Article
Chemistry, Multidisciplinary
Min Jun Oh, Je Hyun Lee, Pil J. Yoo
Summary: A highly efficient thermal insulation material based on graphene with anisotropic closed-cellular structures has been developed to suppress thermal transport in all directions. This material exhibits remarkably low thermal conductivity of 5.75 mW m(-1) K-1, offering a novel toolkit for next-generation high-performance insulation materials.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Ting Wang, Man-Cheng Long, Hai-Bo Zhao, Wen-Li An, Shimei Xu, Cong Deng, Yu-Zhong Wang
Summary: This study presents a smart temperature-responsive self-intumescent strategy for organic aerogels, which can rapidly form stable porous carbon at high temperatures to achieve excellent fire resistance and high-temperature thermal insulation. The aerogel can expand in real time in response to temperature/fire, resisting various heat conditions and exhibiting the best high-temperature insulating performance ever reported.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Composites
Mengmeng Li, Xian Chen, Xiuting Li, Jie Dong, Cuiqing Teng, Xin Zhao, Qinghua Zhang
Summary: Ultralight, flexible, and robust aerogel textiles based on aramid nanofiber/modified carbon nanotubes showed excellent thermal insulation properties and high-efficient electromagnetic shielding performance.
COMPOSITES COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Yue-Yi Wang, Feng Zhang, Nan Li, Jun-Feng Shi, Li-Chuan Jia, Ding-Xiang Yan, Zhong-Ming Li
Summary: In this paper, the latest research progress in carbon-based aerogels and foams for electromagnetic interference shielding is summarized and analyzed, including the mechanisms of different carbon nanostructures and the factors that affect the EMI shielding performance, such as electrical conductivity, dielectric properties, magnetic property, density, thickness, and structural morphology. The development trend and future prospect of carbon-based aerogels/foams are also outlined.
Article
Nanoscience & Nanotechnology
Ilya V. Novikov, Dmitry V. Krasnikov, Anton M. Vorobei, Yaroslav I. Zuev, Hassaan A. Butt, Fedor S. Fedorov, Sergey A. Gusev, Alexander A. Safonov, Eugene V. Shulga, Stepan D. Konev, Ivan V. Sergeichev, Sergey S. Zhukov, Tanja Kallio, Boris P. Gorshunov, Olga O. Parenago, Albert G. Nasibulin
Summary: Stretchable and flexible electronics have gained significant attention in recent years. Nanocomposites made of elastomers and carbon nanotubes are a promising material for soft electronic applications. Although single-walled carbon nanotube (SWCNT) based nanocomposites often exhibit superior properties, most studies have focused on those based on multiwalled carbon nanotubes (MWCNTs) due to their higher availability and easier processing. However, inspired by the decrease in SWCNT price, this study aims to fabricate elastic nanocomposites with very low concentrations of SWCNTs to reduce cost. By using a fast method of coagulation precipitation, elastic composites based on thermoplastic polyurethane (TPU) and SWCNTs with a homogeneous distribution of SWCNTs are successfully fabricated. The fabricated elastic nanocomposites demonstrate excellent performance in strain sensing and EMI shielding at very low SWCNT concentrations.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yan Zhang, Jin Yu, Jiayu Lu, Chenjie Zhu, Dongming Qi
Summary: A facile method to fabricate cellulose nanofiber (CNF)/ammonium polyphosphate (APP)/Ti3C2Tx composite aerogels was demonstrated, showing excellent fire-resistance and high-performance EMI shielding effectiveness. The composite aerogel with high electrical conductivity and multiple reflections from the porous structure is a competitive product for high-performance EMI shielding material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Tiantian Xue, Yi Yang, Dingyi Yu, Qamar Wali, Zhenyu Wang, Xuesong Cao, Wei Fan, Tianxi Liu
Summary: In this study, advanced electromagnetic interference (EMI) shielding materials with miniaturized, programmable structure and low reflection were constructed. An integrated gradient-conductive MXene/CNT/polyimide (GCMCP) aerogel frame with hierarchical porous structure was used to achieve EMI shielding with ultra-low reflection. The GCMCP aerogel frames exhibited excellent average EMI shielding efficiency (68.2 dB) and low reflection (R = 0.23) due to the gradient-conductive structures and hierarchical porous structure. Moreover, these frames were considered as potential EMI shielding gaskets in defense industry and aerospace.
