Shouyan Zhang, Huiqing Zhao, Sihao Qian, Yuzhe Zhai, Shuhua Zhang, Zhi Geng and Bo Zhu
{"title":"Cell-selective zwitterionic parylene with intrinsic antifouling, softness, and conformability†","authors":"Shouyan Zhang, Huiqing Zhao, Sihao Qian, Yuzhe Zhai, Shuhua Zhang, Zhi Geng and Bo Zhu","doi":"10.1039/D4LF00289J","DOIUrl":"https://doi.org/10.1039/D4LF00289J","url":null,"abstract":"<p >Parylene is one of the most widely used polymers to fabricate flexible bioelectronic devices due to its flexibility, excellent barrier property, and photolithography-compatible fabrication. However, the extensively presented biofouling and the lack of biofunctionalities on the parylene surface prevent the bioelectronic device from constructing intimate coupling with cells/tissues. We herewith fabricated an intrinsically antifouling and soft parylene thin film featuring specific biointeraction, which consists of a bottom layer of pristine parylene and a top layer of 2-bromoisobutyrate functionalized parylene with ligand conjugated zwitterionic polymers. This layer-by-layer structure helps ensure the encapsulation property while allowing for tuning surface function for biomedical applications. This biomimetic parylene thin film presents an excellent barrier property (<10 pA leakage current after 12 weeks of soaking in 37 °C PBS buffer), a three-orders-of-magnitude reduced surface modulus (∼45 kPa), and exceptional mechanical compliance and conformability, all of which are crucial for constructing stable coupling with cells/tissues. Remarkably, the biomimetic parylene demonstrated a highly selective interaction toward PC12/HL-1 cells in the presence of a much higher density of white blood cells, thanks to the construction of specific cell interaction on a biofouling-resistant background. We envision that this biomimetic parylene material would offer bioelectronic devices a controllable interaction with biological systems, allowing seamless integration with cells/tissues and promoting the practical use of bioelectronic devices in real-life situations.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 496-507"},"PeriodicalIF":0.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00289j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594458","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}
Johnathan D. Culpepper, Anthony G. Frutos, Jenna B. Yehl, Theresa Chang and Joydeep Lahiri
{"title":"Colorless copper-containing coatings with high antimicrobial efficacy and formulation versatility†","authors":"Johnathan D. Culpepper, Anthony G. Frutos, Jenna B. Yehl, Theresa Chang and Joydeep Lahiri","doi":"10.1039/D4LF00235K","DOIUrl":"https://doi.org/10.1039/D4LF00235K","url":null,"abstract":"<p >This work reports an antimicrobial (AM) copper(<small>I</small>)-containing additive for water-based formulations with high efficacy and minimal impact to the formulation's natural color. Determination of whether Cu<small><sup>1+</sup></small> ions can be maintained for long durations of time and induce high bioactivity when used in complex aqueous environments are known technical challenges towards using copper as an antimicrobial additive. Cu<small><sup>1+</sup></small> ions are the preferred oxidation state to achieve broad-spectrum AM efficacy. Also, Cu<small><sup>1+</sup></small> if stabilized in a formulation, can impart low color changes relative to the Cu<small><sup>2+</sup></small> ions. To this end, we developed a UV-vis spectroscopy approach to track copper speciation. We used multinuclear NMR spectroscopy on copper-based additive mixtures to also demonstrate that Cu<small><sup>1+</sup></small> ions within the additive converts selected water-based formulations into antimicrobial white and clear coatings. The copper additive mixtures were made by extracting Cu<small><sup>1+</sup></small> ions from a previously reported copper-glass ceramic (CGC) powder that offered high antimicrobial efficacy, but CGC powders when used directly led to unacceptably high color in white paints and clear coatings. Ligands such as phosphites were shown to promote extraction and stabilization of Cu<small><sup>1+</sup></small> ions through coordination. The antimicrobial performance of the additives was tested in commercial formulations that included a white latex paint and clear coatings for wood and glass substrates. A reduction in <em>Staphylococcus aureus</em> (staph) bacteria of >99.9% (>log 3 kill), under test conditions that simulate realistic microbial contamination, was observed for these coatings with negligible change to the original color of the coating. Here, our findings demonstrate novel advancements in the field of inorganic antimicrobial clear coatings for a range of surfaces such as in daycare, hospitality, healthcare interior spaces, automotive interiors, and consumer electronics.