Article
Chemistry, Applied
Jie Gu, Wei Wang, Dan Yu
Summary: This study prepared double-shell microcapsules with both temperature control and low infrared emissivity, resulting in a fabric coating with significant infrared stealth effect. Compared to similar products, it has better temperature control capability.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Jie Gu, Wei Wang, Dan Yu
Summary: In this study, a dual-function infrared stealth fabric was designed with electroless silver plating and phase change material coating, which achieved the effects of reducing infrared radiation and heat absorption. Temperature measurements showed that the phase change material could create a significant temperature difference and maintain surface temperature stability. Infrared camera images demonstrated that the prepared fabric could effectively shield or interfere with the target's infrared heat signature. Related performance tests also verified its practical durability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Jie Gu, Wei Wang, Dan Yu
Summary: In this paper, a dual-working module IR stealth fabric with electroless silver plated fabric component and heat-absorbing component derived from a phase change material (PCM) coating is designed. The experimental results show that the fabric can effectively reduce the IR emissivity and maintain a low temperature, achieving a good stealth effect. In addition, it meets the practical requirements and has great potential for applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Materials Science, Ceramics
Jiayi Wang, Chunhao Wan, Qi Tang, Jian Xu, Nianxi Xu, Shansheng Yu, Xiaoyi Wang, Hongwei Tian
Summary: In this study, rGO/Al/CoFe2O4 composites with different amounts of CoFe2O4 were synthesized using a one-step hydrothermal method, and their electromagnetic properties and infrared emissivity were investigated. The results showed that the rGO/Al/CoFe2O4 composite with a CoFe2O4 content of 0.06 g exhibited a minimum reflection loss (RLmin) of -68.03 dB at 15.5 GHz with a thickness of 1.38 mm. The effective absorption bandwidth (EAB) and infrared emissivity were found to be 3.3 GHz and 0.63, respectively. Therefore, the designed rGO/Al/CoFe2O4 composites can be utilized in both wave absorption and low-infrared emissivity applications, providing an effective solution for designing bifunctional wave absorption materials.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Luping Chen, Zhiyu Ren, Xiaoming Liu, Kai Wang, Qiang Wang
Summary: By preparing Al-SiO2 nanoparticle composite films with varying SiO2 volume content, this study achieved a low infrared emissivity of 0.12 and high visible absorptivity of 0.67 when the SiO2 volume content was optimized at 6.9%. The compatibility issue between infrared stealth and visible stealth was resolved through the simultaneous low infrared emissivity and high visible absorptivity of the Al-SiO2 nanoparticle composite film.
OPTICS COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Xinting Chen, Ming Zhou, Yue Zhao, Weihua Gu, Yue Wu, Shaolong Tang, Guangbin Ji
Summary: In the face of increasing electromagnetic wave (EMW) pollution, biomass-based carbon materials are attracting attention due to their green, renewable, and environmentally-friendly characteristics. However, there is limited research on the microstructure control of these materials. In this study, two types of chitosan-derived carbon aerogels were prepared with different chitosan amounts and freezing methods, resulting in bamboo tube structure (BTS) and isolated island structure (IIS) morphologies. The obtained aerogels exhibited low density, high load-bearing capacity, and excellent thermal and electromagnetic wave absorption properties. The IIS aerogel showed superior performance in terms of infrared emissivity, effective absorption bandwidth, and radar cross-section reduction.
Article
Materials Science, Multidisciplinary
Chang Yang, Hao Guo, Huicong Chang, Yanchen Qu, Lin Xiao
Summary: In this study, a metamaterial-based infrared camouflage and radar compatible stealth structure is designed and fabricated. Different frequency selective surfaces (FSS) with varying infrared emissivity values are arranged into a visible camouflage pattern. The structure achieves high infrared camouflage and radar absorption capabilities, with the radar waves transmittance above 98% and absorption rate greater than 90% from 4.5 GHz-18 GHz.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Materials Science, Composites
K. Y. Fang, Y. J. Wang, Y. C. Zhao, F. Fang
Summary: The study investigates the impact of fibrous membrane composites with different amounts of VO2 fillers on the infrared radiation and mechanical properties, revealing a sudden drop in infrared emissivity around 68 degrees Celsius for composites with VO2. Additionally, an increase in VO2 content leads to a decrease in fracture strength and strain under uniaxial tension.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
K. Y. Fang, Y. C. Zhao, F. Fang
Summary: A layered composite material with low infrared emissivity, good thermal stability, and mechanical flexibility was successfully prepared using electrospinning technology, showing great potential for applications in infrared stealth technology.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Composites
Xia Chai, Dongmei Zhu, Yin Liu, Yuchang Qing, Zhaowen Ren, Fa Luo, Wancheng Zhou, Zhibin Huang, Peng Li
Summary: The study proposed a strategy of modifying colored pigments with low emissivity materials to develop multi-band compatible stealth materials, which successfully achieved visual/infrared stealth and radar wave transmission. By using silver-modified Cr2O3 particles, the electrical conductivity was significantly improved and the emissivity was effectively reduced, showing good stealth performance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Qinghong Ji, Xinxin Sheng, Xiaolong Li, Shuang Liu, Qiufei Chen, Pengzong Guo, Yabi Yang, Youyou Huang, Guoliang Zhang, Xiang Lu, Jinping Qu
Summary: This study successfully fabricated a double layer MXene@PVA/PCC aerogel composite inspired by the skin-fat structure of camel for infrared camouflage. The composite material demonstrated superior infrared stealth effect by integrating thermal insulation, heat absorption, and emissivity reduction strategies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Xiangyu Li, Lishuai Zong, Weijie Li, Yibo Wang, Jinyan Wang, Xigao Jian
Summary: Polymers containing Schiff base moieties were prepared and coordinated with Ni2+, Cu2+, and Sm3+ ions to prepare organic coatings. The polymer coordinated with Sm3+ ions showed the lowest energy band gap and best electrical conductivity, resulting in the lowest infrared emissivity, suggesting great potential for military applications.
