Article
Energy & Fuels
Zhuangwei Xiao, Weimin Chen, Zhigao Chen, Chen Chen, Wenzhu Cao, Faquan Yu
Summary: A sandwich-like carbon/MoS2 composite with excellent structural stability and high conductivity is designed and fabricated as an anode material for sodium-ion batteries. The double-carbon encapsulation plays a key role in achieving good stability and high capacity, enabling the reversible conversion of MoS2 and facilitating rapid electron/ion transfer and electrochemical reaction kinetics.
Article
Physics, Applied
Abhay V. Agrawal, Robert Lemasters, Chentao Li, Ali Mojibpour, Palash Bharadwaj, Hayk Harutyunyan, Mukesh Kumar
Summary: The study found that pyramid-like MoS2 flakes exhibit a high SHG signal due to their broken inversion symmetry and high thickness, while vertically aligned MoS2 flakes show a 34% enhanced SHG signal compared to pyramid-like MoS2, attributed to the midgap states generated by S vacancies. These midgap states confine photons and enhance the SHG properties, providing insights into the role of 2D material morphology in developing versatile optical and photonics devices.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Engineering, Environmental
Yue Li, Bo Yu, Bo Liu, Xiang Yu, Gang Qin, Menghao Fan, Yongcai Zhang, Longlu Wang
Summary: In this study, the researchers investigated the effects of phase and vertical structure of Molybdenum disulfide (MoS2) nanosheets on the activation of hydrogen peroxide (H2O2) in Fenton-like reactions. The results showed that the metallic 1 T phase of MoS2 favored the dark-Fenton-like reaction, while the biphase 1 T/2H MoS2 was beneficial for the photo-Fenton-like reaction. The vertical structure of MoS2 nanosheets was found to be more effective in promoting H2O2 activation compared to phase regulation. The study also proposed degradation pathways for tetracycline (TC) and demonstrated the stability and recyclability of the optimized MoS2-based catalysts. This work provides guidance for the design of highly efficient MoS2-based Fenton-like or photo-Fenton-like catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wanting Su, Man Lang, Qingxiao Zhang, Yanan Yang, Huili Li, Fang Zhang
Summary: In this study, MoS2/Ti3C2Tx composites were successfully constructed using a one-step hydrothermal method, where two-dimensional MoS2 nanosheets were grown on monodisperse Ti3C2Tx MXene layers. Due to the high ionic conductivity and good hydrophilicity of Ti3C2Tx, MoS2/Ti3C2Tx composites exhibited improved electrolyte-philic and conductive properties, resulting in reduced volume expansion effect of MoS2 and accelerated Zn2+ reaction kinetics. As a result, MoS2/Ti3C2Tx composites showed high voltage and excellent discharge specific capacity, as well as cycle stability, as cathode materials for ZIBs. This work provides an effective strategy for developing cathode materials with high specific capacity and stable structure.
Article
Electrochemistry
Hongxia Li, Hua Yang, Zhong Li, Xiaoyang Wang, Xianguo Liu, Sateesh Bandaru, Xuefeng Zhang
Summary: The FeNi3/TiO2 composite, consisting of vertically layered double hydroxide, exhibits a high density of active sites, promotes the exchange of ions and electrons, and synergistically suppresses the electron-hole recombination. The optimized composite shows a low overpotential and small Tafel slope, with no obvious current drop during stability testing. First-principles calculations demonstrate a synergistic effect of the FeNi3/TiO2 composite with the smallest theoretical overpotential.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Multidisciplinary
Yanqin Xue, Xiaojing Bai, Yanyan Xu, Qing Yan, Min Zhu, Kai Zhu, Ke Ye, Jun Yan, Dianxue Cao, Guiling Wang
Summary: Efficient hydrogen evolution reaction (HER) electrocatalysts, consisting of ultra-small MoS2 nanosheets with 5% Ni doping grown on hollow carbon microtubes, have been developed. The vertically oriented Ni-doped MoS2 nanosheets provide more active sites for HER, promoting ions transport, while the hollow carbon microtube substrate accelerates electrons transport and hydrogen release.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
M. Sabarinathan, Y. Hayakawa, S. Harish
Summary: Layered 2D molybdenum disulfide (MoS2) and Ce-doped MoS2 nanostructures were synthesized by the hydrothermal method. Ce-doped MoS2 exhibited enhanced degradation efficiency against methylene blue (MB) under visible light irradiation. The introduction of Ce ions effectively suppressed the generation of electron-hole pairs, leading to improved degradation efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Biotechnology & Applied Microbiology
Huizhi Chen, Xiaojun He, Zhan Zhou, Zhikang Wu, Hai Li, Xinsheng Peng, Yubin Zhou, Chaoliang Tan, Jianliang Shen
Summary: By exploring the effect of different crystal phases of MoS2 nanosheets on photothermal-enhanced sonodynamic antibacterial therapy, it was found that defective M-MoS2 nanosheets exhibit higher activity and can further enhance ultrasound-induced ROS generation performance under 1064nm laser irradiation. This study demonstrates the potential of metallic MoS2 nanosheets as a promising sonosensitizer for antibacterial therapy.
