RSC Applied Interfaces最新文献

{"title":"Synthesis of a mixed-linker Ce-UiO-67 metal–organic framework†","authors":"V. Finelli, G. Mastronardi, N. G. Porcaro, M. Signorile, F. Bonino, P. Á. Szilágyi and S. Bordiga","doi":"10.1039/D4LF00278D","DOIUrl":"10.1039/D4LF00278D","url":null,"abstract":"<p >Ce-based metal–organic frameworks (MOFs) have recently gained scientific interest, since Ce is the most abundant rare-earth element in the Earth's crust and since their synthesis has some advantages, including first of all their redox activity, the high porosity of these crystalline materials, and Ce availability. In particular, Ce(<small>IV</small>)-based MOFs, such as Ce-UiO-66 and Ce-UiO-67, are synthesised under mild conditions. For most applications, the presence of functional groups in the frameworks is needed; in this context, linkers containing N-functionalities have been highlighted, as they allow for the incorporation of a large variety of metal cations. In order to insert N-functionalities for the sake of successive metal-functionalization of materials as Ce-UiO-67, we have successfully synthesised a mixed-linker version of this MOF, by incorporating 2,2′-bipyridine-5,5′-dicarboxylic acid together with the conventional biphenyl-4,4′-dicarboxylic acid linker; we have worked on a reproducible and upscalable procedure using benzoic acid as the modulator, without altering the original framework topology. Mixed-linker Ce-UiO-67 MOFs exhibit good thermal stability, high Brunauer–Emmett–Teller (BET) SSAs and microporosity. The pristine samples are highly stable if stored in a desiccator, as demonstrated by the preservation of their high crystallinity for at least 18 months.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 130-136"},"PeriodicalIF":0.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11487926/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142485107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dielectric-constant effects on the exciton dissociation and photovoltaic conversion efficiency of water-soluble green conducting polymers†","authors":"Xin Wei, Daniel Williams and Giovanni Fanchini","doi":"10.1039/D4LF00269E","DOIUrl":"https://doi.org/10.1039/D4LF00269E","url":null,"abstract":"<p >While the best strategy to design semiconducting polymers for organic photovoltaics (OPVs) is still debated, several reports link the performance of some such polymers to a high dielectric constant, with polythiophenes at the forefront of those studies. The use of the dielectric constant as a figure of merit to design OPVs will represent a game-changing strategy towards high photoconversion efficiency (PCE) if it is rigorously proven by a theoretical model on a specific OPV polymer with tunable susceptibility. Water-soluble poly[2-(3-thienyl)-ethoxy-4-butyl-sulfonate] (PTEB) is the ideal platform to test such a hypothesis, due to its properties that are tunable in liquid environments and are highly dependent on the pH of the aqueous solutions used to disperse it, in addition to offering a unique avenue toward fully water-processed, environmentally green OPVs. Here, we characterize a set of PTEB samples, assemble bulk heterojunction (BHJ) OPVs out of them, and develop a mean-field theory model explaining why the tunability of the optoelectronic properties of PTEB persists in the solid state, which is assigned to the different polarizability of the terminations of PTEB pendant groups that are stable in basic and acidic environments. Dielectric constants decreasing from <em>ε</em><small>_r</small> = 4.5 (in layers spun from solutions at pH = 4) to <em>ε</em><small>_r</small> = 2.9 (at pH = 10) are measured and shown to affect the operation of PTEB OPVs with bathocuproine (BCP) as an acceptor, increasing their PCE from 0.44% up to 2.8% at the highest value of <em>ε</em><small>_r</small>. Even if these figures are still relatively low over OPV polymers soluble in nonpolar solvents, they are the highest obtained to date for PTEB and, to the best of our knowledge, also for any other water-soluble polythiophenes, except for polythiophene particles previously processed in nonpolar solvents.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 137-149"},"PeriodicalIF":0.