Article
Chemistry, Multidisciplinary
Kenan Elibol, Clemens Mangler, David D. O'Regan, Kimmo Mustonen, Dominik Eder, Jannik C. Meyer, Jani Kotakoski, Richard G. Hobbs, Toma Susi, Bernhard C. Bayer
Summary: This research demonstrates the self-assembly of single indium atoms and few-atom indium clusters in suspended monolayer graphene membranes, anchored to substitutional silicon impurity atoms. Scanning transmission electron microscopy (STEM) revealed that the symmetry of the indium structures is dependent on the coordination of the silicon anchors. Furthermore, electron beam irradiation in STEM enables the observation of formation, restructuring, and translation of the silicon-anchored indium structures.
Article
Materials Science, Multidisciplinary
Y. Q. Hu, P. Huang, F. Wang
Summary: The storage capacity of helium atoms in nanopore graphene/tungsten composites was investigated in this study. Molecular dynamics simulation results showed that helium atoms could be effectively absorbed in the nanopore, which can relieve stress concentration and delay the formation of large-sized helium bubbles, thus mitigating irradiation embrittlement.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Engineering, Environmental
Daiwen Tao, Xiong Liu, Zeming Li, Hui Yang, Jinyu Wang, Qilong Zhang
Summary: By anchoring Pb single atoms on reduced graphene oxide, the parasitic hydrogen evolution reaction of negative plates in lead-carbon batteries can be greatly reduced, extending their service life in hybrid electric vehicles and large-scale energy storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yue Zhang, Xin He, Xiuchun Cong, Qi Wang, Huajie Yi, Sen Li, Changhai Zhang, Tiandong Zhang, Xuan Wang, Qingguo Chi
Summary: ZnO nano-shell and BFSTO nano-shell coated BZCT were successfully synthesized and added to the PESU matrix, which significantly improved the discharged energy density and efficiency. The 2 wt% BZCT@BFSTO/PESU composite achieved a discharge energy density of 10.5 J/cm3 and a charge-discharge efficiency of 84%. This in-depth research on PESU-based composite dielectrics provides an experimental and theoretical basis for improving the dielectric properties and energy storage performance of polymer-based composites, promoting the development of new dielectric capacitors, and paving the way for their applications in the field of energy storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
C. -Y. Chang, A. A. Kashale, C. -M. Lee, S. -L. Chu, Y. -F. Lin, I-W. P. Chen
Summary: A novel coordination adsorption strategy was developed to synthesize an efficient oxygen evolution reaction (OER) catalyst, which exhibited stable overpotential and long-term durability, outperforming the state-of-the-art RuO2.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Physical
Yu Gao, Lining Pan, Qiang Wu, Xueheng Zhuang, Guoguo Tan, Qikui Man
Summary: Honeycomb-like SnS2/GO composites were fabricated via a facile chemical bath deposition method for optimizing the microwave absorption performances. The composites exhibited excellent microwave absorption ability with a wide effective absorption bandwidth (EAB) and strong absorption, which could be attributed to the strong interfacial polarization and good impedance matching. The SnS2 content in the composites could be adjusted to tune the impedance matching and attenuation constant.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Zichun Zhang, Ge Zhang, Huangkai Wang, Chuang Wang, Qianmei Li, Xianyou Wang, Yong Pei, Haibo Wang, Zhenhua Yang
Summary: CuP2 is a hopeful anode material for sodium-ion batteries with considerable theoretical capacity. However, it suffers from rapid capacity decline and cyclic reversibility issues. Single vacancy graphene (SVG) plays a key role in regulating the electrochemical properties of CuP2, leading to more stable reaction energy barrier and higher theoretical capacity of CuP2/SVG composites.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Paper & Wood
Lijun Jin, Qinjia Chen, Xinjun Hu, Huqiang Chen, Yue Lu, Yujin Zhang, Hongyu Zhou, Yongxiao Bai
Summary: This study combines micron-sized graphene oxide (GO) with chitosan fibres to enhance their mechanical properties and antibacterial performance, providing potential applications in biomedical and medical materials.
