Article
Engineering, Environmental
Zhao Zhao, Changning Bai, Lulu An, Xiaofang Zhang, Fan Wang, Yin Huang, Mengnan Qu, Yuanlie Yu
Summary: A novel type of porous BN nano/microrods with high surface area, large pore volume, and small pore size has been reported, showing ultrafast adsorption rate for cationic dyes. These nanostructures also exhibit good biocompatibility with cell survival rate of 80% after 5 days, indicating potential application in wastewater treatment for selectively adsorbing cationic dyes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Composites
Shan Gao, Xue Bai, Junhong Li, Mang Han, Yimin Yao, Xiaoliang Zeng, Rong Sun, Ping Zhang
Summary: In this study, large-area and foldable boron nitride nanosheets-based films were successfully fabricated through the combination of electrospinning and hot-pressing. The obtained film exhibited outstanding thermal conductivity and electrical insulation, making it suitable for applications such as printed electrodes.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Jingguo Jia, Yunsheng Wang, Yajing Feng, Guoqi Hu, Jing Lin, Yang Huang, Yujie Zhang, Zhenya Liu, Chengchun Tang, Chao Yu
Summary: The study demonstrates the structure and CO2 adsorption performance of p-BN/HKUST-1 hybrid materials, with findings that mesopores can be controlled by adjusting the HKUST-1 content and growth cycles to enhance gas transmission quality and CO2 adsorption capacity. The hybrid materials prepared under optimal conditions exhibit excellent adsorption stability, with high CO2/N2 and CO2/CH4 adsorption selectivities predicted by the IAST model under specific conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Physics, Applied
Hongseok Oh, Youngbin Tchoe, Heehun Kim, Jiyoung Yun, Mingi Park, Seongjun Kim, Young-Soo Lim, Hanjoon Kim, Woosung Jang, Jaeyong Hwang, Yeda Song, Juntae Koh, Gyu-Chul Yi
Summary: The study reports the growth of large-scale, single-oriented ZnO nanowall networks on epitaxial h-BN films and their application in flexible inorganic UV light sensors, achieving better performance with high I-UV/I-dark ratio, faster recovery time, and low dark current. The ZnO/h-BN heterostructures show excellent performance even under highly bent conditions, showcasing potential in flexible optoelectronic device applications.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Liubov Belyaeva, Cyril Ludwig, Yu-Cheng Lai, Chia-Ching Chou, Chih-Jen Shih
Summary: This study demonstrates a new approach to produce strain-free 2D monolayers at a macroscopic scale by using hydrogel substrates. These substrates overcome the limitations of previous methods and show superior uniformity and reproducibility. The extreme structural adaptability of hydrogel surfaces enables ultimate strain relaxation and uniformity in all types of 2D materials, regardless of their crystalline structure. The results suggest a universal strategy for attaining uniform and strain-free sheets of 2D materials and highlight the potential of interfacing them with soft matter.
Article
Materials Science, Multidisciplinary
Eda Gokirmak Sogut, Deniz Emre, Ali Bilici, Necla Caliskan Kilic, Selehattin Yilmaz
Summary: A new hybrid adsorbent (g-C3N4/AFP) was prepared and investigated for its adsorptive behavior in the removal of dyes and heavy metals from aqueous solution. The results showed that Langmuir isotherms were the best model for dye adsorptions, while Freundlich isotherms were the best for Cu (II) ions. The maximum adsorption capacities of g-C3N4/AFP were higher than g-C3N4, indicating improved textural properties and presence of functional groups.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Vidur Raj, Dipankar Chugh, Lachlan E. Black, M. M. Shehata, Li Li, Felipe Kremer, Daniel H. Macdonald, Hark Hoe Tan, Chennupati Jagadish
Summary: Research has shown that wafer-scale, few monolayers thick hBN as a passivation layer can significantly improve solar cell performance, with a relatively low interface defect density and potential for high-quality passivation. hBN-based passivation layers are especially useful in cases where the growth of lattice-matched passivation layers is complicated.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Chemistry, Physical
Fei Zhong, Min Lu, Chunlin Chen, Lang Liu, Xulin Yang
Summary: A novel nanocomposite coating was developed by combining the barrier effect of boron nitride (BN) with the catalytic effect of transition metal ions. The fire performance and smoke suppression effects of the coating were discussed and analyzed, showing excellent fire resistance and smoke suppression.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Analytical
Sajal Biring, Annada Sankar Sadhu, Min-Chen Chuang, Kuan-Yu Chien, Hui Sun, Sheng-Chi Chen
Summary: In recent years, various methods have been used to detect heavy metal ions in drinking water or body fluids for environmental and health safety. The development of a simple and fast copper ion (Cu2+) sensor is of great importance. In this study, researchers have demonstrated an effective Cu2+ sensor by utilizing the change in electrical conductivity of Ti-doped copper nitride (Cu3N) in the presence of Cu2+ in solution. The sensor exhibits high response and a large linear dynamic range, making it a potential candidate for commercialization in the near future.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Stefan Goodwin, Zachary Coldrick, Sebastian Heeg, Bruce Grieve, Aravind Vijayaraghavan, Ernie W. Hill
Summary: This study presents a method for fabricating pristine monolayer graphene ultramicroelectrodes and characterizing their electrochemical properties. The cyclic voltammetry demonstrated expected behavior for ultramicroelectrodes, while reduction of IrCl62- was used to investigate electron transfer characteristics and reproducibility. Raman spectroscopy confirmed reduced charge doping in the graphene ultramicroelectrodes before and after electrochemical measurements.
