Journal of Colloid and Interface Science最新文献

{"title":"Dual kinetics-enhanced crystalline BiOF hollow nanorods toward high-capacity and high-rate aqueous alkaline batteries","authors":"Yuntian Lan ,&nbsp;Qiaoling Bi ,&nbsp;Zhen Zhang ,&nbsp;Yuzhan Liu ,&nbsp;Fengming Zhou ,&nbsp;Qi Zhang ,&nbsp;Zexing Wu ,&nbsp;Jiarun Li ,&nbsp;Zhenyu Xiao","doi":"10.1016/j.jcis.2026.140028","DOIUrl":"10.1016/j.jcis.2026.140028","url":null,"abstract":"<div><div>Lack of double-high (high energy density and power density) anode materials is the key bottleneck for the application of Aqueous alkaline batteries (AABs). Although the emergence of Bismuth-based materials provides an opportunity to solve this issue, due to their high theoretical capacity <em>via</em> a three-electron redox reaction and suitable operating potential, their restricted ion diffusion kinetics <em>via</em> closed-packed atomic arrangement limit their application performance. Herein, the bismuth oxyfluoride hollow nanorods (BiOF-HNs) with intrinsic layer atom configuration have been constructed by the crystallization optimization and morphology engineering synergistic strategy during MOF etching process. Bi³⁺ hydrolysis is the key points to achieve the co-precipitating and repining reactions of BiOF at the surface of Bi MOF for hollow nanorods morphology. The BiOF-HNs deliver dramatically increased electron conductivity and ion transport ratio with the work function of 6.42 eV and OH⁻ diffusion value of 2.11 × 10⁻¹³ cm² s⁻¹. Therefore, the optimized BiOF-HNs electrode delivers a remarkable specific capacity of 342.2 mAh g⁻¹ (1232 F g⁻¹) at 1 A g⁻¹ and maintains 86% capacity retention at 20 A g⁻¹. Furthermore, the assembled BCNP (basic cobalt/nickel phosphate)//BiOF-HNs AABs achieve a high energy density of 157.81 Wh kg⁻¹ at 1.28 kW kg⁻¹ and outstanding cycling stability (81% after 9000 cycles). The exploration of BiOF materials with morphology and crystalline optimization in AABs application, may offer new insights of design high performance aqueous anode materials.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140028"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117414","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":"Coupling urea production and energy output in Zn-nitrate/carbon dioxide batteries enabled by porous copper‑nickel bimetallic catalysts","authors":"Guoning Chen ,&nbsp;Jianbing Chen ,&nbsp;Sanshuang Gao ,&nbsp;Jun Li ,&nbsp;Bohao Chang ,&nbsp;Xuguang An ,&nbsp;Linfeng Xiao ,&nbsp;Hao Cheng ,&nbsp;Guangzhi Hu ,&nbsp;Yujie Ma","doi":"10.1016/j.jcis.2026.139991","DOIUrl":"10.1016/j.jcis.2026.139991","url":null,"abstract":"<div><div>Conventional urea industry faces dual challenges of high energy consumption and carbon emissions. Although electrochemical co-reduction of nitrates and carbon dioxide (CO₂) offers a promising route for green urea synthesis, its electrical-to-chemical energy conversion efficiency remains constrained by sluggish reaction kinetics and high electrical energy demand. Here, we design and report a nitrogen-doped porous carbon (NC) material embedded with dispersed copper‑nickel bimetal nanoparticles (CuNi/NC) for constructing the first example of a Zn-nitrate/CO₂ battery that can output electricity while generating urea with a superior energy efficiency of 1.51 mol_urea kWh⁻¹ and a urea production rate of 110 mg h⁻¹ g_cat⁻¹. The proposed assembled battery exhibits exceptional stability over 300 <strong>h</strong>, retaining high urea Faradaic efficiency at 36% and yield at 100.9 mg h⁻¹ g_cat⁻¹. <em>In situ</em> X-ray absorption spectroscopy, infrared spectroscopy, and density functional theory simulations confirm that the active metal sites facilitate substrate adsorption and stabilize critical intermediates (*N-C-N, *NH₂, and *NO), thereby effectively accelerating C<img>N coupling. This work breaks the ‘high-energy, single-function’ bottleneck of traditional electrochemical systems, establishing an innovative ‘carbon-negative energy supply’ paradigm for carbon-neutral agriculture and decentralized energy systems.