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 484-495"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00235k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594457","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":"Selective adsorption and separation of C6 hydrocarbons: the role of structural flexibility and functionalization in zeolitic imidazolate frameworks†","authors":"Kevin Dedecker, Martin Drobek and Anne Julbe","doi":"10.1039/D4LF00388H","DOIUrl":"https://doi.org/10.1039/D4LF00388H","url":null,"abstract":"<p >This study investigates the selective adsorption and separation of C<small><sub>6</sub></small> hydrocarbons (benzene, cyclohexane, and <em>n</em>-hexane) by zeolitic imidazolate frameworks (ZIFs), focusing on their structural flexibility and functionalization. ZIF-8_CH<small><sub>3</sub></small> and ZIF-8_Br were synthesized and compared, indicating distinct adsorption behaviors. ZIF-8_CH<small><sub>3</sub></small> showed higher uptake for benzene (9.5 molecules per unit cell) and <em>n</em>-hexane (8.0 mlc uc<small><sup>−1</sup></small>) compared to cyclohexane (1.0 mlc uc<small><sup>−1</sup></small>). In contrast, ZIF-8_Br exhibited enhanced adsorption for cyclohexane (5.0 mlc uc<small><sup>−1</sup></small>) and reduced <em>n</em>-hexane uptake (0.5 mlc uc<small><sup>−1</sup></small>). Computational simulations supported these findings, identifying the involved host–guest interactions. Ideal adsorbed solution theory analysis confirmed that ZIF-8_CH<small><sub>3</sub></small> demonstrated virtually zero uptake of cyclohexane from binary mixtures containing either <em>n</em>-hexane or benzene, while ZIF-8_Br exhibited negligible adsorption of <em>n</em>-hexane from its mixtures with cyclohexane or benzene. It was concluded that bromine functionalization in ZIF-8_Br increased structural rigidity and selectivity for aromatic compounds. These results highlight the crucial role of functionalization and gate-opening phenomena in ZIFs to achieve efficient volatile organic compound capture and separation where traditional adsorbents may not be effective.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 364-372"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00388h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594551","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":"A review of filiform corrosion and its prevention on polymer-coated aluminium alloys","authors":"Erlind Mysliu, Iman Taji and Andreas Erbe","doi":"10.1039/D4LF00231H","DOIUrl":"https://doi.org/10.1039/D4LF00231H","url":null,"abstract":"<p >Filiform corrosion (FFC) is an underpaint corrosion form frequently observed on metals with a high band gap oxide, <em>e.g.</em>, aluminium and magnesium. Macroscopically, FFC shows as filaments propagating at a metal/coating interface. Electrochemically, an anodic active region is followed by a cathodic tail and a region where solid corrosion products precipitate. Two forms of FFC are observed, (i) fast anodic undercutting at the metal/coating interface and (ii) successive pitting. This work reviews experimental evidence for FFC mechanisms especially on 3xxx and 6xxx rolled and extruded aluminium alloys and the effect of the surface composition and microstructure. Recent evidence suggested that the hydrogen evolution and related bubble detachment near the anodic region in the head are more important for coating detachment than previously envisaged. For efficient FFC protection, surface pretreatments such as anodising and the sequence of etching, desmutting and conversion coating are crucial. Industrial focus has recently been on FFC on aluminium with a large content of post-consumer (a.k.a. end-of-life) scrap.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 304-319"},"PeriodicalIF":0.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00231h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594548","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}
R. Blake Nuwayhid, Junghoon Yeom, Hunter O. Ford, Zachary G. Neale, Michael W. Swift, Noam Bernstein, Rachel E. Carter and Jeffrey W. Long
