Wang Ran, Jingling Lu, Zeyi Cheng, Tao Yu, Shouzhi Chen, Wenxuan Xu, Shaopeng Rong
The development of 3D macroscopic architectures assembled from inorganic nanoparticles with tailored porous frameworks has garnered substantial attention across academic and industrial domains. These hierarchical structures combine the advantageous features of nanoscale building blocks with macroscopic functionality, offering enhanced surface accessibility and interconnected pathways while preventing nanoparticle reaggregation. This study presents an innovative cross‐linker‐free assembly strategy that enables the rational organization of 1D nanowires into 3D macroscopic architectures, effectively preserving the intrinsic structural advantages of both nanoscale and macroscale components. This methodology employs metal‐cation‐mediated assembly of hydroxylated α‐MnO2 nanowires, where controlled introduction of cations disrupts electrostatic repulsion between nanowires while facilitating interwire connections through cation‐hydroxyl coordination. The strong coordination interaction between metal cations and surface hydroxyl groups on α‐MnO2 nanowires drives the formation of 3D interconnected network architecture, resulting in stable hydrogel formation. Subsequent freeze‐drying of these hydrogels yields aerogel materials demonstrating exceptional adsorption capacities for common indoor air pollutants, achieving 34.1 mg g−1 for ammonia and 21.5 mg g−1 for formaldehyde. This cation‐coordination‐driven assembly approach not only establishes a generalizable framework for designing functional macroscopic assemblies from nanowire building blocks but also expands the potential application landscape for such hierarchical architectures, particularly in environmental remediation technologies.
{"title":"Rapid Self‐Assembly‐Driven Fabrication of 3D Porous Macroscopic Architectures from Manganese Dioxide Nanowire Building Blocks for Enhanced Air Pollutants Abatement","authors":"Wang Ran, Jingling Lu, Zeyi Cheng, Tao Yu, Shouzhi Chen, Wenxuan Xu, Shaopeng Rong","doi":"10.1002/adfm.202505911","DOIUrl":"https://doi.org/10.1002/adfm.202505911","url":null,"abstract":"The development of 3D macroscopic architectures assembled from inorganic nanoparticles with tailored porous frameworks has garnered substantial attention across academic and industrial domains. These hierarchical structures combine the advantageous features of nanoscale building blocks with macroscopic functionality, offering enhanced surface accessibility and interconnected pathways while preventing nanoparticle reaggregation. This study presents an innovative cross‐linker‐free assembly strategy that enables the rational organization of 1D nanowires into 3D macroscopic architectures, effectively preserving the intrinsic structural advantages of both nanoscale and macroscale components. This methodology employs metal‐cation‐mediated assembly of hydroxylated α‐MnO<jats:sub>2</jats:sub> nanowires, where controlled introduction of cations disrupts electrostatic repulsion between nanowires while facilitating interwire connections through cation‐hydroxyl coordination. The strong coordination interaction between metal cations and surface hydroxyl groups on α‐MnO<jats:sub>2</jats:sub> nanowires drives the formation of 3D interconnected network architecture, resulting in stable hydrogel formation. Subsequent freeze‐drying of these hydrogels yields aerogel materials demonstrating exceptional adsorption capacities for common indoor air pollutants, achieving 34.1 mg g<jats:sup>−1</jats:sup> for ammonia and 21.5 mg g<jats:sup>−1</jats:sup> for formaldehyde. This cation‐coordination‐driven assembly approach not only establishes a generalizable framework for designing functional macroscopic assemblies from nanowire building blocks but also expands the potential application landscape for such hierarchical architectures, particularly in environmental remediation technologies.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"7 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866712","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}
Weishan Li, Jinying Wang, Beibei Weng, René Hübner, Jiayao Li, Yu Cui, Yunjun Luo, Yue Hu, Jin‐Hu Dou, Ran Du
As rising stars of the aerogel family, metal aerogels (MAs) manifest broad prospects for combining features of nanostructured metals and aerogels. However, restricted by insufficient mechanistic understanding and limited strategies, the structure‐tailored fabrication of MAs remains challenging. Here, unveiling and utilizing the triple roles (initiator, ligand, and solvent) played by imidazolium‐based ionic liquids (ILs), a robust and universal method is developed, yielding diverse ligament‐size‐tailored MAs at ambient temperature assisted by ILs (down to 0.5 µm, ≈7.7 × 10−6 vol.%). Moreover, the ILs can be recovered by salt‐induced phase separation. Driven by unconventional self‐healing properties, special optical features, and abundant catalytically active sites, the tailor‐made gold aerogels are confirmed as a new generation of self‐recoverable and light‐enhanced catalysts for water remediation.