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139991"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146123274","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":"Engineered PtAgCu/MoS2 and hexagonal star-like nitrogen-doped carbon enabling highly efficient sandwich-type electrochemical immunosensing via multiple signal enhancement","authors":"Xiaofei Sun ,&nbsp;Ning Chen ,&nbsp;Shujun Wang ,&nbsp;Yushu Lin ,&nbsp;Jie Zhang ,&nbsp;Shuo Xing ,&nbsp;Qing Liu ,&nbsp;Yueyun Li ,&nbsp;Daopeng Zhang ,&nbsp;Kai Feng ,&nbsp;Jongnam Park ,&nbsp;Feng Tang","doi":"10.1016/j.jcis.2026.139984","DOIUrl":"10.1016/j.jcis.2026.139984","url":null,"abstract":"<div><div>Cardiac troponin I (cTnI), recognized as the gold-standard biomarker for acute myocardial infarction (AMI), plays a crucial role in the early diagnosis and clinical management. Herein, we present a rationally designed multiple signal enhancement strategy for an ultrasensitive electrochemical immunoassay of cTnI. This work integrates the superior catalytic activity of a wrinkled MoS₂-supported PtAgCu ternary alloy (PtAgCu/MoS₂) with the excellent conductivity of hexagonal star-like nitrogen-doped carbon (HS-NC) modified by gold nanoparticles (Au@HS-NC). The PtAgCu alloy, featuring maximized atomic utilization and optimized d-orbital coupling, exhibits outstanding hydrogen peroxide (H₂O₂) electroreduction activity and a large electrochemically active surface area, thereby effectively amplifying the sensing signal. Meanwhile, the precisely designed MoS₂ carrier not only offers abundant anchoring sites and facilitates charge transfer but also enriches H₂O₂ reactant, thereby promoting the catalytic performance of the PtAgCu alloy. Furthermore, as an ideal substrate, the morphologically engineered HS-NC, enriched with nitrogen functionalities, offers a highly conductive framework with ultralarge surface area (1121.80 m² g⁻¹), enabling efficient immobilization of primary antibodies (Ab₁) and stable, accelerated charge transfer, thereby synergistically amplifies the signal output. Benefiting from this multiple amplification strategy, the proposed immunosensor achieves a remarkably low limit of detection of 0.51 fg mL⁻¹, and an exceptionally broad dynamic range (from 10 fg mL⁻¹ to 100 ng mL⁻¹), while exhibits excellent selectivity in complex matrices, maintaining high reproducibility and stability. This work demonstrates a rational multi-amplification design paradigm for constructing high-performance immunosensors and highlights its promising application in AMI early diagnosis.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139984"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077110","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":"Unraveling the spontaneous advancement of precursor films from a liquid reservoir to an isolated wall","authors":"Yung-Ching Wang ,&nbsp;Yi-Min Chen ,&nbsp;Heng-Kwong Tsao ,&nbsp;Yu-Jane Sheng","doi":"10.1016/j.jcis.2026.140007","DOIUrl":"10.1016/j.jcis.2026.140007","url":null,"abstract":"<div><h3>Hypothesis</h3><div>Although the spreading of precursor films associated with total wetting liquids can be observed in droplet wetting or capillary flow, concurrent variations in evolving meniscus shape and transient Laplace pressure complicate the direct observation of the precursor film dynamics. To overcome this challenge, the present study employs a configuration that allows the liquid source to stabilize at the entrance, enabling the advancement of the precursor film to be exclusively monitored and analyzed under a constant driving force.</div></div><div><h3>Methods</h3><div>The spontaneous advancement of precursor films, leaking from a reservoir to an isolated wall, is investigated using many-body dissipative particle dynamics simulations. The influences of surface wettability and the entrance width on the precursor film dynamics are systematically quantified.</div></div><div><h3>Findings</h3><div>The advancing precursor film exhibits diffusion-like behavior, where the propagation length scales with t^1/2. The spreading rate is governed by the interplay between the driving forces, characterized by the spreading coefficient (S) and entrance width (N), and the resistive wall friction. Specifically, the spreading rate increases with S at low wettability but eventually saturates. This saturation suggests that the increase in driving forces is effectively offset by the rising wall friction. Furthermore, widening the entrance facilitates faster spreading by reducing the Laplace pressure.