Hugo L. S. Santos, Leticia S. Bezerra, Pedro H. C. Camargo, Lucia H. Mascaro
{"title":"Tailoring WO3 photoelectrodes with defect-rich MoO3-x nanosheets for efficient water splitting reaction","authors":"Hugo L. S. Santos, Leticia S. Bezerra, Pedro H. C. Camargo, Lucia H. Mascaro","doi":"10.1007/s10008-025-06277-2","DOIUrl":"10.1007/s10008-025-06277-2","url":null,"abstract":"<div><p>Despite its potential for photochemical and photoelectrochemical applications, tungsten trioxide (WO<sub>3</sub>) presents limitations due to its wide bandgap and rapid charge carrier recombination. Here, the photoelectrochemical performance of WO<sub>3</sub> films were enhanced by incorporating defect-rich MoO<sub>3-x</sub> nanosheets. The WO<sub>3</sub> films were produced using a simple polymer-assisted deposition (PAD) method and subsequently modified with defect-rich MoO<sub>3-x</sub> nanosheets, prepared via solvothermal synthesis, by drop-casting. Electronic microscopy revealed that WO<sub>3</sub> exhibited an agglomerated nano-globular structure with several fissures where the MoO<sub>3-x</sub> nanosheets were anchored. In terms of photoelectrochemical performance, the optimal WO<sub>3</sub>/MoO<sub>3-x</sub> film exhibited photocurrent densities of 1.30 ± 0.12 mA cm<sup>−2</sup> and 3.20 ± 0.2 mA cm<sup>−2</sup> under solar simulator and LED 427 nm illumination, respectively, doubling the photocurrent density of bare WO<sub>3</sub>. This enhanced performance was attributed to the formation of a type II heterojunction, which facilitates more efficient charge carrier separation and due to the catalytic enhancement for the oxygen evolution reaction provided by MoO<sub>3-x</sub>.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2157 - 2167"},"PeriodicalIF":2.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125718","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":"Kinetic and morphological study of palladium electrodeposits onto indium tin oxide (ITO) substrates","authors":"Luis Humberto Mendoza-Huizar","doi":"10.1007/s10008-025-06291-4","DOIUrl":"10.1007/s10008-025-06291-4","url":null,"abstract":"<div><p>In this study, a kinetic and morphological study about the palladium (Pd) electrodeposition onto an Indium Tin Oxide (ITO) glass electrode was investigated. The electrodeposition was carried out in a plating bath containing 0.01 M PdCl₂ and 1 M KCl at pH 6. The predominance diagrams showed that the dominant chemical species was PdCl₄<sup>2</sup>⁻. Chronoamperometry was employed to analyze the kinetics of Pd electrodeposits within the potential range of -0.300 to -0.650 V, revealing a progressive nucleation process with high nucleation rate values. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) techniques were employed to characterize Pd electrodeposits on the ITO substrate. At a potential of -0.350 V, dispersed Pd particles were observed, whereas at -0.450 V, the particle density increased. At -0.550 V, a homogeneous deposit was formed, resulting from the overlapping of Pd nuclei.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"3977 - 3987"},"PeriodicalIF":2.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145059","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 one-pot synthesis of ZnS-NiS-NiS2 composite and its synergistic effect on different electrolytes for supercapacitor applications","authors":"Ponnusamy Paunkumar, Sundaram Ganesh Babu","doi":"10.1007/s10008-025-06288-z","DOIUrl":"10.1007/s10008-025-06288-z","url":null,"abstract":"<div><p>To date, owing to high molar conductivity and capacitance, metal sulfide–based electrodes have been constructed for supercapacitor applications. Supercapacitors (SCs) are known for their rapid charge–discharge rate and long-cycle durability. For the first time, a composite including zinc sulfide, nickel sulfide, and nickel disulfide (ZnS-NiS-NiS<sub>2</sub>) was successfully produced using a one-pot solvothermal technique for supercapacitor applications in diverse electrolytes. XRD and FT-IR measurements revealed the construction of the prepared composite. SEM and HR-TEM investigations demonstrate that the produced material is possessed spherical. The ZnS-NiS-NiS<sub>2</sub> composite was studied for its specific capacitance in the presence of dissimilar electrolytes. In comparison to Na<sub>2</sub>SO<sub>4</sub> (1 M) electrolyte and a blend of KOH (0.5 M)/Na<sub>2</sub>SO<sub>4</sub> (1 M) electrolytes, the KOH (0.5 M) electrolyte achieves an exceptional specific capacitance of 179 F g⁻<sup>1</sup> at a current density of 1 A g⁻<sup>1</sup>. The ZnS-NiS-NiS<sub>2</sub> electrode preserves 91% of its capacitance across 3000 cycles at 5 A g⁻<sup>1</sup> when using KOH (0.5 M) as an electrolyte. The synthesized ZnS-NiS-NiS<sub>2</sub> electrode can be employed in the future development of energy preservation.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"3967 - 3976"},"PeriodicalIF":2.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144922","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}
Yifan Zhang, Tian Jiang, Zhiliang Guo, Yujie Hou, Yuli Zhang, Xinyi Wan, Qian Lu, Ran Chen, Lixu Lei
