Peng Hu, Mingyuan Jiang, Jialang Hu, Long Li, Gui Shi, Lvming Jin, Yonggang Zhang, Ziyuan Zhu, Chao Xiong, Hongbing Ji
Targeting an adsorption-based strategy to achieve effective C2H2 purification while synchronously upgrading CO2 effluent from C2H2/CO2 mixtures is a daunting task given their similar physical natures. Herein, an ultramicroporous network with a trifecta of customized functions that can realize efficient C2H2/CO2 separation is reported. Static and kinetic adsorption tests have cooperatively illustrated the potential separation performance. Column breakthrough tests confirm effective C2H2 purification at 298 K, yielding the desired C2H2 purity of 99.9–99.98% and a separation factor of 19.1 for equimolar C2H2/CO2. Notably, food-grade CO2 effluent with a higher purity of ≥99.95% can also be collected. Further, shaped 1a/PAN (PAN = polyacrylonitrile) nanofiber is formed by using an appealing net-fishing-inspired electrospinning (NFIE) strategy to accelerate the diffusion process of guests, as revealed by breakthrough tests. In situ high-resolution synchrotron X-ray diffraction (HRSXRD), simulations, etc. have explicitly unraveled the potential adsorption mechanism. Notably, the structurally stable 1a can be readily synthesized on a kilogram scale using cost-effective raw material (merely $320.3 kg−1), which is of significant importance for industrial applications.
{"title":"Industrially-Driven Ultramicroporous Physisorbent with a Trifecta of Customized Functions for Upgrading C2H2/CO2 Separation Performance","authors":"Peng Hu, Mingyuan Jiang, Jialang Hu, Long Li, Gui Shi, Lvming Jin, Yonggang Zhang, Ziyuan Zhu, Chao Xiong, Hongbing Ji","doi":"10.1002/adfm.202504734","DOIUrl":"https://doi.org/10.1002/adfm.202504734","url":null,"abstract":"Targeting an adsorption-based strategy to achieve effective C<sub>2</sub>H<sub>2</sub> purification while synchronously upgrading CO<sub>2</sub> effluent from C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub> mixtures is a daunting task given their similar physical natures. Herein, an ultramicroporous network with a trifecta of customized functions that can realize efficient C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub> separation is reported. Static and kinetic adsorption tests have cooperatively illustrated the potential separation performance. Column breakthrough tests confirm effective C<sub>2</sub>H<sub>2</sub> purification at 298 K, yielding the desired C<sub>2</sub>H<sub>2</sub> purity of 99.9–99.98% and a separation factor of 19.1 for equimolar C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub>. Notably, food-grade CO<sub>2</sub> effluent with a higher purity of ≥99.95% can also be collected. Further, shaped <b>1a</b>/PAN (PAN = polyacrylonitrile) nanofiber is formed by using an appealing net-fishing-inspired electrospinning (NFIE) strategy to accelerate the diffusion process of guests, as revealed by breakthrough tests. In situ high-resolution synchrotron X-ray diffraction (HRSXRD), simulations, etc. have explicitly unraveled the potential adsorption mechanism. Notably, the structurally stable <b>1a</b> can be readily synthesized on a kilogram scale using cost-effective raw material (merely $320.3 kg<sup>−1</sup>), which is of significant importance for industrial applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"20 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867118","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}
Kaikai Xue, Tongtong Leng, Yilong Wang, Sihua Li, Zihao Li, Zi Li, Junnan Mao, Xuan Wang, Xingxing Zhang, Cai Lin, Bo Lei, Cong Mao
Diabetic wound healing remains a significant challenge, due to chronic inflammatory apoptotic cells accumulation. Herein, an immuno-bioenergy regulated hydrogel (CCE) is reported, which converts apoptotic cells into cytokines that facilitate tissue repair. The CCE consisted of a poly(citrate-curcumin) and erastin cross-linked thermosensitive network, which enhanced efferocytosis in dendritic cells (DCs) by the sustained release of erastin and reinforced the cellular energy metabolism by intracellular release of citrate. With the promoted efferocytosis and increased secretion of anti-inflammatory and pro-reparative cytokines, macrophages are effectively polarized towards M2 phenotype via activation of JAK1/STAT3 pathway, while the damaged function of fibroblasts and endothelial cells under high-glucose conditions is restored. Moreover, the released citrate increased intracellular citrate level, modulating the high glucose-induced energy metabolites disturbances and alleviating mitochondrial dysfunction in endothelial cells. Notably, this combination exhibited a synergistic effect in promoting endothelial cells angiogenesis and immunoregulation ability of macrophages. In a diabetic wound model, CCE hydrogel facilitated the diabetic wounds repair, characterized by a reduced inflammation, enhanced angiogenesis and collagen deposition. These outcomes are attributed to immune microenvironment reconstruction through enhanced efferocytosis-mediated clearance of apoptotic cells and M2 polarization of macrophages. This work presents a novel strategy that leverages efferocytosis and the immune microenvironment modulation to facilitate diabetic wounds healing.
