Journal of Colloid and Interface Science最新文献

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Accelerating chronic wound healing by breaking the pH limitations of biomolecule-loaded Nanozymes and remodeling the microenvironment in Cascade reactions 通过在级联反应中打破生物分子负载纳米酶的pH限制和重塑微环境来加速慢性伤口愈合
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-07 DOI: 10.1016/j.jcis.2025.138370
Chuanwei Shi , Peng Liu , Yeping Liu , Zhexu Gai , Fei Yang , Yanzhao Yang
{"title":"Accelerating chronic wound healing by breaking the pH limitations of biomolecule-loaded Nanozymes and remodeling the microenvironment in Cascade reactions","authors":"Chuanwei Shi ,&nbsp;Peng Liu ,&nbsp;Yeping Liu ,&nbsp;Zhexu Gai ,&nbsp;Fei Yang ,&nbsp;Yanzhao Yang","doi":"10.1016/j.jcis.2025.138370","DOIUrl":"10.1016/j.jcis.2025.138370","url":null,"abstract":"<div><div>The microenvironment around the wounds of chronic disease patients often exhibits weakly alkaline conditions, primarily due to defects in the patients' blood glucose regulation, tissue hypoxia, accumulation of metabolic products, and bacterial infection and growth. To regulate the wound microenvironment across a broad pH range, a Fe-doped ZIF-8 nanozyme loaded with glucose oxidase (Fe-ZIF-8@GOx) was synthesized via a one-step in situ growth method. This nanozyme, with ZIF-8 serving both as a protective matrix and immobilization scaffold, enhances the enzyme's operational microenvironment and maintains functionality across a wide pH range. It exhibits the activities of cascade glucose oxidase (GOx), catalase-like (CAT-like), and peroxidase-like (POD-like) enzymes. When Fe-ZIF-8@GOx nanozymes encounter high glucose levels at the site of weakly alkaline chronic ulcers, the GOx particles catalyze the reduction of local pH, simultaneously triggering CAT-like enzyme activity to release O₂ and improve the wound microenvironment. The subsequent pH reduction induces the controlled release of iron ions, enabling Fe<sup>2+</sup> to react with endogenously produced hydrogen peroxide to generate reactive oxygen species (ROS), conferring a distinctive guest–carrier synergistic antibacterial effect. Both in vitro and in vivo studies confirm that this material effectively reduces inflammation, modulates macrophage polarization, enhances collagen deposition, and promotes angiogenesis, ultimately accelerating wound healing under chronic diabetic conditions. Thus, our work not only overcomes microenvironmental limitations in antibacterial therapy but also offers a promising strategy for treating chronic diabetic infections.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138370"},"PeriodicalIF":9.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605636","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}
引用次数: 0
Preparation of a self-repairing, recyclable, and high-performance crosslinked polymer for the development of anisotropic thermally conductive adhesive films 制备一种可自修复、可回收、高性能的交联聚合物,用于发展各向异性导热胶膜
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-07 DOI: 10.1016/j.jcis.2025.138367
Jin-Biao Wang , Xin Sun , Yang Wang , Lu Cui , Weili Li , Zheng-Bai Zhao
{"title":"Preparation of a self-repairing, recyclable, and high-performance crosslinked polymer for the development of anisotropic thermally conductive adhesive films","authors":"Jin-Biao Wang ,&nbsp;Xin Sun ,&nbsp;Yang Wang ,&nbsp;Lu Cui ,&nbsp;Weili Li ,&nbsp;Zheng-Bai Zhao","doi":"10.1016/j.jcis.2025.138367","DOIUrl":"10.1016/j.jcis.2025.138367","url":null,"abstract":"<div><div>Thermal interface material (TIM) is a widely used composite adhesive film whose adhesion and vertical thermal conductivity are critical to its application. Alumina (Al<sub>2</sub>O<sub>3</sub>) is now the most commonly used thermal filler in the industry, due to its high-cost performance. However, the spherical morphology of Al<sub>2</sub>O<sub>3</sub> particles poses a significant challenge for the straightforward development of anisotropic thermal conductivity structure within a polymer substrate. This study aims to design a single-layer