{"title":"Mitigating polysulfide crossover in lithium–sulfur batteries with polymer-coated separators†","authors":"R. Blake Nuwayhid, Junghoon Yeom, Hunter O. Ford, Zachary G. Neale, Michael W. Swift, Noam Bernstein, Rachel E. Carter and Jeffrey W. Long","doi":"10.1039/D4LF00369A","DOIUrl":"https://doi.org/10.1039/D4LF00369A","url":null,"abstract":"<p >Lithium–sulfur (Li–S) batteries promise high energy density and sustainability advantages by using earth-abundant sulfur as a key component, yet practical performance is limited by the complexity of sulfur-based redox reactions. One key challenge is the dissolution and redistribution of soluble lithium polysulfide (LiPS) intermediates from the sulfur cathode, which leads to irreversible loss of active material, poor cycle life, and high self-discharge rates. To ameliorate this issue, we use initiated chemical vapor deposition (iCVD) to conformally coat conventional polyolefin separators with an ultrathin (40–400 nm) copolymer, poly(divinylbenzene-<em>co</em>-(dimethylaminomethyl)styrene). This pDVB-<em>co</em>-DMAMS copolymer is designed with amine functionalities to interact with LiPSs and mitigate cathode-to-anode crossover, while DVB comonomer units serve as cross-linkers that improve mechanical integrity. We evaluate the electrochemical properties of prototype Li–S cells that include pDVB-<em>co</em>-DMAMS-coated separators and sulfur-infused carbon nanofoam paper cathodes. Separators with the thickest pDVB-<em>co</em>-DMAMS coating (400 nm) provide extended protection against self-discharge, while 40 nm pDVB-<em>co</em>-DMAMS coatings enable the highest overall rate capability and cycling stability while still maintaining reasonably low self-discharge rates. Post-cycling analysis of anode, separator, and cathode components, in conjunction with computational efforts, confirms that pDVB-<em>co</em>-DMAMS delays LiPSs crossover through chemical adsorption in the polymer-coated separator. The pDVB-<em>co</em>-DMAMS-coated separators also interact with Li metal anode to form favorable chemical speciation at the solid-electrolyte interphase that stabilizes the Li surface for Li–S cell operation.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 472-483"},"PeriodicalIF":0.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00369a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594456","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}
Zahra Alinia, Dandan Miao, Thomas Baumgartner and Christine E. DeWolf
{"title":"Self-assembly of phosphole-lipids in 2D films: the influence of π-interactions and steric constraints†","authors":"Zahra Alinia, Dandan Miao, Thomas Baumgartner and Christine E. DeWolf","doi":"10.1039/D4LF00361F","DOIUrl":"https://doi.org/10.1039/D4LF00361F","url":null,"abstract":"<p >Promising photophysical properties of π-conjugated phosphole-based materials make them appealing building blocks for electronic and optoelectronic devices. In practical terms, a well-ordered 2D film organization is re4quired that can be obtained by deposition and/or self-assembly of thin films on a solid substrate. Manipulation of the existing noncovalent interactions within the films, <em>via</em> altering the chemical structure or environmental conditions to modify the molecular arrangements, is one approach to control the electronic properties of these thin films. The inter- and intramolecular π–π interactions influencing the 2D film structure in Langmuir and Langmuir–Blodgett films of a series of lipids with phosphole-based, π-conjugated headgroups is explored in the presence and absence of aromatic additives. Brewster angle and atomic force microscopy demonstrated the simultaneous formation of 3D aggregates and a condensed phase. GIXD measurements confirmed that the 3D material formation should be hindered to promote the formation of an ordered 2D film. Different approaches were considered to manipulate the π–π interactions in the film: addition of small-molecule aromatics, mixtures of phosphole-lipids with phenolic surfactants, as well as conjugation extension of phosphole-lipid headgroup. Such π–π interactions can modify the directional growth of domains within 2D film, however, it is not strong enough to completely eliminate the 3D aggregate formation.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 460-471"},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00361f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594454","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}
