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Maselugbo AO, Sadiku BL, Alston JR. Thermal conductivity of ethylene glycol and propylene glycol nanofluids with boron nitride nano-barbs. NANOSCALE 2023; 15:8406-8415. [PMID: 37092907 DOI: 10.1039/d2nr06332h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This study investigates the potential of composite allotrope boron nitride nanobarbs (BNNBs) as nanoparticles for enhancing the thermal conductivity of nanofluids based on mixtures of ethylene glycol and propylene glycol with water. BNNBs are allotrope composites composed of boron nitride nanotube cores with walls decorated with attached hexagonal boron nitride crystals, creating a jagged morphology that facilitates the formation of a connected network and contributes to the enhancement of thermal conductivity in nanofluids. BNNBs exhibit high thermal conductivity due to efficient phonon transfer and they are electrical insulators owing to their wide bandgap. The effect of BNNB concentration in carrier fluids on nanofluid thermal conductivity was investigated by introducing BNNBs into ethylene glycol-water and propylene glycol-water mixtures at 0-10 wt%. The results showed that BNNBs enhanced thermal conductivity of carrier fluids up to 45%, and the enhancement was proportional to the concentration of BNNBs in the carrier fluid. The study also investigated the dispersion stability of BNNBs in different solvents using Hansen Solubility Parameters, revealing that propylene glycol mixtures demonstrated better long-term stability compared to ethylene glycol mixtures. The findings suggest that BNNBs have great potential for use as thermally conductive nanoparticles in nanofluids for various heat transfer applications. Future research should focus on enhancing the dispersion stability of BNNB nanofluids and exploring the influence of BNNB morphology on the thermal conductivity and other thermophysical properties of nanofluids.
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Affiliation(s)
- Adesewa O Maselugbo
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC 27401, USA.
| | - Bolaji L Sadiku
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC 27401, USA.
| | - Jeffrey R Alston
- Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC 27401, USA.
- Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC 27401, USA
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2
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Klochko L, Mandrolko V, Castanet G, Pernot G, Lemoine F, Termentzidis K, Lacroix D, Isaiev M. Molecular dynamics simulation of thermal transport across a solid/liquid interface created by a meniscus. Phys Chem Chem Phys 2023; 25:3298-3308. [PMID: 36629555 DOI: 10.1039/d2cp04601f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Understandings heat transfer across a solid/liquid interface is crucial for establishing novel thermal control pathways in a range of energy applications. One of the major problems raised in this context is the impact of the three-phase contact line between solid, liquid, and gas on heat flux perturbations at the nanoscale. The focus of this research is the thermal transport via nanosized meniscus restricted between two solid walls. The molecular dynamics approach was used to consider different wetting states of the meniscus by varying the interaction potential between atoms of the substrate and the liquid. The influence of the meniscus size on the energy exchange between two solid walls was also studied. It was discovered that possessing a three-phase contact line reduces the interfacial boundary resistance between solid and liquid. Furthermore, the finite element method was employed to connect atomistic simulations with continuum mechanics. We show that the wetting angle and interfacial boundary resistance are essential important parameters for multiscale analysis of thermal engineering issues with precise microscale parametrization.
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Affiliation(s)
- L Klochko
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
| | - V Mandrolko
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France. .,Faculty of Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska St., Kyiv, 01601, Ukraine
| | - G Castanet
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
| | - G Pernot
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
| | - F Lemoine
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
| | - K Termentzidis
- Université de Lyon, CNRS, INSA-Lyon, CETHIL UMR5008, F-69621, Villeurbanne, France
| | - D Lacroix
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
| | - M Isaiev
- Université de Lorraine, CNRS, LEMTA, 54000, Nancy, France.
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3
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Experimental examination of the properties of Fe3O4/water nanofluid, and an estimation of a correlation using an artificial neural network. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.121150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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4
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Numerical Investigation of the Use of Boron Nitride/Water and Conventional Nanofluids in a Microchannel Heat Sink. Processes (Basel) 2022. [DOI: 10.3390/pr10122639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The purpose of this paper is to study the effects of the use of boron nitride (BN) and other conventional nanoparticles (Al2O3, CuO and TiO2) on pressure drop and heat transfer in a microchannel. The governing equations for forced fluid flow and heat transfer were worked out by using fluent computational fluid dynamics (CFD) code. Computational results collected from fluent CFD code for Al2O3 as the nano-particle were compared with numerical values used in the literature for validation. The basis of a water-cooled (pure water, Al2O3/Water, CuO/Water, TiO2/Water and BN/Water) smooth microchannel was outlined, and then the corresponding laminar flow and heat transfer were evaluated numerically. The results from the numerical tests (NT) express good agreement with the values found in the literature. These results also indicate, through the comparison which was performed by taking the heat transfer and pressure loss parameters between BN and other widely used conventional nanoparticles (Al2O3, CuO and TiO2) into consideration, that BN is the more favorable nanoparticle. In comparison to other common nanoparticles (Al2O3, CuO and TiO2), BN enhances heat transfer and slightly raised pressure losses owing to its high thermal conductivity and high velocity profile because of low density. It is also chemically stable at the highest temperature relative to most solid materials. Thus, it has a structure that can be used in cooling systems for a long time without causing a problem of agglomeration.
