Journal of Solid State Electrochemistry最新文献

{"title":"Double-layer structure and cation-dependent solvent decomposition in acetonitrile-based electrolytes","authors":"Pavithra Gunasekaran,&nbsp;Angel Cuesta","doi":"10.1007/s10008-025-06305-1","DOIUrl":"10.1007/s10008-025-06305-1","url":null,"abstract":"<div><p>We present an analysis of the microscopic structure of the interface between a gold electrode and acetonitrile-based electrolytes, utilising surface-enhanced infrared absorption spectroscopy in attenuated total reflection mode (ATR-SEIRAS) combined with voltammetric data. The investigation focuses on the potential-induced changes in the interactions between interfacial acetonitrile molecules and on the onset of reductive acetonitrile decomposition in Li⁺- and Na⁺-containing electrolytes. The acetonitrile molecules exhibit a potential-dependent reorientation, leading to an increase in the concentration of antiparallel dimers at the interface at negative potentials, as the nitrogen end of the molecule is pushed away from the surface. The initial stages of reductive decomposition of acetonitrile are different in the Li⁺- and Na⁺-based electrolytes. Spectral signatures characteristic of amines are seen in LiClO₄ acetonitrile solutions, while amide bands are also observed in NaClO₄. Because traces of water in acetonitrile must be the proton source for the reduction of interfacial acetonitrile to amines and amides, OH⁻ must also be generated during those processes. In fact, ATR-SEIRA spectra reveal the formation and subsequent precipitation of LiOH. Precipitation of NaOH in NaClO₄ seems to be absent, though. With increasingly negative potential, the reductive cleavage of acetonitrile results in the formation of several cyanide species. The corresponding cyanide-characteristic bands show a potential-dependent stretching frequency that suggests they correspond to adsorbed species. These findings highlight the effect of potential-induced solvent reorientation on solvent–solvent interactions at the interface as well as the impact of the electrolyte cation on the products of the reductive decomposition of acetonitrile.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2213 - 2224"},"PeriodicalIF":2.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-025-06305-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125743","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":"Computational and experimental approach to the electromechanical and electrochemical behavior of Pt-reduced IPMC","authors":"Roger Gonçalves,&nbsp;Evaldo B. Carneiro-Neto,&nbsp;Alex S. Moraes,&nbsp;Thiago Petrilli M. Dardis,&nbsp;Kaique A. Tozzi,&nbsp;Vinícius R. Caetano,&nbsp;Matheus C. Saccardo,&nbsp;Guilherme E. O. Blanco,&nbsp;Ariel G. Zuquello,&nbsp;Rafael Barbosa,&nbsp;Ernesto C. Pereira,&nbsp;Carlos H. Scuracchio","doi":"10.1007/s10008-025-06304-2","DOIUrl":"10.1007/s10008-025-06304-2","url":null,"abstract":"<div><p>Ionomeric polymer–metal composites (IPMCs) are advanced smart materials with an ionic-conducting polymer membrane coated with noble metal electrodes. When subjected to an electrical stimulus, an electric field is generated between the electrodes, causing solvated ions to migrate through the polymer membrane and create an internal pressure gradient, which results in the composite bending. However, the high cost of noble metals, such as gold and platinum, and the toxic waste generated during deposition are significant drawbacks. This study compares the electromechanical performance of a Nafion®-based IPMC with a reduced platinum (PR-IPMC) layer to that of a reference IPMC (R-IPMC). Tests were conducted under controlled relative humidity (RH), and blocking force and current response were used to assess performance. Scanning electron microscopy (SEM) was employed to examine the morphology of the platinum layer. The devices demonstrated optimal performance at 90% relative humidity (RH), with the PR-IPMC exhibiting a 60% thinner platinum layer. However, it displayed a 40% reduction in blocking force compared to the R-IPMC. The reduced platinum content results in cost savings and reduced waste production while still providing satisfactory mechanical performance. Theoretical analysis using molecular dynamics and finite element method (FEM) simulations revealed the stress distribution (<i>S</i>_Pt) in the platinum layers as a function of their thickness (<i>δ</i>_Pt). Interestingly, <i>S</i>_Pt remained independent of the ionomer’s hydration condition (<i>λ</i>), showing that thinner platinum layers are more efficient at storing stress relative to their thickness. Despite having only 40% of the platinum thickness, the PR-IPMC retained 57.6% of the stress compared to the reference IPMC. This relatively increased stress concentration explains why the decrease in blocking force is less than expected based on the reduction in platinum thickness. FEM simulations, aligned with experimental results, provide a useful tool for predicting device behavior under various conditions and guiding the development of future IPMC devices.