Article
Materials Science, Multidisciplinary
Yuan Niu, Ziwen Cheng, Yuanpu Xu, Zhibin Lu, Guangan Zhang
Summary: The study demonstrates the isomorphic phase transition of h-BN under biaxial strain due to the weakening of the B-N bond caused by strain. The transformation from AB1 stacking to AA2 stacking leads to a more stable structure.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Organic
Yong-Ze Chen, Ting-Hui Ding, Qiang-Qiang Li, Jian-Ping Qu, Yan-Biao Kang
Summary: This study reports the direct dehydrogenative C-H cleaving carbonylative lactamization of 2-arylanilines promoted by visible light and potassium bases. The solvent DMF serves as the sole carbonyl source without the need for an oxidant. The irreversible release of hydrogen gas leads to the formation of stable phenanthridinone products. This method provides a direct conversion of a wide range of 2-arylanilines into various phenanthridinones, making it useful for the synthesis of bioactive molecules and organic optoelectronic materials.
Article
Chemistry, Physical
Shuyi Shang, Guoqing Xiao, Chunlin Chen, Chunyan Chen, Ruili Li, Zhengwei Yang, Min Cao, Rui Zou, Yaling Tang
Summary: A novel high-flux CA@HMSN@h-BN/PDA membrane with a sandwich structure was developed for efficient removal of dye molecules and resistance to pollution in textile industry wastewater treatment. The membrane achieved high rejection rates without sacrificing flux and recyclability, thanks to the support layer of hollow mesoporous silica nanoparticles (HMSN) and the isolation layer of h-BN/PDA on the cellulose acetate (CA) membrane. The CA@HMSN@h-BN/PDA membrane exhibited superhydrophilicity and high pure water flux, while maintaining high rejection rates and stability. Furthermore, it demonstrated recyclability and stable performance in complex environments, making it a promising option for future wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Jiaoyang Chen, Pengfei Tan, Lu Yang, Mingyuan Zhang, Ruifeng Ren, Huanhuan Zhai, Tiangui Qi, Jun Pan
Summary: This study successfully synthesized La1.33-xNa3xTi2O6/Na3La2(BO3)(3) composites by exchanging ions with reductive NaBH4 at a relatively low temperature. Doping Na+ ions promoted the transformation of La2Ti2O7 into La1.33-xNa3xTi2O6 phase, while substituted La species turned into Na3La2(BO3)(3) phase. The well-crystallized La1.17Na0.48Ti2O6/Na3La2(BO3)(3) exhibited significantly enhanced photocatalytic H2 evolution activity due to optimized charge transfer and extended optical absorption.
MOLECULAR CATALYSIS
(2023)
Article
Materials Science, Multidisciplinary
Minggang Wang, Fazhan Wang, Jingcheng Zhang, Hongbo Wang, Yipan Wang, Hong Wu
Summary: The effect of h-BN size, strain rate and tensile direction on the tensile mechanical properties of Fe matrix in the presence of h-BN inclusions was investigated through molecular dynamics simulations. The results showed that the presence of h-BN inclusions reduced the tensile mechanical properties of Fe due to the difference in elastic modulus between the inclusions and matrix as well as stress concentration near the interface. The study also revealed the crystal structure changes, dislocation length variations, and double-peak phenomenon in the stress-strain curve caused by the h-BN inclusions.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Hao Zhang, Yingjun Pan, Yang Zhang, Guofu Lian, Qiang Cao, Linzhi Que
Summary: Laser cladding was used to fabricate self-lubricating composite coatings of Mo2FeB2/WC with addition of WS2, MoS2, and h-BN to enhance their tribological properties and service life. The addition of WS2, MoS2, and h-BN improved the bonding properties between the coating and substrate, resulting in the formation of sulfides and nitrides in the coatings. The self-lubricating phases significantly improved the tribological properties, reducing the coefficients of friction and wear rates. The wear mechanisms changed from adhesive and mild oxidative wear to abrasive and oxidative wear after the addition of WS2, MoS2, and h-BN.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Applied
Yuto Higuchi, Shunsuke Tanaka
Summary: Pure CHA zeolite was synthesized from H+-type FAU zeolite using an OSDA/seeds-free steam-assisted interzeolite transformation process. The Si/Al ratio of the final CHA zeolite product was maintained due to the reaction between OH- ions from KOH and H+ ions in FAU zeolite. The interzeolite transformation process also resulted in the spherical particle morphology of CHA zeolite.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Review
Health Care Sciences & Services
Gad Segal, Yonatan Martsiano, Alina Markinzon, Amit Mayer, Avner Halperin, Eyal Zimlichman
Summary: Digital transformation in healthcare systems can benefit from decentralized computer networks and blockchain technology by improving transparency, security, and incentivizing stakeholders. Blockchain-based architecture can be applied in various domains of healthcare, including medical logistics supply chains and scientific manuscript submission and review processes.
