International Journal of Hydrogen Energy最新文献

{"title":"Improved hydrogen storage capacity and cyclic properties of TiCr(FeV80) alloys by heat treatment and Ce doping","authors":"Xiaoxuan Zhang ,&nbsp;Houqun Xiao ,&nbsp;Songsong Li ,&nbsp;Ruizhu Tang ,&nbsp;Chenyu Li ,&nbsp;Yuehai Li ,&nbsp;Huazhou Hu ,&nbsp;Qingjun Chen","doi":"10.1016/j.ijhydene.2024.11.114","DOIUrl":"10.1016/j.ijhydene.2024.11.114","url":null,"abstract":"<div><div>V-based BCC solid solution alloys stand out for their exceptional hydrogen storage capacity at room temperature, yet they encounter obstacles in reversibility, cost-efficiency, and stability, hindering their widespread applications. In this work, a low-cost and high-performance Ti₃₁Cr₃₅(FeV80)₃₄ alloy was prepared by heat treatment and Ce doping with an effective dehydriding capacity of 2.28 wt% and a capacity retention rate of 93.2% after 300 cycles. Analysis using XRD and SEM reveals that heat treatment significantly reduces the accumulation of the C14 Laves phase, while Ce doping mitigates the accumulation of Ti-rich phases, thereby enhancing the compositional uniformity of the alloy. Notably, after heat treatment and Ce doping, the slope factor in the PCT curve has dropped significantly from 1.58 to 0.36, leading to an increase in reversible hydrogen storage capacity from 2.03 to 2.28 wt%. Furthermore, the dehydriding enthalpy value of the Ti₃₁Cr₃₅(FeV80)₃₄ alloy has decreased from 39.16 to 37.91 kJ/mol. Remarkably, the cycling performance of the alloy, following 1 wt% Ce doping, exhibits excellent stability. This stability is primarily attributed to the enhancement of the alloy's powdering resistance through Ce doping, which also preserves the metallic state content of Ti, Cr, and V during the cycling process. This advancement holds significant promise for the development of cost-effective and reliable hydrogen storage alloys.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 341-350"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657342","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":"Direct synthesis of liquid hydrocarbons from CO2 and H2 over bifunctional ZnCrOx-НZSM-5 combined and composite catalysts in a single reactor","authors":"Zareta M. Matieva,&nbsp;Yulia M. Snatenkova,&nbsp;Natalia V. Kolesnichenko,&nbsp;Konstantin I. Dement'ev","doi":"10.1016/j.ijhydene.2024.11.023","DOIUrl":"10.1016/j.ijhydene.2024.11.023","url":null,"abstract":"<div><div>A one-stage synthesis of gasoline fraction from CO₂ and H₂ was carried out on Zn–Cr–oxide-zeolite combined and composite catalysts. It was found that after oxidative and reduction treatment the catalysts contain ZnO and ZnCr₂O₄ phases. The one-step coprecipitation of zinc and chromium salts in the presence of zeolite allows obtaining an active bifunctional composite catalyst, each particle of which contains Zn–Cr oxide and zeolite components. A synergistic catalysis due to a closer distance of metal and acid sites increased the efficiency of such a catalyst in CO₂ hydrogenation. It was found that the optimal temperature of oxidative activation of the composite catalyst is 400 °C. With an increase in the temperature of oxidative treatment of the composite catalyst from 400 to 500 °C, part of the zinc leaves the structure of the non-stoichiometric spinel and leads to a decrease in the basicity of the catalyst, which is responsible for the activation of CO₂ on surface oxygen vacancies. Agglomerated ZnO particles blocked the pores and reduced their volume, as well as the specific surface of the catalyst. At the same time, the total acidity of the catalyst decreased. ZnO-species, which have hydrogenating activity, under the reaction conditions removed alkenes from the reaction cycle and thereby reduced the C₅₊–selectivity of the composite catalyst. Among the studied catalysts, the ZnCrO_x-НZSM-5/Al₂O₃(400) composite catalyst in the tail-gas recirculation mode at 380 °C and 10 MPa demonstrated high CO₂ conversion of 25% and high selectivity for C₅₊–HCs of 53 wt% with a high content of isoalkanes 71 wt% for 60 h. The methane content in the tail-gas did not exceed 3 vol%. The results obtained will be used to develop approaches to creating effective catalysts for one-stage CO₂ hydrogenation into valuable petrochemical products.