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00269e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-emissivity fine-tuning of efficient VO2-based thermochromic stacks with silver nanowire networks†","authors":"Amaury Baret, Ambreen Khan, Aline Rougier, Daniel Bellet and Ngoc Duy Nguyen","doi":"10.1039/D4LF00234B","DOIUrl":"https://doi.org/10.1039/D4LF00234B","url":null,"abstract":"<p >In response to the urgent need for environmentally sustainable alternatives to combat climate change, considerable attention has been directed towards the development of functional materials for energy management. Among these, thermochromic-based smart windows have emerged as a significant area of interest due to their ability to dynamically and passively regulate the amount of sunlight entering a building while maintaining consistently high visible transmittance. Additionally, low thermal emissivity is crucial for energy efficiency in cold climates. In this theoretical study, we numerically explore the application of silver nanowire networks as a low infrared emissivity coating to enhance the performance of VO<small>₂</small>-based thermochromic multilayer stacks. We propose a highly efficient thermochromic stack capable of achieving a luminous transmittance of 79% and a solar modulation ability of 15.7%, while simultaneously exhibiting an infrared emissivity as low as 8%. <em>Via</em> the addition of the Ag NW network, we show that it is also possible to reduce the emissivity of VO<small>₂</small> nanoparticle-based stacks up to 20% while keeping a FOM higher than 0.01, which we show is not possible by using a Ag thin film alone.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 94-103"},"PeriodicalIF":0.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00234b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the electronic structure and stability of epitaxially grown Sr-doped LaFeO3 perovskite alkaline O2 evolution model electrocatalysts†","authors":"Chuanmu Tian, Clément Maheu, Xiaochun Huang, Freddy E. Oropeza, Márton Major, Joachim Brötz, Marcus Einert, Wolfgang Donner, Kelvin Hongliang Zhang and Jan P. Hofmann","doi":"10.1039/D4LF00260A","DOIUrl":"https://doi.org/10.1039/D4LF00260A","url":null,"abstract":"<p >In this work, we have investigated the relationships between surface stability, electronic structure and O<small>₂</small> evolution reaction (OER) activity for epitaxial thin film La<small>_{1−<em>x</em>}</small>Sr<small>_<em>x</em></small>FeO<small>₃</small> (<em>x</em> = 0, 0.33, 0.8) model electrocatalysts before and after different electrochemical treatments. Cyclic voltammetry (CV) between +1.22 V and +1.92 V <em>vs.</em> RHE results in the continuous enhancement of OER performance of LaFeO<small>₃</small>, while for La<small>_0.67</small>Sr<small>_0.33</small>FeO<small>₃</small> and La<small>_0.2</small>Sr<small>_0.8</small>FeO<small>₃</small> a gradual decrease of OER performance with increasing number of CV cycles was observed. A combination of atomic force microscopy, X-ray diffraction and X-ray reflectivity reveals that the surfaces of La<small>_{1−<em>x</em>}</small>Sr<small>_<em>x</em></small>FeO<small>₃</small> (<em>x</em> = 0, 0.33, 0.8) undergo surface morphology changes during OER treatment. Synchrotron <em>ex situ</em> X-ray photoemission spectroscopy data show a gradual down-shift of the Fermi level (<em>E</em><small>_F</small>) of LaFeO<small>₃</small> with increasing number of CV cycles, while near edge X-ray absorption fine structure spectroscopy (NEXAFS) at the Fe L-edge and O K-edge shows the presence of surface Fe<small>⁴⁺</small> species as well as new hole states near the conduction band minimum upon electrochemical treatment, leading to a further enhancement of the electrochemical activity of LaFeO<small>₃</small>. The newly formed hole state in LaFeO<small>₃</small> that appeared after 3 CV cycles remained constant upon progressing OER treatment. On the contrary, the decrease of OER performance of La<small>_0.67</small>Sr<small>_0.33</small>FeO<small>₃</small> and La<small>_0.2</small>Sr<small>_0.8</small>FeO<small>₃</small> with increasing CV cycles is attributed to an up-shift of <em>E</em><small>_F</small> along with a decrease of Fe<small>⁴⁺</small> and hole state content after OER treatment. Furthermore, we found that the stability of the OER performance of La<small>_{1−<em>x</em>}</small>Sr<small>_<em>x</em></small>FeO<small>₃</small> is closely related to the leaching of Sr during OER, and the stability deteriorates with increasing Sr doping concentration in the pristine samples.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 122-129"},"PeriodicalIF":0.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00260a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal–organic frameworks as conductivity enhancers for all-solid-state lithium batteries†","authors":"Shruti Suriyakumar, Rohit M. Manoj, Sreelakshmy K. Jayaprakash, Sreelakshmi Anil Kumar, Keerthy P. Sudhakaran, Vinesh Vijayan and Manikoth M. Shaijumon","doi":"10.1039/D4LF00263F","DOIUrl":"https://doi.org/10.1039/D4LF00263F","url":null,"abstract":"<p >Li-ion batteries are nonpareil when it comes to the combination of high energy and power density, making them the most suitable technology for electric vehicles, portable electronics and so on. Among Li-ion conductors, NASICON-type electrolytes are among the promising candidates for all-solid-state lithium batteries. However, the conventional synthesis approaches involve