International Journal of Hydrogen Energy最新文献

{"title":"The synergy between battery and hydrogen storage in stand-alone hybrid systems: A parameterised load approach","authors":"Dan Virah-Sawmy ,&nbsp;Fiona J. Beck ,&nbsp;Bjorn Sturmberg","doi":"10.1016/j.ijhydene.2025.05.324","DOIUrl":"10.1016/j.ijhydene.2025.05.324","url":null,"abstract":"<div><div>Hydrogen is widely considered advantageous for long-duration storage applications, however the conditions under which hydrogen outperforms batteries remain unclear. This study employs a novel load parameterisation approach to systematically examine the conditions under which integrating hydrogen significantly reduces the levelised cost of energy (LCOE).</div><div>The study analyses a broad spectrum of 210 synthetic load profiles, varying independently in duration, frequency, and timing at two Australian locations. This reveals that batteries dominate short, frequent, or well-aligned solar loads, and that hydrogen becomes economically beneficial during prolonged, infrequent, or poorly aligned loads—achieving up to 122 % (Gladstone) and 97 % (Geelong) LCOE improvements under current fuel cell costs, and even higher savings under reduced costs. This systematic method clarifies the load characteristics thresholds that define hydrogen's advantage, providing generalisable insights beyond individual case studies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 266-282"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced anti-corrosion and hydrogen resistance performance for epoxy resin composite coating with modified boron nitride","authors":"Hui-Xia Guo ,&nbsp;Ying-Li Wei ,&nbsp;Jun-Jie Liu ,&nbsp;Cheng-Yu He ,&nbsp;Xiang-Hu Gao","doi":"10.1016/j.ijhydene.2025.05.335","DOIUrl":"10.1016/j.ijhydene.2025.05.335","url":null,"abstract":"<div><div>Traditional hydrogen barrier composite coatings possess weak corrosion resistance and are hard to apply in actual high-pressure hydrogen environments. As a two-dimensional (2D) material, boron nitride (BN) is expected to address this problem due to its high specific surface area, excellent physical barrier properties and electrical insulation properties, but the agglomeration events are easily occurred by the poor dispersibility of BN during the process of fabrication and application. To address above issues, in this work, firstly, hydroxyl groups are successfully grafted onto BN by the NaOH. Then, the corresponding silane alcohols hydrolyzed (AH) by the methoxy group of silane coupling agent are covalently bonded with hydroxyl BN, and eventually form the modified BN. BN-AH/polytetrafluoroethylene (PTFE)/epoxy resin (EP) composite (BN-AH/PTFE/EP) films were prepared using different amounts of modified BN, followed by scrape-coating the BN-AH/PTFE/EP composite material onto different substrates. The electrochemical impedance spectroscopy (EIS) test results showed that the optimal sample was immersed in a 3.5 wt% NaCl solution for 30 d, and the impedance value |Z |_0.01Hz remained at 1.5 × 10⁹ Ω cm². Notably, the impedance is about 2 orders of magnitude higher than that of pure EP coating. Moreover, compared with pure EP coating, its H₂ permeability coefficient decreased by 66.9 %. This is mainly attributed to the good physical barrier performance of BN and the better dispersion performance of composite fillers in EP.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 35-45"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Renewable dimethyl ether production under the integration from municipal solid waste oxy-fuel combustion and water electrolyze: Insights from advanced exergy and exergoeconomic perspectives","authors":"Songbing Peng ,&nbsp;Yuting Tang ,&nbsp;Jiehong Tang ,&nbsp;Xiaojing Wang ,&nbsp;Xiaowen Liang ,&nbsp;Haohang Huang ,&nbsp;Zejie Zheng ,&nbsp;Xiaoqian Ma","doi":"10.1016/j.ijhydene.2025.05.385","DOIUrl":"10.1016/j.ijhydene.2025.05.385","url":null,"abstract":"<div><div>The critical challenges in municipal solid waste (MSW) management, combined with increasing demand for renewable energy, have heightened interest in Waste-to-Energy (WtE) technologies. However, current studies lack in-depth analysis of avoidable exergy destruction and exergy-based avoidable costs in WtE systems. This study investigates the advanced exergy and exergoeconomic performance of an MSW-to-dimethyl ether (MtD) system. The results indicate that the water electrolysis subsystem exhibits the highest avoidable exergy destruction (10,374.16 kW), representing the component with the greatest potential for improvement. The overall exergy efficiency of the MtD system is 47.15 %, with only 23.46 % of the total exergy destruction being avoidable. Exergoeconomic analysis reveals that the total avoidable system cost is $1424.17/h, accounting for 20.92 % of the total cost. Furthermore, exergy destruction is the primary cost driver for most components, underscoring that reducing exergy destruction is a key strategy for improving economic performance.