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Li C, Zhang G, Wang Y, Lin L, Ken Ostrikov K. Rational synthesis of methylsilsesquioxane aerogels addressing thermal load and compression recovery issues in Li-ion batteries. J Colloid Interface Sci 2024; 669:157-174. [PMID: 38713955 DOI: 10.1016/j.jcis.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 04/25/2024] [Accepted: 05/01/2024] [Indexed: 05/09/2024]
Abstract
Li-ion batteries suffer from two key safety issues: thermal overload and compression recovery, which may lead to flammability and mechanical failure. Silica aerogels are promising solutions to both these issues owing to their excellent thermal stability and tailored mechanical properties. However, finding the optimum sol composition in sol-gel-based aerogel synthesis is needed to address these issues at industry-relevant scales. Here, we propose an innovative approach to determine the optimum sol composition for methylsilsesquioxane (MSQ) aerogel sheets, which is based on the mechanisms of the effects of molar ratios of hydrolysis water and isopropyl alcohol (IPA) to methyltrimethoxysilane (MTMS) on the physical properties of MSQ aerogel sheets and according to the ternary contour distribution of their properties. The synthesized MSQ aerogels exhibited a soft, light, and powderless texture and featured superhydrophobic properties (150.2°), low thermal conductivity of 33.6 mW/(m·K), high thermal stability temperature in nitrogen atmosphere at 479.3 °C and moderate short-term (<6 h) service temperature of 120.0 °C. Significantly, the structural stability and elasticity of the aerogels surpassed the current state-of-the-art, showing recovery to 81.3 % of the original thickness and 85.2 % of the original stress after being subjected to 400 cycles of high-speed and high-strain consecutive compression, respectively. These excellent properties make the MSQ aerogel sheets promising for applications in thermal load and compression recovery management of diverse energy storage devices, including batteries for next-generation electric vehicles.
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Affiliation(s)
- Chengdong Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
| | - Guihua Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yuxiang Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Liangliang Lin
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
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2
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Xu Z, Liu Y, Xin Q, Dai J, Yu J, Cheng L, Liu YT, Ding B. Ceramic Meta-Aerogel with Thermal Superinsulation up to 1700 °C Constructed by Self-Crosslinked Nanofibrous Network via Reaction Electrospinning. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401299. [PMID: 38837520 DOI: 10.1002/adma.202401299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/08/2024] [Indexed: 06/07/2024]
Abstract
Thermal insulation under extreme conditions requires the materials to be capable of withstanding complex thermo-mechanical stress, significant gradient temperature transition, and high-frequency thermal shock. The excellent structural and functional properties of ceramic aerogels make them attractive for thermal insulation. However, in extremely high-temperature environments (above 1500 °C), they typically exhibit limited insulation capacity and thermo-mechanical stability, which may lead to catastrophic accidents, and this problem is never effectively addressed. Here, a novel ceramic meta-aerogel constructed from a crosslinked nanofiber network using a reaction electrospinning strategy, which ensures excellent thermo-mechanical stability and superinsulation under extreme conditions, is designed. The ceramic meta-aerogel has an ultralow thermal conductivity of 0.027 W m-1 k-1, and the cold surface temperature is only 303 °C in a 1700 °C high-temperature environment. After undergoing a significant gradient temperature transition from liquid nitrogen to 1700 °C flame burning, the ceramic meta-aerogel can still withstand thousands of shears, flexures, compressions, and other complex forms of mechanical action without structural collapse. This work provides a new insight for developing ceramic aerogels that can be used for a long period in extremely high-temperature environments.
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Affiliation(s)
- Zhen Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Yiming Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Qi Xin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Jin Dai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Longdi Cheng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Yi-Tao Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Innovation Center for Textile Science and Tehnology, Donghua University, Shanghai, 201620, China
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3
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Pang K, Ma J, Song X, Liu X, Zhang C, Gao Y, Li K, Liu Y, Peng Y, Xu Z, Gao C. Highly Flexible and Superelastic Graphene Nanofibrous Aerogels for Intelligent Sign Language. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400415. [PMID: 38698600 DOI: 10.1002/smll.202400415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Indexed: 05/05/2024]
Abstract
Highly flexible and superelastic aerogels at large deformation have become urgent mechanical demands in practical uses, but both properties are usually exclusive. Here a trans-scale porosity design is proposed in graphene nanofibrous aerogels (GNFAs) to break the trade-off between high flexibility and superelasticity. The resulting GNFAs can completely recover after 1000 fatigue cycles at 60% folding strain, and notably maintain excellent structural integrity after 10000 cycles at 90% compressive strain, outperforming most of the reported aerogels. The mechanical robustness is demonstrated to be derived from the trans-scale porous structure, which is composed of hyperbolic micropores and porous nanofibers to enable the large elastic deformation capability. It is further revealed that flexible and superelastic GNFAs exhibit high sensitivity and ultrastability as an electrical sensors to detect tension and flexion deformation. As proof, The GNFA sensor is implemented onto a human finger and achieves the intelligent recognition of sign language with high accuracy by multi-layer artificial neural network. This study proposes a highly flexible and elastic graphene aerogel for wearable human-machine interfaces in sensor technology.