Al<sub>2</sub>O<sub>3</sub> distribution structure to improve the vertical thermal conductivity of TIM. To accomplish this objective, a copolymer grafted with ethylene-vinyl acetate copolymer (EVA) and isobutylene-isoprene rubber (IIR) was synthesized via C<img>C bonding. This EVA@IIR copolymer exhibits excellent self-repairing, adhesion, heat resistance and recyclability. Subsequently, the coating technology is employed to regulate the thickness of the adhesive film, thereby establishing a single-layer Al<sub>2</sub>O<sub>3</sub> distribution structure within the polymer substrate. Under the single-layer distribution structure, the particle size of Al<sub>2</sub>O<sub>3</sub> and the vertical plane (Z) thermal conductivity increase proportionally. At a 70 μm Al<sub>2</sub>O<sub>3</sub> loading of 70 wt%, the vertical thermal conductivity of the film increased by 129.3 % compared to the EVA@IIR substrate, and its thermal conductivity performance(Z) was superior to that of non-single-layer distribution structure films under the same loading. Therefore, this is conducive to effective heat transfer between heaters and heat sinks.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138367"},"PeriodicalIF":9.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588392","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}
引用次数: 0
Minimal structural perturbation of Histatin 5 in crowded environments: Insights from small-angle X-ray scattering, dynamic light scattering, and computer simulations 拥挤环境中组蛋白5的最小结构扰动:来自小角度x射线散射、动态光散射和计算机模拟的见解
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-07 DOI: 10.1016/j.jcis.2025.138310
Eric Fagerberg , Peter Holmqvist , Samuel Lenton , Petra Pernot , Marie Skepö
{"title":"Minimal structural perturbation of Histatin 5 in crowded environments: Insights from small-angle X-ray scattering, dynamic light scattering, and computer simulations","authors":"Eric Fagerberg ,&nbsp;Peter Holmqvist ,&nbsp;Samuel Lenton ,&nbsp;Petra Pernot ,&nbsp;Marie Skepö","doi":"10.1016/j.jcis.2025.138310","DOIUrl":"10.1016/j.jcis.2025.138310","url":null,"abstract":"<div><div>The structure and dynamics of intrinsically disordered proteins (IDPs) are malleable to solution conditions. Considerable effort has been devoted to understanding the effects of molecular crowding on these properties. Polymer-based crowders, such as polyethylene glycol (PEG) and Ficoll®, are commonly used to simulate the intracellular environment by replicating the high concentration of macromolecules. In this study, we examine the impact of crowding on the IDP Histatin 5 using PEG of various molecular weights and Ficoll® PM 70. Small-angle X-ray scattering (SAXS) reveals minimal effects on the structural ensemble of Histatin 5 in the presence of both PEG and Ficoll® PM 70. These findings are further supported by dynamic light scattering (DLS) experiments, which confirm the SAXS results. However, as the molecular weight of PEG increases, the concentration at which the semidilute regime is reached decreases. A similar trend is observed for the larger crowder, Ficoll® PM 70. Computational models align with the experimental results, suggesting negligible crowding effects. Additionally, simulations indicate that the crowders undergo greater conformational changes with increasing concentration than Histatin 5. These findings support the idea that smaller IDPs, such as Histatin 5, could exhibit a rigid, rod-like conformation that makes them resistant to crowding effects.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138310"},"PeriodicalIF":9.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604193","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}
引用次数: 0
Acoustic-driven nanofluids for phase-change thermal management of electronic devices 用于电子器件相变热管理的声驱动纳米流体
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-07 DOI: 10.1016/j.jcis.2025.138368
Junsheng Hou , Lei Huang , Dongyu Li , Xiong Zhao , Ning Wei , Li Ma , Zihan Ding , Zhenzhen Chen , Jinjia Wei , Nanjing Hao
