1
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Su C, Sun M, Bian H, Fang G, Dai H. Dual regulation of thermal conductivity and mechanical performance of nano cellulose-based composite via mimicking plant cell wall structure. Int J Biol Macromol 2024; 278:134705. [PMID: 39214833 DOI: 10.1016/j.ijbiomac.2024.134705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 07/25/2024] [Accepted: 08/11/2024] [Indexed: 09/04/2024]
Abstract
Combining thermal conductive fillers and flexible polymers is an agile approach to fabricating composites with heat-conducting performance. However, the thermal conductivity of the composites is hard to reach an equal level to the functional fillers. The mainspring is that the thermally conductive pathways within the composite could not be well-constructed due to the air-induced interface thermal resistance. Herein, inspired by the plant cell wall structure, polyvinyl alcohol (PVA) with abundant hydroxyl groups was adopted as a binder for boosting the thermally conductive pathways construction between cellulose nanofiber (CNF) and alkalized hexagonal boron nitride (BN-OH), also for strengthening the mechanical performance of the composite. The results showed that the tensile strength and through-plane thermal conductivity of the composite were high up to 91.0 MPa and 2.2 W m-1 K-1 at 40 wt% PVA content, exhibiting 121 % and 450 % enhancements compared to pure CNF film (41.2 MPa and 0.4 W m-1 K-1). Moreover, the composite also presented high thermal stability (decomposition temperature of onset was 218 °C) and good hydrophobicity properties. Overall, this study innovatively proposes an idea for enhancing the thermal conductivity and improving the mechanical properties of the composite, which is indispensable for developing thermal management materials for next-generation electronics.
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Affiliation(s)
- Chen Su
- Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China; Institute of Chemical Industry and Forest Products, Chinese Academy of Forestry, Nanjing 210042, PR China
| | - Mengya Sun
- Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Huiyang Bian
- Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Guigan Fang
- Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China; Institute of Chemical Industry and Forest Products, Chinese Academy of Forestry, Nanjing 210042, PR China
| | - Hongqi Dai
- Jiangsu Co-innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China.
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2
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Zhang Q, Zhang G, Huang Y, He S, Li Y, Jin L, Han J. Surface-Modified LDH Nanosheets with High Dispersibility in Oil for Friction and Wear Reduction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5316-5325. [PMID: 38227431 DOI: 10.1021/acsami.3c17322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Surface and interfacial engineering of nanomaterials is essential for improving dispersion stability in liquids. In this study, we report that oleic acid (OA)- and stearic acid (SA)-functionalized layered double hydroxide (LDH) nanosheets as lubricant additives can achieve high dispersion and reduce friction and wear. LDH is a typical layered structure, and OA and SA are long-chain organic molecules that are not only compatible with base oils but also act as friction-reducing agents. The OA and SA molecules were branched onto ZnMgAl LDH nanosheets using dehydration condensation between the exposed OH groups on the surface of LDH and the COOH groups on the OA and SA molecules. Compared with that of the pristine ZnMgAl LDH, the dispersion of OA-ZnMgAl LDH and SA-ZnMgAl LDH was significantly improved. The surface-modified LDH exhibited superior tribological properties and great stability due to the synergistic lubrication effect between OA, SA, and LDH. Even at an ultralow concentration (0.15 wt %), the coefficient of friction and wear volume were reduced by ∼65 and ∼99%, respectively, compared to those of the base oil. Due to the green and simple synthesis method and excellent tribological properties, surface-functionalized LDH has enormous possibilities for future industrial applications.
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Affiliation(s)
- Qiang Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, Zhejiang Province, China
| | - Guiju Zhang
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Yongwang Huang
- Tianjin Nisseki Lubricants & Grease Co., Ltd., Binhai New Area, Tianjin 300480, China
| | - Shan He
- Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China
| | - Yong Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lan Jin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jingbin Han
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, Zhejiang Province, China
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Martínez-Jiménez C, Chow A, Smith McWilliams AD, Martí AA. Hexagonal boron nitride exfoliation and dispersion. NANOSCALE 2023; 15:16836-16873. [PMID: 37850487 DOI: 10.1039/d3nr03941b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Research on hexagonal boron nitride (hBN) 2-dimensional nanostructures has gained traction due to their unique chemical, thermal, and electronic properties. However, to make use of these exceptional properties and fabricate macroscopic materials, hBN often needs to be exfoliated and dispersed in a solvent. In this review, we provide an overview of the many different methods that have been used for dispersing hBN. The approaches that will be covered in this review include solvents, covalent functionalization, acids and bases, surfactants and polymers, biomolecules, intercalating agents, and thermal expansion. The properties of the exfoliated sheets obtained and the dispersions are discussed, and an overview of the work in the field throughout the years is provided.
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Affiliation(s)
| | - Alina Chow
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.
| | | | - Angel A Martí
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX, 77005, USA
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
- Smalley-Curl Institute for Nanoscale Science and Technology, Rice University, Houston, TX, 77005, USA
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Kang M, Kim J, Lim H, Ko J, Kim HS, Joo Y, Moon SY, Jang SG, Lee E, Ahn S. Eco-Friendly Dispersant-Free Purification Method of Boron Nitride Nanotubes through Controlling Surface Tension and Steric Repulsion with Solvents. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2593. [PMID: 37764622 PMCID: PMC10537017 DOI: 10.3390/nano13182593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Boron nitride nanotubes (BNNTs) were purified without the use of a dispersant by controlling the surface tension and steric repulsion of solvent molecules. This method effectively enhanced the difference in solubilities of impurities and BNNTs. The purification process involved optimizing the alkyl-chains of alcohol solvents and adjusting the concentration of alcohol solvent in water to regulate surface tension and steric repulsion. Among the solvents tested, a 70 wt% t-butylalcohol in water mixture exhibited the highest selective isolation of BNNTs from impurities based on differences in solubilities. This favorable outcome was attributed to the surface tension matching with BNNTs, steric repulsion from bulky alkyl chain structures, and differences in interfacial energy between BNNT-liquid and impurity-liquid interfaces. Through this optimized purification process, impurities were removed to an extent of up to 93.3%. Additionally, the purified BNNTs exhibited a distinct liquid crystal phase, which was not observed in the unpurified BNNTs.
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Affiliation(s)
- Minsung Kang
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Jungmo Kim
- Nano Hybrid Technology Research Center, Korea Electrotechnology Research Institute (KERI), Changwon-si 51543, Republic of Korea
| | - Hongjin Lim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
| | - Jaehyoung Ko
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
| | - Hong-Sik Kim
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
| | - Yongho Joo
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
| | - Se Youn Moon
- Department of Quantum System Engineering, Jeonbuk National University, Jeonju-si 54896, Republic of Korea
| | - Se Gyu Jang
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Seokhoon Ahn
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk 55324, Republic of Korea; (M.K.)
