Article
Chemistry, Physical
Yun Qiu, Haibo Yang, Bo Wen, Liang Ma, Ying Lin
Summary: Transition metal carbon composites derived from metal organic frameworks (MOFs) have attracted attention in microwave absorption field. The study successfully fabricated nickel MOF at room temperature with water as solvent, and prepared nickel/carbon nanotubes composite via in-situ pyrolysis, showing excellent microwave absorption properties. The doping state of nitrogen greatly affects the performance of the composites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Heng Luo, Hira Rehman, Xinyu Xia, Jinfei Zheng, Ping Li, Yang Li, Jinchao Tong
Summary: This study focuses on the development of wide-band microwave absorbing materials using carbon nanotubes. The results show that the assembled clusters have efficient microwave absorbing performance, with multiple absorbing peaks and a wide absorbing band.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Pengshu Yi, Xianfei Zhang, Liqiang Jin, Ping Chen, Jiaqi Tao, Jintang Zhou, Zhengjun Yao
Summary: Innovatively combining the pyrolysis laws of Co-based Prussian blue analogue with the mechanisms of CNTs synthesis catalyzed by Co nanoparticles, CNTs-linked cubic porous PBA derivative (CoCN@CNT) was successfully prepared through a designed pyrolysis process. The obtained sample with a unique morphology and the best microwave absorption performance exhibited an ultra-wideband effective absorption covering the entire Ku radar band at only 20% filling ratio, providing theoretical support for the controllable growth of metal catalyzed CNTs and novel insights for the design and facile synthesis of high-performance micro-nano scale microwave absorbers.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Nanoscience & Nanotechnology
Zhiwei Zhang, Zhihao Cai, Ziyuan Wang, Yaling Peng, Lun Xia, Suping Ma, Zhanzhao Yin, Yi Huang
Summary: The development of microwave absorption materials (MAMs) is crucial due to the threat electromagnetic waves pose to human health. Metal-organic frameworks (MOFs) have been highly studied for their diverse properties and ability to transform into porous carbon (PC). Researchers are exploring ways to improve absorption performance by coupling MOFs with other materials.
NANO-MICRO LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Jia Wen Fang, Yuan Ma, Zhi Yong Zhang, Bin Ze Yang, Ye Sheng Li, Ying Yan Hu, Yan Hong Yin, Xian Bin Liu, Zi Ping Wu
Summary: The use of magnetic particles and carbon materials is crucial in managing microwave pollution, and the metal-organic framework (MOF)-derived composite with optimized impedance matching shows great potential in solving the issue of mismatched impedance in currently available absorbers. This composite demonstrates extremely strong microwave absorption, even at low temperatures, and is believed to be a promising solution for critical electromagnetic wave pollution.
ACS APPLIED MATERIALS & INTERFACES
(2021)
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
Hao Wu, Ruijia Tian, Fangzhi Huang, Baojun Wang, Shipeng Wang, Shikuo Li, Fenghua Liu, Hui Zhang
Summary: In this study, Ni-incorporated hollow N-doped carbon nanocages were designed and constructed to reveal interfacial charge transfer in electromagnetic wave attenuation. The optimized impedance matching and abundant Ohmic contact heterogeneous interfaces contribute to the improved electromagnetic wave absorption performance.
Article
Chemistry, Physical
Xiaohui Li, Lei Wang, Xiao Li, Jie Zhang, Min Wang, Renchao Che
Summary: This study successfully synthesized ZnO@MWCNTs with unique multi-dimensional architecture by controlling the pyrolysis time of MOF-5. The ZnO@MWCNTs-4h, consisting of different dimensional components, exhibit strong reflection loss at different frequencies and exceptional microwave absorption performance.
Article
Nanoscience & Nanotechnology
Nannan Wu, Beibei Zhao, Jiyun Liu, Yaling Li, Yunbo Chen, Lin Chen, Meng Wang, Zhanhu Guo
Summary: This study successfully fabricated Ni/C composites with excellent microwave absorption performance. The porous hollow Ni/C microspheres obtained at different calcination temperatures showed different microwave absorption effects, providing guidance for the research of lightweight microwave absorption materials.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
Tianbao Zhao, Tingting Zheng, Di Lan, Yan Zhang, Zhengshuo Sun, Chao Wang, Zirui Jia, Guanglei Wu
Summary: This study successfully synthesized polyhedral WSe2/CoCu/C composites by optimizing the composition and coating ultra-thin nanosheets, achieving synergistic effects of magnetic loss and dielectric loss to maximize the attenuation ability of electromagnetic waves.