{"title":"Acoustic-driven nanofluids for phase-change thermal management of electronic devices","authors":"Junsheng Hou ,&nbsp;Lei Huang ,&nbsp;Dongyu Li ,&nbsp;Xiong Zhao ,&nbsp;Ning Wei ,&nbsp;Li Ma ,&nbsp;Zihan Ding ,&nbsp;Zhenzhen Chen ,&nbsp;Jinjia Wei ,&nbsp;Nanjing Hao","doi":"10.1016/j.jcis.2025.138368","DOIUrl":"10.1016/j.jcis.2025.138368","url":null,"abstract":"<div><div>Thermal management in confined spaces presents a critical challenge for electronic device performance. Two-phase cooling demonstrates exceptional heat transfer capabilities in compact environments through latent heat utilization during phase change process. However, vapor film formation occurs prematurely due to bubble adhesion and accumulation in confined spaces. This study develops a low-power acoustic-enabled microchannel cooling system coupled with nanofluids, achieving significant thermal enhancement through combined active-passive strategies. Rapid synthesis of nanofluids is realized by high-throughput microreactor. Acoustic excitation facilitates bubble detachment and migration to delay vapor film formation, while nanofluids substantially increase nucleation site density and enhance shrinkage of dry spots. These effects collectively enhance critical heat flux (CHF), maximize heat transfer coefficient (HTC), and reduce surface temperature. At the flow velocity of 0.1 m·s<sup>−1</sup>, the integration of 0.01 wt% nanofluid with acoustics results in a 52 % enhancement in CHF and a 74 % improvement in HTC, along with a notable 13.2 K decrease in surface temperature. The combination of bubble tracking and clustering algorithms quantitatively analyzes bubble dynamics and nucleation characteristics, elucidating the fundamental mechanisms behind performance improvement.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138368"},"PeriodicalIF":9.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613391","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}
引用次数: 0
Fluorine-rich zincophilic covalent organic frameworks enabling anti-corrosion and uniform zinc deposition for aqueous zinc metal battery anodes 富氟亲锌共价有机框架,可用于水性锌金属电池阳极的防腐和均匀锌沉积
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-07 DOI: 10.1016/j.jcis.2025.138369
Yunyu Zhao, Yingjian Yu
{"title":"Fluorine-rich zincophilic covalent organic frameworks enabling anti-corrosion and uniform zinc deposition for aqueous zinc metal battery anodes","authors":"Yunyu Zhao,&nbsp;Yingjian Yu","doi":"10.1016/j.jcis.2025.138369","DOIUrl":"10.1016/j.jcis.2025.138369","url":null,"abstract":"<div><div>Aqueous zinc metal batteries (AZMBs) are a promising alternative for next-generation secondary batteries owing to their high safety, low cost, and high electrical capacity. However, issues such as corrosion and dendrite growth on zinc anodes hinder the practical application of AZMBs. In this study, we developed two two-dimensional fluorine-rich covalent organic frameworks (COFs), TpFPa and TpFBD, as protective layers for the AZMB anode. The fluorine-rich hybrid interface composed of COFs@Zn and ZnF<sub>2</sub>, produced during Zn electroplating, promoted Zn<sup>2+</sup> dissolution and homogenized the Zn<sup>2+</sup> flux. These effects effectively inhibited side reactions and Zn dendrite growth. In addition, the uniform and dense COFs prevented direct contact between Zn and the electrolyte, which improved the corrosion resistance of the zinc anode. Thus, the symmetric cells assembled using COFs@Zn demonstrated a stable cycle performance of over 1680 h at 1 mA cm<sup>−2</sup>@1 mAh cm<sup>−2</sup>, which significantly surpassed the performance of bare zinc symmetric batteries. In addition, full cells protected by COFs maintained an ultra-long cycle stability of over 3500 cycles at 2 A g<sup>−1</sup>. This strategy of developing a fluorinated artificial interface layer represents a promising approach for designing high-performance AZMBs.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138369"},"PeriodicalIF":9.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588283","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}
