Nano Materials Science最新文献_第2页

Spatially engineering tri-layer nanofiber dressings featuring asymmetric wettability for wound healing 空间工程三层纳米纤维敷料具有非对称润湿性，可促进伤口愈合

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-10-01 DOI: 10.1016/j.nanoms.2024.01.008

Tingting Shi , Yuan Liu , Donghui Wang , Dan Xia , Baoe Li , Ruodan Xu , Ning Li , Chunyong Liang , Menglin Chen

{"title":"Spatially engineering tri-layer nanofiber dressings featuring asymmetric wettability for wound healing","authors":"Tingting Shi , Yuan Liu , Donghui Wang , Dan Xia , Baoe Li , Ruodan Xu , Ning Li , Chunyong Liang , Menglin Chen","doi":"10.1016/j.nanoms.2024.01.008","DOIUrl":"10.1016/j.nanoms.2024.01.008","url":null,"abstract":"<div><div>Inspired by the skin structure, an asymmetric wettability tri-layer nanofiber membrane (TNM) consisting of hydrophilic inner layer loaded with lidocaine hydrochloride (LID), hydrophobic middle layer with ciprofloxacin (CIP) and hydrophobic outer layer has been created. The hydrophobic outer layer endows the TNM with waterproof function and anti-adhesion from contaminants. The hydrophobic middle layer with CIP preserves long-term inhibition of bacteria growth and the hydrophilic inner layer with LID possesses optimal water-absorbing capacity and air permeability. The TNM dramatically elevates the water contact angles from 10° (inner layer) to 120° (outer layer), indicating an asymmetric wettability, which could directionally transport wound exudate within the materials and meanwhile maintain a comfortable and moist environment to promote wound healing. Furthermore, the sequential release of LID and CIP could relieve pain rapidly and achieve antibacterial effect in the long run, respectively. In addition, the TNM shows superior biocompatibility towards L929 cells. The in vivo results show the TNM could prevent infection, accelerate epithelial regeneration and significantly accelerate wound healing. This study indicates the developed TNM with asymmetrical wettability and synergetic drug release shows great potential as a wound dressing in clinical application.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 5","pages":"Pages 611-624"},"PeriodicalIF":9.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139590301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural effects induced by dialysis-based purification of carbon nanomaterials 透析法提纯碳纳米材料的结构效应

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.12.002

{"title":"Structural effects induced by dialysis-based purification of carbon nanomaterials","authors":"","doi":"10.1016/j.nanoms.2023.12.002","DOIUrl":"10.1016/j.nanoms.2023.12.002","url":null,"abstract":"<div>Dialysis plays a crucial role in the purification of nanomaterials but its impact on the structural properties of carbon nanomaterials was never investigated. Herein, a carbon-based nanomaterial generated electrochemically in potassium phosphate buffer, was characterized before and after dialysis against pure water. It is shown that dialysis affects the size of the carbon domains, structural organization, surface functionalization, oxidation degree of carbon, and grade of amorphicity. Accordingly, dialysis drives the nanomaterial organization from discrete roundish carbon domains, with sizes ranging from 70 to 160 nm, towards linear stacking structures of small nanoparticles (<15 nm). In parallel, alcohol and ether (epoxide) surface groups evolve into more oxidized carbon groups (e.g., ketone and ester groups). Investigation of the as-prepared nanomaterial by electron paramagnetic resonance (EPR) revealed a resonance signal consistent with carbon-oxygen centred radicals.Additionally, this study brings to light the selective affinity of the carbon nanomaterial under study to capture Na+ ions, a property greatly enhanced by the dialysis process, and its high ability to trap oxygen, particularly before dialysis. These findings open new perspectives for the application of carbon-based nanomaterials and raise awareness of the importance of structural changes that can occur during the purification of carbon-based nanomaterials.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 475-483"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S258996512300079X/pdfft?md5=8193052ee0297268166bc2e9c62884b0&pid=1-s2.0-S258996512300079X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138687052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in metal-organic framework-derived single-atom catalysts for biomedicine 用于生物医学的金属有机框架衍生单原子催化剂的研究进展