Article
Engineering, Environmental
Feng Zhang, Zirui Jia, Jixi Zhou, Jinkun Liu, Guanglei Wu, Pengfei Yin
Summary: The deterioration of the electromagnetic environment due to the widespread use of communication devices has led to the urgent need for more efficient electromagnetic wave absorbing materials. In this study, composites with magnetic Co/carbon nanotube modification were prepared for electromagnetic wave absorption. The composites showed excellent absorption performance, including a minimum reflection loss of -56.23 dB and a maximum effective absorption bandwidth of 7.36 GHz. The mechanisms involved in electromagnetic wave uptake were also explained in detail.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Bei Li, Ziqian Ma, Jia Xu, Xiao Zhang, Yujin Chen, Chunling Zhu
Summary: The rational design of lightweight, broad-band, and high-performance microwave absorbers is urgently required for addressing electromagnetic pollution issue. Metal single atoms (M-SAs) absorbers receive considerable interest in the field of microwave absorption due to the unique electronic structures of M-SAs. In this study, a template-assisted method is used to fabricate isolated Co-SAs on N-doped hollow carbon spheres (NHCS@Co-SAs) for high-performance microwave absorption.
Article
Chemistry, Physical
Yating Zhang, Mengnan Yang, Peng Wang, Keke Li, Siyi Li, Zhanrui Zhang, Xinfu He, Yingfeng Duan
Summary: In this study, a novel hybrid nanoporous structure of Co nanoparticles uniformly embedded in hollow porous carbon doped with nitrogen was constructed, presenting outstanding electrocatalytic activity and stability in oxygen reduction reactions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Zhongjing Shen, Chongbo Liu, Huili Yang, Yu Xie, Qingwen Zeng, Renchao Che
Summary: Metal-organic frameworks (MOFs) have been utilized as precursors for highly effective microwave absorbers, but the challenge remains in fabricating thin, lightweight, well-organized nanostructures with strong microwave absorption capability and wide absorption bandwidth. This study successfully fabricated hollow cube dual-semiconductor Ln(2)O(3)/MnO/C nanocomposites via one-step high-temperature carbonization of Ln-Mn-MOFs, with Gd2O3/MnO/C-800 showing superior microwave absorption capacity. The research also investigated the impact of temperature on the microwave absorption properties of Gd2O3/MnO/C, revealing an ultrahigh bandwidth of 6.6 GHz.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Tong Gao, Rongzhi Zhao, Yixing Li, Zhenying Zhu, Chenglong Hu, Lianze Ji, Jian Zhang, Xuefeng Zhang
Summary: This study demonstrates the enhanced dielectric loss capacity through dielectric polarization in sub-nanometer hetero-substitutions, providing insights for the design of high-performance electromagnetic absorption materials.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Baojun Wang, Zijie Xu, Hao Wu, Wenbo Nie, Fangzhi Huang, Shikuo Li, Hui Zhang
Summary: In this study, a unique three-dimensional hierarchical structure consisting of 1D multi-walled carbon nanotubes anchored on 1D MXene@CF core-sheath microrods was fabricated via electrostatic self-assembly, hydrothermal strategy, and thermal-catalysis treatment. The hierarchical structure showed outstanding absorption capacity and shielding performance due to optimized impedance matching, enhanced conduction loss, dielectric polarization, and magnetic loss. Additionally, the structure exhibited exceptional mechanical strength, voltage-driven Joule heating, and superhydrophobic properties, making it suitable for versatile and long-lasting applications.
