Joshi Laila , Mustafa Anwar , Muhammad Hassan , Syed Ali Abbas Kazmi , Rizwan Ali , Muhammed Ali S.A. , Muhammad Zeeshan Rafique
{"title":"Techno-economic analysis of green hydrogen production from wind and solar along CPEC special economic zones in Pakistan","authors":"Joshi Laila , Mustafa Anwar , Muhammad Hassan , Syed Ali Abbas Kazmi , Rizwan Ali , Muhammed Ali S.A. , Muhammad Zeeshan Rafique","doi":"10.1016/j.ijhydene.2024.11.140","DOIUrl":"10.1016/j.ijhydene.2024.11.140","url":null,"abstract":"<div><div>Hydrogen-based systems are garnering attention as part of efforts to achieve low-carbon emissions and net-zero targets. In developing countries, natural gas and coal serve as a primary source for hydrogen production, given their accessibility and cost-effectiveness. Green hydrogen presents a promising clean energy solution with significant potential to decarbonize the industrial sector. In this article, a techno-economic analysis has been performed for green hydrogen production using wind and solar as primary energy sources. The analysis is conducted at nine special economic zones (SEZs) and a free zone at Gwadar Sea Port using the Hybrid Optimization of Multiple Energy Resources (HOMER) Pro software. A hybrid energy system has been designed to meet the industrial electrical and hydrogen demand of 600 MWh/day and 60 tonnes H<sub>2</sub> per day, respectively. A comparative analysis of on-grid and off-grid systems across all SEZs is performed for the optimal system. A sensitivity analysis is conducted on different parameters that could impact the levelized cost of hydrogen (LCOH). The results indicate that LCOH varies from 4.19 $/kg to 8.66 $/kg for off-grid and 2.12 $/kg to 4.65 $/kg for on-grid systems which is a competitive cost to other countries. The most feasible economic zones for green hydrogen production are found to be Dhabeji and Port Qasim with the lowest LCOH of 4.19 $/kg and 4.22 $/kg for off-grid, 2.12 $/kg and 2.36 $/kg for the grid-connected system, respectively. Dhabeji also exhibits the lowest CO<sub>2</sub> emissions per year making itself the most feasible location for green hydrogen production. Grid-connected systems are a great opportunity for Pakistan to produce low-cost green hydrogen for industrial decarbonization and the country’s economic growth.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 811-828"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744538","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}
Kai Deng , Aidi He , Shiheng Ye , Wentao Lin , Weiwei Kang , Qinglu Lin , Junjie Zhu , Zhirong Liang
{"title":"Addressing NOX formation mechanisms of NH3/H2 dual-fuel flame under DBD plasma-assisted combustion resolved by intermediate radicals analysis","authors":"Kai Deng , Aidi He , Shiheng Ye , Wentao Lin , Weiwei Kang , Qinglu Lin , Junjie Zhu , Zhirong Liang","doi":"10.1016/j.ijhydene.2024.11.346","DOIUrl":"10.1016/j.ijhydene.2024.11.346","url":null,"abstract":"<div><div>In order to attain carbon-neutrality, the implementation of zero-carbon fuel containing ammonia (NH<sub>3</sub>)/hydrogen (H<sub>2</sub>) has become more and more practically popular. This work focuses on addressing the combustion performance and nitrogen oxide (NO<sub>X</sub>) formation mechanisms of dielectric barrier discharge (DBD) plasma-assisted NH<sub>3</sub>/H<sub>2</sub> dual-fuel flames at varied plasma voltages (<em>V</em><sub>AC</sub>) and hydrogen ratios (<em>Z</em><sub>H2</sub>), which were resolved by PLIF and chemiluminescence techniques concurrently. The analytical results obtained show that <em>V</em><sub>AC</sub> had positive effectiveness on contributing to NO<sub>X</sub> emissions with a threshold of <em>V</em><sub>AC</sub> = 11 kV found for triggering NO<sub>X</sub> formation. With <em>V</em><sub>AC</sub> increased from 11 kV to 12.5 kV constantly, NO<sub>X</sub> grew dramatically by 8.3%–12.3% (<em>Z</em><sub>H2</sub> elevated from 0.2 to 0.3). This phenomenon was mainly because of the growing propagation of OH radicals being faster than that of NH<sub>2</sub> radicals. Besides, three NO<sub>X</sub> formation regions, including low-formation region, medium-formation region and high-formation region were determined, which essentially reflected that hydrogen ratio predominated over discharge voltage on forming NOx. Moreover, the inter-relationship between flame surface density (FSD, revealing combustion intensity) and NO<sub>X</sub> has been comprehensively explored. And high DBD-<em>V</em><sub>AC</sub> (with low hydrogen blending ratio) was found to significantly promote the FSD resulting in better combustion intensity, but caused inappreciable NO<sub>X</sub> formation. In upcoming future application, high voltage of DBD plasma could be utilized for replacing high hydrogen blending ratio in ammonia/hydrogen combustion, to obtain promotional combustion intensity with effective NO<sub>X</sub> control.