Article
Materials Science, Multidisciplinary
Jia Huang, Zhiying Gao, Haocheng Liu, Pengfei Ma, Yan Liu, Wei Ge, Fengping Luo, Liuxuan Cao, Jinchi Huang, Jianming Xue, Yugang Wang, Chenxu Wang
Summary: He-H synergistic effects play a crucial role in the performance of structural materials in fusion reactors. However, the high-intensity fusion neutron sources needed to study these effects are lacking. This study uses multiple ion beam irradiation as an emulation method and finds that the damage rate under such irradiation is significantly higher than that under fusion neutron irradiation. The study also reveals that the damage rate affects the evolution of cavities, with the size, density, and swelling of cavities decreasing as the damage rate increases. This effect is attributed to the constraint of cavity nucleation and growth processes, as well as the competition between the aggregation and binding of H/He/vacancies and the vacancies-interstitials recombination.
Article
Materials Science, Multidisciplinary
Ji Zhang, Qin Yang, Qichao Fan, Huabei Peng, Yonghao Zhang, Yu Teng, Shuke Huang, Yuhua Wen, Jie Chen
Summary: The NiTiHf-Nb alloy shows good workability and high-temperature shape memory properties. The martensitic transformation temperatures of (Ni50.1Ti34.9Hf15)(85)Nb-15 alloy gradually decrease with decreasing cooling rate, while the shape memory effect strain increases. The enhanced shape memory properties are attributed to the precipitation of the H-phase in furnace-cooled (Ni50.1Ti34.9Hf15)(85)Nb-15 alloy.
MATERIALS CHARACTERIZATION
(2022)
Article
Chemistry, Physical
Matlab N. Mirzayev
Summary: In this study, the heat transfer changes and the release of Wigner energy of hexagonal boron nitride under high flux neutron irradiation were investigated. The results showed a more complex heat transfer mechanism and an increase in Wigner energy with higher neutron flux. Surface morphology of the material was observed to swell with increasing fast neutron irradiation doses.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Abhilash Gunti, Jayanta Das
Summary: This study reports the effect of testing conditions on the nanomechanical behavior of the surface and inner core of as-cast plates of various bulk metallic glasses. The presence of solid-liquid like regions in the glassy structure affects the deformation mechanism, leading to the formation of shear bands. The rate sensitivity and deformation mechanism are influenced by the size and dynamics of shear transformation zones.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Sagi Chen, Daniel Tubul, Arie Venkert, Daniel Rittel
Summary: This study systematically characterizes the mechanical properties of three hexagonal metals before and after heat treatment. Texture variations have more influence on the dynamic shear failure propensity than purely microstructural changes resulting from the heat treatment. Grain growth induced by heat treatment does not significantly affect the dynamic shear failure toughness.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Computer Science, Interdisciplinary Applications
Katerina Anne Lai, Gaurav Saxena, Peter J. Allen
Summary: This study calculated lifetime bibliometric research performance norms for academic psychologists in the UK, stratified by academic level and university mission group. The findings showed that research performance increased with seniority, but the pattern observed was different from overseas. Academic psychologists in the Russell Group outperformed those outside of the group, mainly due to the strong research performance of the Russell Group professoriate. The research performance of UK academic psychologists was comparable to that of their Australian counterparts.
Article
Chemistry, Physical
Jia Liu, Xin Wang, Leiyang Zhang, Chunchun Li, Guanjun Zhu, Zhuang Miao, Amei Zhang, Hongping Hou, Zhenhua Zhou, Li Zhou, Ququan Wang, Hongliang Du
Summary: Photocatalytic water splitting for hydrogen production has been explored in energy science, but efficiency is often lacking. This study proposes a controlled synthetic strategy to develop concave gold nanorods (Au NRs) with enhanced photocatalytic performance. The concave Au NRs, synthesized in aqueous solution, exhibit high-index facets and unique plasmon resonance modes. By selectively growing Pt nanoparticles and CdS nanocrystals onto the Au NRs, the photocatalytic H2 production rate reaches as high as 21654.56 μmol•g^-^1•h^-^1, demonstrating the great potential of faceted metal nanostructures for efficient photocatalysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Organic
Mohammed H. Geesi, Oussama Ouerghi, Ammar Elsanousi, Abdellah Kaiba, Yassine Riadi
Summary: In this study, an ultrasonic-assisted Cu-doped TiO2 catalyzed synthesis method was developed for efficient synthesis of substituted-pyridopyrimidines.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Xuewen Xu, Ruihao Si, Yao Dong, Lanlan Li, Minghui Zhang, Xiaoyi Wu, Jun Zhang, Kun Fu, Yue Guo, Yanyan He
Summary: The theoretical study showed that single-atom catalysts supported on two types of borophene exhibit high activity and stability for oxygen evolution reaction and oxygen reduction reaction, with their activity closely related to the electronic structure of transition metals anchored on the borophene. The overpotentials for OER and ORR on these catalysts are comparable to those of Pt group metals and their oxides, highlighting their potential as promising bifunctional catalysts.