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Affiliation(s)
- Kai Pang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Jingyu Ma
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Xian Song
- Department of Sports Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Xiaoting Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Chengqi Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Yue Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Kaiwen Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Yingjun Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Yuxin Peng
- Department of Sports Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Zhen Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030032, P. R. China
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4
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Feng Y, Guo Y, Li X, Zhang L, Yan J. Continuous Rapid Fabrication of Ceramic Fiber Sponge Aerogels with High Thermomechanical Properties via a Green and Low-Cost Electrospinning Technique. ACS NANO 2024; 18:19054-19063. [PMID: 38976394 DOI: 10.1021/acsnano.4c03303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Ceramic aerogel is an appealing fireproof and heat-insulation material, but synchronously improving its mechanical and thermal properties is a challenge. Moreover, the expensive discontinuous processing techniques inhibit the large-scale fabrication of ceramic aerogels. Here, we propose a water-based electrospinning method, based on the hydrolysis and condensation reactions of ceramic precursor salts themselves, for the continuous and rapid (0.025 m3/min) fabrication of ceramic fiber sponge aerogels with dual micronano fiber networks, which show synchronous enhanced fireproof, thermal insulation, and resilience performance. The elastic ceramic micro/nano fiber sponge aerogels contain robust silica-based microfibers as a firm skeleton and alumina-based nanofibers as elastic thermal insulation filler. The sponges have a high porosity of >99.8%, a low mass density (6.21 mg/cm3), a small thermal conductivity (0.022 W/m·K), and a large compression strength (21.15 kPa at 80% strain). The ceramic fiber sponges can effectively prevent the propagation of thermal runaway when a lithium battery experiences catastrophic thermal shock (>1000 °C) in the power battery packs. The proposed strategy is feasible for low-cost and rapid synthesizing ceramic aerogels toward effective battery thermal management.
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Affiliation(s)
- Yan Feng
- Shanghai Frontier Science Research Center for Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yongshi Guo
- Shanghai Frontier Science Research Center for Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xinyu Li
- Shanghai Frontier Science Research Center for Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Liang Zhang
- Shanghai Frontier Science Research Center for Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianhua Yan
- Shanghai Frontier Science Research Center for Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
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5
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Wang W, Fu Q, Ge J, Xu S, Liu Q, Zhang J, Shan H. Advancements in Thermal Insulation through Ceramic Micro-Nanofiber Materials. Molecules 2024; 29:2279. [PMID: 38792141 PMCID: PMC11124260 DOI: 10.3390/molecules29102279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/01/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Ceramic fibers have the advantages of high temperature resistance, light weight, favorable chemical stability and superior mechanical vibration resistance, which make them widely used in aerospace, energy, metallurgy, construction, personal protection and other thermal protection fields. Further refinement of the diameter of conventional ceramic fibers to microns or nanometers could further improve their thermal insulation performance and realize the transition from brittleness to flexibility. Processing traditional two-dimensional (2D) ceramic fiber membranes into three-dimensional (3D) ceramic fiber aerogels could further increase porosity, reduce bulk density, and reduce solid heat conduction, thereby improving thermal insulation performance and expanding application areas. Here, a comprehensive review of the newly emerging 2D ceramic micro-nanofiber membranes and 3D ceramic micro-nanofiber aerogels is demonstrated, starting from the presentation of the thermal insulation mechanism of ceramic fibers, followed by the summary of 2D ceramic micro-nanofiber membranes according to different types, and then the generalization of the construction strategies for 3D ceramic micro-nanofiber aerogels. Finally, the current challenges, possible solutions, and future prospects of ceramic micro-nanofiber materials are comprehensively discussed. We anticipate that this review could provide some valuable insights for the future development of ceramic micro-nanofiber materials for high temperature thermal insulation.
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Affiliation(s)
- Wenqiang Wang
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
| | - Qiuxia Fu
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
| | - Jianlong Ge
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
| | - Sijun Xu
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
| | - Qixia Liu
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
| | - Junxiong Zhang
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
| | - Haoru Shan
- School of Textile and Clothing, Nantong University, Nantong 226019, China; (W.W.); (Q.F.); (J.G.); (S.X.); (J.Z.)
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, China
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6
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Li L, Zhou Y, Gao Y, Feng X, Zhang F, Li W, Zhu B, Tian Z, Fan P, Zhong M, Niu H, Zhao S, Wei X, Zhu J, Wu H. Large-scale assembly of isotropic nanofiber aerogels based on columnar-equiaxed crystal transition. Nat Commun 2023; 14:5410. [PMID: 37670012 PMCID: PMC10480443 DOI: 10.1038/s41467-023-41087-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 08/17/2023] [Indexed: 09/07/2023] Open
Abstract
Ice-templating technology holds great potential to construct industrial porous materials from nanometers to the macroscopic scale for tailoring thermal, electronic, or acoustic transport. Herein, we describe a general ice-templating technology through freezing the material on a rotating cryogenic drum surface, crushing it, and then re-casting the nanofiber slurry. Through decoupling the ice nucleation and growth processes, we achieved the columnar-equiaxed crystal transition in the freezing procedure. The highly random stacking and integrating of equiaxed ice crystals can organize nanofibers into thousands of repeating microscale units with a tortuous channel topology. Owing to the spatially well-defined isotropic structure, the obtained Al2O3·SiO2 nanofiber aerogels exhibit ultralow thermal conductivity, superelasticity, good damage tolerance, and fatigue resistance. These features, together with their natural stability up to 1200 °C, make them highly robust for thermal insulation under extreme thermomechanical environments. Cascading thermal runaway propagation in a high-capacity lithium-ion battery module consisting of LiNi0.8Co0.1Mn0.1O2 cathode, with ultrahigh thermal shock power of 215 kW, can be completely prevented by a thin nanofiber aerogel layer. These findings not only establish a general production route for nanomaterial assemblies that is conventionally challenging, but also demonstrate a high-energy-density battery module configuration with a high safety standard that is critical for practical applications.
