Article
Chemistry, Physical
Yongchao He, Yiqun Wang, Lianggui Ren, Qinchuan He, Dan Wu, Shuanglin Deng, Guanglei Wu
Summary: The study successfully synthesized honeycomb-like Fe-doped tremella carbide composites (FCT) with a large number of heterogeneous interfaces by in-situ construction of multiphase composite particles. The effects of Fe doping on the properties of FCT were investigated, and the results showed that FCT exhibited excellent electromagnetic wave absorption performance and a wide effective absorption bandwidth. This study provides an effective strategy for the preparation of excellent electromagnetic wave absorbing materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rui Jiang, Yiqun Wang, Jiayao Wang, Qinchuan He, Guanglei Wu
Summary: The design and synthesis of metal-organic frameworks (MOF) derived composites with multiple loss mechanisms and multiscale micro/nano structures is an important research direction for microwave absorbing materials. In this study, multi-scale bayberry-like Ni-MOF@N-doped carbon composites (Ni-MOF@N-C) were obtained using a MOF assisted strategy. The microwave absorption performance of Ni-MOF@N-C was effectively improved by utilizing the special structure of MOF and regulating its composition. The excellent microwave absorption performance of Ni-MOF@N-C can be attributed to the strong interface polarization, defect and dipole polarization, and magnetic loss caused by Ni, as well as the enhanced impedance matching due to the coupling of magnetic and dielectric properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Menglei Dong, Mengyi Peng, Wei Wei, Huajie Xu, Chuntai Liu, Changyu Shen
Summary: The study utilized a templated method to grow ZIF-67 on helical CNTs, successfully preparing hierarchical helical C/Co@CNT nanocomposites with excellent microwave absorption properties. The unique structure and composition endowed it with outstanding microwave energy dissipation capacity.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Sajid Ur Rehman, Shuai Xu, Zehua Li, Tongxiang Tao, Jing Zhang, Haining Xia, Hunagtao Xu, Kun Ma, Junfeng Wang
Summary: This study investigates the utilization of biomineralized bovine serum albumin (BSA) protein as a template for synthesizing Mil-100 with superior microwave absorption (MA) properties. The BSA@Mil-100 synthesized using this method exhibits exceptional uniformity and monodispersity of nanocrystals. The synthesized 2-BSA@Mil-100 demonstrates a high reflection loss value and a maximum effective absorption bandwidth. Overall, this study highlights the potential of utilizing BSA protein as a template for MOF synthesis, offering an effective strategy for the design and development of high-performance MA materials.
Article
Chemistry, Physical
Wenxuan Hou, Kang Peng, Shikuo Li, Fangzhi Huang, Baojun Wang, Xinyao Yu, Hengxiu Yang, Hui Zhang
Summary: To achieve exceptional electromagnetic wave absorption properties, it is crucial to design the microstructure and modify the components of composites. Metal-organic frameworks (MOFs), with their unique metal-organic crystalline coordination, tunable morphology, high surface area, and well-defined pores, have been recognized as promising precursors for electromagnetic wave absorption materials. However, the inadequate contact abilities between adjacent MOFs nanoparticles result in poor electromagnetic wave dissipation capacity at low filler loading, posing a significant challenge in breaking the size effect of nanoparticles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jianxin Chen, Yiruo Wang, Yufei Liu, Ye Tan, Jia Zhang, Panbo Liu, Jie Kong
Summary: This study proposes a new cooperative method for constructing hollow macroporous magnetic carbon fibers, aiming to solve the conflicts between lightweight characteristics and high absorption performance in microwave absorbents. The fabricated fibers exhibit excellent microwave attenuation performance and can meet the demand for electromagnetic protection.
Article
Chemistry, Physical
Shuangshuang Li, Tiantian Ma, Zheyuan Chai, Zihang Zhang, Mingyang Zhu, Xinwei Tang, Xu Zhao, Yezi Lu, Qianqian Lan, Zhenyu Wang, Feng He, Zicheng Wang, Tianxi Liu
Summary: A hierarchically porous graphene/iron trioxide magnetic composite foam is successfully synthesized by assembling metal-organic frameworks in reduced graphene oxide skeletons and performing annealing treatment. The foam exhibits excellent absorption capacity and wide bandwidth due to the synergistic optimization of impedance matching and attenuation constant.
