Feng Wei, Hao Qi, Bin Li, Rongsheng Cai, Mingrui Liao, Peixun Li, Xiaozhi Zhan, Tao Zhu, Hai Xu, Xuzhi Hu, Jian Ren Lu, Feng Zhou
{"title":"Expression of concern to \"Probing the relevance of synergistic lipid membrane disruption to the eye irritation of binary mixed nonionic surfactants\" [J. Colloid Interface Sci. 678(Part C) (2025) 854-863].","authors":"Feng Wei, Hao Qi, Bin Li, Rongsheng Cai, Mingrui Liao, Peixun Li, Xiaozhi Zhan, Tao Zhu, Hai Xu, Xuzhi Hu, Jian Ren Lu, Feng Zhou","doi":"10.1016/j.jcis.2025.02.185","DOIUrl":"https://doi.org/10.1016/j.jcis.2025.02.185","url":null,"abstract":"","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"689 ","pages":"137177"},"PeriodicalIF":9.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic cobalt-nitrogen sites and cobalt nanoparticles in polyethylene terephthalate-derived catalysts for selective singlet oxygen generation: Bridging plastic upcycling and antibiotic mineralization","authors":"Kefu Wang, Changyan Guo, Yidi Liu, Erhao Chen, Boya Sun, Yubin Wang, Yage Xing, Jide Wang","doi":"10.1016/j.jcis.2025.138027","DOIUrl":"10.1016/j.jcis.2025.138027","url":null,"abstract":"<div><div>To confront the synergistic remediation of plastic waste valorization and antibiotic contamination, we engineered cobalt-embedded nitrogen-enriched carbonaceous hybrids (Co@N/PC) via a molten salt-assisted pyrolysis strategy using polyethylene terephthalate (PET) plastics coupled with zeolitic imidazolate framework-67 (ZIF-67) immobilization. These transition metal–carbon composites were methodically optimized as peroxymonosulfate (PMS) activators for enhanced tetracycline (TC) degradation. Kinetic evaluations demonstrated that Co@N/PC-800 exhibited exceptional catalytic performance with a first-order rate constant (<em>k</em><sub>obs</sub> = 0.085 min<sup>−1</sup>) surpassing conventional ZIF-67-derived counterparts by 2.3-fold. Remarkably, the optimized catalyst sustained 88.16 % TC elimination efficiency within 30 min under environmentally relevant conditions, including elevated ionic strength and natural organic matter interference, confirming robust operational stability. Multidisciplinary characterization (radical scavenging, electron paramagnetic resonance (EPR), and voltametric analyses) identified that Co<sup>2+</sup>/Co<sup>3+</sup> redox cycling synergistically interacts with graphitic carbon matrices to enhance electron transfer efficiency, while atomically dispersed Co-N catalytic sites specifically drive the generation of singlet oxygen (<sup>1</sup>O<sub>2</sub>) through a non-radical oxidation mechanism. Density functional theory (DFT) calculations reveal that synergistic coupling between atomically dispersed Co-N sites and metallic Co nanoparticles in carbon-based heterostructures markedly enhances PMS activation. This configuration significantly lowers the activation energy barrier and enhances PMS activation, thereby accelerating interfacial electron transfer and promoting reactive oxygen species (ROS) generation. Molecular orbital analysis further demonstrates that pollutant degradation kinetics correlate with energy level alignment between the highest occupied molecular orbital (HOMO) of contaminants and the lowest unoccupied molecular orbital (LUMO) of <sup>1</sup>O<sub>2</sub>. This research develops a bifunctional remediation strategy that integrates plastic upcycling with the deep mineralization of micropollutants, achieved through the rational design of transition metal–carbon heterogeneous interfaces.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 138027"},"PeriodicalIF":9.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoyu Li , Yuying Wang , Jiahong Zou , Xing’an Dong , Linpiao Cheng , Wenyang Fu , Yan Jiang , Guangming Jiang , Shams Ali Baig