NANO-MICRO LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Farivash Gholamirad, Jinqun Ge, Monirosadat Sadati, Guoan Wang, Nader Taheri-Qazvini
Summary: Hybrid materials based on MXene and positively charged poly(allylamine hydrochloride) (PAH) chains were synthesized and their morphology, electrical conductivity, and EMI shielding effectiveness were studied. The results showed that PAH chains enhanced the oxidation stability and integrity of the MXene structures. The morphology and electrical conductivity of the hybrids could be tuned, and the EMI shielding performance was influenced by the conductive network configuration.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nuclear Science & Technology
Ibrahim Bilici, Bunyamin Aygun, Celal Utku Deniz, Beytullah Oz, M. I. Sayyed, Abdulhalik Karabulut
Summary: The study aims to enhance neutron radiation absorption by incorporating boron minerals into polypropylene-based composite materials, resulting in low density, low cost, and flexible neutron shield materials. Research findings demonstrate that these composites have better neutron radiation absorption performance compared to conventional materials, and can be applied in areas such as medicine, storage or transportation of radioactive waste.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Engineering, Chemical
Benedetta Anna De Liso, Vincenzo Palma, Gianmaria Pio, Simona Renda, Ernesto Salzano
Summary: The partial oxidation of ethylene in a methane atmosphere by pure oxygen is a vital industrial process, but its production is limited by kinetic and safety issues due to the high reactivity and exothermicity. Adopting mild operative conditions can manage side reactions and improve the process performance. In the future, using liquefied ethylene and oxygen-enriched air as heat sources can promote innovative and sustainable solutions. This study focuses on the experimental and numerical characterization of ethylene/methane/nitrogen/oxygen mixtures at different operative conditions, aiming to identify operational limits and sustainable conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Chen Fu, Zhizhi Sheng, Xuetong Zhang
Summary: In this study, a free-standing carbon nanotube (CNT)-based aerogel film with a laminated porous structure and high electrical conductivity was prepared using a laminated structural engineering strategy. The film showed a large specific surface area and the highest specific shielding effectiveness among reported aerogel-based materials. It also exhibited exceptional Joule heating performance, making it suitable for lightweight applications such as EMI shielding and wearable heating.
Article
Polymer Science
Natalia Gorshkova, Olga Brovko, Irina Palamarchuk, Konstantin Bogolitsyn, Artem Ivakhnov
Summary: The study aimed to obtain highly porous two-component alginate-chitosan aerogels for controlled-release drug delivery. The aerogels exhibited a developed mesoporous structure and high water uptake capacity, and were effective in demonstrating prolonged release kinetics of levomycetin as a drug delivery system.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Biochemistry & Molecular Biology
Fangfang Wang, Hao Zhang, Yufeng Sun, Shengwen Wang, Li Zhang, Aiguo Wu, Yujie Zhang
Summary: In recent years, there has been a serious water pollution problem caused by frequent oil spills and increasing industrial wastewater discharge. To address this issue, the development of materials that can simultaneously treat oil, microbial, and dye pollutants is crucial for safe treatment and recovery of wastewater. In this study, a modified calcium alginate-based aerogel membrane was prepared and shown to have super hydrophilic and underwater super-oleophobic properties. The membrane could effectively separate oil-water emulsions under gravity with a separation efficiency of over 99%. Additionally, the membrane could remove bacteria and dye pollutants from water by filtration, achieving removal rates of 100% and 99% respectively. The filtration results of mixed wastewater demonstrated that the CTW membrane could realize one-step separation of oil, bacteria, and dye, and also had the potential for recycling and further application.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Inorganic & Nuclear
Seiichiro Tanaka, Koichi Okuno, Yukiko Takeuchi, Takashi Tabara
Summary: Through experiments and simulations, it was found that the use of boron carbide coating material can effectively reduce neutron activation effects in concrete and other materials, reducing the production of short-lived and long-lived nuclides.
APPLIED RADIATION AND ISOTOPES
(2022)
Article
Polymer Science
Yan-Kun Xie, Lu-Kun Feng, Dong-Dong Li, Yin Tang, Cai-Zhen Zhu, Ming-Liang Wang, Jian Xu
Summary: This study developed solid-state polymer electrolytes based on succinonitrile for lithium-metal batteries, which demonstrated excellent ion-conductivity, wide electrochemical stability window, high storage capacity, and cycling stability. This research provides a simple strategy for the practical application of solid-state polymer electrolytes.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