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Zhang Z, Zuo F, Cai T, Gai X, Wan L, Lin H, Wang B, Zhang H. Modification of insulating oils and oil-based titanium dioxide nanofluids for transformers: a review. Phys Chem Chem Phys 2023; 25:22565-22582. [PMID: 37608735 DOI: 10.1039/d3cp02135a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
In the last decade, oil-based titanium dioxide nanofluids (TiO2 NFs) have gained immense interest due to their unique insulating properties and excellent thermal performance, which endow them with the potential for application in the field of modified insulating oils. A timely comparison, analysis and summary of recent advances in the preparation, characterization, and properties of different oil-based TiO2 NFs for oil-immersed power transformers will contribute to provide a useful reference for the subsequent development of such materials. Preparation methods are reviewed along with their merits and demerits. Characterization techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), optical microscopy (OM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS), Fourier transform infrared (FTIR) spectroscopy, thermally stimulated current (TSC), pulse electroacoustic technique (PEA), finite element analysis (FEA), fluorescence spectroscopy, Raman spectroscopy and zeta potential analysis are all applied to determine the crystal structure, particle size, surface function, surface charge and stability. Stabilization mechanisms are also discussed in detail. Some critical properties of oil-based TiO2 NFs under the application of different influencing factors such as base oils, crystal structure, size of nanoparticles, surface modifiers, mixing percentage, and aging environment are highlighted. Finally, the existing challenges and perspectives are presented for future research.
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Affiliation(s)
- Zilong Zhang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Fangmin Zuo
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Tianzi Cai
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Xingyu Gai
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Li Wan
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Haidan Lin
- Electric Power Research Institute, State Grid Jilin Electric Power Co., Ltd., Changchun 130012, China
| | - Bolin Wang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
| | - Haifeng Zhang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
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Effect of g-C3N4 Morphology on its Performance as Lubricating Additive for Grease. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Mou Z, Yang Q, Peng J, Yan R, Zhao B, Ge Y, Xiao D. One-step green synthesis of oil-dispersible carbonized polymer dots as eco-friendly lubricant additives with superior dispersibility, lubricity, and durability. J Colloid Interface Sci 2022; 623:762-774. [DOI: 10.1016/j.jcis.2022.05.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/01/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022]
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Hafeez A, Karim ZA, Ismail AF, Jamil A, Mohammad Said KA, Ali A. Tuneable molecular selective boron nitride nanosheet ultrafiltration lamellar membrane for dye exclusion to remediate the environment. CHEMOSPHERE 2022; 303:135066. [PMID: 35623426 DOI: 10.1016/j.chemosphere.2022.135066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/30/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Smart tuning of the membrane's porous nanostructures offers an effective strategy for creating state-of-the-art, high-performance separation membranes. In aqueous solution, polyethylene glycol (PEG) grafted boron nitride PEGX-g-(f-BN) nanosheets exhibit high permeance and excellent molecular sieving. The molecular selectivity of the PEGX-g-(f-BN) lamellar membrane is controlled by the nanopores, which can be tuned by modulating the interplanar spacing between the nanosheets. Herein, the interplanar spacing of h-BN nanosheets is enhanced in the range of 0.334-0.348 nm through grafting different molecular weight PEG. Moreover, the grafted PEG instigates a synergistic effect on the nanosheets in two ways. Firstly, through PEG intercalation, the interlayer spacing of the (002) plane could be adjusted without significant deterioration to the hexagonal crystallographic structure. Secondly, intercalated PEG in BN nanosheets reflects in terms of improved h-BN wettability through transformation to hydrophilic surface characteristics (small contact angle of 36-39°). The fabricated PEGX-g-(f-BN) lamellar membrane acquires stable and interconnected nanopores and nanochannels with an average pore diameter of 1.36-2.19 nm. Permeance-exclusion trade-off manipulation through methodical approaches of PEGX-g-(f-BN) decoration thickness and interplanar spacing is exploited to build a better understanding of water transport behavior. PEGX-g-(f-BN) lamellar membranes show unprecedented permeance of ∼1253 L m-2 h-1 bar-1 with a steady methyl blue (MB) exclusion of 98.9% even in different pH conditions.
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Affiliation(s)
- Asif Hafeez
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering (SCEE), Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia; Department of Materials, National Textile University, Sheikhupura Road, Faisalabad, 37610, Pakistan
| | - Zulhairun Abdul Karim
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering (SCEE), Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering (SCEE), Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia; School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia.
| | - Asif Jamil
- Department of Chemical, Polymer and Composite Materials Engineering, University of Engineering and Technology (New Campus), 54890, Lahore, Pakistan
| | - Khairul Anwar Mohammad Said
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering (SCEE), Universiti Teknologi Malaysia, 81310, UTM, Skudai, Johor, Malaysia; Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, 94300, Kota Samarahan, Malaysia
| | - Abulhassan Ali
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia
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9
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Bai C, Yang Z, Zhang J, Zhang B, Yu Y, Zhang J. Friction Behavior and Structural Evolution of Hexagonal Boron Nitride: A Relation to Environmental Molecules Containing -OH Functional Group. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19043-19055. [PMID: 35416641 DOI: 10.1021/acsami.2c02450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sliding contact experiments and first-principles calculations were performed to elucidate the roles of environmental molecules containing -OH functional groups on the friction behavior and structural evolution of hexagonal boron nitride (h-BN). A significant decrease in the friction coefficient (COF) is established by the physisorption and dissociative adsorption of molecules containing -OH functional groups on h-BN, compared with that in a H2 or N2 atmosphere. A key finding is the existence of two friction mechanisms to reconstruct the sliding interface for h-BN crystallites in humid air and carbon contaminant (CH3OH and C2H5OH) atmospheres, which is verified by the friction behavior and morphologies of the wear track. There is a running-in period in the friction process to induce the formation of defects in h-BN in humid air, which facilitates dissociative adsorption of water molecules on h-BN. The formation of nanostructured water at defect sites will promote lamellar slip of h-BN crystal materials for friction reduction. In carbon contaminant environments, both molecules exhibit strong adsorption on the h-BN surface regardless of the presence of defects, thereby weakening the structural damage rate and enhancing the bearing capacity. C2H5OH molecules are more likely to dissociate and bind onto defect sites, endowing h-BN with high in-plane stress to form a coiled structure. h-BN in the annular or tubular form would exhibit a self-protective effect, facilitate incommensurate contact, and reduce the contact area to enhance lubrication. Our work may establish the fundamental basis for future applications of h-BN in new energy vehicles.