{"title":"Efficient surface Hydroxyl-to-Hydroxyl radical conversion on layered double hydroxide via High-Efficiency hydroxyl Transformer","authors":"Xiaoyu Li , Yuying Wang , Jiahong Zou , Xing’an Dong , Linpiao Cheng , Wenyang Fu , Yan Jiang , Guangming Jiang , Shams Ali Baig","doi":"10.1016/j.jcis.2025.138014","DOIUrl":"10.1016/j.jcis.2025.138014","url":null,"abstract":"<div><div>Promoting the activation of surface or edges hydroxyl groups in layered double hydroxides (LDHs) to facilitate its conversion to hydroxyl radicals (·OH) in photocatalytic process has received wider attention in research communities. However, the pristine LDHs are unable to convert surface or edges hydroxyl groups to ·OH with the energy of visible light illumination, so it is necessary to structurally modulate them to improve their conversion of surface hydroxyl groups to ·OH under light illumination. Herein, we innovatively combined nickel-iron layered double hydroxide (NiFe-LDHs, hydroxyl groups library) with bismuth carbonate oxide ((BiO)<sub>2</sub>CO<sub>3</sub>, BOC, ·OH generator), enabling a sustained and efficient transformation of hydroxyl groups on the surface or edges of NiFe-LDHs into ·OH. Mechanism studies supported by in-situ spectroscopic analyses and theoretical simulations, showed that under the visible light illumination the hot holes generated on energy band-matched BOC can capture OH<sup>-</sup> located at the surface/edge of NiFe-LDHs nanosheets and further convert them into ·OH and efficiently promoted the oxidation of NO to NO<sub>3</sub><sup>-</sup>. The NO removal efficiency of BOC/NiFe-LDHs composite material is about 54.5%, which was 2.23 times that of the original BOC.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 138014"},"PeriodicalIF":9.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparing copper and tin-based medium-entropy alloy oxide for producing hydrogen linking to waste polyethylene terephthalate (PET) upcycling","authors":"Xinjie Xie , Shilong Zhou , Chunyong Zhang , Shuang Dong , Zhou Yang","doi":"10.1016/j.jcis.2025.138018","DOIUrl":"10.1016/j.jcis.2025.138018","url":null,"abstract":"<div><div>Electrocatalytic water splitting for hydrogen production presents a promising solution to the global energy crisis. The high-value recycling and utilization of waste polyethylene terephthalate (PET) presents an environmental-friendly solution to address the “white pollution” caused by plastics. How to link the two reactions? Significantly, in a PET hydrolysate solution, the hydrogen evolution reaction (HER) occurs at the cathode, while the ethylene glycol oxidative reaction (EGOR) occurs at the anode, producing hydrogen and formic acid (FA), respectively. The design of electrocatalyst is the key point. Herein, we synthesised and evaluated three copper (Cu) and tin (Sn)-based medium-entropy alloy oxides (MEAOs): Cu<sub>0.5</sub>Co<sub>0.5</sub>SnO<sub>3.17</sub>, Cu<sub>0.5</sub>Ga<sub>0.5</sub>SnO<sub>3.25</sub> and Cu<sub>0.5</sub>Ni<sub>0.5</sub>SnO<sub>3</sub>. Cu<sub>0.5</sub>Co<sub>0.5</sub>SnO<sub>3.17</sub> showed the most favourable electrochemical performance, with an HER overpotential of 181 mV at 10 mA cm<sup>−2</sup> and a low cell voltage of 1.26 V. Its electrochemical performance was better than that of the commercial RuO<sub>2</sub> + Pt/C system. Besides, Cu<sub>0.5</sub>Co<sub>0.5</sub>SnO<sub>3.17</sub> efficiently converts EG to FA, achieving a Faradaic efficiency (<em>FE</em>) of 97.7 % at 1.6 V, slightly surpassing the performances of Cu<sub>0.5</sub>Ni<sub>0.5</sub>SnO<sub>3</sub> and Cu<sub>0.5</sub>Ga<sub>0.5</sub>SnO<sub>3.25</sub> MEAOs. Density functional theory (DFT) reveals that the Cu<sub>0.5</sub>Co<sub>0.5</sub>SnO<sub>3.17</sub> possesses a d-band center that is closer to the Fermi level, and the Co 3d orbit has the most contribution to the density of state (DOS), reflecting more synergetic effect in the Cu<sub>0.5</sub>Co<sub>0.5</sub>SnO<sub>3.17</sub>.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 138018"},"PeriodicalIF":9.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gu Gaoyuan , Ge Ruijie , Zhou Yan , Zhang Jianing , Li Wenhui , Peng Chong , Bi Changlong , Yang Shuyi , E Tao
