Journal of Colloid and Interface Science最新文献

{"title":"Energy transfer engineering for programmable fluorescence dynamics in CsPbBr3 perovskite: Toward multimode anti-counterfeiting","authors":"Zhen Wu ,&nbsp;Xin Zhang ,&nbsp;Yiyuan Tang ,&nbsp;Wenzhao Wang ,&nbsp;Qiming Zou ,&nbsp;Lvming Qiu ,&nbsp;Jiani Liu ,&nbsp;Bin Hu ,&nbsp;Min Gong ,&nbsp;Guojie Wang","doi":"10.1016/j.jcis.2026.140063","DOIUrl":"10.1016/j.jcis.2026.140063","url":null,"abstract":"<div><div>Smart fluorescent materials with tunable fluorescence in response to external stimuli are of great interest for anti-counterfeiting applications. Herein, we develop a photoresponsive fluorescent material (PRFM) SPD-CsPbBr₃@PMMA that integrates perovskite CsPbBr₃ with photochromic spiropyran (SPD) in poly(methyl methacrylate) (PMMA), exhibiting multimode fluorescence outputs for advanced anti-counterfeiting applications. The blue-excitable CsPbBr₃ nanocrystals enable SPD-CsPbBr₃@PMMA a stable green fluorescence at 450 nm excitation wavelength. Ultraviolet light irradiation of SPD-CsPbBr₃@PMMA induces the isomerization of SPD from closed-ring to open-ring form and subsequently gives a stable red fluorescence. Fluorescence decay spectra and theoretical calculations indicate that an efficient energy transfer occurs from CsPbBr₃ to the open-ring SPD, thereby leading to significant changes in fluorescence. Upon irradiation with visible light (400–750 nm), SPD is reverted to closed-ring form, accompanied by the restoration of green fluorescence. SPD-CsPbBr₃@PMMA can exhibit complex and tunable fluorescence changes under room light, blue light, and ultraviolet light modes, making it exceptionally suited for anti-counterfeiting applications. A novel strategy for information anti-counterfeiting by combining SPD-CsPbBr₃@PMMA with Morse code and other innovative anti-counterfeiting platforms have been successfully developed. Overall, this study introduces an innovative approach to constructing multimode PRFMs, elucidates the design principles underlying fluorescence-tunable perovskite, and inspires further development in advanced anti-counterfeiting materials.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"711 ","pages":"Article 140063"},"PeriodicalIF":9.7,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135639","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":"Electron transfer induced ruthenium-oxygen bond compression via d-band Center tailoring for efficient acidic overall water splitting","authors":"Yiwei Jiang ,&nbsp;Yu Qiu ,&nbsp;Yuwei Zhang ,&nbsp;Shuting Liu ,&nbsp;Xueli Li ,&nbsp;Yantu Zhang ,&nbsp;Xiaoting Zhang","doi":"10.1016/j.jcis.2026.140035","DOIUrl":"10.1016/j.jcis.2026.140035","url":null,"abstract":"<div><div>Ruthenium-based materials are recognized as theoretically ideal bifunctional catalysts for acidic overall water splitting. However, their practical implementation remains constrained by critical challenges, such as the dissolution and over-oxidation of active sites under operating conditions. In this study, through precise modulation of the electronic structure at the Ru-RuO₂ heterojunction interface without incorporating any foreign metal elements, we successfully constructed a unique configuration characterized by compressed Ru<img>O bonds. Combined experimental characterization and theoretical calculations reveal that interfacial electron transfer induces the compression of Ru<img>O bond lengths, which subsequently leads to a downshift of the d-band center compared to pure RuO₂. This electronic modulation effectively optimizes the adsorption behavior of both oxygen and hydrogen intermediates, thereby simultaneously lowering the energy barriers for the oxygen evolution reaction and the hydrogen evolution reaction. The synthesized Ru-RuO₂@NC catalyst shows impressive bifunctional performance in an acidic electrolyte environment, reaching overpotentials as low as 161 mV for the oxygen evolution reaction and 53 mV for the hydrogen evolution reaction at a current density of 10 mA cm⁻². Additionally, it demonstrates outstanding durability, sustaining stable performance for more than 420 h at 10 mA cm⁻² during oxygen evolution reaction (OER) and 160 h even at a high current density of 500 mA cm⁻² for the hydrogen evolution reaction (HER). This research offers fresh theoretical perspectives and a methodological framework aimed at realizing efficient and stable acidic overall water splitting by means of