International Journal of Hydrogen Energy最新文献_第3页

Surface engineering of cobalt silicate nanobelts boosting electrocatalytic water-splitting properties 提高电催化水分解性能的硅酸钴纳米带表面工程

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-17 Epub Date: 2026-02-13 DOI: 10.1016/j.ijhydene.2026.153971

Zhixuan Han , Xianfang Tan , Yifu Zhang , Wenxu Huang , Hanle Yang , Huihao Zhang , Tian Liang , Changgong Meng , Xiaoming Zhu

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 (η) is comparatively high and it is important practical significance to reduce η. 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 η 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.

开发高效、低成本的水分解电催化剂是一个至关重要但具有挑战性的研究目标，特别是由于需要通过表面工程策略精确控制成分和结构。硅酸钴（CS）是一种很有前途的析氧反应（OER）催化剂，但其过电位（η）较高，降低η具有重要的实际意义。在此，我们提出了一种表面工程方法来优化CS的电子结构，通过将其封装在co -沸石咪唑盐框架（Co-ZIF）中，形成CS/Co-ZIF复合材料（标记为CS- z）。实验数据表明，几何效应和引入活性位点有利于更多活性位点的暴露，DFT结果表明，Co-ZIF包封保证了快速动力学和提高电导率，从而提高了OER性能。在10 mA cm−2时，CC-Z2的η值达到295 mV，低于大多数金属硅酸盐的η值。CS-Z2系统在10ma cm−2电压下具有1.42 V的整体水分解（OWS）特性。系统地讨论了电催化性能增强的潜在机制。目前的研究工作为通过表面工程策略探索基于硅酸盐的高效电催化剂提供了一个潜在的策略，这将为开发未来的可再生能源转换技术提供指导。

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引用次数: 0

Environment, social and governance integrated process design for global decentralised sustainable methanol production 全球分散式可持续甲醇生产的环境、社会和治理一体化流程设计

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-13 DOI: 10.1016/j.ijhydene.2026.153878

Muhammad Yousaf Arshad , Volker Hessel , Sumera Arshad , David Lewis , Quoc-Phong Ho , Nam Nghiep Tran

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.

甲醇是一种战略性的大宗化工和能源载体。它是可持续工业转型和新兴碳中和路线图的核心。通过集中天然气改革的传统生产仍然占主导地位，但由于对化石燃料的依赖、温室气体排放和缺乏灵活性的基础设施，它面临着严峻的挑战。目的是在esg整合的过程和风险视角下，批判性地比较集中式化石燃料路线与分散式低碳选择。它将分散的路径与传统的集中路径进行了对比。重点放在可再生综合替代方案，包括生物质气化，二氧化碳加氢，电化学转化和混合热化学-电化学过程。催化剂、模块化微通道反应器系统和碳捕获集成的最新进展进一步支持了分散化转型，提高了选择性、热效率和环境性能。分散生产系统的可行性通过综合工艺设计工程评估和环境、社会和治理（ESG）框架内的可持续性指标进行评估。特定区域的部署模式支持以气候为中心的转型和搁浅资产风险，同时保持甲醇的商业竞争力。该审查进一步强调了生物炭联合生产、碳信用市场和分布式可再生能源在加强模块化甲醇方面的作用，特别是在具有强有力的脱碳政策的生物质丰富地区。通过将计算建模、区域适应性和ESG合规性集成到流程设计中，提出了一种变革性的方法。来自澳大利亚、欧洲和拉丁美洲的区域案例研究深入分析了可再生资源和政策激励如何塑造分布式甲醇中心。研究结果表明，分散甲醇不仅仅是一个可持续的选择；这是一项能源安全、工业恢复力和气候相关增长的竞争性战略。未来的工作将加强与esg相关的设计测量和区域实施策略。

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引用次数: 0

Effect of hydrogen addition on the energy and environmental performance of a compression ignition dual-biofuel engine 加氢对压缩点火双生物燃料发动机能源和环境性能的影响

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-13 DOI: 10.1016/j.ijhydene.2026.153709

Alfredas Rimkus

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 (

G E S

) 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 (>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.

本研究评估了一种压缩点火发动机，该发动机运行在纯柴油（D100）、纯加氢植物油（HVO100）和双燃料（D-F）模式下，其中HVO作为先导燃料，而气体燃料为天然气（NG）、模拟沼气（BG: 70% CH4/ 30% CO2）或富氢沼气（BG + H2， CH4组分的10-30 vol%）。气体能量份额（GES）从0%到80%不等。与柴油相比，HVO100缩短了点火延迟，降低了预混热释放，确保了相似的制动热效率，并降低了CO， HC, NOx，烟雾和CO2。在D-F操作中，BG中的CO2稀释了电荷，缩小了可燃性，并在高λ (>1.9)下减慢了燃烧。与HVO100相比，NOx减少高达~ 90%，但不完全燃烧污染物急剧上升（CO增加14倍，HC增加6倍），烟雾增加~ 70%，CO2增加~ 22%，效率下降高达~ 45%。氢的主要作用是扩大可燃性极限，加速燃烧，稳定D-F燃烧。30 vol% H2 （HVO_BG + H30）时，中载效率接近纯HVO100；与HVO_BG相比，CO和HC分别下降了~ 30%和~ 45%（尽管它们仍高于HVO100），而烟雾、NOx和CO2同时减少——相对于HVO100分别减少了~ 80%、~ 53%和~ 12%。考虑到生命周期效应-生物质CO2吸收和氧化生物源CH4 -氢辅助双生物燃料与化石柴油相比，进一步减少温室气体的影响。