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Affiliation(s)
- Changning Bai
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zaixiu Yang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jing Zhang
- International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Bin Zhang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yuanlie Yu
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junyan Zhang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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10
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Li S, Liu R, Han X, Ge C, Zhang X. Diethyl α-aminophosphonate containing lubricating additives synthesized from (3-aminophenyl)boronic acid pinacol ester. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Kumari S, Chouhan A, Sharma OP, Tawfik SA, Tran K, Spencer MJS, Bhargava SK, Walia S, Ray A, Khatri OP. Surface Functionalization of WS 2 Nanosheets with Alkyl Chains for Enhancement of Dispersion Stability and Tribological Properties. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1334-1346. [PMID: 34941265 DOI: 10.1021/acsami.1c17162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tungsten disulfide (WS2) exhibits intriguing tribological properties and has been explored as an excellent lubricious material in thin-film and solid lubricants. However, the poor dispersibility of WS2 has been a major challenge for its utilization in liquid lubricant applications. Herein, a top-down integrated approach is presented to synthesize oxygenated WS2 (WS2-O) nanosheets via strong acid-mediated oxidation and ultrasound-assisted exfoliation. The ultrathin sheets of WS2-O, comprising 4-7 molecular lamellae, exhibit oxygen/hydroxyl functionalities. The organosilanes having variable surface-active leaving groups (chloro and ethoxy) are covalently grafted, targeting the hydroxyl/oxygen functionalities on the surface of WS2-O nanosheets. The grafting of organosilanes is governed by the reactivity of chloro and ethoxy leaving groups. The DFT calculations further support the covalent interaction between the WS2-O nanosheets and organosilanes. The alkyl chain-functionalized WS2-O nanosheets displayed excellent dispersibility in mineral lube base oil. A minute dose of chemically functionalized-WS2 (0.2 mg.mL-1) notably enhanced the tribological properties of mineral lube oil by reducing the friction coefficient (52%) and wear volume (79%) for a steel tribopair. Raman analysis of worn surfaces revealed WS2-derived lubricious thin film formation. The improved tribological properties are attributed to ultralow thickness, stable dispersion, and low shear strength of chemically functionalized WS2 nanosheets, along with protective thin film formation over the contact interfaces of a steel tribopair. The present work opens a new avenue toward exploiting low-dimensional nanosheets for minimizing energy losses due to high friction.
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Affiliation(s)
- Sangita Kumari
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Ajay Chouhan
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Om P Sharma
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
| | - Sherif Abdulkader Tawfik
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Kevin Tran
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Michelle J S Spencer
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Applied Sciences, RMIT University, Melbourne, VIC 3001, Australia
| | - Sumeet Walia
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Anjan Ray
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Om P Khatri
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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12
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Yu Y, Cui M, Zheng W, Zhao H. Eco-friendly functionalization of hexagonal boron nitride nanosheets with carbon dots towards reinforcement of the protective performance of water-borne epoxy coatings. NEW J CHEM 2022. [DOI: 10.1039/d2nj00310d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A h-BN@CDs/WEP coating shows superior corrosion protection under intact or damaged status owing to the improved barrier properties and interfacial bonding of the coating.
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Affiliation(s)
- Yue Yu
- Key Laboratory of Impact and Safety Engineering, Ministry of Education, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Mingjun Cui
- Key Laboratory of Impact and Safety Engineering, Ministry of Education, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China
| | - Wenru Zheng
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Haichao Zhao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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13
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Wang S, Liang Z, Liu L, Cao Y, Cheng Y, Chen D. Preparation of chemically functionalized graphene with excellent dispersibility and tribological properties as lubricant additives by microwave-assisted ball milling. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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An L, Gu R, Zhong B, Wang J, Zhang J, Yu Y. Quasi-Isotropically Thermal Conductive, Highly Transparent, Insulating and Super-Flexible Polymer Films Achieved by Cross Linked 2D Hexagonal Boron Nitride Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101409. [PMID: 34636142 DOI: 10.1002/smll.202101409] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Polymer-based thermal management materials (TIMs) show great potentials as TIMs due to their excellent properties, such as high insulation, easy processing, and good flexibility. However, the limited thermal conductivity seriously hinders their practical applications in high heat generation devices. Herein, highly transparent, insulating, and super-flexible cellulose reinforced polyvinyl alcohol/nylon12 modified hexagonal boron nitride nanosheet (PVA/(CNC/PA-BNNS)) films with quasi-isotropic thermal conductivity are successfully fabricated through a vacuum filtration and subsequent self-assembly process. A special structure composed of horizontal stacked hexagonal boron nitride nanosheets (h-BNNSs) connected by their warping edges in longitudinal direction, which is strengthened by cellulose nanocrystals, is formed in PVA matrix during self-assembly process. This special structure makes the PVA/(CNC/PA-BNNS) films show excellent thermal conductivity with an in-plane thermal conductivity of 14.21 W m-1 K-1 and a through-plane thermal conductivity of 7.29 W m-1 K-1 . Additionally, the thermal conductive anisotropic constants of the as-obtained PVA/(CNC/PA-BNNS) films are in the range of 1 to 4 when the h-BNNS contents change from 0 to 60 wt%, exhibiting quasi-isotropic thermal conductivity. More importantly, the PVA/(CNC/PA-BNNS) films exhibit excellent transparency, super flexibility, outstanding mechanical strength, and electric insulation, making them very promising as TIMs for highly efficient heat dissipation of diverse electronic devices.
