Surfaces and Interfaces最新文献

{"title":"Carbon fiber with superhydrophilic interface as metal-free air electrode for all-solid-state Zn-air batteries","authors":"Yuan Zhou ,&nbsp;Zeyi Li ,&nbsp;Xiao Cheng ,&nbsp;Yanxiao He ,&nbsp;Nianbing Zhong ,&nbsp;Xuefeng He ,&nbsp;Qiao Lan","doi":"10.1016/j.surfin.2024.105310","DOIUrl":"10.1016/j.surfin.2024.105310","url":null,"abstract":"<div><div>The burgeoning interest in all-solid-state Zn-air batteries as next-generation power sources for portable electronics is conspicuous. A pivotal aspect of their advancement lies in developing cost-effective, metal-free air electrodes with high-activity bifunctional oxygen electrocatalysts. This study introduces a superhydrophilic carbon fiber modified with oxygen functional groups (CF-O), achieved through a straightforward one-step activation treatment. Comparative analyses reveal that the CF-O electrode surpasses pristine CF in oxygen reduction and evolution reaction (OER and ORR) activity due to enhanced active sites and expedited ion transport. Notably, the OER/ORR performance depends on the type and quantity of oxygen functional groups. The optimal CF-O electrode displays an OER overpotential of 365.6 mV at 10 mA cm^-2 and an ORR peak potential of 0.683 V. Utilizing the CF-O sample as the air electrode in all-solid-state Zn-air batteries yields an open-circuit voltage of 1.28 V and a peak volume power density of 82.8 mW cm^-3. Furthermore, endurance testing reveals a charge/discharge voltage gap of 1.07 V at a current density of 1.0 mA cm^-2 after 30 cycles. This facile and economical fabrication approach for metal-free air electrodes holds promise for advancing high-performance metal-air batteries compared to various existing techniques.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552358","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":"Enhanced electrochemical performance of K0.67[Ni0.3Mn0.6Co0.1] O2 as a cathode material for secondary K-Ion batteries: Improved K-Ion insertion and reduced charge transfer barrier","authors":"Shitanshu Pratap Singh,&nbsp;Anupam Patel,&nbsp;Anurag Tiwari,&nbsp;Samriddhi,&nbsp;Vikas Yadav,&nbsp;Raghvendra Mishra,&nbsp;Rupesh Kumar Tiwari,&nbsp;Rajendra Kumar Singh","doi":"10.1016/j.surfin.2024.105316","DOIUrl":"10.1016/j.surfin.2024.105316","url":null,"abstract":"<div><div>Potassium-ion batteries, with their high operating voltage and cost-efficiency, emerged as promising contenders for large-scale energy storage system. Nevertheless, the practical application is hindered by the significant challenges of achieving high capacity and good rate capability in cathodes. Herein, a novel layered oxide cathode, K_0.67[Ni_0.3Mn_0.6Co_0.1] O₂ (KNMCO), has been synthesized via solid-state (S-KNMCO) and co-precipitation (C-KNMCO) routes. The X-Ray diffraction (XRD) peaks of KNMCO are identified in R3 m space group and well-indexed to hexagonal unit cell. The FE-SEM shows non-spherical morphologies for both samples. Additionally, high-resolution transmission electron microscopy (HR-TEM) images of the synthesized cathode materials shows the interlayer spacing of S-KNMCO is higher than that of C-KNMCO. Furthermore, the electrochemical performance of S-KNMCO and C-KNMCO is characterized using K-metal as anode and electrolyte KPF₆ in EC/DEC (1:1, v/v). The S-KNMCO and C-KNMCO exhibit the maximum specific discharge capacity of ∼101 mAhg^-1 and ∼66 mAhg^-1 at the current rate of C/20 respectively. Additionally, these cells show the good rate capability and coulombic efficiency (∼94%). This research offers novel perspectives on the development of cathode substances for KIBs.