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Affiliation(s)
- Lei Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
- National Engineering Research Center of Electric Vehicles, Beijing Institute of Technology, 100081, Beijing, China
| | - Yiqian Zhou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
| | - Yang Gao
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, 100871, Beijing, China
| | - Xuning Feng
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, 100084, Beijing, China
| | - Fangshu Zhang
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, 100084, Beijing, China
| | - Weiwei Li
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, 030051, China.
| | - Bin Zhu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210008, China
| | - Ze Tian
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
| | - Peixun Fan
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
| | - Minlin Zhong
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
| | - Huichang Niu
- Guangdong Huitian Aerospace Technology Co., Ltd, Guangzhou, 510006, China
| | - Shanyu Zhao
- Laboratory for Building Energy Materials and Components, Swiss Federal Laboratories for Materials Science and Technology, Empa, 8600, Dübendorf, Switzerland
| | - Xiaoding Wei
- State Key Laboratory for Turbulence and Complex System, Department of Mechanics and Engineering Science, College of Engineering, Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, 100871, Beijing, China.
| | - Jia Zhu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210008, China.
| | - Hui Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China.
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7
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Liu H, Zhang L, Guan J, Ding J, Wang B, Liu M, Li D, Xia Y. Fabrication of a lamellar alginate-based aerogel decorated with carbon quantum dots for controlled fluorescence behaviors. RSC Adv 2023; 13:15174-15181. [PMID: 37213347 PMCID: PMC10193201 DOI: 10.1039/d3ra02019c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/11/2023] [Indexed: 05/23/2023] Open
Abstract
This study aimed to construct an alginate aerogel doped with carbon quantum dots and investigate the fluorescence properties of the composites. The carbon quantum dots with the highest fluorescence intensity were obtained using a methanol-water ratio of 1 : 1, a reaction time of 90 minutes, and a reaction temperature of 160 °C. The fluorescent carbon quantum dot sodium alginate-based aerogel (FCSA) obtained by compounding alginate and carbon quantum dots exhibited excellent fluorescence properties when the concentration of nano-carbon quantum dot solution was 10.0 vol%. By incorporating nano-carbon quantum dots, the fluorescence properties of the lamellar alginate aerogel can be easily and efficiently adjusted. The alginate aerogel decorated with nano-carbon quantum dots exhibits promising potential in biomedical applications due to its biodegradable, biocompatible, and sustainable properties.
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Affiliation(s)
- Haibing Liu
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
| | - Lin Zhang
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
| | - Jie Guan
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
| | - Junhang Ding
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences Qingdao 266071 P. R. China
| | - Bingbing Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
| | - Ming Liu
- College of Tourism and Geographical Science, Qingdao University Qingdao 266071 P. R. China
| | - Daohao Li
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
| | - Yanzhi Xia
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, College of Textiles and Clothing, Shandong Collaborative Innovation Center of Marine Bio-based Fibers and Ecological Textiles, Institute of Functional Textiles and Advanced Materials, Qingdao University Qingdao 266071 P. R. China
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8
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Liu YT, Ding B. Ultralight and superelastic ceramic nanofibrous aerogels: a new vision of an ancient material. Sci Bull (Beijing) 2023; 68:753-755. [PMID: 37005187 DOI: 10.1016/j.scib.2023.03.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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9
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Yang H, Wang P, Yang Q, Wang D, Wang Y, Kuai L, Wang Z. Superelastic and multifunctional fibroin aerogels from multiscale silk micro-nanofibrils exfoliated via deep eutectic solvent. Int J Biol Macromol 2023; 224:1412-1422. [PMID: 36550790 DOI: 10.1016/j.ijbiomac.2022.10.228] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 11/05/2022]
Abstract
Superelastic silk fibroin (SF)-based aerogels can be used as multifunctional substrates, exhibiting a promising prospect in air filtration, thermal insulation, and biomedical materials. However, fabrication of the superelastic pure SF aerogels without adding synthetic polymers remains challenging. Here, the SF micro-nano fibrils (SMNFs) that preserved mesostructures are extracted from SF fibers as building blocks of aerogels by a controllable deep eutectic solvent liquid exfoliation technique. SMNFs can assemble into multiscale fibril networks during the freeze-inducing process, resulting in all-natural SMNF aerogels (SMNFAs) with hierarchical cellular architectures after lyophilization. Benefiting from these structural features, the SMNFAs demonstrate desirable properties including ultra-low density (as low as 4.71 mg/cm3) and superelasticity (over 85 % stress retention after 100 compression cycles at 60 % strain). Furthermore, the potential applications of superelastic SMNFAs in air purification and thermal insulation are investigated to exhibit their functionality, mechanical elasticity, and structural stability. This work provides a reliable approach for the fabrication of highly elastic SF aerogels and endows application prospects in air purification and thermal insulation opportunities.
