International Journal of Hydrogen Energy最新文献

{"title":"Preparation and hydrogen permeation resistance of α-Fe2O3/Al2O3 composite coating via atomic layer deposition and plasma treatment","authors":"Yihao Yang ,&nbsp;Feng Liu ,&nbsp;Yulong Li ,&nbsp;Ping Huang ,&nbsp;Fei Wang","doi":"10.1016/j.ijhydene.2025.150550","DOIUrl":"10.1016/j.ijhydene.2025.150550","url":null,"abstract":"<div><div>The hydrogen isotope permeation barrier (HIPB) plays a crucial role in preventing hydrogen penetration in the hydrogen energy industry. Unlike the well-documented HIPB oxidations such as Al₂O₃, TiO₂, Cr₂O₃, and Er₂O₃, rarely used α-Fe₂O₃ was applied as an intermediate layer in this study. An α-Fe₂O₃/Al₂O₃ HIPB was synthesized on T91 steel substrates via atomic layer deposition (ALD) and oxygen plasma treatment. By adjusting the applied power upon plasma treatment, α-Al₂O₃ was derived at 650 °C, facilitated by both the additional energy of ion bombardment and template effect of α-Fe₂O₃. The interfacial α-Fe₂O₃(104)/α-Al₂O₃(104) relation was observed, and the adsorption energy of H atoms in the interface region was calculated using the density functional theory (DFT) method. The experimental results of hydrogen permeation performance and corrosion resistance of the composite coatings indicate that the α-Fe₂O₃/Al₂O₃ HIPB shows excellent hydrogen-permeation resistance, outperforming previously reported HIPBs, providing a new approach for the preparation of high-performance hydrogen-resistant coatings.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"159 ","pages":"Article 150550"},"PeriodicalIF":8.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680548","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":"Thermal insulation effect and optimized design of VCS for large evaporation liquid hydrogen storage tank","authors":"Mengyu Yan,&nbsp;Huifang Kang,&nbsp;Yuqi Yuan,&nbsp;Mengfei Xu","doi":"10.1016/j.ijhydene.2025.150480","DOIUrl":"10.1016/j.ijhydene.2025.150480","url":null,"abstract":"<div><div>Cryogenic liquid hydrogen storage faces challenges in aerospace due to its extremely high insulation requirements. Vapor-Cooled Shield (VCS) systems offer efficient insulation, which performance is limited by cryogenic fluid evaporation and the absence of standardized collaborative design criteria for non-isothermal operating conditions. In this research a 3D steady-state heat transfer numerical simulation model of SOFI (Spray-On Foam Insulation) coupled with VCS is constructed, to evaluate the impact of the number of VCS tubes, hydrogen flow velocity (0.5–15 m/s), and flow directions. Results indicated that the flow rate dominates insulation performance of VCS, with 5 m/s minimizing heat leakage. Flow direction marginally affects total heat loss (0.410 % variation) and enhances temperature uniformity. Increasing the number of VCS tubes improves circumferential temperature homogeneity and reduces heat leakage, yielding the optimal number of VCS tubes determined to be 3. The findings elucidate multi-parameter synergy in VCS optimization, providing theoretical guidance for advancing thermal management in liquid hydrogen storage/transportation systems.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"159 ","pages":"Article 150480"},"PeriodicalIF":8.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680550","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":"Research on high-precision fault identification of proton exchange membrane fuel cell experiment based on multiple correlation analysis and deep learning","authors":"Rongjie Huang ,&nbsp;Juzheng Deng ,&nbsp;Yanqiu Xiao ,&nbsp;Lei Yao ,&nbsp;Guangzhen Cui ,&nbsp;Zhigen Fei","doi":"10.1016/j.ijhydene.2025.150530","DOIUrl":"10.1016/j.ijhydene.2025.150530","url":null,"abstract":"<div><div>The rapid application of Proton exchange membrane fuel cell (PEMFC) in transportation and energy sectors, driven by advancements in hydrogen energy technology, underscores the critical importance of ensuring operational safety for widespread adoption. Intelligent diagnosis with high precision and robustness is imperative to address the primary challenge of performance and longevity. This study introduces an intelligent diagnostic framework tailored for identifying flooding faults in PEMFC, integrating feature optimization, sample enhancement, and model refinement. Initially, a feature selection approach leveraging Pearson and Spearman weighted fusion is devised to identify key physical parameters highly correlated with flooding by considering both linear and nonlinear relationships. Subsequently, a sliding window sample amplification strategy is implemented to enrich the local dynamic features of time series data, enhancing the model's ability to perceive fault evolution. Lastly, a weighted pooling convolutional neural network (CNN) model with adaptable channel weights is proposed, achieving a fault recognition accuracy of 99.9 % on the test dataset and demonstrating robust generalization on an independent dataset. This methodology offers a novel avenue for reliably identifying PEMFC flooding faults, crucial for ensuring system safety and enabling intelligent operational maintenance practices.