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536136","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 effect of ZnO nanoparticles morphology on the barrier and antibacterial properties of hybrid ZnO/graphene oxide/montmorillonite coatings for flexible packaging","authors":"Emre Alp ,&nbsp;Federico Olivieri ,&nbsp;Martina Aulitto ,&nbsp;Rachele Castaldo ,&nbsp;Patrizia Contursi ,&nbsp;Mariacristina Cocca ,&nbsp;Gennaro Gentile","doi":"10.1016/j.surfin.2024.105307","DOIUrl":"10.1016/j.surfin.2024.105307","url":null,"abstract":"<div><div>The need for eco-friendly packaging solutions is continuously increasing, with several materials being investigated to develop functional coatings able to contrast food degradation due to oxidation and bacterial growth. In this work, ZnO nanoparticles (NPs) with various morphology and size from spherical to hexagonal, dots-like and platelets-like shape, were synthesized. Hybrid coatings constituted by ZnO NPs, graphene oxide (GO) and montmorillonite (MMT) were applied onto flexible polyethylene (PE) in order to exploit the 2D nanomaterials self-assembly ability and gas barrier properties and to synergistically combine these functionalities with the antibacterial activity of ZnO. The effect of ZnO NPs morphology and the ZnO/GO/MMT relative content was explored to obtain nanostructured coatings with optimized functionality. Results evidence a correlation between oxygen permeability and microbial proliferation, allowing to reach 88 % of reduction of PE oxygen permeability and about 60 % inhibition towards Gram-positive (i.e. <em>Weizmannia coagulans</em>) and Gram-negative (i.e. <em>Escherichia coli</em>) microorganisms.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552304","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}

{"title":"Centimeter-scale free-standing flexible 3C-SiC films by laser chemical vapor deposition","authors":"Song ZHANG ,&nbsp;Mingqi JIN ,&nbsp;Chitengfei ZHANG ,&nbsp;Qingfang XU ,&nbsp;Rong TU","doi":"10.1016/j.surfin.2024.105303","DOIUrl":"10.1016/j.surfin.2024.105303","url":null,"abstract":"<div><div>Flexible 3C-SiC is considered a promising material for durable and adaptable electronics serving in harsh environments due to its chemical stability, high electron mobility, and wide bandgap. However, the application of flexible 3C-SiC is limited by the difficulty in producing large-scale free-standing films with excellent mechanical properties. Herein, centimeter-scale (1.5 × 1.2 cm²) free-standing 3C-SiC films were obtained through a two-step route: depositing SiC films on Si substrates via laser chemical vapor deposition (LCVD), followed by wet-etching to remove the substrates. The high-power, continuous laser promotes the growth of SiC films with a high density of twin boundaries and stacking faults, along with strong interfacial bonding at grain boundaries, which suppresses crack initiation and propagation, thereby enhancing elastic deformability. The as-prepared free-standing SiC film with thickness of 200 nm withstands a maximum tensile strain of 7.35 % and a maximum bending curvature of 1 mm^-1, demonstrating excellent flexibility, which is comparable to that of the reported SiC nano-spring. Moreover, no catastrophic failure is observed after the film undergoes 1500 bending-releasing cycles, verifying its robust mechanical durability. This study lays a foundational groundwork for the development and prospective commercialization of flexible devices, which are in urgent need for large-scale, wide-bandgap inorganic flexible materials.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552022","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":"Magnetic recyclable MoS2/Fe3O4 piezoelectric catalysts for highly efficient degradation of aqueous pollutants","authors":"Huanggen Yang ,&nbsp;Xiangyi Xiao ,&nbsp;Hao Wu ,&nbsp;Mang Lu ,&nbsp;Duofu Li ,&nbsp;Yan Sui ,&nbsp;Ningqiang Zhang","doi":"10.1016/j.surfin.2024.105271","DOIUrl":"10.1016/j.surfin.2024.105271","url":null,"abstract":"<div><div>As a new type of advanced oxidation processes, simple and easy to implement with less energy consumption, piezoelectric catalytic degradation technology has attracted much attention in recent years. However, the low degradation activity of piezoelectric catalysts and the problem of recycling limit their wide application in the actual degradation of wastewater. In this work, a series of MoS₂/Fe₃O₄ nanocomposite with different MoS₂ to Fe₃O₄ mole ratios were prepared using a facile two-step hydrothermal-precipitation method. The piezocatalytic performance of the obtained composite was investigated through piezocatalytic degrading azo-dye methylene blue (MB) and diclofenac sodium (DCF) in artificial solution, as well as antibiotic resistance genes (ARGs) in swine wastewater. The optimum mole ratio of MoS₂ to Fe₃O₄ was 1:1, by which MB degradation was completed in 6 min with a pseudo-first-order rate constant as high as 0.445 min^-1, which was about 2.2 times that of pure MoS₂ (0.202 min^-1). Moreover, the hybrid material displayed excellent reusability and good stability. The MoS₂/Fe₃O₄ piezocatalytic system can also efficiently degrade both DCF (100 % removal in 15 s) and ARGs (&gt; 99 % in 8 min).The electron paramagnetic resonance characterization and free radical scavenging experiments display that ^•OH and ^•O₂^– were the major active free radicals in the piezocatalysis process and ^•OH was the dominant species. The piezoresponse force microscopy characterization and electrochemical test demonstrate that MoS₂/Fe₃O₄ has higher piezoelectric response than pure MoS₂, of which a plausible mechanism is proposed.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536135","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":"SO2 capture using nanostructured materials: Recent developments, challenges, and future outlooks","authors":"Tasneem M. Abdalla ,&nbsp;Mawadda A. Adam ,&nbsp;Sagheer A. Onaizi","doi":"10.1016/j.surfin.2024.105272","DOIUrl":"10.1016/j.surfin.2024.105272","url":null,"abstract":"<div><div>The release of air pollutants from anthropogenic sources is the main cause of several health and environmental problems. Thus, the development of efficient and cost-effective approaches to capture toxic gaseous pollutants such as sulfur dioxide (SO₂) is becoming imperative as environmental awareness increases and regulations get more stringent. Nanostructured materials such as metal organic frameworks (MOFs), zeolitic imidazolate frameworks (ZIFs), carbon-based nanomaterials, transition metals and their oxides, and layered double hydroxides (LDHs<strong>)</strong> are attractive options for removing SO₂ from gaseous streams due to their unique properties including large surface area and adjustable pore size, which result in their high efficacy in SO₂ capture. This review article provides a comprehensive overview of recent developments in SO₂ capture using these nanostructured materials. After a brief introduction to the topic, different characterization and synthesis methods for the above-mentioned nanostructured materials have been briefly reviewed. Additionally, different recent studies of capturing SO₂ using these nanostructured materials have been thoroughly discussed. Temperature, pressure, humidity, and the presence of other gases are all investigated as factors influencing the effectiveness and selectivity of SO₂ capture. Furthermore, issues and challenges emerging from the applications of these nanostructured materials for SO₂ capture have been highlighted. This article also proposes future research work, including integration, synergistic effects, and the production of hybrid materials, among others, to enhance the SO₂ adsorption process. Accordingly, this review article could serve as a reference source for assessing and, subsequently, enhancing and optimizing the performance of nanostructured materials for effective SO₂ capture.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560729","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":"Enhanced sensitivity and selectivity of ZnSe/PANI nanocomposite for Low-ppm NO2 detection at room temperature gas sensor application","authors":"R. Abimaheshwari ,&nbsp;R. Abinaya ,&nbsp;M. Navaneethan ,&nbsp;S. Harish","doi":"10.1016/j.surfin.2024.105295","DOIUrl":"10.1016/j.surfin.2024.105295","url":null,"abstract":"<div><div>The utilization of <em>n</em>-<em>p</em> composite-based gas sensors has garnered substantial interest within the field of gas sensing. This heightened attention can be attributed to the remarkable band alignment of the constituent materials which results in superior charge transfer rate, increased gas interaction sites and reduced optimum operating temperature. In this work, <em>n</em>-ZnSe/<em>p</em>-PANI composites were prepared by simple hydrothermal technique. The obtained X-ray diffraction pattern confirms the phase formation ZnSe, PANI and ZnSe/PANI composites. The pure ZnSe exhibits a sensing performance at a higher operating temperature of 100 °C, whereas ZnSe/PANI composite sample demonstrates an improved sensing response at 30 °C. Notably, the 20 wt.