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.12.006

{"title":"Advances in metal-organic framework-derived single-atom catalysts for biomedicine","authors":"","doi":"10.1016/j.nanoms.2023.12.006","DOIUrl":"10.1016/j.nanoms.2023.12.006","url":null,"abstract":"<div>As a alternative for natural enzymes, nanozymes has shown enzyme-like activity and selectivity in the field of various kinds of biomedical application, which has attracted considerable research interest. Recently, single-atom catalysts (SACs) have been extensively studied due to their similar active centers, coordination environment and better stability to natural enzymes. Metal-organic frameworks (MOFs) have been demonstrated as highly promising precursors for the synthesis of various types of SACs. MOF-derived SACs can not only significantly enhance the catalytic activity, but also improve the selectivity of nanozymes due to tunable coordination environment and structure, thereby receiving widespread attention in biomedicine. This review provided an overview of the preparation strategies for MOF-derived SACs, and then detailed the latest research progress of the SACs in the biomedical field for cancer, antibacterial, antioxidation and biosensors. Finally, the challenges and potential future opportunities of MOF-derived SACs in biomedical applications are proposed.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 396-412"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000922/pdfft?md5=e10913bcad67d19505543b5a2f45570a&pid=1-s2.0-S2589965123000922-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139077329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient processed carbon Soot@MoS2 hybrid Bi-functional electrode for dye-sensitized solar cell and asymmetric supercapacitor devices 用于染料敏化太阳能电池和不对称超级电容器设备的高效加工碳烟@MoS2 混合双功能电极

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2024.01.001

{"title":"Efficient processed carbon Soot@MoS2 hybrid Bi-functional electrode for dye-sensitized solar cell and asymmetric supercapacitor devices","authors":"","doi":"10.1016/j.nanoms.2024.01.001","DOIUrl":"10.1016/j.nanoms.2024.01.001","url":null,"abstract":"<div>A feasible approach to rectify the world's energy demand using sustainable development of adequate energy generation and storage technologies in a single channel. In this respect, we made a holistic approach with a bi-functional electrode material to perform effectively in energy generation and storage applications. MoS2 nanosheets were produced by the eco-friendly method and reduced graphene oxide is used to prepared by carbon soot which is derived from castor oil. The prepared soot and rGO were combined with MoS2 nanosheets using a simple sonication method. The as-prepared sample was introduced in the supercapacitor and DSSC application. The combination MoS2@rGO provides an enhanced conversion efficiency of 11.81 % and the reproducibility of DSSC is also studied. Further, MoS2@rGO is used to fabricate an asymmetric supercapacitor to investigate its real-time application. The device produced the maximum power density (1666.6 mW/kg) and energy density (25.69 mWh/Kg) at 1 A/g. The asymmetric supercapacitor device holds a cyclic stability of 81.4 % for 5000 cycles and it powered up an LED device for 4 min.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 484-494"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965124000011/pdfft?md5=5c93e0970c6281a7138d3bb123c37cdb&pid=1-s2.0-S2589965124000011-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139462734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of highly active and durable oxygen evolution catalyst with intrinsic chlorine inhibition property for seawater electrolysis 具有本征抑氯性能的海水电解高活性持久析氧催化剂的设计

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.10.003

{"title":"Design of highly active and durable oxygen evolution catalyst with intrinsic chlorine inhibition property for seawater electrolysis","authors":"","doi":"10.1016/j.nanoms.2023.10.003","DOIUrl":"10.1016/j.nanoms.2023.10.003","url":null,"abstract":"<div>High-efficiency seawater electrolysis is impeded by the low activity and low durability of oxygen evolution catalysts due to the complex composition and competitive side reactions in seawater. Herein, a heterogeneous-structured catalyst is constructed by depositing NiFe-layered double hydroxides (NiFe-LDH) on the substrate of MXene (V2CTx) modified Ni foam (NF), and abbreviated as NiFe-LDH/V2CTx/NF. As demonstrated, owing to the intrinsic negative charge characteristic of V2CTx, chlorine ions are denied entry to the interface between NiFe-LDH and V2CTx/NF substrate, thus endowing NiFe-LDH/V2CTx/NF catalyst with high corrosion resistance and durable stability for 110 h at 500 mA cm−2. Meanwhile, the two-dimensional structure and high electrical conductivity of V2CTx can respectively enlarge the electrochemical active surface area and guarantee fast charge transfer, thereby synergistically promoting the catalytic performance of NiFe-LDH/V2CTx/NF in both deionized water electrolyte (261 mV at 100 mA cm−2) and simulated seawater electrolyte (241 mV at 100 mA cm−2). This work can guide the preparation of oxygen evolution catalysts and accelerate the industrialization of seawater electrolysis.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 413-418"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000648/pdfft?md5=82a33fb2c64bd2d8c0a655435ec3d8f4&pid=1-s2.0-S2589965123000648-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138495173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LDH sealing for PEO coated friction stir welded AZ31/AA5754 materials 用于 PEO 涂层搅拌摩擦焊接 AZ31/AA5754 材料的 LDH 密封件