{"title":"Metabolic-Efferocytosis Enabled Hydrogel Synergism Reprograms Immune Microenvironment for Promoting Diabetic Wound Repair","authors":"Kaikai Xue, Tongtong Leng, Yilong Wang, Sihua Li, Zihao Li, Zi Li, Junnan Mao, Xuan Wang, Xingxing Zhang, Cai Lin, Bo Lei, Cong Mao","doi":"10.1002/adfm.202420079","DOIUrl":"https://doi.org/10.1002/adfm.202420079","url":null,"abstract":"Diabetic wound healing remains a significant challenge, due to chronic inflammatory apoptotic cells accumulation. Herein, an immuno-bioenergy regulated hydrogel (CCE) is reported, which converts apoptotic cells into cytokines that facilitate tissue repair. The CCE consisted of a poly(citrate-curcumin) and erastin cross-linked thermosensitive network, which enhanced efferocytosis in dendritic cells (DCs) by the sustained release of erastin and reinforced the cellular energy metabolism by intracellular release of citrate. With the promoted efferocytosis and increased secretion of anti-inflammatory and pro-reparative cytokines, macrophages are effectively polarized towards M2 phenotype via activation of JAK1/STAT3 pathway, while the damaged function of fibroblasts and endothelial cells under high-glucose conditions is restored. Moreover, the released citrate increased intracellular citrate level, modulating the high glucose-induced energy metabolites disturbances and alleviating mitochondrial dysfunction in endothelial cells. Notably, this combination exhibited a synergistic effect in promoting endothelial cells angiogenesis and immunoregulation ability of macrophages. In a diabetic wound model, CCE hydrogel facilitated the diabetic wounds repair, characterized by a reduced inflammation, enhanced angiogenesis and collagen deposition. These outcomes are attributed to immune microenvironment reconstruction through enhanced efferocytosis-mediated clearance of apoptotic cells and M2 polarization of macrophages. This work presents a novel strategy that leverages efferocytosis and the immune microenvironment modulation to facilitate diabetic wounds healing.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"63 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867179","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}
This paper presents the development of an electrochemically-driven variable emission thermoregulating device designed for efficient radiative heat management across various temperature environments. Utilizing the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), the study explores its thermal and electrochemical stability, low vapor pressure, and excellent performance over a wide operational temperature range, making it an ideal electrolyte. The device uses mid-infrared electrochromic technology, employing ultra-wideband transparent conductive electrodes and reversible metal electrodeposition to dynamically adjust thermal emissivity between 0.06 and 0.89. This capability allows for significant improvements in heat management, offering a responsive and adaptable solution compared to current systems. The findings suggest that such advanced materials and mechanisms can enhance energy management in spacecraft, potentially extending to other space fields requiring precise thermal control.
{"title":"Ionic Liquid-Based Reversible Metal Electrodeposition for Adaptive Radiative Thermoregulation Under Extreme Environments","authors":"Jiawei Liang, Chenxi Sui, Jiacheng Tian, Genesis Higueros, Ting-Hsuan Chen, Ronghui Wu, Pei-Jan Hung, Yang Deng, Natalie Rozman, Willie John Padilla, Po-Chun Hsu","doi":"10.1002/adfm.202419087","DOIUrl":"https://doi.org/10.1002/adfm.202419087","url":null,"abstract":"This paper presents the development of an electrochemically-driven variable emission thermoregulating device designed for efficient radiative heat management across various temperature environments. Utilizing the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF<sub>4</sub>), the study explores its thermal and electrochemical stability, low vapor pressure, and excellent performance over a wide operational temperature range, making it an ideal electrolyte. The device uses mid-infrared electrochromic technology, employing ultra-wideband transparent conductive electrodes and reversible metal electrodeposition to dynamically adjust thermal emissivity between 0.06 and 0.89. This capability allows for significant improvements in heat management, offering a responsive and adaptable solution compared to current systems. The findings suggest that such advanced materials and mechanisms can enhance energy management in spacecraft, potentially extending to other space fields requiring precise thermal control.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"13 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867111","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}
Jaewon Shin, Young-Woo Jang, Seung-Han Kang, Jeong-Wan Jo, Jong Wook Shin, Yong-Hoon Kim, Sung Kyu Park, Sung Woon Cho
Conventional gas sensors typically focus on detecting transient gases with critical gas concentrations but lack the ability to detect hazards resulting from cumulative gas exposure. Here, the study demonstrates a dual-mode nitrogen dioxide (NO2) gas sensor utilizing carbon nanotube thin-film transistors, which features a transient detection mode for sensitive detection of transient gas inflow and accumulation detection mode for monitoring cumulative gas exposure, offering efficient and compact analysis of both immediate and prolonged NO2 exposure. The proposed sensor is capable of detecting NO2 gas through the charge trapping and detrapping mechanisms of gas molecules. The unique capability to switch between the transient detection and accumulation recognition modes is achieved via the controlled modulation of electrical bias and ultraviolet light. More importantly, the gate-bias adjustment facilitates precise sensitivity control by regulating the device's electrical properties, while the UV exposure promotes efficient desorption of attached gas molecules. These features may pave the way for the development of multifunctional gas sensors that can perform both real-time detection and long-term exposure monitoring of toxic gases in compact device architectures.