Article
Engineering, Multidisciplinary
Baojun Wang, Zijie Xu, Hao Wu, Fangzhi Huang, Fenghua Liu, Shikuo Li, Hui Zhang
Summary: Inspired by the layer-pillar-layer architecture, a controllable catalytic-assisted nitrogen-doped carbon nanotubes bridging strategy is proposed to enhance the dielectric dissipation ability of multilayered MXene units. The NCNTs bridges as pillars break the confinement effect of the multilayered MXene architecture and optimize impedance matching and increase dielectric constants. The unique NCNTs-encapsulated magnetic components prevent the agglomerations of CoNi nanoparticles and local mismatching problems, facilitating the construction of a three-dimensional magnetic coupling network.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Yanyan Wang, Shuaishuai Liu, Chao Xiao, Miao Jiang, Xin Ding, Hui Zhang, Kang Zheng, Lin Chen, Xingyou Tian, Xian Zhang
Summary: By preparing Ag-coated PI microspheres (PIM@Ag) as thermally conductive fillers, the out-of-plane thermal conductivity of PI films can be improved, which effectively alleviates thermal failure in advanced flexible electronics.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Yihong Gao, Kunpeng Wang, Chao Xu, Hao Fang, Huili Yu, Hui Zhang, Shikuo Li, Chuanhao Li, Fangzhi Huang
Summary: In this study, a heterogeneous bimetallic phosphide CoP-Ni2P catalyst with controllable phosphorus vacancy was successfully constructed to achieve efficient electrocatalytic reduction of NO3-. The introduction of phosphorus vacancy accelerates the kinetic process and improves the conversion, Faraday efficiency and selectivity of the catalyst. Furthermore, the application of vacancy engineering in electrocatalysis system and Zn-NO3 - battery system realizes pollution treatment and energy conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Wenxuan Hou, Baojun Wang, Shikuo Li, Fangzhi Huang, Hengxiu Yang, Hui Zhang
Summary: In response to the growing problem of electromagnetic radiation pollution, the development of new materials with efficient electromagnetic wave absorption capabilities is urgently needed. Heterointerface engineering can control the electromagnetic characteristics by adjusting conductivity and complex permittivity, allowing for excellent electromagnetic wave absorption. This study designed a N-doped honeycomb-like porous carbon matrix with embedded ultra-fine sized Mo2C nanoparticles through a spatially confined-etching strategy, resulting in multiple heterointerfaces and outstanding electromagnetic absorption performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Xiaolong Cheng, Hai Yang, Changyun Wei, Fangzhi Huang, Yu Yao, Ruilin Bai, Yu Jiang, Shikuo Li
Summary: A flexible and foldable film composed of ultrafine bismuth (Bi) nanowires and reduced graphene oxide (rGO) has been successfully constructed. The film exhibits stable cycling performance and superior rate capability when used as the anode of Na-ion batteries. The remarkable electrochemical performance is attributed to the multidimensional hybrid structure, where the rGO acts as a flexible current collector and carbon matrix, and buffers the volume change of the Bi nanowires.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yihong Gao, Kunpeng Wang, Shikuo Li, Hui Zhang, Fangzhi Huang
Summary: The electrochemical conversion of nitrate into ammonium through an electrocatalytic NO3- reduction reaction system and a Zn-NO3- battery system has been achieved by introducing Lewis acid sites and regulating the electronic structure of active sites. This strategy provides guidance for the design of high-performance electrocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Baojun Wang, Hao Wu, Wenxuan Hou, Zhifeng Fang, Heqin Liu, Fangzhi Huang, Shikuo Li, Hui Zhang
Summary: In this study, a strategy of inside-out Ostwald ripening and phase-evolution is proposed to prepare uniform-sized hollow carbon microspheres with optimized Maxwell-Wagner-Sillars effect (MWSE). The resulting microspheres integrate heterojunctions with a hollow carbon skeleton, enhancing the dielectric polarization relaxation response. Experimental results show that the fabricated microspheres exhibit superior electromagnetic wave absorption performances, surpassing many absorbers with a hollow structure.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yihong Gao, Kunpeng Wang, Shikuo Li, Hui Zhang, Fangzhi Huang
Summary: Introducing Lewis acid sites into the lattice of noble metal Pd doped CoP has been found to promote the adsorption and transformation of NO3- and enhance the ammonium selectivity. The Pd/CoP-based Zn-NO3- battery also exhibits good performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)