Article
Engineering, Mechanical
Shengfang Yu, Yawen Yang, Limin Ma, Weihong Jia, Qi Zhou, Jinyu Zhu, Jinqing Wang
Summary: The synergistic effect between nanomaterials with different dimensions can enhance wear and corrosion resistance of surface protective coatings. This study found that the GO-pva-SiC coating exhibits good lubricating performance under low load, while the RGO-pva-SiC coating has a longer wear life under high load. Furthermore, the addition of SiC nanowires can enhance the corrosion resistance of graphene-based coatings.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zhifen Fu, Jingru Xie, Can Li, Simei Zhai
Summary: Li2Mg3SnO6-based ceramics with xwt%BLCT (Bi2O3-LiF-CaF2-TiO2, x = 4, 8, 12, 16) were investigated for their sintering properties, phase composition, microstructure, and microwave dielectric properties. The results showed that all sintered samples consisted of the main phase Li2Mg3SnO6 and the second phases Bi2O3, Mg2SnO4, and CaSnO3. The addition of BLCT significantly improved the sintering ability and dielectric performance of the ceramics. The densification temperature decreased from 1360°C to 1050°C with the addition of BLCT. As x increased, the quality factor (Q x f) decreased, while the dielectric constant (er) and temperature resonance frequency coefficient (zf) increased. The Li2Mg3SnO6-12wt%BLCT ceramics exhibited the best comprehensive performance with er of -12.0, Q x f of 10470 GHz, and zf of -2.1ppm/°C, which makes it a potential alternative material for communication components.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Multidisciplinary Sciences
Musa Khan, Mian Muhammad, Zeid A. AlOthman, Won Jo Cheong, Faiz Ali
Summary: A highly efficient adsorbent was synthesized for the removal of pesticides from wastewater. The composite material showed improved adsorption capacity and was characterized using various analytical techniques. Optimization of adsorption parameters such as pH, contact time, and temperature was performed, and the adsorption process followed specific kinetic and equilibrium models.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Chen Chen, Shenglun Gao, Wange Song, Hanmeng Li, Shi-Ning Zhu, Tao Li
Summary: Manipulating spin light using metasurfaces with controlled geometric phase has been successful, especially with the introduction of local phase manipulation technique with planar chiral meta-atoms, which enhances the flexibility and functionality of spin light control in metasurface designs.
Article
Engineering, Environmental
Yuan-Zheng Zhang, Chao Liang, Hao-Peng Feng, Wei Liu
Summary: Photocatalysis technology shows promise in H2O2 production, but its activity is regulated by the 2e- O2RR. In this study, a robust single atom photocatalyst (NiCN-x) anchored on ultrathin g-C3N4 is demonstrated for artificial H2O2 production under visible light irradiation. The NiCN-4 catalyst exhibits high efficiency, selectivity, and degradation performance due to the boosting 2e- O2RR process and unique electronic structure.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Xiaojin Li, Quanxin Yang, Hongliang Liu, Yingying Ren, Xuping Wang, Pengfei Wu
Summary: Enhancements of both conductive and dielectric properties were observed under UV illumination using a ferroelectric absorber, potassium tantalate niobate (KTa1-xNbxO3, KTN). The UV-generated electron-hole pairs weakened the intrinsic ferroelectric polarization while enhancing the conductive property. The UV-induced heat effect caused the enhancement of the dielectric property, as confirmed by maximal rectification ratio showing opposite trends between direct heating and UV illumination processes.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Shaotang Dong, Guoqing Xiao, Chunlin Chen, Chunyan Chen, Zhengwei Yang, Fei Zhong, Mingtan Wang, Rui Zou
Summary: Layered double hydroxides serve as an effective inorganic nano-fire retardant that can enhance the fire resistance of composite coatings. Among them, the Zn-Al/LDH@RGO-based fireproof coatings exhibit superior fire performance, showing the lowest backside temperature and highest fire retardant performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Yuping Wang, Wenxu Zhong, Shen Zhang, Xiao Zhang, Chunling Zhu, Xiaoli Zhang, Xitian Zhang, Yujin Chen
Summary: This study presents a novel approach to address the issue of particle agglomeration in Metal-Organic Frameworks (MOFs)-derived magnetic nanostructures by crosslinking ultra-long nanowires. Utilizing CoZn-MOF as a precursor, high-performance functional materials with excellent electromagnetic wave absorption properties were synthesized.
