/12 mAh cm−2). Additionally, the BMC@Zn@In//(NH4)2V10O25·8H2O full battery achieves a stable lifespan of 5000 cycles, while the BMC@Zn@In//activated carbon hybrid supercapacitor demonstrates an impressive cycle life of 16 000 cycles. This study identifies a synergistic mechanism for an ultra-stable Zn anode with promising applications in aqueous Zn-ion batteries.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"183 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143798548","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

Asymmetric-Charge-Distributed Co─Mn Diatomic Catalyst Enables Efficient Oxygen Reduction Reaction

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202504260

Yue Zhao, Zhonghui Gao, Shuyao Zhang, Xuze Guan, Wence Xu, Yanqin Liang, Hui Jiang, Zhaoyang Li, Shuilin Wu, Zhenduo Cui, Shengli Zhu

{"title":"Asymmetric-Charge-Distributed Co─Mn Diatomic Catalyst Enables Efficient Oxygen Reduction Reaction","authors":"Yue Zhao, Zhonghui Gao, Shuyao Zhang, Xuze Guan, Wence Xu, Yanqin Liang, Hui Jiang, Zhaoyang Li, Shuilin Wu, Zhenduo Cui, Shengli Zhu","doi":"10.1002/adfm.202504260","DOIUrl":"https://doi.org/10.1002/adfm.202504260","url":null,"abstract":"Transition metal (TM)–nitrogen/carbon (M─N/C) catalysts have emerged as the most promising alternatives to precious platinum catalysts for the oxygen reduction reaction (ORR). However, the reported M─N/C catalysts typically exist in TM─N4 coordination with symmetric charge distribution, resulting in weak adsorption energies for ORR intermediates, which limits the reaction rate. Herein, a novel asymmetrically coordinated Co─Mn diatomic catalyst is synthesized through the adsorption–pyrolysis process of a bimetallic zeolitic imidazolate framework. The catalyst consists of the adjacently sulfur/nitrogen dual-coordinated Co atoms and the nitrogen-coordinated Mn atom (CoN2S─MnN3), anchored in N-doped carbon. Atomic structural investigations and density functional theory calculations demonstrate that CoN2S─MnN3 experiences spontaneous OH binding to form CoN2S─MnN3─2OH as the real active site. The strong interaction between the Co─Mn diatomic and the orbital multielectron filling effect induced by the asymmetric charge distribution optimizes the adsorption energy of the reaction intermediates. Therefore, the CoMn─NSC catalyst exhibits competitive ORR activity with a high half-wave potential of 0.901 V, outperforming most of the reported Co-based catalysts so far. The assembled Zn–air battery has ultralong lifespans of up to 1000 h. This work provides an effective strategy for designing new high-efficiency oxygen electrocatalysts.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"59 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806415","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

Vertical Emission of Blue Light from a Symmetry Breaking Plasmonic Nanocavity-Emitter System Supporting Bound States in the Continuum

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202500133

Yongqi Chen, Jiayi Liu, Jiang Hu, Yi Wang, Xiumei Yin, Yangzhe Guo, Nan Gao, Zhiguang Sun, Haonan Wei, Haoran Liu, Wenxin Wang, Bin Dong, Yurui Fang

{"title":"Vertical Emission of Blue Light from a Symmetry Breaking Plasmonic Nanocavity-Emitter System Supporting Bound States in the Continuum","authors":"Yongqi Chen, Jiayi Liu, Jiang Hu, Yi Wang, Xiumei Yin, Yangzhe Guo, Nan Gao, Zhiguang Sun, Haonan Wei, Haoran Liu, Wenxin Wang, Bin Dong, Yurui Fang","doi":"10.1002/adfm.202500133","DOIUrl":"https://doi.org/10.1002/adfm.202500133","url":null,"abstract":"A σh symmetry-breaking plasmonic honeycomb nanocavities (PHC) is proposed and realized that support quasi-BIC resonance modes with high-Q factors. The anodic oxidation-engineered strategy breaks out-of-plane symmetry while preserving in-plane symmetry, enabling the PHC to exhibit collective plasmonic lattice resonances (PLR) couplings and achieve Q-factors exceeding 106. Experimentally, perovskite quantum dots (PQDs) are coupled to the PHC, demonstrating effective tuning of their emission properties and beam quality in the blue spectral region, achieving a 32-fold emission enhancement by suppress Ohmic loss and the life time of quantum emitters, simultaneously realize vertical emission in the 2.556 – 2.638 eV region, with a far-field hexagonal beam shape and a full width at half maximum of 12.6 degree under optimal coupling conditions. Furthermore, topological band inversion is demonstrated and characterized by Zak phase transitions by continuously tuning the system parameters, confirming that the PHC supports topologically non-trivial q-BIC due to PLR coupling. The PHC presents itself as a promising next-generation, high-brightness nanoscale light source matrix, which can be directly scaled up to cover a wide wavelength range from UV to IR.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"183 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806417","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

