Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.380
Dorothee Arlt, Marius Becker, Jens Wolling
This study uses a multi-method design to investigate the media's role in shaping Germans' attitudes toward green hydrogen. It combines an automatized content analysis of 7649 German newspaper articles published between July 2021 and June 2024 and a three-wave panel survey of the German population conducted between June 2023 and June 2024 with an initial sample of 2701 participants. The findings show that the intensity of media reporting on hydrogen was low compared to other energy-related topics. Nevertheless, participants' assessments of relative topic presence are rather accurate (rho: 0.50–0.80). A considerable number of participants were unable to position themselves toward the potential and challenges of hydrogen (23%–35%). Overall, the results indicate that media and communication tend to stabilize or change existing attitudes rather than contribute to the formation or loss of attitudes, leading to implications for the communication of relevant stakeholders.
{"title":"Stability, change, formation: Insights into the media's role in shaping attitudes toward green hydrogen in Germany","authors":"Dorothee Arlt, Marius Becker, Jens Wolling","doi":"10.1016/j.ijhydene.2024.11.380","DOIUrl":"10.1016/j.ijhydene.2024.11.380","url":null,"abstract":"<div><div>This study uses a multi-method design to investigate the media's role in shaping Germans' attitudes toward green hydrogen. It combines an automatized content analysis of 7649 German newspaper articles published between July 2021 and June 2024 and a three-wave panel survey of the German population conducted between June 2023 and June 2024 with an initial sample of 2701 participants. The findings show that the intensity of media reporting on hydrogen was low compared to other energy-related topics. Nevertheless, participants' assessments of relative topic presence are rather accurate (rho: 0.50–0.80). A considerable number of participants were unable to position themselves toward the potential and challenges of hydrogen (23%–35%). Overall, the results indicate that media and communication tend to stabilize or change existing attitudes rather than contribute to the formation or loss of attitudes, leading to implications for the communication of relevant stakeholders.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 328-337"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756861","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.444
Fawad Rahim Malik , Merika Chanthanumataporn
A techno-economic analysis (TEA) of a hybrid chicken litter gasification system combined with a phosphoric acid fuel cell (PAFC) model was simulated to address both renewable energy generation and waste management of broiler chicken farm waste in Thailand. The simulation model was developed and analyzed using Aspen Plus V.11 software. A small-scale gasification system integrated with a PAFC is proposed to meet the electrical demand of a typical chicken farm in the Northern Thailand region of Lamphun. In this study, gasifier temperature and equivalence ratio (ER) were considered as the main operating parameters. A thermodynamic analysis indicates that a gasifier temperature of 800 °C and an ER ratio of 0.2 is required to achieve hydrogen yield of 6.5% and cold gas efficiency (CGE) of 71%. Economic analysis suggests gasification + ICE is suitable for short-term profitability, while gasification + PAFC offers long-term profitability.
为解决泰国肉鸡养殖场废弃物的可再生能源发电和废弃物管理问题，对结合磷酸燃料电池（PAFC）模型的混合鸡窝气化系统进行了技术经济分析（TEA）。利用Aspen Plus V.11软件建立仿真模型并进行分析。一个小型气化系统集成了PAFC，以满足泰国北部兰埔地区一个典型养鸡场的电力需求。本研究以气化炉温度和等效比（ER）为主要运行参数。热力学分析表明，气化炉温度为800℃，ER比为0.2时，产氢率为6.5%，冷气效率（CGE）为71%。经济分析表明，气化+ ICE适合短期盈利，而气化+ PAFC适合长期盈利。
{"title":"Techno-economic analysis of broiler chicken farm waste in Thailand to produce power via integration of combined gasification and fuel cell systems","authors":"Fawad Rahim Malik , Merika Chanthanumataporn","doi":"10.1016/j.ijhydene.2024.11.444","DOIUrl":"10.1016/j.ijhydene.2024.11.444","url":null,"abstract":"<div><div>A techno-economic analysis (TEA) of a hybrid chicken litter gasification system combined with a phosphoric acid fuel cell (PAFC) model was simulated to address both renewable energy generation and waste management of broiler chicken farm waste in Thailand. The simulation model was developed and analyzed using Aspen Plus V.11 software. A small-scale gasification system integrated with a PAFC is proposed to meet the electrical demand of a typical chicken farm in the Northern Thailand region of Lamphun. In this study, gasifier temperature and equivalence ratio (ER) were considered as the main operating parameters. A thermodynamic analysis indicates that a gasifier temperature of 800 °C and an ER ratio of 0.2 is required to achieve hydrogen yield of 6.5% and cold gas efficiency (CGE) of 71%. Economic analysis suggests gasification + ICE is suitable for short-term profitability, while gasification + PAFC offers long-term profitability.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 279-290"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756862","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}
