Applied Surface Science最新文献

{"title":"Fabrication of copper-based two-tiered surface microstructures by picosecond laser micromachining in combination with electrodeposition for enhanced two-phase heat transfer","authors":"Ziqing Ouyang, Yongkang Yan, Yiqiang Long, Bingjun Luo, Zhengliang Su, Jiangyou Long","doi":"10.1016/j.apsusc.2024.162096","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162096","url":null,"abstract":"Multiscale copper-based surface microstructures are required in miniaturized two-phase heat exchange devices. In this study, we propose a method that combines picosecond laser micromachining and electrodeposition to prepare copper-based two-tiered surface microstructures. The surface structures consist of periodic mini-grooves covered by dense microcones. The mini-grooves, prepared using ultrafast laser micromachining, offer a superior capillary transport performance. On the other hand, the microcone structures, prepared by electrodeposition, provide more effective nucleation sites for liquid–vapor phase changes. Compared to single-tiered mini-groove structures, the minigroove-microcone composite structures demonstrate an 8.2% increase in critical heat flux (CHF) and a 21–58% increase in heat transfer coefficient (HTC) during capillary-fed boiling tests. The method presented in this study introduces a new approach for fabricating high-performance wick structures suitable for ultrathin two-phase heat exchange devices.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"86 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The crucial influence of Al on the high-temperature oxidation resistance of Ti1-xAlxBy diboride thin films (0.36 ≤ x ≤ 0.74, 1.83 ≤ y ≤ 2.03)","authors":"B. Wicher, V. Rogoz, J. Lu, K. Kulikowski, A. Lachowski, S. Kolozsvári, P. Polcik, G. Greczynski","doi":"10.1016/j.apsusc.2024.162081","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162081","url":null,"abstract":"The high-temperature oxidation resistance and mechanical properties of Ti_1-xAl_xB_y (0.36 ≤ x ≤ 0.74, and 1.83 ≤ y ≤ 2.03) films grown by hybrid HiPIMS/DCMS co-sputtering from TiB₂ and AlB₂ targets at substrate temperatures (<180 °C) are studied. The air-annealing experiments conducted at temperatures ranging from 700 to 900 °C reveal a strong correlation between the starting Al concentration and the oxidation resistance. Low Al content films (x ≤ 0.49 ± 0.03 in the as-deposited state) show higher oxidation rates and develop B-depleted porous oxide scales as the original film is consumed. In contrast, oxides growing on top of high-Al content films (x ≥ 0.58 ± 0.03) are compact, composed of amorphous alumina (Al₂O₃) and borate (Al₁₈B₄O₃₃), which passivate the surface against oxidation effectively. Oxide scales on films with x ≥ 0.58 are, on average, 60 % harder and have 18 % higher elastic moduli. The hardest scale grew on the Ti_0.42Al_0.58B_1.87 film, with the nanoindentation hardness of 27.3 ± 2.7 GPa, which is comparable to that of as-deposited TiAlN, used widely for high-temperature wear protection. Electron microscopy also shows that for x ≥ 0.58 ± 0.03, the oxide scales adhere well to the bottom unoxidized portions of Ti_1-xAl_xB_y film, which is explained by a better match of the respective thermal expansion coefficients.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"86 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laser-induced S-doped carbon on flexible polycarbonate substrate for electromagnetic interference shielding","authors":"Mahtab Eslamipanah, Babak Jaleh, Mohammad Reza Karami, Kyong Yop Rhee","doi":"10.1016/j.apsusc.2024.162097","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162097","url":null,"abstract":"Biomass-derived carbon structures are attractive candidates for developing electromagnetic (EM)-wave-shielding materials because of their stability and unique porous structures. Lignin is the second-most abundant biomass that can be converted to porous carbon structures by using different methods. Herein, laser writing/patterning was employed to prepare lignin-derived S-doped carbon on a flexible polycarbonate substrate (C/PC) for EM wave shielding. An ultrathin carbon area (thickness of ∼ 20 µm) was formed on the flexible PC after laser processing, and its average surface resistance was 50.5 Ω. The performance of the prepared C/PC as an EM-wave-shielding material was examined in the X-band. Most of the incident EM waves can be reflected through S-doped carbon surface and remaining waves can be absorbed. The total shielding effectiveness (SE_T) attained 32.7 dB at 9.6 GHz when three layers of carbon were used as the shielding material; the absorption effectiveness (SE_A) values were higher than the reflection effectiveness (SE_R) values throughout the X-band. This result indicated that the presence of porous conductive carbon skeletons can effectively provide surface reflections and facilitate multiple reflections and scattering of the incident EM waves Our investigation provides a rapid and easy synthesis method for designing EM-wave-shielding materials based on lignin-derived porous carbon.