Journal of Electroanalytical Chemistry最新文献

{"title":"Visible light-assisted photoelectrochemical sensing platforms based on the hierarchical architectures of 3D Ni-graphene@au skeletons for H2O2 detection in human serum","authors":"Han-Wei Chang ,&nbsp;Yan-Hua Chen ,&nbsp;Jing-Yu Lin","doi":"10.1016/j.jelechem.2025.119523","DOIUrl":"10.1016/j.jelechem.2025.119523","url":null,"abstract":"<div><div>Hydrogen peroxide (H₂O₂), one of the reactive oxygen species (ROS), is closely linked to carcinogenesis and tumor progression, making sensitive and accurate detection essential for early disease diagnosis. In this study, plasmonic Au nanoparticles were integrated into an interconnected 3D porous Ni–graphene framework to construct hierarchical Ni–graphene@Au conductive skeletons. The material was synthesized through a simple one-step electrodeposition method to improve both efficiency and sensitivity of H₂O₂ detection. The engineered architecture functions as a photoelectrochemical sensing platform, where the strong localized surface plasmon resonance (LSPR) effect of Au nanoparticles enables efficient light harvesting under plasmonic excitation and significantly enhances photoelectrochemical performance. Enhancement arises from the synergistic interaction between LSPR-active Au nanoparticles and the highly conductive 3D porous Ni–graphene network, which provides an enlarged photoelectroactive surface area and facilitates rapid charge transport. Under light-assisted conditions, the Ni–graphene@Au sensor exhibited a strong photoelectrocatalytic response toward H₂O₂ detection. When applied to diluted human serum samples, the sensor delivered a linear response in the 0.1–1.0 mM range, with excellent sensitivity (0.1197 mA mM⁻¹ cm⁻²) and a low limit of detection (33.5 μM). The demonstrated performance highlights superior analytical capability in real biological environments. Overall, the outstanding photoelectrochemical properties of the Ni–graphene@Au architecture indicate strong potential for clinical implementation in H₂O₂ sensing, particularly for early disease diagnosis.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119523"},"PeriodicalIF":4.1,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SnBr2 as a self-defense redox mediator enhances the cycle stability in lithium‑oxygen batteries","authors":"Zhongyu Huang ,&nbsp;Xinxin Zhuang ,&nbsp;Tianle Li ,&nbsp;Qianyan Wang ,&nbsp;Menglin Gao ,&nbsp;Yaling Liao ,&nbsp;Xiaoping Zhang","doi":"10.1016/j.jelechem.2025.119526","DOIUrl":"10.1016/j.jelechem.2025.119526","url":null,"abstract":"<div><div>Redox mediator is used to reduce the overpotential of lithium‑oxygen batteries by effectively accelerating the decomposition of the discharge product Li₂O₂. Unfortunately, the oxidized redox mediator diffuses to the anode and deteriorates the lithium metal surface. The so-called shuttle effect not only leads to the consumption of the redox mediator but also causes the degradation of cycle stability. Thus, we propose a self-defense redox mediator, tin (II) bromide (SnBr₂), to counter this problem. It can generate Br⁻/Br₃⁻ redox couple in lithium‑oxygen batteries to lower the overpotential and form a uniform Sn-rich layer on the lithium anode surface to resist the attack of Br₃⁻, thereby stabilizing the lithium metal anode. As a result, the lithium‑oxygen batteries with SnBr₂ show significantly improved energy efficiency and cycle performance.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119526"},"PeriodicalIF":4.1,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pseudocapacitive behavior modulation and energy storage optimization via nitrogen-molybdenum co-doping in coconut shell-derived porous activated biochar","authors":"Jiankai Liu,&nbsp;Mingshu Chi,&nbsp;Li Bai,&nbsp;Bochong Sun,&nbsp;Xiaoyu Wen,&nbsp;Shuaifei Li","doi":"10.1016/j.jelechem.2025.119507","DOIUrl":"10.1016/j.jelechem.2025.119507","url":null,"abstract":"<div><div>The fabrication of electrode materials through heteroatom doping in carbon matrices serves as an effective approach to enhance the capacitive performance of supercapacitors. In this work, we designed a nitrogen‑molybdenum co-doped coconut shells porous activated biochar (CPB) via sequential carbonization, chemical activation, and doping processes. Comprehensive material characterization—including scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS)—revealed critical structure-property relationships. Nitrogen doping introduced electroactive pyridinic and pyrrolic nitrogen sites, significantly boosting pseudocapacitance. Meanwhile, molybdenum doping acted dualistically: it templated mesopore formation and generated molybdenum oxides, nitrides, and carbides within the carbon matrix during high-temperature treatment. These heterophases synergistically enhanced graphitic microcrystallite alignment, as evidenced by crystallographic analyses. Brunauer-Emmett-Teller (BET) measurements confirmed hierarchical porosity in CPB-KNM800, exhibiting a high specific surface area (1263.4 m²·g⁻¹) with 89 % micropore volume. This multiscale pore architecture facilitated rapid ion transport, as demonstrated by electrochemical testing. Electrochemical tests were performed under a three-electrode system (Hg/HgO), and the specific capacitance reached a maximum of 450 F g⁻¹ at a current density of 1 A g⁻¹, and exhibited outstanding cycling stability with 94 % capacity retention after 5000 cycles at a high current density of 10 A g⁻¹.