This research reports the results of an experimental and numerical analysis of the La0.9Ce0.1Ni5 alloy's hydrogen absorption and desorption isotherms at three distinct temperatures (T = 313 K, 333 K, and 353 K). We first determined the morphological and structural properties, as well as the hydrogen storage isotherms, of the intermetallic La0.9Ce0.1Ni5 experimentally. The experimental isotherms were then compared to a mathematical model based on statistical physical theory. Due to the good agreement between the experimental isotherms and the proposed model, the insertion and release of hydrogen atoms (nα, nβ), geometric densities of receptor sites (Nαm, Nβm), and absorption-desorption energies (Pα, Pβ) were determined. Moreover, thermodynamic functions like enthalpy, entropy, Gibbs free energy, and internal energy were calculated using these parameters. The findings demonstrated that the intermetallic compound's CaCu5 structure promotes the formation of stable metal hydrides through attractive interactions, ensuring that hydrogen atoms are securely trapped in the metal lattice, thereby enhancing the material's hydrogen storage capacity.
{"title":"Theoretical modeling of experimental isotherms for hydrogen storage in La0.9Ce0.1Ni5 alloy","authors":"Briki Chaker , Belkhiria Sihem , Mohamed Houcine Dhaou , Essid Manel , Nasri Saber , Dmitry Dunikov , Ivan Romanov , Alexey Kazakov , A. Alyousef Haifa , B.M. Alotaibi , Al-Harbi Nuha , Jemni Abdelmajid","doi":"10.1016/j.ijhydene.2024.11.146","DOIUrl":"10.1016/j.ijhydene.2024.11.146","url":null,"abstract":"<div><div>This research reports the results of an experimental and numerical analysis of the La<sub>0.9</sub>Ce<sub>0.1</sub>Ni<sub>5</sub> alloy's hydrogen absorption and desorption isotherms at three distinct temperatures (T = 313 K, 333 K, and 353 K). We first determined the morphological and structural properties, as well as the hydrogen storage isotherms, of the intermetallic La<sub>0.9</sub>Ce<sub>0.1</sub>Ni<sub>5</sub> experimentally. The experimental isotherms were then compared to a mathematical model based on statistical physical theory. Due to the good agreement between the experimental isotherms and the proposed model, the insertion and release of hydrogen atoms (n<sub>α</sub>, n<sub>β</sub>), geometric densities of receptor sites (N<sub>αm</sub>, N<sub>βm</sub>), and absorption-desorption energies (P<sub>α</sub>, P<sub>β</sub>) were determined. Moreover, thermodynamic functions like enthalpy, entropy, Gibbs free energy, and internal energy were calculated using these parameters. The findings demonstrated that the intermetallic compound's CaCu<sub>5</sub> structure promotes the formation of stable metal hydrides through attractive interactions, ensuring that hydrogen atoms are securely trapped in the metal lattice, thereby enhancing the material's hydrogen storage capacity.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1251-1261"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744835","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.370
Daxue Fu , Shangli Chen , Jiazhuang Shi , Qunzhao Xu , Jiuhua Wu
The development of efficient and competitive acidic oxygen evolution reaction (OER) electrocatalysts is a major challenge for hydrogen production by water electrolysis. In this paper, a novel strategy was proposed for preparing OER electrode material, by which a polyphenol (ppl) film was plated on a carbon black-coated nickel foam substrate. The electrode Ni/C-ppl-30-0.1-0.1 shows excellent catalytic activity and stability. The overpotential at 10 mA cm−2 is 350 mV, which is lower than some of the reported non-precious metal materials. Structural and electrocatalytic performance analyses show that the performance of the electrode benefits from the surface defects of the ppl film and the abundant oxygen-containing functional group, which provide numerous catalytic centers for OER. This work provides an attempt to enhance the anodic stability in acidic media by conductive polymer film.