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2407 - 2418"},"PeriodicalIF":2.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125744","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":"The origins of polarography in the USSR: Yevgeniya Nikolayevna Varasova","authors":"Vitaliy Yu. Kotov","doi":"10.1007/s10008-025-06295-0","DOIUrl":"10.1007/s10008-025-06295-0","url":null,"abstract":"<div><p>The history of electroanalysis is inextricably linked to that of polarography. Polarography was first developed in the 1920 s in Czechoslovakian and Japanese laboratories, where the foundations of the method were laid. Subsequently, the geography of laboratories using the polarographic method expanded considerably. This was mainly due to the students of J. Heyrovský, among whom was Yevgeniya Nikolayevna Varasova. The scientific activity of Varasova played a critical role in establishing polarography in the Soviet Union, a country that became one of the leading contributors to electrochemical analysis in the twentieth century. The many schools of polarography in the Soviet Union are a vivid testimony to this. Polarography and general electroanalytical chemistry, together with fundamental electrochemistry developed by A.N. Frumkin, contributed to the worldwide reputation of the Soviet Union as a centre of science in the twentieth century. This happened, despite the international isolation and internal political atrocities of the Soviet system, thanks to the dedicated work of its scientists. This article, based on archival data, reflects the events of Varasova’s tragically short life, her scientific achievements and her actions aimed at introducing polarographic equipment and methods into the work of Soviet scientific and industrial laboratories.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 10","pages":"4339 - 4354"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057680","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":"Recent development in metal phosphate-based electrode materials for supercapacitor application: A review","authors":"Abdallah Aldayyat,&nbsp;Fong Kwong Yam","doi":"10.1007/s10008-025-06280-7","DOIUrl":"10.1007/s10008-025-06280-7","url":null,"abstract":"<div><p>For the next generation of energy storage systems, electrode materials have drawn a lot of interest. Acquiring high specific capacitance, strong chemical stability, extended longevity, and natural abundance are the primary goals for the researchers. Metal phosphates with open-framework structures have higher electrochemical performance in contrast to their related oxides, sulfides, and hydroxides. This paper provides an overview of the newest developments in the engineering and design of metal phosphate-based electrode materials for supercapacitors. Regarding their structure and associated electrochemical performance, the review will specifically concentrate on three different types of metal phosphates: single metal phosphates, double metal phosphates, and composites of metal phosphates with carbon-based materials. A variety of experimental synthesis methods, structures of materials, and electrochemical characteristics are examined. The review will wrap up with a viewpoint that highlights the benefits and drawbacks of phosphate-based supercapacitor electrodes as well as potential future research areas. Research on metal phosphate (MPs)–based electrode materials and their composites in supercapacitor applications is limited.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 10","pages":"4249 - 4280"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057593","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":"Preparation of MoS2/TiO2/carbon ball electrodes for high-performance flow-electrode capacitive deionization device","authors":"Yu-Xuan Zhang,&nbsp;Dong-Sing Wuu,&nbsp;Jung-Jie Huang","doi":"10.1007/s10008-025-06300-6","DOIUrl":"10.1007/s10008-025-06300-6","url":null,"abstract":"<div><p>In this study, to increase the desalination efficiency of capacitive deionization systems, materials such as TiO₂ and MoS₂ were deposited on activated carbon balls (ACBs) through dynamic liquid-phase deposition. This deposition process increased the hydrophilicity and electrochemical properties of the electrodes. In addition, the synthesis concentration ratios of various precursors and catalysts were modulated to alter the ratios of the elements and the 1 T and 2H phases of MoS₂. The results indicated that, because of the porous nature of ACBs, TiO₂ and MoS₂ uniformly grew within the ACBs, effectively mitigating the uneven distribution of electric fields within the electrodes. At a 1 T to 2H phase ratio of 1:1, the synergistic effect of the composite material facilitated the rapid transport of electrolyte ions and electrons across the electrode surface, resulting in high electrochemical performance. Next, MoS₂/TiO₂/ACB electrodes were mixed with activated carbon to enhance the mobility of the flow electrodes, achieving a desalination efficiency of 68.65% and a desalination capacity of 40.3 mg/g. After 50 repeated desalination tests, a desalination retention rate of 95.2% was achieved. Taken together, these results confirm that MoS₂/TiO₂/ACB electrodes have a high seawater desalination efficiency and long-term stability, indicating their potential in water purification applications.