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5
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Functionalized boron nitride ceramic nanofiltration membranes for semiconductor wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Ma C, He L, Liu R, Guan H, Ge C, Zhang X. Preparation of Polypyrrole/Boron Nitride Composites and Composite Sponges for Efficient Photothermal Utilization. ChemistrySelect 2022. [DOI: 10.1002/slct.202201244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chunxue Ma
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Lili He
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Rui Liu
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Hongyu Guan
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Chunhua Ge
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Xiangdong Zhang
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
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7
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Thermal Analysis on MHD Flow of Ethylene Glycol-based BNNTs Nanofluids via Peristaltically Induced Electroosmotic Pumping in a Curved Microchannel. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-06173-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Mbambo MC, Madito MJ, Khamliche T, Mtshali CB, Khumalo ZM, Madiba IG, Mothudi BM, Maaza M. Thermal conductivity enhancement in gold decorated graphene nanosheets in ethylene glycol based nanofluid. Sci Rep 2020; 10:14730. [PMID: 32895420 PMCID: PMC7477225 DOI: 10.1038/s41598-020-71740-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 08/11/2020] [Indexed: 11/09/2022] Open
Abstract
We report on the synthesis and thermal conductivity of gold nanoparticles (AuNPs) decorated graphene nanosheets (GNs) based nanofluids. The GNs-AuNPs nanocomposites were synthesised using a nanosecond pulsed Nd:YAG laser (wavelength = 1,064 nm) to ablate graphite target followed by Au in ethylene glycol (EG) base fluid to obtain GNs-AuNPs/EG hybrid nanofluid. The characterization of the as-synthesised GNs-AuNPs/EG hybrid nanofluid confirmed a sheet-like structure of GNs decorated with crystalline AuNPs with an average particle diameter of 6.3 nm. Moreover, the AuNPs appear smaller in the presence of GNs which shows the advantage of ablating AuNPs in GNs/EG. The thermal conductivity analysis in the temperature range 25-45 °C showed that GNs-AuNPs/EG hybrid nanofluid exhibits an enhanced thermal conductivity of 0.41 W/mK compared to GNs/EG (0.35 W/mK) and AuNPs/EG (0.39 W/mK) nanofluids, and EG base fluid (0.33 W/mK). GNs-AuNPs/EG hybrid nanofluid displays superior enhancement in thermal conductivity of up to 26% and this is due to the synergistic effect between AuNPs and graphene sheets which have inherent high thermal conductivities. GNs-AgNPs/EG hybrid nanofluid has the potential to impact on enhanced heat transfer technological applications. Also, this work presents a green synthesis method to produce graphene-metal nanocomposites for various applications.
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Affiliation(s)
- M C Mbambo
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa. .,iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa. .,Department of Physics, College of Science, Engineering and Technology, University of South Africa, Private Bag X6, Florida, Johannesburg, 1710, South Africa.