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Affiliation(s)
- Lulu An
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Rong Gu
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bo Zhong
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai, 264209, P. R. China
| | - Jilin Wang
- School of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China
| | - Junyan Zhang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuanlie Yu
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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Liñeira del Río JM, López ER, García F, Fernández J. Tribological synergies among chemical-modified graphene oxide nanomaterials and a phosphonium ionic liquid as additives of a biolubricant. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116885] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Liñeira del Río JM, López ER, Fernández J. Tribological properties of graphene nanoplatelets or boron nitride nanoparticles as additives of a polyalphaolefin base oil. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115911] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang FF, Ding H, Tan G, Liu Z, Cheng ZL. Study on dispersibility and tribological behaviors of 2D ZnBDC MOFs as additive in oil. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1942897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Fei-Fei Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Haiyang Ding
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Guang Tan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Zan Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Zhi-Lin Cheng
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
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Qi S, Wei X, Chen L, Geng Z, Luo J, Lu Z, Zhang G. 3D graphene/hexagonal boron nitride composite nanomaterials synergistically reduce the friction and wear of Steel‐DLC contacts. NANO SELECT 2021. [DOI: 10.1002/nano.202000233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Shunshun Qi
- State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
- School of Materials Science and Engineering Lanzhou Jiaotong University Lanzhou China
| | - Xubing Wei
- State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China
| | - Lin Chen
- State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China
| | - Zhongrong Geng
- School of Materials Science and Engineering Lanzhou Jiaotong University Lanzhou China
| | - Jinqiong Luo
- Guangxi Liugong Machinery Co., Ltd. Liuzhou China
| | - Zhibin Lu
- State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China
| | - Guangan Zhang
- State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China
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20
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Tribological performances of hexagonal boron nitride nanosheets via surface modification with silane coupling agent. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04390-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
AbstractHexagonal boron nitride (h-BN) is a promising lubricant additive for decreasing wear and friction. However, the poor dispersion stability and bulky size of h-BN restricted its lubrication application. In this paper, bulk h-BN was exfoliated into h-BN nanosheets (h-BNNSs), and then the self-made h-BNNSs were chemically modified with silane coupling agent via a facile and scalable reaction method. The morphology and structure of surface-functionalized h-BNNSs (m-BNNSs) were certified using a series of characterizations. Results revealed that h-BNNSs could be chemically well capped by surface modifier and the lipophilic groups were covalently attached to h-BNNSs surfaces. The m-BNNSs composite possessed long-term dispersion in liquid paraffin (LP). At the optimal adding content of 0.6 wt%, coefficient of friction and wear volume of m-BNNSs composite were decreased by about 31.9% and 53.8% compared with those of LP, respectively. Therefore, m-BNNSs composite as a lubricating oil additive has high research value and good prospects of lubrication applications.
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Zhang HX, Seo DH, Lee DE, Yoon KB. Fabrication of highly thermal conductive PA6/hBN composites via in-situ polymerization process. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-020-02378-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Wang FF, Ding H, Tan G, Liu Z, Cheng ZL. Interface synthesis for controllable construction of 2D Zn(Bim)(OAc) nanosheets via oil/water system and their application in oil. CrystEngComm 2021. [DOI: 10.1039/d0ce01624a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fabrication of 2D Zn(Bim)(OAc) MOFs-structured nanosheets based on the oil/water interface.
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Affiliation(s)
- Fei-Fei Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Haiyang Ding
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Guang Tan
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Zan Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Zhi-Lin Cheng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
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Kumari S, Gusain R, Kumar A, Manwar N, Jain SL, Khatri OP. Direct growth of nanostructural MoS2 over the h-BN nanoplatelets: An efficient heterostructure for visible light photoreduction of CO2 to methanol. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101345] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Samanta S, Sahoo RR. Covalently Linked Hexagonal Boron Nitride-Graphene Oxide Nanocomposites as High-Performance Oil-Dispersible Lubricant Additives. ACS APPLIED NANO MATERIALS 2020; 3:10941-10953. [DOI: 10.1021/acsanm.0c02193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
Affiliation(s)
- Suprakash Samanta
- Environmental Engineering Division, CSIR−Central Mechanical Engineering Research Institute, Durgapur 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rashmi R. Sahoo
- Environmental Engineering Division, CSIR−Central Mechanical Engineering Research Institute, Durgapur 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Chouhan A, Mungse HP, Khatri OP. Surface chemistry of graphene and graphene oxide: A versatile route for their dispersion and tribological applications. Adv Colloid Interface Sci 2020; 283:102215. [PMID: 32771691 DOI: 10.1016/j.cis.2020.102215] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/15/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022]
Abstract
Graphene, the most promising material of the decade, has attracted immense interest in a diversified range of applications. The weak van der Waals interaction between adjacent atomic-thick lamellae, excellent mechanical strength, remarkable thermal conductivity, and high surface area, make graphene a potential candidate for tribological applications. However, the use of graphene as an additive to liquid lubricants has been a major challenge because of poor dispersibility. Herein, a thorough review is presented on preparation, structural models, chemical functionalization, and dispersibility of graphene, graphene oxide, chemically-functionalized graphene, and graphene-derived nanocomposites. The graphene-based materials as additives to water and lubricating oils improved the lubrication properties by reducing the friction, protecting the contact interfaces against the wear, dissipating the heat from tribo-interfaces, and mitigating the corrosion by forming the protecting thin film. The dispersion stability, structural features, and dosage of graphene-based dispersoids, along with contact geometry, play important roles and govern the tribological properties. The chemistry of lubricated surfaces is critically reviewed by emphasizing the graphene-based thin film formation under the tribo-stress, which minimizes the wear. The comprehensive review provides variable approaches for the development of high-performance lubricant systems and accentuates the lubrication mechanisms by highlighting the role of graphene-based materials for enhancement of tribological properties.
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Wang Q, Hou T, Wang W, Zhang G, Gao Y, Wang K. Tribological properties of black phosphorus nanosheets as oil-based lubricant additives for titanium alloy-steel contacts. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200530. [PMID: 33047021 PMCID: PMC7540757 DOI: 10.1098/rsos.200530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
The black phosphorus (BP) powders were prepared by high-energy ball milling with red phosphorus as the raw material, and then the BP nanosheets were obtained by liquid-phase exfoliation. The tribological properties of the BP nanosheets as oil-based lubricant additives were investigated by the ball-on-disc tribometer. Results show that compared with the base oil of liquid paraffin (LP), the coefficient of friction and wear rate of the BP nanosheets as the additives in liquid paraffin (BP-LP) are lower for the same loads. BP-LP lubricants could significantly improve the load-bearing capacity of the base oil for titanium alloy-steel contacts and show excellent friction-reducing and anti-wear properties. The surface morphologies and elemental compositions of the friction pairs were further analysed using an optional microscope, scanning electron microscope and X-ray photoelectron spectroscopy. The lubrication mechanism of BP-LP can be attributed to the synergistic effects between lamellar adsorption and interlayer shear of BP nanosheets.
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Affiliation(s)
- Qingjuan Wang
- School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
| | - Tingli Hou
- School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
| | - Wei Wang
- School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
| | - Guoliang Zhang
- School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222, People's Republic of China
- Guangdong Provincial Key Lab of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Yuan Gao
- School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
| | - Kuaishe Wang
- School of Metallurgy Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China
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Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4030116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ever-increasing significance of composite materials with high thermal conductivity, low thermal expansion coefficient and high optical bandgap over the last decade, have proved their indispensable roles in a wide range of applications. Hexagonal boron nitride (h-BN), a layered material having a high thermal conductivity along the planes and the band gap of 5.9 eV, has always been a promising candidate to provide superior heat transfer with minimal phonon scattering through the system. Hence, extensive researches have been devoted to improving the thermal conductivity of different matrices by using h-BN fillers. Apart from that, lubrication property of h-BN has also been extensively researched, demonstrating the effectivity of this layered structure in reduction of friction coefficient, increasing wear resistance and cost-effectivity of the process. Herein, an in-depth discussion of thermal and tribological properties of the reinforced composite by h-BN will be provided, focusing on the recent progress and future trends.