高效、有竞争力的酸性析氧反应（OER）电催化剂的开发是水电解制氢的主要挑战。本文提出了一种制备OER电极材料的新策略，即在炭黑涂层的泡沫镍衬底上镀一层多酚（ppl）薄膜。Ni/C-ppl-30-0.1-0.1电极表现出优异的催化活性和稳定性。在10 mA cm−2下的过电位为350 mV，低于一些报道的非贵金属材料。结构和电催化性能分析表明，ppl膜的表面缺陷和丰富的含氧官能团为OER提供了大量的催化中心，有利于电极的性能。本研究为利用导电聚合物薄膜提高其在酸性介质中的阳极稳定性提供了一种尝试。
{"title":"Preparation and performance of nickel/C based acidic oxygen evolution anode with polyphenol film","authors":"Daxue Fu , Shangli Chen , Jiazhuang Shi , Qunzhao Xu , Jiuhua Wu","doi":"10.1016/j.ijhydene.2024.11.370","DOIUrl":"10.1016/j.ijhydene.2024.11.370","url":null,"abstract":"<div><div>The development of efficient and competitive acidic oxygen evolution reaction (OER) electrocatalysts is a major challenge for hydrogen production by water electrolysis. In this paper, a novel strategy was proposed for preparing OER electrode material, by which a polyphenol (ppl) film was plated on a carbon black-coated nickel foam substrate. The electrode Ni/C-ppl-30-0.1-0.1 shows excellent catalytic activity and stability. The overpotential at 10 mA cm<sup>−2</sup> is 350 mV, which is lower than some of the reported non-precious metal materials. Structural and electrocatalytic performance analyses show that the performance of the electrode benefits from the surface defects of the ppl film and the abundant oxygen-containing functional group, which provide numerous catalytic centers for OER. This work provides an attempt to enhance the anodic stability in acidic media by conductive polymer film.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 270-278"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747331","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.439
Miao Cao , Yulang Qiu , Man Yang , Yanyan Zhang , Qiange Li , Shishen Zhang , Peng Li , Qi Sui
Construction of a proper electron donor-acceptor (D-A) microenvironment through introducing a suitable chemical moiety is an effective strategy to facilitate photogenerated charge transfer in a cascade step actively, which can boost the corresponding photocatalytic performance significantly. Herein, a series of naphthalenediimide (NDIy), possessing unique electron-deficient aromatic imides, were introduced to prepare D-A structured g-C3N4 (CN) derivative hybrid photocatalysts for photocatalytic hydrogen evolution (PHE) from water splitting. Remarkably, the modification with NDIy all significantly improved the PHE performance, in which 1%NDINH2@CN exhibits the best photocatalytic activity (14.57 mmolꞏg−1ꞏh−1), exceeding 5.6 times over the unmodified pure CN under the same conditions. The enhanced PHE activity is highly associated with the interfacial D-A interactions between NDIy and CN, which also lays the foundation for the further rational design of analogs toward various types of photocatalytic reactions.
