Journal of Electroanalytical Chemistry最新文献

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In situ synthesis of nickel-substituted zeolitic metal-organic framework on Ti3C2 MXene for enhanced electrocatalytic sensing of L-tryptophan 在ti3c2mxene上原位合成镍取代的沸石金属-有机骨架以增强l-色氨酸的电催化传感
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-24 DOI: 10.1016/j.jelechem.2025.119215
Seyyed Mehdi Khoshfetrat
{"title":"In situ synthesis of nickel-substituted zeolitic metal-organic framework on Ti3C2 MXene for enhanced electrocatalytic sensing of L-tryptophan","authors":"Seyyed Mehdi Khoshfetrat","doi":"10.1016/j.jelechem.2025.119215","DOIUrl":"10.1016/j.jelechem.2025.119215","url":null,"abstract":"<div><div>Herein, in situ synthesis of a nickel-substituted zeolitic metal-organic framework, Ni-ZIF-8, (referred to NZM) on Ti<sub>3</sub>C<sub>2</sub> MXene enhanced the functionalities for the electrocatalyst sensing of L-tryptophan (L-Trp). The exceptional electrical conductivity of the Ti<sub>3</sub>C<sub>2</sub> MXene complements the high porosity of NZM, resulting in synergistic effects that improve charge transport and stability. The dual functionality of NZM/Ti<sub>3</sub>C<sub>2</sub> enhanced their high electrical conductivity through delamination and improved accessibility of the electrolyte to the surface of the active materials. Furthermore, the incorporation of Ni<sup>2+</sup> and coordination of 2-methylimidazole (2-MeIM) as a nitrogen source with enhanced electronegativity improved the interaction between the NZM and the L-Trp molecules. The proposed electrode exhibited remarkable sensitivity and selectivity for the analysis of L-Trp, providing a broad dynamic range (5 nM-200 μM) and a low detection limit of 0.1 nM. In addition, the prepared sensor was successfully used to monitor L-Trp in a complex milk matrix.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"992 ","pages":"Article 119215"},"PeriodicalIF":4.1,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138269","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}
引用次数: 0
Effect of fluorine doping on the electrocatalytic properties of Nb2O5 for H2O2 electrogeneration 氟掺杂对Nb2O5电催化生成H2O2性能的影响
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-23 DOI: 10.1016/j.jelechem.2025.119231
Aline B. Trench, João Paulo C. Moura, Caio Machado Fernandes, Mauro C. Santos
{"title":"Effect of fluorine doping on the electrocatalytic properties of Nb2O5 for H2O2 electrogeneration","authors":"Aline B. Trench,&nbsp;João Paulo C. Moura,&nbsp;Caio Machado Fernandes,&nbsp;Mauro C. Santos","doi":"10.1016/j.jelechem.2025.119231","DOIUrl":"10.1016/j.jelechem.2025.119231","url":null,"abstract":"<div><div>The oxygen reduction reaction (ORR) via the 2-electron mechanism is an efficient way to produce hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) under mild conditions. This study examines the modification of Vulcan XC72 carbon with fluorine (F)-doped niobium oxide (Nb<sub>2</sub>O<sub>5</sub>) nanoparticles at varying molar ratios (0, 0.005, 0.01, 0.02). The F-doped Nb<sub>2</sub>O<sub>5</sub> nanoparticles were synthesized using the oxidizing peroxide method and then incorporated into Vulcan XC72 carbon via impregnation. Characterization techniques included X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), contact angle measurements, and X-ray photoelectron spectroscopy (XPS). Electrochemical evaluation using the rotating ring disk electrode method revealed that Vulcan XC72 modified with 1.0 % F-doped Nb<sub>2</sub>O<sub>5</sub> exhibited the best ORR performance. When used as a gas diffusion electrode, this electrocatalyst produced more H<sub>2</sub>O<sub>2</sub> at all applied potentials than the pure and Nb<sub>2</sub>O<sub>5</sub>-modified Vulcan XC72 carbon. At potentials of −0.7 V and −1.3 V, the proposed electrocatalyst achieved H<sub>2</sub>O<sub>2</sub> yields 65 % and 98 % higher than the Nb<sub>2</sub>O<sub>5</sub>-modified electrocatalyst. Furthermore, it presented lower energy consumption and higher current efficiency than the other electrocatalysts compared in this study. The enhanced performance is attributed to F doping, which increased Nb<sub>2</sub>O<sub>5</sub> lattice distortion and disorder, improving electron availability for ORR. Additionally, F-doped electrocatalysts exhibited more oxygenated species and greater hydrophilicity, facilitating O<sub>2</sub> adsorption, transport, and electron transfer. These properties significantly enhanced H<sub>2</sub>O<sub>2</sub> electrogeneration efficiency while reducing energy consumption.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"992 ","pages":"Article 119231"},"PeriodicalIF":4.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147200","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}