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28
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Mussel inspired interfacial modification of boron nitride/carbon nanotubes hybrid fillers for epoxy composites with improved thermal conductivity and electrical insulation properties. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02189-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Ma Z, Liu Z, Cheng Z. Scalable exfoliation for few-layered hexagonal boron nitride nanosheets (BNNSs) by microwave-assisted expansion and liquid nitrogen intercalation. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Liñeira del Río JM, López ER, González Gómez M, Yáñez Vilar S, Piñeiro Y, Rivas J, Gonçalves DEP, Seabra JHO, Fernández J. Tribological Behavior of Nanolubricants Based on Coated Magnetic Nanoparticles and Trimethylolpropane Trioleate Base Oil. NANOMATERIALS 2020; 10:nano10040683. [PMID: 32260522 PMCID: PMC7221784 DOI: 10.3390/nano10040683] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/22/2020] [Accepted: 03/27/2020] [Indexed: 12/03/2022]
Abstract
The main task of this work is to study the tribological performance of nanolubricants formed by trimethylolpropane trioleate (TMPTO) base oil with magnetic nanoparticles coated with oleic acid: Fe3O4 of two sizes 6.3 nm and 10 nm, and Nd alloy compound of 19 nm. Coated nanoparticles (NPs) were synthesized via chemical co-precipitation or thermal decomposition by adsorption with oleic acid in the same step. Three nanodispersions of TMPTO of 0.015 wt% of each NP were prepared, which were stable for at least 11 months. Two different types of tribological tests were carried out: pure sliding conditions and rolling conditions (5% slide to roll ratio). With the aim of analyzing the wear by means of the wear scar diameter (WSD), the wear track depth and the volume of the wear track produced after the first type of the tribological tests, a 3D optical profiler was used. The best tribological performance was found for the Nd alloy compound nanodispersion, with reductions of 29% and 67% in friction and WSD, respectively, in comparison with TMPTO. On the other hand, rolling conditions tests were utilized to study friction and film thickness of nanolubricants, determining that Fe3O4 (6.3 nm) nanolubricant reduces friction in comparison to TMPTO.
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Affiliation(s)
- José M. Liñeira del Río
- Laboratory of Thermophysical Properties, Nafomat Group, Department of Applied Physics, Faculty of Physics, Universidade of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (J.M.L.d.R.); (E.R.L.)
| | - Enriqueta R. López
- Laboratory of Thermophysical Properties, Nafomat Group, Department of Applied Physics, Faculty of Physics, Universidade of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (J.M.L.d.R.); (E.R.L.)
| | - Manuel González Gómez
- Applied Physics Department, NANOMAG Laboratory, Faculty of Physics, Universidade de Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.G.G.); (S.Y.V.); (Y.P.); (J.R.)
| | - Susana Yáñez Vilar
- Applied Physics Department, NANOMAG Laboratory, Faculty of Physics, Universidade de Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.G.G.); (S.Y.V.); (Y.P.); (J.R.)
| | - Yolanda Piñeiro
- Applied Physics Department, NANOMAG Laboratory, Faculty of Physics, Universidade de Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.G.G.); (S.Y.V.); (Y.P.); (J.R.)
| | - José Rivas
- Applied Physics Department, NANOMAG Laboratory, Faculty of Physics, Universidade de Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.G.G.); (S.Y.V.); (Y.P.); (J.R.)
| | - David E. P. Gonçalves
- Institute for Science and Innovation in Mechanical Engineering and Industrial Engineering (INEGI), Universidade do Porto, Dr. Roberto Frias St., 4200-465 Porto, Portugal;
| | - Jorge H. O. Seabra
- Faculty of Engineering of the University of Porto (FEUP), Dr. Roberto Frias St., 4200-465 Porto, Portugal;
| | - Josefa Fernández
- Laboratory of Thermophysical Properties, Nafomat Group, Department of Applied Physics, Faculty of Physics, Universidade of Santiago de Compostela, 15782 Santiago de Compostela, Spain; (J.M.L.d.R.); (E.R.L.)
- Correspondence:
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Parthiban V, Sahu AK. Performance enhancement of direct methanol fuel cells using a methanol barrier boron nitride–Nafion hybrid membrane. NEW J CHEM 2020. [DOI: 10.1039/d0nj00433b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Sulfonated hexagonal boron nitride is explored as a potential filler to prepare Nafion hybrid membranes for direct methanol fuel cell (DMFC) applications.
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Affiliation(s)
- V. Parthiban
- CSIR-Central Electrochemical Research Institute-Madras Unit
- CSIR Madras Complex
- Taramani
- Chennai 600113
- India
| | - A. K. Sahu
- CSIR-Central Electrochemical Research Institute-Madras Unit
- CSIR Madras Complex
- Taramani
- Chennai 600113
- India
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Barai HR, Rahman MM, Rahim A, Joo SW. α-MnO2 nanorod/boron nitride nanoplatelet composites for high-performance nanoscale dielectric pseudocapacitor applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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33
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Kong S, Seo H, Shin H, Baik JH, Oh J, Kim YO, Lee JC. Improvement in mechanical and thermal properties of polypropylene nanocomposites using an extremely small amount of alkyl chain-grafted hexagonal boron nitride nanosheets. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121714] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen C, Guo K, Zhu Y, Wang F, Zhang W, Qi H. Construction of Layered B 3N 3-Doped Graphene Sheets from an Acetylenic Compound Containing B 3N 3 by a Semisynthetic Strategy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33245-33253. [PMID: 31429542 DOI: 10.1021/acsami.9b10582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The structural modification of graphene at the atomic level is crucial for electrochemical applications. Doping heteroatoms to modify the structure of graphene has widely been adopted. However, the construction and controllable doping of heteroatom-doped graphene remains a challenge. Herein, a novel semisynthetic method is developed to synthesize a borazine (B3N3)-containing acetylenic compound as a precursor, and a series of B3N3-doped few-layered graphene nanosheets are prepared after annealing at different temperatures. To form graphene sheets, the in situ-forming MgBrCl salt is used as an intercalation agent to enlarge the mutual distance between molecules, which can inhibit the unwanted cross-linking reaction. Nanosheets with different thicknesses of 2.5, 3.5, and 4.1 nm can be obtained at annealing temperatures of 1500, 1200, and 1000 °C, respectively. The results demonstrate that the B and N atoms are co-doped in the graphene by the structure of B3N3, and the doping site can be changed with different annealing temperatures. The optical gap of graphene can be successfully opened by doping with B3N3, and the resultant material can be potentially utilized as a catalyst and semiconductor material. Furthermore, this new semisynthetic strategy will offer the opportunity to fabricate more carbon materials via controllable heteroatom doping.