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引用次数: 0

Constructing S-scheme heterojunctions via encapsulating ZnIn2S4 nanoflakes on oxygen-vacancy decorated cube-shaped BiFeO3 microcrystals for boosting photocatalytic H2 production 在氧空位修饰的立方BiFeO3微晶上包封ZnIn2S4纳米片构建s型异质结以促进光催化制氢

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-12 DOI: 10.1016/j.ijhydene.2026.153855

Ming Du , Yilin Zhang , Jiayong Xiao , Liushun Wang , Shibing Zou , Hongjun Wu , Qiang Li , Zhangyang Zhou , Yongdan Zhu , Jinqiao Yi

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.

实现光生载体的高效空间分离和太阳能的利用是太阳能-化学能转换的关键，但目前仍是一个严峻的挑战。本文采用ZnIn2S4纳米片包封具有氧空位（OV）缺陷的独特立方体BiFeO3微晶体，通过简单的两步水热法构建BiFeO3@ZnIn2S4 （BFO@ZIS）核壳S-scheme纳米杂化光催化剂。优化后的BFO@ZIS纳米杂化光催化剂在可见光照射下的析氢速率为0.95 mmol h−1·30 mg−1，明显优于原始ZnIn2S4纳米片。OV修饰BFO@ZIS具有显著的活性和优异的稳定性，这是由于在界面处具有很强的协同效应，大大拓宽了光吸收范围，增强了界面电荷输运能力，并暴露了更多的活性位点。重要的是，综合实验和理论计算表明，在独特的BFO@ZIS核壳结构中，排列良好的内部电场（IEF）沿着S-scheme路径驱动空间电荷分离，从而大大增强了表面电荷分离和反应动力学。该研究为通过s型异质结中的空位缺陷和IEF协同增强PHE性能提供了重要指导。

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引用次数: 0

Catalytic hydrogen production from NaBH4 methanolysis using phosphoramidite-stabilized ruthenium nanoparticles 磷酰胺稳定钌纳米颗粒催化NaBH4甲醇分解制氢

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-11 DOI: 10.1016/j.ijhydene.2026.153879

Simay Ince , Zeynep Demirkan , Sibel Duman , Mustafa Kemal Yilmaz , Bülent Kaya

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.

本文合成了具有不同位阻性质(R：甲基(1)、乙基（2)和异丙基(3)）的二萘基骨架单齿磷酰胺配体稳定的钌纳米颗粒（1@RuNPs, 2@RuNPs, 3@RuNPs）。据我们所知，本研究首次报道了磷酰胺配体作为钌纳米颗粒稳定剂的使用，并系统地证明了它们通过NaBH4甲醇分解制氢的催化效率。利用先进的表征技术表征了它们的物理和化学性质，因此，磷酰胺配体有效地稳定了钌纳米颗粒，产生了尺寸分布窄、尺寸小（1.36-1.41 nm）和单分散结构的颗粒。在NaBH4溶剂分解过程中，2@RuNPs催化NaBH4甲醇分解的速度是其他催化剂的1.48倍，在10s （k = 103, HPR10sec）内达到452.9k mL H2/(gcat * min)的产氢速率。在对NaBH4甲醇分解的动力学研究中，1@RuNPs、2@RuNPs和3@RuNPs催化的活化能分别为19.80±0.53、25.43±0.27和44.57±0.50 kJmol-1。

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引用次数: 0

Regulatory gap analysis for risk-based design of liquefied hydrogen maritime transport vessels 基于风险的液化氢船舶设计监管缺口分析

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-12 DOI: 10.1016/j.ijhydene.2026.153840

Chybyung Park , Hayoung Jang , Byongug Jeong , Peilin Zhou , Haibin Wang , Ana Mesbahi , Insik Hwang , Yinhua Liu , M.P. Mujeeb-Ahmed

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.

越来越多地使用氢来实现脱碳和净零目标，使液化氢（LH2）的海上运输成为全球能源转型的关键因素。然而，LH2储存、处理和运输的安全概念仍然不发达，而技术进步仍处于起步阶段。本研究考察了氢气的基本特性，并确定了三个主要风险：其广泛的爆炸和可燃性极限，渗透和泄漏。对低闪点燃料的国际法规和船级社指南的全面审查表明，目前没有框架为LH2运输提供详细的安全要求。为了解决这些限制，本文强调需要先进的泄漏检测技术、防渗透材料和风险评估方法，以支持制定稳健的安全指南。研究结果有助于为LH2运输船的安全设计、运行和监管奠定基础。

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引用次数: 0

Experimental evaluation of wellbore cement integrity in underground hydrogen storage environments 地下储氢环境下井眼水泥完整性实验评价

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-12 DOI: 10.1016/j.ijhydene.2026.153957

Basel Ahmad Shabab, Rohit Pandey

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.