{"title":"Electron-deficient naphthalenediimides modified g-C3N4 for boosting photocatalytic hydrogen evolution in freshwater and seawater","authors":"Miao Cao , Yulang Qiu , Man Yang , Yanyan Zhang , Qiange Li , Shishen Zhang , Peng Li , Qi Sui","doi":"10.1016/j.ijhydene.2024.11.439","DOIUrl":"10.1016/j.ijhydene.2024.11.439","url":null,"abstract":"<div><div>Construction of a proper electron donor-acceptor (D-A) microenvironment through introducing a suitable chemical moiety is an effective strategy to facilitate photogenerated charge transfer in a cascade step actively, which can boost the corresponding photocatalytic performance significantly. Herein, a series of naphthalenediimide (<strong>NDI</strong><sub><strong>y</strong></sub>), possessing unique electron-deficient aromatic imides, were introduced to prepare D-A structured <em>g</em>-C<sub>3</sub>N<sub>4</sub> (<strong>CN</strong>) derivative hybrid photocatalysts for photocatalytic hydrogen evolution (PHE) from water splitting. Remarkably, the modification with <strong>NDI</strong><sub><strong>y</strong></sub> all significantly improved the PHE performance, in which <strong>1%NDI</strong><sub><strong>NH2</strong></sub><strong>@CN</strong> exhibits the best photocatalytic activity (14.57 mmolꞏg<sup>−1</sup>ꞏh<sup>−1</sup>), exceeding 5.6 times over the unmodified pure <strong>CN</strong> under the same conditions. The enhanced PHE activity is highly associated with the interfacial D-A interactions between <strong>NDI</strong><sub><strong>y</strong></sub> and <strong>CN</strong>, which also lays the foundation for the further rational design of analogs toward various types of photocatalytic reactions.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 227-235"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747510","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.447
Li Ma , Changchen Liu , Jiulin Han , Ange Wen , Baoqing Liu , Jinyang Zheng
Carbon fiber-reinforced composite hydrogen storage cylinder is a key component used in hydrogen fuel cell electric vehicles. However, some micro defects such as voids and delamination are inevitable during the manufacturing process. An efficient detection method for manufacturing defects is still lacking at present. In this work, industrial computerized tomography (CT) scanning was carried out and a large number of micro delamination with scattered sizes and random locations were found in the filament winding layer. Shearography technique based on digital speckle pattern interferometry (DSPI) was used to measure the surface deformation of the cylinders. It was found that the "butterfly-shaped” interference fringes representing the anomalous responses from defects can be significantly observed at the pressure difference of 0.62%–0.69% working pressure. Also, the crack was found originated from the delamination defect with the most significant “butterfly-shaped” fringes, which leads to a large area of interlaminar destruction during the hydraulic bursting test.
{"title":"Delamination defects in composite hydrogen storage cylinders: CT scanning and shearography measurement","authors":"Li Ma , Changchen Liu , Jiulin Han , Ange Wen , Baoqing Liu , Jinyang Zheng","doi":"10.1016/j.ijhydene.2024.11.447","DOIUrl":"10.1016/j.ijhydene.2024.11.447","url":null,"abstract":"<div><div>Carbon fiber-reinforced composite hydrogen storage cylinder is a key component used in hydrogen fuel cell electric vehicles. However, some micro defects such as voids and delamination are inevitable during the manufacturing process. An efficient detection method for manufacturing defects is still lacking at present. In this work, industrial computerized tomography (CT) scanning was carried out and a large number of micro delamination with scattered sizes and random locations were found in the filament winding layer. Shearography technique based on digital speckle pattern interferometry (DSPI) was used to measure the surface deformation of the cylinders. It was found that the \"butterfly-shaped” interference fringes representing the anomalous responses from defects can be significantly observed at the pressure difference of 0.62%–0.69% working pressure. Also, the crack was found originated from the delamination defect with the most significant “butterfly-shaped” fringes, which leads to a large area of interlaminar destruction during the hydraulic bursting test.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 140-149"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747407","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.425
Bing Mei , Ali B.M. Ali , Mortatha Al-Yasiri , Anjan Kumar , Pawan Sharma , Mamata Chahar , M. Ravi Kumar , Saiful Islam , Devendra Pratap Rao , Shaik Mohammad Irshad
Developing High-performance, low-cost, and non-noble-metal hydrogen evolution reaction (HER) electrocatalysts are one of the particularly significant elements to triumph over the slow kinetics of water dissociation. However, utilizing non-noble metal electrocatalysts at large-scale applications remains a significant challenge. This work informs the fabrication of porous amorphous NiFeP nanostructures on crystalline NiMoP/NF nanoflakes morphology via straightforward two-step electrodeposition and hydrothermal processes as a binder-free 3D hetero-structured composite catalyst for reliable HER. Based on experimental characterizations and density functional theory (DFT) calculations, the optimized NiFeP@NiMoP@NF electrocatalyst exhibits a favorable amorphous/crystalline morphology and an intrinsic metallic phase. This structure facilitates efficient charge transport and exposes abundant active sites with strong electronic interactions between NiFeP and NiMoP, significantly optimizing the adsorption and desorption energy of H2O and thus leading to easy adsorption of H and OH− on NiFeP@NiMoP and promoting the bubble release, finally improving electrocatalytic HER performance in alkaline media (only need an overpotential of 40 mV to conduct a current density of 10 mA cm−2). The rational and affordable developing technique in this study not only implies the importance of interface engineering in catalyst construction but also opens a new route for synthesizing high-efficiency Ni-based electrocatalysts for a variety of water electrolysis applications.