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 320-330"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657194","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":"Oxidation kinetics and electrical properties of oxide scales formed under exposure to air and Ar–H2-H2O atmospheres on the Crofer 22 H ferritic steel for high-temperature applications such as interconnects in solid oxide cell stacks","authors":"Tomasz Brylewski ,&nbsp;Sebastian Molin ,&nbsp;Mirosław Stygar ,&nbsp;Maciej Bik ,&nbsp;Piotr Jeleń ,&nbsp;Maciej Sitarz ,&nbsp;Aleksander Gil ,&nbsp;Ming Chen ,&nbsp;Peter Vang Hendriksen","doi":"10.1016/j.ijhydene.2024.11.091","DOIUrl":"10.1016/j.ijhydene.2024.11.091","url":null,"abstract":"<div><div>A 100 h isothermal oxidation kinetics study for Crofer 22H was conducted in air and the Ar–H₂-H₂O gas mixture (p(H₂)/p(H₂O) = 94/6) in the range of 973–1123 K. The parabolic rate constant was independent of oxygen partial pressure in the range from 6.2 × 10⁻²⁴ to 0.21 atm at 1023 and 1073 K, while at 973 and 1123 K it was higher in air than in Ar–H₂-H₂O. The scales consisted of Cr₂O₃ and manganese chromium spinel with an Mn:Cr ratio dependent on the oxidation conditions. Cross-scale resistance was evaluated with regards to the application of the steel in solid oxide fuel cells using a number of methods, including X-ray diffraction, scanning electron microscopy, confocal Raman imaging and area-specific resistance measurements.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 209-222"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigations of a micro-thermo-photovoltaic system fuelled with ammonia/hydrogen under extreme operational conditions","authors":"He Zhao,&nbsp;Dan Zhao,&nbsp;Yunpeng Su,&nbsp;Sid Becker,&nbsp;Yiheng Guan","doi":"10.1016/j.ijhydene.2024.10.410","DOIUrl":"10.1016/j.ijhydene.2024.10.410","url":null,"abstract":"<div><div>The present study is concerned with numerical investigations on the electrical power output, and NO emissions of an ammonia/hydrogen fuelled micro-thermo-photovoltaic (MTPV) system under extreme operational conditions. For this, three critical parameters are identified and examined. They include: (1) the inlet velocity, (2) the inlet equivalence ratio, and (3) the mole blending ratio of hydrogen. Increasing the inlet velocity markedly raises the electrical power output of the MTPV system. At lower inlet velocities, a higher background temperature helps reducing NO emissions (NO emissions at 2 m/s and 200K are 5.5% higher than at 350K), whereas at higher inlet velocities, lower background temperatures are more effective in reducing NO emissions (NO emissions at 12 m/s and 350K are 6% higher than at 200K). The electrical power output of the MTPV system is maximized, when the inlet equivalence ratio is set to 0.9, yielding a total power output of 15.2W. For optimizing energy efficiencies, an inlet equivalence ratio of 0.8 is preferred, with an energy efficiency of 6.3%. Blending ammonia with hydrogen significantly increases NO emissions (NO emissions at 200K with a hydrogen blend ratio of 0.5 are 26% higher than with the blending ratio of 0.1) and provides limited improvement in the energy output of the MTPV system (energy output at 200K with a hydrogen blend ratio of 0.5 is 10% higher than that with a blending ratio of 0.1, and the energy output at 300K with a hydrogen blend ratio of 0.5 is 7% higher than that at a blending ratio of 0.1).