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 938-951"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744842","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}
S.N. Gaydamaka , M.A. Gladchenko , I.V. Kornilov , M.N. Ryazanov , M.A. Gerasimov , A.A. Kornilova
{"title":"Anaerobic decomposition of substandard pet food as a raw material source for producing hydrogen from methane","authors":"S.N. Gaydamaka , M.A. Gladchenko , I.V. Kornilov , M.N. Ryazanov , M.A. Gerasimov , A.A. Kornilova","doi":"10.1016/j.ijhydene.2024.11.306","DOIUrl":"10.1016/j.ijhydene.2024.11.306","url":null,"abstract":"<div><div>A potential raw material for producing hydrogen (the main carrier for the accumulation, storage and transportation of energy) is methane from biogas. An approach to producing biogas with a high methane content (69–72%) from waste commercial dry and wet food for dogs and cats under mesophilic conditions has been demonstrated. For 27–28 days under anaerobic conditions, the degree of biotransformation of waste was 60–88%. As a result of mineralization of watered organic waste, the content of ammonium nitrogen and phosphorus in the form of phosphates amounted to 676–887 mgNH<sub>4</sub><sup>+</sup>/l and 77–160 mgPO<sub>4</sub><sup>3-</sup>/l, respectively. In anaerobically treated effluent, accumulation of sulfide ions up to 22 mg/l was observed. The solid sediment and anaerobically treated effluent (liquid fraction) obtained upon completion of the biotransformation of pet food waste are a potential organic fertilizer for agricultural needs, and methane from biogas is a raw material for producing hydrogen and pure carbon for the needs of the nanoindustry.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 803-810"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744436","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}
Je Yeon Choi, Jong Gyeong Kim, Hyung Joo Lee, Chanho Pak
{"title":"Advanced iridium catalysts on multi-porous tantalum oxide supports for efficient proton exchange membrane water electrolysis","authors":"Je Yeon Choi, Jong Gyeong Kim, Hyung Joo Lee, Chanho Pak","doi":"10.1016/j.ijhydene.2024.11.405","DOIUrl":"10.1016/j.ijhydene.2024.11.405","url":null,"abstract":"<div><div>Reducing the loading of precious metals such as Ir and Pt while maintaining the performance of membrane electrode assembly (MEA) with highly active oxygen evolution reaction (OER) catalysts is a significant challenge in the development of efficient proton exchange membrane water electrolyzers (PEMWEs). This study presents a highly active and cost-effective catalyst consisting of iridium supported on multi-porous tantalum oxide (M−Ta₂O₅), which integrates both macropores and mesopores. The iridium nanostructures supported on the M−Ta<sub>2</sub>O<sub>5</sub> enhance the utilization of Ir and exhibit larger electrochemical surface areas. With a 30 wt% Ir loading, the Ir/M−Ta₂O₅ catalyst demonstrates an overpotential of 290.4 ± 3.5 mV at a current density of 10 mA cm⁻<sup>2</sup> and a mass activity of 730.5 ± 44.6 A g<sub>Ir</sub>⁻<sup>1</sup> at 1.55 V<sub>RHE</sub>. Consequently, Ir/M−Ta<sub>2</sub>O<sub>5</sub> can be effectively utilized to fabricate MEA with an Ir loading of 0.2 mg cm<sup>−2</sup> and Nafion® 115 membrane. At the single-cell level, this catalyst achieves a current density of 2.5 A cm⁻<sup>2</sup> at 1.89 V, underscoring the potential of Ir/M−Ta<sub>2</sub>O<sub>5</sub> as a highly efficient and cost-affordable OER catalyst. This work highlights the promise of Ir/M−Ta₂O₅ in reducing the reliance on precious metals, thereby contributing to the economic and environmental sustainability of PEMWEs.