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Affiliation(s)
- Haiwei Yang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Peng Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Qiliang Yang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Dengfeng Wang
- School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Yong Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Long Kuai
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China; School of Chemical and Environmental Engineering, Anhui Laboratory of Clean Catalytic Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Zongqian Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
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10
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Lu D, Zhuang L, Zhang J, Su L, Niu M, Yang Y, Xu L, Guo P, Cai Z, Li M, Peng K, Wang H. Lightweight and Strong Ceramic Network with Exceptional Damage Tolerance. ACS NANO 2022; 17:1166-1173. [PMID: 36521017 DOI: 10.1021/acsnano.2c08679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Lightweight materials such as porous ceramics have attracted increasing attention for applications in energy conservation, aerospace and automobile industries. However, porous ceramics are usually weak and brittle; in particular, tiny defects could cause catastrophic failure, which affects their reliability and limits the potential use greatly. Here we report a SiC/SiO2 nanowire network constructed from numerous well-bonded SiC nanowires coated by a biphasic structure consisting of amorphous SiO2 and nanocrystal SiC. The as-obtained SiC/SiO2 nanowire network is lightweight (360 ± 10 mg cm-3), mechanically strong (compressive strength of 16 MPa), and damage-tolerant. The high strength of the network is attributed to the biphasic mixed structure of the binding coating which can restrict the deformation of nanowires upon compression. The lightweight and strong SiC/SiO2 nanowire network shows potential for engineering applications in harsh environments.
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Affiliation(s)
- De Lu
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Lei Zhuang
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Jijun Zhang
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Lei Su
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Min Niu
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Yuhang Yang
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Liang Xu
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Pengfei Guo
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Zhixin Cai
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Mingzhu Li
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Kang Peng
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
| | - Hongjie Wang
- State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong University, Xi'an, 710049, China
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11
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Facile synthesis of super-thermal insulating polyimide aerogel-like films. iScience 2022; 25:105641. [PMID: 36505928 PMCID: PMC9732405 DOI: 10.1016/j.isci.2022.105641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/05/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Thermal superinsulation materials play a key role in reducing energy consumption. In this article, flexible polyimide aerogel-like films are developed by a facile non-solvent-induced phase separation combined with ambient drying method. The pore structure and insulation properties are well controlled by changing the compositions of the coagulation bath. Polyimide films with macro-nano hierarchical pore structure and uniform nanopores are prepared by adjusting the content of water and alcohol as the non-solvent. The relationship between the insulation performance and textured structure of polyimide was studied. After optimization, the produced film achieved a low thermal conductivity of 0.019 W⋅m-1·K-1 but good tensile strength of 89.6 MPa, compared favorably with literature results. Hence, this article demonstrates that application of the facile phase inversion method to prepare porous polymers can be expanded from desalination or gas separation fields to insulation for energy-saving purposes.
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12
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Zheng S, Jiang L, Chang F, Zhang C, Ma N, Liu X. Mechanically Strong and Thermally Stable Chemical Cross-Linked Polyimide Aerogels for Thermal Insulator. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50129-50141. [PMID: 36308398 DOI: 10.1021/acsami.2c14007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
High-performance thermal insulating materials are highly desirable in several fields, especially for thermal insulation of buildings to reduce energy consumption. Owing to the remarkable thermal stability, high porosity, low density, and outstanding mechanical features, polyimide (PI) aerogels have attracted great attention. In this work, chemical cross-linked PI (CCPI) aerogels were fabricated via freeze-drying and thermal imidization, which possess outstanding mechanical properties, good thermal stability, and excellent thermal insulation characteristics. The chemically cross-linked structure can effectively inhibit shrinkage, while retaining the structural integrity, resulting in the lower density and lower shrinkage of the materials. In this paper, completely imidized and highly cross-linked polyimide aerogels were synthesized by using p-phenylenediamine (PDA), 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA), and the cross-linker 2,3,6,7,14,15-hexaaminotriptycene (HMT). The CCPI aerogels with excellent properties, such as covalently cross-linked chemical structure, low density (0.069 g/cm3), low volume shrinkage (10%), high decomposition temperature (Td5% = 587 °C), and low thermal conductivity (25 mW m-1K-1) are in high demand in the field of thermal insulation. This work furnishes a new method for the development of polymer-based thermal insulation materials for various prospective applications.
