International Journal of Hydrogen Energy最新文献

{"title":"Ni3Fe embedded in oxygen carriers to improve CH4 conversion and H2 production during chemical looping reforming","authors":"Jinxia Quan,&nbsp;Xuelin Chen,&nbsp;Jian Chen,&nbsp;Hailing Yang,&nbsp;Qimeng Zeng,&nbsp;Guocai Li,&nbsp;Shanghui Li,&nbsp;Zhifeng Hu","doi":"10.1016/j.ijhydene.2025.151767","DOIUrl":"10.1016/j.ijhydene.2025.151767","url":null,"abstract":"<div><div>Chemical looping reforming is an efficient technology for the stepwise production of syngas and hydrogen, which significantly contributes to reducing carbon emissions. However, the imbalance between the catalytic performance and lattice oxygen transport rate of oxygen carriers (OCs) can induce severe carbon deposition and diminished conversion. Therefore, this study proposes a spinel OC embedded with Ni₃Fe to balance them to improve conversion and reduce carbon deposition during chemical looping reforming. After H₂-20 min reduction, the Ni₃Fe embedded in the spinel structure generated abundant catalytic sites and suitable lattice oxygen transport rates. Moreover, increasing the reduction degree can enhance the active catalytic sites while moderating the lattice oxygen transport rate. However, over-reduction can lead to over-catalytic effect and insufficient lattice oxygen, potentially resulting in a significant carbon deposition. It is worth noting that temperature plays a more critical role in determining the lattice oxygen transport rate than the catalytic activity. Higher temperatures enhanced the lattice oxygen transport and CH₄ conversion, resulting in H₂/CO ratio that stabilized at 2. After 10 cycles, the CH₄ conversion, H₂ selectivity and CO selectivity respectively reached 94.46 %, 91.62 % and 81.63 % during CH₄ conversion step, while H₂ production reached 28.58 mol/h/kg during the water splitting step and carbon deposition remained below 1.79 %. The reaction kinetic showed that the reaction model of the Ni₃Fe embedded OC with CH₄ was Phase boundary-controlled model Infinite slabs, which facilitated the catalytic cracking of methane and reduced the activation energy of the reaction.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"182 ","pages":"Article 151767"},"PeriodicalIF":8.3,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219154","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":"Morphology-tailored nanofiber oxygen electrode enables efficiency and durability of solid oxide cells","authors":"Peng Fu ,&nbsp;Jiakun Sun ,&nbsp;Wei Han ,&nbsp;Liting Li ,&nbsp;Liuzhen Bian ,&nbsp;Pengyu Wei ,&nbsp;Changyang Liu ,&nbsp;Ju Peng ,&nbsp;Shengli An","doi":"10.1016/j.ijhydene.2025.151821","DOIUrl":"10.1016/j.ijhydene.2025.151821","url":null,"abstract":"<div><div>Developing oxygen electrodes with excellent electrocatalytic activity and outstanding Sr segregation resistance remains a critical sustainability challenge for the industrial deployment of solid oxide cells (SOCs). Herein, we demonstrate a hollow (La_0.6Sr_0.4)_0.95Co_0.2Fe_0.8O_3-δ nanofibers (LSCF-0.3) with enhanced catalytic activity for oxygen reduction/evolution reaction (ORR/OER) by electrospun method. The unique hollow morphology improves the active sites, resulting in 76 % lower polarization resistance performance (0.040 <em>vs.</em> 0.143 Ω cm² @ 750 °C). Moreover, benefited from the hollow structure, the exceptional Sr segregation resistance significantly improves the stability (0.29 % h⁻¹ <em>vs.</em> 1.74 % h⁻¹). Electrochemical testing demonstrates superior bifunctional performance with electrolysis current density of 1.49 A cm⁻²@1.6 V and peak power density of 1.22 W cm⁻² @0.75V at 750 °C. Finally, the LSCF-0.3 oxygen electrode exhibits remarkably long-term stability in both fuel cell and electrolysis modes. Our work establishes electrospinning-enabled morphology control as a green manufacturing paradigm for durable energy conversion devices.