Article
Materials Science, Ceramics
Guoxun Sun, Jianqiang Bi
Summary: This study reports a scalable method to exfoliate boron nitride nanosheets in ionic liquids via shear-assisted thermal treatment, successfully preparing few-layer BNNSs with well-preserved structural integrity. The synergistic effects of physical adsorption, intercalation of IL molecules, chemical interactions between HF and h-BN, activation energy from heat treatment, and shear forces from stirring contribute to the exfoliation of BNNSs.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Shahram Shaybanizadeh, Alireza Najafi Chermahini
Summary: Through sonication and heat treatment, we successfully produced BNNSs using a simple, affordable, and high-efficiency method. Various analyses confirmed the structure and properties of the obtained BNNSs.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Zheng Zhu, Xuran Xu, Yihang Yao, Cong Guo, Jingyu Chen, Yongzheng Zhang, Kai Wu
Summary: Gallium-based liquid metal was found to reduce interlayer interactions in boron nitride nanosheets (BNNSs), leading to high exfoliation efficiency. The exfoliated BNNSs still maintained electrical insulating properties, showing potential in thermally conductive yet electrically insulating applications.
ACS APPLIED MATERIALS & INTERFACES
(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
Materials Science, Textiles
Dukeun Kim
Summary: The thermal conductivity of polymer composites can be enhanced by embedding BN nanosheets, resulting in a 2-fold increase in thermal conductivity.
FIBERS AND POLYMERS
(2022)
Article
Nanoscience & Nanotechnology
Mingzhe Yang, Dechao Hu, Youkui Guo, Xusheng Zhao, Wenshi Ma
Summary: This study successfully obtained hydroxylated BNNS (BNNS-OH) using a glucose-assisted ball milling combined with a cosolvent ultrasonication method, and grafted end carboxylated hyperbranched polymer (CHBP) onto BNNS to achieve high thermal conductivity in EP resin. The BNNS-CHBP/EP composites showed excellent thermal stability and low dielectric loss, highlighting the potential for BN application in electronic packaging underfill materials.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Yufeng Bai, Huizhi Yang, Lili He, Chunhua Ge, Renchang Zhai, Xiangdong Zhang
Summary: In this study, core-shell hydroxylated boron nitride nanosheets@Fe3O4@PAn nanocomposites were synthesized. These composites exhibited excellent microwave absorption properties and thermal conductivity, offering solutions to electromagnetic wave pollution and thermal management issues.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Atefe Farahani, Masoud Jamshidi, Masumeh Foroutan
Summary: In this study, boron nitride nano sheets (BNNSs) were successfully prepared by exfoliation using mono ethylene glycol (MEG) as an exfoliating agent. The use of MEG resulted in higher yield and thinner nanosheets compared to the use of isopropyl alcohol (IPA)/water mixture. Silicon rubber nanocomposites containing pure and exfoliated BNNSs showed improved thermal and electrical performances. Exfoliated-BNNSs exhibited significantly higher thermal conductivity and electrical volume resistivity compared to pure BNNSs.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Applied
Cunzhi Zhang, Ming Wang, Xuejiao Lin, Shenming Tao, Xijun Wang, Yian Chen, Hongchen Liu, Yixiang Wang, Haisong Qi
Summary: In this study, high-quality boron nitride nanosheets were successfully exfoliated using eco-friendly holocellulose nanofibrils assisted ultrasound treatment. The resulting nanosheets had excellent dispersibility and high yields, and were assembled with cellulose fibers into nanocomposite films through interface engineering. The obtained films exhibited outstanding thermal conductivity and showed great potential for thermal management in flexible electronics applications.
CARBOHYDRATE POLYMERS
(2022)
Article
Nanoscience & Nanotechnology
Jiemin Wang, Tairan Yang, Zequn Wang, Xuhui Sun, Meng An, Dan Liu, Changsheng Zhao, Gang Zhang, Weiwei Lei
Summary: In this paper, a soft thermochromic composite (STC) membrane with a layered structure is proposed, which has stretchability, high in-plane thermal conductivity, low thermal contact resistance, strong yet sustainable adhesion forces, and self-healing efficiency. As a self-adhesive heat spreader, it achieves efficient cooling of various soft electronics with a temperature drop of 20℃ compared to the polyimide case. The chameleon-like behavior of STC enables temperature monitoring by the naked eye, enabling smart thermal management.