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Affiliation(s)
- Chen Chen
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
| | - Kangkang Guo
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
- Shanghai Electric Tools Research Institute , Shanghai 200233 , China
| | - Yaping Zhu
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
| | - Fan Wang
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
| | - Weian Zhang
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
| | - Huimin Qi
- Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, Shanghai Key Laboratory of Functional Materials Chemistry, School of Materials Science and Engineering , East China University of Science & Technology , Shanghai 200237 , China
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Tribological and Thermophysical Properties of Environmentally-Friendly Lubricants Based on Trimethylolpropane Trioleate with Hexagonal Boron Nitride Nanoparticles as an Additive. COATINGS 2019. [DOI: 10.3390/coatings9080509] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dispersions based on hexagonal boron nitride, h-BN, nanoparticles, at 0.50, 0.75 and 1.0 wt.% mass concentrations, in an ester base oil composed mainly of trimethylolpropane trioleate, were investigated as potential nanolubricants. The stability of the dispersions was assessed to determine the reliability of the tribological, thermophysical and rheological measurements. Density and viscosity were measured from 278.15 to 373.15 K, while rheological behavior was analyzed at shear rates from 1 to 1000 s−1 at 283.15 K. Newtonian behavior was exhibited by all nanolubricants at the explored conditions, with the exception of the highest concentration at the lowest shear rates, where possible non-Newtonian behavior was observed. Tribological tests were performed under a normal load of 2.5 N. Wear was evaluated by means of a 3D profiler, scanning electron microscopy and confocal Raman microscopy. The best tribological performance was achieved by the 0.75 wt.% nanolubricant, with reductions of 25% in the friction coefficient, 9% in the scar width, 14% in the scar depth, and 22% of the transversal area, all with respect to the neat oil. It was observed that physical protective tribofilms are created between rubbing surfaces.
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Effect of Triblock Copolymer on Carbon-Based Boron Nitride Whiskers for Efficient CO 2 Adsorption. Polymers (Basel) 2019; 11:polym11050913. [PMID: 31117248 PMCID: PMC6572571 DOI: 10.3390/polym11050913] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/16/2019] [Accepted: 05/19/2019] [Indexed: 02/02/2023] Open
Abstract
Herein, we investigated novel carbon-containing P123 copolymer-activated boron nitride whiskers (P123-CBNW) fabricated via a structure directing approach followed by a single-step heat treatment under N2. The resulting materials were found to be highly micro- and mesoporous. The influence of the activating agent (P123 copolymer) on the CO2 adsorption efficiency was determined. The prepared samples possessed high specific surface areas (594–1732 m2/g) and micropore volumes (0.258–0.672 cm3/g). The maximum CO2 uptakes of the prepared adsorbents were in the range 136–308 mg/g (3.09–7.01 mmol/g) at 273 K and 1 bar and 97–114 mg/g (2.22–4.62 mmol/g) in the following order: CBNW < P123-CBNW3 < P123-CBNW2 < P123-CBNW1 < P123-CBNW0.5. The isosteric heat of adsorption values (∆Qst) were found to be 33.7–43.7 kJ/mol, demonstrating the physisorption nature of the CO2 adsorption. Extensive analysis revealed that the presence of carbon, the high specific surface area, the high microporosity, and the chemical structural defects within the adsorbents are responsible for raising the CO2 adsorption ability and the selectivity over N2 gas. The fabricated adsorbents show excellent regeneration ability after several repeated adsorption cycles, making the prepared adsorbents promising candidates for gas storage applications.
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Harrison H, Lamb JT, Nowlin KS, Guenthner AJ, Ghiassi KB, Kelkar AD, Alston JR. Quantification of hexagonal boron nitride impurities in boron nitride nanotubes via FTIR spectroscopy. NANOSCALE ADVANCES 2019; 1:1693-1701. [PMID: 36134222 PMCID: PMC9419701 DOI: 10.1039/c8na00251g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 02/26/2019] [Indexed: 05/09/2023]
Abstract
Preparation of high-quality boron nitride nanotubes (BNNTs) from commercially available stock is critical for eventual industry adoption and to perform comprehensive experimental studies of BNNTs. Separation of hexagonal boron nitride (h-BN) and BNNTs is a significant challenge, and equally so, quantification of h-BN content in mixed samples is a major challenge due to their nearly identical properties. This work introduces a simple method of quantifying h-BN content in BNNTs based on FTIR analysis. Quantification is achieved by "spiking" a BNNT sample with pure nanoscale h-BN as an internal standard. To demonstrate the efficacy of the quantification technique two BNNT enrichment methods, surfactant wrapping and centrifugation, and a novel sonication-assisted isovolumetric filtration are introduced. FTIR spectra of enriched samples show clear trends throughout the processes. We propose and demonstrate that FTIR peak ratios of the transverse and buckling modes of mixed h-BN/BNNT samples can be used to calibrate and quantify h-BN content in any BNNT sample. Hopefully, this method enables as-received BNNTs to be quantifiably enriched from low purity commercial feedstocks, enabling future development and study of BNNTs and related technology.