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119507"},"PeriodicalIF":4.1,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PANI/Co3O4 composite material connected by coordination and hydrogen bonds for the elevation of rate charge/discharge capability","authors":"Fan-Ming Yang ,&nbsp;Jia-Hong Chen ,&nbsp;Guo-Wen He","doi":"10.1016/j.jelechem.2025.119481","DOIUrl":"10.1016/j.jelechem.2025.119481","url":null,"abstract":"<div><div>In this investigation, PANI/Co₃O₄ composite material with good rate charge/discharge capability was prepared through chemical grafting polyaniline (PANI) on the surface of homogeneous nucleated Co₃O₄. he physical properties were characterized by XRD, IR, XPS, SEM, EDS and N₂ adsorption/desorption measurements. The charge/discharge performance was evaluated in 6 M KOH electrolyte using a symmetrical two-electrode configuration. The results show that Co₃O₄ has a face-centered cubic crystal structure with both Co²⁺ and Co³⁺ ions present in its lattice. After the modification, PANI particles covered the surface of Co₃O₄. Furthermore, PANI was bonded to Co₃O₄ via coordination and hydrogen bonds. Compared with Co₃O₄, the PANI/Co₃O₄ composite exhibits a 5.2 % increase in N content. Moreover, N atoms exist in PANI/Co₃O₄ as -<span><math><msup><mi>NH</mi><mrow><mo>+</mo><mo>·</mo></mrow></msup></math></span>-, -NH- and = N- species. The PANI/Co₃O₄ composite has a specific surface area of 22 m²/g and a pore volume of 0.129 cm³/g, which are 1.57 times and 1.79 times those of pure Co₃O₄, respectively. In KOH electrolyte, the electrochemical behavior of PANI/Co₃O₄ is dominated by both surface control and ion diffusion processes. At a scan rate of 200 mV/s, the pseudocapacitive contribution of PANI/Co₃O₄ reaches 79.5 %, which is 3.2 % higher than that of Co₃O₄. Compared with Co₃O₄, PANI/Co₃O₄ displays a good rate charge/discharge performance. At 0.1 A/g, the energy density of PANI/Co₃O₄ is 6.7 Wh/kg. When the current density is enhanced to 5 A/g, the energy density retention is 43.4 %. This value is 1.18 times that of Co₃O₄, which is closely associated with the improved pore structure and the connection type between PANI and Co₃O₄.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119481"},"PeriodicalIF":4.1,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZnO decorated reduced graphene oxide (RGO-ZnO) nanocomposites synthesized via green Benedict's route for efficient water splitting applications and photocatalytic activity","authors":"V.N. Anjana ,&nbsp;Majo Joseph ,&nbsp;Sijo Francis ,&nbsp;Ebey P. Koshy ,&nbsp;Beena Mathew","doi":"10.1016/j.jelechem.2025.119528","DOIUrl":"10.1016/j.jelechem.2025.119528","url":null,"abstract":"<div><div>A novel, low-temperature and cost-effective synthesis route for the fabrication of nanocatalysts was successfully developed by modifying the Benedict's method. In this method, glucose employed as the reducing agent for the preparation of crystalline zinc oxide (ZnO) nanoparticles and its composite with reduced graphene oxide (RGO-ZnO). The structural and morphological features the synthesized materials were thoroughly investigated using UV–vis. Spectroscopy, X-ray diffraction technique (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The RGO-ZnO nanocomposite showed remarkable electrocatalytic performance, proving enhanced selectivity towards the hydrogen evolution reaction (HER) in acidic media and the oxygen evolution reaction (OER) in alkaline media. Electroanalytical techniques like cyclic voltammetry (CV), linear sweep voltammetry (LSV), and chronoamperometry, long-established the improved electron transport and higher catalytic activity, with onset potentials of 0.410 V (HER) and 1.614 V (OER) to deliver a current density of 10 mA cm⁻², supporting excellent stability for over 24 h. Additionally, the nanocomposites proved their high efficiency in the photocatalytic degradation of organic dyes under UV light. The RGO-ZnO composite achieved 87 % degradation of methylene blue and rhodamine B within 10 min and 12 min by 84 % within, significantly outperforming original ZnO. Thus, the modified Benedict's method is a promising strategy for fabricating multifunctional nanomaterials for sustainable energy and environmental remediation applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119528"},"PeriodicalIF":4.