开发高性能、低成本和非贵金属析氢反应（HER）电催化剂是克服水解离缓慢动力学的一个特别重要的因素。然而，在大规模应用中利用非贵金属电催化剂仍然是一个重大挑战。本研究通过直接的两步电沉积和水热工艺，在NiMoP/NF纳米片形貌上制备了多孔非晶NiFeP纳米结构，作为可靠的HER的无粘结剂3D异质结构复合催化剂。基于实验表征和密度泛函理论（DFT）计算，优化后的NiFeP@NiMoP@NF电催化剂具有良好的非晶/晶形态和本征金属相。这种结构有利于有效的电荷传输，并暴露出丰富的NiFeP和NiMoP之间具有强电子相互作用的活性位点，显著优化了H2O的吸附和解吸能，从而使H和OH -在NiFeP@NiMoP上易于吸附，促进气泡释放，最终提高了碱性介质中电催化HER的性能（只需要40 mV的过电位就可以传导10 mA cm - 2的电流密度）。本研究中合理、经济的开发技术不仅表明了界面工程在催化剂构建中的重要性，而且为合成各种水电解应用的高效镍基电催化剂开辟了新的途径。
{"title":"In-situ engineering of 3D amorphous/crystalline NiFeP/NiMoP/NF composite for improved hydrogen evolution","authors":"Bing Mei , Ali B.M. Ali , Mortatha Al-Yasiri , Anjan Kumar , Pawan Sharma , Mamata Chahar , M. Ravi Kumar , Saiful Islam , Devendra Pratap Rao , Shaik Mohammad Irshad","doi":"10.1016/j.ijhydene.2024.11.425","DOIUrl":"10.1016/j.ijhydene.2024.11.425","url":null,"abstract":"<div><div>Developing High-performance, low-cost, and non-noble-metal hydrogen evolution reaction (HER) electrocatalysts are one of the particularly significant elements to triumph over the slow kinetics of water dissociation. However, utilizing non-noble metal electrocatalysts at large-scale applications remains a significant challenge. This work informs the fabrication of porous amorphous NiFeP nanostructures on crystalline NiMoP/NF nanoflakes morphology via straightforward two-step electrodeposition and hydrothermal processes as a binder-free 3D hetero-structured composite catalyst for reliable HER. Based on experimental characterizations and density functional theory (DFT) calculations, the optimized NiFeP@NiMoP@NF electrocatalyst exhibits a favorable amorphous/crystalline morphology and an intrinsic metallic phase. This structure facilitates efficient charge transport and exposes abundant active sites with strong electronic interactions between NiFeP and NiMoP, significantly optimizing the adsorption and desorption energy of H<sub>2</sub>O and thus leading to easy adsorption of H and OH<sup>−</sup> on NiFeP@NiMoP and promoting the bubble release, finally improving electrocatalytic HER performance in alkaline media (only need an overpotential of 40 mV to conduct a current density of 10 mA cm<sup>−2</sup>). The rational and affordable developing technique in this study not only implies the importance of interface engineering in catalyst construction but also opens a new route for synthesizing high-efficiency Ni-based electrocatalysts for a variety of water electrolysis applications.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 130-139"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747399","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}
As the global demand for clean energy continues to rise, hydrogen, as a promising clean energy carrier, is increasingly becoming the focus of international attention. This paper aims to present a comprehensive overview of hydrogen preparation strategies, recent advances in storage and transportation technologies, and the extensive application of hydrogen in many fields. First, we explored the current mainstream hydrogen preparation paths, including but not limited to hydroelectrolysis (decomposition of water molecules using renewable energy power); gas steam reforming (traditional but efficient hydrogen production methods requiring carbon emission management); biomass gasification and coal gasification (based on innovative utilisation of renewable and fossil resources); and hydrolysis hydrogen production (advanced cutting-edge technology directly using solar energy). Each method shows its unique advantages and potential application scenarios. Subsequently, we have focused on hydrogen storage technology, a key area that is undergoing rapid technological innovation and widespread application. Hydrogen storage technology, with its energy storage