interface bond manipulation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140035"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146140683","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":"A multifunctional biomass-derived three-dimensional solar evaporator constructed from wasted herbal medical slag for efficient steam generation and water purification","authors":"Siqi Wang ,&nbsp;Jingjing Fu ,&nbsp;Hongjun Chen ,&nbsp;Haiyan Wang ,&nbsp;Yuxin Yang ,&nbsp;Xiaoran Huang ,&nbsp;Xiu He ,&nbsp;Jun Liu ,&nbsp;Huang Zhou","doi":"10.1016/j.jcis.2026.139994","DOIUrl":"10.1016/j.jcis.2026.139994","url":null,"abstract":"<div><div>Solar-driven desalination and wastewater purification represent sustainable approaches for clean freshwater production. However, process scalability is limited by insufficient sterilization, complicated fabrication procedures, and poor mechanical stability. In this study, a multi-functional hydrogel-supported solar (MHS) evaporator is proposed that incorporates carbonized Chinese herbal medicine residues in a sodium alginate (SA) gel matrix fabricated using a scalable and cost-effective procedure. The MHS evaporator achieved a water evaporation rate of 2.69 kg m⁻² h⁻¹ with an efficiency of 97.7% under one-sun irradiation, demonstrating superior sterilization performance and mechanical durability. Furthermore, the MHS delivers effective seawater desalination and wastewater purification, reducing ionic contaminants by three orders of magnitude while achieving greater than 99% removal of organic pollutants and heavy metals. The purified water exhibits enhanced purity, with greater than 99% elimination of pathogens (<em>E. coli</em> and <em>S. aureus</em>), ensuring viable control of biological contamination during the desalination process. In addition, the MHS evaporator maintained consistent and stable performance over a 30-day period. By incorporating superior sterilization, salt resistance, efficient photothermal conversion, and a high degree of mechanical strength in a scalable design, the MHS evaporator represents a highly promising solution to address freshwater scarcity in resource-limited environments.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139994"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071104","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":"Molecular insights into sphingomyelin membrane alterations induced by very long-chain lysophospholipids","authors":"María Isabel Cabrera ,&nbsp;Yolanda De Diego-Otero ,&nbsp;Raquel Yahyaoui ,&nbsp;Laura R. Arriaga ,&nbsp;Juan L. Aragones ,&nbsp;Pablo Llombart","doi":"10.1016/j.jcis.2026.139886","DOIUrl":"10.1016/j.jcis.2026.139886","url":null,"abstract":"<div><div><em>Hypothesis</em> Lipid membrane structure and mechanics are shaped by the molecular geometry and interactions of their amphiphiles. Very long-chain lysophosphatidylcholines (VLC-LysoPCs), with extended hydrophobic tails, insert into bilayers and perturb packing across leaflets. The VLC-LysoPCs 1-tetracosanoyl- (C24) and 1-hexacosanoyl- (C26) differ in chain length and insertion depth, and are thus expected to differentially modulate bilayer structure and mechanics. When co-incorporated, their distinct insertion depths and conformational behaviors may act cooperatively to reorganize lipid packing and modulate interleaflet coupling in ways unattainable by either species individually. Such synergy may underlie membrane remodeling during pathological VLC-lipid accumulation and offer design principles for synthetic membranes with tunable mechanics. <em>Simulations</em> Atomistic molecular dynamics simulations were performed on sphingomyelin bilayers containing either C24- or C26-LysoPCs, or both co-incorporated. Free energy calculations revealed the insertion mechanisms and thermodynamic profiles of each species. Structural remodeling, conformational dynamics, lipid diffusion, and interleaflet friction were evaluated through equilibrium and non-equilibrium simulations. <em>Findings</em> The insertion free energy of VLC-LysoPCs decreases when both C24 and C26 species are co-present in the sphingomyelin bilayer, indicating a thermodynamically cooperative effect that lowers the energetic cost of further incorporation. While C26 promotes extension of C24, C24 dampens the extension of C26, resulting in mutually modulated conformations that affect membrane packing and facilitate further incorporation. These changes reduced sphingomyelin mobility and decouple membrane leaflets. This is the first report to show that mixtures of VLC-LysoPCs with different chain lengths can cooperatively reshape membrane architecture and mechanics, offering design principles for tailored lipid-based membranes.