JOURNAL OF MOLECULAR MODELING
(2021)
Article
Engineering, Electrical & Electronic
Minghui Zhang, Ruihao Si, Xiaoyi Wu, Yao Dong, Kun Fu, Xuewen Xu, Jun Zhang, Lanlan Li, Yue Guo
Summary: The designed Hf2CO2/GaN heterostructures exhibit stable energy and suitable band structures for photocatalytic water splitting. The electron mobilities of these heterostructures are as high as 2 x 10(4) cm(2) V-1 s(-1), making them potential candidates for both photocatalytic water splitting and optoelectronic devices. The Hf2CO2/GaN heterostructures show enhanced response to visible and ultraviolet light compared to GaN monolayer.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Environmental
Xinyi Wan, Ting Wan, Chaochao Cao, Chengchun Tang, Yanming Xue, Youguo Yan, Zhen Li, Zhizhen Ye, Xinsheng Peng
Summary: A novel BN nanosheets supported magnetic ionic liquid membrane (BN-SMILM) with nanoconfined magnetic ionic liquid (MIL) in 2D nanochannels of BN membrane is developed for efficient CO2 separation. The nanoconfinement effect enhances CO2 transport, resulting in high selectivity and permeability above the Robeson upper-bound, and promising applications in CO2 separation with excellent long-term stability. This work provides a new strategy for preparing high-performance supported liquid membrane materials for practical environmental and energy applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Chaochao Cao, Jingwen Yang, Song Yan, Wenjuan Bai, Yuanhui Ma, Yanming Xue, Chengchun Tang
Summary: Turbostratic and oxygen-doped hexagonal boron nitride nanosheets with abundant defect sites were synthesized by pyrolyzing a mixture of melamine cyanurate and boric acid. Analysis revealed highly disordered structures and covalent oxygen-doping in the nanosheets, resulting in increased unpaired electrons, localized charge asymmetry, and enhanced spin polarization. Compared to bulk h-BN, the TO-BNNSs exhibited a lower optical bandgap, higher dielectric constant, increased saturation magnetic moment, and enlarged coercivity. These findings suggest that h-BN materials with turbostratic structure and heteroatom-doping have great potential in nanoscale optics, electronics, and magnetics.
Article
Chemistry, Multidisciplinary
Panpan Li, Xuejing Zhang, Jingnan Wang, Yanming Xue, Yongbin Yao, Shanshan Chai, Bo Zhou, Xi Wang, Nanfeng Zheng, Jiannian Yao
Summary: In this study, boron-oxygen-nitrogen nanotubes (BONNTs) enriched with O-O species were developed as a highly active, selective, and stable catalyst for oxidative propane dehydrogenation (OPDH).