Multi-Pathway Upconversion Emission in Symmetry-Broken Nanocavities: Broadband Multiresonant Enhancement and Anti-Correlated Interfacial Sensitivity

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202424124

Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou

{"title":"Multi-Pathway Upconversion Emission in Symmetry-Broken Nanocavities: Broadband Multiresonant Enhancement and Anti-Correlated Interfacial Sensitivity","authors":"Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou","doi":"10.1002/adfm.202424124","DOIUrl":"https://doi.org/10.1002/adfm.202424124","url":null,"abstract":"The development of efficient, biocompatible, and broadband solid-state nanocavity platforms with enhanced upconversion emission remains a critical challenge in nanophotonics, particularly for biosensing and bioimaging applications. Here, it is introduced symmetry-broken nanolaminated plasmonic nanoantenna arrays (NLPNAs) that overcome the limitations of current approaches by achieving the desired balance of multiresonant enhancement, interfacial sensitivity, and scalable fabrication. The strategic disruption of axial symmetry within metal-insulator-metal nanocavities enables broadband multiresonant enhancement across multiple upconversion emission pathways, including second harmonic generation, third harmonic generation, and upconversion photoluminescence, under femtosecond laser excitation across a broad near-infrared (NIR) wavelength range (1000–1600 nm). The fabricated asymmetric NLPNAs demonstrate substantial enhancements compared to their symmetric counterparts, displaying up to 30-fold increase in upconversion emission. The unique, anti-correlated interfacial sensitivities exhibited by these distinct emission pathways offer a new avenue for improving the reliability and specificity of multiphoton nanoplasmonic biosensing and bioimaging techniques.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"74 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143798546","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

Boosted Oxygen Evolution on Iridium through Dual-Interface-Diffusion Generated Oxygen Vacancies in Supporting Tungsten Oxide

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202501142

Pin Fang, Yuxiang Wang, Fang Zhang, Zihou Zhang, Ruimin Qin, Yaqiong Su, Lingchang Kong, Jialong Gao, Yanan Chen, Yujing Li

{"title":"Boosted Oxygen Evolution on Iridium through Dual-Interface-Diffusion Generated Oxygen Vacancies in Supporting Tungsten Oxide","authors":"Pin Fang, Yuxiang Wang, Fang Zhang, Zihou Zhang, Ruimin Qin, Yaqiong Su, Lingchang Kong, Jialong Gao, Yanan Chen, Yujing Li","doi":"10.1002/adfm.202501142","DOIUrl":"https://doi.org/10.1002/adfm.202501142","url":null,"abstract":"For oxygen evolution reaction (OER) in proton exchange membrane water electrolyzer (PEMWE), iridium (Ir) remains the primary active component in catalysts, but its high cost and low utilization efficiency pose significant barriers to large-scale deployment. Designing high-performance supported Ir-based catalysts is of urgent necessity. By constructing a hierarchical WO3@TiN supporting material, an Ir/WO3@TiN catalyst is designed with superior OER activity and stability. The optimized Ir/WO3@TiN catalyst exhibits mass activity (MA) up to 920.93 mA mgIr−1, over 20 times that of commercial IrO2. Experimental evidences confirm the facilitated oxygen vacancies induced by the diffusion of Ti and Ir at the interfaces. The membrane electrode assembly (MEA) fabricated with the Ir/WO3@TiN anode catalyst (0.3 mgIr cm−2) can operate at 1.0 A cm−2 with merely 1.60 V (70 °C), with durable operation for over 200 h. Theoretical calculations reveal that the doping of Ti and Ir atoms in WO3 lattice promotes formation of oxygen vacancy, which can optimize the surface electronic structure on Ir and lower the energy barrier of *OOH formation, leading to the boosted OER activity. This work not only introduces new strategies for support design but also shows their great potential for practical applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"37 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806070","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