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Affiliation(s)
- Shuai Zheng
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Lei Jiang
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Fan Chang
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
- Institute of System Engineering, Beijing, China100010
| | - Changqi Zhang
- Institute of System Engineering, Beijing, China100010
| | - Ning Ma
- School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China150001
| | - Xueqiang Liu
- Institute of System Engineering, Beijing, China100010
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13
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Liu S, Dun C, Chen J, Rao S, Shah M, Wei J, Chen K, Xuan Z, Kyriakidou EA, Urban JJ, Swihart MT. A General Route to Flame Aerosol Synthesis and In Situ Functionalization of Mesoporous Silica. Angew Chem Int Ed Engl 2022; 61:e202206870. [DOI: 10.1002/anie.202206870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Shuo Liu
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Chaochao Dun
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Junjie Chen
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Satyarit Rao
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Mihir Shah
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Jilun Wei
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Kaiwen Chen
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Zhengxi Xuan
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
- RENEW Institute University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Eleni A. Kyriakidou
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
| | - Jeffrey J. Urban
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Mark T. Swihart
- Department of Chemical and Biological Engineering University at Buffalo (SUNY) Buffalo NY 14260 USA
- RENEW Institute University at Buffalo (SUNY) Buffalo NY 14260 USA
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14
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Xiong L, Zheng W, Cao S, Zheng Y. Organic–Inorganic Double-Gel System Thermally Insulating and Hydrophobic Polyimide Aerogel. Polymers (Basel) 2022; 14:polym14142818. [PMID: 35890593 PMCID: PMC9321330 DOI: 10.3390/polym14142818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/03/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
Aerogel materials are used in various fields, but there is a shortage of aerogel materials with an excellent combination of mechanical properties, thermal stability, and easy preparation. In this study, polyimide aerogel materials with superior mechanical properties, thermal stability, and low thermal conductivity were prepared by forming a double-gel system in the liquid phase. The amino-modified gel, prepared by coating SiO2 nano-microspheres with GO through a modified sol-gel method (SiO2@GO-NH2), was subsequently homogeneously dispersed with PAA wet gel in water to form a double-gel system. The construction of a double-gel system enabled the PI aerogel to shape a unique honeycomb porous structure and a multi-layered interface of PI/SiO2/GO. The final obtained PI aerogel possessed effective thermal conductivity (0.0309 W/m·K) and a high specific modulus (46.19 m2/s2). In addition, the high thermal stability (543.80 °C in Ar atmosphere) and the ability to retain properties under heat treatment proved its durability in high thermal environments. The hydrophobicity (131.55°) proves its resistance to water from the environment. The excellent performance of this PI aerogel and its durability in thermal working environments make it possible to be applied in varied industrial and research fields, such as construction and energy, where heat and thermal insulation are required.
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15
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Zhang M, Jiang S, Li M, Wang N, Liu L, Liu L, Ge A. Superior stable, hydrophobic and multifunctional nanocellulose hybrid aerogel via rapid UV induced in-situ polymerization. Carbohydr Polym 2022; 288:119370. [DOI: 10.1016/j.carbpol.2022.119370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/27/2022]
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16
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Liu S, Dun C, Chen J, Rao S, Shah M, Wei J, Chen K, Xuan Z, Kyriakidou EA, Urban JJ, Swihart MT. A General Route to Flame Aerosol Synthesis and in situ Functionalization of Mesoporous Silica. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shuo Liu
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Chaochao Dun
- Lawrence Berkeley National Laboratory: E O Lawrence Berkeley National Laboratory Molecular Foundry UNITED STATES
| | - Junjie Chen
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Satyarit Rao
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Mihir Shah
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Jilun Wei
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Kaiwen Chen
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | - Zhengxi Xuan
- University at Buffalo Chemical and Biological Engineering UNITED STATES
| | | | - Jeffrey J. Urban
- Lawrence Berkeley National Laboratory: E O Lawrence Berkeley National Laboratory Molecular Foundry UNITED STATES
| | - Mark T. Swihart
- University at Buffalo Chemical and Biological Engineering 308 Furnas Hall 14260-4200 Buffalo UNITED STATES
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17
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Robust Silica–Agarose Composite Aerogels with Interpenetrating Network Structure by In Situ Sol–Gel Process. Gels 2022; 8:gels8050303. [PMID: 35621601 PMCID: PMC9141877 DOI: 10.3390/gels8050303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 12/22/2022] Open
Abstract
Aerogels are three-dimensional nanoporous materials with outstanding properties, especially great thermal insulation. Nevertheless, their extremely high brittleness restricts their practical application. Recently, although the mechanical properties of silica aerogels have been improved by regulating the precursor or introducing a polymer reinforcer, these preparation processes are usually tedious and time-consuming. The purpose of this study was to simplify the preparation process of these composite aerogels. A silicic acid solution treated with cation exchange resin was mixed with agarose (AG) to gel in situ, and then composite aerogels (CAs) with an interpenetrating network (IPN) structure were obtained by aging and supercritical CO2 fluid (SCF) drying. Compared to previous works, the presented CAs preparation process is briefer and more environmentally friendly. Moreover, the CAs exhibit a high specific surface area (420.5 m2/g), low thermal conductivity (28.9 mW m−1 K−1), excellent thermal insulation properties, and thermal stability. These results show that these CAs can be better used in thermal insulation.