{"title":"Magnetic graphene vacancies: atomic-scale O2 scissors mediated by antiferromagnetic exchange interaction–spin-orbit selective coupling effects","authors":"Gu Gaoyuan , Ge Ruijie , Zhou Yan , Zhang Jianing , Li Wenhui , Peng Chong , Bi Changlong , Yang Shuyi , E Tao","doi":"10.1016/j.jcis.2025.137998","DOIUrl":"10.1016/j.jcis.2025.137998","url":null,"abstract":"<div><div>The serious corrosion of electrode caused by hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) generated by noble metal catalyst through two-electron path is the key bottleneck of large-scale application of fuel cell. Based on the study of the structure–activity relationship between defect size and oxygen reduction reaction (ORR) activity of graphene, a strategy is proposed to use the single-atom vacancy (SAV) of graphene to induce electrons to preferentially fill the antibonding orbital (π*<em><sub>p</sub></em>) of oxygen (O<sub>2</sub>) and achieve four-electron path selectivity far exceeding conventional carbon defects via Yeager-type adsorption. Among them, a new mechanism of electron transfer induced by the magnetic properties of SAV and O<sub>2</sub> (spin inversion induced by antiferromagnetic exchange and selective injection of the same spin orbitals (<em>p</em><sub>z</sub>-π*<em><sub>p</sub></em>)) is the key to realize the strong electron transfer and shear of O<sub>2</sub>. In thermodynamic analysis, the magnetic SAV has the lowest ORR overpotential (0.26 V) and the highest *OOH desorption barrier, showing a unique four-electron path selectivity. The above results will provide new insights into the electron transfer mechanism of magnetic materials and fill the theoretical gap of magnetism in the development of atomic scale construction of graphene defects, non-metallic catalysts for fuel cells, and corrosion resistance technology.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 137998"},"PeriodicalIF":9.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photovoltaic charge lithography for droplet transport and electrowetting on passive dielectric substrates","authors":"Riccardo Zamboni , Carlos Sebastián-Vicente , Athira Sadasivan , Angel García-Cabañes , Mercedes Carrascosa , Jörg Imbrock","doi":"10.1016/j.jcis.2025.137976","DOIUrl":"10.1016/j.jcis.2025.137976","url":null,"abstract":"<div><h3>Hypothesis</h3><div>Photovoltaic charge lithography is an innovative method for printing surface charges from an illuminated iron-doped lithium niobate crystal stamp onto passive dielectric substrates. We hypothesize that this approach can be effectively utilized for droplet manipulation, including electrowetting and droplet transport, offering high reconfigurability similar to optical techniques and avoiding the need for the presence of photosensitive materials in the main platform, simplifying the design of the system and expanding its practical applicability.</div></div><div><h3>Experiments</h3><div>We tested photovoltaic charge lithography on a variety of dielectric substrates with different wetting properties. Using incoherent illumination in an air atmosphere, we examined the method's versatility by exploring the effects of varying light exposure on electrowetting and dielectrophoretic droplet attraction. Numerical simulations were also conducted to investigate the interactions between the printed surface charges and the droplets, providing a deeper understanding of the underlying mechanisms.</div></div><div><h3>Findings</h3><div>Our results confirmed the effectiveness of photovoltaic charge lithography for manipulating droplets on diverse dielectric substrates. The method enabled complex functionalities, including light-exposure-tailored electrowetting, droplet transport of single and multiple consecutive droplets (even uphill), and controlled coalescence. Furthermore, the technique proved to be capable of printing surface charges on flexible polymeric substrates, demonstrating its broad applicability. Numerical simulations supported the experimental observations by offering valuable insights into the interactions between the printed charges and the droplets.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 137976"},"PeriodicalIF":9.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiabei Li , Tursun Abdiryim , Ruxangul Jamal , Kai Song , Hongtao Yang , Jiachang Liu , Yanqiang Zhou , Guoliang Zhang , Wenjing Zhang , Jinglei Chen