JOURNAL OF NANOBIOTECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Samira Yousefzadeh, Nayyer Mardani
Summary: MoS2 nanosheets were deposited on TiO2 nanotubes array (TNA) on Ti foil using electrophoretic technique to fabricate MS/TNA electrode for efficient electrocatalytic hydrogen evolution reaction with low onset potential and overpotential. The ordered tubular TNA support enhances electron transport toward MoS2 nanosheets, providing more active sites and improved interaction of the electrolyte and electrode in HER.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Bingmei Liu, Wangping Xu, Xia Long, Juexian Cao
Summary: The phase transition mechanism of single- and bilayer MoS2 induced by lithium intercalation has been systematically studied using first principles. It is found that lithium intercalation can effectively reduce the sliding barrier of the S atom layer. The phase transition in bilayer MoS2 is induced by S atom transition one by one, and consists of the formation, diffusion, and recombination of S vacancies. The phase transition originates from interlayer lithium defects, while monolayer MoS2 cannot undergo phase transition due to the larger sliding barrier of the S atom.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Qian Song, Congcong Sun, Zheng Wang, Xiaoxia Bai, Keming Wu, Qiang Li, Hui Zhang, Lijun Zhou, Haili Pang, Yanping Liang, Shuai Yue, Zhenhuan Zhao
Summary: This study presents an efficient all solid-state z-scheme heterojunction for nitrogen photofixation to produce ammonia, achieving a high yield of 205.7 μg/g(cat)/h without any sacrificial reagent. The high performance is attributed to multiple reaction sites provided by Fe doped MoS2 nanobundles, directed flow of photocarriers, and significantly improved charge transfer in the z-scheme system.
MATERIALS TODAY PHYSICS
(2021)
Article
Chemistry, Physical
Jaspal Singh, Sophia Akhtar, Trang Thu Tran, Jeongyong Kim
Summary: In this study, C3N4-functionalized MoS2 nanoflowers were fabricated using a hydrothermal method and applied for the removal of organic pollutants from water. The heterojunction formation between MoS2 and C3N4 nanosheets was confirmed, and the as-prepared 2D C3N4-MoS2 nanohybrids exhibited significant photocatalytic performance. The highest heterojunction density of the nanohybrids showed enhanced photodecomposition performance due to effective charge separation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Haoyuan Wang, Luxi Yang, Hengfeng Li
Summary: This study fabricates polyetherimide (PEI) matrix composite films with field-dependent nonlinear conductive behavior using MoS2 as filler. The MoS2 filled PEI composite film exhibits a nonlinear coefficient of 6.92 at a filler content of 15 phr, which is the percolation threshold. The nonlinear conductive behavior of the MoS2/PEI composites is driven by tunneling effect. The inclusion of MoS2 fillers enhances the dielectric constant of PEI.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Z. Liang, Y. Xue, X. Wang, X. Zhang, J. Tian
Summary: By incorporating oxygen-doped MoS2 as a cocatalyst, the photocatalytic hydrogen evolution of p-g-C3N4 nanosheets can be tremendously promoted, showing highly efficient performance and outstanding stability.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Multidisciplinary
Sagar Kite, Abhijit Nanaso Kadam, Dattatraya J. Sathe, Satish Patil, Sawanta S. Mali, Chang Kook Hong, Sang-Wha Lee, Kalyanrao M. Garadkar
Summary: In this study, TiO2 sensitized by MoS2 heterostructures were prepared and showed improved photocatalytic activity for the degradation of MO. The optimal loading of MoS2 was found to be 5.0 wt %, leading to a 21% increase in MO photodegradation efficiency under UV-vis light compared to pristine TiO2. The enhanced performance was attributed to efficient charge transfer, high surface area, and elevated surface oxygen vacancies.