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 10","pages":"4325 - 4337"},"PeriodicalIF":2.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057688","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":"Exploration of sodium dodecyl sulfate as a corrosion inhibitor for grey cast iron in phosphoric acid: effects of temperature and surface composition","authors":"Sara El Ouardighi,&nbsp;Yacine Baymou,&nbsp;Nadia Dkhireche,&nbsp;Mohamed Ebn Touhami,&nbsp;Yassine Hassani,&nbsp;Hind Malki","doi":"10.1007/s10008-025-06302-4","DOIUrl":"10.1007/s10008-025-06302-4","url":null,"abstract":"<div><p>The electrochemical behavior of two nineteenth and twentieth century grey cast iron alloys was studied in 0.5 M and 1 M phosphoric acid solutions, with sodium dodecyl sulfate (SDS) used as a corrosion inhibitor. The influence of temperature on the corrosion process, the critical micellar concentration (CMC) of SDS, and its inhibition efficiency were evaluated using conductimetry, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and inductively coupled plasma-optical emission spectrometry (ICP-OES). Two samples of grey cast iron, GCI-A and GCI-B, were studied. The presence of varying percentages of copper and manganese in the chemical composition of grey cast iron enhances its corrosion resistance. In phosphoric acid solutions, the surface charge of grey cast iron becomes negative in the presence of SDS molecules, as SDS adsorbs onto the metal surface through both chemical and physical interactions, acting as a mixed-type inhibitor by blocking anodic and cathodic reaction sites. Increasing the phosphoric acid concentration decreases the critical micellar concentration (CMC) of SDS, whereas an increase in temperature has the opposite effect. The addition of SDS at a concentration of 10⁻⁴ M significantly reduces iron dissolution in both grey cast iron alloys studied. Consequently, SDS decreases both anodic and cathodic current densities, effectively inhibiting the corrosion process of grey cast iron in phosphoric acid solutions, with an inhibition efficiency of approximately 95%. SEM analysis revealed that SDS protects the grey cast iron surface by reducing the size and density of graphite flakes. The inhibitive properties of SDS highlight its potential importance in the conservation and restoration of grey cast iron objects.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 10","pages":"4305 - 4324"},"PeriodicalIF":2.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057567","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":"Research on multi-parameter quantitative forecasting model of reinforcement corrosion in marine concrete structures","authors":"Hongfa Yu,&nbsp;Xianghui Han,&nbsp;Haiyan Ma,&nbsp;Wenliang Han,&nbsp;Yu Xu,&nbsp;Taotao Feng,&nbsp;Mei Xu,&nbsp;Zeqi Xu,&nbsp;Zengzhuang Li,&nbsp;Yuefeng Sun","doi":"10.1007/s10008-025-06290-5","DOIUrl":"10.1007/s10008-025-06290-5","url":null,"abstract":"<div><p>Corrosion of steel reinforcement is a key issue affecting the durability and service life of marine concrete structures. To develop a more accurate predictive model for the corrosion rate of steel reinforcement, this study conducted a series of experiments. Specimens with different rebar diameters and concrete cover thicknesses were prepared, and NaCl was added in varying amounts (0 to 0.6%, based on the binder mass, increasing by 0.1%). Two parallel sets of six specimens each (covering different combinations of rebar diameters and cover thicknesses) were made for each NaCl dosage, totaling 84 specimens. The linear polarization resistance (LPR) method was used to test these specimens under the same conditions. The results showed that the relative and absolute corrosion current densities of steel reinforcement in marine concrete generally follow a normal distribution, confirming the reliability of the current research approach. The study also analyzed the effects of free chloride content (<span>({C}_{text{f}})</span>), cover thickness (<i>C</i>), rebar diameter (<i>D</i>), and exposure time (<i>t</i>) on the corrosion rate. The corrosion current density (<span>({I}_{text{corr}})</span>) increases with higher free chloride content but decreases with thicker concrete cover, larger rebar diameter, and longer exposure time. Based on these findings, a comprehensive predictive model for the corrosion rate of steel reinforcement in marine concrete structures was developed and validated through significance tests. This model provides a scientific basis for the design and maintenance of marine infrastructure, enhancing the durability of reinforced concrete structures in harsh marine environments.