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2024.02.009

{"title":"LDH sealing for PEO coated friction stir welded AZ31/AA5754 materials","authors":"","doi":"10.1016/j.nanoms.2024.02.009","DOIUrl":"10.1016/j.nanoms.2024.02.009","url":null,"abstract":"<div>The need to combine various metals in light-weight constructions requires the development of coatings that prevent galvanic corrosion. Layered double hydroxides (LDHs) can be an example of such coatings, which were previously successfully obtained in situ on individual materials. In addition, the possibility of LDH growth (including LDH growth in the presence of chelating agents) on the surface of plasma electrolytic oxidation (PEO)-coated metals was previously shown. This PEO + LDH combination could improve both corrosion and mechanical characteristics of the system. The possibility of LDHs formation in situ on the surface of PEO-coated friction stir welded (FSW) magnesium-aluminum materials (AZ31/AA5754 system was selected as a model one) was demonstrated in the presence of 1,3-diamino-2-hydroxypropane-N,N,N’,N’-tetraacetic acid (DHPTA) as a chelating agent, which was selected based on analysis of respective metal-ligand compounds stability. LDHs growth was achieved under ambient pressure without addition of carbonates in the electrolyte. The effectiveness of the resulting coating is shown both for corrosion resistance and hardness.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 428-442"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965124000205/pdfft?md5=31b26272b98d0eb6511f7d4a0464b30a&pid=1-s2.0-S2589965124000205-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140267940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gradient honeycomb metastructure with broadband microwave absorption and effective mechanical resistance 具有宽带微波吸收和有效机械阻力的梯度蜂窝元结构

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.09.005

{"title":"Gradient honeycomb metastructure with broadband microwave absorption and effective mechanical resistance","authors":"","doi":"10.1016/j.nanoms.2023.09.005","DOIUrl":"10.1016/j.nanoms.2023.09.005","url":null,"abstract":"<div>Multifunctional metastructure integrated broadband microwave absorption and effective mechanical resistance has attracted much attention. However, multifunctional performance is limited by the lack of theoretical approaches to integrated design. Herein, a multi-layer impedance gradient honeycomb (MIGH) was designed through theoretical analysis and simulation calculation, and fabricated using 3D printing technique. A theoretical calculation strategy for impedance gradient structure was established based on the electromagnetic parameter equivalent method and the multi-layer finite iterative method. The impedance of MIGH was analyzed by the theoretical calculation strategy to resolve the broadband absorption. Intrinsic loss mechanism of matrix materials and distributions of electric fields, magnetic fields and power loss were analyzed to investigate the absorption mechanism. Experimental results indicated that a 15 mm thick designed metastructure can achieve the absorption more than 88.9% in the frequency range of 2-18 GHz. Moreover, equivalent mechanical parameters of MIGH was calculated by integral method according to the Y-shaped model. Finite Element analysis of stress distributions were carried out to predict the deformation behavior. Mechanical tests demonstrate that MIGH achieved the compression modulus of 22.89 MPa and flexure modulus of 17.05 MPa. The integration of broadband electromagnetic absorption and effective mechanical resistance was achieved by the proposed design principle and fabrication methodology.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 456-466"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000405/pdfft?md5=ed63c6c32af2b4a1e6d12acbc64ecd36&pid=1-s2.0-S2589965123000405-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138517055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced strategies for marine antifouling based on nanomaterial-enhanced functional PDMS coatings 基于纳米材料增强型功能性 PDMS 涂层的海洋防污先进策略

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.12.005

{"title":"Advanced strategies for marine antifouling based on nanomaterial-enhanced functional PDMS coatings","authors":"","doi":"10.1016/j.nanoms.2023.12.005","DOIUrl":"10.1016/j.nanoms.2023.12.005","url":null,"abstract":"<div>Marine biofouling seriously affects human marine exploitation and transportation activities, to which marine antifouling (AF) coatings are considered to be the most cost-effective solution. Since the mid-20th century, human beings have dedicated their efforts on developing AF coatings with long cycle and high performance, leading to a large number of non-target organisms' distortion, death and marine environmental pollution. Polydimethylsiloxane (PDMS), is considered as one of the representative environment-friendly AF materials thanks to its non-toxic, hydrophobic, low surface energy and AF properties. However, PDMS AF coatings are prone to mechanical damage, weak adhesion strength to substrate, and poor static AF effect, which seriously restrict their use in the ocean. The rapid development of various nanomaterials provides an opportunity to enhance and improve the mechanical properties and antifouling properties of PDMS coating by embedding nanomaterials. Based on our research background and the problems faced in our laboratory, this article presents an overview of the current progress in the fields of PDMS composite coatings enhanced by different nanomaterials, with the discussion focused on the advantages and main bottlenecks currently encountered in this field. Finally, we propose an outlook, hoping to provide fundamental guidance for the development of marine AF field.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 375-395"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000910/pdfft?md5=10f245e3b81e9cbd2008044b731590ae&pid=1-s2.0-S2589965123000910-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139414560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Defect-induced synthesis of nanoscale hierarchically porous metal-organic frameworks with tunable porosity for enhanced volatile organic compound adsorption 缺陷诱导合成具有可调孔隙率的纳米级分层多孔金属有机框架，以增强挥发性有机化合物吸附能力

