Fuel Cells最新文献

{"title":"Tailoring the solid oxide fuel cell anode support composition and microstructure for low-temperature applications","authors":"Sajad Vafaeenezhad,&nbsp;Amir Reza Hanifi,&nbsp;Mark Cuglietta,&nbsp;Mohtada Sadrzadeh,&nbsp;Partha Sarkar,&nbsp;Thomas H. Etsell","doi":"10.1002/fuce.202200069","DOIUrl":"10.1002/fuce.202200069","url":null,"abstract":"<p>In this research, the performance of a tubular fuel cell based on a nickel oxide–yttria-stabilized zirconia (Ni-YSZ) anode support containing 90 wt% NiO ≈ 82 vol.% of Ni (Ni82) is compared with a cell containing the conventional Ni-YSZ support with 50 vol.% Ni. A Ni-YSZ buffer layer with a tailored microstructure was added to the Ni82 support layer to provide intermediate porosity and to reduce the thermal expansion mismatch with the anode functional layer. Both cells were tested using infiltrated Nd₂NiO_4+δ cathodes. High peak power densities of 790 and 478 mW/cm² were achieved at 600 and 550°C, respectively, for the Ni82 cell which was 25% and 87% higher than the performances for the conventional cell at respective temperatures. In addition, no degradation was found during four redox cycles at 550°C, making this support an attractive candidate for low-temperature solid oxide fuel cell applications.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47024320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fuel Cells in 2023: Highlights and transitions","authors":"","doi":"10.1002/fuce.2023701012","DOIUrl":"10.1002/fuce.2023701012","url":null,"abstract":"<p>Welcome to the first issue of Fuel Cells in 2023. This is shaping up to be an exciting year for the journal! Before we discuss our plans further and share some exciting news, we'd like to look back at some highlights from the previous year.</p><p>The final issue of the year was a Special Issue, covering the 25th edition of the European Electrolyser &amp; Fuelcell Forum (2021) in Lucerne, Switzerland. Figure 1 shows the front cover of this issue. That this meeting took place at all, given the disruptions caused to everyday life by the COVID19 pandemic, was a highlight in itself! As the guest editorial described, due to these disruptions the meeting was held—successfully—as a fully virtual event. From the 157 papers presented at the event, seven were selected for publication in the issue. The subjects covered in these published papers included visualization inside proton exchange membranes, catalyst degradation, and fuel cells for mobile applications. Other subjects discussed in the issue include the effects of accelerated durability testing on polymer electrolyte membranes, hydraulic single-cell compression testing, the integration of water electrolyzers into renewable energy sources, and an optimal sustainable fuel cell stack. We are extremely grateful to the organizers of this conference and the guest editors of the special issue, both for their collaboration with Fuel Cells and for ensuring this meeting took place despite the challenges involved.</p><p>Of course, there was no shortage of excellent content in the other issues of 2022. A review of energy management in hybrid fuel cell systems was published in issue 4, while research on lanthanum nickelate as an oxygen electrode in electrolysis cells and work on dual-region mass transport in proton exchange membranes were among the primary research highlights published, read, and cited in 2022. Naturally, work published in previous years is also still being read and cited too; see Table 1 for the top 10 most accessed articles, evergreen and newly published, from January to December 2022. The appeal of the articles published in the journal was clearly seen with the publication of the latest Journal Citation Reports in June. Fuel Cells earned an Impact Factor of 2.9, an increase of nearly 24% and a great result for the journal. Without the authors, reviewers, and readers who have supported the journal in the past year and beyond, none of this success would be possible. Thank you all so much!