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"13 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of AlN interlayer thickness on thermal conductances of GaN epilayer and GaN/SiC interface in GaN-on-SiC heterostructures","authors":"Luhua Wang, Zhongyin Zhang, Xujun Su, Jing Zhou, Jingjing Chen, Zhiqiao Li, Guo Chang, Songyuan Xia, Tingting Yin, Mutong Niu, Jie Zhu, Dawei Tang, Ke Xu","doi":"10.1016/j.apsusc.2024.162106","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162106","url":null,"abstract":"The temperature rise in GaN-on-SiC based high electron mobility transistors (HEMTs) is firmly dependent on the thermal conductivity (<em>k</em>) of GaN epilayer and the interfacial thermal conductance (<em>G</em>) between GaN and SiC. The AlN buffer is usually utilized during the heteroepitaxial growth of GaN on SiC substrate, while the effects of its thickness on <em>k</em> and <em>G</em> are still not clear. In this study, the GaN/AlN/SiC multilayer structure is prepared by metal–organic chemical vapor deposition, and aiding by time-domain thermoreflectance, we detect how the thickness of AlN interlayer influences <em>k</em> and <em>G</em>. The results reveal that the AlN interlayer evolves from serrated island shape to smooth planar form with increasing its thickness from 13 to 104 nm, which induces that the tensile stress of the subsequently grown GaN firstly decreases and then increases, giving a minimum value of 339 MPa at 52 nm-thick AlN. Consequently, a maximal <em>k</em> of 150 W m⁻¹ K⁻¹ for the GaN epilayer is achieved. Moreover, the AlN interlayer is beneficial to the enhancement of <em>G</em> due to the improved overlap of phonon density of states, and an increase of <em>G</em> by up to 64 % can be realized via an insertion of 104 nm-thick AlN, which could be the consequence of both atomically smooth interfaces and the improved crystal quality of thicker AlN. The findings clearly manifest the effect of AlN interlayer thickness on the <em>k</em> and <em>G</em> of GaN/AlN/SiC structures, which provides guidelines for preparation of multilayer structures helping to minimize the thermal resistance of HEMTs.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"144 1 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of exfoliated graphite-polypyrrole composites as active electrode materials for the detection of dopamine","authors":"Gintare Rimkute, Rasa Pauliukaite, Gediminas Niaura, Jurgis Barkauskas, Justina Gaidukevic","doi":"10.1016/j.apsusc.2024.162107","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162107","url":null,"abstract":"In this study, exfoliated graphite-polypyrrole (GPPy) composites were synthesized using three distinct graphite precursors featuring grain sizes of &lt;50 µm, ≥149 – ≤840 μm, and 2000 µm. Graphite precursors underwent intercalation using sulfuric acid and potassium periodate oxidizer and were annealed at 800 °C to obtain exfoliated graphite (EG). During the wet-synthesis procedure, EG was further modified with the conductive polymer polypyrrole (PPy) to achieve GPPy samples. While GPPy composites have been widely studied for their application in energy storage devices due to their advantageous properties, their potential in electrochemical sensors has received limited attention. This lack of investigation represents a significant gap in current research, especially considering the growing need for sensitive and selective detection devices in medical diagnostics. In this work, the prepared GPPy samples were studied as active electrode materials for the detection of dopamine. Raman spectroscopy, FTIR, and XPS confirmed successful nitrogen incorporation into the graphitic structure after PPy modification. In addition, the sample obtained from the medium-size graphite grains (GPPy_2) had the highest elemental nitrogen content (5.12 at.%), with 15.16 % as graphitic-N, known to improve electrocatalytic activity. Electrochemical investigations revealed that the GPPy_2/GCE sensor demonstrated the most promising analytical parameters, including high sensitivity (2468 µA<!-- --> <!-- -->mM⁻¹ <!-- -->cm⁻²) and a low limit of detection value of 34 nM for the dopamine analyte. Therefore, our study suggests that GPPy-modified sensors offer a simple and cost-effective manufacturing approach, making them promising candidates as a highly sensitive tool for the detection of the neurotransmitter dopamine.