Luca Burg, Luuk Kortekaas, Anna Gibalova, Constantin Daniliuc, Janis Heßling, Monika Schönhoff and Bart Jan Ravoo
{"title":"Exploring substituent effects in reversible photoswitchable low molecular weight arylazoisoxazole adhesives†","authors":"Luca Burg, Luuk Kortekaas, Anna Gibalova, Constantin Daniliuc, Janis Heßling, Monika Schönhoff and Bart Jan Ravoo","doi":"10.1039/D4LF00376D","DOIUrl":"https://doi.org/10.1039/D4LF00376D","url":null,"abstract":"<p >The design of reusable responsive materials is of utmost importance to reduce the unsustainable use of valuable resources. Inspired by our initial work on the application of arylazoisoxazoles (AIZ) as reusable photoresponsive adhesives, we aim to uncover generalizations to their adhesive properties and optimize their molecular design. To achieve this goal, a molecular library of AIZ with different substitution patterns has been synthesized and examined for their adhesive properties. Several of the photoreversible low molecular weight adhesives in the library exhibited significantly enhanced (> 500%) weight-bearing capacities. This study broadens the understanding of AIZ as photoresponsive adhesives, shedding light on their limitations and the opportunities to improve their performance alike.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 373-380"},"PeriodicalIF":0.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00376d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594552","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}
Letícia Marin de Andrade, Carlo Paternoster, Pascale Chevallier, Sofia Gambaro, Francesco Copes, Vinicius Fidelis de Oliveira Sales and Diego Mantovani
{"title":"Electropolishing Fe-based biodegradable metals for vascular applications: impact on surface properties, corrosion and cell viability","authors":"Letícia Marin de Andrade, Carlo Paternoster, Pascale Chevallier, Sofia Gambaro, Francesco Copes, Vinicius Fidelis de Oliveira Sales and Diego Mantovani","doi":"10.1039/D4LF00113C","DOIUrl":"https://doi.org/10.1039/D4LF00113C","url":null,"abstract":"<p >Biodegradable metals constitute a new class of materials for medical application. By breaking the paradigm that a metallic biomaterial to be implanted in the body must be corrosion resistant, biodegradable metals advance surgery allowing clinicians to dispose of temporary devices. Among them, Fe–Mn–C steel has emerged due to its outstanding mechanical properties, while its degradation rate must be carefully controlled. For this purpose, especially for medical devices, the surface finishing plays a pivotal role and influences both the corrosion behavior and biological response of these materials. Therefore, this research investigated the impact of electropolishing (EP) processes on the Fe–Mn–C alloy surface finishing in terms of composition, morphology, topography, and wettability. Three electrolytes were carefully selected and used in this study: EP1 (ethanol, perchloric acid, and glycerol), EP2 (perchloric acid, acetic acid, and glycerol), and an ionic liquid EP3 (choline chloride and ethylene glycol). Corrosion behavior and cell viability were investigated and compared with those obtained on mechanically polished (MP) samples. The results displayed that electropolishing was governed by two mechanisms: 1) controlled mass transport for EP1 and EP2, and 2) an adsorption mechanism for EP3. Among the tested conditions, EP2 emerged as a promising overall EP process. It promoted the smoothest and most hydrophilic passivated surface (<em>R</em><small><sub>a</sub></small> ∼ 10 nm, WCA = 53°, respectively) and the highest ratio of metal oxides to metallic elements. In addition, EP2 exhibited appropriate corrosion behavior suitable for biodegradable metal devices by inducing the formation of a protective oxide layer. Furthermore, cell viability with EP2 was comparable to that observed with MP. These findings emphasize the potential of electropolishing for enhancing the properties of Fe–Mn–C alloys, paving their applicability, especially in cardiovascular devices.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 420-438"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00113c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594451","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}
Elena Bernalte, Karen K. L. Augusto, Robert D. Crapnell, Hayley G. Andrews, Orlando Fatibello-Filho and Craig E. Banks