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hierarchical CoFe-LDH with nanoneedle-assembled architecture for selective and efficient electrocatalytic oxidation of ethylene glycol to formate","authors":"Xiaorui Zhang ,&nbsp;Xiaoqiang Li ,&nbsp;Xin Zhang ,&nbsp;Hao Lu ,&nbsp;Yonggang Sun ,&nbsp;Xiaoxiao Duan ,&nbsp;Yongsheng Ren","doi":"10.1016/j.jelechem.2025.119532","DOIUrl":"10.1016/j.jelechem.2025.119532","url":null,"abstract":"<div><div>The electrocatalytic conversion of polyethylene terephthalate (PET)-derived ethylene glycol (EG) into value-added chemicals such as formate and glycolate has significant economic and environmental benefits. However, the development of low-cost electrocatalysts for highly selective formate production remains challenging. This study employed an electrodeposition method to fabricate a non-noble CoFe-Layered Double Hydroxide (CoFe-LDH) catalyst for the ethylene glycol oxidation reaction (EGOR). By regulating the substrate and electrodeposition time, the CoFe-LDH/NF-10 min (NF-10) catalyst exhibited a double-layer capacitance (C_dl) of 0.92 mF cm⁻². During EGOR, this catalyst required only 1.44 V vs. RHE to achieve a current density of 10 mA cm⁻², which is significantly reduced by 240 mV compared with 1.68 V vs. RHE of oxygen evolution reaction (OER). The NF-10 demonstrated a low Tafel slope of 36.41 mV dec⁻¹ and low charge transfer resistance. At a current density of 10 mA cm⁻², the NF-10 catalyst enabled continuous electrooxidation of EG to formate, achieving a formate selectivity of 86.01 %, and a formate Faradaic efficiency (FE) of 49.67 %. This enhanced performance is attributed to the synergistic effect between Co and Fe in the bimetallic catalyst: High-valent CoOOH sites catalyze the formation of the CH₂OH-CO* intermediate, while Fe sites effectively promote the formation of CoOOH, suppress side reactions associated with glycolate formation, and facilitate the cleavage of C<img>C bonds. Consequently, the selectivity toward formate is significantly improved. This study provides novel insights for designing catalysts to enhance the electrocatalytic activity of polyols and regulate product selectivity.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119532"},"PeriodicalIF":4.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From nickel schiff base molecular precursor to NiO/rGO functional nanocomposite: A tailored route for high-performance supercapacitor electrodes","authors":"Yousra Boudad ,&nbsp;Mehdi Salmi ,&nbsp;Et-touhami Es-sebbar ,&nbsp;Thierry Roisnel ,&nbsp;Zaina Zaroual ,&nbsp;Abdelhakim Elmakssoudi ,&nbsp;Sanae El Ghachtouli","doi":"10.1016/j.jelechem.2025.119499","DOIUrl":"10.1016/j.jelechem.2025.119499","url":null,"abstract":"<div><div>Nickel oxide (NiO) nanoparticles were synthesized via thermal decomposition of a one-pot salicylideneamine nickel complex (Ni(L₁)₂), serving as a molecularly defined precursor. This coordination chemistry-based approach enables the direct transformation from complex to oxide, providing enhanced control over purity and particle size. The resulting NiO nanoparticles were uniformly incorporated onto reduced graphene oxide matrix (rGO) through a controlled calcination process at 450 °C. The resulting NiO/rGO composite demonstrated superior charge storage behavior relative to unmodified NiO. Specifically, it achieved a capacitance reaching 2850 F g⁻¹ at a current density of 1 A g⁻¹ in a 1 M KOH electrolyte, notably outperforming the 1796 F g⁻¹ obtained for pristine NiO. Moreover, the NiO/rGO electrode retained 84 % of its initial storage capability following 500 continuous charging and discharging cycles, demonstrating notable durability across cycles. Upon integration into a hybrid-type supercapacitor system, the NiO/rGO deposited on nickel foam functioned as the negative electrode, with activated carbon acting as the positive counterpart. This configuration achieved an energy density of 119.27 Wh kg⁻¹ alongside a power density of 750 W kg⁻¹. Even after 1000 cycles, the device preserved 75 % of its initial electrochemical performance, emphasizing the strong applicability of NiO/rGO composites as robust, high-efficiency electrodes for advanced energy storage applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119499"},"PeriodicalIF":4.