% composite sample (ZnSe–P2) achieved a maximum sensing response of 77 % towards 20 ppm of NO₂ gas molecule. Additionally, the sensor exhibits the response time (T_res) of 112 s and recovery time (T_rec) of 648 s, at an operating temperature of 30 °C. It also shows better stability, reproducibility and specific selectivity towards NO₂ gas molecule. The superior sensing behavior of the ZnSe-P2 sensor can be ascribed to the development of a depletion region in the interface of ZnSe/PANI composites, which improved the charge transfer rate and increased the number of reactive sites. Therefore, the formation of <em>n</em>-<em>p</em> inorganic-organic composite strategy offers an effective approach for detecting NO₂ gas molecules at lower temperature of 30 °C.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571615","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":"Facile modification of TiO2 as S-Scheme multifunctional materials for environmental protection and energy-storage applications","authors":"Chandravadhana Arumugam ,&nbsp;Venkatramanan Kannan ,&nbsp;Vaithinathan Karthikeyan ,&nbsp;Vaskuri C.S. Theja ,&nbsp;Sirikanjana Thongmee ,&nbsp;Choon Kit Chan ,&nbsp;Nandakumar Velu ,&nbsp;Dong-Eun Lee ,&nbsp;Gopalan Anantha-Iyengar ,&nbsp;A.L. Roy Vellaisamy","doi":"10.1016/j.surfin.2024.105298","DOIUrl":"10.1016/j.surfin.2024.105298","url":null,"abstract":"<div><div>This paper reports a simple one-step modification of commercial TiO₂ with a conducting polytrimethoxyslilypropyl aniline (PTMSPA, a polyaniline derivative having silyl networks) to have multi-functional (photocatalytic, optical, pseudocapacitive, hydrophobic, porous, antibacterial, and electromagnetic interference shielding (EMI)) properties and demonstrates associated applications. We present the S-Scheme heterojunction (SHJ) formation between TiO₂ and PTMSPA through band position alignments and designate the resultant TiO₂ - TiO_2- based SHJ multifunctional materials as MF-TSSM. The internal electric field that is generated at the interface facilitates the transportation of the photogenerated electron transfer . The XRD pattern of MF-TSSM exhibits mainly the peaks of anatase TiO₂. The TEM image of MF-TSSM indicates that the TiO₂ particles are spherical in shape with sizes showing variations in diameters ranging from 60 nm to 250 nm depending on the experimental conditions of preparation and TiO2 particles are homogeneously distributed within the PTMSPA matrix. The optical energy band gap of MF-TSSM is 1.60 eV, a much lower value than PTMSPA (3.02 eV), suggesting that the composite formation between TiO₂ and PTMSPA. The contact angle of MF-TSSM is significantly increased to 47.1 ° from 8.0 of TiO₂, informing the increase of hydrophobic characteristics. The rate constant (k) for methylene blue photodegradation was 0.030 min-1, and 0.010 min-1 for MF-TSSM and pristine TiO₂, respectively, The MF-TSSM composite exhibits a higher specific capacitance value (28.7 F/g) than TMSPA (21.1 F/g). At a frequency of 0.42 THz, MF-TSSM and PTMSPA exhibit return loss features indicating good EMI shielding performance. The MF-TSSM has been tested against two different Gram-positive and Gram-negative bacterial strains. The nanoparticles were evaluated at doses of 10, 20, 40, and 80 µg/ml. The results indicated that Klebsiella pneumoniae demonstrated a greater zone of inhibition, ranging from 9 mm at 10 µg/ml to 23 mm at 80 µg/ml, indicating increased susceptibility. Pseudomonas aeruginosa exhibited reduced inhibition zones, ranging from 10 mm at 10 µg/ml to 14 mm at 80 µg/ml, indicating increased resistance. The excellent effectiveness of MF-TSSM against various Gram-positive and Gram-negative pathogenic bacteria is explained by the interaction between reactive oxygen species and the cellular components of the bacteria as well the electrostatic interaction arising between positive charges in TMSPA and negative charges in the cell components, resulting in notable cytotoxicity and damage to the bacterial cells. The research underscores the capability of these modified TiO₂ nanoparticles in addressing bacterial infections, with efficiency differing by bacterial strain.