{"title":"Numerical simulation of lead-acid battery (I): the impact of plate size and discharge rate on its performance","authors":"Yifan Zhang, Tian Jiang, Zhiliang Guo, Yujie Hou, Yuli Zhang, Xinyi Wan, Qian Lu, Ran Chen, Lixu Lei","doi":"10.1007/s10008-025-06265-6","DOIUrl":"10.1007/s10008-025-06265-6","url":null,"abstract":"<div><p>Lead acid batteries (LABs) could solve all the problems in renewable energy storage of ultra-large scale (up to GW/TWh) due to their cost-efficiency, reliability and recyclability. The ultra-large scale storage demands large-capacity LABs with enhanced performance. To investigate the impact of plate size and discharge rate on discharge performance of LABs, we have constructed three-dimensional models considering the conductivities of grid and active materials, electrochemical reactions, and mass transfer to simulate galvanostatic discharge processes. The simulations show that inherent electrical resistance causes inhomogeneous distributions of potential and overpotential, which result in uneven reaction rate across the plates that causes even more inhomogeneous distribution of current density, sulfuric acid concentration and depth of discharge. During high-rate discharge of large electrode, the increased ohmic voltage drop, coupled with slow mass transfer of sulfuric acid, causes lower utilization of active materials located at the positions further away from the lug and sulfuric acid stratification. These simulations provide insights for optimizing the design of LABs.</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 9","pages":"3951 - 3965"},"PeriodicalIF":2.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144923","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 density of states in electrolyte solutions","authors":"Stephen Fletcher","doi":"10.1007/s10008-025-06287-0","DOIUrl":"10.1007/s10008-025-06287-0","url":null,"abstract":"<div><p>The goal of this paper is to develop a physical model of energy fluctuations inside electrolyte solutions. The methods used are essentially those of statistical thermodynamics. The key result is an explicit formula for the density of acceptor state energies involved in electron transfer. It is a chi-squared density with one degree-of-freedom. This discovery provides an important correction to the Marcus-Hush-Chidsey theory of electron transfer, which wrongly assumes that the density of energy states in an electrolyte solution is Gaussian.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2195 - 2201"},"PeriodicalIF":2.6,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125711","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":"Development of an azo-based organic electrode material for aqueous rechargeable lithium batteries","authors":"M. Chaithra, G. S. Suresh","doi":"10.1007/s10008-025-06282-5","DOIUrl":"10.1007/s10008-025-06282-5","url":null,"abstract":"<div><p>Employment of environmentally friendly, potentially stable, and low-cost organic electrode material is assumed to be a very promising electrode material for next-generation rechargeable lithium batteries (RLBs). Herein for the first time, we fabricated a Bismarck Brown Y (BBY) as electrode material for aqueous rechargeable lithium batteries. BBY is a prototypical aromatic azo compound with two azo bonds (-N = N-) in their molecular structure with an IUPAC name, 4,4′-[benzene-1,3-diyldi(<i>E</i>)diazene-2,1-diyl]dibenzene-1,3-diamine. It reversibly reacts with lithium-ion via redox reaction of the azo group. To improve the electrochemical behaviour and stability of electrode material, carbon nanotubes are incorporated in BBY through solution-processing method. The resulting composite (BBY@CNTs) in three-electrode system showed a discharge capacity of 226.56 mA h g<sup>−1</sup> which proved that N = N bond can act as an active site for reversible redox process. BBY/C│aq. Saturated Li<sub>2</sub>SO<sub>4</sub>│LiMn<sub>2</sub>O<sub>4</sub> full cell showed the charge–discharge capacity at 118.43 mA h g<sup>−1</sup> and 107.24 mA h g<sup>−1</sup>, respectively. This agreeable result mark ably suits this material as an anode in aqueous rechargeable lithium batteries for present and future high energy demands.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"3939 - 3949"},"PeriodicalIF":2.6,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144708","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}
Nikoloz Nioradze, Tinatin Dolidze, Lela Kvinikadze, David Vashakidze, Dimitri E. Khoshtaryia
{"title":"Temperature-aided multi-faced electrochemistry of copper (II) ions set inside self-assembled 2D homocysteine films attached onto the gold surface","authors":"Nikoloz Nioradze, Tinatin Dolidze, Lela Kvinikadze, David Vashakidze, Dimitri E. Khoshtaryia","doi":"10.1007/s10008-025-06263-8","DOIUrl":"10.1007/s10008-025-06263-8","url":null,"abstract":"<div><p>Transformation of the “ordinary,” (originally appearing) electrochemical cyclic voltammetry (CV) signal of Au/homocysteine/Cu(II) two-dimensional (2D) composite to the amplified sharp voltammetric response was studied in electrolyte solutions by means of the fast-scan cyclic voltammetry. The composite was constructed via building self-assembled (SAM) monolayer of L-homocysteine (L-Hcy) or DL-homocysteine (DL-Hcy) on a gold electrode surface with subsequent anchoring copper(II) on it. The change of nature of electrochemical response of the system was triggered by the moderate elevation of temperature of the cell (containing phosphate buffer or sodium chloride serving as electrolyte solutions). Solutions at the first stage of the overall procedure of SAM preparation contained L-Hcy or DL-Hcy components, and the copper chloride, at the second stage, aiming anchoring Cu ions onto SAM. This work is another outstanding case reporting about the remarkable specific CV signal transformation for emerging hybrid 2D bioinspired redox-active 2D systems presumably capable of collective charge-carrier exchange transformations.</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":"29 9","pages":"3931 - 3938"},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144767","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}
