International Journal of Hydrogen Energy最新文献

{"title":"Surface engineering of cobalt silicate nanobelts boosting electrocatalytic water-splitting properties","authors":"Zhixuan Han ,&nbsp;Xianfang Tan ,&nbsp;Yifu Zhang ,&nbsp;Wenxu Huang ,&nbsp;Hanle Yang ,&nbsp;Huihao Zhang ,&nbsp;Tian Liang ,&nbsp;Changgong Meng ,&nbsp;Xiaoming Zhu","doi":"10.1016/j.ijhydene.2026.153971","DOIUrl":"10.1016/j.ijhydene.2026.153971","url":null,"abstract":"<div><div>The development of highly efficient and low-cost electrocatalysts for water splitting represents a crucial yet challenging research objective, particularly due to the requirement for precise control over composition and structure through surface engineering strategies. Cobalt silicate (denoted as CS) has been considered as a promising oxygen evolution reaction (OER) catalyst, however, its overpotential (<em>η</em>) is comparatively high and it is important practical significance to reduce <em>η</em>. Herein, we propose a surface engineering approach to optimize the electronic structure of CS by encapsulating it with a Co-zeolitic imidazolate framework (Co-ZIF), forming a CS/Co-ZIF composite (denoted as CS-Z). The experimental data demonstrates that the geometric effect and the introduced active sites are benefit for more active sites exposing, as well as that the DFT results prove that Co-ZIF encapsulation guarantees quick kinetics and enhances the conductivity, resulting in boosting OER properties. At 10 mA cm⁻², CC-Z2 reaches the <em>η</em> of 295 mV, and this value is lower than the values of most metal silicates. CS-Z2||CS-Z2 system even exhibits the overall water splitting (OWS) properties with a low voltage of 1.42 V at 10 mA cm⁻². The underlying mechanisms for the enhanced electrocatalytic performance are systematically discussed. The current research work offers a potential strategy for the exploration of high-efficient electrocatalysts based on silicates through surface engineering strategy, which will shed light on developing future renewable energy conversion technologies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"218 ","pages":"Article 153971"},"PeriodicalIF":8.3,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187656","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":"Environment, social and governance integrated process design for global decentralised sustainable methanol production","authors":"Muhammad Yousaf Arshad ,&nbsp;Volker Hessel ,&nbsp;Sumera Arshad ,&nbsp;David Lewis ,&nbsp;Quoc-Phong Ho ,&nbsp;Nam Nghiep Tran","doi":"10.1016/j.ijhydene.2026.153878","DOIUrl":"10.1016/j.ijhydene.2026.153878","url":null,"abstract":"<div><div>Methanol is a strategic bulk chemical and energy carrier. It is central to sustainable industrial transformation and emerging carbon-neutral roadmaps. Conventional production through centralised natural gas reform remains dominant, but it faces critical challenges due to fossil fuel dependence, greenhouse gas emissions, and inflexible infrastructure. The aim is to critically compare centralised fossil routes with decentralised low-carbon options under an ESG-integrated process and risk lens. It contrasts decentralised pathways with conventional centralised routes. Emphasis is placed on renewable-integrated alternatives, including biomass gasification, CO₂ hydrogenation, electrochemical conversion and hybrid thermochemical-electrochemical processes. Recent progress in catalysts, modular microchannel reactor systems, and carbon capture integration has further supported decentralisation transition with increased selectivity, thermal efficiency, and environmental performance. The feasibility of decentralised production system is assessed through integrated process design engineering evaluation, and sustainability metrics within an environmental, social, and governance (ESG) framework. Region-specific deployment patterns support climate-centred transition and stranded-asset risk while keeping methanol commercially competitive. The review further highlights the role of biochar co-production, carbon credit markets, and distributed renewable energy in strengthening modular methanol, particularly in biomass-rich regions with strong decarbonisation policies. A transformative approach is advanced by integrating computational modelling, regional adaptability, and ESG compliance into process design. Regional case studies from Australia, Europe, and Latin America provide an in-depth analysis of how renewable resources and policy incentives are shaping distributed methanol hubs. The study results that decentralised methanol is more than a sustainable option; it is a competitive strategy for energy security, industrial resilience, and climate-aligned growth. Future efforts will enhance ESG-related design measurements and regional implementation