</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 364-375"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved property of block copolymer-based anion exchange membranes by attaching multi-ion flexible strings","authors":"Ao Nan Lai,&nbsp;Lin Ni,&nbsp;Wei Juan Wang,&nbsp;Qiu Xiang Wang,&nbsp;Peng Cheng Hu,&nbsp;Shu Feng Zhou","doi":"10.1016/j.ijhydene.2024.11.123","DOIUrl":"10.1016/j.ijhydene.2024.11.123","url":null,"abstract":"<div><div>To meet high conductivity and sufficient anti-swelling of anion exchange membranes (AEMs), a collaborative strategy of combining multi-ion flexible string and block backbone is adopted to construct membrane’s architecture. Then a series of adamantane-contained poly(arylether ketone nitrile)s block copolymers has been synthesized and grafted with multi-ion flexible strings to form hydrophilic domains. In addition, the hydrophobic segments with nitrile groups are aimed to enhance the entanglement between chains and limit swelling degrees of membranes. Along the steps, clear phase separation morphologies are formed for creating efficient ionic channels. The resulted AEMs exhibit improved conductivity and dimensional stability at low hydration levels, e.g. conductivity of 91.7–119.4 mS cm⁻¹, swelling ratio (SR) of 14.4%–19.5%, water uptake (WU) of 38.3%–57.9% and λ values of 13.4–15.7 at 80 °C. Furthermore, the AEMs prepared exhibit excellent mechanical properties and good thermal stability below 180 °C. However, further optimization is required for a better alkaline stability.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 331-340"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657009","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":"Probing ion substitution in NaAlO3-xHx perovskites for advanced hydrogen storage systems: A prediction through DFT","authors":"Sana Zafar ,&nbsp;I. Zeba ,&nbsp;S.S.A. Gillani","doi":"10.1016/j.ijhydene.2024.11.108","DOIUrl":"10.1016/j.ijhydene.2024.11.108","url":null,"abstract":"<div><div>The global community is currently grappling with two significant challenges: climate change and the depletion of non-renewable power sources. To address these issues, scientists are paying increased attention to hydrogen as a potential alternative energy carrier, as it is both ecologically favorable and has the potential to replace non-renewable energy sources. However, scientists face difficulties in storing and transporting hydrogen directly. Perovskite hydrides have gained considerable interest as they exhibit excellent ion exchangeability and high gravimetric hydrogen storage capacity. This study specifically examines the hydrogen storage capabilities of NaAlO_3-xH_x perovskite using the famous DFT-based CASTEP simulation code. The research reveals that after hydrogen was inserted into the pristine material, the material's cubic structure along with lattice parameters manifests variation. The study also reveals that the hydrogen-incorporated compositions were structurally and thermodynamically stable, with Born's mechanical stability criteria being fulfilled by all compositions. The ductile or brittle nature of the compounds varied with the amount of hydrogen inserted, as shown by Cauchy's pressure and Poisson's ratio. Additionally, the continuous insertion of hydrogen into the pristine material significantly impacted the electronic states, as demonstrated by the density of states and plots of band gap. After the complete insertion of hydrogen, the band gap fell from 5.86 eV to 0 eV, making the final compound metal, it also affects the material's optoelectronic properties. This research provides detailed insights into optical parameters such as absorption, reflectivity, refractive index, extinction coefficient, complex dielectric function, and energy loss function. The gravimetric storage capacity of the material increased from 0.32 wt% to 5.4 wt% after inserting 100% hydrogen into it. NaAlH₃ is determined to be an excellent material for hydrogen storage based on our conclusions.