Article
Materials Science, Ceramics
Hehan Xie, Xianfeng Yang, Peng Liu, Xiewen Xu, Zhe Zhou, Wei Zhao, Zhijian Shen
Summary: Efficient additive manufacturing of dense alumina ceramics was achieved through a 3D gel printing process. By adjusting the rheology properties of the gel with solid loading and HEC addition, and utilizing a multistep liquid desiccant drying method, high-quality ceramic parts with fine grain size, high density, and good flexural strength were successfully prepared.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Analytical
Han Zhang, Long Huang, Mingyue Tan, Shaoqing Zhao, Hua Liu, Zifeng Lu, Jinhuan Li, Zhongzhu Liang
Summary: Researchers are looking for more innovative 3D printing technologies for glass fabrication, which provides a good solution to the complex traditional glass manufacturing process. However, the application of 3D printing in glass fabrication is still in its infancy and faces many challenges.
Article
Nanoscience & Nanotechnology
Majed Amini, Hadi Hosseini, Subhajit Dutta, Stefan Wuttke, Milad Kamkar, Mohammad Arjmand
Summary: This study addresses the limitations of 3D-printed electrically conductive structured biobased aerogels through molecular engineering, resulting in improved conductivity, mechanical strength, printing resolution, and the ability to address electromagnetic pollution.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Jiaqi Yao, Xiangdong Gao, Yongqing Wu, Xiang Zhao, Xiaomin Li
Summary: This study demonstrates a simple and effective method to prepare highly thermal resistant aluminum doped silica aerogel (ASA) via sol-gel and ambient pressure drying using water glass and aluminum chloride as precursors. The effects of the Al/Si molar ratio in the precursor, calcination temperature, and modifier type on the structure and heat resistance performance of ASA are investigated. The results show that the Al/Si ratio and calcination temperature significantly affect the properties of ASA at temperatures ranging from 600 to 1000 degrees C.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Selay Sert Cok, Fatos Koc, Nilay Gizli
Summary: This study demonstrated that silica aerogels modified with TMCS and MTMS exhibit good hydrophobicity, high adsorption capacity, and enduring adsorption property, making them promising candidates for oil/organic solvent clean up practices.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Jian Wei, Pinghua Zhu, Hao Sun
Summary: This paper reports a new method for synthesizing insulating aerogel using recycled solid waste coal gangue. The method reduces production costs and realizes high value-added utilization of solid waste. The wet gels derived from coal gangue were quickly dried using a solvent exchange/surface modification method, resulting in a nanostructured aerogel with high surface area and superior thermal insulation performance.
Article
Chemistry, Applied
Shengyuan Wang, Zhixiang Zhu, Ya Zhong, Jun Gao, Feng Jing, Sheng Cui, Xiaodong Shen
Summary: Hydrophobic SiO2 aerogels with superhydrophobic surfaces and low thermal conductivity are prepared using double silicon sources as co-precursors. The microstructure and chemical-physical properties of the aerogels treated at different temperatures are investigated. The TM and TE aerogels exhibit low thermal conductivity, high specific surface area, and good hydrophobicity, making them suitable for thermal insulation, catalysis, and environmental protection.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Polymer Science
Fabian Zemke, Julien Gonthier, Ernesto Scoppola, Ulla Simon, Maged F. F. Bekheet, Wolfgang Wagermaier, Aleksander Gurlo
Summary: Ambient pressure drying (APD) has the potential to reduce the cost of aerogel fabrication. This study investigates the effect of different silylation agents on the re-expansion of SiO2 aerogels after drying. The results show that while some physical properties were significantly affected by re-expansion, silylation did not always result in full re-expansion. The impact of silylation in tailoring the re-expansion behavior is crucial for APD of monolithic aerogels.
Article
Construction & Building Technology
Mohsen Rezaei Shahmirzadi, Aliakbar Gholampour, Alireza Kashani, Tuan D. Ngo
Summary: Extrusion-based concrete 3D printing is still in its early stage, requiring thorough investigations on various aspects. This study shows that outdoor environmental conditions have significant effects on the properties of cementitious 3D printing materials, such as drying shrinkage.