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Qinghong Zhai, Jingwen Yang, Wei Quo, Jiaxiao Quo, Hejun Gao, Zexia Li, Peng Wang, Chengchun Tang, Yanming Xue
Summary: This paper presents a novel foam material filled with boron nitride nanosheets, which exhibits excellent mechanical properties and compression-driven triboelectric performance. The study highlights the potential applications of this foam material in various fields.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jingwen Yang, Wei Qiao, Jiaxiao Qiao, Hejun Gao, Zexia Li, Peng Wang, Chengchun Tang, Chaochao Cao, Yanming Xue
Summary: In this study, the electrochemical performance of lithium-sulfur batteries is enhanced by coating commercial membranes with hybridized BNNSs/CHFs material. The coating reduces resistance and promotes lithium ion diffusion, while also efficiently adsorbing LiPSs. This research provides a promising strategy for improving the performance of lithium-sulfur batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Jingwen Yang, Chaochao Cao, Wei Qiao, Jiaxiao Qiao, Hejun Gao, Wenjuan Bai, Zexia Li, Peng Wang, Chengchun Tang, Yanming Xue
Summary: Highly functionalized hexagonal boron nitride nanosheets were prepared and used to fabricate composite films with excellent performance for heat management in electronic devices. The use of these nanosheets can significantly enhance thermal conductivity, thus improving heat dissipation.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jiaxiao Qiao, Wei Qiao, Hejun Gao, JingWen Yang, Zexia Li, Peng Wang, Chaochao Cao, Jun Zhang, Chengchun Tang, Yanming Xue
Summary: In this work, a new foaming process was used to synthesize a high-quality hexagonal boron nitride (h-BN)-filled polydimethylsiloxane (PDMS) composite foam with enhanced multiple functions. The foam exhibits excellent shape-memory properties, compression-driven piezo-triboelectric (CDPT) responses, ultralow dielectric constants, enhanced sound adsorption capacity, and good thermal stability and flame retardancy. Therefore, it is considered as an excellent multifunctional material.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zexia Li, Jingwen Yang, Hejun Gao, Jiaxiao Qiao, Wei Qiao, Peng Wang, Jun Zhang, Chengchun Tang, Yanming Xue
Summary: A novel synthetic route to BN microspheres has been developed by controlling the controllable pyrolysis of polymerized spherical precursors. It is found that ammonia-annealing of an air-pyrolysis intermediate can result in BN microspheres with more uniform diameter distribution. Replacing part of melamine with dicyandiamide can increase the specific surface area to more than 1000 m2/g. This new microspherical BN preparation method is believed to be suitable for industrialization.
Article
Materials Science, Ceramics
Chaoze Liu, Zheng Zhou, Jiawei Ji, Yaxin Gu, Song Yan, Shaobo Yang, Rongjuan Zhang, Zhenya Liu, Yanming Xue, Chengchun Tang
Summary: This paper achieved the controllable preparation of spherical boron nitride (BN) particle from nanospheres to microsphere by changing the synthesis temperature of trimethyl borate (B(OMe)3) and ammonia. The effects of the lower reaction temperature (700-825 degrees C) and gas flow rate on the spherical precursor and the formation of onion-like structure were discussed. The addition of BNMS was investigated for its effect on the thermal conductivity of epoxy resin (EP) composites.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Jingwen Yang, Chaochao Cao, Wei Qiao, Jiaxiao Qiao, Chengchun Tang, Yanming Xue
Summary: A B/N co-doping reduced graphene oxide/boron nitride nanosheets (B/N co -doping rGO/BNNSs) heterostructure is designed as a multifunctional coating for high-performance lithium-sulfur (Li-S) batteries. The modified separator with B/N co-doping rGO/BNNSs shows excellent flexibility, thermal conductivity, and electrolyte wettability, providing a superior shielding effect to soluble lithium polysulfide (LiPSs) and improving the utilization of sulfur. The improved electrochemical kinetics resulting from B/N co-doping sites and rGO/BNNSs hetero-structure effectively promote Li-ions diffusion and catalyze the redox kinetics of Li2S and LiPSs, leading to a high reversible capacity and remarkable cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jingwen Yang, Chaochao Cao, Jiaxiao Qiao, Wei Qiao, Bo Jiang, Chengchun Tang, Yanming Xue
Summary: Researchers have designed a boron nitride nanosheets/reduced graphene oxide heterostructure to improve the commercial separator of lithium-sulfur batteries. This structure enhances the adsorption capacity for lithium polysulfides and catalyzes the conversion of sulfurated species. Due to the synergistic adsorption-catalysis effect, the battery exhibits superior reversible capacity and stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Lekai Zheng, Lina Hu, Yongchuan Hu, Fang Liu, Zhiming Liu, Yanming Xue, Jun Zhang, Hui Liu, Chengchun Tang
Summary: This study successfully developed a high efficiency and stable OER catalyst by constructing novel self-supported alpha-Co(OH)(2) coated Co3O4 nanosheet arrays. The optimized heterostructure with a suitable proportion of alpha-Co(OH)(2) to Co3O4 demonstrated excellent OER performance due to the optimized electronic structure and increased active sites.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahsa Saberian, Alireza Nezamzadeh-Ejhieh
Summary: CuO was successfully supported on clinoptilolite nanoparticles (NCP) via ion exchange and calcination, forming CuO-NCP photocatalysts. CuO-NCP exhibited enhanced photocatalytic activity towards tetracycline (TC), and the best degradation performance was achieved under optimal conditions (25 ppm TC solution, pH 4.8, and 0.5 g/L catalyst).
SOLID STATE SCIENCES
(2024)