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536132","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":"Role of zwitterionic lipid headgroups on monolayer formation and interfacial dilatational rheology in binary mixtures of phospholipids and cholesterol: A pendant drop tensiometer study","authors":"Andrew R. White ,&nbsp;Monica Iepure ,&nbsp;Jonathan Arredondo ,&nbsp;Maryam Darwish ,&nbsp;Chidubem Onyeagoro ,&nbsp;Younjin Min","doi":"10.1016/j.surfin.2024.105294","DOIUrl":"10.1016/j.surfin.2024.105294","url":null,"abstract":"<div><div>The complex composition of biological membranes, comprising a diverse array of lipids with unique moieties, has garnered increased attention due to the recognized roles of lipids in membrane stability and biological processes. Even subtle changes in phospholipid headgroups and fatty acyl tails profoundly affect the formation and interfacial dynamics of lipid monolayers at the air-water interface. However, the molecular-level understanding of their intermolecular forces and interactions during these processes, directly relating to the lipid chemical structures, is not well-explored. To better understand these complex physicochemical phenomena, simplified model monolayers with precise control over lipid types and compositions are utilized. In this study, we employ the pendant drop tensiometer technique to investigate the formation and interfacial rheology of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine (DPPE) monolayers, with varying amounts of cholesterol (CHOL) for the first time. These two phospholipids, with identical C16:0 acyl tails but different headgroups, exhibit marked differences in their interfacial interactions with CHOL and water molecules, consequently affecting monolayer formation and rheology. In the absence of CHOL, DPPE monolayers typically display a lower dilatational modulus than DPPC, attributed to increased headgroup hydration. However, introducing CHOL reverses this trend, resulting in stiffer DPPE-CHOL monolayers compared to DPPC-CHOL. With CHOL, we observe its well-known condensation effect on DPPC monolayers, yet for DPPE monolayers, both condensation and expansion effects are noted, contingent on CHOL amount. We anticipate this work will not only deepen our fundamental understanding of the structure-composition-property relationships in lipid molecules but also provide a robust foundation for comprehending more intricate biological systems.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535694","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":"A non-contact thermocapillary driving system at the gas-liquid interface","authors":"Jianhao Liu ,&nbsp;Yangyang Zhao ,&nbsp;Yinshui Liu ,&nbsp;Xinping Zhou","doi":"10.1016/j.surfin.2024.105288","DOIUrl":"10.1016/j.surfin.2024.105288","url":null,"abstract":"<div><div>Non-contact driving technology is widely utilized in various fields due to its advantages of being non-contact, wear-free, and low noise. Thermocapillary driving is an effective approach for non-contact driving at gas-liquid interfaces. When a temperature gradient exists at the gas-liquid interface, it generates a surface tension gradient, which drives the movement of micro-objects at the interface. This research proposes a system that utilizes an array of thermoelectric coolers (TECs) as a heat source, which changes the local temperature at the gas-liquid interface and generates surface tension gradients for driving the movement of interface objects. Experimental results demonstrate that foam particles with a diameter of 0.5 mm can achieve a maximum moving speed of 2.1 mm/s. Furthermore, the system can control multiple micro-objects at the gas-liquid interface for self-assembly. We have also developed a miniature biomimetic water strider robot, this system can drive the robot to perform linear and turning movements at the gas-liquid interface. This system provides a novel approach for non-contact driving of gas-liquid interfaces.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535693","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}