CEMENT & CONCRETE COMPOSITES
(2021)
Review
Engineering, Environmental
Jie Zhu, Peiwen Wu, Yanhong Chao, Jiangtao Yu, Wenshuai Zhu, Zhichang Liu, Chunming Xu
Summary: Three-dimensional (3D) printing is revolutionizing the design and manufacturing of 3D objects by transforming digital models into solid models. In the field of catalysis, 3D printing technology offers new possibilities and is widely applied in related catalytic reactions and processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Chengdong Li, Qingsong Liu, Guihua Zhang, Liangliang Lin, Kostya (Ken) Ostrikov
Summary: In this study, crack-free polymethylsilsesquioxane (PMSQ) aerogel monoliths were successfully synthesized from methyltriethoxysilane (MTES) at ambient conditions. The phase separation of MTES was delayed by optimizing the concentration of cetyltrimethylammonium bromide (CTAB) surfactant in the sol, resulting in flat surfaces without cracks. The new synthesis method is 1.3-31.8 times faster than conventional processes and contributes to the development of green and scalable production technologies of silica aerogels.
Review
Chemistry, Multidisciplinary
Halil Tetik, Ying Wang, Xiao Sun, Daxian Cao, Nasrullah Shah, Hongli Zhu, Fang Qian, Dong Lin
Summary: Aerogels are highly porous structures produced by replacing the liquid solvent of a gel with air, without causing a collapse in the solid network. Additive manufacturing (AM) has been used to fabricate 3D aerogels with customized geometries specific to their applications, showing great promise in various fields such as tissue engineering, electrochemical energy storage, controlled drug delivery, sensing, and soft robotics. Postprinting processes are addressed to achieve desired properties like porosity and mechanical strength through drying and postdrying treatments.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Manufacturing
Qifeng Qian, Jan Henk Kamps, Brian Price, Hao Gu, Ricky Wildman, Richard Hague, Belen Begines, Christopher Tuck
Summary: In this study, a 3D reactive inkjet printing method was developed to successfully fabricate bisphenol A-polycarbonate material, demonstrating the capability to broaden the range of AM materials to include engineering grade polymers.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Dongxuan Du, Fengqi Liu, Yonggang Jiang, Junzong Feng, Liangjun Li, Jian Feng
Summary: Research has shown that fiber-reinforced aerogel composites synthesized using water as a solvent demonstrate simplified synthesis process and excellent thermal-mechanical performance, making them a promising efficient and economical insulation material.
Review
Engineering, Multidisciplinary
Xin Ning Zhang, Qiang Zheng, Zi Liang Wu
Summary: This paper reviews the recent progress in 3D printing of tough hydrogels and their applications. It provides an overview of the advantages and requirements of tough hydrogel systems for specific 3D printing technologies, and summarizes the network structures, mechanical performances, toughening mechanisms, and representative applications of the printed tough hydrogels. It also discusses the recent advances in 4D printing of tough hydrogels as a prospective direction for soft actuators and robots.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Manufacturing
Zipeng Guo, Fan Fei, Xuan Song, Chi Zhou
Summary: Direct ink writing (DIW) is a popular additive manufacturing technology for creating 3D objects using different materials. In this study, we analyze the non-Newtonian ink flow behavior during the DIW process using computational fluid dynamics (CFD) simulations. Different syringe-nozzle geometries are tested, and we reveal the shear-thinning property during ink extrusion. Based on our investigations, we propose an improved syringe-nozzle geometry for stable extrusion and high printing quality.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Chemistry, Physical
Leqi Lin, Vashin Gautham Nanjangud Thyagaraja, Renoy Ranjith, Ruizhe Yang, Simone Ciampi, James Chen, Jun Liu
Summary: In this study, a new mechanism for efficient degradation of organic pollutants in water systems is demonstrated. Utilizing the tribovoltaic effect, electron-hole pairs are generated by mechanical energy at dynamic metal semiconductor contacts, leading to the generation of highly reactive radicals and the degradation of dye molecules. This mechano-catalysis mechanism offers versatile material selection and mechanical stimuli, suggesting its significance in cost-effective water treatment and green chemical synthesis.