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 57-65"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747329","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":"Kinetic study of microwave heating-assisted chemical looping dry reforming of methane over magnetite","authors":"Mohammad Khodabandehloo , Jaber Shabanian , Jean-Phillipe Harvey , Jamal Chaouki","doi":"10.1016/j.ijhydene.2024.11.358","DOIUrl":"10.1016/j.ijhydene.2024.11.358","url":null,"abstract":"<div><div>Dry reforming of methane carried out via the chemical looping concept and employing microwave heating is a sustainable syngas (a mixture comprising hydrogen and carbon monoxide) production technology. Understanding the intrinsic reaction kinetics of reduction and oxidation is essential for successful scale-up of this technology. By employing magnetite as a microwave absorber oxygen carrier, we investigated the reaction kinetics at bulk temperatures in the range of 650–800 °C for reduction and 500–650 °C for oxidation. Results indicated both reactions followed a phase-boundary controlled (contracting sphere) reaction mechanism. Upon developing the reaction kinetics based on solid temperature relevant to microwave-heated particles, we estimated the activation energy to be 85 kJ/mol for the reduction reaction and 22 kJ/mol for the oxidation reaction. By developing the reaction kinetic of the reduction under microwave heating and based on bulk temperature, we estimated 68 kJ/mol as the activation energy of the reduction reaction. Comparing these values with the activation energy of magnetite reduction by methane under conventional heating (around 90 kJ/mol) indicated that microwave irradiation apparently decreased the activation energy. Consequently, by developing the reaction kinetics based on an appropriate temperature, i.e., solid temperature, we demonstrated that microwave primarily had a thermal effect in our study, increasing the reaction rate constant, rather than a non-thermal effect, like altering the activation energy.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1079-1086"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744433","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}
Shengyong Zhao , Peng Li , Siyuan Huang , Yingshuang Yan , Zilong Liu , Zhengpeng Duan , Lanlan Cai
{"title":"Investigation of oxygen transport in porous transport layer with different porosity gradient configurations using phase field method","authors":"Shengyong Zhao , Peng Li , Siyuan Huang , Yingshuang Yan , Zilong Liu , Zhengpeng Duan , Lanlan Cai","doi":"10.1016/j.ijhydene.2024.11.260","DOIUrl":"10.1016/j.ijhydene.2024.11.260","url":null,"abstract":"<div><div>Minimizing oxygen accumulation in the porous transport layer (PTL) is crucial for reducing mass transfer losses in proton exchange membrane (PEM) electrolyzer. This study develops a two-dimensional transient model of gas-liquid two-phase flow at the anode of PEM electrolyzer using the phase field method. The model investigates the mechanisms of oxygen transport and the interactions among various oxygen paths in PEM electrolyzer. We explore the impact of porosity gradient configurations in the PTL and the presence of a surface microporous layer (MPL) on oxygen transport. The findings indicate that for PTL with an average porosity of 60%, forward gradient configuration—where porosity increases from the catalyst layer (CL) towards the channel (CH)—promotes the merging of bubble sites and path contraction, thereby reducing oxygen saturation. The optimal gradient configuration, with porosities of 50% at the CL and 70% at the CH, achieves a 29.5% reduction in oxygen saturation. Conversely, reverse gradient configuration, with decreasing porosity from CL to CH, results in increased oxygen saturation. The addition of surface MPL further lowers oxygen saturation and shortens oxygen breakthrough time; smaller MPL particle sizes correspond to lower oxygen saturation and shorter breakthrough times. This study provides valuable insights for the optimal design of PTL structures in PEM electrolyzers.