</p><p>Lastly, as promised, we have some news to share, both sad and exciting. To begin, our long-standing Editor-in-Chief, Professor Ulrich Stimming, will step down later this year. We are of course sad to see him go, but he goes with our great gratitude and respect, and we are pleased to announce that he will continue to be involved with the journal as the Founding Editor. We are also pleased to announce that Professor Eileen Yu of Loughborough University, UK, will step up from the Editorial Board to become ","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/fuce.2023701012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43731412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Cover Fuel Cells 1/2023","authors":"","doi":"10.1002/fuce.2023701011","DOIUrl":"https://doi.org/10.1002/fuce.2023701011","url":null,"abstract":"<p><i>Fuel Cells – From Fundamentals to Systems</i> publishes on all aspects of fuel cells, ranging from their molecular basis including theory and with molecular processes at catalyst surfaces and microscopic processes in membranes to their application in systems such as power plants, road vehicles and power sources in portables. It includes electrochemical energy technology as in energy conversion and storage with batteries, supercapacitors and electrolytic processes. <i>Fuel Cells</i> is a platform for scientific exchange in a diverse interdisciplinary field. All related work in chemistry, physics, materials science, chemical engineering, electrical engineering, and mechanical engineering is included.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/fuce.2023701011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50142440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Effect of membrane deposition methods on the performance of membrane electrode assemblies","authors":"Yijing Xing,&nbsp;Lei Liu,&nbsp;Zhuoqun Li,&nbsp;Yifan Li,&nbsp;Zhiyong Fu,&nbsp;Haibin Li","doi":"10.1002/fuce.202200190","DOIUrl":"10.1002/fuce.202200190","url":null,"abstract":"The performance of proton exchange membrane fuel cells (PEMFCs) is closely related to the preparation process of the membrane electrode assemblies (MEAs). The direct membrane deposition approach can achieve excellent interfacial connection between functional layer, as well as simplifying the MEA manufacturing process. Nevertheless, it has been recognized that for this approach, the permeation of the electrolyte solution into the catalyst layer is a challenge, and it is associated with the deposition method. In this study, three MEAs are prepared by spraying, blade coating, and a combination of the two. The effect of the electrolyte solution deposition methods on the properties of the MEAs is analyzed. The MEA prepared using the combination of spraying and blade coating delivers the highest performance of up to 0.618 W cm−2 (80°C with H2/air conditions at normal pressure). In this method, the spraying layer can alleviate the negative effect of cracks on the gas diffusion electrode surface, and the blade‐coating layer can improve the membrane uniformity. The MEA prepared by this method exhibits excellent cell performance compared to the traditional catalyst coated membrane type MEA, particularly in low‐humidity conditions. This work provides guidance for the preparation of high‐performance MEAs for PEMFCs.","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41800898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical aging of sealing gasket of proton exchange membrane fuel cell","authors":"Wenbin Xu,&nbsp;Xu Zhang","doi":"10.1002/fuce.202200077","DOIUrl":"10.1002/fuce.202200077","url":null,"abstract":"<p>As the key sealing part of proton exchange membrane fuel cell (PEMFC), the gasket is easily damaged in acidic solution and wet air for a long time in PEMFC, resulting in unsafe and unstable operation of PEMFC. In this paper, the regular solution (RS) and accelerated durability test (ADT) solution in PEMFC were prepared to study the aging damage process of silicone rubber gasket, and the attenuated total reflection Fourier transform infrared spectrometer (ATR-FTIR) was used to analyze the surface changes of gaskets soaked in solutions. The results showed that the weight loss of samples increased with the soaking time in both ADT solution and RS solution, and the damage of samples in ADT solution was faster and more serious than that in RS solution. Meanwhile, the microstructure diagram also indicated that the damage of the samples in ADT solution was more serious than that in the RS solution. The ATR-FTIR analysis results showed that the intensity of characteristic wave peaks of samples at 706, 787, 867, 1006, 1071, 1260, and 2961cm⁻¹ in ADT solution decreased faster than that in RS solution, which was consistent with the results of weight analysis and microstructure analysis.