NANO-MICRO LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Rodrigo F. B. de Souza, Victoria A. Maia, Priscilla J. Zambiazzi, Larissa Otubo, Dolores R. R. Lazar, Almir O. Neto
Summary: In this work, a Non-Thermal Plasma source was utilized to exfoliate boron-nitride powders, resulting in the generation of hexagonal BN nanosheets. The exfoliation of hBN occurred along their transverse axis, preserving the hexagonal structure, and the few-layered structure was confirmed by various analytical techniques such as TEM, XRD, Raman spectroscopy, and FTIR.
MATERIALS TODAY ADVANCES
(2021)
Article
Chemistry, Physical
Prachi Awasthi, Raghubeer S. Bangari, Niraj Sinha
Summary: In this study, boron nitride nanosheets (BNNSs) were synthesized and incorporated in polyvinylidene fluoride (PVDF)-based membranes for simultaneous removal of tetracycline (TC) and ofloxacin (OFL) from water. The BNNSs-PVDF membrane exhibited a maximum adsorption capacity of 470.4 mg g(-1) for the TC and OFL mixture and showed good regeneration behavior. These results demonstrate the potential of the synthesized membrane for removing TC and OFL from contaminated water.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Gaojie Han, Xiaoyu Zhao, Yuezhan Feng, Jianmin Ma, Keqing Zhou, Yongqian Shi, Chuntai Liu, Xiaolin Xie
Summary: In this study, hexagonal boron nitride was exfoliated and flame-retardant functionalized in one step via ball milling, leading to the development of highly flame-retardant and thermally conductive composite materials. The obtained BNNS were used as multifunctional additives in epoxy resin composites, showing significant improvements in flame retardancy and thermal conductivity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Jizhen Huang, E. Songfeng, Jiaoyang Li, Fengfeng Jia, Qin Ma, Li Hua, Zhaoqing Lu
Summary: Bulk boron nitride was mechanically exfoliated into nanosheets using a ball-milling method with viscous hydroxyethyl cellulose solution as a medium, resulting in good dispersion and stability of the BNNS. The HEC/BNNS films, with high mechanical strength and thermal conductivity, have the potential to be used as thermal interface materials.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Guoxun Sun, Xiaoning Sun
Summary: A simple and scalable strategy is developed to exfoliate h-BN into BNNSs by molten salt-assisted thermal treatment in air. Ultrathin BNNSs with large lateral sizes and low defect density are successfully obtained.
Article
Chemistry, Physical
Mu Xiao, Yalong Jiao, Bin Luo, Songcan Wang, Peng Chen, Miaoqiang Lyu, Aijun Du, Lianzhou Wang
Summary: Coupling graphitic carbon nitride (CN) with carbonaceous materials enhances photocatalytic performance by improving exciton dissociation and charge transfer. The enhanced light absorption from carbon has little contribution to H-2 evolution activity.
Article
Chemistry, Multidisciplinary
Rijia Lin, Yuqi Yao, Muhammad Yazid Bin Zulkifli, Xuemei Li, Shuai Gao, Wengang Huang, Simon Smart, Miaoqiang Lyu, Lianzhou Wang, Vicki Chen, Jingwei Hou
Summary: This study presents a simple, scalable mechanochemical technique for producing metal-organic framework coatings on various substrates. The mechanisms ensuring the stability of the coatings are revealed, and the coatings facilitate electrocatalysis application on conductive substrates.
Article
Engineering, Electrical & Electronic
Yuxian Yan, Luqiao Yin, Huazhang Guo, Liang Wang, Jianhua Zhang
Summary: A new kind of carbon dots based phosphor has been developed for white LED lighting, which shows good photoluminescence properties and thermal stability.
IEEE PHOTONICS JOURNAL
(2022)
Review
Chemistry, Applied
Shanshan Ding, Mengmeng Hao, Tongen Lin, Yang Bai, Lianzhou Wang
Summary: Lead halide perovskite quantum dots (PQDs) have emerged as promising light absorbers for photovoltaic applications due to their outstanding optoelectronic properties. However, the highly dynamic binding nature of surface ligands hinders the further improvement of PQD-based solar cells. This review provides a fundamental understanding of the role of surface ligands in PQDs and discusses recent advances in ligand engineering to enhance the efficiency and stability of perovskite QD solar cells (QDSCs).