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140007"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077112","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 effect of carboxyl-functionalized benzothiadiazole-based metal-organic frameworks for enhanced photocatalytic carbon‑nitrogen bond formation","authors":"Yujie He ,&nbsp;Hongmei Wang ,&nbsp;Jiao Chen ,&nbsp;Bing Deng ,&nbsp;Zhaohui Wang ,&nbsp;Ping Liu ,&nbsp;Jianli Li","doi":"10.1016/j.jcis.2026.139986","DOIUrl":"10.1016/j.jcis.2026.139986","url":null,"abstract":"<div><div>The development of efficient photocatalysts for carbon‑nitrogen (C<img>N) bond formation from aldehydes is highly desirable for the synthesis of functional organic molecules but remains a significant challenge. Herein, we report a novel imidazobenzothiadiazole-based tricarboxylate compound (H₂Ph-COOH, defined as “T-shaped” ligand), and successfully construct the first single-component metal-organic frameworks (MOFs, UiO-68-Ph-COOH) featuring an exposed carboxyl group. This MOFs was effectively employed in the photocatalytic synthesis of amides from aldehydes and amines. The carboxylated T-shaped ligand-based UiO-68-Ph-COOH exhibits outstanding optoelectronic properties and exceptional photocatalytic activity for amide synthesis at room temperature, achieving high yields (up to 92%) within 12 h, along with long-term durability and excellent stability. In comparison, control MOFs (UiO-68-Bt and UiO-68-Ph) derived from linear ligands showed markedly lower catalytic activity (10% and 16% yields, respectively) under identical reaction conditions. Mechanistic studies reveal that the exposed -COOH groups in UiO-68-Ph-COOH act as Brønsted acid sites, which promote the formation of key amino alcohol intermediate and concurrently facilitate the generation of superoxide radical (O₂^•−). This synergistic effect significantly improves the photocatalytic efficiency for amide synthesis. Additionally, UiO-68-Ph-COOH efficiently catalyzes the formation of benzothiazoles and benzimidazoles (up to 94% yield within 1.5 h). This work provides the first demonstration that a single-component MOFs can independently drive photocatalytic amide synthesis and reveals the exposed -COOH functionalization as a crucial design strategy for MOFs-based photocatalysts, thereby opening new avenues for designing efficient MOFs-based photocatalysis of C<img>N bond formation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 139986"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146123304","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":"Electronic modulation with high-valence metal doping towards high-rate Na4Fe3(PO4)2P2O7 cathode in sodium-ion batteries","authors":"Dandan Chen ,&nbsp;Haonan Xu ,&nbsp;Qiming Duan ,&nbsp;Jiajun Wang ,&nbsp;Yong Jiang","doi":"10.1016/j.jcis.2026.140025","DOIUrl":"10.1016/j.jcis.2026.140025","url":null,"abstract":"<div><div>Na₄Fe₃(PO₄)₂P₂O₇ (NFPP) emerges as a cost-effective structurally stable and environmentally benign cathode material, exhibiting significant potential in the energy storage of sodium-ion batteries. However, inherent low ionic mobility and electronic conductivity of NFPP have affected its power performance. In this study, high-valence transition metal cations (Mo⁶⁺, Ta⁵⁺, Nb⁵⁺, and W⁶⁺) are doped within the NFPP lattice, which induces internal electronic rearrangement and average valence state decrease of Fe cations through distortion of locally corner-sharing FeO polyhedra. The increased Fe<img>O bond lengths within Mo-doped NFPP crystals and altered electronic cloud distribution further validates this ionic charge compensation mechanism. High-valence metal-doping can also decrease the bandgap, enhance average electronic conductivity, as well as lower Na⁺ migration barrier, thus increasing Na⁺ diffusion coefficient by three orders of magnitude. Therefore, the optimized Na₄Fe_2.91Mo_0.09(PO₄)₂P₂O₇ cathode material demonstrates excellent rate performance and outstanding cycling stability (retaining 85.86% capacity after 1300 cycles at 1C). In addition, the universal effectiveness of the high-valence transition metal doping strategy is verified by investigation of Ta⁵⁺, Nb⁵⁺, and W⁶⁺ doping based on experimental characterizations and theoretical calculations. These findings provide a new perspective to modulate electronic structure and ionic transport pathway of NFPP, and shedding light on great application prospects of iron-based mixed polyanion cathode materials.