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45877857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical impedance spectroscopy studies of the buffered and non-buffered microbial fuel cell","authors":"Fatemeh Nourbakhsh PhD,&nbsp;Mohsen Mohsennia PhD,&nbsp;Mohammad Pazouki PhD","doi":"10.1002/fuce.202200088","DOIUrl":"10.1002/fuce.202200088","url":null,"abstract":"<p>The positive effect of buffers to maintain a sui pH for microorganism growth and increase the electrolyte conductivity in microbial fuel cells (MFCs) encourages more studies on the development of new buffer solutions. The effect of types of biological buffers such as phosphate, tris, succinate, and maleate on power production in dual chamber MFC inoculated by <i>saccharomyces cerevisiae</i> has been examined. Electrochemical impedance spectroscopy has been used for evaluating the performance of the buffered and non-buffered MFC systems. Considering the important impact of buffer type on the resistance of ion migration within the electrolyte and electron transport resistance of the cell components, the internal resistance of the MFC with different used buffers has been obtained and compared. According to the obtained results, the tris buffer solution showed a positive influence on the power output with a power density of 25.41% higher than phosphate.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42956753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Minimum hydrogen consumption-based energy management strategy for hybrid fuel cell unmanned aerial vehicles using direction prediction optimal foraging algorithm","authors":"Rui Quan,&nbsp;Zhongxin Li,&nbsp;Pin Liu,&nbsp;Yangxin Li,&nbsp;Yufang Chang,&nbsp;Huaicheng Yan","doi":"10.1002/fuce.202200121","DOIUrl":"10.1002/fuce.202200121","url":null,"abstract":"<p>In hybrid energy storage systems of fuel cell unmanned aerial vehicles (UAVs), achieving energy management while minimizing hydrogen consumption is the main goal for economic aspects and endurance enhancement. The external energy maximization strategy (EEMS) and the equivalent consumption minimization strategy (ECMS) are commonly used energy management strategies. However, they use a gradient descent approach, which converges slowly and does not guarantee the optimal solution. Thus, this paper proposes an optimization method based on a direction prediction optimal foraging algorithm (OFA/DP), which has the advantages of high optimization capability and simple parameter definition. In this study, the hybrid energy storage system comprises fuel cells and lithium-ion batteries for powering UAVs. To verify the validity of the proposed strategy, it is compared with rule-based and optimized methods of state machine control, fuzzy logic control based on frequency separation, ECMS, EEMS, and genetic algorithm. The obtained results confirm the superiority of the proposed OFA/DP-based EEMS method with an efficiency of 88.65% and a minimum hydrogen consumption of 19.06 g. Furthermore, it achieves optimal power distribution and leads to 38.62% minimization in hydrogen consumption.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45261483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance","authors":"Oluwaseun Ayotunde Alo,&nbsp;Iyiola Olatunji Otunniyi,&nbsp;Emmanuel Rotimi Sadiku","doi":"10.1002/fuce.202100157","DOIUrl":"10.1002/fuce.202100157","url":null,"abstract":"<p>Conductive polymer composites (CPCs) have been identified as viable replacements for graphite and metals for polymer electrolyte membrane fuel cell (PEMFC) bipolar plates (BPs). One important factor, apart from composite formulation, that affects the quality and properties of CPC BPs is the processing route. Therefore, understanding the possible processing methods for different matrix–filler combinations and their effects on the quality and properties of the plates can help in controlling and improving the final performance of BPs. This paper reviews the blending and molding techniques for CPC BPs, with a focus on relationship between formulation and processing method. The effects of processing route and conditions on microstructural features of CPC BPs, which affect the performance of the plates are also discussed. Finally, directions for further studies with potential to advance the development of quality and high-performance CPC BPs are highlighted. Identified key areas for further research include control of filler orientation to improve through-plane conductivity, correlation between processing parameters and dimensional accuracy of molded plates, and additive manufacturing of composite BPs.