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Affiliation(s)
- Haley Harrison
- Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro Greensboro NC 27401 USA
| | | | - Kyle S Nowlin
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University Greensboro NC 27401 USA +1-336-285-2861
| | - Andrew J Guenthner
- Air Force Research Laboratory, Aerospace Systems Directorate, Edwards AFB CA 93524 USA
| | - Kamran B Ghiassi
- Air Force Research Laboratory, Aerospace Systems Directorate, Edwards AFB CA 93524 USA
| | - Ajit D Kelkar
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University Greensboro NC 27401 USA +1-336-285-2861
| | - Jeffrey R Alston
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University Greensboro NC 27401 USA +1-336-285-2861
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38
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Mungse HP, Gupta K, Singh R, Sharma OP, Sugimura H, Khatri OP. Alkylated graphene oxide and reduced graphene oxide: Grafting density, dispersion stability to enhancement of lubrication properties. J Colloid Interface Sci 2019; 541:150-162. [DOI: 10.1016/j.jcis.2019.01.064] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/20/2018] [Accepted: 01/15/2019] [Indexed: 11/24/2022]
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39
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Xu Z, Lou W, Zhao G, Zheng D, Hao J, Wang X. Cu nanoparticles decorated WS 2 nanosheets as a lubricant additive for enhanced tribological performance. RSC Adv 2019; 9:7786-7794. [PMID: 35521156 PMCID: PMC9061520 DOI: 10.1039/c9ra00337a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/01/2019] [Indexed: 12/22/2022] Open
Abstract
Tungsten disulfide–polydopamine–copper (WS2–PDA–Cu) nanocomposites were first prepared by a green and effective biomimetic strategy and then used as a lubricant additive in polyalkylene glycol (PAG). The biomimetic strategy is inspired by the adhesive proteins in mussels. WS2 nanosheets were decorated by uniformly dispersed Cu nanoparticles (Cu NPs). The WS2–PDA–Cu nanocomposites with good dispersion stability, showed better friction reducing and anti-wear properties than WS2, Cu NPs and WS2–Cu dispersed in PAG base oil. The average friction coefficient and wear volume were reduced by 33.56% and 97.95%, respectively, at 150 °C under a load of 100 N for the optimal concentration of 0.9 wt%. The lubrication mechanism was discussed. Tungsten disulfide–polydopamine–copper (WS2–PDA–Cu) nanocomposites were first prepared by a green and effective biomimetic strategy and then used as a lubricant additive in polyalkylene glycol (PAG).![]()
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Affiliation(s)
- Zhuang Xu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China .,University of Chinese Academy of Sciences Beijing 100049 PR China
| | - Wenjing Lou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Gaiqing Zhao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Dongdong Zheng
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Junying Hao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Xiaobo Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
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40
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Zhao J, Chen G, He Y, Li S, Duan Z, Li Y, Luo J. A novel route to the synthesis of an Fe 3O 4/h-BN 2D nanocomposite as a lubricant additive. RSC Adv 2019; 9:6583-6588. [PMID: 35518465 PMCID: PMC9060957 DOI: 10.1039/c8ra10312g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 01/31/2019] [Indexed: 01/14/2023] Open
Abstract
Two-dimensional (2D) nanocomposites as lubricant additives have been widely studied, but the synthetic process of the nanocomposites is not always environmentally friendly or economical. In this study, a new 2D nanocomposite, Fe3O4/h-BN, has been prepared by physical mixing of exfoliated h-BN nanosheets and organically modified Fe3O4 nanoparticles. The nanocomposite displays a unique 2D-layered structure without folds or wrinkles. The Fe3O4 nanoparticles are uniformly dispersed on the h-BN nanosheet surfaces with the help of an elegant self-assembly strategy from van der Waals interactions. For the first time, Fe3O4/h-BN is studied as a lubricant additive and it exhibits excellent tribological properties. The coefficient of friction (COF) and the wear depth can be respectively reduced by 47% and 80% compared with the base oil. Based on the advantages of a simple and low-cost synthetic process and significant tribological properties, Fe3O4/h-BN offers great potential for lubrication application.
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Affiliation(s)
- Jun Zhao
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology Beijing 100029 China
| | - Guangyan Chen
- State Key Laboratory of Tribology, Tsinghua University Beijing 100084 China
| | - Yongyong He
- State Key Laboratory of Tribology, Tsinghua University Beijing 100084 China
| | - Shuangxi Li
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology Beijing 100029 China
| | - Zhiqiang Duan
- Electronics and Information Engineering College, Hunan University of Science and Engineering Yongzhou Hunan 425199 China
| | - Yingru Li
- Institute of Materials, China Academy of Engineering Physics PO Box 9071-11 621908 Mianyang Sichuan China
| | - Jianbin Luo
- State Key Laboratory of Tribology, Tsinghua University Beijing 100084 China
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41
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Wang J, Zhang D, Zhang Y, Cai W, Yao C, Hu Y, Hu W. Construction of multifunctional boron nitride nanosheet towards reducing toxic volatiles (CO and HCN) generation and fire hazard of thermoplastic polyurethane. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:482-494. [PMID: 30296673 DOI: 10.1016/j.jhazmat.2018.09.009] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 07/17/2018] [Accepted: 09/03/2018] [Indexed: 05/27/2023]
Abstract
Considerable toxic volatiles (CO and HCN) generation and high fire hazard has definitely compromised the application of thermoplastic polyurethane (TPU). Here, a novel functionalization strategy for bulky h-BN is adopted to obtain the multifunctional CPBN, aiming at the flame retardancy reinforcement of TPU. The multifunctional CPBN is successfully prepared via the wrapping of phytic acid doped polypyrrole shell, following with the adsorption of copper ions. The obviously decreased peak heat release rate, peak smoke production rate and total smoke production values, obtained from cone test, confirms the reduced fire hazard of TPU composite with CPBN. The dramatic suppressions on CO and HCN releases can also be observed from TG-IR test. Tensile test demonstrates that adding CPBN favors the reinforcement in mechanical property of TPU. Thus, the concurrent improvements in flame retardancy and mechanical performance are achieved by incorporating CPBN. This work opens up new avenues for the functionalization of h-BN, and thus facilitates its promising applications in polymer-matrix composite.
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Affiliation(s)
- Junling Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Dichang Zhang
- Department of Physical Science, University of California, Irvine, CA 92697, USA.
| | - Yan Zhang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Wei Cai
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Congxue Yao
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Weizhao Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China.
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Abstract
Nanolubricants have attracted great interest due to the promise of friction and wear reduction by introducing nanoparticles. To date, the foremost challenge for developing a new nanolubricant is particle suspension. To understand the mechanisms of nanoparticle dispersion and identify bottlenecks, we conducted a comprehensive review of published literature and carried out an analysis of dispersion based on available data from the past 20 years. This research has led to three findings. First, there are two primary methods in dispersion: formulation with dispersant and surface modification. Second, surfactant and alkoxysilanes are primary chemical groups used for surface modification. Third, functionalization using surfactant is found to be suitable for nanoparticles smaller than 50 nm. For larger particles (>50 nm), alkoxysilanes are the best. The existence of a critical size has not been previously known. To better understand these three findings, we conducted an analysis using a numerical calculation based on colloidal theory. It revealed that a minimal thickness of the grafted layer in surfactant-modified nanoparticles was responsible for suspending small nanoparticles. For larger nanoparticles (>50 nm), they were suitable for silanization of alkoxysilane due to increased grafting density. This research provides new understanding and guidelines to disperse nanoparticle in a lubricating oil.
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43
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Zhu C, Yan Y, Wang F, Cui J, Zhao S, Gao A, Zhang G. Facile fabrication of long-chain alkyl functionalized ultrafine reduced graphene oxide nanocomposites for enhanced tribological performance. RSC Adv 2019; 9:7324-7333. [PMID: 35519948 PMCID: PMC9061202 DOI: 10.1039/c9ra00433e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 02/15/2019] [Indexed: 01/14/2023] Open
Abstract
Long-chain alkyl functionalized ultrafine reduced graphene oxide nanocomposites with outstanding dispersibility and enhanced lubricating performances.