strategies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153878"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186914","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":"Effect of hydrogen addition on the energy and environmental performance of a compression ignition dual-biofuel engine","authors":"Alfredas Rimkus","doi":"10.1016/j.ijhydene.2026.153709","DOIUrl":"10.1016/j.ijhydene.2026.153709","url":null,"abstract":"<div><div>This study evaluates a compression-ignition engine operated on neat diesel (D100), neat hydrotreated vegetable oil (HVO100), and dual-fuel (D–F) modes in which HVO serves as the pilot while the gaseous fuel is natural gas (NG), simulated biogas (BG: 70 % CH₄/30 % CO₂), or hydrogen-enriched biogas (BG + H₂, 10–30 vol% of the CH₄ fraction). The gas energy share (<span><math><mrow><mi>G</mi><mi>E</mi><mi>S</mi></mrow></math></span>) varies from 0 % to 80 %. Relative to diesel, HVO100 shortens ignition delay, lowering premixed heat release, ensures similar brake thermal efficiency, and lowers CO, HC, NO_x, smoke, and CO₂. In D–F operation, CO₂ in BG dilutes the charge, narrowing flammability and slowing combustion at high λ (&gt;1.9). NO_x decreases by up to ∼90 %, but incomplete-combustion pollutants rise sharply (CO up to 14 time, HC up to 6 time), smoke increases by ∼70 %, CO₂ by ∼22 %, and efficiency drops by as much as ∼45 % relative to HVO100. Hydrogen acts as a main factor by widening lean flammability limits, accelerating burning, and stabilizing D–F combustion. With 30 vol% H₂ (HVO_BG + H30), medium-load efficiency approaches that of neat HVO100; CO and HC drop by ∼30 % and ∼45 % versus HVO_BG (though they remain above HVO100), while smoke, NO_x, and CO₂ decrease concurrently—by up to ∼80 %, ∼53 %, and ∼12 %, respectively, relative to HVO100. Considering life-cycle effects – biomass CO₂ uptake and oxidation of biogenic CH₄ – hydrogen-assisted dual biofuels further reduce greenhouse-gas impacts compared with fossil diesel.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153709"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187051","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":"Constructing S-scheme heterojunctions via encapsulating ZnIn2S4 nanoflakes on oxygen-vacancy decorated cube-shaped BiFeO3 microcrystals for boosting photocatalytic H2 production","authors":"Ming Du ,&nbsp;Yilin Zhang ,&nbsp;Jiayong Xiao ,&nbsp;Liushun Wang ,&nbsp;Shibing Zou ,&nbsp;Hongjun Wu ,&nbsp;Qiang Li ,&nbsp;Zhangyang Zhou ,&nbsp;Yongdan Zhu ,&nbsp;Jinqiao Yi","doi":"10.1016/j.ijhydene.2026.153855","DOIUrl":"10.1016/j.ijhydene.2026.153855","url":null,"abstract":"<div><div>Achieving efficient spatial separation of photogenerated carriers and utilization of solar energy are of paramount importance for solar-to-chemical energy conversion, yet they remain a critical challenge until now. Herein, a unique cube-shaped BiFeO₃ microcrystal with oxygen vacancies (O_V) defects was encapsulated by ZnIn₂S₄ nanoflakes to construct BiFeO₃@ZnIn₂S₄ (BFO@ZIS) core-shell S-scheme nanohybrid photocatalyst via a straightforward two-step hydrothermal method. The optimized BFO@ZIS nanohybrid photocatalyst delivers a marked improvement in photocatalytic hydrogen evolution (PHE), achieving a hydrogen evolution rate of 0.95 mmol h⁻¹·30 mg⁻¹ under visible light irradiation, outperforming pristine ZnIn₂S₄ nanoflakes. The remarkable activity and exceptional stability of the O_V decorated BFO@ZIS are attributed to the strong synergistic effects at the interface, which substantially broaden the light absorption range, enhance the interface charge transport capability, and expose more active sites. Crucially, the comprehensive experiments and theoretical calculations demonstrate that the well-aligned internal electric field (IEF) in the distinctive BFO@ZIS core-shell configuration drives spatial charge separation along an S-scheme pathway, thereby greatly enhancing surface charge separation and reaction kinetics. This study provides crucial guidance for the synergistic enhancement of PHE performance through vacancy defects and the IEF in S-scheme heterojunctions.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153855"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187055","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":"Catalytic hydrogen production from NaBH4 methanolysis using phosphoramidite-stabilized ruthenium nanoparticles","authors":"Simay Ince ,&nbsp;Zeynep Demirkan ,&nbsp;Sibel Duman ,&nbsp;Mustafa Kemal Yilmaz ,&nbsp;Bülent Kaya","doi":"10.1016/j.ijhydene.2026.153879","DOIUrl":"10.1016/j.ijhydene.2026.153879","url":null,"abstract":"<div><div>Here, ruthenium nanoparticles (1@RuNPs, 2@RuNPs, 3@RuNPs) stabilized with monodentate phosphoramidide ligands based on binanaphthyl skeletons with different steric properties (R: methyl(1), ethyl(2) and isopropyl(3)) were synthesized. To our knowledge, this study reports the