{"title":"High-performance supercapacitor based on 3D Ti3C2Tx electrodes and sulfonated lignin gel electrolyte","authors":"Jiabei Li , Tursun Abdiryim , Ruxangul Jamal , Kai Song , Hongtao Yang , Jiachang Liu , Yanqiang Zhou , Guoliang Zhang , Wenjing Zhang , Jinglei Chen","doi":"10.1016/j.jcis.2025.137948","DOIUrl":"10.1016/j.jcis.2025.137948","url":null,"abstract":"<div><div>Supercapacitors are highly efficient energy storage systems. The electrode substances and electrolytes, which form their primary components, are key areas of research for scientists. In this study, the transition metal material Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and Poly(3,4-ethylenedioxythiophene) (PEDOT)-based polyacrylamide dual-crosslinked network polymers with good conductivity are selected as the cathode material and gel electrolyte, respectively. To address issues such as self-aggregation of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> during use, insufficient energy density, and poor dispersibility of 3,4-Ethylenedioxythiophene (EDOT) during the preparation of the hydrogel, polystyrene nanospheres are first used as templates to convert Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> from a two-dimensional sheet to a three-dimensional spherical structure, followed by the introduction of bimetallic cobalt–nickel hydroxide (CoNi-OH) to effectively enhance its performance. In addition, sulfonated lignin (SL) is incorporated into the hydrogel to improve the dispersibility of PEDOT in water-based solvents, promoting the development of a uniform hydrogel. The results show that the fabricated composite CoNi-OH/3D Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> exhibits a specific capacitance of up to 2020 ± 50<!--> <!-->F g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup>. The assembled asymmetric supercapacitor demonstrates a specific capacitance of 278.3 ± 30<!--> <!-->F g<sup>−1</sup>. At a power density of 750 W kg<sup>−1</sup>, it exhibits an energy density of 87 Wh kg<sup>−1</sup>. After 7,000 cycles of testing, the device shows a Coulombic efficiency of 99.4 % ± 0.1 % and maintains 83.7 % ± 0.2 % of its initial capacitance at a current density of 3 A g<sup>−1</sup>. These findings indicate that the CoNi-OH/3D Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> electrodes and PEDOT/SL gel electrolytes have significant potential for development in the energy storage field.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 137948"},"PeriodicalIF":9.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic design of 3D Na3.2Zr1.9Ca0.1Si2PO12-based composite solid electrolyte via in-situ polymerization for solid-state sodium batteries","authors":"Jin-Seok Yang, Omkar Sangabathula, Chan-Jin Park","doi":"10.1016/j.jcis.2025.137994","DOIUrl":"10.1016/j.jcis.2025.137994","url":null,"abstract":"<div><div>The growing demand for sustainable and high-performance energy storage solutions has driven significant advancements in sodium-ion batteries (SIBs) as a cost-effective and eco-friendly alternative to lithium-ion batteries (LIBs). This study introduces a composite solid electrolyte (CSE) designed for solid-state sodium batteries (SSSBs), leveraging a 3D NASICON framework to address challenges associated with ionic conductivity, mechanical stability, and interfacial resistance. The CSE was synthesized through in-situ polymerization of butyl acrylate (BA) within a porous Na<sub>3.2</sub>Zr<sub>1.9</sub>Ca<sub>0.1</sub>Si<sub>2</sub>PO<sub>12</sub> (NZCSP) framework fabricated via a tape casting method. The resulting structure achieved an ionic conductivity of 7.1 × 10<sup>−4</sup> S cm<sup>−1</sup> at 30 °C, electrochemical stability up to 4.88 V versus Na/Na<sup>+</sup>, and a sodium-ion transference number (t<sub>Na</sub><sup>+</sup>) of 0.62. Na|CSE|Na symmetric cells exhibit remarkable sodium stripping/plating stability with minimal overpotential over 1000 h. Na|3D-NZCSP-CSE| Na<sub>3</sub>Mg<sub>0.5</sub>V<sub>1.95</sub>(PO<sub>4</sub>)<sub>3</sub>@C (NVMP@C) cells exhibited excellent performance, retaining 95 % of their initial capacity after 500 cycles at 1.0C and maintaining a specific discharge capacity of 94.4 mAh g<sup>−1</sup>. These findings demonstrate the potential of 3D framework-based CSEs to advance the practical application of SSSBs, offering a pathway to safer, more efficient, and cost-effective energy storage technologies.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"698 ","pages":"Article 137994"},"PeriodicalIF":9.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ziwei Wang, Jiawei Li, Zhaoxuanxuan Chen, Zhanfang Ma, Hongliang Han
