Journal of Solid State Electrochemistry最新文献

{"title":"Cost-effective spray and spin coating of YSZ electrolyte slurries on aqueous-based anode tape casting for intermediate temperature solid oxide fuel cells","authors":"Bruna B. M. Corrêa,&nbsp;Fábio C. Antunes,&nbsp;João P. J. de Oliveira,&nbsp;Jhonata R. Verza,&nbsp;João P. A. dos Santos,&nbsp;Márcio R. Morelli,&nbsp;Thiago Dias,&nbsp;Danilo A. Dantas,&nbsp;Julian D. Hunt,&nbsp;Gustavo Doubek,&nbsp;Hudson Zanin","doi":"10.1007/s10008-026-06651-8","DOIUrl":"10.1007/s10008-026-06651-8","url":null,"abstract":"<div><p>Solid oxide fuel cell (SOFC) electrolytes play a crucial role in ensuring high performance in anode-supported SOFCs by providing efficient oxygen-ion conductivity. Yttria-stabilized zirconia (YSZ) is a well-established material for oxygen-ion conduction; however, the fabrication of thin and dense electrolyte layers generally requires specialized manufacturing processes. Although advanced deposition techniques, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD), can produce high-quality films, they are costly and difficult to scale up. In this study, a more cost-effective route for fabricating YSZ films is proposed, combining tape casting, spin coating, and calendering. YSZ films were deposited onto NiO/YSZ anodes fabricated by tape casting using aqueous slurries. Scanning electron microscopy (SEM) and impedance spectroscopy (IS) were employed to evaluate the film microstructure and ionic conductivity. The resulting films achieved a conductivity of 0.37 S cm^–1 at 800 °C, approximately seven times higher than the typical YSZ conductivity of 0.05 S cm^–1.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3279 - 3290"},"PeriodicalIF":3.1,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-026-06651-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of g-C3N4-AC hierarchical porous composite and study on supercapacitor performance","authors":"Liguo Wei,&nbsp;Zhuo Ren,&nbsp;Lishuang Zhao,&nbsp;Shenglin Cao,&nbsp;Yunting Ju,&nbsp;Chunjiong Lu,&nbsp;Yuan He,&nbsp;Jiaming Yu","doi":"10.1007/s10008-026-06637-6","DOIUrl":"10.1007/s10008-026-06637-6","url":null,"abstract":"<div><p>Developing electrode materials for supercapacitors with high specific capacitance, structural stability and economic efficiency still faces numerous challenges. In this study, taking advantage of the unique structural properties of two-dimensional layered g-C₃N₄, the g-C₃N₄-AC (activated carbon) hierarchically porous composite was prepared using a simple thermal polymerization method to optimize the pore structure of lignite-based AC and enhance its electrochemical performance. The introduction of g-C₃N₄ can effectively regulate the pore size distribution of AC, increase active sites and facilitate the rapid transport of electrolyte ions. The as-prepared g-C₃N₄-AC hierarchically porous composite exhibits a significantly improved specific capacitance of 182.40 F g⁻¹ at a current density of 0.5 A g⁻¹, which is much higher than that of pristine lignite-based AC (107.80 F g⁻¹). After 10 000 charge–discharge cycles at a high current density of 10 A g⁻¹, the composite still preserves 96.4% of its initial capacitance with a Coulombic efficiency of 99.8%, highlighting its remarkable long-term stability. This work provides a new strategy and insight for the design of high-performance and low-cost carbon-based electrode materials for supercapacitors.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3267 - 3277"},"PeriodicalIF":3.1,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Na2FeP2O7 films on multilayer graphene for high-performance cathodes of sodium-ion batteries","authors":"Junming Xu,&nbsp;Xinqi Ding,&nbsp;Jianqiang Yang,&nbsp;Wenyi He,&nbsp;Dongdong Xu,&nbsp;Liang Chu","doi":"10.1007/s10008-026-06646-5","DOIUrl":"10.1007/s10008-026-06646-5","url":null,"abstract":"<div><p>Sodium-ion batteries (SIBs) have emerged as cost-effective alternatives to lithium-ion batteries for large-scale energy storage, yet their development relies on high-performance cathode materials. While Na₂FeP₂O₇ offers structural stability and economic advantages, its practical application is hindered by poor electronic conductivities. Herein, we design a two-step synthesis strategy to construct Na₂FeP₂O₇ films on mechanically exfoliated multilayer