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151821"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219407","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":"Investigation of diesel pilot ignition strategy in a low-speed two-stroke marine hydrogen engine","authors":"Wenjing Qu ,&nbsp;Yuan Fang ,&nbsp;Zelong Xie ,&nbsp;Liyan Feng","doi":"10.1016/j.ijhydene.2025.151809","DOIUrl":"10.1016/j.ijhydene.2025.151809","url":null,"abstract":"<div><div>This study investigates the combustion performance of a low-speed two-stroke marine hydrogen engine (LTMHE) operating with diesel pilot ignition. A skeletal hydrogen/primary reference fuel (PRF) chemical mechanism was developed and validated using ignition delay time (IDT) measurements by rapid compression machine (RCM) under engine-relevant conditions. The mechanism was then implemented in three-dimensional computational fluid dynamics (3D CFD) simulations to optimize combustion system design. Two ignition strategies were examined: direct in-cylinder and pre-chamber pilot diesel injection. Results show that optimal pilot diesel energy fractions are 3 % (97 % hydrogen) and 1 % (99 % hydrogen) for the in-cylinder and pre-chamber configurations, respectively. Under optimal conditions, the engine achieves 83 % of the power output of the prototype diesel engine and indicated thermal efficiency (ITE) of 49 %. Pre-chamber ignition improves lean mixture flammability, accelerates combustion, reduces sensitivity to pilot diesel variation, and mitigates high-temperature regions, offering a promising approach for enhancing efficiency and reducing NOx emissions in LTMHE.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151809"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219304","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":"Effects of hydrogen concentration and explosion vent on the deflagration characteristics of the unpremixed H2/ TiH2 dust layer","authors":"Shou-Jun Zhu ,&nbsp;Yang-Fan Cheng ,&nbsp;Jia-Qi Qian ,&nbsp;Chen Tao ,&nbsp;Wen-Jin Liu","doi":"10.1016/j.ijhydene.2025.151828","DOIUrl":"10.1016/j.ijhydene.2025.151828","url":null,"abstract":"<div><div>In this study, the secondary explosion and explosion venting characteristics of TiH2 dust cloud induced by H₂ explosion with different concentrations were studied using a 27 L cubic explosion vessel. Experimental results showed that the explosion peak pressure of the unpremixed H₂/TiH₂ dust layer respectively increased by 33.0 % and 4.0 % when the concentrations of H₂ were 10 vol% and 20 vol%, TiH₂ dust played a role of positive feedback effect on the explosion pressure; While when H₂ concentrations were 30 vol%, 40 vol% and 50 vol%, the explosion peak pressure of the mixture would decreased by 9.9 %, 4.4 % and 1.3 %, while had a negative feedback effect on the explosion pressure. As the H₂ concentration increases, the maximum flame area of the TiH₂ dust cloud ignited by an H₂ explosion first rises and then decreases, reaching a peak of 350.13 cm2 at an H₂ concentration of 30 vol%. As the H2 concentration increases, the maximum average temperature of the TiH₂ dust cloud induced by H₂ explosion first rises and then decreases, reaching a peak value of <em>T</em>_max = 2572 K at an H₂ concentration of 20 vol%. The explosion vent effectively reduces the peak pressure of H₂ explosions in enclosed spaces, with a maximum reduction of 19.2 %. When TiH₂ dust is present in the space, the reduction reaches up to 16.9 %. Concurrently, the flame area and duration of TiH₂ deflagration are significantly diminished. The explosion vent demonstrates a pronounced effect in suppressing secondary explosions of TiH₂ dust. By reducing the pressure of the primary explosion, it inhibits the entrainment of TiH₂ dust, thereby mitigating the hazards associated with secondary TiH₂ dust explosions. The research achievement had an important guiding significance for the prevention and control of dust explosion of hydrogen storage alloy powders.