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 10","pages":"4289 - 4304"},"PeriodicalIF":2.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057566","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":"A review of gelled electrolyte thermoelectrochemical cells: valorising low-grade heat to electricity via continuous and capacitive conversion mechanisms","authors":"Mark A. Buckingham","doi":"10.1007/s10008-025-06294-1","DOIUrl":"10.1007/s10008-025-06294-1","url":null,"abstract":"<div><p>Thermoelectrochemical cells (also known as thermogalvanic cells or thermocells) are electrochemical devices that convert thermal energy to electrical energy via entropically driven redox reactions. These devices have gained increasing attention this century as they have the possibility of valorising otherwise wasted (heat) energy to useful (electrical) energy with no moving parts, no greenhouse gas emissions, and using sustainably sourced elements such as iron (Fe). Liquid thermocells suffer from several issues including electrolyte leakage, lower ‘observed’ temperature gradients than those applied and poor mechanical properties. Towards applications such as body heat harvesting — where thermal energy sources are dynamic — these disadvantages can become significant. Gelled electrolyte thermocells have been developed as these are self-contained systems that achieve higher temperature gradients across the thermocell and have mechanical properties that allow the ability to stretch, bend, and twist. This makes gelled thermocells compatible with many of the proposed applications of these devices. However, compared to liquid electrolyte thermocells, gelled electrolyte thermocells typically achieve significantly lower performance, mainly due to frustrated ion transport in the denser matrix, reducing the generation of current, which also leads to reductions in power output over time. This review provides an overview of the current state of gelled electrolyte thermocells and compares them to their liquid counterparts.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2055 - 2074"},"PeriodicalIF":2.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10008-025-06294-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125553","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":"Professor Frank Marken on the Occasion of his 60th Birthday","authors":"Laurence M. Peter","doi":"10.1007/s10008-025-06292-3","DOIUrl":"10.1007/s10008-025-06292-3","url":null,"abstract":"","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2053 - 2054"},"PeriodicalIF":2.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125552","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":"Regulating NiCo-LDH’s morphology, loading, and capacitance: mixed use of anionic and cationic surfactants","authors":"Xiaoliang Wang,&nbsp;Kui Pan,&nbsp;Lige Guo,&nbsp;Shaobin Yang","doi":"10.1007/s10008-025-06286-1","DOIUrl":"10.1007/s10008-025-06286-1","url":null,"abstract":"<p>Improving capacitance performance and active material loading at the same time is essential for commercial electrode materials, e.g., layered double hydroxides (LDH). Mixed surfactants are more effective than single surfactants at reducing the surface tension of a solution and have a more significant impact on synthesis and modification. Mixed surfactants can also regulate interlayer spacing, morphology, and loading to acquire high capacitance performance. In this study, NiCo-LDH binder-free electrodes are fabricated on foam nickel using the hydrothermal method, with micelles formed by mixing sodium octyl sulfonate (SOS) and cetyltrimethylammonium bromide (CTAB) serving as soft templates. It is determined that by modifying the proportion of two surfactants, a worm-like morphology of NiCo-LDH could be achieved, with the specific surface area increasing by approximately twice the value observed for the no surfactants sample. After introducing octyl sulfonic acid groups (OS⁻), the maximum interlayer spacing reaches 2.85 nm, improving electrochemical performance. The maximum electrode load of 11.7 mg is obtained when adding 4 mmol SOS and 1 mmol CTAB. The maximum specific capacity of 1.73 mAh cm⁻² is obtained for the most loaded electrode at 3 mA cm⁻², and the capacity retention is 66.47% at 30 mA cm⁻². A hybrid device constructed using samples and AC has 2.22 mWh cm⁻² energy density at 1.70 mW cm⁻² and 66.67% capacity retention after 10,000 cycles at 100 mA cm⁻². The results indicate that the LDH electrode fabricated in this way has high load and high capacity and thus has great potential for application.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"4027 - 4039"},"PeriodicalIF":2.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141879","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}