first use of phosphoramidide ligands as stabilizers for ruthenium nanoparticles and systematically demonstrates their catalytic efficiency in hydrogen production via NaBH₄ methanolysis. Their physical and chemical properties were elucidated using advanced characterization techniques, and accordingly, phosphoramidide ligands effectively stabilize ruthenium nanoparticles, producing particles with a narrow size distribution, small dimensions (1.36-1.41 nm) and a monodisperse structure. The catalytic performance during NaBH₄ solvolysis was investigated, and 2@RuNPs catalyzed NaBH₄ methanolysis 1.48 times faster than the others, reaching a hydrogen production rate of 452.9k mL H₂/(g_cat∗min) in 10 s (k = 10³, HPR_10sec). During kinetic studies for NaBH₄ methanolysis, activation energies for those catalyzed by 1@RuNPs, 2@RuNPs, and 3@RuNPs were calculated as 19.80 ± 0.53, 25.43 ± 0.27, and 44.57 ± 0.50 kJmol^-1, respectively.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153879"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146147518","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":"Regulatory gap analysis for risk-based design of liquefied hydrogen maritime transport vessels","authors":"Chybyung Park ,&nbsp;Hayoung Jang ,&nbsp;Byongug Jeong ,&nbsp;Peilin Zhou ,&nbsp;Haibin Wang ,&nbsp;Ana Mesbahi ,&nbsp;Insik Hwang ,&nbsp;Yinhua Liu ,&nbsp;M.P. Mujeeb-Ahmed","doi":"10.1016/j.ijhydene.2026.153840","DOIUrl":"10.1016/j.ijhydene.2026.153840","url":null,"abstract":"<div><div>The increasing use of hydrogen for decarbonization and net-zero objectives has positioned the maritime transport of liquefied hydrogen (LH₂) as a critical element of the global energy transition. However, safety concepts for LH₂ storage, handling, and transportation remain underdeveloped, while technological advancements are still in their infancy. This study examines the fundamental properties of hydrogen and identifies three principal risks: its wide explosion and flammability limits, permeation, and leakage. A comprehensive review of international regulations and classification society guidelines on low-flashpoint fuels reveals that no current framework provides detailed safety requirements for LH₂ carriage. To address thesse limitations, this paper emphasizes the need for advanced leakage detection technologies, permeation-resistant materials, and risk assessment methodologies that support the development of robust safety guidelines. The findings contribute to establishing a foundation for the safe design, operation, and regulation of LH₂ transport vessels.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153840"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186980","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 evaluation of wellbore cement integrity in underground hydrogen storage environments","authors":"Basel Ahmad Shabab,&nbsp;Rohit Pandey","doi":"10.1016/j.ijhydene.2026.153957","DOIUrl":"10.1016/j.ijhydene.2026.153957","url":null,"abstract":"<div><div>Ensuring the long-term integrity of wellbore cement is essential for the safe and sustainable deployment of underground hydrogen storage (UHS) in depleted reservoirs. Class H cement, commonly used in gas wells, is susceptible to chemical alteration when exposed to hydrogen and reactive formation fluids under reservoir conditions. However, the coupled effects of hydrogen and field-retrieved fluids on cement chemistry and mechanical performance remain poorly understood. This study replicates reservoir environments using formation waters collected from producing gas fields. Class H cement samples were cured for 45 days at 50 °C and subsequently exposed for 75 days to hydrogen and helium gases, each in combination with two field-derived formation waters, at 1000 psi. Pre- and post-exposure characterization included porosity, permeability, and tensile-strength testing, supplemented by geochemical and microstructural analyses of the cement and formation water samples. Results reveal visible surface precipitation and mineral alteration, dominated by fluid chemistry. Formation-water exposure induced localized decalcification of C–S–H and concurrent precipitation of halite and magnesium-bearing minerals. Despite this chemical modification, samples exhibited reduced porosity and permeability alongside increased tensile strength, suggesting a pore-filling and matrix densification mechanism. These findings provide experimental evidence that Class H cement may retain its structural integrity under UHS-relevant conditions.