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151828"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219314","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":"Interfacial interplay in LaCoO3/Ti3C2Tx composites enables kinetic enhancement in electrochemical oxygen evolution","authors":"Mo Yan ,&nbsp;Liang Ma ,&nbsp;Shihao Wu ,&nbsp;Zengyan Wei ,&nbsp;Dechang Jia ,&nbsp;Yu Zhou ,&nbsp;Xiaoming Duan","doi":"10.1016/j.ijhydene.2025.151622","DOIUrl":"10.1016/j.ijhydene.2025.151622","url":null,"abstract":"<div><div>Developing efficient electrocatalysts for the oxygen evolution reaction (OER) is crucial for sustainable hydrogen production via water electrolysis. Herein, we report the facile synthesis of single- or few-layer Ti₃C₂T_x MXene and LaCoO₃/Ti₃C₂T_x composite catalysts by a ball milling-assisted exfoliation strategy with urea intercalation. Tafel slope plot was used to obtain the intrinsic Tafel slope of OER for LaCoO₃/Ti₃C₂T_x composite with varying mass ratios. By optimizing the composite ratio, the intrinsic Tafel slope of OER is decreased from 88.6 to 47.1 mV/dec, indicating a shift of rate-determining step (RDS). This enhancement stems from interfacial electronic modulation rather than conductivity and hydrophilicity provided by Ti₃C₂T_x alone. Charge transfer between LaCoO₃ and Ti₃C₂T_x elevated the Co valence state in LaCoO₃ and induced lattice strain, which modulated its electronic structure and shifted the RDS of OER to O–O bond formation. This study highlights the interface engineering in composite catalysts for efficient energy conversion.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151622"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219406","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":"Exploring the synergistic effects of MnTe/PANI nanocomposites for supercapacitor and electrocatalytic water splitting applications","authors":"Muhammad Zia Ur Rehman Faurooqi ,&nbsp;Maryam Ramzan ,&nbsp;Khalid Mahmood ,&nbsp;Muhammad Tariq ,&nbsp;Ajaz Hussain ,&nbsp;Muhammad Hanif ,&nbsp;Kiran Khalid ,&nbsp;Aysha Arshad ,&nbsp;Muhammad Yaqub ,&nbsp;Muhammad Rafiq","doi":"10.1016/j.ijhydene.2025.151807","DOIUrl":"10.1016/j.ijhydene.2025.151807","url":null,"abstract":"<div><div>Polyaniline (PANI), a distinct class of basic conducting polymers with potential applications in various fields owing to its high electrical conductivity, environmental stability, and nanostructured surface characteristics. Herein, rod-like MnTe NPs are decorated on a PANI matrix and utilized as an electrode for supercapacitors and overall water splitting, delivering excellent electrochemical performance in terms of high capacitance (709 F g⁻¹ at 1 A g⁻¹) with extended cyclic stability. Designed hybrid supercapacitor (HSC) devices exhibited 25.3 Wh kg⁻¹ energy density (ED) at 980 W kg⁻¹ power density (PD) for symmetrical supercapacitor (SSC) and 206.6 Wh kg⁻¹ at a PD of 48 kW kg⁻¹ for asymmetrical supercapacitor (ASSC). The MTP-3 NC showed overpotential of 276 mV with 62 mV dec⁻¹ Tafel slope and 549 mV overpotential with 93 mV dec⁻¹ Tafel slope for OER and HER, respectively, at 10 mA cm⁻² with improved kinetics. The exceptional performance can be ascribed to 3D porous nanostructures offering ample electroactive sites and rapid ion-diffusion via shortened paths. Thereby, proposed NPs and optimized NC can be employed as electrode for electrochemical and electrocatalytic applications.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151807"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219313","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":"Sustainable avenue for biochar production using bamboo dust through a novel thermo-electrochemical process","authors":"Shailendra Yadav,&nbsp;Farrukh Khalid","doi":"10.1016/j.ijhydene.2025.151794","DOIUrl":"10.1016/j.ijhydene.2025.151794","url":null,"abstract":"<div><div>Converting waste bamboo dust to biochar reduces greenhouse gas emissions (GHG) and air pollution from open burning, making it an environmentally friendly choice. This study examined the impact of molten salt electrolysis temperatures on the physicochemical parameters of biochar obtained from bamboo dust. Bamboo dust-based biochar is derived at 250 °C, 315 °C, and 380 °C for a reaction time of 3 h. The waste bamboo dust and bamboo biochar derived are evaluated by proximate, ultimate, FESEM, BET, FTIR, and XRD studies. Bamboo dust-derived biochar yields 20.80 % at 250 °C, 19.00 % at 315 °C, and 18.00 % at 380 °C with a constant voltage of 1.5V and current between −0.5 and 0.5 A. The fixed carbon content of bamboo dust-derived biochar ranged between 80.70 % and 86.18 %, which is significantly higher than that of bamboo dust. The carbon content of the biochar ranged from 81.68 % to 87.93 %, with the maximum carbon fraction reported at a molten salt electrolysis temperature of 380 °C. The low elemental ratios of C/H 0.54–0.72 and C/N 0.07–0.15 indicated that bamboo dust biochar is strongly carbonized. Bamboo dust-derived biochar exhibits a BET surface area between 37 and 187.10 m²/g, reaching its maximum at 380 °C. At that temperature, bamboo dust-derived biochar had a total pore volume ranging from 0.05 to 0.11 cc/g. The XRD analysis verified the existence of inorganic compounds like magnesium, manganese and sylvite, calcite, and calcium silicates in bamboo dust-derived biochar, which contribute to their heterogeneous composition and elevated ash content. This study explores the thermo-electrochemical process to produce high-performance activated biochar using alkali-based activation at lower temperatures and applied current. The technique improves porosity, surface area and carbon content, making it a more advanced and sustainable option compared to the traditional process.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151794"},"PeriodicalIF":8.3,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219405","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":"Analysis of floating photovoltaics potential in Hong Kong: Green hydrogen production and energy application","authors":"Alexis Li,&nbsp;Aritra Ghosh","doi":"10.1016/j.ijhydene.2025.151567","DOIUrl":"10.1016/j.ijhydene.2025.151567","url":null,"abstract":"<div><div>Solar energy is now one of the most affordable and widely available energy sources. However, densely populated cities like Hong Kong often lack the land needed for large-scale solar deployment. Floating solar photovoltaics (FPV) offer a promising alternative by using water surfaces, such as reservoirs, while providing additional benefits over ground-mounted systems, including competition with urban development, such as housing and infrastructure. The advantage of this system has been explored in parts of the world, while Hong Kong is yet to fully exploit it despite the presence of pilot projects. This study uses PVsyst to evaluate FPV deployment across Hong Kong's reservoirs, estimating over 7 TWh of potential annual electricity generation. Even with 60 % surface coverage, generation reaches 4.6 TWh/year, with LCOE between $0.036–$0.038/kWh. In parallel, green hydrogen is explored as a clean energy storage solution and alternative transport fuel. By using electricity from FPV systems, hydrogen production via electrolysis is assessed through HOMER Pro. Results show annual hydrogen output ranging from 180,502 kg to 36,310,221 kg, depending on reservoir size, with associated LCOH between $10.2/kg and $19.4/kg. The hydrogen produced could support ongoing hydrogen bus projects and future expansion to other vehicle types as Hong Kong moves toward a hydrogen-based transport system. After coupling the FPV systems with hydrogen-generation units, the new LCOEs are found to be between $0.029–4.01/kWh. Thus, suggesting the feasibility of a hydrogen-integrated FPV system in Hong Kong.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151567"},"PeriodicalIF":8.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219410","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":"Optimizing methane catalytic hydrogen production via a hybrid Boruta-XGB and stacking ensemble machine learning framework","authors":"Xinyi Liu ,&nbsp;Yaxuan Heng ,&nbsp;Linmeng Zhou ,&nbsp;Huiru Gao ,&nbsp;Yanyan Ji ,&nbsp;Wu Zhang","doi":"10.1016/j.ijhydene.2025.151812","DOIUrl":"10.1016/j.ijhydene.2025.151812","url":null,"abstract":"<div><div>Hydrogen production from methane is a crucial technology for the transition to clean energy, but conventional catalyst development relies on costly and time-consuming trial-and-error experiments. The objective of this study is to