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effect of the one-pot formation of MnO2-Fe-Nx/carbon nanocomposites on the bifunctional catalytic activity for the oxygen reduction and evolution reactions","authors":"Hye-min Kim ,&nbsp;Byung-chul Cha ,&nbsp;Jun Kang ,&nbsp;Yong-sup Yun ,&nbsp;Dae-wook Kim","doi":"10.1016/j.jelechem.2025.119533","DOIUrl":"10.1016/j.jelechem.2025.119533","url":null,"abstract":"<div><div>Rational design of bifunctional electrocatalysts is crucial for developing efficient and cost-effective materials for energy conversion and storage systems. In this study, we designed an organic-inorganic nanocomposite material by incorporating MnO₂, which primarily exhibits catalytic activity in the oxygen evolution reaction (OER), and Fe-Nₓ-incorporated carbon nanoparticles, which show excellent performance in the oxygen reduction reaction (ORR). This MnO₂–Fe-Nₓ/C (MO-FN/CP) nanocomposite was obtained via a one-pot approach involving the plasma discharge in an organic–inorganic mixed precursor. The synergistic effect imparted by the individual components in the resulting MO-FN/CP nanocomposite system resulted in a higher catalytic activity for both ORR and OER. Notably, the bifunctional MO-FN/CP system exhibited a narrow potential gap of 0.75 V between the ORR and OER, which represents a more favorable bifunctional characteristic compared to commercial catalysts (Pt/C and RuO₂). These findings propose a new approach for constructing composite systems as bifunctional catalysts for electrochemical energy applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119533"},"PeriodicalIF":4.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel electrochemical sensor based on reduced graphene oxide/10-phenylisoalloxazine for detection of persulfate","authors":"Tanushee,&nbsp;Devendra Kumar,&nbsp;Ram Singh","doi":"10.1016/j.jelechem.2025.119529","DOIUrl":"10.1016/j.jelechem.2025.119529","url":null,"abstract":"<div><div>A novel and precise electrochemical sensor utilizing a 10-phenylisoalloxazine (PI)/reduced graphene oxide (rGO) modified indium tin oxide (PI/rGO/ITO) electrode was developed and employed for the detection of persulfate (S₂O₈²⁻). In the present study, developed rGO was initially deposited onto ITO coated glass substrate using an electrophoretic deposition process. Then the rGO/ITO electrode was activated by coating PI using the drop-casting method. The techniques of FTIR, Raman spectroscopy, UV–vis, XRD, and scanning electron microscopy (SEM) were employed to characterize the components and electrode. The constructed sensor (PI/rGO/ITO), under all optimized conditions, exhibited exceptional sensitivity 36.29 μA(μM)⁻¹ cm⁻² with a low detection limit (LOD) of 0.19 μM and a linear correlation with S₂O₈²⁻concentration spanning from 1 μM to 80 μM. Furthermore, this newly developed sensor demonstrated impressive stability and sensitivity, effectively identifying S₂O₈²⁻ in real samples with commendable results.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119529"},"PeriodicalIF":4.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ruddlesden-popper Prn+1NinO3n+1 (n = 1, 2) oxides with in situ exsolved Ni nanoparticles as high-performance anodes for intermediated-temperature solid oxide fuel cells","authors":"Junling Meng ,&nbsp;Wan Huang ,&nbsp;Meijing Lu ,&nbsp;Jingxuan Cao ,&nbsp;Na Xu ,&nbsp;Lina Zhao","doi":"10.1016/j.jelechem.2025.119530","DOIUrl":"10.1016/j.jelechem.2025.119530","url":null,"abstract":"<div><div>In recent years, the in-situ exsolution of metal nanoparticles from the anodic oxide framework through reduction treatment has emerged as an effective strategy to boost electrochemical performance by increasing active sites and facilitating charge transfer. However, this approach is primarily restricted to simple perovskite structures. The development of novel and more efficient oxide matrices for the controlled desorption of high-density metal catalysts remains a significant challenge. In this study, Ruddlesden-Popper (RP) type layered oxides Pr₂NiO₄ and Pr₃Ni₂O₇ were innovatively employed as new primary matrices with the objective of achieving controllable exsolution of nickel metal nanoparticles by leveraging their unique layered architecture. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses confirmed that following reduction treatment, Ni nanoparticles were successfully exsolved in situ from the oxide surface, with a notably higher density of Ni nanoparticles observed for Pr₃Ni₂O₇. Electrochemical tests show that after 3 h of reduction at 850 °C, the cell with Pr₃Ni₂O₇ anode can achieve a peak power density of 969.7 mW cm⁻². Furthermore, when employed the studied compounds as anode materials, they showed negligible performance degradation after 100-h operation at 700 °C under 300 mA cm⁻² current density. Furthermore, SEM characterization provided additional verification of the experimental results. This research not only underscores the considerable potential of RP phase oxides as high-performance SOFC anode materials but also offers new insights into future developments in SOFC anodes by adjusting RP phase sequences to regulate nanoparticle density effectively.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119530"},"PeriodicalIF":4.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}