graphene (MLG), involving in-situ chemical deposition of Fe₂O₃ followed by solid-phase conversion to Na₂FeP₂O₇. The resulting composite features well interfacial contact between Na₂FeP₂O₇ films and MLG nanosheets, which effectively addresses conductivity limitations. As a cathode, the NFPO/MLG composite demonstrates superior electrochemical performance, delivering 95.3 mAh g⁻¹ at 0.2 C with remarkable rate capability (75.6 mAh g⁻¹ at 10 C) and exceptional cycling stability (98.7% retention after 1000 cycles at 2 C). This work provides a general interfacial engineering approach to enhance pyrophosphate-based cathodes for advanced energy storage systems.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3257 - 3266"},"PeriodicalIF":3.1,"publicationDate":"2026-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic strain and metal-support interactions in a hollow Pt3Co/H-TiN-C nanoreactor for enhanced oxygen reduction reaction","authors":"Jun Zhang,&nbsp;Boyu Liu,&nbsp;Laizheng Luo,&nbsp;Pingjuan Liang,&nbsp;Jinzhi Li,&nbsp;Lingying Jiang,&nbsp;Xingyi Chen,&nbsp;Huan Tang,&nbsp;Longxiang Chen,&nbsp;Meng Jin,&nbsp;Weimin Wu,&nbsp;Shi-Yu Lu","doi":"10.1007/s10008-026-06645-6","DOIUrl":"10.1007/s10008-026-06645-6","url":null,"abstract":"<div><p>The development of cost-effective, highly active and durable Pt-based electrocatalysts for oxygen reduction reaction (ORR) remains a major challenge to advancing proton exchange membrane fuel cells (PEMFCs). Hollow nanoarchitecture loaded with metal alloys has been widely used as a nanoreactor to regulate electronic structure of active sites and enhance reactant enrichment. In this study, PtCo alloy nanoparticles are uniformly dispersed on both outer and inner surfaces of hollow TiN spheres and carbon composite support (Pt₃Co/H-TiN-C). The optimized Pt₃Co/H-TiN-C nanoreactor delivers a mass activity of 64 mA mg_Pt⁻¹ and a specific activity of 0.122 mA cm_Pt⁻² at 0.90 V vs. RHE in 0.1 M HClO₄ solution. Furthermore, the Pt₃Co/H-TiN-C nanoreactor enables an effective four-electron transfer pathway with high selectivity and low H₂O₂ yield (less than 3%) toward ORR process. After accelerated durability tests, the half-wave potential of Pt₃Co/H-TiN-C shows a decay of only 24 mV after 10,000 cycles, markedly smaller than Pt/C catalyst (74 mV). The enhanced durability and ORR kinetics of Pt₃Co/H-TiN-C are attributed to the synergistic effect of strain effect in PtCo alloy, strong interactions between PtCo and H-TiN-C, and nanoreactor architecture. These features not only regulate the Pt electronic structure, increasing the Pt⁰ content, but also expose more accessible active sites on the outer/inner surfaces to accelerate charge/mass transport. Moreover, alloyed Co atom suppress the dissolution of Pt, endowing an improved durability. This work provides a new strategy for designing efficient and durable Pt-based ORR catalysts for PEMFCs.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3243 - 3256"},"PeriodicalIF":3.1,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical and density functional theory investigation of formic acid oxidation on molybdenum disulfide-modified glassy carbon electrodes","authors":"Justice Chikwerendu George,&nbsp;K. L. Oguzie,&nbsp;C. O. Akalezi,&nbsp;E. E. Oguzie","doi":"10.1007/s10008-026-06624-x","DOIUrl":"10.1007/s10008-026-06624-x","url":null,"abstract":"<div><p>The development of efficient and low-cost non-precious electrocatalysts for formic acid oxidation is important for advancing direct formic acid fuel cells (DFAFCs). In this work, a molybdenum disulfide-modified glassy carbon electrode (MoS₂/GCE) was fabricated through a simple drop-casting approach and evaluated as an electrocatalyst for formic acid electrooxidation in acidic medium. This study combines electrochemical characterization with density functional theory calculations to provide insight into the role of MoS₂ in formic acid electrooxidation . Atomic force microscopy revealed changes in surface morphology following MoS₂ modification of the glassy carbon electrode. Electrochemical studies demonstrated significantly enhanced catalytic activity of the MoS₂/GCE compared with the bare GCE. Under optimized conditions of 1.0 M HCOOH and 1.0 M H₂SO₄, the MoS₂/GCE exhibited a maximum anodic peak current of approximately 1.5 mA, corresponding to