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Gujia Zhang, Luhua Wang, Rongjian Sa, Chao Xu, Zhaohui Li, Lianzhou Wang
Summary: A N-doped Ti3C2Tx electrode with an interconnected porous structure was designed to improve active site accessibility and electrolyte interaction, leading to enhanced CDI performance. The interconnected porous feature enhances electrode material availability, while nitrogen doping further improves accessibility in addition to chemical and electrochemical properties.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Chemistry, Multidisciplinary
Jiakang You, Mu Xiao, Zhiliang Wang, Lianzhou Wang
Summary: Cocatalysts loading with non-noble metal compounds is an effective strategy for enhancing photocatalytic CO2 reduction. The choice of anions in these cocatalysts plays a significant role in influencing the reaction. These materials improve charge carrier separation, light absorption, CO2 adsorption, and serve as active sites for reduction reactions.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Zhengdong Wang, Tong Zhang, Jinkai Wang, Ganqiu Yang, Mengli Li, Guanglei Wu
Summary: In this study, a simple and environmentally friendly method was proposed to enhance the through-plane thermal conductivity of epoxy composites using a 3D boron nitride framework. The impact of filler sizes in the 3D-BN skeletons on thermal conductivity was also investigated. It was found that the epoxy composite with larger BN fillers exhibited higher through-plane thermal conductivity and maintained low dielectric constants and losses, making it suitable for microelectronic device applications.
Review
Chemistry, Multidisciplinary
Wenhuai Feng, Ying Tan, Meifang Yang, Yong Jiang, Bing-Xin Lei, Lianzhou Wang, Wu-Qiang Wu
Summary: Amines, featuring the combination of amino groups and other organic moieties, have shown great potential as additives or surface ligands for improving the performances of perovskite solar cells and perovskite-based light emitting diodes. By rational tailoring of their molecular structures, amine molecules exhibit multifunctionalities and salient advantages. This review unlocks the secrets of how a small amount of amine molecules incorporated in perovskite films can bring big benefits to these optoelectronic devices and discusses feasible rules for the design of amines with ideal molecular structures.
Article
Chemistry, Multidisciplinary
W. Zhao, F. Xie, M. Gan, L. Ma, Y. Zhang, X. Li, L. Wang, X. Hua
Summary: Efficient strategies for constructing durable and active Pt-based electrocatalysts for methanol oxidation reaction (MOR) are of great significance for the application of direct methanol fuel cells (DMFCs). This study reports a facile pyrolysis procedure to fabricate carbon layer wrapped PtFeCo alloy nanoparticles supported on nitrogen-doped carbon nanotubes (NCNT). The nitrogen-doped carbon support is highly graphitized, and the PtFeCo particles are firmly wrapped by the graphitized carbon, leading to improved durability and activity of the catalyst.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Environmental
Huihuang Chen, Chunqing Zhang, Li Sheng, Miaomiao Wang, Weng Fu, Shuai Gao, Zhirong Zhang, Shaoqing Chen, Rui Si, Lianzhou Wang, Bo Yang
Summary: A copper single-atom catalyst (Cu-N-C) is demonstrated to be active and selective for nitrate reduction to ammonia. By enhancing nitrite adsorption and restraining N-N coupling, this catalyst effectively inhibits the formation of toxic products, while achieving high yield rate and selectivity for nitrate reduction.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Gedeng Wan, Yongqiang Yang, Huaze Zhu, Chao Zhen, Xiaoxiang Xu, Lianzhou Wang, Gang Liu
Summary: This study demonstrates the fast migration and efficient spatial separation of photogenerated charges in photocatalytic materials by constructing a three-phase heterostructure of CdS/PbTiO3/TiO2, leading to improved efficiency in solar water splitting reactions.
SCIENCE CHINA-MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Bo Zhang, Eli Martel, Zhenyu Wang, Jinying Zhang, Thomas Szkopek
Summary: This study reports the optical transmission spectroscopy and photoconductivity measurements of exfoliated flakes of violet phosphorus. It is found that violet phosphorus shows high photoconductive responsivity and optical transmission properties that are in agreement with theoretical calculations. Additionally, it is observed that violet phosphorus is sensitive to oxidation and requires protection in an inert gas environment.
Article
Engineering, Environmental
Haijiao Lu, Zhiliang Wang, Lianzhou Wang
Summary: Developing new energy sources is crucial for meeting energy demands and reducing CO2 emissions. Converting CO2 into value-added products is a promising strategy, but is limited by low activity and selectivity. The article reviews the basics of PC and PEC CO(2)RRs and discusses the main strategies for achieving high CO2RR activity and selectivity for multicarbon products.