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 253-265"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward carbon-neutral combustion: Synergistic CO2/H2O dilution for soot mitigation in oxy-fuel systems","authors":"Yindi Zhang ,&nbsp;Chengjing Wang ,&nbsp;Bowen Liang ,&nbsp;Mengting Si ,&nbsp;Yue Xin ,&nbsp;Weiwei Han ,&nbsp;Huaqiang Chu","doi":"10.1016/j.ijhydene.2025.05.387","DOIUrl":"10.1016/j.ijhydene.2025.05.387","url":null,"abstract":"<div><div>Soot emissions pose significant environmental and health challenges, necessitating innovative strategies to advance cleaner combustion technologies for sustainable energy generation. This study explores the thermochemical interactions of CO₂ and H₂O as effective diluents in oxygen-enriched ethylene diffusion flames, focusing on their impact on soot suppression and flame dynamics. Combined CO₂/H₂O dilution achieves intermediate suppression, redistributing soot closer to the burner outlet, thereby enhancing oxidation efficiency. Elevated oxygen concentrations increase flame temperature and soot nucleation but are counterbalanced by intensified OH and O₂ oxidation rates, highlighting the dual role of oxygen in promoting combustion efficiency while mitigating soot accumulation. Mechanistic insights into soot nucleation, surface growth via hydrogen-abstraction–C₂H₂–addition (HACA)/polycyclic aromatic hydrocarbons (PAHs) pathways, and oxidation dynamics underscore the dominance of radical chemistry (OH/O₂) and thermal-dilution effects in soot suppression. The findings demonstrate that optimizing CO₂/H₂O ratios in oxy-fuel systems significantly reduces soot emissions, offering a viable pathway for low-carbon combustion technologies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 229-240"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and numerical investigation of mixing in a partially premixed CH4/H2 combustor","authors":"Sarah Link ,&nbsp;Gioele Ferrante ,&nbsp;Kaushal Dave,&nbsp;Giulia Monti,&nbsp;Georg Eitelberg,&nbsp;Francesca de Domenico","doi":"10.1016/j.ijhydene.2025.05.070","DOIUrl":"10.1016/j.ijhydene.2025.05.070","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The mixing of fuel and air is a key factor in determining NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions during combustion. Lean-premixed burning strategies allow to control the flame temperature and therefore NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions. However, for highly reactive fuels like hydrogen, the high flame speed makes full premixing dangerous due to the increased risk of flashback. In these cases, current combustor geometries are often operated in partially premixed modes with the fuel injected as close as possible to the combustion chamber. This highlights the need for effective mixing strategies to achieve a high degree of mixing over a short distance. This is even more critical in fuel-flexible combustion systems (e.g., combustors capable of burning both CH&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;4&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; and H&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;2&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;), as the mixing process is heavily influenced by the varying properties of the fuel mixture. In such cases, a comprehensive understanding of the mixing process is required to minimize NO&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; emissions under all fuel blends conditions. This paper investigates the mixing of fuel jets into a swirling air cross-flow of a partially-premixed, swirl stabilized combustor using a combined experimental and numerical approach. The injector features an axial swirler and a mixing tube where the air and the fuel jets mix before entering the combustion chamber. The experiments are performed in cold flow conditions. A variable mixture of helium–air is used to represent different blends of CH&lt;sub&gt;4&lt;/sub&gt;-H&lt;sub&gt;2&lt;/sub&gt; fuel, and the mixing process is visualized by seeding the fuel stream with DEHS droplets. Large-Eddy Simulations (LES) confirm the suitability of helium as a surrogate for H&lt;sub&gt;2&lt;/sub&gt; by demonstrating similar macro-mixing behavior for the two gases. This study examines the impact of varying fuel composition and momentum flux ratio (&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;swirl&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;) between the fuel jet and the swirling cross-flow on mixing performance. The results indicate that fuel with lower density achieve better mixing with the air at the mixing tube outlet. A numerical analysis of the radial transport terms reveals that higher H&lt;sub&gt;2&lt;/sub&gt; content in the fuel makes it less subject to outward convection which causes stratification close to the mixing tube outlet. Furthermore, the contribution of the molecular diffusion term