{"title":"An Optoelectrically Switched, Dual-Mode Neuromorphic Sensor for Transient and Accumulative Gas Detection","authors":"Jaewon Shin, Young-Woo Jang, Seung-Han Kang, Jeong-Wan Jo, Jong Wook Shin, Yong-Hoon Kim, Sung Kyu Park, Sung Woon Cho","doi":"10.1002/adfm.202504636","DOIUrl":"https://doi.org/10.1002/adfm.202504636","url":null,"abstract":"Conventional gas sensors typically focus on detecting transient gases with critical gas concentrations but lack the ability to detect hazards resulting from cumulative gas exposure. Here, the study demonstrates a dual-mode nitrogen dioxide (NO<sub>2</sub>) gas sensor utilizing carbon nanotube thin-film transistors, which features a transient detection mode for sensitive detection of transient gas inflow and accumulation detection mode for monitoring cumulative gas exposure, offering efficient and compact analysis of both immediate and prolonged NO<sub>2</sub> exposure. The proposed sensor is capable of detecting NO<sub>2</sub> gas through the charge trapping and detrapping mechanisms of gas molecules. The unique capability to switch between the transient detection and accumulation recognition modes is achieved via the controlled modulation of electrical bias and ultraviolet light. More importantly, the gate-bias adjustment facilitates precise sensitivity control by regulating the device's electrical properties, while the UV exposure promotes efficient desorption of attached gas molecules. These features may pave the way for the development of multifunctional gas sensors that can perform both real-time detection and long-term exposure monitoring of toxic gases in compact device architectures.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"69 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867172","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}
Xinyan Gong, Linzhu Su, Shiyu Peng, Yi Xia, Jiajun Guo, Lanbing Zou, Baixue Fu, Fan Huang, Jianfeng Liu, Cuihong Yang
Biofilms are the root of most chronic and persistent infections and pose a significant threat to human health. Reactive oxygen species (ROS) generation platforms have been used to combat biofilm-associated infections. However, biofilm microenvironments (BME) such as hypoxia and overexpressed antioxidants restrict the efficacy of ROS-based therapies. To address the problem, this study incorporates calcium peroxide (CaO2) and berberine (BBR) into Fe and Zn containing bimetal metal–organic frameworks (FZ) to construct a composite ROS nanogenerator (CBFZ), which is able to remodel BME and further promotes ROS generation for enhance biofilm eradication. CBFZ degrades to release CaO2, Fe3+, Fe2+, and BBR in biofilm, where CaO2 decomposes into O2 and H2O2 to relieve hypoxia, and Fe3+ consumes glutathione (GSH). Subsequently, the remodeled BME boosts the ROS production of the O2-dependent BBR-mediated photodynamic therapy and H2O2-dependent Fe2+-based chemodynamic therapy, and the depleted GSH minimizes ROS scavenging in the meantime, ultimately maintaining a high level of ROS in biofilm. It is demonstrated that CBFZ can effectively eradicate biofilm by killing the embedded bacteria and dispersing the biofilm matrix. Moreover, CBFZ exhibits an outstanding therapeutic effect in a murine model with subcutaneous biofilm infection. Overall, this work offers a propagable strategy to enhance ROS-based antibiofilm therapy.