ACS ES&T ENGINEERING
(2022)
Article
Engineering, Environmental
Fengyan Shi, Mengna Ding, Haijian Tong, Yuping Yang, Junyang Zhang, Lianzhou Wang, Hexing Li, Yuning Huo
Summary: A new photoelectrocatalytic antibacterial system based on ZIF-67/ZnO@Co foil was developed, which captures bacteria using thorn-like ZnO nanorods and efficiently adsorbs leaked K+ ions using porous ZIF-67. The system achieves complete destruction of bacteria by decomposing their cell membranes and accelerating K+ leakage through visible-light photocatalytic activity. This system shows potential for future sterilization applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
P. Belmonte, J. M. Garcia-Vargas, J. F. Rodriguez, I. Garrido, M. T. Garcia, M. J. Ramos
Summary: In this study, four polythiourethane films with different types of polyols and isocyanates were synthesized, characterized, and foamed. The results showed that the type of isocyanate greatly influenced the crystallinity and stiffness of the polymers, while the type of polyol modified the FT-IR spectra and the decomposition curve of the material with temperature. Furthermore, the choice of isocyanate also affected the properties of the foams obtained from the polymeric material.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Xutao Zhu, Jianguo Yan, Shouchun Liu, Fengling Zhu
Summary: This study experimentally assessed the hydrodynamic characteristics of supercritical-pressure R134a in a horizontal circular tube. It was found that the hydrodynamic characteristic curve of R134a under supercritical pressure does not have a negative-slope region but a transition region. The transition region becomes more evident with increasing heat flux, while it weakens with increasing pressure and inlet temperature. Moreover, the onset of the transition region shifts in the direction of high mass flow rate with increasing heat flux.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Stefania Mottola, Iolanda De Marco
Summary: In this study, corticosteroids were micronized with cyclodextrin using Supercritical Assisted Atomization (SAA), resulting in spherical micrometric particles with improved dissolution time.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Honghai Liu, Yu Xie, Zhilan Li, Xiaokai Zhang
Summary: This study compared the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) at a temperature of 55 degrees C on the dewatering rate, moisture transfer and distribution, shrinkage, and stress characteristics of bamboo strips. The results showed that SCD had a faster dewatering rate and lower shrinkage compared to CKD, but was less effective in reducing drying stress in bamboo.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tahmasb Hatami, Ozan N. Ciftci
Summary: This study fills the gap in previous research by establishing a hierarchy of significance for factors affecting SFE profitability, providing a deeper understanding of how technical and economic factors impact profitability. The findings highlight that the SFE facility becomes profitable when the extractor capacity surpasses 42 L.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tingshan Guo, Chuang He, Zhiyuan Liang, Qinxin Zhao
Summary: The initial oxidation behavior of Fe10Cr and Fe20Cr alloys in supercritical H2O and supercritical CO2 with O2 has been investigated. The results show that O2 has the highest adsorption energy on FeCr alloys and reacts faster than H2O and CO2.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Vikash Chandra Roy, Jin-Seok Park, Ahmed Redwan Haque, Md Sadek Ali, Hee-Jeong Lee, Byung-Soo Chun
Summary: This research aimed to valorize brewery spent grain (BSG) using subcritical water hydrolysis (SWH) modified by six different natural deep eutectic solvents (DES) and determining their bipotentialities. The findings showed that BSG hydrolysates obtained through DES-induced SWH contained high levels of sugars, proteins, flavonoids, phenolic compounds, and essential amino acids. The hydrolysates also demonstrated antimicrobial activities, and the presence of bioactive compounds was confirmed through FT-IR analysis. This comprehensive profiling of bioactive compounds from BSG using DES-mediated SWH can contribute to the efficient valorization of BSG for industrial purposes.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Kailiang Zhang, Hanyu Wang, Tong Liu, Zhu Wang, Lvxing Wang, Ping Fan, Feng Chen, Mingqiang Zhong, Bozhen Wu, Shanqiu Liu, Jintao Yang
Summary: This study investigates the influence of foam cell structure on the electromagnetic interference shielding performance of conductive polymer composite foam. The results suggest that foamed composites exhibit improved EMI shielding performance, and bimodal cell foams have higher electric conductivity but lower EMI shielding compared to uniform cell foams.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Jaromir Valtr, Petr Roztocil, David Dasek, Radek Musalek, Frantisek Lukac, Jakub Klecka, Marek Janata, Mariana Arnoult-Ruzickova, Eva Mistova, Ludek Jelinek, Petr Sajdl, Jan Macak
Summary: This paper focuses on the design of an experimental facility for in-situ electrochemical testing at supercritical water conditions, including the design of the electrode system and surface insulation coating for electrode leads.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Richard Djimasbe, Mikhail A. Varfolomeev, Nailya M. Khasanova, Ameen A. Al-Muntaser, Rustam R. Davletshin, Muneer A. Suwaid, Gazinur Z. Mingazov
Summary: This study confirms the capability of supercritical water to generate active hydrogen that interacts with different fractions in unconventional feedstocks, leading to synthetic oil production during hydrothermal reactions. The findings suggest that a maximum yield of 16.78% can be achieved at a temperature of 380 oC and a reaction time of 1-12 hours.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)