Au@h-BN Core–Shell Nanostructure as Advanced Shell-Isolated Nanoparticles for In Situ Electrochemical Raman Spectroscopy in Alkaline Environments

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202504706

Jee Hyeon Kim, Jihyun Ra, Younghee Park, Junyeon Yoon, Eunji Lee, Hyunseob Lim

{"title":"Au@h-BN Core–Shell Nanostructure as Advanced Shell-Isolated Nanoparticles for In Situ Electrochemical Raman Spectroscopy in Alkaline Environments","authors":"Jee Hyeon Kim, Jihyun Ra, Younghee Park, Junyeon Yoon, Eunji Lee, Hyunseob Lim","doi":"10.1002/adfm.202504706","DOIUrl":"https://doi.org/10.1002/adfm.202504706","url":null,"abstract":"Recent advancements in in situ electrochemical Raman spectroscopy using shell-isolated nanoparticles have facilitated direct analysis of electrochemical mechanisms. However, shell materials such as SiO2 and Al2O3 commonly adopted for shell-isolated nanoparticle-enhanced Raman spectroscopy are unstable and unreliable in alkaline environments, posing significant obstacles for relevant research in the alkaline environment. While alternative shell materials have been explored, finding suitable replacements for traditional SiO2 shells is still challenging. To address this issue, this study proposes hexagonal boron nitride (h-BN), with atomically ultrathin and insulating properties, as an alternative shell material. Specifically, pinhole-free Au nanoparticles coated by an h-BN shell (Au@h-BN) with a uniform thickness of 1 nm are synthesized through a controlled two-step process. The resulting Au@h-BN exhibits more pronounced Raman scattering and long-term stability under alkaline conditions compared to Au@SiO2. Theoretical simulations support a stronger electromagnetic field distribution around Au@h-BN compared to that around Au@SiO2. In situ Raman studies conducted during electrochemical reactions of Ni and Cu electrodes demonstrate the superior Raman enhancement effect and durability of Au@h-BN compared to Au@SiO2. These results suggest that Au@h-BN holds significant potential for advancing long-term in situ Raman studies in alkaline systems, supporting the development of efficient catalysts for sustainable energy applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"24 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143798540","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

1D Package-Integrated Platinum Catalyst with Robust Interactions for Enhanced Cathodic Oxygen Reduction

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-08 DOI: 10.1002/adfm.202503111

Huiting Niu, Yan Liu, Lei Huang, Lebin Cai, Chenfeng Xia, Ruijuan Qi, Yu Mao, Wei Guo, Ziyun Wang, Bao Yu Xia

{"title":"1D Package-Integrated Platinum Catalyst with Robust Interactions for Enhanced Cathodic Oxygen Reduction","authors":"Huiting Niu, Yan Liu, Lei Huang, Lebin Cai, Chenfeng Xia, Ruijuan Qi, Yu Mao, Wei Guo, Ziyun Wang, Bao Yu Xia","doi":"10.1002/adfm.202503111","DOIUrl":"https://doi.org/10.1002/adfm.202503111","url":null,"abstract":"Durable electrocatalysts and optimal ionomer distribution in cathode catalyst layer (CCL) are crucial for the efficiency and lifetime of proton exchange membrane fuel cells (PEMFCs), especially at high currents. This work presents a 1D package-integrated platinum (Pt) catalyst designed to optimize mass exchange and boost cathodic oxygen reduction reaction (ORR). The package-integrated Pt catalyst not only enhances the active site utilization, activity, and stability of Pt alloys but also optimizes the ionomer coverage and oxygen transport within the CCL. It shows superior performance with a mass activity of 1.33 A mgPt−1 and only a 12 mV decay in half-wave potential after 30 000 cycles. Additionally, it delivers impressive catalytic performance (320 mA cm−2 at 0.8 V), mass transport polarization (0.632 V at 2000 mA cm−2), and low oxygen transport resistance (0.03 s cm−1) in hydrogen-air fuel cells. This package-integrated catalyst with robust anti-ionomer interference and impressive transport capability is of great significance for designing efficient and long-lasting PEMFC cathodes.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"43 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806418","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