{"title":"Deciphering the Multi‐Faces of Ionic Liquids: Manipulating Size‐Tailored Gold Aerogels as Recoverable Catalysts for Water Remediation","authors":"Weishan Li, Jinying Wang, Beibei Weng, René Hübner, Jiayao Li, Yu Cui, Yunjun Luo, Yue Hu, Jin‐Hu Dou, Ran Du","doi":"10.1002/adfm.202504385","DOIUrl":"https://doi.org/10.1002/adfm.202504385","url":null,"abstract":"As rising stars of the aerogel family, metal aerogels (MAs) manifest broad prospects for combining features of nanostructured metals and aerogels. However, restricted by insufficient mechanistic understanding and limited strategies, the structure‐tailored fabrication of MAs remains challenging. Here, unveiling and utilizing the triple roles (initiator, ligand, and solvent) played by imidazolium‐based ionic liquids (ILs), a robust and universal method is developed, yielding diverse ligament‐size‐tailored MAs at ambient temperature assisted by ILs (down to 0.5 µ<jats:sc>m</jats:sc>, ≈7.7 × 10<jats:sup>−6</jats:sup> vol.%). Moreover, the ILs can be recovered by salt‐induced phase separation. Driven by unconventional self‐healing properties, special optical features, and abundant catalytically active sites, the tailor‐made gold aerogels are confirmed as a new generation of self‐recoverable and light‐enhanced catalysts for water remediation.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"68 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866714","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}
Reza Esmaeilzadeh, Jamasp Jhabvala, Lucas Schlenger, Mathijs van der Meer, Eric Boillat, Cyril Cayron, Amir Mohammad Jamili, Junfeng Xiao, Roland E. Logé
Laser Powder Bed Fusion (LPBF) stations mostly use lasers with a Gaussian beam intensity distribution, as it has advantages like small divergence and high ability to be focused. This distribution creates significant thermal gradients leading to high cooling rates, which promote the formation of an α’-martensitic structure in Ti-6Al-4V. While this microstructure offers high strength, it sacrifices ductility, necessitating post-processing heat treatments to decompose the α’-martensite into an α+β lamellar structure. However, these post-treatments are time-consuming, and notably transform the part microstructure in a uniform way. In this study, an advanced laser beam shaping module, based on a liquid crystals on silicon-spatial light modulator (LCoS-SLM) is employed, to customize the intensity distribution and reduce the cooling rate with appropriate processing parameters. Thermal camera monitoring, along with finite element modeling (FEM), confirmed a significant reduction in the cooling rate for the tailored beam, compared to the Gaussian profile. This technique is implemented in the LPBF process, resulting in specimens with a mixture of lamellar α+β and α’-martensitic structures site specifically. Beam shaping is thereby shown to provide new degrees of freedom for fine-tuning of microstructures at the melt pool scale, and for LPBF building of 3D architected microstructures.