Article
Materials Science, Ceramics
Weifang Han, Chenggong Yuan, Mengyuan Chen, Wenjun Ma, Fuwei Zhuang, Wei Li, Xiangdong Zhang
Summary: The study presents a facile method to fabricate boron nitride@multiwalled carbon nanotubes (BN@MWCNTs) fillers for polymer-based composites. The fillers consist of uniformly distributed MWCNTs firmly anchored on BN microrods. The resulting PS/BN@MWCNTs composites exhibit significantly higher thermal conductivity and satisfactory electrical insulation, showing great potential for thermal management applications.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Shanshan Ma, Yu Zhu, Jie Fei, Hejun Li
Summary: In this study, a hierarchical interfacial structure was constructed using enhanced building blocks to improve the tribological performance of carbon fiber/resin composites paired with copper dual disks. This structure reduced wear damage and decreased the wear rate.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Jingyan Chen, Shuyi Lin, Meiling Xu, Feilong Wang, Yejue Shao, Jian Hao, Yinwei Li
Summary: This study predicted a Li3C2 monolayer with a hydrogen storage capacity of 8.2% and a high average hydrogen desorption temperature. The effect of temperature and pressure on hydrogen storage performance was also explored. Additionally, a possible route for experimental growth of Li3C2 monolayer on suitable substrates was provided.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Physical
Baokang Yu, Jie Fan, Jianxin He, Yong Liu, Rongwu Wang, Kun Qi, PengJu Han, Zhouai Luo
Summary: This study presents a new method for high-yield preparation of boron nitride nanosheets (BNNS) through high-temperature oxidation and hydrothermal exfoliation. Flexible, insulating, and highly thermally conductive BNNS/PI nanocomposite paper was successfully fabricated using this method. The nanocomposite paper exhibited ultrahigh in-plane thermal conductivity and holds great potential for applications in flexible electronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Shaohua Chen, Chenyuan Zhu, Haoyang Gu, Li Wang, Jiajie Qi, Lixiang Zhong, Zhibin Zhang, Chunlei Yang, Guoshuai Shi, Siwen Zhao, Shuzhou Li, Kaihui Liu, Liming Zhang
Summary: The study successfully improved the selectivity of CH4 and achieved efficient electrochemical conversion by designing the interface of monolayer hexagonal boron nitride/copper. Experimental and theoretical calculations both demonstrated that the h-BN/Cu interfacial perimeters provide specific chelating sites to accelerate the conversion of CO.