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"158 ","pages":"Article 150530"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670998","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 catalytic mechanism of core-shell structure CoCu@BN promoting the hydrolytic dehydrogenation of ammonia borane","authors":"Jue Wang","doi":"10.1016/j.ijhydene.2025.150409","DOIUrl":"10.1016/j.ijhydene.2025.150409","url":null,"abstract":"<div><div>Ammonia borane (NH₃BH₃, AB) as one of the complex hydrides shows great potential for hydrogen storage. Nevertheless, the lack of efficient catalysts limits the hydrogen release rate. Herein, we reported a heterostructure catalyst consisting of Co and Cu nanoparticles with a boron nitride cladding (defined as CoCu@BN). Remarkably, on the basis of BN shell formation, CoCu particles are confined with a stable nanoscale of around 10 nm. As a result, the optimal Co₀₈Cu_0.2@BN catalyst demonstrates excellent catalytic performance, achieving a high TOF of 28.8 mol_H2 mol_metal⁻¹ min⁻¹, which is far superior to the Co@BN and Cu@BN. The catalytic mechanism has been verified, demonstrating that the combined compositional and structural characteristics of Co₀_·₈Cu_0.2@BN synergistically induce robust electron transfer. This phenomenon accelerates the cleavage of H₂O molecules (the rate-determining step), thereby enhancing the catalytic hydrolysis of AB. The findings presented in this study offer a precise and controllable strategy for designing non-noble metal catalysts aimed at hydrogen production.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"158 ","pages":"Article 150409"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671061","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":"Light driven photocatalytic hydrogen generation using BODIPY-thiophene-covalent organic polymers","authors":"Kübra Turgut ,&nbsp;Mücahit Özdemir ,&nbsp;Gizem Yıldız ,&nbsp;Bahattin Yalçın ,&nbsp;Sermet Koyuncu ,&nbsp;Baybars Köksoy ,&nbsp;İmren Hatay Patır","doi":"10.1016/j.ijhydene.2025.150105","DOIUrl":"10.1016/j.ijhydene.2025.150105","url":null,"abstract":"<div><div>Boron-dipyrromethene (BODIPY) - based dyes have recently garnered attention as sensitizers for photocatalytic hydrogen production. They exhibit high catalytic activity through efficient electron transfer, owing to their unique properties such as high molar absorptivity, adjustable absorption and emission energies, and high fluorescence quantum efficiencies. In this study, the effect of a –OH subunit that can increase hydrophilicity on the photocatalytic hydrogen evolution in BODIPY-thiophene-based covalent organic polymers (COP) was investigated. In the conducted research, COP structures were integrated into BODIPY to enhance their light absorption capabilities, aiming to serve as photocatalysts for energy conversions under simple conditions. In the proposed system, Thiophene-BODIPY-based dyes are integrated into COP structures, where they facilitate electron excitation upon light absorption, thereby playing an effective role in photocatalytic reactions by promoting electron transfer. The photocatalyst, modified with titanium dioxide (TiO₂) nanoparticles, exhibited notable performance in enhancing the efficiency of the hydrogen production process, owing to its light absorption capabilities, multifunctional fluorescent properties, and electron-accepting characteristics. The synthesized BODIPY-Th-COP-OH_TiO₂ photocatalyst demonstrated higher hydrogen activity compared to BODIPY-Th-COP-CH₃_TiO₂, attributed to the presence of hydroxyl groups promoted hydrophilic character in the catalyst structure. Therefore, BODIPY-Th-COP-X_TiO₂ photocatalysts (X: OH, CH₃) utilizing methanol as sacrificial agent yielded hydrogen amounts of 0.197 mmol g⁻¹ h⁻¹ and 0.132 mmol g⁻¹ h⁻¹ for BODIPY-Th-COP-OH_TiO₂ and BODIPY-Th-COP-CH₃_TiO₂ photocatalysts, respectively, under visible light illumination.