{"title":"Toward Architected Microstructures Using Advanced Laser Beam Shaping in Laser Powder Bed Fusion of Ti-6Al-4V","authors":"Reza Esmaeilzadeh, Jamasp Jhabvala, Lucas Schlenger, Mathijs van der Meer, Eric Boillat, Cyril Cayron, Amir Mohammad Jamili, Junfeng Xiao, Roland E. Logé","doi":"10.1002/adfm.202420427","DOIUrl":"https://doi.org/10.1002/adfm.202420427","url":null,"abstract":"Laser Powder Bed Fusion (LPBF) stations mostly use lasers with a Gaussian beam intensity distribution, as it has advantages like small divergence and high ability to be focused. This distribution creates significant thermal gradients leading to high cooling rates, which promote the formation of an α’-martensitic structure in Ti-6Al-4V. While this microstructure offers high strength, it sacrifices ductility, necessitating post-processing heat treatments to decompose the α’-martensite into an α+β lamellar structure. However, these post-treatments are time-consuming, and notably transform the part microstructure in a uniform way. In this study, an advanced laser beam shaping module, based on a liquid crystals on silicon-spatial light modulator (LCoS-SLM) is employed, to customize the intensity distribution and reduce the cooling rate with appropriate processing parameters. Thermal camera monitoring, along with finite element modeling (FEM), confirmed a significant reduction in the cooling rate for the tailored beam, compared to the Gaussian profile. This technique is implemented in the LPBF process, resulting in specimens with a mixture of lamellar α+β and α’-martensitic structures site specifically. Beam shaping is thereby shown to provide new degrees of freedom for fine-tuning of microstructures at the melt pool scale, and for LPBF building of 3D architected microstructures.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"68 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867110","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}
Qi Zhang, Liang Tao, Shuting Ma, Xu Jiang, Jie Xu, Jianwei Su, Jian Kang, Huajie Yin, Shan Chen
Perovskite solar cells have demonstrated significant performance advancements over the past decade, characterized by their low-cost fabrication and compatibility with both rigid and flexible substrates. Despite their potential, challenges such as long-term instability and the toxicity of lead in high-performance devices hinder their commercialization. Recently, the perovskite-inspired material Cu2AgBiI6 (CABI) is explored as a light absorber due to its promising optoelectronic properties. However, its wide bandgap and difficulties in producing high-quality films limit its photovoltaic performance. In this study, hypophosphorous acid (H3PO2) is introduced to the CABI precursor solution, generating in situ silver nanoparticles that enhance light absorption through localized surface plasmon resonance. The incorporation of H3PO2 improved the crystallinity and surface morphology of CABI films while reducing defect states. Solvent vapor annealing is further employed to optimize the film quality. As a result, the optimal CABI solar cell achieved a power conversion efficiency of 2.22%, a fourfold increase over the pristine film (0.55%). Additionally, the CABI device demonstrated an efficiency of 5.66% under 1000 lux 6000 K indoor illumination, showcasing its potential for powering Internet of Things devices. This strategy is further validated in the CuAgBiI5 system, offering a pathway to enhance the performance of perovskite-inspired solar cells.
{"title":"Hypophosphorous Acid Additive Engineering for Efficient Cu2AgBiI6 Solar Cells","authors":"Qi Zhang, Liang Tao, Shuting Ma, Xu Jiang, Jie Xu, Jianwei Su, Jian Kang, Huajie Yin, Shan Chen","doi":"10.1002/adfm.202504863","DOIUrl":"https://doi.org/10.1002/adfm.202504863","url":null,"abstract":"Perovskite solar cells have demonstrated significant performance advancements over the past decade, characterized by their low-cost fabrication and compatibility with both rigid and flexible substrates. Despite their potential, challenges such as long-term instability and the toxicity of lead in high-performance devices hinder their commercialization. Recently, the perovskite-inspired material Cu<sub>2</sub>AgBiI<sub>6</sub> (CABI) is explored as a light absorber due to its promising optoelectronic properties. However, its wide bandgap and difficulties in producing high-quality films limit its photovoltaic performance. In this study, hypophosphorous acid (H<sub>3</sub>PO<sub>2</sub>) is introduced to the CABI precursor solution, generating in situ silver nanoparticles that enhance light absorption through localized surface plasmon resonance. The incorporation of H<sub>3</sub>PO<sub>2</sub> improved the crystallinity and surface morphology of CABI films while reducing defect states. Solvent vapor annealing is further employed to optimize the film quality. As a result, the optimal CABI solar cell achieved a power conversion efficiency of 2.22%, a fourfold increase over the pristine film (0.55%). Additionally, the CABI device demonstrated an efficiency of 5.66% under 1000 lux 6000 K indoor illumination, showcasing its potential for powering Internet of Things devices. This strategy is further validated in the CuAgBiI<sub>5</sub> system, offering a pathway to enhance the performance of perovskite-inspired solar cells.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"7 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867170","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}