time-consuming multi-step high-temperature densification. Herein, we report a simple, efficient, and cost-effective strategy to develop composite solid electrolytes by incorporating MOFs in LATP using a powder cold press approach. Here, we report composite solid electrolytes (CSEs) composed of LATP ceramic particles and metal–organic frameworks (MOFs) in a SCN–LiTFSI matrix. The highly tunable porous structure of MOFs facilitates ion movement and acts as promising building materials for solid-state Li-ion conductors. In this study, the morphology, conductivity, and electrochemical cycling of LATP and its composite combinations are very well explored. Further, LATP–MOF composite solid electrolytes are tested for Li-ion and Li–Se batteries in an all-solid-state configuration with a lithium–metal anode.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 6","pages":" 1436-1442"},"PeriodicalIF":0.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/lf/d4lf00263f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Defect-engineered graphitic carbon nitride on carbon cloth supports for the photoelectrocatalytic degradation of organophosphate pesticides†","authors":"Giacomo Marchiori, Roberta Seraglia, Gian Andrea Rizzi, Chiara Maccato, Mattia Benedet, Emanuela Callone, Sandra Dirè, Alberto Gasparotto and Davide Barreca","doi":"10.1039/D4LF00259H","DOIUrl":"https://doi.org/10.1039/D4LF00259H","url":null,"abstract":"<p >The effective degradation of persistent aqueous pollutants, such as fenitrothion (FNT), a widely used organophosphate pesticide, represents a major urgency for the protection of human health and the environment. In this regard, this study is focused on the fabrication of green photoelectrocatalysts based on graphitic carbon nitride (gCN), capable of generating hydrogen peroxide (H<small>₂</small>O<small>₂</small>) to trigger electro-Fenton processes for FNT degradation. In particular, electrophoretic deposition of gCN onto carbon cloth (CC) substrates was performed starting from gCN powders designed <em>via</em> thermal condensation of urea mixed with acetylacetone (AcAc). The resulting defect engineering promoted an improved gCN light harvesting capability and an enhanced separation of photogenerated charge carriers. The obtained supported materials featured an attractive electrochemical reactivity and operational stability, opening the door to their possible real-world end-use. The present work illustrates, as a proof-of-concept, the potential of gCN-based photoelectrocatalysts in water treatment technologies, offering a sustainable solution in a greener perspective to mitigate the environmental impact of hazardous pollutants.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 104-113"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00259h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of surface roughness and metal oxide nanoparticles on airframe with icephobic coatings†","authors":"Kate Yeadon, Edward P. C. Lai, Xiao Huang and Naiheng Song","doi":"10.1039/D4LF00279B","DOIUrl":"https://doi.org/10.1039/D4LF00279B","url":null,"abstract":"<p >Icephobic coatings represent a sustainable and cost-efficient technology for preventing hazardous ice buildup across airframe surfaces. However, commercially available icephobic coatings still lack the metrics required for aircraft applications. Cyclic voltammetry is an electrochemical analysis technique that can detect ice formation by providing a distinct oxidation current response to the phase change. In this study, the technique was used to compare individual surface temperatures at water freezing across a variety of icephobic coatings on airframe surfaces that were roughened by sand blasting with alumina and modified by zinc oxide or neodymium oxide nanoparticles. The effect of sand blasting alone on delayed water freezing was marginal due to the self-leveling properties of icephobic coatings. However, addition of metal oxide nanoparticles delayed the formation of ice on the icephobic coatings. These findings provide new insight into the mechanism governing freezing point shift for the benefit of aircraft flying under extreme weather conditions.