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153957"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187001","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 management and techno-economic-environmental analysis of hybrid renewable energy based isolated microgrid with various energy storage technologies","authors":"Subhash Yadav ,&nbsp;Pradeep Kumar ,&nbsp;Sajjan Kumar ,&nbsp;Ashwani Kumar","doi":"10.1016/j.ijhydene.2026.153890","DOIUrl":"10.1016/j.ijhydene.2026.153890","url":null,"abstract":"<div><div>Excess energy (<em>P</em>_<em>Exc</em>) in isolated microgrids based on hybrid renewable energy systems (HRES) causes reliability and protection issues. This paper presents the optimal design of HRES by minimizing the levelized cost of energy (LCOE) and <em>P</em>_<em>Exc</em> management in isolated microgrids (IMGs) with different types of energy storage systems (ESS), including battery energy storage (BES) technologies, pumped hydro storage (PHS), hydrogen energy storage (HES), and thermal energy storage (TES). The IMGs design with the various BES technologies minimizes the LCOE in the range of 0.1050 $/kWh-0.3307 $/kWh, ensuring supply reliability above 96% and limiting <em>P</em>_<em>Exc</em> generation below 10%. Similarly, the IMGs with PHS, HES, and TES offer the electricity at LCOEs of 0.4094 $/kWh, 0.2824 $/kWh, and 0.1429 $/kWh, respectively. The optimally designed IMG with the HES reduces the highest 92.39% greenhouse gas emissions. The African Vultures Optimization Algorithm (AVOA) minimizes the LCOE with a faster convergence rate and higher accuracy.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153890"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187054","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":"Assessing the market potential of low-carbon electrolytic hydrogen production using grid electricity","authors":"Zilong Wang","doi":"10.1016/j.ijhydene.2026.153901","DOIUrl":"10.1016/j.ijhydene.2026.153901","url":null,"abstract":"<div><div>Low-carbon electrolytic hydrogen is primarily produced using renewable electricity, but its large-scale development is constrained by high electricity costs. While using low-price grid electricity for hydrogen production may be economical, the fossil-fuel generation within the grid mix means that not all grid power guarantees a low-carbon product. This paper develops a producer profit-maximization model to assess the market potential of producing grid-powered electrolytic hydrogen compliant with the UK's low-carbon standard. Results indicate that grid-only production remains uneconomical even with subsidies. While supplementing renewables with grid electricity can reduce low-carbon electrolytic hydrogen prices by over 7% and increase annual production by over 30%. The optimal hydrogen production concentrates during low-price periods of grid electricity, allowing the producer to consume surplus renewable generation and provide flexibility to the electricity market. Onshore wind offers the best profitability among renewables. The key economic drivers of low-carbon electrolytic hydrogen supply are its price and subsidies.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153901"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186999","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":"Electricity-hydrogen-thermal energy system capacity configuration and scheduling optimization considering multiple energy scenarios","authors":"Ziqi Sun ,&nbsp;Zheng Zhou ,&nbsp;Yunfeng Peng","doi":"10.1016/j.ijhydene.2026.153756","DOIUrl":"10.1016/j.ijhydene.2026.153756","url":null,"abstract":"<div><div>To address the uncertainty of renewable energy and the energy supply-demand imbalance in energy island scenarios, and to improve the adaptability of integrated energy systems to different energy scenarios in off-grid mode, this paper proposes an off-grid electricity-hydrogen-thermal energy system that incorporates heat recovery from hydrogen fuel cell. The proposed system relies on renewable energy to meet electricity, hydrogen, and thermal demands. The system integrates a thermal storage tank to recover and store waste heat from hydrogen fuel cell, supplementing thermal load demand and improving system efficiency. Additionally, we design a capacity configuration and operational optimization strategy to minimize system investment cost and optimize energy allocation. Four energy scenarios from an industrial base in Northwest China are used to validate the feasibility and adaptability of the proposed energy system and optimization method. The results show that the model achieves complete energy self-sufficiency through renewable energy and energy supply-demand balance. The proposed system enables average energy and exergy efficiency to increase by 3.15 % and 1.2 %. Compared to single storage systems, the proposed multi-type complementary approach enhances energy and exergy efficiency by at least 8.01 % and 13.54 % during severe power shortages.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"217 ","pages":"Article 153756"},"PeriodicalIF":8.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187003","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}