enhance the methane catalytic hydrogen production process by employing machine learning methodologies to augment hydrogen yield and mitigate experimental expenses. The machine learning model was constructed by the collection of 1772 data points from the extant literature. The improved Boruta algorithm was employed for the purpose of feature screening, and the prediction model was constructed by combining the Stacking integrated learning method. This method is capable of revealing the effects of process control parameters and catalyst design on the methane hydrogen production process by means of systematic analysis of the relationship between the input parameters and the output parameters. SHAP and PDP interpretation tools were then used to reveal the effects of process parameters and catalyst design on hydrogen production and to identify key influential features, such as Al₂O₃ content, pore size (PS), surface area (SA) and Time. The findings demonstrate that the machine learning models developed are capable of precise prediction of hydrogen production, with the Stacking model exhibiting superior prediction performance in the test set, as evidenced by an R² value of 0.9544, an RMSE value of 5.8601, and an MAE value of 3.0731. This study provides an efficient tool for the screening and optimization of methane-hydrogen-producing catalysts, with industrial applications being a key focus. In addition to offering a practical guide for industrial applications, the study provides theoretical support that helps to elucidate the mechanism of methane hydrogen production, thereby promoting the development of more efficient catalysts.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151812"},"PeriodicalIF":8.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219409","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":"Suppressing high pressure hydrogen blistering in NBR via Zn-based MOF vulcanization: Microstructural and mechanical insights","authors":"Miaomiao Yang ,&nbsp;Sohail Yasin ,&nbsp;Qi Chen ,&nbsp;Wenzhu Peng ,&nbsp;Zhenwei Lv ,&nbsp;Zhipeng Qi ,&nbsp;Jianfeng Shi","doi":"10.1016/j.ijhydene.2025.151810","DOIUrl":"10.1016/j.ijhydene.2025.151810","url":null,"abstract":"<div><div>High-pressure hydrogen environments often lead to hydrogen-induced damages such as hydrogen blistering and cracking in rubber sealing materials, severely compromising the reliability of hydrogen energy equipment. Traditional rubber vulcanization activators, specifically zinc oxide (ZnO) aggregates, tend to cause hydrogen accumulation and expansion during depressurization, resulting in substantial hydrogen blistering damage. To mitigate the risk of hydrogen blistering formation in nitrile butadiene rubber (NBR), this study proposes using the zinc-based metal-organic framework (MOF) ZIF-8 as a multifunctional additive to replace ZnO. The effectiveness of ZIF-8 stems primarily from its hydrogen adsorption capability and enhanced interfacial bonding with the NBR matrix. Micro-CT and TEM analyses revealed that substituting additive with ZIF-8 significantly reduced initial defects through its enhanced interfacial bonding capability with the NBR matrix. Consequently, the blister volume fraction decreased by approximately 80 % compared to ZnO systems at equivalent content, with a notable reduction in average blister size. Moreover, ZIF-8 facilitated homogeneous silica dispersion and formed a denser crosslink network, increasing crosslink density by 25 % after high pressure hydrogen exposure. Mechanical tests indicated that ZIF-8 modified NBR exhibited a 20 % increase in tensile strength after hydrogen exposure, achieving a synergistic enhancement of hydrogen blistering resistance and mechanical stability. This work provides a scalable strategy for designing high-pressure hydrogen resistant elastomer composites, advancing reliable sealing solutions for hydrogen energy infrastructure.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"181 ","pages":"Article 151810"},"PeriodicalIF":8.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189570","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}