确保井筒水泥的长期完整性对于在枯竭储层中安全、可持续地部署地下储氢（UHS）至关重要。H类水泥通常用于气井，在储层条件下，当暴露于氢和反应性地层流体中时，很容易发生化学蚀变。然而，氢和现场回收流体对水泥化学和力学性能的耦合影响仍然知之甚少。该研究利用从生产气田收集的地层水来模拟储层环境。H级水泥样品在50℃下固化45天，随后在1000 psi的压力下暴露于氢气和氦气中75天。暴露前和暴露后的特征包括孔隙度、渗透率和抗拉强度测试，并辅以水泥和地层水样品的地球化学和微观结构分析。结果表明：地表有明显的降水和矿物蚀变，以流体化学为主。地层水暴露诱导了C-S-H的局部脱钙，并同时沉淀了卤石和含镁矿物。尽管进行了化学改性，但样品的孔隙度和渗透率降低，抗拉强度增加，表明孔隙填充和基质致密化机制。这些发现提供了实验证据，证明H类水泥在超高温相关条件下可以保持其结构完整性。

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引用次数: 0

Energy management and techno-economic-environmental analysis of hybrid renewable energy based isolated microgrid with various energy storage technologies 基于可再生能源和多种储能技术的孤立微电网的能源管理和技术经济环境分析

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-11 DOI: 10.1016/j.ijhydene.2026.153890

Subhash Yadav , Pradeep Kumar , Sajjan Kumar , Ashwani Kumar

Excess energy (P_Exc) 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 P_Exc 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 P_Exc 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.

基于混合可再生能源系统（HRES）的孤立微电网中的过剩能量（PExc）会导致可靠性和保护问题。本文通过最小化具有不同类型储能系统（ESS）的孤立微电网（IMGs）的能源平准化成本（LCOE）和PExc管理，包括电池储能（BES）技术、抽水蓄能（PHS）、氢储能（HES）和热能储能（TES），提出了HRES的优化设计。采用各种BES技术的IMGs设计将LCOE降至0.1050美元/千瓦时-0.3307美元/千瓦时，确保了96%以上的供电可靠性，并将PExc发电量限制在10%以下。同样，具有PHS、HES和TES的img的LCOEs分别为0.4094美元/千瓦时、0.2824美元/千瓦时和0.1429美元/千瓦时。经优化设计的具有HES的IMG温室气体排放量最高，减少了92.39%。非洲秃鹫优化算法（AVOA）以更快的收敛速度和更高的精度使LCOE最小化。

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引用次数: 0

Assessing the market potential of low-carbon electrolytic hydrogen production using grid electricity 评估使用电网电力的低碳电解制氢的市场潜力

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-12 DOI: 10.1016/j.ijhydene.2026.153901

Zilong Wang

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.

低碳电解氢主要利用可再生电力生产，但其大规模发展受到高电力成本的制约。虽然使用低价格的电网电力生产氢气可能是经济的，但电网组合中的化石燃料发电意味着并非所有的电网电力都能保证低碳产品。本文开发了一个生产者利润最大化模型来评估生产符合英国低碳标准的电网电解氢的市场潜力。结果表明，即使有补贴，纯电网生产仍然不经济。而用电网供电补充可再生能源可以使低碳电解氢价格降低7%以上，年产量提高30%以上。最佳的氢气生产集中在电网电力价格较低的时期，允许生产商消耗剩余的可再生能源发电，并为电力市场提供灵活性。在可再生能源中，陆上风电的盈利能力最强。低碳电解氢供应的主要经济驱动力是其价格和补贴。

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引用次数: 0

Electricity-hydrogen-thermal energy system capacity configuration and scheduling optimization considering multiple energy scenarios 考虑多种能源方案的电-氢-热系统容量配置与调度优化

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy

Pub Date : 2026-03-13 Epub Date: 2026-02-13 DOI: 10.1016/j.ijhydene.2026.153756

Ziqi Sun , Zheng Zhou , Yunfeng Peng

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.

为解决可再生能源的不确定性和能源孤岛情景下的能源供需不平衡问题，提高离网模式下综合能源系统对不同能源情景的适应性，本文提出了一种结合氢燃料电池热回收的离网电-氢-热能源系统。拟议中的系统依靠可再生能源来满足电力、氢气和热能的需求。该系统集成了储热罐，用于回收和储存氢燃料电池产生的余热，补充热负荷需求，提高系统效率。此外，我们还设计了容量配置和运行优化策略，以最大限度地降低系统投资成本和优化能源分配。以西北某工业基地为例，采用四种能源情景，验证了所提出的能源系统和优化方法的可行性和适应性。结果表明，该模型通过可再生能源和能源供需平衡实现了完全的能源自给。该系统可使平均能源效率和火用效率分别提高3.15%和1.2%。与单一存储系统相比，在严重电力短缺的情况下，所提出的多类型互补方法可将能量和火用效率分别提高8.01%和13.54%。

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