引用次数: 0
In situ observation of soft X-ray-triggered nanoscale phase transitions in perfluorocarbon microdroplets 全氟碳微滴中软x射线触发纳米级相变的原位观察
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-06 DOI: 10.1016/j.jcis.2025.138314
Yuwen Ji , Yao Wang , Mingzheng Fang , Limin Zhou , Xingya Wang , Nan Guan , Jun Hu , Yi Gao , Yi Zhang , Lijuan Zhang
{"title":"In situ observation of soft X-ray-triggered nanoscale phase transitions in perfluorocarbon microdroplets","authors":"Yuwen Ji ,&nbsp;Yao Wang ,&nbsp;Mingzheng Fang ,&nbsp;Limin Zhou ,&nbsp;Xingya Wang ,&nbsp;Nan Guan ,&nbsp;Jun Hu ,&nbsp;Yi Gao ,&nbsp;Yi Zhang ,&nbsp;Lijuan Zhang","doi":"10.1016/j.jcis.2025.138314","DOIUrl":"10.1016/j.jcis.2025.138314","url":null,"abstract":"<div><div>Microscale liquid-gas phase transitions are common in nature and have significant applications in ecosystems, chemical engineering, and biomedicine. Understanding the mechanisms behind these transitions is crucial. The amorphous intermediate state, with its disordered structures and metastable properties, is key to the phase transition process. However, traditional techniques are ineffective for achieving in situ detection with multiscale, multiphase, and submicron resolution. The thermodynamic and kinetic processes of forming these states from submicron droplets to bubbles are still not well understood. In this study, we utilized a scanning transmission soft X-ray microscopy technique based on a synchrotron accelerator. For the first time, we achieved high-resolution in-situ observation of the growth and evolution of nanobubbles (NBs) within low-boiling-point perfluorohexane (PFH) microdroplets (less than 10 μm). Size effects profoundly influence phase transition dynamics: as the droplet size decreases, the phase transition is initially promoted and then inhibited. Microdroplets near 1 μm exhibit unique bulk vaporization behavior. Additionally, the nucleation rate of PFH-derived vapor NBs at the gas-liquid interface is significantly higher than in non-interface regions, highlighting the critical role of interface effects. Our approach visualizes nanoscale nucleation dynamics and interface effects, challenging traditional assumptions about size-dependent interfacial phenomena. These findings have significant implications for fields such as targeted drug delivery and environmental remediation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138314"},"PeriodicalIF":9.4,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604192","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}
引用次数: 0
Solution-processable phototransistor of PbS quantum dots/ZnO for highly responsive 1550 nm near infrared photodetection 溶液可处理的PbS量子点/ZnO光电晶体管,用于高响应的1550 nm近红外光电探测
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-06 DOI: 10.1016/j.jcis.2025.138313
Zexun Pan , Jiayi Zhang , Lei Zhang , Huili Wei , Wei Tang , Liangyou Lin , Heming Deng , Peng Fan , Jingwen Qian , Jinhua Li
{"title":"Solution-processable phototransistor of PbS quantum dots/ZnO for highly responsive 1550 nm near infrared photodetection","authors":"Zexun Pan ,&nbsp;Jiayi Zhang ,&nbsp;Lei Zhang ,&nbsp;Huili Wei ,&nbsp;Wei Tang ,&nbsp;Liangyou Lin ,&nbsp;Heming Deng ,&nbsp;Peng Fan ,&nbsp;Jingwen Qian ,&nbsp;Jinhua Li","doi":"10.1016/j.jcis.2025.138313","DOIUrl":"10.1016/j.jcis.2025.138313","url":null,"abstract":"<div><div>Due to the low-cost in manufacturing and good compatibility with flexible substrate, lead sulfide quantum dots (PbS QDs) are increasingly regarded as a promising active material candidate for next-generation near-infrared (NIR) photodetectors. In this study, a highly sensitive phototransistor of composite film of PbS QDs and ZnO are demonstrated through combining the excellent light absorption properties of PbS QDs with the high carrier mobility of ZnO. The PbS QDs /ZnO hybrid phototransistors exhibits an ultrahigh responsivity (<em>R</em>) of 1.87 × 10<sup>2</sup> A/W and detectivity (<em>D</em><sup>⁎</sup>) of 2.81 × 10<sup>12</sup> Jones under 1550 nm NIR illumination. Furthermore, a 3 × 3 phototransistor array is successfully fabricated to demonstrate their potential of applications in NIR image sensor systems. Our research validates the PbS QDs as a possibility for future optoelectronic applications.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138313"},"PeriodicalIF":9.4,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580229","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}