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"5 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scalable flexible electrochromic devices with WO3-Based ion storage layer for enhanced optical modulation and stability","authors":"Ade Satria Saloka Santosa, Nurul Kusuma Wardani, Muh Fadhil Albab, Muhammad Jahandar, Jinhee Heo, Dong Wook Chang, Soyeon Kim, Dong Chan Lim","doi":"10.1016/j.apsusc.2024.162101","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162101","url":null,"abstract":"Photo-electrochemical stability, rapid switching time, and mechanical durability are key factors in achieving high-performance flexible and large-area electrochromic (EC) devices. However, the typically used counter electrode of indium tin oxide (ITO) are prone to degradation after repeated redox cycling and reiterative bending stress. This study introduces a heterogeneous structure that incorporates modified poly(3,4-ethylenedioxythiophene) (m-PEDOT) as the organic electrochromic material and a tungsten trioxide (WO₃) film in the counter electrode of ITO, which serves as both an ion storage layer and a protective layer. The WO₃-based EC devices achieved a maximum optical modulation (ΔT) of 51 % at 631 nm, significantly higher than the 17 % (ΔT) observed in devices without WO₃. Additionally, the device demonstrated fast switching times of 1.2 s for bleaching and 6.3 s for coloring, with a high coloring efficiency of 474 cm²/C. Durability tests revealed a 98 % recovery in optical modulation after 500 cycles, and strong mechanical stability after 100 bending cycles. The fabrication of a 1170 cm² flexible device confirms the practical viability of this approach, enhancing both electrochemical and optical properties for large-scale applications such as smart windows.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"243 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shear-banding dynamic and self-repair mechanism of CuZr metallic glass subjected to cyclic nanoindentation: Experiment and molecular dynamic simulation","authors":"Chi Wang, Jiaxin Yu, Jianping Lai, Bing Wang, Fan Zhao, Zhenghao Jiang, Zhengbing Xiao","doi":"10.1016/j.apsusc.2024.162105","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162105","url":null,"abstract":"Although metallic glasses (MGs) exhibit exceptional mechanical properties, their practical applications are often hindered by operational conditions that induce cyclic stress and strain fluctuations, leading to sudden failure through rapid shear-banding. Combining experimental tests and molecular dynamic (MD) simulations, we find that although cyclic stress induces the accumulation of shear instability and promotes shear bands (SBs) growth, a unique ‘self-repair’ process occurs inside mature SBs evidenced by an obvious decrease in potential energy and increase in stabilized cluster connections. The unique self-repair behavior is elaborated by coupling the STZ-vortex model and medium-range order (MRO) clusters defined by the gradient atom stacking structure, which suggests that rigid solid-like clusters acting as the rotation center activate the inelastic deformation within surrounding atoms. Such shear-banding dynamic reveals that the self-repair event is caused by the transition from liquid-like atoms to opposite solid-like counterparts, which correlates strongly with enhancing face-sharing connections of MRO. These findings advance our understanding of structural evolution and plastic events during cyclic deformation of MGs.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"38 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dissociative mechanism from NH 3 and CH4 on Ni-doped graphene: Tuning electronic and optical properties","authors":"A. Aligayev, U. Jabbarli, U. Samadova, F.J. Dominguez–Gutierrez, S. Papanikolaou, Qing Huang","doi":"10.1016/j.apsusc.2024.162022","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162022","url":null,"abstract":"In this study, we employ a multi-scale computational modeling approach, combining density functional theory (DFT) and self-consistent charge density functional tight binding (SCC-DFTB), to investigate hydrogen (H&lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\" /&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"1.509ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -399.4 453.9 649.8\" width=\"1.054ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(0,-150)\"&gt;&lt;g is=\"true\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-32\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;span role=\"presentation\"&gt;&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt;) production and dissociation mechanisms from ammonia (NH&lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\" /&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"1.509ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -399.4 453.9 649.8\" width=\"1.054ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(0,-150)\"&gt;&lt;g is=\"true\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-33\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;span role=\"presentation\"&gt;&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;3&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt;) and methane (CH&lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\" /&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;4&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"1.509ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -3","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"8 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of yolk-shell structured microspheres consisting of heterogeneous nickel cobalt selenide@nickel cobalt selenite core–shell nanospheres and their application of anode materials for sodium-ion batteries","authors":"Yeong Beom Kim, Seong-Yong Jeong, Jung Sang Cho, Dong-Hee Lim, Yun Chan Kang, Gi Dae Park","doi":"10.1016/j.apsusc.2024.162094","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162094","url":null,"abstract":"Recently, heterostructure interfaced construction by binary metal selenide or metal oxide/metal selenide configuration has been attracting attention as anodes for sodium-ion batteries (SIBs). Especially, modification strategies such as formation of core–shell structure consisting of heterointerface can be a solution to resolve the issue of metal selenide electrodes. In this paper, new multicomponent metal compounds with heterointerface structure are firstly designed and suggested as anode for SIBs. The yolk-shell microsphere consisting of heterogeneous NiCo selenide@NiCo selenite core–shell nanospheres was prepared by spray pyrolysis and facile selenization and subsequently partial oxidation processes. NiCo selenide nanocrystals, which constitute the yolk-shell structure, are partially transformed into the NiCo selenide@NiCo selenite phase during the oxidation process. Notably, this process induces the nanoscale Kirkendall effect, leading to the transformation of the metal selenide nanocrystals into a hollow nanosphere morphology. As a result, the material adopts a hollow nanosphere structure with a NiCo selenide@NiCo selenite core–shell configuration. To the best of our knowledge, metal selenide@metal selenite core–shell configuration with hollow nanosphere is proposed for the first time. Heterointerface as well as yolk-shell structure consisting of hollow nanospheres showed synergistic effect for efficient and excellent sodium ion storage.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"42 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142816018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the preparation and corrosion resistance of integrated NiTi alloy bionic superhydrophobic corrosion-resistant surface based on additive manufacturing technology","authors":"Zhenglei Yu, Pengwei Sha, Yanan Yang, KongYuan Yang, Binkai Guo, Zhengzhi Mu, Yiwu Kuang, Xin Liu, Zezhou Xu, Yunting Guo, Zhenze Liu","doi":"10.1016/j.apsusc.2024.162048","DOIUrl":"https://doi.org/10.1016/j.apsusc.2024.162048","url":null,"abstract":"Wettable surfaces on metal substrates have garnered significant attention due to their critical role in aerospace and medical applications, particularly in enhancing corrosion resistance. However, achieving a transition in metal surface wettability often necessitates secondary processing of the substrate surface, which is typically limited to components with simple geometries. The direct fabrication of corrosion-resistant structures on complex component surfaces remains a considerable challenge. This paper proposes a novel method for the direct preparation of corrosion-resistant structures on intricate parts utilizing additive manufacturing technology, successfully fabricating three bionic corrosion-resistant structures. The results indicate that the bionic lotus leaf structure sample, with a height of 500 μm, exhibits the best corrosion resistance, demonstrating an order of magnitude improvement over the original sample and achieving the highest contact angle value of 150.1°. Notably, the bionic lotus leaf structure (<em>I</em>_corr = 9.8 ± 0.8 × 10⁻⁸ A/cm²) outperforms both the bionic cicada wing structure (<em>I</em>_corr = 1.2 ± 0.7 × 10^-6 A/cm²) and the bionic shark skin structure (<em>I</em>_corr = 1.7 ± 0.7 × 10⁻⁷ A/cm²) in terms of corrosion resistance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"21 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}