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 285-299"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657026","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":"Comparison of cost and performance between traditional and green processes for producing bimetallic carbide based oxygen reduction electrocatalysts","authors":"Zaoxue Yan ,&nbsp;Kailun Wang ,&nbsp;Wei Wei ,&nbsp;Xinhong Zhao ,&nbsp;Zhifeng Jiang ,&nbsp;Zhuofeng Hu ,&nbsp;Guisheng Zhu","doi":"10.1016/j.ijhydene.2024.11.101","DOIUrl":"10.1016/j.ijhydene.2024.11.101","url":null,"abstract":"<div><div>Chemical (ion exchange resin) and biomass (water hyacinth leaves) as carbon precursors are adopted to prepare two kinds of bimetallic carbide (Fe₂MoC)-based catalytic materials. It is found that, compared with the material that use ion-exchange resin as carbon precursor (N–Fe₂MoC-RG), the material that use water hyacinth as carbon precursor (N–Fe₂MoC-WHG) has more advantages in cost, environment protection, synthesis simplicity, and catalytic activity for oxygen reduction reaction (ORR). Therein, the N–Fe₂MoC-WHG as a cathode catalyst displays a half-wave potential of 0.905 V (vs. RHE) for catalyzing ORR in alkaline media, and gets a high peak power density of 1.52 W cm⁻² in alkaline electrolyte membrane fuel cell; moreover, the N–Fe₂MoC-WHG displays higher power-density retention or growth rate at lower relative humidity, higher back pressure, higher working temperature and higher catalyst loading, compared with the N–Fe₂MoC-RG. The N–Fe₂MoC-WHG is one of the most active precious metal-free catalysts reported so far, and its stability is very excellent.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 385-393"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657196","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":"Modeling and simulation of the structural, and optoelectronic properties of aluminum trihydride (β-AlH3) for hydrogen storage","authors":"Mounaim Bencheikh,&nbsp;Larbi El Farh","doi":"10.1016/j.ijhydene.2024.11.111","DOIUrl":"10.1016/j.ijhydene.2024.11.111","url":null,"abstract":"<div><div>Hydrogen is a promising clean energy source, but its storage poses challenges. In this research, we conducted an in-depth study of the structural and optoelectronic properties of the β-<span><math><mrow><msub><mtext>AlH</mtext><mn>3</mn></msub></mrow></math></span> phase as a potential material for hydrogen storage. Using the density functional theory (DFT)-based Wien2k code, we optimized the structure of β-<span><math><mrow><msub><mtext>AlH</mtext><mn>3</mn></msub></mrow></math></span>. Hydrogen storage properties show that β-<span><math><mrow><msub><mtext>AlH</mtext><mn>3</mn></msub></mrow></math></span> contains 10.1% hydrogen by weight, which is a significant amount. Electronic properties reveal that this material is a semiconductor with a wide indirect bandgap of 5.947 eV, obtained by the generalized gradient approximation with modified Becke-Johnson correction (GGA-mBJ). The optical response of β-<span><math><mrow><msub><mtext>AlH</mtext><mn>3</mn></msub></mrow></math></span> to photons with energies from 0 to 10 eV is also examined for a better understanding of this material. β-<span><math><mrow><msub><mtext>AlH</mtext><mn>3</mn></msub></mrow></math></span> exhibits a static dielectric permittivity value <span><math><mrow><msub><mi>ε</mi><mn>1</mn></msub><mrow><mo>(</mo><mi>ω</mi><mo>)</mo></mrow></mrow></math></span> of 2.1, indicative of its semiconducting nature. The optical conductivity <span><math><mrow><msub><mi>σ</mi><mn>1</mn></msub><mrow><mo>(</mo><mi>ω</mi><mo>)</mo></mrow></mrow></math></span> shows peaks at 7.25 eV and 8.5 eV, while the absorption coefficient α(ω) increases significantly above the band gap of 5.947 eV, with peaks at 7.2 eV and 9 eV. The refractive index n(ω) and extinction coefficient κ(ω) both display notable features at 7.2 eV and 9 eV, reflecting substantial electronic transitions and optical resonances.</div><div>This research is crucial to understanding how this material can meet the technological demands of hydrogen storage. The results provide valuable insights into the potential of β-AlH₃ within the future energy landscape, highlighting both advances and challenges in this promising field.