引用次数: 0
Promoting selective dephosphorylation and aromatic nitroreduction by in-situ anchoring gold/silver bimetallic nanoparticles on ceria/polyethyleneimine nanosheets 原位锚定金/银双金属纳米颗粒在二氧化铈/聚乙烯亚胺纳米片上促进选择性去磷酸化和芳香硝基还原
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-05 DOI: 10.1016/j.jcis.2025.138354
Xiangming Li , Qingpeng Chen , Xianyang Yang , Ziqing Yan , Zemin Li , Kun Nie , Zequn Ma , Guiyin Li , Meng Fu
{"title":"Promoting selective dephosphorylation and aromatic nitroreduction by in-situ anchoring gold/silver bimetallic nanoparticles on ceria/polyethyleneimine nanosheets","authors":"Xiangming Li ,&nbsp;Qingpeng Chen ,&nbsp;Xianyang Yang ,&nbsp;Ziqing Yan ,&nbsp;Zemin Li ,&nbsp;Kun Nie ,&nbsp;Zequn Ma ,&nbsp;Guiyin Li ,&nbsp;Meng Fu","doi":"10.1016/j.jcis.2025.138354","DOIUrl":"10.1016/j.jcis.2025.138354","url":null,"abstract":"<div><div>Addressing the dual challenges of phosphorus resource scarcity and organic pollutant treatment, this study develops a bifunctional ceria/polyethyleneimine/AuAg (CeO<sub>2</sub>/PEI/AuAg) catalyst through self-assembly and in-situ reduction anchoring strategies for both efficient dephosphorylation and aromatic nitroreduction. Its components optimize the catalytic process through multilevel synergy: i) the oxygen vacancies in the CeO<sub>2</sub> component interact with H<sub>2</sub>O to generate lots of protonated hydroxyl groups, which not only enhance the adsorption for phosphates but also facilitate continuous electron enrichment through the Ce<sup>3+</sup>/Ce<sup>4+</sup> redox cycle, ii) the PEI component enhances the interfacial enrichment of phosphates, BH<sub>4</sub><sup>−</sup>, and p-nitrophenol through amino group protonation and serves as a green reductant to drive the in-situ uniform anchoring of AuAg bimetallic nanoparticles onto the CeO<sub>2</sub> support, iii) the AuAg bimetallic component directs the electrons enriched in CeO<sub>2</sub> oxygen vacancies and the reducing electrons provided by BH<sub>4</sub><sup>−</sup> to dual reaction sites via strong metal-support interactions and hierarchical electron transfer channels, thereby improving reaction kinetics. Experimental results show that this catalyst achieves a 3.645 × 10<sup>−3</sup> μmol g<sup>−1</sup> min<sup>−1</sup> dephosphorylation efficiency at 25 °C, with a 4.5 mol g<sup>−1</sup> min<sup>−1</sup> p-nitrophenol reduction rate (turnover frequency: 539 h<sup>−1</sup>), outperforming most previously reported catalysts. This study provides a novel multifunctional material platform for sustainable phosphorus management and organic pollutant degradation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138354"},"PeriodicalIF":9.4,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580238","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}
引用次数: 0
Self-assembled cellulose nanofibers/graphene aerogel-supported phase change composites with a three-dimensional network structure for enhanced solar-thermal energy conversion and storage 具有三维网络结构的自组装纤维素纳米纤维/石墨烯气凝胶支撑相变复合材料,用于增强太阳能热能转换和储存
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-05 DOI: 10.1016/j.jcis.2025.138343
Junchao Ren, Rui Tan, Chenglei Huang, Jianlong Chen, Mengde Huang, Qingfa Zhang