Article
Materials Science, Ceramics
Xin-Yuan Sun, Xian-Chao Le, Zhuohao Xiao, Xuhai Shi, Wen-Feng Wang, Zuofu Hu, Qing-Mei Yang, Rongfei Wei, Hai Guo
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Ceramics
Liming Teng, Yuncheng Jiang, Wenna Zhang, Rongfei Wei, Hai Guo
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Ceramics
Rongfei Wei, Kunjiao Li, Jingjing Feng, Xiangling Tian, Yafei Shi, Xiaoman Li, Fangfang Hu, Hai Guo
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2020)
Article
Nanoscience & Nanotechnology
Xiangling Tian, Rongfei Wei, Zhijun Ma, Jianrong Qiu
Summary: In this study, we demonstrate a broadband saturable absorption in chemical vapor deposition grown monolayer transition-metal dichalcogenide MoSe2 by utilizing a high density of carrier injected by a femtosecond pulse. Our findings reveal a band edge shift induced by nonequilibrium occupation of electron-hole states after a Mott transition and the increase of carrier temperature under the pump excitation of 0.80 eV.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Jiaxuan Hu, Xing Zhang, Haihong Zheng, Fumin Lu, Xiusha Peng, Rongfei Wei, Fangfang Hu, Hai Guo
Summary: A novel sequence of Ba3-xSrxLu4O9: Er3+/Yb3+ phosphors was successfully prepared for investigating temperature sensing property. Energy transfer and lattice environment regulation significantly improved Er3+ up-conversion luminescence. Multi-mode optical thermometry exhibited superior temperature measurement performances in wide range, signal discriminability, sensitivity, and repeatability.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
HaiLin Gong, XiuSha Peng, Ghulam Abbas Ashraf, FangFang Hu, RongFei Wei, Hai Guo
Summary: NaY2F7:Er3+,Yb3+ glass-ceramics with high transmittance were successfully prepared using a melt-quenching technique and subsequent thermal treatment. The improved crystallinity led to significantly higher up-conversion emission intensity compared to the precursor glass. The Er3+ ions showed excellent optical thermometry performance with high sensitivity and temperature resolution for self-calibration temperature measurement.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Xiangling Tian, Rongfei Wei, Zhijun Ma, Jianrong Qiu
Summary: The study reveals the optical gain characteristics of monodisperse CsPbBr3 quantum dots crystallized in transparent glass. By controlling the temperature, the threshold of amplified spontaneous emission can be changed with a high gain coefficient. The crystallized CsPbBr3 quantum dots in the transparent glass exhibit good stability with small fluctuations in lifetime and long photostability. These findings pave the way for the potential applications of CsPbBr3-based glass-ceramics in light sources and optical amplifiers.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Li Wang, Fumin Lu, Rongfei Wei, Tao Xiong, Fangfang Hu, Xiaoman Li, Hai Guo, Xiangling Tian
Summary: Tb3+ doped sodium silicate glass with remarkable scintillation property and intense radioluminescence was successfully prepared by a feasible melt-quenching method. The damaged glass to X-ray can be recovered to the original state after heat treatment, showing excellent recovery. The scintillator also exhibited wonderful thermal stability with high fluorescence intensity at high temperatures. These results indicate the potential application of the obtained scintillating glass in practical settings.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xiangling Tian, Zhijun Ma, Jianrong Qiu, Rongfei Wei
Summary: Optical fibers were formed by replacing the glass core with a ceramic core. Nd3+ doped LaNbO4 nanocrystals were precipitated in the core after heat treatment. This fiber has promising optical properties and potential for use in NIR fiber amplifiers.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zhongliang Hu, Houquan Cui, Yirong Zhu, Gangtie Lei, Zhaohui Li
Summary: A FeS2@carbon/holey graphene oxide composite is prepared by self-assembling, which shows good electrochemical performance as an anode material for sodium-ion batteries. It has a unique structure that allows rapid migration of electrons and ions, maintains electrode integrity, and accommodates volumetric variation of FeS2 nanoparticles.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Ceramics
Fumin Lu, Li Wang, Fangfang Hu, Xiangling Tian, Hai Guo, Rongfei Wei
Summary: The study successfully synthesized Cs3GdGe3O9:Yb3+,Er3+ phosphors with good signal distinguishability and temperature detection accuracy. By designing multi-mode optical thermometric techniques, excellent sensitivity and thermal resolution were achieved.
CERAMICS INTERNATIONAL
(2022)
Article
Optics
Li Wang, Fumin Lu, Xiaoman Li, Fangfang Hu, Hai Guo, Rongfei Wei
Summary: A novel Cu+ doped borate glass scintillator was successfully fabricated by introducing Si3N4 in the melting process. The glass exhibits broadband luminescence under UV or X-ray excitation, with significantly enhanced luminescence after low temperature thermal treatment. It has a high quantum efficiency of 74.2% and superior thermal stability. The glass also presents outstanding optical thermometric performance. These findings highlight its potential applications in scintillators and temperature sensors.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Zhiwen Tang, Ren Zou, Xiaolan Chen, Zhaohui Li, Gangtie Lei
Summary: In this study, VO2 as a cathode material for AZIBs is synthesized by solvothermal method and electrochemically converted to Zn2V2O7, solving the problems of narrow voltage range and V4+ dissolution. The improved VO2 cathode offers high specific capacity and cycle stability under long cycles and high current density, making it a promising cathode material for AZIBs.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Siyu Guo, Ligan Ma, Muniran Abudureyimu, Rongfei Wei, Fumin Lu, Fangfang Hu, Hai Guo
Summary: By constructing phosphors with broadband emission, a NIR light source with excellent thermal stability and tiny chromaticity shift was developed. The phosphors were incorporated into a blue LED chip to create a NIR PC-LED with high output power and photoelectric conversion efficiency, showing potential application in nondestructive food analysis.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Rongfei Wei, Fumin Lu, Li Wang, Fangfang Hu, Xiangling Tian, Hai Guo
Summary: This study demonstrates quadruple luminescence thermometric techniques using Cs3GdGe3O9:Er3+ phosphors, which can achieve visual perception of temperature with different colors at different wavelengths. The thermometers show excellent sensitivity and resolution.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