{"title":"Eco-friendly integration of gold nanoparticles into additive manufacturing filaments: advancing conductivity and electrochemical performance†","authors":"Elena Bernalte, Karen K. L. Augusto, Robert D. Crapnell, Hayley G. Andrews, Orlando Fatibello-Filho and Craig E. Banks","doi":"10.1039/D4LF00368C","DOIUrl":"https://doi.org/10.1039/D4LF00368C","url":null,"abstract":"<p >This work reports the inclusion of gold nanoparticles within conductive additive manufacturing filament for an improved electrochemical and electroanalytical performance. An eco-friendly synthesis was utilised, where graphite flakes are used as a natural reducing agent for the formation of gold nanoparticles. In this way, the graphite acts as both a reducing agent and contributes to the conductivity of the filament. The presence of gold nanoparticles on the surface of the graphite was confirmed through SEM, EDX, XRD and XPS analysis, after which the graphite was thermally mixed into recycled PLA along with carbon black and castor oil to create the conductive filament. Electrodes printed from this filament produced an enhanced electrochemical performance with a Δ<em>E</em><small><sub>p</sub></small> of 111 (±5) mV, a heterogeneous electron (charge) transfer rate constant, using hexaammineruthenium(<small>III</small>) chloride, of <em>k</em><small><sup>0</sup></small> of 2.04 (±0.08) × 10<small><sup>−3</sup></small> cm s<small><sup>−1</sup></small>, and the real electrochemical surface area, <em>A</em><small><sub>real</sub></small> of 0.53 (± 0.04) cm<small><sup>2</sup></small> upon the inclusion of gold nanoparticles. This filament also provided a significantly enhanced electroanalytical performance toward the proof-of-concept determination of lead(<small>II</small>), producing a linear range between 1–75 ppb (μg L<small><sup>−1</sup></small>), with a sensitivity of 37 nA ppb<small><sup>−1</sup></small>, an <em>R</em><small><sup>2</sup></small> value of 0.98 and a limit of detection and limit of quantification of 0.89 ppb and 2.97 ppb, respectively. The electrodes were additionally successfully applied toward the determination of lead(<small>II</small>) within river water samples. This work demonstrates how advancements in the production of conductive additive manufacturing filaments can be achieved, paving the way for new research opportunities while adhering to eco-friendly practices.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 2","pages":" 439-450"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00368c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594452","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}
Xiangzhen Zheng, Tao Huang, Ying Pan, Yongwei Chen, Mingdeng Wei and Maoxiang Wu
{"title":"A phosphite derivative with stronger HF elimination ability as an additive for Li-rich based lithium-ion batteries at elevated temperatures†","authors":"Xiangzhen Zheng, Tao Huang, Ying Pan, Yongwei Chen, Mingdeng Wei and Maoxiang Wu","doi":"10.1039/D4LF00326H","DOIUrl":"https://doi.org/10.1039/D4LF00326H","url":null,"abstract":"<p >Phosphite derivatives as film forming additives can effectively improve the electrochemical performance of cathodes in Li-ion batteries (LIBs). In this work, ethyl bis(trimethylsilyl) phosphite (TMSPE), which contains trimethylsilyl and ethyl functional groups, is used as a P-based additive for improving the electrochemical performance of a Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small> cathode. Further, the comparative evaluation of tris(trimethylsilyl) phosphite (TMSPi), TMSPE, and triethyl phosphite (TEP) as phosphite-based additives for Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small>/Li cells at 45 °C under a high voltage is also presented. Theoretical calculations and surface characterization revealed that TMSPE formed a thinner and stable cathode electrolyte interphase (CEI) on the surface of Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small>, which has lower interfacial impedance, stronger HF elimination, and transition metal dissolution inhibition, resulting in the best cell performance among the three phosphite-based additives.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 251-260"},"PeriodicalIF":0.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00326h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994249","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}