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 223-231"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657025","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":"MOF incorporated photo-fermentation system with improved biohydrogen efficiency","authors":"Yinggang Jiao ,&nbsp;Yameng Li ,&nbsp;Yang Zhang ,&nbsp;Muhammad Adnan Sami Khan ,&nbsp;Fang Yin ,&nbsp;Shengnan Zhu ,&nbsp;Quanguo Zhang ,&nbsp;Pedram Fatehi ,&nbsp;Zhiping Zhang","doi":"10.1016/j.ijhydene.2024.11.132","DOIUrl":"10.1016/j.ijhydene.2024.11.132","url":null,"abstract":"<div><div>Catalyst addition has been considered an effective pathway to enhance biohydrogen yield in biochemical reaction processes. In this study, the metal-organic framework material (MOF-808) was selected to enhance the mechanism of photo-fermentation biohydrogen production (PFHP) of corn stover. The results showed that MOF-808 coagulated with bacteria (Proteobacteria) to form an efficient proton transport interface and improved the reducibility of the fermentation solution in the PFHP system. At 0.5 g/L MOF-808 dosage, the cumulative hydrogen yield was 84.59 mL/g TS, and the hydrogen production rate was 20.1 mL/h, which were 30.5% and 39.6% higher than those of the control group, respectively. The maximum energy recovery rate and light conversion efficiency were increased by 28.9% and 39.3%, respectively. In addition, MOF-808 significantly impacted the composition of the microbial community, fostering the production of hydrogen through acid metabolism. Even during the secondary cycle, it still maintained stable catalytic activity.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"94 ","pages":"Pages 376-384"},"PeriodicalIF":8.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657167","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":"Enhanced performance and recyclability of cobalt nanoparticles mesoporous Catalyst supported on mechanochemically prepared CoFe2O4–Co3O4 for sodium borohydride hydrolysis","authors":"Alireza Kourang Beheshti,&nbsp;Mehran Rezaei,&nbsp;Seyed Mehdi Alavi,&nbsp;Ehsan Akbari,&nbsp;Mohammad Varbar","doi":"10.1016/j.ijhydene.2024.11.019","DOIUrl":"10.1016/j.ijhydene.2024.11.019","url":null,"abstract":"<div><div>Sodium borohydride, recognized as a promising hydrogen carrier, has attracted significant attention for its hydrolysis process, which holds immense potential for industrialization. This process offers a viable alternative to methane steam reforming, a technology plagued by various operational challenges. This research focuses on developing Co/(CoFe₂O₄–Co₃O₄) catalysts with varying weight percentages to enhance the efficiency of this hydrogen generation process. To thoroughly characterize the synthesized catalysts, a comprehensive analysis was conducted using XRD, FT-IR, FE-SEM, TGA, and BET analytical techniques. The results revealed that the catalysts exhibited mesoporous structures across weight percentages ranging from 1 to 10, and their crystal network was determined to be face-centered cubic. XRD pattern analysis confirmed the successful synthesis of the desired catalyst with a high degree of purity. Using the Scherrer equation, the particle size of the catalyst was calculated to be between 30 and 40 nm. A cobalt loading of 7.5% on (CoFe₂O₄–Co₃O₄) resulted in optimal performance, with a hydrogen production rate of 1646.3 ml min⁻¹ g⁻¹ and an activation energy of 57.2 kJmol^-1. Reactor testing of the catalyst, employing a water displacement method, demonstrated a favorable hydrogen production rate and a high power output when compared to similar catalysts. These findings suggest practical applications for this catalyst in hydrogen generation systems.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"93 ","pages":"Pages 1156-1165"},"PeriodicalIF":8.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142650769","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}