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139886"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146103232","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":"Entropy-driven design of non-metallic heteroatoms codoped hollow carbon nanocages for superior oxygen electrocatalysis","authors":"Xinshuang Lin ,&nbsp;Hangyuan Xing ,&nbsp;Jiabei Yu ,&nbsp;Depeng Zhang ,&nbsp;Xinyu Lu ,&nbsp;Yuqing Zhang ,&nbsp;Yimeng Sun ,&nbsp;Sen Zhang ,&nbsp;Chao Deng","doi":"10.1016/j.jcis.2026.139990","DOIUrl":"10.1016/j.jcis.2026.139990","url":null,"abstract":"<div><div>The design of functional materials with increasing entropy has become a hot field in recent years. Motivated by the traditional concept of high entropy (HE), the anionic doping with multiple heteroelements towards increasing entropy has been considered to be a new clue to design highly efficient catalysts. In present work, we report the design of a non-metallic anion high-entropy (AHE) codoped hollow carbon nanocage as an oxygen catalyst for Zn-air batteries (ZAB). A series of non-metallic heteroatoms, including nitrogen (N), phosphorus (P), sulfur (S), boron (B), and fluorin (F), are employed as anionic dopants to construct the AHE codoped carbon nanocages. The influences of AHE engineering on the electrocatalytic behaviors of the hollow carbon nanocages in the oxygen reactions are explored. Through synergistic modulations on anionic doping engineering and structure design, the AHE doped hollow carbon nanocages achieve the superior oxygen reduction reaction (ORR) activities and faster kinetics in comparison to the counterparts of anionic medium-entropy (AME, e. g. N, P, S, B), anionic low-entropy (ALE, e. g. N, P, S, or N, P/S, or N) doped and undoped samples. Density functional theory (DFT) calculations reveal that the AHE engineering regulates the electronic structure, adjust the energy barrier, and modulate oxygen intermediates adsorption capability, which synergistically accelerate the ORR behaviors. In addition, the full ZAB battery integrated with the AHE codoped hollow carbon nanocages cathode delivers the high power density (212.1 W kg⁻¹) and long cycle life (500 h cycling). More impressively, the solid-state ZAB with the hydrogel electrolyte and AHE doped carbon nanocage cathode shows the good flexibility and high adaptation in a wide temperature range. Therefore, this work not only introduces a synergistic modulation strategy to optimize the anion high-entropy catalysts for oxygen catalysis, but also promotes the fast development of high-performance ZAB towards different working conditions.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139990"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146111830","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 FeCoNiCrMn high-entropy alloy in N-doped carbon fiber as a robust catalyst for boosting sulfur redox kinetics","authors":"YuFei Zhang,&nbsp;LiRong Zhang,&nbsp;FengFeng Han,&nbsp;Yang Zhao,&nbsp;HongXu Su,&nbsp;Lu Li,&nbsp;LiLi Wu,&nbsp;XiTian Zhang,&nbsp;Qi Jin","doi":"10.1016/j.jcis.2026.139999","DOIUrl":"10.1016/j.jcis.2026.139999","url":null,"abstract":"<div><div>Lithium‑sulfur batteries (LSBs) suffer from lithium polysulfide (LiPS) shuttling and slow redox kinetics. To mitigate these issues, we report an efficient electrocatalytic interlayer based on a FeCoNiCrMn high-entropy alloy embedded in N-doped carbon nanofibers (HEA@NCNF). The multi-metallic HEA offers abundant active sites, while the N-doped carbon shell not only prevents HEA particle agglomeration and metal leaching, but also establishes a three-dimensional conductive network. Combined X-ray photoelectron spectroscopy and density functional theory calculations elucidate the underlying mechanism: electron modulation from the N-doped carbon layer raises the d-band center of the HEA, thereby strengthening LiPS adsorption and promoting its electrocatalytic conversion. Consequently, the HEA@NCNF interlayer functions as an efficient “trap-and-convert” reactor for LiPSs, which simultaneously suppresses shuttle effects and accelerates redox kinetics. The cells with HEA@NCNF demonstrate exceptional cycling and rate performance, with a capacity decay of only 0.023% per cycle over 1500 cycles at 1C. Remarkably, this superior performance extends to challenging conditions, including high sulfur loading (≥ 7 mg cm⁻²), lean electrolyte, and high-rate operation. This work demonstrates a strategy of integrating HEAs with conductive N-doped carbon matrices to create a synergistic trap-convert mediator for LiPSs.