and release characteristics without carbon dioxide emissions, is regarded as an important bridge to promote the transformation of energy structure and achieve the sustainable development goals. This paper not only expounds the basic principle of hydrogen storage technology and historical evolution, also analyzed in detail in the compressed hydrogen, liquid hydrogen and solid hydrogen storage form of concrete application examples, at the same time, the selection of hydrogen storage materials, cost efficiency, safety performance and deeply analyzes the core challenges, and the future development trend and potential solutions. In terms of hydrogen transport, this paper will introduce three common transport modes: gas transport, liquid transport and hydrogen carrier transport. Further, we turned to the diversified utilisation technology of hydrogen, focusing on the breakthroughs of fuel cell technology in energy conversion efficiency, Hydrogen combustionand, thow hydrogen energy can help to achieve low-carbon travel in the transportation field. The integration and application of these technologies not only broaden the use of hydrogen energy, but also lay a solid foundation for them to occupy a core position in the clean energy system. To sum up, through a detailed review, this paper draws a panorama of hydrogen production, storage, transportation and use, revealing the key role and huge potential of hydrogen energy in the clean energy transition. We look forward to that this paper will provide valuable reference and inspiration for researchers, engineers and policy makers, jointly promote the continuous progress and wide application of hydrogen technology, and contribute to the construction of a green and low-carbon future.
{"title":"Reshaping the energy landscape: Explorations and strategic perspectives on hydrogen energy preparation, efficient storage, safe transportation and wide applications","authors":"Kaiyou Shu, Bin Guan, Zhongqi Zhuang, Junyan Chen, Lei Zhu, Zeren Ma, Xuehan Hu, Chenyu Zhu, Sikai Zhao, Hongtao Dang, Tiankui Zhu, Zhen Huang","doi":"10.1016/j.ijhydene.2024.11.110","DOIUrl":"10.1016/j.ijhydene.2024.11.110","url":null,"abstract":"<div><div>As the global demand for clean energy continues to rise, hydrogen, as a promising clean energy carrier, is increasingly becoming the focus of international attention. This paper aims to present a comprehensive overview of hydrogen preparation strategies, recent advances in storage and transportation technologies, and the extensive application of hydrogen in many fields. First, we explored the current mainstream hydrogen preparation paths, including but not limited to hydroelectrolysis (decomposition of water molecules using renewable energy power); gas steam reforming (traditional but efficient hydrogen production methods requiring carbon emission management); biomass gasification and coal gasification (based on innovative utilisation of renewable and fossil resources); and hydrolysis hydrogen production (advanced cutting-edge technology directly using solar energy). Each method shows its unique advantages and potential application scenarios. Subsequently, we have focused on hydrogen storage technology, a key area that is undergoing rapid technological innovation and widespread application. Hydrogen storage technology, with its energy storage and release characteristics without carbon dioxide emissions, is regarded as an important bridge to promote the transformation of energy structure and achieve the sustainable development goals. This paper not only expounds the basic principle of hydrogen storage technology and historical evolution, also analyzed in detail in the compressed hydrogen, liquid hydrogen and solid hydrogen storage form of concrete application examples, at