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1087-1100"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744542","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":"Innovative automatic optimization method for ejectors in fuel cell vehicles based on a combined optimization strategy","authors":"Chao Li, Jianqin Fu, Yaorui Shen, Yuting Huang","doi":"10.1016/j.ijhydene.2024.11.382","DOIUrl":"10.1016/j.ijhydene.2024.11.382","url":null,"abstract":"<div><div>Ejectors exhibit significant advantages in the field of fuel cell vehicles, playing a crucial role in promoting their development. Their fixed structure results in non-parasitic power consumption, yet this also poses greater challenges for optimizing their structural parameters across different application scenarios. However, most of the research focuses on the positions such as the nozzle and mixing section, and there is no effective method to determine the values of all parameters. In order to solve the above problems, an innovative automatic optimization method using a combined optimization strategy (COS) with a weight factor is proposed for achieving multi-objective optimization of ejectors. The COS combines parametric modeling, computational fluid dynamics, approximate modeling techniques, and multi-objective optimization to tune the full parameters. The results indicate that the COS achieves a high performance prediction accuracy with an R<sup>2</sup> value of 0.9711 and a root mean square error of 9.23E-6. Furthermore, in the case of 300 computational samples, the computational time is reduced by 54.7%. The entrainment ratio has been increased to 4.17 times its pre-optimization level. The novel method not only ensures the simulation accuracy but also significantly enhances computational efficiency, making it a powerful tool for guiding the production and optimization of ejectors.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1146-1158"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744839","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}
Cristina Efremov , Thanh Tuan Le , Prabhu Paramasivam , Krzysztof Rudzki , Sameh Muhammad Osman , Thanh Hieu Chau
{"title":"Improving syngas yield and quality from biomass/coal co-gasification using cooperative game theory and local interpretable model-agnostic explanations","authors":"Cristina Efremov , Thanh Tuan Le , Prabhu Paramasivam , Krzysztof Rudzki , Sameh Muhammad Osman , Thanh Hieu Chau","doi":"10.1016/j.ijhydene.2024.11.329","DOIUrl":"10.1016/j.ijhydene.2024.11.329","url":null,"abstract":"<div><div>The co-gasification of waste biomass and low-quality coal to produce syngas as fuel is an effective and sustainable approach in the waste-to-energy paradigm. The modeling of this process is however complex and time-consuming. The data-driven machine learning (ML) approaches enhanced with explainable artificial intelligence (XAI) are capable of solving this issue. Hence, in this study, five different ML techniques including Linear Regression (LR), Support Vector Regression (SVR), Gaussian Process Regression (GPR), Extreme Gradient Boosting (XGBoost), and Categorical Boosting (CatBoost) were employed for the model-prediction. The ultimate analysis, proximate analysis, and operation setting data were employed for the control factors syngas yield and lower heating value (LHV) prediction. The prediction results showed that XGBoost was superior to other ML approaches with an R<sup>2</sup> value of 0.9786, mean squared error (MSE) of 10.82, and mean absolute percentage error (MAPE) of 9.8% during model testing of the syngas yield model. In the case of the syngas LHV model an R<sup>2</sup> value of 0.9992, MSE of 0.03, and MAPE of 0.83% was observed. XGBoost was superior for both syngas yield and LHV models. The analysis of feature importance and its quantification was conducted by Shapley Additive Explanations (SHAP) and Local Interpretable Model-agnostic Explanations (LIME). SHAP and LIME approaches revealed that reaction temperature and biomass mixing ratio were the most important control factors for the syngas yield model.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 892-907"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744945","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}
Kapil Khandelwal, Castaneda S. German, Ajay K. Dalai