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"158 ","pages":"Article 150105"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671065","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":"ZIF-derived 3D carbon nanosheet/nanotube framework with encapsulated CoNi nanoparticles for efficient LOHC hydrogen storage","authors":"Luoming Kang ,&nbsp;Bin Jiang ,&nbsp;Xiaoming Xiao ,&nbsp;Longfei Zhang ,&nbsp;Xiaodong Yang ,&nbsp;Na Yang ,&nbsp;Yongli Sun ,&nbsp;Luhong Zhang","doi":"10.1016/j.ijhydene.2025.150486","DOIUrl":"10.1016/j.ijhydene.2025.150486","url":null,"abstract":"<div><div>Liquid organic hydrogen carrier (LOHC) systems require efficient, low-cost catalysts for scalable hydrogen storage. Here, a reusable CoNi bimetallic catalyst was developed through one-step reductive pyrolysis of ZIF-67-L, forming CoNi alloy nanoparticles embedded in a 3D carbon nanosheet/nanotube (CNS/CNT) heterostructure. Using N-ethylcarbazole (NEC) as a model compound, the optimized catalyst enables rapid hydrogenation (5.72 wt% H₂ uptake at 150 °C, 8 MPa in 80 min) and dehydrogenation (5.64 wt% H₂ release at 220 °C, 0.1 MPa), with high recyclability over seven cycles. The CNS/CNT facilitates electron transport, enhances active site exposure, and provides a high surface area. Combined XPS and DFT results reveal that the synergy between the CNS/CNT architecture and CoNi alloying modulates the electronic environment of Co⁰ sites, reduces the energy barrier for H₂ dissociation, and improves catalytic performance. This study provides new insights into the design of highly active and stable non-noble metal catalysts for LOHC systems to achieve reversible hydrogen storage.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"158 ","pages":"Article 150486"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670996","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":"Unveiling the Ni–S synergy in 3D porous carbon-supported NiS nanoparticles for enhanced oxygen evolution","authors":"Wenxue Zhang ,&nbsp;Shunli Kong ,&nbsp;Mengmei Nie ,&nbsp;Jiuran Wen ,&nbsp;Cheng He","doi":"10.1016/j.ijhydene.2025.150500","DOIUrl":"10.1016/j.ijhydene.2025.150500","url":null,"abstract":"<div><div>Despite the remarkable intrinsic activity and cost-effectiveness of nickel-sulfur (Ni–S) diatomic electrocatalysts, their widespread industrial adoption in water splitting systems remains hindered by an incomplete understanding of the synergistic interplay between nickel and sulfur species. To address this challenge, we developed a facile NaCl-template-assisted strategy combined with sequential carbonization and sulfidation processes, yielding three-dimensional porous carbon nanosheets embedded with NiS nanoparticles (NiS/PCNs). The optimized NiS/PCNs catalyst demonstrates superior alkaline oxygen evolution reaction (OER) performance, achieving a current density of 10 mA cm⁻² at a low overpotential of 210 mV in 1 M KOH, accompanied by a favorable Tafel slope of 69 mV dec⁻¹ and exceptional durability (99 % activity retention over prolonged operation). Moreover, DFT calculations reveal an innovative “aggregation-rebalance” mechanism governing Ni–S interactions. This dynamic process induces electron redistribution across metallic surfaces, facilitating charge convergence and transfer dynamics. Consequently, the energy barrier of the OER rate-determining step is substantially reduced, rationalizing the enhanced catalytic efficiency of NiS nanoparticles. This work achieves dual advancements: A scalable synthesis route for constructing three-dimensional porous architectures with optimized mass/charge transport capabilities; Fundamental elucidation of atomic-level Ni–S synergy through computational-experimental integration. The proposed design paradigm extends beyond Ni–S systems, offering a universal framework for developing transition metal chalcogenide electrocatalysts.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"159 ","pages":"Article 150500"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680060","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":"Polymeric Hydrogels for Hydrogen (H2) Storage: A Comprehensive Review","authors":"Chandra Sekhar Espenti ,&nbsp;Madhusudana Rao Kummara ,&nbsp;K.S.V. Krishna Rao ,&nbsp;Sung Soo Han","doi":"10.1016/j.ijhydene.2025.150529","DOIUrl":"10.1016/j.ijhydene.2025.150529","url":null,"abstract":"<div><div>Hydrogen is widely recognized as a green and renewable energy carrier that is essential for the transition to sustainable energy systems. Traditional hydrogen storage methods, such as compressed gas, metal hydrides, and metal-organic frameworks (MOFs), offer high storage densities but are often associated with safety concerns, high energy requirements, and limited practical applicability. In contrast, polymeric hydrogels present a versatile platform for hydrogen storage due to their tunable porosity, high water uptake, and reversible functional groups. This review highlights recent advances in the design, synthesis, and functionalization of hydrogels for hydrogen storage, focusing on key mechanisms such as physisorption, chemisorption, and hydrogen entrapment. Importantly, hydrogels facilitate reversible hydrogen uptake and release under mild conditions, making them promising candidates for integration into flexible and smart energy devices. Recent progress in nanocomposite hydrogels, stimulus-responsive systems, and metal–hydrogel hybrids has further improved storage capacity and control. Although their current gravimetric hydrogen capacity is lower than that of MOFs or metal hydrides, polymeric hydrogels offer superior processability, safety, scalability, and multifunctionality. These advantages position them as highly promising materials for future hydrogen storage applications in both stationary and portable systems.