increases with higher levels of H&lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mtext&gt;2&lt;/mtext&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;, resulting in improved mixing. When increasing &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow&gt;&lt;mi&gt;swirl&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt; (up to &lt;span&gt;&lt;math&gt;&lt;msub&gt;&lt;mrow&gt;&lt;mi&gt;J&lt;","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 176-192"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vacancy engineering in Na2LiAlH6: Enhancing hydrogen storage for sustainable energy solutions","authors":"Hudabia Murtaza ,&nbsp;Quratul Ain ,&nbsp;Junaid Munir ,&nbsp;Ibrahim Albrahee ,&nbsp;Saif M.H. Qaid ,&nbsp;Abdullah S. Aldwayyan","doi":"10.1016/j.ijhydene.2025.05.407","DOIUrl":"10.1016/j.ijhydene.2025.05.407","url":null,"abstract":"<div><div>Perovskite hydrides based on vacancy increase the hydrogen storage by generating empty spaces that promote hydrogen absorption and release. The FP-LAPW technique is used to compute the physical properties of Na₂LiAlH₆ and Na₂LiH₆. The volume optimization curves, tolerance factors, and formation energies are calculated for both Na₂LiAlH₆ and Na₂LiH₆ to verify their structural and thermo-dynamical stability. The elastic constants for cubic studied hydrides were investigated via the second derivative of the energy-strain tensor. The computed elastic constants and the mechanical attributes for Na₂LiH₆ revealed a drastic decline with the removal of the “Al” atom. The electronic properties reveal indirect bandgap of 5.37 eV for Na₂LiAlH₆ and metallic behavior for Na₂LiH₆. According to the hydrogen storage characteristics of the studied hydrides, the removal of the \"Al\" atom results in a notable decrease in desorption temperature. The gravimetric ratio for Na₂LiAlH₆ is obtained as 6.52 wt% whereas it increased to 9.23 wt% in Na₂LiH₆. According to the optical analysis, Na₂LiH₆ is more appropriate for infrared-based applications such as sensors or telecommunications because of its greater dispersion in the IR region. In the meanwhile, Na₂LiAlH₆ shows promise for ultraviolet applications such as UV detectors, coatings, or optoelectronic devices due to its higher polarization in the UV region.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"142 ","pages":"Pages 90-97"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the hydrogen leakage and diffusion behavior of long-distance high-pressure buried pure-hydrogen pipelines","authors":"Yajia Wang ,&nbsp;Bingcai Sun ,&nbsp;Laibin Zhang ,&nbsp;Gang Li ,&nbsp;Jianfeng Li ,&nbsp;Pei Li ,&nbsp;Nan Liu ,&nbsp;Junqi Yang ,&nbsp;Xi Chen","doi":"10.1016/j.ijhydene.2025.05.313","DOIUrl":"10.1016/j.ijhydene.2025.05.313","url":null,"abstract":"<div><div>As a cornerstone of large-scale hydrogen energy systems, high-pressure long-distance buried hydrogen pipelines are critical for mitigating regional resource imbalances and integrating production, storage, and utilization. Despite their importance, leakage risks induced by corrosion, external disturbances, and construction flaws can trigger hydrogen diffusion and soil accumulation, posing severe fire and explosion threats to public safety. While understanding leakage-induced diffusion dynamics is essential for hazard zone delineation and emergency response optimization, current models often oversimplify multi-parameter interactions. This study employs numerical simulations grounded in multi-phase flow theory to characterize hydrogen diffusion in soil environments, prioritizing parameters with industrial failure relevance: soil properties (porosity, viscous/inertial resistance coefficients), pipeline pressure, burial depth, and leakage aperture. Quantitative analysis demonstrates that these parameters collectively govern leakage mass flow rates. A time-dependent model quantifies the duration for ground-level hydrogen accumulation to reach the lower flammability limit (LFL, 4 % vol). Building on this temporal framework, an adaptive multi-source data fusion model is proposed, leveraging nonlinear regression with dynamic parameter weighting to decode variable inter-dependencies. Validated against simulation data, the model achieves a mean absolute error of 6.48 % and a determination coefficient (R²) of 0.964, outperforming conventional static-weight approaches. These advancements establish a methodology for real-time risk mapping and adaptive emergency strategy formulation in buried hydrogen infrastructure management.