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47542683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and properties of graphite/polypropylene composite material reinforced by chopped carbon fibers for proton-exchange membrane fuel cell bipolar plates","authors":"Huili Wei,&nbsp;Guofeng Chang,&nbsp;Rongqun Shi,&nbsp;Sichuan Xu,&nbsp;Jinling Liu","doi":"10.1002/fuce.202200098","DOIUrl":"10.1002/fuce.202200098","url":null,"abstract":"<p>In this work, chopped carbon fibers (CCFs) with different lengths were added to graphite/polypropylene (PP) composite materials to achieve high conductivity and flexural strength performances, which are required for use in proton exchange membrane fuel cells. The effects of CCF length (2–4 mm), CCF content (0–5 wt.%), graphite type-natural flake graphite (NFG) and synthetic graphite (SG), and graphite particle size (18–106 µm) on the graphite/PP/CCFs composites are examined. The conductivities of the composites decrease significantly with increasing CCF length above 3 wt.%. CCFs improve the composite's strength, with a maximum strength of 45.8 MPa being achieved with 5 wt.% of 4 mm long CCFs. Composite with NFG exhibits superior conductivity to the one with SG but lacks flexural strength. The NFG particle size significantly affects the conductivity of the composite at high graphite contents, with a particle diameter of 75 µm resulting in maximum conductivity. An optimal composition with 38 µm/82 wt.% NFG and 2 mm/3 wt.% CCF, electrical conductivity, and flexural strength of 189.4 S/cm and 30.2 MPa, respectively, were achieved. Also, this composite exhibited interfacial contact resistance <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>2.52</mn>\u0000 <mspace></mspace>\u0000 <mi>m</mi>\u0000 <mi>Ω</mi>\u0000 <mo>·</mo>\u0000 <mi>c</mi>\u0000 <msup>\u0000 <mi>m</mi>\u0000 <mn>2</mn>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$2.52;{rm{m}}Omega cdot {rm{c}}{{rm{m}}^{rm{2}}}$</annotation>\u0000 </semantics></math> and contact angles of 111°, which showed favorable interfacial conductivity and hydrophobicity performances.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43048770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-temperature preferential CO oxidation in a hydrogen-rich stream over Pt-NaY and modified Pt-NaY catalysts for fuel cell application","authors":"Sachin Malwadkar,&nbsp;Parthasarathi Bera,&nbsp;Chilukuri V. V. Satyanarayana","doi":"10.1002/fuce.202200134","DOIUrl":"10.1002/fuce.202200134","url":null,"abstract":"<p>Preferential oxidation of CO (CO-PROX) in the hydrogen-rich stream has been carried out over Pt-NaY catalysts containing various Pt loadings along with Fe, Co, and Au. Catalysts have been characterized with inductively coupled plasma-atomic emission spectroscopy, Brunauer, Emmett, and Teller surface area, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, temperature programmed reduction, and Pt dispersion. CO-PROX activities and CO oxidation selectivities are observed to increase with an increase in Pt content. Pt-NaY catalyst with 0.75 wt.% Pt loading shows maximum CO-PROX activity at low temperatures. An increase in space velocity decreases the CO and O₂ conversions, but CO oxidation selectivity increases. A decrease in activity is observed when reformat gas contains around 20% H₂O. During the stability test, no change in CO and O₂ conversions is observed, but a small increase in the CO oxidation selectivity is noticed after 10 h indicating that the Pt-NaY catalyst is a promising candidate for CO-PROX reaction in a hydrogen-rich stream. The Pt-Fe-NaY catalyst shows better activity than the Pt-NaY catalyst but starts deactivating after 10 h. However, activity is observed to decrease over Pt-Co-NaY and Pt-Au-NaY catalysts. Pt-Fe-NaY catalyst with 0.75 and 0.35 wt.% Pt and Fe, respectively, shows better CO-PROX activity at a temperature of 75°C.</p>","PeriodicalId":12566,"journal":{"name":"Fuel Cells","volume":null,"pages":null},"PeriodicalIF":2.8,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41993459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}