引用次数: 0
Corrigendum to “Defects-engineered build in a Molecule-Based trinuclear iron cluster material as anode materials for lithium-ion batteries” [J. Electroanal. Chem. 980 (2025) 118990] “分子基三核铁团簇材料作为锂离子电池负极材料的缺陷工程构建”[J]。Electroanal。化学。980 (2025)118990]
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-23 DOI: 10.1016/j.jelechem.2025.119200
Qing Zeng , Hualing Tian , Yang Zhang , Yanjun Cai , Qingrong Kong , Zhi Su
{"title":"Corrigendum to “Defects-engineered build in a Molecule-Based trinuclear iron cluster material as anode materials for lithium-ion batteries” [J. Electroanal. Chem. 980 (2025) 118990]","authors":"Qing Zeng ,&nbsp;Hualing Tian ,&nbsp;Yang Zhang ,&nbsp;Yanjun Cai ,&nbsp;Qingrong Kong ,&nbsp;Zhi Su","doi":"10.1016/j.jelechem.2025.119200","DOIUrl":"10.1016/j.jelechem.2025.119200","url":null,"abstract":"","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"990 ","pages":"Article 119200"},"PeriodicalIF":4.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167894","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}
引用次数: 0
A 3D coral-like Co3O4@CoMoO4 for high-performance supercapacitors with superior energy density and cycling stability 3D珊瑚状Co3O4@CoMoO4,用于高性能超级电容器,具有优越的能量密度和循环稳定性
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-23 DOI: 10.1016/j.jelechem.2025.119233
Yongfa Long , Yongda Tan , Zhentao Liu , Linsong Li , Huixin Jin , Meilong Wang
{"title":"A 3D coral-like Co3O4@CoMoO4 for high-performance supercapacitors with superior energy density and cycling stability","authors":"Yongfa Long ,&nbsp;Yongda Tan ,&nbsp;Zhentao Liu ,&nbsp;Linsong Li ,&nbsp;Huixin Jin ,&nbsp;Meilong Wang","doi":"10.1016/j.jelechem.2025.119233","DOIUrl":"10.1016/j.jelechem.2025.119233","url":null,"abstract":"<div><div>In this study, the 3D coral-like layered structure of Co<sub>3</sub>O<sub>4</sub>@CoMoO<sub>4</sub>, synthesized by the hydrothermal method, plays a crucial role in its excellent electrochemical properties. This 3D coral-like structure, enriched with oxygen vacancies, mesopores, and defect sites, enables efficient charge storage by shortening the ion/electron transport path and exposing the active sites. The unique coral-like structure between Co<sub>3</sub>O<sub>4</sub> and CoMoO<sub>4</sub> enhances the electron conductivity and stabilizes the interfacial redox reactions. In particular, the specific capacitance of the Co<sub>3</sub>O<sub>4</sub>@CoMoO<sub>4</sub> electrode was found to be as high as 2370.8 F g<sup>−1</sup> at 1 A g<sup>−1</sup>. The prepared Co<sub>3</sub>O<sub>4</sub>@CoMoO<sub>4</sub>//AC exhibited an energy density of 43.75 W h kg<sup>−1</sup> at a power density of 700 W kg<sup>−1</sup>. Furthermore, the specific capacitance retention of Co<sub>3</sub>O<sub>4</sub>@CoMoO<sub>4</sub>//AC was maintained at 92.19 % after 5000 cycles at 3 A g<sup>−1</sup>. This work demonstrates a viable strategy to overcome the inherent limitations of transition metal oxides, which has potential for application in high-power, long-life energy storage systems.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"992 ","pages":"Article 119233"},"PeriodicalIF":4.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138228","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}
引用次数: 0
Dry coating and self-combustion reaction strategy for lithium residual removal and performance enhancement of Ni-rich oxide cathodes 富镍氧化物阴极干涂及自燃反应去除锂残馀及提高性能策略
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-22 DOI: 10.1016/j.jelechem.2025.119209
Phan Phuoc Hien , Pham Ngoc Thao , Thi Bich Thuy Hoang , Van-Chuong Ho