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18
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Cheng X, Liu YT, Si Y, Yu J, Ding B. Direct synthesis of highly stretchable ceramic nanofibrous aerogels via 3D reaction electrospinning. Nat Commun 2022; 13:2637. [PMID: 35552405 PMCID: PMC9098874 DOI: 10.1038/s41467-022-30435-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/26/2022] [Indexed: 12/03/2022] Open
Abstract
Ceramic aerogels are attractive for many applications due to their ultralow density, high porosity, and multifunctionality but are limited by the typical trade-off relationship between mechanical properties and thermal stability when used in extreme environments. In this work, we design and synthesize ceramic nanofibrous aerogels with three-dimensional (3D) interwoven crimped-nanofibre structures that endow the aerogels with superior mechanical performances and high thermal stability. These ceramic aerogels are synthesized by a direct and facile route, 3D reaction electrospinning. They display robust structural stability with structure-derived mechanical ultra-stretchability up to 100% tensile strain and superior restoring capacity up to 40% tensile strain, 95% bending strain and 60% compressive strain, high thermal stability from −196 to 1400 °C, repeatable stretchability at working temperatures up to 1300 °C, and a low thermal conductivity of 0.0228 W m−1 K−1 in air. This work would enable the innovative design of high-performance ceramic aerogels for various applications. Ceramic aerogels are generally brittle and often tend to structurally collapse under large external tensile strain. Here the authors synthesize large-scale stretchable ceramic aerogels with interwoven crimped nanofibers by combining electrohydrodynamic method and 3D reaction electrospinning.
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Affiliation(s)
- Xiaota Cheng
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yi-Tao Liu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yang Si
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China.
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China.
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19
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Guo P, Su L, Peng K, Lu D, Xu L, Li M, Wang H. Additive Manufacturing of Resilient SiC Nanowire Aerogels. ACS NANO 2022; 16:6625-6633. [PMID: 35404589 DOI: 10.1021/acsnano.2c01039] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Resilient ceramic aerogels are emerging as a fascinating material that features light weight, low thermal conductivity, and recoverable compressibility, promising widespread prospects in the fields of heat insulation, catalysis, filtration, and aerospace exploration. However, the construction of the resilient ceramic aerogels with rational designed multiscale architectures aiming for tunable physical and mechanical performances remains a major challenge. Here, 3D constructed resilient SiC nanowire aerogels possessing programmed geometries and engineered mechanical properties are created via additive manufacturing. The Young's modulus of the fabricated SiC nanowire aerogel lattices are tuned systematically from 0.012 MPa to 5.800 MPa spanning over 2 orders of magnitude. More importantly, the customized lightweight and resilient SiC nanowire aerogels show a low thermal conductivity (0.046 W m-1 K-1). The present work provides another approach to the design and rapid fabrication of resilient ceramic aerogels toward flexible thermal management devices, lightweight engineered structures, and other potential applications.
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Affiliation(s)
- Pengfei Guo
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Su
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Kang Peng
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - De Lu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Liang Xu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingzhu Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hongjie Wang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
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20
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Zhang X, Cheng X, Si Y, Yu J, Ding B. All-Ceramic and Elastic Aerogels with Nanofibrous-Granular Binary Synergistic Structure for Thermal Superinsulation. ACS NANO 2022; 16:5487-5495. [PMID: 35289162 DOI: 10.1021/acsnano.1c09668] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
High-performance thermally insulating ceramic materials with robust mechanical properties, high-temperature resistance, and excellent thermal insulation characteristics are highly desirable for thermal management systems under extreme conditions. However, the large-scale application of traditional ceramic granular aerogels is still limited by their brittleness and stiff nature, while ceramic fibrous aerogels often display high thermal conductivity. To meet the above requirements, in this study, ceramic nanofibrous-granular composite aerogels with lamellar multiarch cellular structure and leaf-like fibrous-granular binary networks are designed and fabricated. The resulting composite aerogels possess ultralow weight, superelasticity with recoverable compression strain up to 80%, and large mechanical strength. Furthermore, excellent fatigue resistance with 1.2% plastic deformation after 1000 cyclic compressions, temperature-invariant dynamic mechanical stability from -100 to 500 °C, and an operational temperature range from -196 to 1100 °C are successfully achieved in the proposed composites. The nanosized silica granular aerogels are assembled into a leaf-like shape and wrapped around the fibrous cell walls, endowing low thermal conductivity (0.024 W m-1 K-1) as well as favorable high-temperature thermal superinsulation properties. Benefiting from the favorable compatibility, the present strategy for nanofiber-granular composite ceramic aerogels provides a dominant route to produce thermally insulated and mechanically robust composite cellular materials for use in harsh environments.
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Affiliation(s)
- Xinxin Zhang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 200051, China
| | - Xiaota Cheng
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 200051, China
| | - Yang Si
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 200051, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 200051, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 200051, China
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21
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Mao X, Hong J, Wu YX, Zhang Q, Liu J, Zhao L, Li HH, Wang YY, Zhang K. An Efficient Strategy for Reinforcing Flexible Ceramic Membranes. NANO LETTERS 2021; 21:9419-9425. [PMID: 34729985 DOI: 10.1021/acs.nanolett.1c02657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Herein, we present a facile reinforcement method for the large-scale fabrication of highly flexible, mechanically stable, temperature-resistant ceramic lightweight membranes based on the cross-linked assembly of zirconia-silica (ZrO2-SiO2) nanofibrous and montmorillonite (MMT) nanosheets through electrospinning and a subsequent calcination process. The resulting MMT@ZrO2-SiO2 membranes exhibit high flexibility with a bending rigidity of 0.2 cN mm-1, robust mechanical performance with a tensile strength of up to 1.83 MPa, robust fire resistance, and temperature-invariant mechanical stability from -196 to 1000 °C. The thermal superinsulation with a thermal conductivity as low as 0.026 W m-1 K-1 and the improved mechanical strength can be attributed to the cross-linked interfacial interaction between the ZrO2-SiO2 nanofibers and the MMT nanosheets. Additionally, a firefighter uniform with MMT@ZrO2-SiO2 membranes inside features a superior thermal protective property up to the A2 level (combined flame and radiant exposure) and an excellent fire resistance of up to 1000 °C, which is ideal for next-generation firefighter uniform manufacturing.