| | - M J Madito
- iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
| | - T Khamliche
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa.,iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
| | - C B Mtshali
- iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
| | - Z M Khumalo
- iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
| | - I G Madiba
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa.,iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
| | - B M Mothudi
- Department of Physics, College of Science, Engineering and Technology, University of South Africa, Private Bag X6, Florida, Johannesburg, 1710, South Africa
| | - M Maaza
- UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO Box 392, Pretoria, South Africa.,iThemba LABS-National Research Foundation, 1 Old Faure Road, PO Box 722, Somerset West, Western Cape Province, 7129, South Africa
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9
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Bo Z, Ying C, Yang H, Wu S, Yang J, Kong J, Yang S, Zhou Y, Yan J, Cen K. Highly Thermo-Conductive Three-Dimensional Graphene Aqueous Medium. NANO-MICRO LETTERS 2020; 12:138. [PMID: 34138125 PMCID: PMC7770698 DOI: 10.1007/s40820-020-00478-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/04/2020] [Indexed: 06/02/2023]
Abstract
Highly thermo-conductive aqueous medium is a crucial premise to demonstrate high-performance thermal-related applications. Graphene has the diamond comparable thermal conductivity, while the intrinsic two-dimensional reality will result in strong anisotropic thermal conductivity and wrinkles or even crumples that significantly sacrifices its inherent properties in practical applications. One strategy to overcome this is to use three-dimensional (3D) architecture of graphene. Herein, 3D graphene structure with covalent-bonding nanofins (3D-GS-CBF) is proposed, which is then used as the filler to demonstrate effective aqueous medium. The thermal conductivity and thermal conductivity enhancement efficiency of 3D-GS-CBF (0.26 vol%) aqueous medium can be as high as 2.61 W m-1 K-1 and 1300%, respectively, around six times larger than highest value of the existed aqueous mediums. Meanwhile, 3D-GS-CBF can be stable in the solution even after 6 months, addressing the instability issues of conventional graphene networks. A multiscale modeling including non-equilibrium molecular dynamics simulations and heat conduction model is applied to interpret experimental results. 3D-GS-CBF aqueous medium can largely improve the solar vapor evaporation rate (by 1.5 times) that are even comparable to the interfacial heating system; meanwhile, its cooling performance is also superior to commercial coolant in thermal management applications.
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Affiliation(s)
- Zheng Bo
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Chongyan Ying
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Huachao Yang
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China.
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China.
| | - Shenghao Wu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Jinyuan Yang
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Jing Kong
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Shiling Yang
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, People's Republic of China
| | - Yanguang Zhou
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China
| | - Jianhua Yan
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Kefa Cen
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
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10
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Lim H, Islam MA, Hossain MM, Yun H, Kim MJ, Seo TH, Hahn JR, Kim BJ, Jang SG. Effect of Polymeric In Situ Stabilizers on Dispersion Homogeneity of Nanofillers and Thermal Conductivity Enhancement of Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5563-5570. [PMID: 32345023 DOI: 10.1021/acs.langmuir.0c00664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Boron nitride (BN) nanofiller-based polymer composites have been considered promising candidates for efficient heat-dissipating packaging materials because of their superior thermal conductivity, mechanical strength, and chemical resistance. However, strong aggregation of the BN nanofillers in the composite matrix as well as the difficulty in the modification of the chemically inert surface prevents their effective use in polymer composites. Herein, we report an effective method by using in situ stabilizers to achieve homogeneous dispersion of boron nitride (BN) nanofillers in an epoxy-based polymeric matrix and demonstrate their use as efficient heat-dissipating materials. Poly(4-vinylpyridine) (P4VP) is designed and added into the epoxy resin to produce in situ stabilizers during preparation of hexagonal BNs (h-BNs) and BN nanotubes (BNNTs) dispersion. In-depth experimental and theoretical studies indicated that the homogeneous distribution of BN nanofillers in epoxy composites achieved by using the in situ stabilizer enhanced the thermal conductivity of the composite by ∼27% at the same concentration of the BN nanofillers. In addition, the thermal conductivity of the h-BN/epoxy composite (∼3.3 W/mK) was dramatically improved by ∼48% (4.9 W/mK) when the homogeneously dispersed BNNTs (∼1.8 vol %) were added. The concept of the proposed in situ stabilizer can be further utilized to prepare the epoxy composites with the homogeneous distribution of BN nanofillers, which is critical for reproducible and position-independent composite properties.
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Affiliation(s)
- Hongjin Lim
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Md Akherul Islam
- Department of Chemistry, Department of Bioactive Materials Sciences, and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Md Monir Hossain
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
- Department of Chemistry, Department of Bioactive Materials Sciences, and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Hongseok Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Myung Jong Kim
- Department of Chemistry, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Tae Hoon Seo
- Smart Energy & Nano Photonic R&D Group, Korea Institute of Industrial Technology, Gwangju 61012, Republic of Korea
| | - Jae Ryang Hahn
- Department of Chemistry, Department of Bioactive Materials Sciences, and Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Se Gyu Jang
- Functional Composite Materials Research Center, Institute of Advanced Composites Materials, Korea Institute of Science and Technology, Wanju, Jeonbuk 55324, Republic of Korea
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11
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Wang H, Liang X, Wang J, Jiao S, Xue D. Multifunctional inorganic nanomaterials for energy applications. NANOSCALE 2020; 12:14-42. [PMID: 31808494 DOI: 10.1039/c9nr07008g] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Our society has been facing more and more serious challenges towards achieving highly efficient utilization of energy. In the field of energy applications, multifunctional nanomaterials have been attracting increasing attention. Various energy applications, such as energy generation, conversion, storage, saving and transmission, are strongly dependent upon the electrical, thermal, mechanical, optical and catalytic functions of materials. In the nanoscale range, thermoelectric, piezoelectric, triboelectric, photovoltaic, catalytic and electrochromic materials have made major contributions to various energy applications. Inorganic nanomaterials' unique properties, such as excellent electrical and thermal conductivity, large surface area and chemical stability, make them highly competitive in energy applications. In this review, the latest research and development of multifunctional inorganic nanomaterials in energy applications were summarized from the perspective of different energy applications. Furthermore, we also illustrated the unique functions of inorganic nanomaterials to improve their performances and the combination of the functions of nanomaterials into a device. However, challenges may be traced back to the limitations set by scaling the relations between multifunctional inorganic nanomaterials and energy devices.