{"title":"Dry coating and self-combustion reaction strategy for lithium residual removal and performance enhancement of Ni-rich oxide cathodes","authors":"Phan Phuoc Hien ,&nbsp;Pham Ngoc Thao ,&nbsp;Thi Bich Thuy Hoang ,&nbsp;Van-Chuong Ho","doi":"10.1016/j.jelechem.2025.119209","DOIUrl":"10.1016/j.jelechem.2025.119209","url":null,"abstract":"<div><div>Dry coating application for Ni-rich layered oxide cathode materials is one attractive approach to improving the performance of rechargeable batteries due to their avoiding moisture sensitivity, damage to the layered structure, and environmental issues. However, surface impurities are still severe, causing capacity fading and poor electrochemical cycle life. Herein, we propose a simple dry aluminum oxide surface coating to build a stable surface structure and simultaneously effectively eliminate surface impurities. An exothermic reaction generates a high energy of 23,802 kJ/kg (at 300 °C) to remove LiOH and Li<sub>2</sub>CO<sub>3</sub> surface impurities, and a lithium quantity from impurities transferred to the aluminum oxide forms a stability-conducive LiAlO<sub>2</sub> coating layer. Accordingly, the LiAlO<sub>2</sub> coating on Ni-rich oxide layered cathode materials demonstrates the high electrochemical performance of lithium-ion batteries. The results highlight a cost-effective and scalable coating process for cathode active materials, paving the way for large-scale cathode production in lithium-ion batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"991 ","pages":"Article 119209"},"PeriodicalIF":4.1,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116775","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}
引用次数: 0
In-situ synthesized PtZnCu nanoalloy on carbon cloth for ultrasensitive electrochemical ammonia-nitrogen detection 碳布原位合成PtZnCu纳米合金用于超灵敏电化学氨氮检测
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-21 DOI: 10.1016/j.jelechem.2025.119211
Guanda Wang , Guangfeng Zhou , Enji Li , Lan Ding , Dong He , Chun Zhao , Hui Suo
{"title":"In-situ synthesized PtZnCu nanoalloy on carbon cloth for ultrasensitive electrochemical ammonia-nitrogen detection","authors":"Guanda Wang ,&nbsp;Guangfeng Zhou ,&nbsp;Enji Li ,&nbsp;Lan Ding ,&nbsp;Dong He ,&nbsp;Chun Zhao ,&nbsp;Hui Suo","doi":"10.1016/j.jelechem.2025.119211","DOIUrl":"10.1016/j.jelechem.2025.119211","url":null,"abstract":"<div><div>Nanoalloy materials showed excellent, sensitive properties in the research field of ammonia‑nitrogen electrochemical sensors, which have been widely used by researchers. The PtZnCu ternary nanoalloy electrode based on a carbon cloth substrate (PtZnCu-CC) was prepared using one-step electrodeposition. The characterization results showed that the alloying of Zn, Cu and Pt regulated the electronic structure of Pt and enhanced the electrocatalytic oxidation capacity of Pt for ammonia‑nitrogen. Meanwhile, it was proved by density functional theory (DFT) that PtZnCu nanoalloy fully inherited the advantages of PtCu and PtZn nanoalloy, which not only enhanced the adsorption capacity of ammonia but also balanced the free energy of each step. Finally, the sensitivity of the whole electrode to ammonia‑nitrogen was improved. The linear detection range of the sensor based on PtZnCu-CC electrode for ammonia‑nitrogen was 0.5–1000 μM, the sensitivity was 23.9 μA μM<sup>−1</sup> cm<sup>−2</sup>, and the limit of detection (LOD) was 8.37 nM, which showed satisfactory repeatability, anti-interference and stability. This work provided a specific direction for designing high-performance electrochemical sensors.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"991 ","pages":"Article 119211"},"PeriodicalIF":4.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123181","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}
引用次数: 0
Highly dispersed ZIF-67-derived co-NC confined in carbon pores enables efficient oxygen reduction in alkaline media 高度分散的zif -67衍生的co-NC被限制在碳孔中,可以在碱性介质中有效地还原氧气
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-20 DOI: 10.1016/j.jelechem.2025.119212
Run Cai , Jiahao Jiang , Pengfei Diao , Zihan Wei , Change Yao , Bosheng Zhou , Huijuan Zhang , Wenwen Liu , Zhong Ma