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Affiliation(s)
- Xue Mao
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Jie Hong
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Yue-Xia Wu
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Qing Zhang
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Jia Liu
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Li Zhao
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Hai-Hong Li
- School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, P. R. China
| | - Yao-Yu Wang
- College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Kun Zhang
- Xi'an Polytechnic University, Xi'an 710048, P. R. China
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22
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Experimental and CFD Investigation on the Application for Aerogel Insulation in Buildings. ENERGIES 2021. [DOI: 10.3390/en14113310] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Reducing building energy consumption is a significant challenge and is one of the most important research areas worldwide. Insulation will help to keep the building’s desired temperature by reducing the heat flow. Additionally, proper insulation can provide an extended period of comfort, leading to reduced building energy requirements. Encapsulated air is the major aspect of most thermal insulation materials. Low thermal conductivity is a good characteristic of thermal insulation materials. Aerogel has low thermal conductivity, so it is suitable for glazing and insulation purposes. This research paper investigates the effectiveness of aerogel as an insulation material in buildings by incorporating a translucent aerogel-glazing system in the window and aerogel insulation in the wall of a building. Experimental investigation of a 10 mm thick aerogel blanket surrounded box was conducted to assess its performance. Additionally, a CFD simulation was conducted, and the results of temperature degradation for the wall showed good agreement with experimental results. Additionally, the CFD simulation of temperature decay was compared between the aerogel-glazed window and argon-glazed window. It was found that the aerogel-glazed window has slower temperature decay compared to the argon-glazed window. The results showed that integrating aerogel in the glazing system and wall insulation in a building has the potential to reduce the building’s energy consumption. Moreover, a numeric simulation was conducted, and showed that the building’s annual energy consumption is reduced by 6% with the use of aerogel insulation compared to fiberglass.
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23
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Zhang E, Zhang W, Lv T, Li J, Dai J, Zhang F, Zhao Y, Yang J, Li W, Zhang H. Insulating and Robust Ceramic Nanorod Aerogels with High-Temperature Resistance over 1400 °C. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20548-20558. [PMID: 33877815 DOI: 10.1021/acsami.1c02501] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ceramic aerogels, which present a unique combination of low thermal conductivity and excellent high-temperature stability, are attractive for thermal insulation under extreme conditions. However, most ceramic aerogels are constructed by oxide ceramic nanoparticles and thus are usually plagued by their brittleness and structural collapse at elevated temperatures (less than 1000 °C). Despite great progress achieved in this regard recently, it still remains a big challenge to design and fabricate intriguing ceramic aerogels with enhanced mechanical strength and remarkable thermal stability at ultrahigh temperature up to 1400 °C. To this end, we herein report a facile and scalable strategy to manufacture ceramic nanorod aerogels (CNRAs) with hierarchically macroporous and mesoporous structures by the controllable assembly of Al2O3 nanorods and SiO2 nanoparticles. Subsequently, the high-temperature annealing treatment of CNRAs significantly maximizes mechanical strength and promotes thermal tolerance. The obtained CNRAs demonstrate the integrated properties of super-strong heat resistance (up to 1400 °C), low thermal conductivity (0.026 W/m·K at 25 °C and 0.089 W/m·K at 1200 °C), high mechanical robustness (compressive strength 1.5 MPa), and low density (0.146 g/cm3). We envision that this novel nanorod-assembled ceramic aerogels offer considerable advantages than most of the state-of-the-art ceramic aerogels for thermal superinsulation upon exposure to extremely harsh environments.
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Affiliation(s)
- Enshuang Zhang
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Wanlin Zhang
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Tong Lv
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Jian Li
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Jingxin Dai
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Fan Zhang
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Yingmin Zhao
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Jinying Yang
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Wenjing Li
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
| | - Hao Zhang
- Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, P. R. China
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24
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Maleki H, Fischer T, Bohr C, Auer J, Mathur S, Milow B. Hierarchically Organized Biomimetic Architectured Silk Fibroin-Ceramic-Based Anisotropic Hybrid Aerogels for Thermal Energy Management. Biomacromolecules 2021; 22:1739-1751. [PMID: 33689303 DOI: 10.1021/acs.biomac.1c00175] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Due to the current energy crises, the search for thermal energy management systems based on thermal insulating porous materials has drawn a significant deal of attention. Herein, we demonstrated the thermal insulation and management capabilities of cuttlefish bone mimetic aerogels with hierarchically organized porous structures directly fabricated from surface-modified and self-assembled silk fibroin (SF) biopolymer extracted from Bombyx mori silkworm cocoon biomass; hereafter, the materials developed referred to as X-AeroSF. Exploiting from creating an interpenetrating network of the secondary ceramic components of various one-, two-, and three-dimensional sepiolite (Mg2H2Si3O9·xH2O), MXene (Ti3C2TX), and silica nanostructures inside the self-assembled SF biopolymer and subsequent uni-directional freeze-casting and drying the resulted hydrogels, composites with aerogel features were obtained. The obtained aerogels possess low bulk density (ρb = 0.059-0.090 g cm-3), low thermal conductivities (λ = 0.035-0.042 W m-1 K-1), and high thermal stability (up to ∼260 °C) with multi-modal lamella-bridge porous microstructures found in the cuttlefish bone structure. In addition, the intriguing anisotropy in the X-AeroSF composite porous structure enables thermal dissipation along with the aligned pore directions, thus decreasing the local overheating on the heated side. As a result, an improvement in thermal insulation in the perpendicular direction with respect to the pore lamellae was obtained. Therefore, the exquisite thermal energy management, biodegradability, low bulk density, fire resistivity, together with possible manufacture scalability of X-AeroSF composite, make this material attractive for future practical applications.