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 82-93"},"PeriodicalIF":0.0,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00279b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reaction intermediates recognized by in situ FTIR spectroscopy in CO2 hydrogenation over the Cu/ZnO/SPP-zeolite catalyst†","authors":"Xiaolong Liu, Guangying Fu, Qiaolin Lang, Ruiqin Ding, Qiangsheng Guo, Ke Liang, Shuman Gao, Xiaobo Yang and Bing Yu","doi":"10.1039/D4LF00266K","DOIUrl":"https://doi.org/10.1039/D4LF00266K","url":null,"abstract":"<p >Cu/ZnO nanoparticles embedded in zeolites possess smaller particle sizes than those in the conventional Cu/ZnO/Al<small>₂</small>O<small>₃</small> catalyst. Therefore, they exhibit a distinctive manner of interaction with the reactants in the catalytic hydrogenation of CO<small>₂</small> to methanol. The present paper uses <em>in situ</em> FTIR spectroscopy to recognize the introduction and removal of various carbonates, carbonyl, formates and water species adsorbed on the surface of a Cu/ZnO/SPP-zeolite catalyst in reactive flows. Together with other characterization results, such as <em>quasi-in situ</em> XPS, it was revealed that the Cu surfaces have an uneven electronic distribution and that constant carbonate coverage, low water adsorption, and fast consumption of carbonyls and formates are associated with the high conversion frequency of CO<small>₂</small> over the Cu/ZnO/zeolite material.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 114-121"},"PeriodicalIF":0.0,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00266k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topographical characteristics of 3D printed polymeric microneedle surface and its impact on coating formulation attributes","authors":"Masood Ali, Yanling Yang, Ayyah Abdoh and Yousuf Mohammed","doi":"10.1039/D4LF00177J","DOIUrl":"https://doi.org/10.1039/D4LF00177J","url":null,"abstract":"<p >In recent years, 3D printing has emerged as a promising technique for fabricating polymeric microneedles (μNDs), offering flexibility and precision. However, the surface topography of these μNDs plays a pivotal role in determining coating formulation characteristics and, consequently, their efficacy in drug delivery applications. This review delves into contemporary approaches for evaluating the surface topography of 3D printed polymeric μNDs, exploring its impact on coating formulation characteristics. With reference to the latest research in the materials industry, we elucidate the close relationship between the adhesion of coating material and μND surface, considering their physical and chemical properties. Fundamental principles relevant to understanding the influence of surface topography on therapeutic coating are discussed, emphasising how surface microtopography influences adhesion strength. Moreover, non-contact methodologies such as profilometry are reviewed for characterising μND surface morphology, highlighting their utility in assessing surface roughness, porosity, and feature geometry. Additionally, we explore how coating formulation attributes dictate surface wetting, surface energy, and interfacial adhesion strength. Insights from this review offer valuable guidance for optimising the fabrication process of 3D printed polymeric μNDs, tailoring their surface topography to enhance coating formulation performance in diverse biomedical applications.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 6","pages":" 1108-1128"},"PeriodicalIF":0.0,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/lf/d4lf00177j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface photovoltage predicts open circuit voltage in GaP/PEDOT:PSS and GaP/CuSCN heterojunction solar cells†","authors":"Anna C. Kundmann, Kathleen Becker and Frank E. Osterloh","doi":"10.1039/D4LF00225C","DOIUrl":"https://doi.org/10.1039/D4LF00225C","url":null,"abstract":"<p >The cost-effective fabrication of inorganic photovoltaic (PV) devices is important for their implementation on a global scale. Solution processing techniques, such as spray coating, spin coating, and electrodeposition, can drive down costs; however, a better understanding of the charge transfer characteristics of the resulting semiconductor heterojunctions is needed to minimize photovoltage losses at interfaces. In this work, we generate solution-processed heterojunctions by spin coating PEDOT:PSS and electrodepositing CuSCN as hole transport layers (HTLs) onto GaP wafers. After adding silver paint as a front contact, we obtain devices with short circuit current densities of 0.40 mA cm<small>⁻²</small> and 0.18 mA cm<small>⁻²</small>, open circuit voltages of 0.47 V and 0.43 V, and power conversion efficiencies of 0.045% and 0.031% for PEDOT:PSS and CuSCN HTLs, respectively. Surface photovoltage spectroscopy (SPS) is used to study photochemical charge separation at the illuminated GaP interfaces. We find that the surface photovoltage signal is a good predictor of the photovoltage of the devices, as confirmed by comparison with open circuit potential data. SPS also reveals improved hole collection by the HTLs and a detrimental Schottky junction at the In/GaP back contact, further evidenced by S-shaped current–voltage profiles in electric measurements. Reducing the Schottky barrier height will be essential to improve device performance.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 6","pages":" 1426-1435"},"PeriodicalIF":0.0,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/lf/d4lf00225c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}