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Affiliation(s)
- Huilin Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. and University of Science and Technology of China, Hefei 230026, China
| | - Xitong Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. and University of Science and Technology of China, Hefei 230026, China
| | - Jiutian Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. and University of Science and Technology of China, Hefei 230026, China
| | - Shengjian Jiao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. and University of Science and Technology of China, Hefei 230026, China
| | - Dongfeng Xue
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. and University of Science and Technology of China, Hefei 230026, China
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12
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Li C, Long X, E S, Zhang Q, Li T, Wu J, Yao Y. Magnesium-induced preparation of boron nitride nanotubes and their application in thermal interface materials. NANOSCALE 2019; 11:11457-11463. [PMID: 31188376 DOI: 10.1039/c9nr03915e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The effective growth of boron nitride nanotubes (BNNTs) by boron oxide chemical vapor deposition (BOCVD) is extremely challenging, especially in a horizontal tube furnace. Herein, we propose a novel Mg-induction strategy, which is low cost and efficiently generates BNNTs by separating Mg from diverse boron sources (B2O3, H3BO3, borates, and so on). After careful analysis and discussion of the prepared BNNTs, the corresponding in situ generation of MgB2, an effective catalyst for the growth of BNNTs, was proposed and verified. This contribution will provide a low-cost, highly efficient and large-scale method for the preparation of BNNTs with the CVD method. The prepared BNNTs can be widely used in thermal interface materials, as demonstrated by the high thermal conductivity of the poly-vinyl alcohol (PVA) composite filled with these BNNTs. Therefore, our work offers a new strategy that is low cost and highly efficient for large-scale fabrication of BNNTs, and demonstrates that the prepared BNNTs have great potential applications in thermal interface materials.
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Affiliation(s)
- Chaowei Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
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13
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Al-Antaki AHM, Luo X, Alharbi TMD, Harvey DP, Pye S, Zou J, Lawrance W, Raston CL. Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride. RSC Adv 2019; 9:22074-22079. [PMID: 35518882 PMCID: PMC9066649 DOI: 10.1039/c9ra03970h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 07/05/2019] [Indexed: 01/21/2023] Open
Abstract
Exfoliation or scrolling of hexagonal boron nitride (h-BN) occurs in a vortex fluidic device (VFD) operating under continuous flow, with a tilt angle of −45° relative to the horizontal position. This new VFD processing strategy is effective in avoiding the build-up of material that occurs when the device is operated using the conventional tilt angle of +45°, where the h-BN precursor and scrolls are centrifugally held against the wall of the tube. At a tilt angle of −45° the downward flow aided by gravity facilitates material exiting the tube with the exfoliation of h-BN and formation of h-BN scrolls then optimized by systematically varying the other VFD operating parameters, including flow rate and rotational speed, along with concentration of h-BN and the choice of solvent. Water was the most effective solvent, which enhances the green chemistry metrics of the processing. Exfoliation or scrolling of h-BN occurs in a vortex fluidic device under downward continuous flow.![]()
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Affiliation(s)
| | - Xuan Luo
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Thaar M. D. Alharbi
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - David P. Harvey
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Scott Pye
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Jin Zou
- Materials Engineering
- Centre for Microscopy and Microanalysis
- The University of Queensland
- Brisbane
- Australia
| | - Warren Lawrance
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Colin L. Raston
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
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14
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Shtansky DV, Firestein KL, Golberg DV. Fabrication and application of BN nanoparticles, nanosheets and their nanohybrids. NANOSCALE 2018; 10:17477-17493. [PMID: 30226504 DOI: 10.1039/c8nr05027a] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Smart implementation of novel advanced nanomaterials is the key for the solution of many complex problems of modern science. In recent years, there has been a great interest in the synthesis and application of boron nitride (BN) nanotubes because of their unique physical, chemical, and mechanical properties. By contrast, the synthesis, characterization and exploration of other morphological types of BN nanostructure - BN nanoparticles and BN nanosheets - have received less attention. However, the detailed investigations on advantages of every morphological BN type for specific applications have only recently been started. One of the promising directions is the utilization of BN-based nanohybrids. This review is dedicated to the in-depth analysis of recently published works on the fabrication and application of BN nanoparticles, nanosheets, and their nanohybrids. It covers a variety of developed synthetic methods toward fabrication of such nanostructures, and their specific application potentials in catalysis, drug delivery, tribology and structural materials. Finally, the review focuses on the theoretical aspects of this quickly emerging field.