{"title":"Highly dispersed ZIF-67-derived co-NC confined in carbon pores enables efficient oxygen reduction in alkaline media","authors":"Run Cai ,&nbsp;Jiahao Jiang ,&nbsp;Pengfei Diao ,&nbsp;Zihan Wei ,&nbsp;Change Yao ,&nbsp;Bosheng Zhou ,&nbsp;Huijuan Zhang ,&nbsp;Wenwen Liu ,&nbsp;Zhong Ma","doi":"10.1016/j.jelechem.2025.119212","DOIUrl":"10.1016/j.jelechem.2025.119212","url":null,"abstract":"<div><div>It is crucial to develop low-cost and efficient electrocatalysts to facilitate oxygen reduction reaction (ORR) and transition metals incorporated into nitrogen-doped carbon matrices (M-NC) catalysts are regarded as a potential candidate to substitute platinum-based electrocatalyst. However, there is still a great challenge in real activity and stability, compared to Pt-based electrocatalysts, for large-scale applications. An effective way to improve the ORR performance for this category of single-atom catalysts is to increase the density of active sites. In this work, therefore, the highly dispersed ZIF-67-derived Co-NC confined in carbon pores electrocatalysts are synthesized by impregnating ZIF-67 precursors into the nanopores of Ketjenblack EC-600JD (KB) resulting in the in-situ growing of small crystals in the pores followed by the high temperature pyrolysis. The as-prepared CoNC-700@C electrocatalyst exhibits excellent ORR performance in alkaline media with an onset potential of 967 mV and a half-wave potential of 892 mV (vs. RHE), which is much higher than that of the commercial Pt/C catalyst. It is inferred that the excellent ORR activity of CoNC-700@C mainly results from the increased density and also enhanced dispersion of active sites due to the confinement effect offered by the pores of KB. This study also provides a simple and effective method to increase the density of active sites for single-atom category materials.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"989 ","pages":"Article 119212"},"PeriodicalIF":4.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115258","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}
引用次数: 0
Nanoarchitectonics of fully interpenetrating polymers with low-temperature pyrolysis modulation for double layer capacitor 低温热解调制双层电容器中完全互穿聚合物的纳米结构
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-20 DOI: 10.1016/j.jelechem.2025.119213
Rui Gao , Zu-Tao Pan , Zhi-Cai Wang , Ling-Bin Kong
{"title":"Nanoarchitectonics of fully interpenetrating polymers with low-temperature pyrolysis modulation for double layer capacitor","authors":"Rui Gao ,&nbsp;Zu-Tao Pan ,&nbsp;Zhi-Cai Wang ,&nbsp;Ling-Bin Kong","doi":"10.1016/j.jelechem.2025.119213","DOIUrl":"10.1016/j.jelechem.2025.119213","url":null,"abstract":"<div><div>Carbonization temperature controllable as a key bridge between precursor structure and electrochemical performance. This work investigates a fully interpenetrating polymer network precursor constructed with two molecular chains (o-Phenylenediamine-formaldehyde/potassium polyacrylate), a low-temperature pyrolysis strategy for systematically study the influence of direct carbonization temperature (500–800 °C) on the structural evolution and electrochemical properties of carbon materials derived from it, and obtained a series of porous carbon-based materials. By discussing in detail the physical characteristics of each sample such as morphology and structure, sample elements and pore structure, high-performance carbon-based materials with Sub nanometer micropores (∼0.6 nm) and mesopores coexisted were screened, sub nanopores can shorten ion diffusion pathways and provide abundant charge storage sites. When the carbonization temperature is at 700 °C, the carbon material C-IPN700 has a microporous specific surface area of up to 1168.268 m<sup>2</sup> g<sup>−1</sup> and possesses excellent storage capacity of 358 F g<sup>−1</sup> at 0.5 A g<sup>−1</sup>, which is comparable to the optimal specific capacitance of IPNs-derived carbon materials used so far for double-decker capacitors, and after 9000 long cycle tests, the coulomb efficiency is close to 100%. C-IPN shows high energy density of 9.72 Wh Kg<sup>−1</sup> at 125 W Kg<sup>−1</sup> power density when used as a symmetric device. For the field of bilayers, C-IPN700 is a potential low-cost, easy-to-prepare low-temperature pyrolyzed carbon material with high energy storage efficiency.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"991 ","pages":"Article 119213"},"PeriodicalIF":4.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123183","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}