Article
Chemistry, Multidisciplinary
Pengfei Deng, Yanbin Wang, Ruizhe Yang, Zijian He, Yuanqiu Tan, Zhihong Chen, Jun Liu, Tian Li
Summary: This study integrates cellulose-based smart textiles with dynamic Schottky diodes (DSD) to generate sustained self-powered energy and demonstrates the functionality of a pressure sensor and an impact sensor. The woven structure of the textile contributes to signal amplification and enables distributed sensing. The proposed strategy of fabricating self-powered and multifunctional sensing networks with smart textiles shows great potential for future intelligent society.
Article
Chemistry, Multidisciplinary
Fengyin Du, Wenkai Zhu, Ruizhe Yang, Yun Zhang, Jiawei Wang, Weihuan Li, Wenqiang Zuo, Lizhi Zhang, Liuyan Chen, Wei She, Tian Li
Summary: Inspired by the cuttlefish bone, researchers have developed a cement aerogel with high mechanical performance, low thermal conductivity, and good fire retardancy, making it a promising candidate for practical building applications.
Article
Materials Science, Multidisciplinary
Massimigliano Di Luigi, Donald Petit, Arpita Sarkar, Zipeng Guo, Chi Zhou, Shenqiang Ren
Summary: Wheat straw has emerged as a promising alternative to fossil fuel-based building materials for its ability to store carbon and contribute to building sustainability. In this study, cellulose fibrils extracted from wheat straw were used to manufacture carbon-sequestration insulation panel materials. The resulting material exhibited low thermal conductivity, high elastic and flexural moduli, and a hydrophobic treatment. Additionally, a 3D-printable ink was developed by mixing cellulose and silica aerogel precursor, demonstrating the potential for state-of-the-art, sustainable materials in carbon-sequestration building applications.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
Fengyin Du, Zuquan Jin, Ruizhe Yang, Menglong Hao, Jiawei Wang, Gang Xu, Wenqiang Zuo, Zifan Geng, Hao Pan, Tian Li, Wei Zhang, Wei She
Summary: Battery safety has become a global concern due to the rapid growth of wearable electronics and electric vehicles. This study introduces a newly developed hierarchical nanocomposite, inspired by wood, to provide excellent protection for batteries. The versatile material exhibits lightweight, high stiffness, remarkable toughness, superior thermal insulation, and excellent fire retardancy, making it highly effective in reducing the risk of property damage or bodily injuries caused by battery explosions.
Article
Clinical Neurology
Ruizhe Yang, Haiyan Wu, Zhiqiang Gao
Summary: This article reports a case of a 26-year-old male with focal onset impaired awareness seizures due to ganglioglioma in the right temporal lobe, characterized by vertigo and spontaneous downbeat nystagmus. Surgical removal of the tumor resulted in complete relief of symptoms.
Article
Multidisciplinary Sciences
Bratin Sengupta, Qiaobei Dong, Rajan Khadka, Dinesh Kumar Behera, Ruizhe Yang, Jun Liu, Ji Jiang, Pawel Keblinski, Georges Belfort, Miao Yu
Summary: This study reports an ultrafast interfacial process for generating nanoporous carbon-doped metal oxide (CDTO) nanofilms for precise molecular separation. These CDTO nanofilms have high pore density and stability, allowing for long-term stable and efficient organic separation under harsh conditions.