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.10.001

{"title":"Defect-induced synthesis of nanoscale hierarchically porous metal-organic frameworks with tunable porosity for enhanced volatile organic compound adsorption","authors":"","doi":"10.1016/j.nanoms.2023.10.001","DOIUrl":"10.1016/j.nanoms.2023.10.001","url":null,"abstract":"<div>Nanoscale hierarchically porous metal-organic frameworks (NH-MOFs) synergistically combine the advantages of nanoscale MOFs and hierarchically porous MOFs, resulting in remarkable characteristics such as increased specific surface area, greater porosity, and enhanced exposure of active sites. Herein, nanoscale hierarchically porous UIO-66 (UIO-66_X) was synthesized using a defect-induced strategy that employed ethylene diamine tetraacetic acid (EDTA) as a modulator. The introduced EDTA occupies the coordination sites of organic ligands, promoting the formation and growth of UIO-66 crystal nuclei and inducing defects during synthesis. The as-synthesized UIO-66_X crystals exhibit a uniform distribution with an average size of approximately 100 nm. In addition, the total pore volume attains a remarkable value of 0.95 cm3 g−1, with mesopores constituting 36.8 % of the structure. Furthermore, the porosities of UIO-66_X can be easily tuned by controlling the molar ratio of EDTA/Zr4+. In addition, the as-synthesized UIO-66_X exhibits excellent adsorption capacities for n-hexane (344 mg g−1) and p-xylene (218 mg g−1), which are 44.5 % and 27.5 % higher than those of conventional UIO-66, respectively. Finally, the adsorption behavior of n-hexane and p-xylene molecules in UIO-66_X was investigated using density functional theory simulations.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 467-474"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000624/pdfft?md5=4c8140eba59468d4a1bc50e0cc143c85&pid=1-s2.0-S2589965123000624-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135664375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A nano-sheet graphene-based enhanced thermal radiation composite for passive heat dissipation from vehicle batteries 用于汽车电池被动散热的纳米片石墨烯增强热辐射复合材料

IF 9.9 2区材料科学

Nano Materials Science Pub Date : 2024-08-01 DOI: 10.1016/j.nanoms.2023.11.005

{"title":"A nano-sheet graphene-based enhanced thermal radiation composite for passive heat dissipation from vehicle batteries","authors":"","doi":"10.1016/j.nanoms.2023.11.005","DOIUrl":"10.1016/j.nanoms.2023.11.005","url":null,"abstract":"<div>In response to thermal runaway (TR) of electric vehicles, recent attention has been focused on mitigation strategies such as efficient heat dredging in battery thermal management. Thermal management with particular focus on battery cooling has been becoming increasingly significant. TR usually happened when an electric vehicle is unpowered and charged. In this state, traditional active battery cooling schemes are disabled, which can easily lead to dangerous incidents due to loss of cooling ability, and advanced passive cooling strategies are therefore gaining importance. Herein, we developed an enhanced thermal radiation material, consisting of ∼1 μm thick multilayered nano-sheet graphene film coated upon the heat dissipation surface, thereby enhancing thermal radiation in the nanoscale. The surface was characterized on the nanoscale, and tested in a battery-cooling scenario. We found that the graphene-based coating's spectral emissivity is between 91 % and 95 % in the mid-infrared region, and thermal experiments consequently illustrated that graphene-based radiative cooling yielded up to 15.1 % temperature reduction when compared to the uncoated analogue. Using the novel graphene surface to augment a heat pipe, the temperature reduction can be further enlarged to 25.6 %. The new material may contribute to transportation safety, global warming mitigation and carbon neutralization.</div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 4","pages":"Pages 443-455"},"PeriodicalIF":9.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000739/pdfft?md5=f10cc52a2e01a76556688c2ffc83b755&pid=1-s2.0-S2589965123000739-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138495179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0