Article
Chemistry, Physical
Xiaopeng Han, Ying Huang, Sai Gao, Guozheng Zhang, Tiehu Li, Panbo Liu
Summary: The continuous 3D hierarchical construction method has been proven to be an effective way to prepare high-efficiency microwave absorption composites. A novel hierarchical carbon fiber @MXene@ZnO core-sheath structure with tunable and efficient microwave absorption performance has been successfully synthesized through a self-assembly and hydrothermal process. The composite material exhibits excellent microwave absorption and photothermal properties, providing a new strategy for designing safe and wearable devices.
Article
Chemistry, Physical
Ruiwen Shu, Yue Wu, Xiaohui Li, Ningning Li, Jianjun Shi
Summary: In this study, nitrogen-doped cobalt iron alloy@carbon-carbon nanotubes (CoFe alloy@C-CNTs) composites were fabricated using an aging and pyrolysis two-step method. The composites exhibited a unique four-pointed star morphology with CoFe alloy nanoparticles uniformly embedded in the porous carbon matrix. The microwave absorption properties of the composites were significantly influenced by the pyrolysis temperature, and the composite treated at 700.0 degrees C showed the best absorption performance. The possible electromagnetic attenuation loss mechanisms of the composites were also elucidated.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Xiaohu Ren, Xilou Pu, Hongfeng Yin, Yun Tang, Hudie Yuan, Huiqing Fan
Summary: By coating conductive polymer PANI on the surface of hexaferrite, the electromagnetic loss can be greatly enhanced, leading to improved microwave absorption capacity. The PANI@hexaferrite composite exhibited excellent absorption performance at various thicknesses, showing potential for extensive applications as microwave absorbers.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Yan Wang, Xiaochuang Di, Zhao Lu, Xinming Wu
Summary: A novel hybrid nanostructure consisting of cobalt particles embedded in hollow carbon polyhedron and nanoporous carbon was reported, demonstrating improved microwave absorption properties due to the unique structure. This hybrid material shows promise for future applications in mitigating electromagnetic pollution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Yan-Qin Wang, Rong Ding, Yu-Chuan Zhang, Bo-Wen Liu, Qiang Fu, Hai-Bo Zhao, Yu-Zhong Wang
Summary: This study proposes a unique structural design strategy that combines a hollow structure with gradient hierarchical heterostructures to achieve high-performance microwave absorption. MoS2 nanosheets are grown uniformly onto the double-layered Ti3C2Tx MXene@rGO hollow microspheres. The gradient hierarchical heterostructures, including a MoS2 impedance matching layer, a reduced graphene oxide (rGO) lossy layer, and a Ti3C2Tx MXene reflective layer, have demonstrated significant improvements in impedance matching and attenuation capabilities. Additionally, the incorporation of a hollow structure can further improve microwave absorption while reducing the overall composite density. This work provides an exquisite perspective on heterostructure engineering design for developing next-generation microwave absorbers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Zhihong Wu, Zhenzhen Meng, Cheng Yao, Yue Deng, Guoli Zhang, Yubin Wang
Summary: In this study, porous carbon derived from rice husk was prepared for absorbing electromagnetic waves, showing excellent absorption properties with the adjustment and optimization of the pore structure achievable by controlling the heat treatment temperature. The porous carbon material demonstrates good impedance matching, high dielectric-loss capacity, large specific surface area, and reasonable pore diameter distribution, making it a promising lightweight and efficient electromagnetic absorbing material.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Zhouyu Tong, Zijian Liao, Yanyan Liu, Mingliang Ma, Yuxin Bi, Weibo Huang, Yong Ma, Mingtao Qiao, Guanglei Wu
Summary: Hierarchical structured Fe3O4/Fe@C@MoS2 nanofibers with excellent microwave absorption properties were successfully prepared in this study, providing a new insight for the design of high-performance microwave absorption materials in the future.
Article
Materials Science, Ceramics
Shuang Zhang, Fan Zhang, Yingying Xie, Huanhuan Niu, Yaya Li, Hailong Wang, Rui Zhang, Hongxia Li, Xiaohui Wang, Bingbing Fan
Summary: CoNi@Ti3C2TX composites with CoNi alloy particles decorated on the surface and interlayer of Ti3C2TX were successfully synthesized by a simple solvent thermal reduction method. The introduction of CoNi particles significantly enhanced the soft magnetic properties of the composites. By adjusting the electromagnetic parameters, the optimal electromagnetic absorption performance was achieved.
CERAMICS INTERNATIONAL
(2022)