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Affiliation(s)
- Hajar Maleki
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstraße 6, Cologne 50939, Germany
| | - Thomas Fischer
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstraße 6, Cologne 50939, Germany
| | - Christoph Bohr
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstraße 6, Cologne 50939, Germany
| | - Jaqueline Auer
- University of Applied Sciences Upper Austria, Stelzhamerstraße 23, Wels 4600, Austria
| | - Sanjay Mathur
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstraße 6, Cologne 50939, Germany
| | - Barbara Milow
- Institute of Inorganic Chemistry, Department of Chemistry, University of Cologne, Greinstraße 6, Cologne 50939, Germany.,Department of Aerogels and Aerogel Composites, Institute of Materials Research, German Aerospace Center (DLR), Linder Höhe, Cologne 51147, Germany
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García-González CA, Sosnik A, Kalmár J, De Marco I, Erkey C, Concheiro A, Alvarez-Lorenzo C. Aerogels in drug delivery: From design to application. J Control Release 2021; 332:40-63. [PMID: 33600880 DOI: 10.1016/j.jconrel.2021.02.012] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/28/2022]
Abstract
Aerogels are the lightest processed solid materials on Earth and with the largest empty volume fraction in their structure. Composition versatility, modularity, and feasibility of industrial scale manufacturing are behind the fast emergence of aerogels in the drug delivery field. Compared to other 3D materials, the high porosity (interconnected mesopores) and high specific surface area of aerogels may allow faster loading of small-molecule drugs, less constrained access to inner regions of the matrix, and more efficient interactions of the biological milieu with the polymer matrix. Processing in supercritical CO2 medium for both aerogel production (drying) and drug loading (impregnation) has remarkable advantages such as absence of an oxidizing environment, clean manufacture, and easiness for the scale-up under good manufacturing practices. The aerogel solid skeleton dictates the chemical affinity to the different drugs, which in turn determines the loading efficiency and the release pattern. Aerogels can be used to increase the solubility of BCS Class II and IV drugs because the drug can be deposited in amorphous state onto the large surface area of the skeleton, which facilitates a rapid contact with the body fluids, dissolution, and release. Conversely, tuning the aerogel structure by functionalization with drug-binding moieties or stimuli-responsive components, application of coatings and incorporation of drug-loaded aerogels into other matrices may enable site-specific, stimuli-responsive, or prolonged drug release. The present review deals with last decade advances in aerogels for drug delivery. An special focus is paid first on the loading efficiency of active ingredients and release kinetics under biorelevant conditions. Subsequent sections deal with aerogels intended to address specific therapeutic demands. In addition to oral delivery, the physical properties of the aerogels appear to be very advantageous for mucosal administration routes, such as pulmonary, nasal, or transdermal. A specific section devoted to recent achievements in gene therapy and theranostics is also included. In the last section, scale up strategies and life cycle assessment are comprehensively addressed.
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Affiliation(s)
- Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - József Kalmár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Can Erkey
- Chemical and Biological Engineering Department, Koç University, 34450 Sarıyer, Istanbul, Turkey
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Ji R, Shao Z, Li Z, Wang J, An L, Guo Z, Zhou C, Ren S. Magnetically hard ferrite nanoparticles synthesized through aerogel nanoreactor. NANOTECHNOLOGY 2020; 31:465606. [PMID: 32877374 DOI: 10.1088/1361-6528/abaf21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic ferrite materials have been extensively studied for a range of technological applications, such as magnetic motors, recording media, and millimetre-wave devices. In this context, the nanosized epsilon phase of Fe2O3 (ϵ-Fe2O3) attracts significant attention due to its high coercive field at room temperature. Here, we report the in-situ aerogel nanoreactor growth of magnetic ϵ-Fe2O3 nanoparticles, exhibiting a coercive field (Hc) of 4000 Oe. We show that the control of nanoreactor plays an important role in the growth of ϵ-Fe2O3 nanoparticles. The findings provide a versatile reaction pathway for the growth of magnetically hard ferrite nanoparticles.
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Affiliation(s)
- Rui Ji
- Department of Mechanical and Aerospace Engineering, University at Buffalo, The State University of New York, Buffalo, United States of America
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