Le Yang, Yuan Liu, Ran Bi, Yuanhao Chen, Cristian Valenzuela, Yanzhao Yang, Huan Liu, Ling Wang, Wei Feng
The growing demand for miniaturized energy storage devices in next-generation renewable energy applications faces constraints from conventional micro-energy storage systems with fixed geometries, which limit their adaptability and functional integration in technological applications. Traditional fabrication methods, hinder by their complexity and insufficient structural precision, struggle to integrate shape-programmable functionality into compact energy storage devices for complex operating conditions. In this research, an innovative direct ink writing-based (DIW-based) strategy is proposed to co-fabricate liquid crystal elastomers (LCEs) and micro-supercapacitors (MSCs) into a unified electrically controlled, shape-programmable LCE-MSCs. The LCE-MSC integration achieves robust electrochemical performance with charge storage capacity, excellent rate and cycling stability performance. These LCE-MSCs demonstrate rapid, reversible deformation under low-voltage stimulation while retaining stable energy storage performance. By modulating the printing patterns of LCE filaments, diverse configurations of shape-programmable LCE-MSCs can be achieved. Furthermore, integration with sensors enables adaptive devices capable of static object recognition and real-time humidity monitoring. These results underscore the potential of shape-programmable MSCs with seamless power-actuation integration, which can open new opportunity for diverse applications in adaptive robotics, wearable electronics, and autonomous shape-programmable systems.
{"title":"Direct-Ink-Written Shape-Programmable Micro-Supercapacitors with Electrothermal Liquid Crystal Elastomers","authors":"Le Yang, Yuan Liu, Ran Bi, Yuanhao Chen, Cristian Valenzuela, Yanzhao Yang, Huan Liu, Ling Wang, Wei Feng","doi":"10.1002/adfm.202504979","DOIUrl":"https://doi.org/10.1002/adfm.202504979","url":null,"abstract":"The growing demand for miniaturized energy storage devices in next-generation renewable energy applications faces constraints from conventional micro-energy storage systems with fixed geometries, which limit their adaptability and functional integration in technological applications. Traditional fabrication methods, hinder by their complexity and insufficient structural precision, struggle to integrate shape-programmable functionality into compact energy storage devices for complex operating conditions. In this research, an innovative direct ink writing-based (DIW-based) strategy is proposed to co-fabricate liquid crystal elastomers (LCEs) and micro-supercapacitors (MSCs) into a unified electrically controlled, shape-programmable LCE-MSCs. The LCE-MSC integration achieves robust electrochemical performance with charge storage capacity, excellent rate and cycling stability performance. These LCE-MSCs demonstrate rapid, reversible deformation under low-voltage stimulation while retaining stable energy storage performance. By modulating the printing patterns of LCE filaments, diverse configurations of shape-programmable LCE-MSCs can be achieved. Furthermore, integration with sensors enables adaptive devices capable of static object recognition and real-time humidity monitoring. These results underscore the potential of shape-programmable MSCs with seamless power-actuation integration, which can open new opportunity for diverse applications in adaptive robotics, wearable electronics, and autonomous shape-programmable systems.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"42 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143872872","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}
So y. Shin, Donghyeon Han, Soogil Lee, Byong‐Guk Park
Spin‐orbit torque (SOT), arising from spin currents induced by the spin Hall effect, enables the efficient electrical switching of magnetization. However, for practical application in spintronic devices, the switching current must be reduced. Recent studies have shown that the orbital Hall conductivity is much larger than the spin Hall conductivity in various transition metals, prompting investigations to exploit it to enhance SOT switching efficiency. Despite extensive research on orbital currents, a demonstration showing that orbital‐current‐induced torque (OT) surpassed conventional SOT has yet to be reported. In this Article, it is demonstrated that introducing Ti as an orbital current source significantly reduces the switching current of perpendicularly magnetized CoFeB. In Ti/Ta (Pt)/CoFeB/MgO structures, the OT originates from orbital currents generated in the Ti and subsequent conversion into spin currents via the thin Ta (Pt) layer. The OT‐induced switching current in Ti/Ta (or Pt)/CoFeB/MgO is ∼25% lower than that of a conventional SOT structure of Ta/CoFeB/MgO. This enhancement was confirmed by harmonic Hall measurements, showing an effective spin Hall angle of 0.060 in the Ti/Ta/CoFeB/MgO structure, exceeding that of the Ta/CoFeB/MgO structure (0.038). These findings pave the way for utilizing orbital currents in the development of energy efficient spintronic devices.