Revisiting the Nanofluid Behavior of Polysulfides in Carbon-Based Interlayers: Longitudinal Osmotic Diffusion and Transverse Radiation-Distribution Induced by Mn-Based Catalysts

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-07 DOI: 10.1002/adfm.202504640

Hangqi Yang, Zhaoyang Han, Tianci Ma, Kaiquan He, Chaoqun Shang

{"title":"Revisiting the Nanofluid Behavior of Polysulfides in Carbon-Based Interlayers: Longitudinal Osmotic Diffusion and Transverse Radiation-Distribution Induced by Mn-Based Catalysts","authors":"Hangqi Yang, Zhaoyang Han, Tianci Ma, Kaiquan He, Chaoqun Shang","doi":"10.1002/adfm.202504640","DOIUrl":"https://doi.org/10.1002/adfm.202504640","url":null,"abstract":"Carbon-based interlayer as the secondary current collector is a typical approach for suppressing the polysulfide shuttle effect in lithium-sulfur batteries (LSBs). The effective operating lifespan is determined by the balance between the local polysulfide concentration and bearing capacity of interlayers. However, the microscopic diffusion of polysulfides within interlayers under multiple force fields remains unclear, particularly the effect of catalyst on the multi-scale diffusion behavior. Herein, the first identification is reported of the polysulfide diffusion in interlayer with a coupling effect of longitudinal osmotic and transverse radioactive diffusion through revisiting Mn-based catalysts (Mn-X, X = N, O, or P). In addition to electric field forces during charging and discharging, the free polysulfides sustain transverse tension, leading to radiation diffusion behavior. This adaptive adjustment optimizes polysulfide distribution, mitigating the risk of interlayer deactivation caused by excessive local concentration. The extent of lateral radioactive diffusion is positively correlated with the physicochemical adsorption capacity of catalysts for polysulfides in the interlayer. Specifically, the interlayer with stronger static adsorption for polysulfides demonstrates a broader radiation diffusion range. This work re-evaluates the polysulfide diffusion behavior within the interlayers, further guiding the design of high performance secondary current collector.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"43 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789640","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

3D Lead-Free Double Perovskite via Anchoring A-Site Cation for Ultralow Dose and Stable X-Ray Detection

IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-04-07 DOI: 10.1002/adfm.202505546

Qingshun Fan, Haojie Xu, Zeng-Kui Zhu, Zihao Zhao, Hao Rong, Pengfei Zhu, Wuqian Guo, Liwei Tang, Jingtian Zhang, Junhua Luo, Zhihua Sun

{"title":"3D Lead-Free Double Perovskite via Anchoring A-Site Cation for Ultralow Dose and Stable X-Ray Detection","authors":"Qingshun Fan, Haojie Xu, Zeng-Kui Zhu, Zihao Zhao, Hao Rong, Pengfei Zhu, Wuqian Guo, Liwei Tang, Jingtian Zhang, Junhua Luo, Zhihua Sun","doi":"10.1002/adfm.202505546","DOIUrl":"https://doi.org/10.1002/adfm.202505546","url":null,"abstract":"3D lead-free hybrid double perovskites exhibit remarkable potential for direct X-ray detection owing to their strong photon attenuation capabilities, efficient charge mobility, and low-cost fabrication. However, the development of new 3D double perovskites based on large organic cations remains challenging due to the Goldschmidt tolerance factor constraint, which impedes further exploration of their potential in radiation detection. Herein, a new 3D lead-free double perovskite (Mor)2RbSbI6 (1, Mor = morpholinium) is synthesized, featuring the dense perovskite framework anchored by A-site cations. The high-quality single crystals of 1 present a high mobility-lifetime product (1.52 × 10−3 cm2 V−1) and low dark current drift, enabling it to achieve simultaneously a high sensitivity (1.09 × 104 µC Gyair−1 cm−2) and an ultralow detection limit (3.1 nGyair s−1) under identical operating voltage. Meanwhile, the A-site cation anchoring strategy prevents ion migration-induced structural collapse during X-ray detection, thereby improving its radiation hardness and operating stability. These findings provide crystal structural insights to design new types of perovskite materials for “green” and high-performance radiation detectors.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"183 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789644","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