Article
Chemistry, Physical
Jing Yu, Zhonglin Li, Jie Jiang, Wenjun Liu, Shuai Guo, Yao Liang, Bo Zhong, Yingying Wang, Mingqiang Zou
Summary: In this work, temperature-dependent polarized Raman spectroscopy was used to investigate the anisotropic thermal properties of atomically thin ReS2 flakes. It was found that the Raman modes of ReS2 redshift with increasing temperature and that the temperature coefficients differ along different crystal axes. Additionally, the broadening of phonon modes was attributed to phonon decay. This study will contribute to the understanding of thermal anisotropy in two-dimensional anisotropic materials.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Shujuan Yin, Yishan Wang, Xueqian Zhang, Chuncheng Wei, Xiaoxiao Huang, Guangwu Wen
Summary: In this work, Mo-doped SnS2/SnO2/NG nanohybrid materials were synthesized via a simple hydrothermal method. The hybrid material exhibited improved charge storage kinetics and practicality. The Mo-doped SnS2/SnO2 heterojunction interface enhanced charge transport and interfacial reaction kinetics, while the nanoscale morphology of Mo-SnS2/SnO2 quantum dots and the superior electrical conductivity and stability of NG substrate contributed to shortened Li+ diffusion path and mitigated volume change. As a result, the nanohybrid material showed excellent performance as an anode material for lithium-ion batteries.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Jiaxi Sui, Dongdong Liu, Chunyu Wang, Lijuan Wang, Bo Zhong, Yuanyuan Ma
Summary: In this study, a woolen ball-like K2Ti8O17 (KTO) nanomaterial is synthesized through a hydrothermal surface corrosion reaction between KOH solution and MAX phase Ti2AlN. The KTO exhibits excellent SERS capabilities to contaminating dyes and shows promising potential for practical applications. The enhanced SERS performance of KTO is attributed to its appropriate energy band structure and robust adsorption capacity, which enable the charge transfer mechanism.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jiaxi Sui, Dongdong Liu, Chunyu Wa, Lijuan Wang, Bo Zhong, Yuanyuan Ma
Summary: A sea urchin-like K2Ti8O17 (KTO) nanomaterial was prepared by a facile hydrothermal method and showed excellent potential as a non-metallic SERS substrate for dye detection in the environment. The sea urchin-like KTO exhibited enhancement factors of 3.8 x 105 and 2.45 x 105 for crystal violet and methylene blue, respectively, with minimum detection limits of 10-8 M. The superior SERS performance of the sea urchin-like KTO was attributed to its excellent charge transfer and probe adsorption capability, as confirmed by energy band and zeta potential analysis. The practical application potential of the sea urchin-like KTO was further demonstrated through scenario simulation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Tian-tian Li, Chi Wang, Yu An, Long Xia, Xin-yu Wang, Xiao-xiao Huang
Summary: A high efficiency and absorption-range electromagnetic wave absorber was proposed by controlling the interface components, achieving effective frequency modulation. The theoretical analysis confirmed the optimal relaxation polarization range for dielectric loss materials, which exhibited good absorption performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Mechanical
Jianing Zhu, Qunfeng Zeng, Bin Zhang, Chao Yan, Wanjun He, Naiming Lin
Summary: In order to improve the lubrication performance of WS2-based coatings at elevated temperature, the mechanisms of enhancing the tribological performance of WSNb coatings at elevated temperatures are investigated. The WSNb coating doped with 11.9 at.% Nb exhibited excellent anti-friction and wear resistance, achieved a low coefficient of friction of 0.02 at 400 degrees C, and its wear resistance was much better than that of WS2-based coatings. The Nb metal and its sulfide in the coating are more sensitive to oxygen than WS2 at 400 degrees C, which reduces the oxygen concentration between the friction pairs and protects the WS2 lubricating phase from being oxided. In addition, Nb enhances the hardness and Young's modulus of the coatings through the solid solution strengthening effect, generating a more continuous and stable lubricating film during the sliding process. First-principles calculation results demonstrated that the Nb spontaneously forms Nb-S bonds with S atoms in the coating. The molecular details of the Nb-S formation have been investigated in depth.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yinzhong Bu, Kaihuan Yu, Bin Zhang, Bin Kuang, Li Qiang
Article
Chemistry, Physical
Fanghan Chi, Jiabin Hou, Guorong Cui, Bo Zhong, Wenzhen Chen, Wencong Zhang