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139999"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146111738","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":"Photoluminescence of silicon nanorods via plasmonic gold nanopore arrays","authors":"Yizhi Wu ,&nbsp;Yankai Rong ,&nbsp;Mingchao Ren ,&nbsp;Xiaoliang Xu","doi":"10.1016/j.jcis.2026.140000","DOIUrl":"10.1016/j.jcis.2026.140000","url":null,"abstract":"<div><div>Silicon luminescence remains a significant challenge, and its origin is intense debate ever since. Here we show, for the first time, a luminescent strategy involving silicon nanorods coupled with plasmonic gold nanopore arrays. It is demonstrated that the luminescence intensity of silicon nanorods induced by plasmonic gold nanopore arrays is nine times higher than that of pure silicon nanorod samples. Despite the absence of an insulating spacer between the gold nanopore arrays and silicon nanorods, no luminescence quenching is observed. Furthermore, we employ finite difference time domain simulations to map the electric field distribution and estimate a Purcell factor of 5, which is lower than the experimentally measured luminescence enhancement. This indicates that the observed luminescence enhancement is only partially attributable to the Purcell effect. Importantly, the Purcell effect would not cause a shift in the luminescence peak, whereas a significant peak shift is observed in our experiments. Based on these facts, a novel luminescence mechanism is proposed to complementally account for the remarkable luminescence enhancement observed in our experiments. Plasmonic gold nanopore arrays-induced energy level splitting may appear in silicon nanorods, which generates a localized direct bandgap, thereby yielding enhanced visible light emission.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140000"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146111745","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":"Biomimetic spatially graded electrolytes: facilitating rapid ion conduction and dendrite-mitigated operation in solid-state lithium batteries","authors":"Yupeng Wang,&nbsp;Hongying Hou,&nbsp;Tingting Yan,&nbsp;Yongsheng Yan,&nbsp;Xiaohua Yu","doi":"10.1016/j.jcis.2026.139989","DOIUrl":"10.1016/j.jcis.2026.139989","url":null,"abstract":"<div><div>Electrode-electrolyte interfaces are of paramount significance in solid-state batteries. However, the enhancement of lithium (Li) conduction and the mitigation of Li dendrite formation constitute a dual challenge to interfacial structural design, as conventional rigid interfaces fail to balance ionic mobility and mechanical blocking. Herein, we report a biomimetic soft-hard-soft hierarchical architecture as an interfacial transition layer between the anode and solid electrolyte. Breaking from conventional rigid designs, this architecture leverages synergistic layer interactions to redistribute interfacial stress: the soft layer's electrospun network establishes 3D ion-transport pathways that accelerate Li⁺ conduction, while the poly(vinylidene fluoride) (PVDF) hard layer—mechanically reinforced by the underlying soft substrate—simultaneously suppresses dendrite penetration and enhances structural integrity. Consequently, the hierarchical structure achieves a tensile strength of 49.2 ± 2.1 MPa (<em>n</em> = 3) MPa, an electrochemical window of 5.20 ± 0.08 V (n = 3), and an ionic conductivity of (2.82 ± 0.09) × 10⁻⁴ S cm⁻¹ (<em>n</em> = 3) cm⁻¹ at 25 °C. This performance directly enables high-performance cycling in LiFePO₄ || Li cells 136.3 ± 2.8 mAh g⁻¹ (<em>n</em> = 3) at 1.0C, 93.8 ± 0.8% (n = 3) capacity retention after 200 cycles, 99.5 ± 0.3% (n = 3) coulombic efficiency). The ionic conductivity and interfacial stability of the novel interface are significantly superior to those of commercial solid-state electrolyte films. This study highlights the potential of the bio-inspired spatial gradient electrolyte to simultaneously enhance Li⁺ conductivity and mitigate dendrite