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 212-228"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy and financial evaluation of a hydrogen-producing multigeneration system for sustainable development","authors":"Yanan Li ,&nbsp;Tao Xie ,&nbsp;Li Ma","doi":"10.1016/j.ijhydene.2025.05.052","DOIUrl":"10.1016/j.ijhydene.2025.05.052","url":null,"abstract":"<div><div>This study establishes an innovative multigeneration system integrating biomass digestion, solar thermal collection, Brayton and Rankine cycles, and hydrogen production technologies for sustainable energy production. The comprehensive system simultaneously delivers electricity, heating, cooling, and hydrogen with exceptional efficiency. Thermodynamic analysis reveals the Brayton cycle, Steam Rankine cycle, and hydrogen liquefaction systems achieve energy efficiencies of 40 %, 41 %, and 65 % respectively, with corresponding exergy efficiencies of 51 %, 68 %, and 12 %. The complete integrated system demonstrates overall energy and exergy efficiencies of 45.52 % and 66.85 %. Financial assessment indicates robust economic viability with projected profitability by 2031 and a net present value of $7.70 million. Environmental analysis confirms significant CO2 emission reductions compared to conventional energy systems, supporting sustainable development objectives.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"140 ","pages":"Pages 815-830"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel metal hydride reactor design: The effect of using copper, AlN and AlSi10Mg composite fins on the dehydrogenation process of LaNi5-Metal alloy","authors":"Atef Chibani ,&nbsp;Chahrazed Boucetta ,&nbsp;Mohammed Amin Nassim Haddad ,&nbsp;Ali Boukhari ,&nbsp;Issam Fourar ,&nbsp;Slimane Merouani ,&nbsp;Riad Badji ,&nbsp;Samir Adjel ,&nbsp;Sihem Belkhiria ,&nbsp;Moustafa Boukraa ,&nbsp;Cherif Bougriou","doi":"10.1016/j.ijhydene.2025.05.290","DOIUrl":"10.1016/j.ijhydene.2025.05.290","url":null,"abstract":"<div><div>The optimal design of solid-state hydrogen storage devices is crucial for their effectiveness. This study investigates the thermal management of LaNi₅-based metal hydride reactors for solid-state hydrogen storage by incorporating various fin materials: copper, aluminum nitride (AlN), and Aluminum Silicon Magnesium (AlSi10Mg). Utilizing ANSYS FLUENT 15.0 for simulations within a 2D numerical model, User-Defined Functions (UDFs) were employed to access the dehydrogenation process over a half-hour period. The reactor is subjected to an initial temperature of 363 K and heating oil is introduced at a speed of 1 m/s pressures ranging from 1 to 2 bar. The impact of different fin materials on enhancing the reactor's desorption properties was evaluated through key metrics such as hydrogen concentration, forced convection heat transfer coefficient, and average reactor temperature. Results demonstrate a remarkable improvement in hydrogen desorption rates, where copper fins achieve up to 67.6 % reduction in time to reach equilibrium at 1 bar compared to the reactor without fins. Similarly, AlN and AlSi10Mg fins exhibit a 64 % and 62 % reduction, respectively, highlighting their contributions to improved reactor performance. This research contributes to the advancement of hydrogen storage technologies by offering insights into the selection of fin materials and design for efficient.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"141 ","pages":"Pages 118-132"},"PeriodicalIF":8.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in carbon nanotube-supported non-noble metal electrocatalysts for urea oxidation reaction","authors":"Irsa Tariq ,&nbsp;Waheed Iqbal ,&nbsp;Ali Haider ,&nbsp;Mingming Ma","doi":"10.1016/j.ijhydene.2025.05.382","DOIUrl":"10.1016/j.ijhydene.2025.05.382","url":null,"abstract":"<div><div>Addressing global energy and environmental challenges demands efficient, durable electrocatalysts for urea oxidation reaction (UOR). Non-noble transition metal-based materials have emerged as promising UOR catalysts due to their abundance and tuneable catalytic properties, yet suffer from stability issues, conductivity limitations, and particle agglomeration. Integrating these UOR catalysts with carbon nanotubes (CNT) presents an innovative solution, leveraging CNT's exceptional electrical/thermal conductivity, high surface area, anisotropic structure and tunable surface/interface properties. This review highlights recent advances in CNT-supported UOR electrocatalysts encompassing metal alloys, MOFs, hydroxides/oxides, chalcogenides, phosphides, and carbides. We systematically analyze synthesis strategies, morphological control, and electrochemical performance enhancement mechanisms, emphasizing the critical role of CNT's structural/electronic characteristics in catalytic optimization. Current challenges regarding long-term stability, cost-effective fabrication, and mechanistic understanding are discussed, alongside future research directions for developing next-generation UOR systems. This comprehensive analysis provides valuable insights for designing high-performance electrocatalysts for UOR, serving as a strategic roadmap for researchers in sustainable energy conversion technologies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"142 ","pages":"Pages 40-53"},"PeriodicalIF":8.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}