Summary: GNPs/Ti6Al4V composites were prepared by pre-sintering and canned extrusion. Three composite powders with different GNPs defect densities and dispersion effects were obtained. Higher GNPs defect density induced severe interface reaction and more TiC particles, which affected the interfacial bonding. EBSD showed that GNPs promoted recrystallization in the matrix and the dispersion effect influenced the recrystallization process, increasing the content of equiaxed grains. This article provides new insight into adjusting the interface and microstructure of GNPs/Ti6Al4V composites.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Yuanyuan Ma, Yuanhao Jiang, Jinrui Qian, Chunyu Wang, Sibo Kang, Guoqin Chen, Bo Zhong
Summary: The Co-MOF/Graphite nanoflakes (GNs) derived microwave absorbing material supported by MOF structure was obtained through hydrothermal method and subsequent calcination treatment. The sample pyrolyzed at 600 degrees C showed the best reflection loss value of -43.62 dB at 15.84 GHz, with a thickness of only 1.6 mm and an effective absorption bandwidth (EAB) of 5.2 GHz (12.8-18 GHz). The Co-MOF/GNs derivatives possess thinner absorbent thickness and wider EAB compared to most MOF-derived absorbing materials. Its excellent electromagnetic wave absorption performance is attributed to dipole polarization, interface polarization, and reflection and scattering effects of the sandwich micro-structure. This study provides a reference for the design of lightweight and efficient radar absorbers suitable for X and KU bands.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Hongyu Liang, Caihong Fu, Tianqiang Yin, Manqiang Liu, Kaixiong Gao, Bin Zhang, Xijun Hua, Yonghong Fu, Yongfeng Bu
Summary: A mixed unequal-diameter sphere additive/ionic liquid analogue (Uneq-SA/ILA) model system is designed to achieve stable superlubricity with a low coefficient of friction (as low as 0.0046) and negligible wear. The excellent lubrication performance is attributed to the synergy of asymmetric contact between unequal-diameter spheres and low-shear-viscosity ILA. The study deepens the understanding of the asymmetric contact function of solid additives and offers insights for the design of next-generation solid additive/liquid superlubrication systems.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Q. Jia, Z. Yang, B. Zhang, K. Gao, L. Sun, J. Zhang
Summary: Superlubricity is a revolutionary advancement in tribology that enables mechanical systems to have energy-saving and long-lasting performance. This study proposes a new strategy to achieve macroscale superlubricity (friction coefficient as low as 0.003) by sliding amorphous MoS2 (WS2) against hydrogenated amorphous carbon films. The superlubricity is attributed to the transformation of amorphous MoS2 into two-dimensional crystal MoS2 and the formation of crystalline/amorphous heterogeneous interfaces with weak interfacial interaction.
MATERIALS TODAY NANO
(2023)
Article
Chemistry, Physical
Zhihao Chen, Xiaolei Xing, Tao Zhang, Silong Zhang, Qingxiang Yang, Bin Zhang, Kaixiong Gao, Yefei Zhou
Summary: Previous experimental research has shown that the amorphous carbon film undergoes a structural transformation from sp3-C atom to sp2-C atom during the frictional process. However, it is unclear if the transformation can occur in the opposite direction from sp2-C atom to sp3-C atom. This study investigates the impact of frictional load and velocity on the structural transformation of the amorphous carbon film. The results indicate that pressure and shear force cause the generation of sp3-C atoms during friction, and this metastable transformation recovers when the force disappears. Additionally, frictional load and velocity have different effects on the structural transformation.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Haiyang Gao, Bin Zhang, Panfeng Yang, Zhengde Wang, Ningning Zhou, Dianzhong Wei
Summary: In this study, it was found that texture dominates the hardness and wear properties of TiN film. The increase and decrease of texture coefficient result in changes in hardness, roughness, wear rate of the TiN film, and wear volume of GCr15 ball. Additionally, a tribo-chemical reaction in the friction pair produces a graphite-like tribo-layer with anti-friction effect.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Physics, Applied
Zaixiu Yang, Zhenwei Niu, Mei Tang, Junyan Zhang, Bin Zhang
Summary: This study investigates the effects of nitrogen doping on the mechanical properties of steel and the adhesion with different interlayers. The results indicate that nitrogen doping can increase the hardness of steel and affect the adhesion between steel and different interlayers.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Fanfan Lv, Wei Wang, Bin Zhang, Qian Jia, Yuan Gao, Kuaishe Wang
Summary: Frictional losses significantly affect the reliability and service life of mechanical components. In this study, black phosphorus quantum dots were prepared and used as aqueous solution lubricants. The addition of these quantum dots resulted in a significant reduction in the coefficient of friction and wear rate, mainly due to the formation of a tribofilm on the worn surface as well as its adsorption and rolling effect.
ACS APPLIED NANO MATERIALS
(2023)