{"title":"A pH-responsive Cascade Nano-Reactor Elevates ROS Generation by Remodeling Biofilm Microenvironment for Enhanced Antibacterial Treatment","authors":"Xinyan Gong, Linzhu Su, Shiyu Peng, Yi Xia, Jiajun Guo, Lanbing Zou, Baixue Fu, Fan Huang, Jianfeng Liu, Cuihong Yang","doi":"10.1002/adfm.202425467","DOIUrl":"https://doi.org/10.1002/adfm.202425467","url":null,"abstract":"Biofilms are the root of most chronic and persistent infections and pose a significant threat to human health. Reactive oxygen species (ROS) generation platforms have been used to combat biofilm-associated infections. However, biofilm microenvironments (BME) such as hypoxia and overexpressed antioxidants restrict the efficacy of ROS-based therapies. To address the problem, this study incorporates calcium peroxide (CaO<sub>2</sub>) and berberine (BBR) into Fe and Zn containing bimetal metal–organic frameworks (FZ) to construct a composite ROS nanogenerator (CBFZ), which is able to remodel BME and further promotes ROS generation for enhance biofilm eradication. CBFZ degrades to release CaO<sub>2</sub>, Fe<sup>3+</sup>, Fe<sup>2+,</sup> and BBR in biofilm, where CaO<sub>2</sub> decomposes into O<sub>2</sub> and H<sub>2</sub>O<sub>2</sub> to relieve hypoxia, and Fe<sup>3+</sup> consumes glutathione (GSH). Subsequently, the remodeled BME boosts the ROS production of the O<sub>2</sub>-dependent BBR-mediated photodynamic therapy and H<sub>2</sub>O<sub>2</sub>-dependent Fe<sup>2+</sup>-based chemodynamic therapy, and the depleted GSH minimizes ROS scavenging in the meantime, ultimately maintaining a high level of ROS in biofilm. It is demonstrated that CBFZ can effectively eradicate biofilm by killing the embedded bacteria and dispersing the biofilm matrix. Moreover, CBFZ exhibits an outstanding therapeutic effect in a murine model with subcutaneous biofilm infection. Overall, this work offers a propagable strategy to enhance ROS-based antibiofilm therapy.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"32 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867176","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}
Kesterite Cu2ZnSn(S,Se)4 (CZTSSe) has emerged as a highly promising photovoltaic material because of its environmentally friendly characteristics and low cost. However, as a multicomponent inorganic semiconductor material, the complex nature of CZTSSe leads to disorder in the crystallization reaction process at high-temperature selenization, resulting in numerous antisite defects that cause significant non-radiative recombination and open circuit voltage loss of the final photovoltaic device. Therefore, it is a great challenge to fabricate high-quality CZTSSe absorbers with homogeneous chemical composition and uniform cation distribution for achieving high-efficiency solar cells. Herein, synergistic crystallization and uniform cation distribution have been successfully realized via temperature-modulated homogeneous nucleation strategy. This strategy effectively leads to more homogeneous nucleation sites with larger nuclei sizes for high-quality CZTSSe thin films with uniform cation distribution. As a result, high-efficiency CZTSSe solar cells over 14% have been realized. This work reveals the mechanism of uniform nucleation, providing a simple and feasible route for high-quality CZTSSe thin films and high-efficiency CZTSSe solar cells.
{"title":"Temperature-Modulated Nucleation Engineering Enables Uniform Distribution of Cations for Efficient Kesterite Solar Cells","authors":"Lijing Wang, Zucheng Wu, Litao Han, Jintang Ban, Caijing Shang, Zhengji Zhou, Gang Yang, Dandan Zhao, Zhi Zheng, Sixin Wu","doi":"10.1002/adfm.202424870","DOIUrl":"https://doi.org/10.1002/adfm.202424870","url":null,"abstract":"Kesterite Cu<sub>2</sub>ZnSn(S,Se)<sub>4</sub> (CZTSSe) has emerged as a highly promising photovoltaic material because of its environmentally friendly characteristics and low cost. However, as a multicomponent inorganic semiconductor material, the complex nature of CZTSSe leads to disorder in the crystallization reaction process at high-temperature selenization, resulting in numerous antisite defects that cause significant non-radiative recombination and open circuit voltage loss of the final photovoltaic device. Therefore, it is a great challenge to fabricate high-quality CZTSSe absorbers with homogeneous chemical composition and uniform cation distribution for achieving high-efficiency solar cells. Herein, synergistic crystallization and uniform cation distribution have been successfully realized via temperature-modulated homogeneous nucleation strategy. This strategy effectively leads to more homogeneous nucleation sites with larger nuclei sizes for high-quality CZTSSe thin films with uniform cation distribution. As a result, high-efficiency CZTSSe solar cells over 14% have been realized. This work reveals the mechanism of uniform nucleation, providing a simple and feasible route for high-quality CZTSSe thin films and high-efficiency CZTSSe solar cells.","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":"143867145","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}
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}
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