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140025"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130770","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":"π-Conjugation engineering in coordination metallopolymers for advanced electrochromic energy storage windows","authors":"Yuqi Wu ,&nbsp;Bing Cong ,&nbsp;Jingjing Yuan ,&nbsp;Tianyu Song ,&nbsp;Pengwei Zhao ,&nbsp;Xiaogang Zhao ,&nbsp;Danming Chao ,&nbsp;Hongwei Zhou ,&nbsp;Chunhai Chen","doi":"10.1016/j.jcis.2026.140033","DOIUrl":"10.1016/j.jcis.2026.140033","url":null,"abstract":"<div><div>Coordination metallopolymers (CMPs) have emerged as promising candidates for integrated electrochromic energy storage applications, leveraging their tunable structures that allow for precise control over their optical, electronic, and mechanical properties. However, achieving synergistic enhancement in both electrochromic and energy storage performance remains a significant challenge. To address this, we designed and synthesized two novel D-π-D structured CMPs featuring multiple redox-active centers by virtue of a π-conjugation engineering strategy via facile liquid-liquid interfacial polymerization. The resultant device achieved a high optical contrast of 54.1% at 750 nm, an improved area specific capacitance of 30.46 mF·cm⁻², and a rapid switching speed (2.3 s/1.2 s), attributed to efficient intramolecular charge delocalization and rapid charge transfer kinetics, stemming from the D-π-D molecular architecture. The fabricated smart window demonstrates an effective thermal insulation performance of 14.4 °C temperature reduction versus a general glass window. Furthermore, the electric energy involved in electrochromism could be recycled to power an LED for 30 s. This work provides a viable design strategy for developing high-performance CMPs with integrated electrochromic and energy storage functions.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140033"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130733","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":"Tri-functional electrocatalysis with mass transfer-optimized 3D NiCo alloy for continuous energy conversion system","authors":"Gangwen Fu ,&nbsp;Yu Tian ,&nbsp;Yong Gao ,&nbsp;Jingwen Qiu ,&nbsp;Yuxuan Wang ,&nbsp;Wenbo Zhao ,&nbsp;Leiqing Cao ,&nbsp;Junyuan He ,&nbsp;Mengyang Li ,&nbsp;Zhenghui Pan ,&nbsp;Yu Lei ,&nbsp;Zongkui Kou ,&nbsp;Jun Ding ,&nbsp;Xi Xu","doi":"10.1016/j.jcis.2026.140024","DOIUrl":"10.1016/j.jcis.2026.140024","url":null,"abstract":"<div><div>Mass transfer limitations directly govern the utilization efficiency of active sites in gas-involving reactions, thereby hindering intrinsically active sites from functioning effectively at high current densities. Consequently, designing porous structures to improve the transport efficiency of both reactants and products constitutes a central challenge for realizing efficient and stable electrocatalytic processes. To address this challenge, a nickel‑cobalt (NiCo) alloy was fabricated via digital light processing (DLP) technology, and cobalt-nanocarbon (<em>Co</em> NC) active material was incorporated in situ to establish a robust catalytic system. Furthermore, the deliberate structural design promoted bubble mass-transfer kinetics, thereby further improving its performance across multiple catalytic reactions. The electrolysis water device composed of it can operate stably for over 500 h at a current density of 500 mA cm⁻² and a voltage of 1.78 V. The assembled zinc-air battery shows a peak power density of 73.5 mW cm⁻² and outstanding cyclic durability, lasting for over 300 h. More importantly, the assembled integrated device generates an equivalent amount of hydrogen during both day and night. This innovative strategy offers a reliable reference for the practical implementation of three-dimensional electrodes in highly efficient mass transfer reactions.