{"title":"Imprinted probes achieve highly specific recognition of L-phenylalanine","authors":"Ziwei Wang, Jiawei Li, Zhaoxuanxuan Chen, Zhanfang Ma, Hongliang Han","doi":"10.1016/j.jcis.2025.137987","DOIUrl":"10.1016/j.jcis.2025.137987","url":null,"abstract":"<div><div>Molecularly imprinted polymers (MIPs) for amphiphilic small molecules are typically synthesized using a “monolithic imprinting” approach and enable target monolithic recognition, but suffer from non-specific adsorption in complex samples, thereby limiting specificity. To address these limitations, a novel “imprinted probe recognition” mode was proposed for the first time. According to the hydrophilic and hydrophobic structures of molecules as templates respectively, two kinds of MIPs were fabricated, and the “imprinted substrate–target analyte–imprinted probe (with electrochemical signals)” recognition mode was constructed. As a proof of concept, L-phenylalanine was selected as a model analyte for verification. The imprinting factor (evaluating specificity) of “imprinted probe recognition” is increased from 3.63 to 5.47 compared with “monolithic recognition”, and the specificity is improved by more than 50 %. This technology enables effective labeling of amphiphilic small molecules with substantially improved specificity in various environments, providing a general and feasible concept for the accurate recognition of small molecules.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137987"},"PeriodicalIF":9.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Encapsulation of cobalt-iron Prussian blue analog nanocubes using a redox polymer for advanced supercapacitor cathode materials","authors":"Yan Bao, Guangchun Chen, Xinglin Zhu, Pingfan Zou, Quanwei Yang, Saisai Yuan, Chuanxiang Chen","doi":"10.1016/j.jcis.2025.137975","DOIUrl":"10.1016/j.jcis.2025.137975","url":null,"abstract":"<div><div>Prussian blue analogs (PBAs) are promising cathode materials for aqueous supercapacitors because of their open 3D framework, low cost, and large theoretical capacitance. Nevertheless, their poor electrical conductivity and unavoidable dissolution during cycling result in a low rate capability and cycle life. Herein, a facile <em>in situ</em> polymerization encapsulation strategy, which can increase the energy storage performance of cobalt-iron PBA nanocubes <em>via</em> the use of a redox polymer nanoskin (CFP@PTMT), is demonstrated for aqueous supercapacitors. The poly(trimethyl thionine) (PTMT) nanoskin serves a triple-functional role as a conductive skeleton, electroactive protection layer, and structural stabilizer to increase the electrical conductivity, pseudocapacitance contribution, and structural stability of CFP. Interestingly, CFP@PTMT delivers a high capacitance of 984 F g<sup>−1</sup> at 1 A g<sup>−1</sup> and a superior rate capability of 87.19 % capacitance retention at 10 A g<sup>−1</sup>, with a 99.34 % capacitance retention over 5,000 cycles. Notably, an asymmetric supercapacitor is assembled using a CFP@PTMT cathode and an activated carbon anode, which results in a high capacitance of 287 F g<sup>−1</sup>, a large energy density of 45.26 Wh kg<sup>−1</sup>, and an excellent power density of up to 8,000 W kg<sup>−1</sup> with 99.00 % capacitance retention after 5,000 cycles. This work establishes that redox polymer nanoskin encapsulation not only addresses the intrinsic drawbacks of PBAs but also creates a new design paradigm for integrating conductivity, pseudocapacitance, and structural stability at a single nanoscale interface. This strategy paves the way for next-generation aqueous energy storage devices with balanced high performance and durability.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"697 ","pages":"Article 137975"},"PeriodicalIF":9.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}