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"158 ","pages":"Article 150529"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670997","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":"Control of spatial nickel distribution inside pellet catalysts for reforming of biogas with additional steam","authors":"Su-Ji Kim ,&nbsp;Yeon Jeong Yu ,&nbsp;Sung-Bin Choi,&nbsp;Byung Sun Yoon,&nbsp;Gwan-Joong Park,&nbsp;Da-Bin Kang,&nbsp;Chang Hyun Ko","doi":"10.1016/j.ijhydene.2025.150443","DOIUrl":"10.1016/j.ijhydene.2025.150443","url":null,"abstract":"<div><div>Growing concerns over climate change and the increasing demand for renewable energy have intensified interest in utilizing biogas. Among various strategies, the combined reforming of methane (CRM), which utilizes CH₄ and CO₂ from biogas and H₂O, has attracted attention. Nickel-based catalysts are extensively studied for CRM due to their high activity; however, they suffer from rapid deactivation caused by coking. In this work, Ni/Al₂O₃ egg-shell type pellet catalyst was investigated to address these challenges. To simplify synthesis, a novel developed wetness impregnation (DWI) method was introduced, allowing the concentration of the active phase near the outer region of the pellet. Characterization results revealed that the egg-shell catalysts exhibited higher surface nickel concentrations than their actual nickel content. Although this localization of the active phase led to lower nickel dispersion compared to homo type catalysts, it suggested improved accessibility of reactants to active sites and enhanced reducibility at lower temperatures. Among catalysts, the 2E-T_0.1 catalyst (2 wt% Ni, 0.10 mm egg-shell thickness) showed the highest CH₄ and CO₂ conversions, improved long-term stability, and superior coking resistance at 700 °C, compared to the homo type catalysts. Additionally, controlling the steam ratio indicated the possibility of producing H₂-rich syngas (H₂/CO). This indicates the role of spatial nickel distribution in optimizing catalytic performance and coking resistance. In particular, egg-shell catalyst with thin shell offers a promising strategy for efficient biogas reforming applications.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"157 ","pages":"Article 150443"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672370","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 nanoparticles and ozone pre-treatments on dark fermentation of biosolids and wine vinasses","authors":"Encarnación Díaz-Domínguez ,&nbsp;M. Eugenia Ibáñez-López ,&nbsp;Francisco Jesús Fernández-Morales ,&nbsp;James Lyng ,&nbsp;José L. García-Morales","doi":"10.1016/j.ijhydene.2025.150461","DOIUrl":"10.1016/j.ijhydene.2025.150461","url":null,"abstract":"<div><div>This study investigates the impact of carbon-encapsulated zero-valent iron (ZVI) nanoparticles, both independently and in combination with ozone pre-treatment, on the batch and semi-continuous dark fermentation of biosolids and wine vinasses in a thermophilic reactor (55 °C). The study focuses on the production of volatile fatty acids (VFA) and hydrogen, as well as the dehydratability of the digestate.</div><div>The pre-treatment with ZVI nanoparticles does not result in an overall increase in total acid production. However, it does affect the VFA profile by promoting the formation of long chain acids (C ≥ 4), notably resulting in a 37 % increase in butyric acid yield (mg/gVS_added). In terms of hydrogen yield, the use of ZVI nanoparticles shows no discernible effect. However, a significant increase in carbon dioxide yield is observed, reaching a 129 % rise compared to the control, expressed as mL/gVS_added. When combining the dosage of ZVI nanoparticles with ozone, there was observed a noticeable effect on hydrogen yield, leading to an increase (e.g. 125 %). Regarding with the dehydratability of the digestate, the pre-treatments with ZVI nanoparticles, as well as the combination of the ZVI nanoparticles with ozone, enhanced the dehydratability of the digestate by reducing the specific resistance of the cake which facilitates the subsequent waste processing.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"159 ","pages":"Article 150461"},"PeriodicalIF":8.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680058","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}