a current density of 21.2 mA cm⁻². Scan-rate studies showed a linear relationship between anodic peak current and the square root of scan rate, indicating a diffusion-controlled oxidation process. Chronoamperometric measurements further revealed improved current retention and enhanced short-term operational stability relative to the bare GCE. To provide mechanistic insight, Density functional theory (DFT) calculations were performed using the DMol³ module. The calculations revealed a relatively small energy gap (0.74 eV) between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO), suggesting favorable charge-transfer characteristics. Fukui function analysis identified sulfur atoms as the most reactive sites, while adsorption studies confirmed favorable interaction between formic acid and the MoS₂ surface. The combined electrochemical and computational results demonstrate that MoS₂ is an effective low-cost electrocatalyst for formic acid oxidation and highlight its potential application in DFAFC technologies.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3229 - 3242"},"PeriodicalIF":3.1,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-principles investigation on conductivity and stability of LiPON electrolyte for Co-RuO2 electrode in all-solid-state supercapacitor","authors":"Zhirong Chen,&nbsp;Rongyao Chen,&nbsp;Junye Tu,&nbsp;Ningbo Liao","doi":"10.1007/s10008-026-06642-9","DOIUrl":"10.1007/s10008-026-06642-9","url":null,"abstract":"<div><p>Ruthenium oxide (RuO₂) is a promising candidate as electrode of all-solid-state supercapacitors due to its high capacity, high stability and excellent conductivity. However, the interfacial structure and electronic properties of RuO₂ electrode/electrolyte interface at the atomic scale are still not fully characterized. Herein, first-principles calculations are used to explore compatibility of elemental doping improved RuO₂ electrodes with LiPON solid electrolyte. According to the calculated density of state and interfacial energy, it can be deduced that Co-RuO₂/LiPON interface exhibits the most stable interface and the highest affinity with excellent conductivity. By incorporating Co-RuO₂ electrode with LiPON electrolyte, the bandgap of the interface system shifts to a lower energy of 0.019 eV, indicating a higher conductivity of the interfacial system and a shift towards a metallic nature. Mean square displacements reveal excellent ion mobility and fast transport performance of the Co-RuO₂/LiPON interfacial system.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3221 - 3227"},"PeriodicalIF":3.1,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Fabrication of ZnO–polysulfone solid-state composite membrane for water purification applications","authors":"Mohd Arsalan,&nbsp;Aiman Khan,&nbsp;Shaikh Aliya Aijaz,&nbsp;Md Oayes Midda,&nbsp;Fahad Alam,&nbsp;Afzal Hussain,&nbsp;Mohamed F. Alajmi,&nbsp;Suhaib Alam,&nbsp;Mohammad Ehtisham Khan","doi":"10.1007/s10008-026-06636-7","DOIUrl":"10.1007/s10008-026-06636-7","url":null,"abstract":"","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 10","pages":"3485 - 3485"},"PeriodicalIF":3.1,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerated proton transport in polymer-assisted metal-aminoacid framework","authors":"Anju Mohan,&nbsp;Powrnika Selvakumar,&nbsp;Amrita Pal,&nbsp;Sri Vanaja Swaminathan,&nbsp;Aneesh Anand Nechikott,&nbsp;Prashant Kumar Nayak,&nbsp;Tanay Kundu","doi":"10.1007/s10008-026-06638-5","DOIUrl":"10.1007/s10008-026-06638-5","url":null,"abstract":"<div><p>Sustainable energy generation employing fuel cells has gained deep research attention in the current energy landscape. Hybrid materials like MOFs are per-excellent candidates than conventional fluoropolymers, having properties like high surface area, tunable structure, and functionalities to incorporate proton carriers. The limitations of pristine MOF membranes are inter-particle resistance and poor mechanical strength that decrease proton conduction and increase activation energy. To address these issues, we employ a Ni-histidine-based MOF, bearing inexpensive, sustainable, and protic aminoacid as ligand. The network is extended through extensive H-bonding between the histidine and solvent water molecules. These protic networks paved the proton conduction in humid conditions (1.8 × 10^− 4 S cm^− 