{"title":"Enhanced Magnetization Switching Efficiency via Orbital‐Current‐Induced Torque in Ti/Ta (Pt)/CoFeB/MgO Structures","authors":"So y. Shin, Donghyeon Han, Soogil Lee, Byong‐Guk Park","doi":"10.1002/adfm.202425932","DOIUrl":"https://doi.org/10.1002/adfm.202425932","url":null,"abstract":"Spin‐orbit torque (SOT), arising from spin currents induced by the spin Hall effect, enables the efficient electrical switching of magnetization. However, for practical application in spintronic devices, the switching current must be reduced. Recent studies have shown that the orbital Hall conductivity is much larger than the spin Hall conductivity in various transition metals, prompting investigations to exploit it to enhance SOT switching efficiency. Despite extensive research on orbital currents, a demonstration showing that orbital‐current‐induced torque (OT) surpassed conventional SOT has yet to be reported. In this Article, it is demonstrated that introducing Ti as an orbital current source significantly reduces the switching current of perpendicularly magnetized CoFeB. In Ti/Ta (Pt)/CoFeB/MgO structures, the OT originates from orbital currents generated in the Ti and subsequent conversion into spin currents via the thin Ta (Pt) layer. The OT‐induced switching current in Ti/Ta (or Pt)/CoFeB/MgO is ∼25% lower than that of a conventional SOT structure of Ta/CoFeB/MgO. This enhancement was confirmed by harmonic Hall measurements, showing an effective spin Hall angle of 0.060 in the Ti/Ta/CoFeB/MgO structure, exceeding that of the Ta/CoFeB/MgO structure (0.038). These findings pave the way for utilizing orbital currents in the development of energy efficient spintronic devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"68 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866711","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}
Exploring non-BiSbTe thermoelectric (TE) materials operable in the near room temperature range has emerged as a vibrant research frontier. However, the current synthesis of such materials heavily relies on energy-intensive techniques, with harsh conditions and the use of toxic reagents. In this work, a scalable, safe, simple, and cost-effective solution-based method is reported for synthesizing β-CuAgSe materials with a topologically dendritic structure. Notably, the synthesized material's surface is free from the complex organic ligands typically left by conventional synthesis methods, which mitigates the electrical performance degradation due to the intricate structure. Meanwhile, the multi-scale phonon scattering induced by the complex structure leads to a reduction in thermal conductivity. As a result, the material achieves a maximum ZTmax of 0.48 at 298K and ZTave of 0.42 in the 298–348K range, surpassing other doped CuAgSe materials and ranking among the top in various materials synthesized via solvothermal methods. The successful fabrication of thermoelectric devices (TED) enhanced with integrated radiative cooling and TE pastes formulated from these materials demonstrates their potential for applications in flexible TE.