Article
Nanoscience & Nanotechnology
Xia Chai, Dongmei Zhu, Qiang Chen, Yuchang Qing, Kai Cao, Fa Luo, Zhibin Huang, Peng Li, Xianhu Liu
Summary: In this study, a strategy of reducing the areal density and thickness of compatible stealth coatings was proposed by introducing silicone resin-based infrared stealth (IRS) coatings. The joint infrared-visual camouflage performance was achieved by using Al powder and modified Cr2O3 (M-Cr2O3) hybrid filler in the coating. Enhanced microwave absorption performance was achieved by coating the Al/M-Cr2O3-filled layer on FeSiAl-based microwave absorption (MA) layer. The properties of the coatings promote the service reliability and practicability of compatible stealth coatings on equipment.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Composites
Qianqian Huang, Zhide Wang, Yue Zhao, Yue Wu, Shaolong Tang, Guangbin Ji
Summary: A novel protective composite was synthesized using green synthesis technology, which can effectively absorb electromagnetic waves and has a wide absorption bandwidth. This composite material is of great significance for microwave and infrared compatible pollution protection.
COMPOSITES COMMUNICATIONS
(2022)
Article
Polymer Science
Xiang-Yu Li, Li-Shuai Zong, Yi-Bo Wang, Qi Cao, Jin-Yan Wang, Xi-Gao Jian
Summary: In this study, conjugated polymers containing Schiff base moieties were designed and prepared to meet the demand for infrared stealth materials in the military field. The resulting polymers exhibited high thermal stability, excellent mechanical performance, and low infrared emissivity. By modifying the band gap and electrical conductivity of the structure, further reduction of infrared emissivity was achieved, providing new ideas for the design of infrared stealth materials.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhiqian Cao, Guojin Liang, Derek Ho, Chunyi Zhi, Haibo Hu
Summary: This study presents a novel strategy to overcome the energy output limitation of micro-supercapacitors (MSCs) by anchoring low-valence Zn atoms onto MXene flakes. By combining a hydrogel electrolyte rich in Cl- and Zn2+ ions, the redox couples between symmetrical electrodes are activated, leading to a battery-type voltage plateau and enhanced energy density. The results show substantially improved power output stability compared to conventional MSCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Guojin Liang, Zijie Tang, Bing Han, Jiaxiong Zhu, Ao Chen, Qing Li, Ze Chen, Zhaodong Huang, Xinliang Li, Qi Yang, Chunyi Zhi
Summary: A highly effective solid-electrolyte interphase (SEI) for improving the reversibility of the Zn metal anode (ZMA) was constructed using a bisolvent electrolyte, and its composition/structure was resolved by cryogenic transmission electron microscopy. The resulting SEI is highly fluorinated with amorphous inorganic ZnFx uniformly distributed in the organic matrix, which is different from common mosaic and multilayer SEIs with crystalline inorganics. This SEI exhibits improved structural integrity, mechanical toughness, and Zn2+ ion conductivity, leading to excellent reversibility of the ZMA.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pei Li, Yiqiao Wang, Qi Xiong, Yue Hou, Shuo Yang, Huilin Cui, Jiaxiong Zhu, Xinliang Li, Yanbo Wang, Rong Zhang, Shaoce Zhang, Xiaoqi Wang, Xu Jin, Shengchi Bai, Chunyi Zhi
Summary: Electrolyte environments, including cations, anions, and solvents, play a critical role in the performance of battery cathodes. However, most research has focused on the interaction between cations and cathode materials, neglecting the correlation between anions and cathodes. This study systematically investigates how anions influence the coulombic efficiency (CE) of zinc battery cathodes, demonstrating that the electronic properties of anions can tune conversion or intercalation reactions, resulting in significant differences in CE.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shengmei Chen, Yiran Ying, Shengnan Wang, Longtao Ma, Haitao Huang, Xiaoqi Wang, Xu Jin, Shengchi Bai, Chunyi Zhi
Summary: In this study, an all-active solid interhalogen compound, IBr, is reported as a cathode material to address the challenges caused by the highly soluble Br-2/Br-3(-) species. By fixing the oxidized Br-0 with iodine (I), the cross-diffusing Br-2/Br-3(-) species during the charging and discharging process are eliminated. The Zn||IBr battery exhibits a remarkably high energy density of 385.8 Wh kg(-1), surpassing that of I-2, MEMBr3, and TPABr(3) cathodes. This work provides new approaches for achieving active solid interhalogen chemistry in high-energy electrochemical energy storage devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Guojin Liang, Bochun Liang, Ao Chen, Jiaxiong Zhu, Qing Li, Zhaodong Huang, Xinliang Li, Ying Wang, Xiaoqi Wang, Bo Xiong, Xu Jin, Shengchi Bai, Jun Fan, Chunyi Zhi