the same time, the selection of hydrogen storage materials, cost efficiency, safety performance and deeply analyzes the core challenges, and the future development trend and potential solutions. In terms of hydrogen transport, this paper will introduce three common transport modes: gas transport, liquid transport and hydrogen carrier transport. Further, we turned to the diversified utilisation technology of hydrogen, focusing on the breakthroughs of fuel cell technology in energy conversion efficiency, Hydrogen combustionand, thow hydrogen energy can help to achieve low-carbon travel in the transportation field. The integration and application of these technologies not only broaden the use of hydrogen energy, but also lay a solid foundation for them to occupy a core position in the clean energy system. To sum up, through a detailed review, this paper draws a panorama of hydrogen production, storage, transportation and use, revealing the key role and huge potential of hydrogen energy in the clean energy transition. We look forward to that this paper will provide valuable reference and inspiration for researchers, engineers and policy makers, jointly promote the continuous progress and wide application of hydrogen technology, and contribute to the construction of a green and low-carbon future.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 160-213"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747406","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}
Pub Date : 2024-11-30DOI: 10.1016/j.ijhydene.2024.11.404
Dongchen Shen , Zhilu Liu , Wei Li , Song Li , Zhengkai Tu
UiO-66 as one of the known metal-organic frameworks (MOFs) has been recognized as highly promising dopants for enhancing the proton conductivity of proton exchange membrane (PEM) owing to the large pore volume and structure tunability. Despite the numerous experimental reports on MOF-doped PEMs, their increased proton conductivity is commonly ascribed to enhanced water uptake. The underlying mechanisms from a microscopic perspective remain elusive. Therefore, this work explores the microstructure and water diffusion dynamics within composite membranes to decipher their mechanisms involved in proton conductivity using molecular dynamics (MD) simulations. Four types of composite membranes based on two representative MOFs i.e. UiO-66 and UiO-66-NH2 and two PEMs including Nafion and Dow, respectively, were taken into account. It is revealed that the UiO-66-NH2 doped Nafion composite membrane exhibits the highest water uptake among the four composite membranes resulting from the super hydrophilicity of UiO-66-NH2. Besides, the more concentrated distribution of sulfonic groups near the water-PEM interface and the higher interface roughness of UiO-66-NH2 doped Nafion lead to more water molecules surrounding its sulfonic groups that are favorable for the proton dissociation from sulfonic groups. Furthermore, the increased water channel connectivity of MOF-doped membranes that promotes proton transport through water via the Grotthuss mechanism demonstrates one of the mechanisms for increased proton conductivity. On the other hand, although the reduced lifetime of the hydrogen bond network and the enhanced water diffusion coefficient within MOF-doped membranes manifest the favorable proton transfer via the Vehicle mechanism. Overall, UiO-66-NH2 doped Nafion membranes exhibiting the highest water channel connectivity and water diffusion coefficients demonstrate the greatest potential of UiO-66-NH2 doping in advancing the proton conductivity. These findings provided microscopic insights into understanding the improved proton conductivity mechanism of MOF doped PEMs, and the approaches developed in this work may be extended to other composite membranes.