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Affiliation(s)
- Chao Zhu
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Yehai Yan
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Fan Wang
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Jian Cui
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Shuai Zhao
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Ailin Gao
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
| | - Guangfa Zhang
- Key Laboratory of Rubber-Plastics
- Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics
- School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
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44
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Label-free aptasensor for the detection of cardiac biomarker myoglobin based on gold nanoparticles decorated boron nitride nanosheets. Biosens Bioelectron 2018; 126:143-150. [PMID: 30399516 DOI: 10.1016/j.bios.2018.10.060] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 11/20/2022]
Abstract
A novel electrochemical aptasensor based on gold nanoparticles decorated on boron nitride nanosheets (AuNPs/BNNSs) for the sensitive and selective detection of myoglobin (Mb) is reported. BNNSs were chemically synthesized by a low-cost and simple hydrothermal method. They were deposited onto the fluorine-doped tin oxide (FTO) electrode by a spin-coating method. Subsequently, AuNPs were chemically deposited onto the BNNS/FTO electrode by a seed-mediated chemical reduction method, with an average particle size of approximately 10 nm. The AuNPs/BNNSs/FTO electrode was used as a transducer to immobilize a thiol-functionalized DNA aptamer (Apt) via the covalent interaction of Au-S for the specific binding of Mb. [Fe(CN)6]3-/4- was used as a redox probe to monitor the oxidation current variation upon the binding of Mb with varying concentrations onto the sensor surface. The Apt/AuNPs/BNNSs/FTO sensor shows a high signal response for Mb with a detection limit of 34.6 ng/mL and a dynamic response range of 0.1-100 µg/mL. It is a promising candidate for point-of-care diagnosis in real samples. This strategy could make possible the application of other 2D materials with wide bandgaps for the development of biosensors.
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45
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Liu L, Zhou M, Li X, Jin L, Su G, Mo Y, Li L, Zhu H, Tian Y. Research Progress in Application of 2D Materials in Liquid-Phase Lubrication System. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1314. [PMID: 30061482 PMCID: PMC6117646 DOI: 10.3390/ma11081314] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/20/2018] [Accepted: 07/23/2018] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2D) materials are ultra-thin crystals with layered structures that have a monolayer and multiple layers of atomic thickness. Due to excellent performance, 2D materials represented by graphene have caused great interest from researchers in various fields, such as nano-electronics, sensors, solar cells, composite materials, and so on. In recent years, when graphite was used for liquid phase lubrication, there have been many disadvantages limiting its lubrication properties, such as stable dispersion, fluidity and so on. Therefore, 2D materials have been used as high-performance liquid-phase lubricant additives, which become a perfect entry point for high-performance nano-lubricants and lubrication applications. This review describes the application of 2D materials as additives in the field of liquid-phase lubrication (such as lubricating oil and water lubrication) in terms of experimental content, lubrication performance, and lubrication mechanism. Finally, the challenges and prospects of 2D materials in the lubrication field were also proposed.
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Affiliation(s)
- Lincong Liu
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Ming Zhou
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Xiao Li
- Chengdu Carbon Co., Ltd., No.88 South2 Road, Economic and Technological Development Zone, Chengdu 610100, China.
| | - Long Jin
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Guoshi Su
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Youtang Mo
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Liangchuan Li
- School of Mechanical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
| | - Hongwei Zhu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Yu Tian
- State Key Laboratory of Tribology, School of Mechanical Engineering, Tsinghua University, Beijing 100084, China.
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46
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Xu Z, Lou W, Zhao G, Zhao Q, Xu N, Hao J, Wang X. Preparation of WS2 nanocomposites via mussel-inspired chemistry and their enhanced dispersion stability and tribological performance in polyalkylene glycol. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1479269] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Zhuang Xu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Wenjing Lou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Gaiqing Zhao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Qin Zhao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Nan Xu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Junying Hao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Xiaobo Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, P.R. China
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47
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Nanofluid lubrication and high pressure Raman studies of oxygen functionalized graphene nanosheets. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Zhang L, He Y, Zhu L, Yang C, Niu Q, An C. In Situ Alkylated Graphene as Oil Dispersible Additive for Friction and Wear Reduction. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01338] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lei Zhang
- College
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
- PetroChina Lanzhou Lubricating Oil R&D Institute, Lanzhou, Gansu 730000, P R of China
| | - Yi He
- College
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
| | - Lin Zhu
- College
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
| | - Chao Yang
- PetroChina Dalian Lubricating Oil R&D Institute, Dalian, Liaoning 116032, P R of China
| | - Qianhe Niu
- College
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
| | - Chenglin An
- College
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China
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49
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Desanker M, He X, Lu J, Liu P, Pickens DB, Delferro M, Marks TJ, Chung YW, Wang QJ. Alkyl-Cyclens as Effective Sulfur- and Phosphorus-Free Friction Modifiers for Boundary Lubrication. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9118-9125. [PMID: 28219241 DOI: 10.1021/acsami.6b15608] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Modern automotive engines operate at higher power densities than ever before, driving a need for new lubricant additives capable of reducing friction and wear further than ever before while not poisoning the catalytic converter. Reported in this paper is a new class of molecular friction modifier (FM), represented by 1,4,7,10-tetradodecyl-1,4,7,10-tetraazacyclododecane (1a), designed to employ thermally stable, sulfur- and phosphorus-free alkyl-substituted nitrogen heterocycles with multiple nitrogen centers per molecule. The multiple nitrogen centers enable cooperative binding to a surface which provides strong surface adsorption and lubricant film durability in the boundary lubrication (BL) regime. A 1 wt % loading of the cyclen FM 1a in Group III base oil exhibits strong surface adsorption, leading to excellent reductions in friction (70%) and wear (95%) versus the pure Group III oil across a wide temperature range. The lubricant with the new FM additive also outperforms two commercially available noncyclic amine-based FMs and a fully formulated commercial 5W30 motor oil.
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Affiliation(s)
- Michael Desanker
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xingliang He
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Jie Lu
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Pinzhi Liu
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - David B Pickens
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Massimiliano Delferro
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Tobin J Marks
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yip-Wah Chung
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Q Jane Wang
- Department of Chemistry, ‡Department of Mechanical Engineering, and ∥Department of Materials Science and Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
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50
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Xu Z, Lou W, Wu X, Wang X, Hao J. Investigating the tribological behavior of PEGylated MoS2 nanocomposites as additives in polyalkylene glycol at elevated temperature. RSC Adv 2017. [DOI: 10.1039/c7ra10992j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MoS2–polydopamine–methoxypolyethyleneglycol amine (MoS2–PDA–MGA) was synthesized through the combination of mussel-inspired chemistry and the Michael addition reaction.
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Affiliation(s)
- Zhuang Xu
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Wenjing Lou
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xinhu Wu
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Xiaobo Wang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Junying Hao
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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