1), which was further enhanced by an order of magnitude (up to 1.5 × 10^− 3 S cm^− 1) through blending with polyvinyl alcohol (PVA). The resulting composite induces mechanical integrity like high flexibility, reduced inner-particle resistance, and a boosted H-bonding network that promotes Ni-His@PVA as an appreciable proton conductor in ambient and non-ambient conditions. Furthermore, decrease in activation energy from the vehicular (0.59 eV for Ni-His) to the Grotthuss regime (0.20 eV for Ni-His@PVA) ensures facile proton transport. This design protocol will encourage sustainable proton-conducting MOF composite membranes for practical fuel cell applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3211 - 3219"},"PeriodicalIF":3.1,"publicationDate":"2026-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"La2O3 precursor purification for enhanced LLZTO solid electrolytes","authors":"Ruixin Hao,&nbsp;Jinjiang Liang,&nbsp;Tianyi Gao,&nbsp;Qiong Yuan,&nbsp;Hongsheng Shi,&nbsp;Wei Liu,&nbsp;Yi Yu","doi":"10.1007/s10008-026-06628-7","DOIUrl":"10.1007/s10008-026-06628-7","url":null,"abstract":"<div><p>Garnet-type Li_6.4La₃Zr_1.4Ta_0.6O₁₂ (LLZTO) is a promising solid electrolyte, but Li dendrite penetration remains a critical challenge. Since pores and grain boundaries are often regarded as preferential sites for Li deposition, the local structure and chemistry of these regions were investigated. Zr enrichment was observed near pores and grain boundaries, and focused ion beam (FIB)-transmission electron microscopy (TEM) analysis identified the grain boundary impurity phase as Li₂ZrO₃, indicating that local chemical heterogeneity is closely associated with failure-sensitive regions in LLZTO. To trace the origin of this impurity phase, the precursor was further examined. La₂O₃ was found to undergo hydration during storage, forming La(OH)₃ and introducing an effective stoichiometric deviation during synthesis, which promotes Li₂ZrO₃ formation. After pre-annealing purification of La₂O₃, the impurity phase was significantly suppressed, while the relative density and critical current density (CCD) of LLZTO were both markedly improved. These results demonstrate that precursor purification is an effective strategy for improving the phase purity, relative density, and current tolerance of LLZTO.</p><h3>Graphical abstract</h3><p>Online Abstract Figure: La₂O₃ precursor purification improves LLZTO relative density and current tolerance. Pre-annealing commercial La₂O₃ at 900 °C for 10 h reduces hydroxide/oxycarbonate-related impurities, suppresses Li₂ZrO₃ formation, and yields denser LLZTO ceramics with enhanced CCD.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3197 - 3209"},"PeriodicalIF":3.1,"publicationDate":"2026-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-supported Cu−Bi bimetallic anode on iron foam with high areal capacitance for asymmetric supercapacitors","authors":"Shuangyi He,&nbsp;Weiwei Zhao,&nbsp;Shuai Zhang,&nbsp;Tianbao Li,&nbsp;Jujie Luo","doi":"10.1007/s10008-026-06635-8","DOIUrl":"10.1007/s10008-026-06635-8","url":null,"abstract":"<div><p>Cu − Bi bimetallic material with excellent electrochemical performance was successfully fabricated on iron foam via a one-stop microwave method. Under the optimal microwave power, heating time, and metal molar ratio, metallic Bi presents a needle-like morphology, interconnects to form a network, and is coated with Bi. This unique structure endows the Cu − Bi bimetal with the best electrochemical performance. Meanwhile, metallic Fe undergoes redox reactions in the alkaline electrolyte, which further enhances the capacitance value. The electrode prepared under the optimal synthesis conditions achieves an impressive areal capacitance value of 7.55 F cm⁻² when tested at 1 A cm⁻², and it maintains 77.47% of its initially measured capacitance even after undergoing 15,000 long-term charge–discharge cycles, demonstrating excellent electrochemical stability. The assembled asymmetric supercapacitor device retains 84.1% of its original capacitance after 20,000 cycles. A power density value of 1185 μW cm⁻² is realized when the energy density reaches 766.96 μWh cm⁻².</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"30 9","pages":"3169 - 3181"},"PeriodicalIF":3.1,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}