引用次数: 0
A-site cation deficiency-based LSCFN cathode achieving electrochemical performance enhancement in GDC-based solid oxide fuel cells 基于a位阳离子缺陷的LSCFN阴极在gdc基固体氧化物燃料电池中实现电化学性能增强
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-20 DOI: 10.1016/j.jelechem.2025.119214
Che Wang , Botao Zhou , Na Xu , Zhanlin Xu
{"title":"A-site cation deficiency-based LSCFN cathode achieving electrochemical performance enhancement in GDC-based solid oxide fuel cells","authors":"Che Wang ,&nbsp;Botao Zhou ,&nbsp;Na Xu ,&nbsp;Zhanlin Xu","doi":"10.1016/j.jelechem.2025.119214","DOIUrl":"10.1016/j.jelechem.2025.119214","url":null,"abstract":"<div><div>To address the challenge of sluggish oxygen reduction reaction (ORR) kinetics in intermediate-temperature solid oxide fuel cells (SOFCs), this study employs an A-site deficiency engineering strategy to design a series of ABO<sub>3</sub> perovskite cathode materials: (La<sub>0.6</sub>Sr<sub>0.4</sub>)<sub>x</sub>Co<sub>0.2</sub>Fe<sub>0.7</sub>Nb<sub>0.1</sub>O<sub>3-δ</sub>(LSCFN, x = 1, 0.95, 0.90, 0.85), The structure-property relationship between defect concentration and electrochemical performance in Gd<sub>0.1</sub>Ce<sub>0.9</sub>O<sub>1.95</sub> (GDC) based oxygen-ion-conducting SOFCs (O-SOFCs) is systematically investigated. The A-site deficiency significantly enhances oxygen ion conductivity and improves the ORR activity of SOFC cathodes through synergistic regulation of oxygen vacancy concentration and B-site metal oxidation states. When the x value reaches 10 %, (LS)<sub>0.90</sub>CFN exhibits excellent chemical compatibility with GDC and an increased oxygen vacancy concentration compared to the stoichiometric sample. Electrochemical impedance spectroscopy (EIS) of symmetric cells reveals that (LS)<sub>0.90</sub>CFN|GDC|(LS)<sub>0.90</sub>CFN achieves the lowest polarization resistance (R<sub>p</sub> = 0.037<!--> <!-->Ω·cm<sup>2</sup>) at 800 °C, with minimal impedance increase after 50 h of operation. Distribution of relaxation times (DRT) analysis confirms optimized oxygen adsorption-dissociation processes and rapid surface oxygen exchange kinetics. A full cell Ni-GDC|GDC|(LS)<sub>0.90</sub>CFN) demonstrates a peak power density of 1.130<!--> <!-->W/cm<sup>2</sup> at 700 °C. This work highlights the effectiveness of defect engineering in synergistically enhancing oxygen-ion conductivity and electrocatalytic activity of perovskite cathodes, offering novel theoretical and technical insights for high-performance intermediate-temperature SOFC cathode design.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"991 ","pages":"Article 119214"},"PeriodicalIF":4.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116849","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}
引用次数: 0
Corrigendum to “Transition metal-assisted layer-by-layer binder free deposition for high-performance energy storage devices” [J. Electroanal. Chem. 975 (2024) 118766] “用于高性能储能器件的过渡金属辅助无粘结层沉积”的勘误[J]。Electroanal。化学。975 (2024)118766]
IF 4.1 3区 化学
Journal of Electroanalytical Chemistry Pub Date : 2025-05-19 DOI: 10.1016/j.jelechem.2025.119184
Muhammad Zahir Iqbal , Ayesha Zakir , Maira Javed , Rashid Ali , Abhinav Kumar , H.H. Hegazy , A.A. Alahmari
{"title":"Corrigendum to “Transition metal-assisted layer-by-layer binder free deposition for high-performance energy storage devices” [J. Electroanal. Chem. 975 (2024) 118766]","authors":"Muhammad Zahir Iqbal ,&nbsp;Ayesha Zakir ,&nbsp;Maira Javed ,&nbsp;Rashid Ali ,&nbsp;Abhinav Kumar ,&nbsp;H.H. Hegazy ,&nbsp;A.A. Alahmari","doi":"10.1016/j.jelechem.2025.119184","DOIUrl":"10.1016/j.jelechem.2025.119184","url":null,"abstract":"","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"989 ","pages":"Article 119184"},"PeriodicalIF":4.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137902","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}
引用次数: 0
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