Summary: The use of an iodine-based cathode in combination with a Zn anode and a Cl-containing aqueous electrolyte solution demonstrates reversible high-energy interhalogen reactions. This approach allows for a specific discharge capacity of 612.5 mAh g(I2)(-1) and a discharge capacity retention of about 74% after 300 cycles. The efficient and reversible ClRR is achieved by utilizing interhalogen coordinating chemistry and redox-active halogen atoms.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Shixun Wang, Zhaodong Huang, Bing Tang, Xinliang Li, Xin Zhao, Ze Chen, Chunyi Zhi, Andrey L. L. Rogach
Summary: In this study, MXDA(2)SnI(6) perovskite microcrystals are proposed as conversion-type cathode materials for aqueous Zn-I-2 batteries, which effectively alleviate the undesired shuttle effect of iodine. The study demonstrates the feasibility of using ionic perovskites to develop high-performance cathodes for metal-I-2 batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Shengmei Chen, Xiongyi Liang, Sixia Hu, Xinliang Li, Guobin Zhang, Shuyun Wang, Longtao Ma, Chi-Man Lawrence Wu, Chunyi Zhi, Juan Antonio Zapien
Summary: Transition metal-nitrogen-carbon materials, particularly Fe-N-C, have been found to be electroactive for accelerating the oxygen reduction reaction (ORR) kinetics. However, their performance is still unsatisfactory despite efforts to enhance their active species content, surface area, and electronic conductivity. This study introduces Ti3C2 MXene with sulfur terminals to regulate the electronic configuration of FeN4 species and significantly enhance the catalytic activity toward ORR. The results demonstrate that the regulation of the electronic structure of active species via coupling with their support can greatly enhance their catalytic activity.
NANO-MICRO LETTERS
(2023)
Article
Multidisciplinary Sciences
Yanbo Wang, Qing Li, Hu Hong, Shuo Yang, Rong Zhang, Xiaoqi Wang, Xu Jin, Bo Xiong, Shengchi Bai, Chunyi Zhi
Summary: A lean-water hydrogel electrolyte is developed for zinc ion batteries, with fast ion transportation, extended stability, and reversible zinc plating/stripping. The hydrogel contains a molecular lubrication mechanism and balances ion transfer, anode stability, electrochemical stability, and resistance. It shows excellent cycling stability and capacity retentions at high and low current rates, meeting the needs of flexible devices.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jianwen Liu, Ying Guo, Xian-Zhu Fu, Jing-Li Luo, Chunyi Zhi
Summary: The adsorption ability of Co-N-C to oxygen-containing intermediates is improved by constructing heterostructures using transition metals and their derivatives, resulting in enhanced electrocatalysis performance.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaoqi Wang, Hu Hong, Shuo Yang, Shengchi Bai, Rui Yang, Xu Jin, Chunyi Zhi, Bo Wang
Summary: Introducing heteroatoms and pseudocapacitive metal oxide materials into carbon materials is proposed to improve the energy density of ZHS. In this study, an N-doped carbon framework with uniformly distributed nanoscale ZrO2 (NC@ZrO2) was prepared, showing a remarkable maximum energy density of 69 W h kg(-1) and a maximum power density of 5760 W kg(-1). This work provides a promising strategy for high-performance cathode materials for ZHSs and sheds light on the charge-storage mechanism and advanced cathode material design.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Chuan Li, Qing Li, Zhuoxi Wu, Yiqiao Wang, Rong Zhang, Huilin Cui, Yue Hou, Jiahua Liu, Zhaodong Huang, Chunyi Zhi
Summary: By using a hydroxyl-rich hydrogel electrolyte, this study successfully activated the redox site of the low-spin Fe in the KFeMnHCF cathode, improved its structure, and achieved larger capacity and longer lifespan. The strong adhesion of the hydrogel electrolyte prevented particle detachment and dissolution, leading to fast and reversible intercalation/deintercalation of metal ions in the cathode. This research provides new insights into the development of zinc hybrid batteries with Prussian blue analog cathode materials.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shizhen Li, Zhiquan Wei, Jinlong Yang, Guangming Chen, Chunyi Zhi, Hongfei Li, Zhuoxin Liu
Summary: The rapid development of zinc batteries is driven by the growing global demand for sustainable and cost-effective energy storage solutions. This study focuses on enhancing the energy density of zinc batteries by activating a CuS cathode using a deep-eutectic-solvent (DES)-based electrolyte. The presence of Cl- in the electrolyte is crucial for the reversibility of the redox chemistry and facilitates redox kinetics, allowing for a large discharge capacity and high energy densities.