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140024"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146130717","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":"Laser mineralization of per- and polyfluoroalkyl substances on laser-induced graphene","authors":"Negasi K. Weldengus ,&nbsp;Maurício N. Kleinberg ,&nbsp;Christopher J. Arnusch","doi":"10.1016/j.jcis.2026.140040","DOIUrl":"10.1016/j.jcis.2026.140040","url":null,"abstract":"<div><div><em>Per</em>- and polyfluoroalkyl substances (PFAS) are persistent and toxic water pollutants that pose significant environmental and health risks. Various methods exist for PFAS treatment, most of which rely on adsorption. However, these methods often produce byproducts that require additional treatment before disposal. Here we show a facile method for degrading model pollutants perfluorooctanoic acid (PFOA) and trifluoroacetic acid (TFA) using a low energy IR CO₂ laser on a laser-induced graphene (LIG) substrate, with NaOH serving as a mineralizing reagent. Laser treatment achieved up to 68% mineralization and the conversion of strong C<img>F bonds present in PFOA into inorganic fluoride (NaF) was observed depending on the laser power, with optimum performance at 8% power. The fluorine mineralization efficiency increased with a larger Na-to-F molar ratio, up to a ratio of 4.5. Additionally, the LIG substrate was reusable for up to five treatment cycles under the optimal laser power. The method was also applied to a more volatile short chain perfluoroalkyl carboxylate TFA, and up to ∼27% of the organic fluorine was converted to NaF as quantified by ion chromatography. Contact angle measurements for both PFOA- and TFA-treated LIG showed decreased wettability after laser irradiation compared to deionized water (DI)-treated controls, possibly indicating incorporation of fluorine (C<img>F) into the LIG chemical structure surface during degradation. The low cost of the methodology and reuse of the substrate offers a sustainable alternative for PFAS degradation and mineralization that might be incorporated into advanced water purification technologies.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140040"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136990","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":"PtRu nanoparticle catalysts with adjustable electronic environments for efficient low-temperature dehydrogenation of cycloalkanes","authors":"Xiaoqi Zhang ,&nbsp;Aijun Guo ,&nbsp;Shouhui Jiao ,&nbsp;Xiaoxue Wang ,&nbsp;Jiang Wu ,&nbsp;Ankang Jia ,&nbsp;Zheng Zhang ,&nbsp;He Liu ,&nbsp;Yueliang Liu ,&nbsp;Zongxian Wang","doi":"10.1016/j.jcis.2026.140011","DOIUrl":"10.1016/j.jcis.2026.140011","url":null,"abstract":"<div><div>Modulating the electronic structure of active catalytic species to optimise the adsorption and activation steps of reactants is crucial for achieving efficient and stable dehydrogenation of liquid organic hydrogen carriers. In this study, a uniformly dispersed PtRu nanoalloy catalyst (PtRu/Al₂O₃) was successfully prepared on Al₂O₃ sheets through a process strategy combining wet chemical impregnation, low-temperature pre-reduction, and high-temperature annealing. The degree of Pt electron enrichment induced by Ru modification can be precisely controlled by adjusting Pt/Ru ratio, and this enrichment level is positively correlated with Ru coverage. The PtRu alloy with moderate electronic enrichment significantly lowers both the adsorption energy and the C<img>H bond activation energy at key active sites. This facilitated the rapid desorption and transfer of the products, ultimately determining the overall dehydrogenation efficiency. Catalytic tests show that the Pt₂Ru₁/Al₂O₃ catalyst achieves a single-ring cycloalkane dehydrogenation conversion rate of over 99% at 200 °C. Even for decalin, the conversion rate reaches 69% at 230 °C. Furthermore, its apparent activation energy (68.4 kJ/mol) was lower than that of conventional Pt/Al₂O₃, demonstrating the kinetic advantages attributed to the electronic effects in Pt₂Ru₁/Al₂O_3. Both experimental results and theoretical analyses confirm that intermetallic electronic interactions contribute to the enhanced hydrogen production rates, and further elucidate the charge transfer mechanism within the PtRu alloy.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"710 ","pages":"Article 140011"},"PeriodicalIF":9.7,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077115","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}