Article
Construction & Building Technology
Fengyin Du, Zuquan Jin, Chuansheng Xiong, Guangyan Feng, Honglei Chang, Penggang Wang, Ruizhe Yang, Weiwei Zhu, Shicai Li, Noor Mohammad Mohammad
Summary: This study investigates the corrosion mechanisms and behavior of reinforced concrete in marine environments. The research reveals that the corrosion in chloride solution is more severe, with higher expansion stress of the rust layer compared to sulfate solution.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Simran Shahi, Asma Ahmed, Ruizhe Yang, Anthony Cabanillas, Anindita Chakravarty, Maomao Liu, Hemendra Nath Jaiswal, Yu Fu, Yutong Guo, Satyajeetsinh Shaileshsin Jadeja, Hariharan Murugesan, Anthony Butler, Chu Te Chen, Joel Muhigirwa, Mohamed Enaitalla, Jun Liu, Fei Yao, Huamin Li
Summary: By utilizing O-2 plasma treatment, anionic substitution doping in 2D WSe2 was achieved, enhancing hole transport. The 2D heterogeneous junction of WSe2/MoS2 was comprehensively studied in terms of energy bands and charge transport under applied electric fields. The junction acted as an antiambipolar transistor and exhibited exceptional performance, highlighting the potential of 2D materials to integrate with semiconductor technology and enhance nanoelectronics efficiency.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2023)
Article
Chemistry, Multidisciplinary
Meng-Lun Lee, Arpita Sarkar, Zipeng Guo, Chi Zhou, Jason N. Armstrong, Shenqiang Ren
Summary: Recycling pulp and paper wastes to create thermal insulation materials is crucial for the environmental sustainability of green buildings. By using eco-friendly materials and manufacturing technologies, we successfully developed flexible and hydrophobic insulation composites from recycled cellulose-based fibers and silica aerogel using additive manufacturing. These composites demonstrate excellent performance with thermal conductivity of 34.68 mW m(-1) K-1, mechanical flexibility with a flexural modulus of 429.21 MPa, and superhydrophobicity with water contact angle of 158.72 degrees. This additive manufacturing process offers significant potential for highly energy-efficient and carbon-sequestration building applications.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Mohammadreza Moghaddaszadeh, Andrew Ragonese, Yong Hu, Zipeng Guo, Amjad Aref, Chi Zhou, Shenqiang Ren, Mostafa Nouh
Summary: This study presents an experimental framework for controlling local resonance bandgap in a magnetically programmable metamaterial based on magnetorheological elastomers. The alignment of ferromagnetic particles under an external magnetic field enhances the sensitivity of the metamaterial's elastic modulus, allowing for control of the dispersive dynamics and shifting of the resonance-based bandgap. Numerical simulations also project the performance of the magnetically-tunable metamaterial at higher magnetic fields and levels of material anisotropy.
COMMUNICATIONS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiayu Li, Zipeng Guo, Xiaofeng Zhang, Xiaoli Meng, Zhenyang Dai, Meiyun Gao, Shuo Guo, Pingping Tang
Summary: Here, we report a practical and mild synthetic protocol for a three-component reaction among alkenes, trifluoromethyl aromatics, and arylthiols. The reaction involves selective C-F activation of trifluoromethyl aromatics and only produces a fluoride anion as a by-product within 2 hours. Furthermore, the obtained difluoromethyl thioether can be further oxidized to obtain unique and challenging sulfonyl-based gem-difluoromethyl products, with high yields for a variety of substrates.
Article
Chemistry, Physical
Ruizhe Yang, Zipeng Guo, Zhaohan Yu, Fengyin Du, Vashin Gautham Nanjangud Thyagaraja, Leqi Lin, Dylan R. Yu, Pengchong Xu, Jason N. Armstrong, Shaoting Lin, Chi Zhou, Jun Liu
Summary: Self-powered electromechanical sensing has great potential in various applications such as wearable electronics, robotics, artificial intelligence, and environmental monitoring. This study presents a continuous 3D printed conductive hydrogel-based energy harvesting device, capable of self-powered sensing operations. The combination of 3D-printed conductive hydrogels and energy generation capabilities shows promise in achieving self-powered sensing capabilities.