Article
Physics, Applied
Jia Xu, Minjie Liu, Xinci Zhang, Bei Li, Xiao Zhang, Xiaoli Zhang, Chunling Zhu, Yujin Chen
Summary: An efficient strategy for constructing ultralight electromagnetic wave absorbers with strong absorption performance was proposed in this study. N-doped graphene aerogels containing isolated single cobalt atoms (Co-SAs/GAs) were successfully synthesized and exhibited excellent absorption performance. The relationship between the single-atom structure and electromagnetic wave absorption property was comprehensively investigated through theoretical calculations and experimental results.
APPLIED PHYSICS REVIEWS
(2022)
Article
Electrochemistry
Tianqi He, Jinhang Li, Zhengzhi Luo, Yuqiang Zhang, Yingying Zhao, Xitian Zhang, Yujin Chen
Summary: This study proposes a new strategy to synthesize high-capacity V2O5 cathodes, successfully preparing V2O5-x@CCSMs with superior electrochemical performance, providing a new approach for the development of zinc-ion batteries.
Article
Chemistry, Physical
Wenxu Zhong, Bei Li, Zheng Ma, Chunling Zhu, Feng Yan, Xitian Zhang, Yujin Chen
Summary: A double-salt template method is used to fabricate N, S-codoped graphitic carbon nanoframes (GF) anchored on graphene sheets (GS). The numerous interfaces between the GF and GS enhance the electromagnetic wave absorption performance of the sample. The N, S-GF/GS exhibits excellent absorption performance at a low filler ratio, providing a promising approach for high-performance electromagnetic wave absorbers.
Article
Chemistry, Physical
Yuping Wang, Yanan Shi, Xiao Zhang, Feng Yan, Jianzhong Zhang, Xitian Zhang, Yujin Chen, Chunling Zhu
Summary: In this study, atomically dispersed Mn sites were introduced into N-doped carbon nanotubes to fabricate Mn-N-x/NCNT with tubular morphology and large surface area. This material exhibited excellent EMW absorption property at low filler ratio and matching thickness. Experimental and theoretical results demonstrated that the atomically dispersed Mn sites adjusted the electronic structure and polarizability of NCNTs, leading to enhanced conductivity and polarization losses, and thus improved EMW property.
Article
Chemistry, Multidisciplinary
Xinci Zhang, Bei Li, Jia Xu, Xiao Zhang, Yanan Shi, Chunling Zhu, Xitian Zhang, Yujin Chen
Summary: This study achieves the uniform dispersion of Ni-single metal atoms (Ni-SAs) within hierarchically porous carbon nanoflowers (Ni-SA/HPCF) through spatial confinement of Ni ions in metal-organic frameworks (MOFs) and subsequent carbonization process. The Ni-SA/HPCF exhibits unexpected electromagnetic wave (EMW) absorption properties with high surface area and abundant mesopores. The uniformly dispersed Ni-SAs break local symmetry of the electronic structure, enhance electrical conductivity, and the unique 3D hierarchical porous morphology improves the impedance matching property, synergistically improving the EMW absorption performance of the Ni-SA/HPCF.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Hongyi Xu, Bei Li, Xinyu Jiang, Yanan Shi, Xiao Zhang, Chunling Zhu, Xitian Zhang, Yujin Chen
Summary: We have successfully fabricated N-doped carbon fibers with vertically grown N-doped carbon nanotubes using electrospinning technique and high-temperature carbonization process. Experimental and theoretical studies have shown that this hierarchical structure exhibits excellent electromagnetic wave absorption performance and provides an efficient solution for high-efficiency electromagnetic wave absorption.