{"title":"Ligand-Free Multi-Scale CuAgSe Micro-Nanoparticles with a Dendritic Structure for Application as a Room Temperature Thermoelectric Material","authors":"Xinxing Zhou, Kerui Li, Chengyi Hou, Qinghong Zhang, Yaogang Li, Hongzhi Wang","doi":"10.1002/adfm.202505741","DOIUrl":"https://doi.org/10.1002/adfm.202505741","url":null,"abstract":"Exploring non-BiSbTe thermoelectric (TE) materials operable in the near room temperature range has emerged as a vibrant research frontier. However, the current synthesis of such materials heavily relies on energy-intensive techniques, with harsh conditions and the use of toxic reagents. In this work, a scalable, safe, simple, and cost-effective solution-based method is reported for synthesizing <i>β</i>-CuAgSe materials with a topologically dendritic structure. Notably, the synthesized material's surface is free from the complex organic ligands typically left by conventional synthesis methods, which mitigates the electrical performance degradation due to the intricate structure. Meanwhile, the multi-scale phonon scattering induced by the complex structure leads to a reduction in thermal conductivity. As a result, the material achieves a maximum ZT<sub>max</sub> of 0.48 at 298K and ZT<sub>ave</sub> of 0.42 in the 298–348K range, surpassing other doped CuAgSe materials and ranking among the top in various materials synthesized via solvothermal methods. The successful fabrication of thermoelectric devices (TED) enhanced with integrated radiative cooling and TE pastes formulated from these materials demonstrates their potential for applications in flexible TE.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"15 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867062","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}
Qingmei Xu, Kun Fu, Zhixin Liu, Tingting Sun, Lianbin Xu, Xu Ding, Lei Gong, Qi Yu, Jianzhuang Jiang
Covalent organic frameworks (COFs) have latterly emerged as a promising platform for devising electrode materials used to acquire high-performance lithium-ion batteries (LIBs). However, the preparation of COFs with fast redox kinetics, high-efficiency utilization of active sites, superior stability, and high conductivity remains a challenge. Herein, a thiophene-based bipolar-type COFs (denoted as TT-TPDA-COF) featuring extended conjugation, rich multiple redox-active sites (C─S, C─N, and C═N), and hierarchical micro-mesoporosity is synthesized. TT-TPDA-COF exhibits significantly increased density of redox-active sites and enhanced electrical conductivity compared with its corresponding counterpart (Np-TPDA-COF). Remarkably, when TT-TPDA-COF is used as LIBs cathode, it shows exceptional specific capacity up to 309 mA h g−1 at 200 mA g−1, significantly surpassing that of Np-TPDA-COF (195 mA h g−1 at 200 mA g−1), high energy density of 714 W h kg−1, superb rate property (182 mA h g−1 at 5000 mA g−1), and impressive capacity preservation of 84.3% after 5000 cycles at 5000 mA g−1. Additionally, the predictable application of TT-TPDA-COF for prototype batteries has been proved by the high-performance dual-ion full cells assembled by using TT-TPDA-COF as cathode. Furthermore, the dual-ion storage mechanism of TT-TPDA-COF is comprehensively revealed by in/-ex situ studies and theoretical calculations.
{"title":"Thiophene-Based Bipolar-Type Covalent Organic Frameworks with Extended π-Conjugation as Superior Cathode for Lithium-Ion Batteries","authors":"Qingmei Xu, Kun Fu, Zhixin Liu, Tingting Sun, Lianbin Xu, Xu Ding, Lei Gong, Qi Yu, Jianzhuang Jiang","doi":"10.1002/adfm.202506111","DOIUrl":"https://doi.org/10.1002/adfm.202506111","url":null,"abstract":"Covalent organic frameworks (COFs) have latterly emerged as a promising platform for devising electrode materials used to acquire high-performance lithium-ion batteries (LIBs). However, the preparation of COFs with fast redox kinetics, high-efficiency utilization of active sites, superior stability, and high conductivity remains a challenge. Herein, a thiophene-based bipolar-type COFs (denoted as TT-TPDA-COF) featuring extended conjugation, rich multiple redox-active sites (C─S, C─N, and C═N), and hierarchical micro-mesoporosity is synthesized. TT-TPDA-COF exhibits significantly increased density of redox-active sites and enhanced