{"title":"Microscopic insights into UiO-66@proton exchange composite membrane by molecular dynamics simulation","authors":"Dongchen Shen , Zhilu Liu , Wei Li , Song Li , Zhengkai Tu","doi":"10.1016/j.ijhydene.2024.11.404","DOIUrl":"10.1016/j.ijhydene.2024.11.404","url":null,"abstract":"<div><div>UiO-66 as one of the known metal-organic frameworks (MOFs) has been recognized as highly promising dopants for enhancing the proton conductivity of proton exchange membrane (PEM) owing to the large pore volume and structure tunability. Despite the numerous experimental reports on MOF-doped PEMs, their increased proton conductivity is commonly ascribed to enhanced water uptake. The underlying mechanisms from a microscopic perspective remain elusive. Therefore, this work explores the microstructure and water diffusion dynamics within composite membranes to decipher their mechanisms involved in proton conductivity using molecular dynamics (MD) simulations. Four types of composite membranes based on two representative MOFs i.e. UiO-66 and UiO-66-NH<sub>2</sub> and two PEMs including Nafion and Dow, respectively, were taken into account. It is revealed that the UiO-66-NH<sub>2</sub> doped Nafion composite membrane exhibits the highest water uptake among the four composite membranes resulting from the super hydrophilicity of UiO-66-NH<sub>2</sub>. Besides, the more concentrated distribution of sulfonic groups near the water-PEM interface and the higher interface roughness of UiO-66-NH<sub>2</sub> doped Nafion lead to more water molecules surrounding its sulfonic groups that are favorable for the proton dissociation from sulfonic groups. Furthermore, the increased water channel connectivity of MOF-doped membranes that promotes proton transport through water via the Grotthuss mechanism demonstrates one of the mechanisms for increased proton conductivity. On the other hand, although the reduced lifetime of the hydrogen bond network and the enhanced water diffusion coefficient within MOF-doped membranes manifest the favorable proton transfer via the Vehicle mechanism. Overall, UiO-66-NH<sub>2</sub> doped Nafion membranes exhibiting the highest water channel connectivity and water diffusion coefficients demonstrate the greatest potential of UiO-66-NH<sub>2</sub> doping in advancing the proton conductivity. These findings provided microscopic insights into understanding the improved proton conductivity mechanism of MOF doped PEMs, and the approaches developed in this work may be extended to other composite membranes.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"97 ","pages":"Pages 236-246"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747324","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}
Computational fluid dynamics simulations were utilized to investigate the steam methane reforming process with the aim to improve its efficiency. Key parameters examined for their impact on process performance included surface heat flux (73–108 kW/m2), tube length (1–16 m), steam-to-carbon ratio (1.4–4), and flow rate (0.22–0.38 kg/s). To analyze the simultaneous effects of these variables while reducing computational costs, Deep Neural Networks (DNN) were employed. An optimized DNN was designed to achieve acceptable performance, featuring an input layer with four neurons that represent reformer length, flow rate, heat flux, and steam-to-carbon ratio. The network includes four hidden layers with 32, 16, 8, and 8 neurons respectively, and concludes with an output layer comprising seven neurons for residual methane, water vapor, produced hydrogen, carbon dioxide, carbon monoxide, wall temperature, and gas outlet temperature. The results indicated that the proposed model achieved high accuracy, exceeding 99%, in predicting both training and test data. Following the DNN modeling, an optimization algorithm based on the random search method was developed. This algorithm searches a wide range of parameters to identify the optimal conditions for simultaneously maximizing hydrogen production and minimizing reformer length.
{"title":"Advanced modelling and optimization of steam methane reforming: From CFD simulation to machine learning - Driven optimization","authors":"Azadeh Jafarizadeh , Masoud Panjepour , Mohsen Davazdah Emami","doi":"10.1016/j.ijhydene.2024.11.352","DOIUrl":"10.1016/j.ijhydene.2024.11.352","url":null,"abstract":"<div><div>Computational fluid dynamics simulations were utilized to investigate the steam methane reforming process with the aim to improve its efficiency. Key parameters examined for their impact on process performance included surface heat flux (73–108 kW/m<sup>2</sup>), tube length (1–16 m), steam-to-carbon ratio (1.4–4), and flow rate (0.22–0.38 kg/s). To analyze the simultaneous effects of these variables while reducing computational costs, Deep Neural Networks (DNN) were employed. An optimized DNN was designed to achieve acceptable performance, featuring an input layer with four neurons that represent reformer length, flow rate, heat flux, and steam-to-carbon ratio. The network includes four hidden layers with 32, 16, 8, and 8 neurons respectively, and concludes with an output layer comprising seven neurons for residual methane, water vapor, produced hydrogen, carbon dioxide, carbon monoxide, wall temperature, and gas outlet temperature. The results indicated that the proposed model achieved high accuracy, exceeding 99%, in predicting both training and test data. Following the DNN modeling, an optimization algorithm based on the random search method was developed. This algorithm searches a wide range of parameters to identify the optimal conditions for simultaneously maximizing hydrogen production and minimizing reformer length.</div></div>","PeriodicalId":337,"journal":{"name":"International Journal of Hydrogen Energy","volume":"96 ","pages":"Pages 1262-1280"},"PeriodicalIF":8.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757588","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号