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Affiliation(s)
- Dmitry V Shtansky
- National University of Science and Technology "MISIS", Leninsky prospect 4, Moscow, 119049, Russian Federation.
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Yang C, Wang J, Chen Y, Liu D, Huang S, Lei W. One-step template-free synthesis of 3D functionalized flower-like boron nitride nanosheets for NH 3 and CO 2 adsorption. NANOSCALE 2018; 10:10979-10985. [PMID: 29856461 DOI: 10.1039/c8nr02074d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
3D functionalized flower-like boron nitride nanosheets (FBNNSs) were synthesized by a novel template-free method involving "cylinder compressing". Due to the high surface area (1114 m2 g-1), pore volume (0.7 cm3 g-1), hierarchical pore distributions, and abundant edge groups (-OH and -NH2), the 3D functionalized FBNNSs displayed excellent NH3 and CO2 adsorption up to 91 mg g-1 and 37.9 cc g-1 (74.4 mg g-1) at 1 bar, respectively. Moreover, the reusable performance of the material for gas adsorption was maintained for 10 cycles, indicating the stable structure of the FBNNSs. In addition, the adsorption mechanism was mainly explained by Lewis acid/base interactions, weak van der Waals interactions, and H-bonds. The combination of the enhanced adsorption capacity, excellent regenerability, and extraordinary chemical and thermal stability means that 3D FBNNSs possess huge potential for implementation in practical NH3 and CO2 capture.
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Affiliation(s)
- Chen Yang
- Institute for Frontier Materials, Deakin University, Locked Bag 2000, Geelong, Victoria 3220, Australia.
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Mohammed Al-antaki AH, Luo X, Duan A, Lamb RN, Eroglu E, Hutchison W, Zou YC, Zou J, Raston CL. Continuous flow synthesis of phosphate binding h-BN@magnetite hybrid material. RSC Adv 2018; 8:40829-40835. [PMID: 35557913 PMCID: PMC9091421 DOI: 10.1039/c8ra08336c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/22/2018] [Indexed: 01/22/2023] Open
Abstract
Hexagonal boron nitride (h-BN) is rendered magnetically responsive in aqueous media by binding superparamagnetic magnetite nanoparticles 8.5–18.5 nm in diameter on the surface. The composite material was generated under continuous flow in water in a dynamic thin film in a vortex fluidic device (VFD) with the source of iron generated by laser ablation of a pure iron metal target in the air above the liquid using a Nd:YAG pulsed laser operating at 1064 nm and 360 mJ. Optimum operating parameters of the VFD were a rotational speed of 7.5k rpm for the 20 mm OD (17.5 mm ID) borosilicate glass tube inclined at 45 degrees, with a h-BN concentration at 0.1 mg mL−1, delivered at 1.0 mL min−1 using a magnetically stirred syringe to keep the h-BN uniformly dispersed in water prior to injection into the base of the rapidly rotating tube. The resulting composite material, containing 5.75% weight of iron, exhibited high phosphate ion adsorption capacity, up to 171.2 mg PO43− per gram Fe, which was preserved on recycling the material five times. Vortex fluidic fabricated h-BN@magnetite under continuous flow in water exhibits recyclable high phosphate ion adsorption capacity.![]()
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Affiliation(s)
| | - Xuan Luo
- Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Alex Duan
- Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES)
- The University of Melbourne
- Victoria 3010
- Australia
| | - Robert N. Lamb
- Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES)
- The University of Melbourne
- Victoria 3010
- Australia
| | - Ela Eroglu
- Department of Chemical Engineering
- Curtin University
- Perth
- Australia
| | - Wayne Hutchison
- School of PEMS
- University of New South Wales
- ADFA Campus
- Canberra BC
- Australia
| | - Yi-Chao Zou
- Materials Engineering and Centre for Microscopy and Microanalysis
- The University of Queensland
- Brisbane
- Australia
| | - Jin Zou
- Materials Engineering and Centre for Microscopy and Microanalysis
- The University of Queensland
- Brisbane
- Australia
| | - Colin L. Raston
- Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
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