electrical conductivity compared with its corresponding counterpart (Np-TPDA-COF). Remarkably, when TT-TPDA-COF is used as LIBs cathode, it shows exceptional specific capacity up to 309 mA h g<sup>−1</sup> at 200 mA g<sup>−1</sup>, significantly surpassing that of Np-TPDA-COF (195 mA h g<sup>−1</sup> at 200 mA g<sup>−1</sup>), high energy density of 714 W h kg<sup>−1</sup>, superb rate property (182 mA h g<sup>−1</sup> at 5000 mA g<sup>−1</sup>), and impressive capacity preservation of 84.3% after 5000 cycles at 5000 mA g<sup>−1</sup>. Additionally, the predictable application of TT-TPDA-COF for prototype batteries has been proved by the high-performance dual-ion full cells assembled by using TT-TPDA-COF as cathode. Furthermore, the dual-ion storage mechanism of TT-TPDA-COF is comprehensively revealed by in/-ex situ studies and theoretical calculations.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"7 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867178","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}
Zhenyu Zhang, Yuanduo Qu, Siran Chen, Shanwu Ke, Mengdi Hao, Yongyue Xiao, Shuai Zhang, Ziqiang Cheng, Jiangrong Xiao, Hao Huang, Cong Ye, Paul K. Chu, Xue-Feng Yu, Jiahong Wang
Tunable Artificial Synapses
In article number 2416794, Hao Huang, Jiahong Wang, and co-workers, inspired by scale armor structure, create phosphorylated graphene nanoflakes to construct a dense resistance-switching layer in memristors. By modifying the coordination between phosphate groups and silver ions, the memristors demonstrate volatile or non-volatile properties, as verified through conductive AFM mapping.
{"title":"Phosphorylation Enables Nano-Graphene for Tunable Artificial Synapses (Adv. Funct. Mater. 16/2025)","authors":"Zhenyu Zhang, Yuanduo Qu, Siran Chen, Shanwu Ke, Mengdi Hao, Yongyue Xiao, Shuai Zhang, Ziqiang Cheng, Jiangrong Xiao, Hao Huang, Cong Ye, Paul K. Chu, Xue-Feng Yu, Jiahong Wang","doi":"10.1002/adfm.202570096","DOIUrl":"https://doi.org/10.1002/adfm.202570096","url":null,"abstract":"<p><b>Tunable Artificial Synapses</b></p><p>In article number 2416794, Hao Huang, Jiahong Wang, and co-workers, inspired by scale armor structure, create phosphorylated graphene nanoflakes to construct a dense resistance-switching layer in memristors. By modifying the coordination between phosphate groups and silver ions, the memristors demonstrate volatile or non-volatile properties, as verified through conductive AFM mapping.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"35 16","pages":""},"PeriodicalIF":18.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.202570096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhao Zhang, Debin Cheng, Dong Liu, Jingyi Dang, Xiaohe Wang, Hong Wu, Hongbin Fan
Bioengineered Versatile Heterojunctions
In article number 2419400, Hongbin Fan and co-workers showcase bioengineered versatile heterojunctions consisting of MPN and 2D MBene. The bio-heterojunctions have excellent enzyme mimicking, cartilage-targeting, and responsive releasing properties for the treatment of osteoarthritis. Mechanistically, the bio-heterojunction can block the Perk-eIF2α mediated integrated stress response to prevent cartilage matrix degradation and ferroptosis.
{"title":"Bioengineered Versatile Heterojunctions as Stress Busters Targeting Matrix Degradation and Ferroptosis for Osteoarthritis Therapy (Adv. Funct. Mater. 16/2025)","authors":"Zhao Zhang, Debin Cheng, Dong Liu, Jingyi Dang, Xiaohe Wang, Hong Wu, Hongbin Fan","doi":"10.1002/adfm.202570094","DOIUrl":"https://doi.org/10.1002/adfm.202570094","url":null,"abstract":"<p><b>Bioengineered Versatile Heterojunctions</b></p><p>In article number 2419400, Hongbin Fan and co-workers showcase bioengineered versatile heterojunctions consisting of MPN and 2D MBene. The bio-heterojunctions have excellent enzyme mimicking, cartilage-targeting, and responsive releasing properties for the treatment of osteoarthritis. Mechanistically, the bio-heterojunction can block the Perk-eIF2α mediated integrated stress response to prevent cartilage matrix degradation and ferroptosis.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"35 16","pages":""},"PeriodicalIF":18.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.202570094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：