{"title":"Technoeconomic analysis of supercritical water gasification of canola straw for hydrogen production","authors":"Kapil Khandelwal, Castaneda S. German, Ajay K. Dalai","doi":"10.1016/j.ijhydene.2024.11.088","DOIUrl":"10.1016/j.ijhydene.2024.11.088","url":null,"abstract":"<div><div>Production of hydrogen from renewable sources is gaining popularity to reduce our dependency on non-renewable fossil fuels to meet growing hydrogen demand. However, despite the great prospect of production of hydrogen from sustainable sources such as lignocellulosic biomass via supercritical water gasification (SCWG), it has not been commercialized at a large industrial scale. This is due to the lack of detailed economic analysis of SCWG of lignocellulosic biomass, owing to the complexity of the SCWG process and the heterogeneous nature of biomass. Therefore, to address this knowledge gap, in this study, a detailed technoeconomic analysis (TEA) of a conceptual SCWG pilot having the capacity to process 200 tons/day of canola straw for the production of green hydrogen was conducted. Mass and energy balance of conceptual pilot was performed using Aspen Plus ® simulation by utilizing experimental data and hydrogen yield of 41.62 mmol/g was obtained at optimized reaction conditions of 500 °C, 23 MPa, and 10 wt%. Economic analysis based on calculated mass and energy balance was performed using SuperPro software. Cash flow analysis for capital expenses (CAPEX) of 81 Million USD showed a high internal rate of return (IRR) of 38.9% and an undiscounted net present value (NPV) of 548 million USD. A minimum selling price (MSP) of 3.38 USD/kg H<sub>2</sub> for produced hydrogen was estimated, which is lower than other renewable hydrogen production processes and comparable to non-renewable hydrogen production technologies. A high positive IRR and NPV, while a lower MSP showed that despite having a low technological readiness level (TRL) of 4, SCWG of lignocellulosic biomass is a technically feasible and economically viable process for the production of hydrogen. Furthermore, sensitivity analysis also revealed that capital expenses (CAPEX) and canola straw price had the highest influence on net present value (NPV) and MSP. However, overall NPV and MSP were highly stable to changes in parameters highlighting the robustness of the economic analysis.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1067-1078"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744540","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}
Huiyu Shang , Fan Yu , Xuesong Yang , Yaowen Xing , Xiahui Gui
{"title":"Mechanistic insights into the use of flotation tail coal for enhanced water electrolysis in hydrogen production","authors":"Huiyu Shang , Fan Yu , Xuesong Yang , Yaowen Xing , Xiahui Gui","doi":"10.1016/j.ijhydene.2024.11.407","DOIUrl":"10.1016/j.ijhydene.2024.11.407","url":null,"abstract":"<div><div>Coal-assisted water electrolysis for hydrogen production (CAWE) is a promising method for the efficient utilization of coal resources and the sustainable generation of hydrogen. However, identifying a cost-effective and efficient carbon source remains a critical and ongoing challenge. This study proposes the use of flotation tail coal as a novel and efficient carbon source for water electrolysis. Through a combination of electrochemical experiments, thermodynamic analysis, and comprehensive material characterization techniques, this research explores the effectiveness of tail coal-assisted water electrolysis for hydrogen production (TCAWE) in enhancing hydrogen production efficiency. It is found that the catalytic effect of minerals, particularly iron and manganese ions, is instrumental in significantly reducing energy consumption and enhancing the anodic oxidation reactions in the CAWE process. Flotation tail coal, with its high content of these catalytic minerals and favorable hydrophilic surface properties, not only lowers the electrolysis voltage but also increases the hydrogen yield compared to traditional coal sources. This research innovatively demonstrates that utilizing flotation tail coal in water electrolysis offers a dual benefit: it provides a cost-effective, abundant carbon source while promoting a more efficient and sustainable hydrogen production process. Additionally, this approach is expected to facilitate the resource utilization of waste flotation tail coal.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 870-881"},"PeriodicalIF":8.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744541","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}