Sergey Ya. Istomin, Leonid V. Pugolovkin, Kirill A. Dosaev, Ivan V. Mikheev, Dmitrii A. Strebkov, Aleksandra I. Zybina, Galina A. Tsirlina
{"title":"The effect of turbostratic stacking and interlayer disorder on the birnessite recharging","authors":"Sergey Ya. Istomin, Leonid V. Pugolovkin, Kirill A. Dosaev, Ivan V. Mikheev, Dmitrii A. Strebkov, Aleksandra I. Zybina, Galina A. Tsirlina","doi":"10.1007/s10008-025-06274-5","DOIUrl":"10.1007/s10008-025-06274-5","url":null,"abstract":"<div><p>Three chemically synthesized sodium birnessites with essentially different structural features are studied in respect to the analysis of various contributions to recharging in neutral and alkaline solutions in a wide potential interval. The comparison of voltammetric data in Na<sub>2</sub>SO<sub>4</sub> and NaOH solutions confirms that an apparent extension of the overall recharging interval observed in the former case is a general feature of various birnessites, which can be reliably explained by participation of protons in intercalation and, correspondingly, by local pH increase. This results in the shift of potential scale referred to reversible hydrogen electrode. The effect of lattice disorder induced by the increase of the average oxidation state of manganese, as well as the effect of interlayer space extension, is addressed on the basis of coulometric analysis of scan rate dependence. Rather weak effect of birnessite turbostratic distortions/Mn oxidation state on intercalation contribution to recharging is found. However, this distortion and the extension of the interlayer space favor higher intercalation reversibility at not too high scan rates. The increase of interfacial contribution to recharging by means of birnessite dispersion seems to be the most efficient way to increase the reversible recharging capacity, as this strategy can be applied to any potential interval, when the alternative strategy focused on the increase of intercalation contribution requires too low cathodic potentials, i.e., induces the risk of reductive birnessite degradation.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 2024","pages":"2265 - 2280"},"PeriodicalIF":2.6,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125731","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":"Impact of switching potential and time on the optical performance of Nickel/Tungsten oxide-based electrochromic devices","authors":"Jarinya Yosthisud, Piyapong Asanithi, Pattana Rakkwamsuk, Chumphon Luangchaisri","doi":"10.1007/s10008-025-06256-7","DOIUrl":"10.1007/s10008-025-06256-7","url":null,"abstract":"<div><p>This study investigates the effects of switching potential and switching time on the optical performance of electrochromic devices (ECDs). Full-cell ECDs were assembled into sandwich-type cells, with nickel hydroxide (NiO<sub>x</sub>H<sub>y</sub>) as the anodic and tungsten oxide (WO₃) as the cathodic layers. A conductive layer of 0.5 M lithium perchlorate in propylene carbonate was used, with all layers positioned between fluorine-doped tin oxide-coated glass. NiO<sub>x</sub>H<sub>y</sub> and WO₃ thin films were deposited via reactive direct current magnetron sputtering under optimized conditions. The optical performance was evaluated under switching potentials (± 0.5 to ± 2.5 V) and switching times (5 to 35 s). Optimal switching conditions were achieved at ± 2.0 V and 30 s, yielding a visible transmittance change (Δ%T<sub>vis</sub>) of 63.2%, a transmittance change at 550 nm (Δ%T<sub>550</sub>) of 65.6%, a contrast ratio of 7.02, and an optical density change of 0.85. Under these conditions, either or both NiO<sub>x</sub>H<sub>y</sub> and WO₃ layers approached saturation, with nearly all sites occupied by the injected Li⁺ ions. They also exhibited excellent optical memory, with %T<sub>550</sub> increasing by only 2.9% over 6,200 s. Stable performance was observed at ± 1.5 V and 20 s, with Δ%T<sub>550</sub> maintained between 44 and 49% for over 12,600 s. These findings highlight the importance of optimizing switching potential and time for enhanced ECD performance. The results are particularly relevant for smart windows, energy-efficient buildings, and automotive glass. Fast switching reduces glare in windshields, improving driving safety, while moderate switching in buildings enhances energy efficiency and occupant comfort.</p></div>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"29 9","pages":"3911 - 3929"},"PeriodicalIF":2.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144483","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}