formation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139989"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136929","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":"Regulating hydrogen-bond network via a low-viscosity electrolyte for hydrogen evolution reaction-free aqueous sodium-ion batteries","authors":"Qianlong Zhang ,&nbsp;Min Wang ,&nbsp;Yutao Shi ,&nbsp;Wei Zhang ,&nbsp;Yilun Hong ,&nbsp;Danni Zhu ,&nbsp;Yixuan Liang ,&nbsp;Yuyang Wu ,&nbsp;Xiaohui Chen ,&nbsp;Zhidong Chen ,&nbsp;Hailin Shen ,&nbsp;Zhenghui Pan","doi":"10.1016/j.jcis.2026.140038","DOIUrl":"10.1016/j.jcis.2026.140038","url":null,"abstract":"<div><div>Aqueous sodium-ion batteries (ASIBs) have emerged as one of the most promising candidates for large-scale energy storage devices, owing to their inherent non-flammability, abundant resources and low cost. However, the water-induced hydrogen evolution reaction (HER) on the anode surface usually leads to low Coulombic efficiency (CE) and limited cycling stability. In this study, we propose a novel aqueous electrolyte recipe composed of H₂O/DMF/TTE-NaTFSI to mitigate the issue of HER. On the one hand, the 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (TTE), acting as a diluent, is highly hydrophobic. It disrupts the hydrogen-bonding network of H₂O, thereby enhancing solvation kinetics. Furthermore, the fluorinated moieties of TTE interact with H₂O molecules via strong dipole interactions, reducing solvent mobility and optimizing the Na⁺ solvation sheath. On the other hand, the <em>N</em>, <em>N</em>-dimethylformamide (DMF) serves as a co-solvent that promotes miscibility between aqueous phase and TTE while restructuring the hydrogen-bonding network within the solvation shell. DMF and TTE regulate synergistically the primary solvation structure, stabilizing Na⁺ ions via strengthened anion coordination and effectively suppressing HER. Consequently, the ASIB demonstrates exceptional cyclic stability, retaining 99.2% of its capacity after 1000 cycles at 1C and 96.3% after 100 cycles at 2C in Na₃V₂(PO₄)₃/C full cells. This work presents a promising strategy to suppress HER through the synergistic interaction between DMF and TTE, enhancing electrochemical performance.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140038"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146137098","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":"Combination of electronic structure regulation and controllable phase transition engineering for urea-assisted energy-saving hydrogen production","authors":"Tongxue Zhang ,&nbsp;Mengmeng Jin ,&nbsp;Jingming Bao ,&nbsp;Mingwei Yang ,&nbsp;Shuai Liu ,&nbsp;Wenting Cai ,&nbsp;Ke Fan ,&nbsp;Kaiwei Wang ,&nbsp;Bingxin Zhu ,&nbsp;Xubin Zhang ,&nbsp;Fumin Wang","doi":"10.1016/j.jcis.2026.140018","DOIUrl":"10.1016/j.jcis.2026.140018","url":null,"abstract":"<div><div>Utilizing the thermodynamically favorable urea oxidation reaction (UOR) as a substitute for the oxygen evolution reaction (OER) in conventional water electrolysis offers a viable method for wastewater treatment and energy-efficient hydrogen generation. A series of samples with abundant cation vacancies were synthesized via a hydrothermal method followed by alkaline etching. The electronic and crystal structures of the catalysts were simultaneously modulated by precisely tuning the concentration of the vacancy-inducing medium. The β-type NiCo_v 1:1–2% with abundant cation vacancies demonstrates superior UOR activity, with just 1.31 and 1.35 V vs. RHE needed to reach current densities of 10 and 100 mA cm⁻², respectively. Characterization experiments indicate that the optimization of electronic structure through cation vacancies and distinctive multilayered flake morphology can enhance the number of active sites and improve mass transfer efficiency. A series of in situ measurements further corroborate the rapid yet moderate phase transitions of NiCo_v 1:1–2%. Theoretical calculations demonstrate that the introduction of cation vacancies optimizes the balance between reactant adsorption and product desorption, leading to a reduced Gibbs free energy barrier for the rate-determining step of UOR. This study offers valuable guidance for the rational design of efficient and versatile catalysts for small-molecule oxidation reactions.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140018"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117252","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}