Article
Chemistry, Multidisciplinary
Bei Li, Ziqian Ma, Xiao Zhang, Jia Xu, Yujin Chen, Xitian Zhang, Chunling Zhu
Summary: Small-sized NiO/Ni particles with heterojunctions were constructed on N-doped hollow carbon spheres using SiO2 as a sacrificing template. The NHCS@NiO/Ni exhibited excellent microwave absorbability with a minimum reflection loss of -44.06 dB and a wider efficient absorption bandwidth of 4.38 GHz, surpassing most reported hollow absorbers. The outstanding performance was attributed to the balanced dielectric loss and optimized impedance matching characteristic of NHCS@NiO/Ni due to the presence of NiO/Ni heterojunctions.
Article
Chemistry, Physical
Zhibo Zhao, Bo Kang, Jia Xu, Chunling Zhu, Xiaoli Zhang, Xitian Zhang, Yujin Chen
Summary: The study developed a simple method to prepare Ni@NCNT/NCHSs, which have hierarchical and hollow features and exhibit high-efficiency electromagnetic wave absorption performance.
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
Yuqian He, Feng Yan, Xiao Zhang, Chunling Zhu, Yingying Zhao, Bo Geng, Shulei Chou, Ying Xie, Yujin Chen
Summary: Dual sites in the Co-catecholate (Co-CAT) are created through Ru, Ir, or Rh doping for overall water splitting. Among them, RuCo-CAT exhibits excellent bifunctional activities, outperforming benchmarked Pt/C for the hydrogen evolution reaction (HER) and RuO2 for the oxygen evolution reaction (OER). The incorporation of Ru atoms greatly improves the electrical conductivity and capacity of water adsorption of Co-CAT, synergistically improving the bifunctional activity. This strategy offers novel insights into designing bifunctional MOFs for overall water splitting.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ziqian Ma, Minjie Liu, Bei Li, Feng Yan, Yujin Chen, Xitian Zhang, Chunling Zhu
Summary: Combining hollow materials with magnetic particles to construct hierarchical structures can enhance microwave absorption properties, but the fabrication of such materials is challenging. In this study, a two-step method is developed to synthesize hierarchically nitrogen-doped carbon hollow microspheres assembled with loose and porous magnetic carbon sheets. The resulting nitrogen-doped carbon hollow microspheres exhibit excellent microwave absorption properties due to their unique structure, achieving a minimal reflection loss of -39.87 dB at a frequency of 7.76 GHz. The computer simulation technology (CST) further confirms the practical applicability of these microspheres.
Article
Chemistry, Multidisciplinary
Xiaocheng Fan, Chunling Zhu, Yuqian He, Feng Yan, Shu-Lei Chou, Minjie Liu, Xiaoli Zhang, Yujin Chen
Summary: A NiFe/MoC catalyst is prepared and optimized for the oxygen evolution reaction in alkaline seawater electrolysis. The catalyst exhibits high current density and low overpotential, demonstrating excellent performance and stability for seawater electrolysis.
Article
Chemistry, Multidisciplinary
Xiaocheng Fan, Bei Li, Chunling Zhu, Feng Yan, Yujin Chen
Summary: This research developed a RuNi/MoC@NC nanowire catalyst for hydrogen evolution reaction (HER) in alkaline seawater, showing high efficiency and stability. The catalyst, when used with nickel foam and nickel-iron layered double hydroxide (NiFe LDH) electrolyzer, could achieve full water splitting with long-term stability.
Article
Chemistry, Physical
Xinzhi Ma, Mingyi Zhang, Fahad Aza, Qiong Gao, Zhikun Xu, Lin Li, Lili Wu, Xitian Zhang, Yujin Chen
Summary: This study comprehensively uncovers the catalytic mechanism of interfacial photothermal effect for oxygen evolution reaction (OER) under concentrated solar irradiation (CSI) and reveals the superior catalytic activity of (Co0.8Ni0.2)(3)C.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