{"title":"Self-assembled cellulose nanofibers/graphene aerogel-supported phase change composites with a three-dimensional network structure for enhanced solar-thermal energy conversion and storage","authors":"Junchao Ren,&nbsp;Rui Tan,&nbsp;Chenglei Huang,&nbsp;Jianlong Chen,&nbsp;Mengde Huang,&nbsp;Qingfa Zhang","doi":"10.1016/j.jcis.2025.138343","DOIUrl":"10.1016/j.jcis.2025.138343","url":null,"abstract":"<div><div>The complex preparation process, use of toxic reagents, and high cost are significant challenges associated with graphene-based composite phase change materials (PCMs). One of the objectives of this research is to prepare cellulose nanofibers (CNFs)@graphene aerogel (GA) using a hydrothermal method followed by freeze-drying. The ultimate goal is to explore the effect of incorporating CNFs@GA into polyethylene glycol (PEG) to form PEG/CNFs@GA composites. The results showed that a three-dimensional network structure of CNFs@GA was successfully constructed during the hydrothermal reduction process. Additionally, the CNFs@GA removed residual oxygen-containing groups and repaired lattice defects in the reduced graphene oxide. PEG was encapsulated through hydrogen bond interaction between CNFs@GA and PEG, resulting in the formation of PEG/CNFs@GA composites. Among all the PEG/CNFs@GA samples, PEG/CNFs@GA-4 exhibited excellent thermal energy storage, solar-thermal conversion efficiency, and thermal cycling stability. This performance is attributed to its high energy storage density of 167.5 J/g, solar-thermal efficiency of 91.03%, and slight phase change enthalpy loss of only 3.34% after 100 thermal cycles. The proposed hydrothermal strategy provides valuable insights into the development of next-generation photothermal PCMs with low cost, green synthesis, and tunable structure for efficient solar energy utilization.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138343"},"PeriodicalIF":9.4,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588280","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}
引用次数: 0
Photo- and electrocatalytic conversion driven by transition metal-assisted ferroelectric heterojunction 过渡金属辅助铁电异质结驱动的光催化和电催化转化
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-07-05 DOI: 10.1016/j.jcis.2025.138359
Nan Mu , Ruowen Zhang , Yanyu Liu , Wei Zhou
{"title":"Photo- and electrocatalytic conversion driven by transition metal-assisted ferroelectric heterojunction","authors":"Nan Mu ,&nbsp;Ruowen Zhang ,&nbsp;Yanyu Liu ,&nbsp;Wei Zhou","doi":"10.1016/j.jcis.2025.138359","DOIUrl":"10.1016/j.jcis.2025.138359","url":null,"abstract":"<div><div>Ferroelectric polarization switching can dynamically modulate the catalytic activity via electronic phase transitions. Herein, we systematically investigated the hydrogen evolution reaction, oxygen evolution and reduction reaction activities of heterostructures formed by stacking transition metal-doped graphene‑zinc oxide (TM@g-ZnO) and ferroelectric In<sub>2</sub>Se<sub>3</sub> monolayers using density functional theory calculations. Pt@g-ZnO/In<sub>2</sub>Se<sub>3</sub> exhibits superior hydrogen evolution reaction (HER) performance, while Ni@g-ZnO/<span><math><mrow><mo>↓</mo></mrow></math></span>-In<sub>2</sub>Se<sub>3</sub> and Pd@g-ZnO/<span><math><mrow><mo>↑</mo></mrow></math></span>-In<sub>2</sub>Se<sub>3</sub> are potential bifunctional catalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). Notably, the polarization-induced semiconductor-to-metal transition enables interconversion between photo- and electrocatalysis. Non-adiabatic molecular dynamics simulation shows that TM@g-ZnO/<span><math><mrow><mo>↑</mo></mrow></math></span>-In<sub>2</sub>Se<sub>3</sub> has a long hot-carrier lifetime in photocatalysis, and conductivity calculation indicates that TM@g-ZnO/<span><math><mrow><mo>↓</mo></mrow></math></span>-In<sub>2</sub>Se<sub>3</sub> has high electrical conductivity in electrocatalysis. Furthermore, machine learning identifies the <em>d</em>-electron number of TM dopants as the dominant factor governing catalytic activity. These findings not only benefit the exploration of efficient multifunctional catalysts but also provide novel photoelectrocatalytic conversion mechanisms.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"700 ","pages":"Article 138359"},"PeriodicalIF":9.4,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588278","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}
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