Journal of Solid State Electrochemistry最新文献_第5页

Electrochemical goniometry: keystone reactivity at the three-phase boundary 电化学测角：三相边界的基石反应性

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-08-06 DOI: 10.1007/s10008-024-05932-4

Thomas S. Varley, Nathan S. Lawrence, Jay D. Wadhawan

{"title":"Electrochemical goniometry: keystone reactivity at the three-phase boundary","authors":"Thomas S. Varley, Nathan S. Lawrence, Jay D. Wadhawan","doi":"10.1007/s10008-024-05932-4","DOIUrl":"https://doi.org/10.1007/s10008-024-05932-4","url":null,"abstract":"Contact angles of liquid, spherical cap droplets immobilised on an electrode surface and bathed by a fluid are important, quantifiable measures of the liquid/fluid interfacial tension. Optical goniometry, even if computer assisted, suffers when the contact angle is 10° or less. In this work, an alternative method of measurement is considered: electrochemical techniques (voltammetry and chronoamperometry), which rely on the transport of material from within the droplet to the conductive surface. As a result of the reactions that take place at the triple phase boundary, these are demonstrated to provide information on the size and the shape of the droplet, including its contact angle, for the cases when the droplets have a redox analyte and either have a supporting electrolyte, or not. The voltammetric behaviour is seen to change from exhaustive, thin film characteristics, to quasi-steady-state signals as the droplet becomes bigger, or the scan rate becomes larger, or diffusion of the redox material inside the droplet becomes slower. One of the surprising outcomes is that there is a zone of planar diffusion only in the case of the supported droplets, with both the droplet size and its contact angle determining whether this is seen at conventional combinations of scan rates and diffusion coefficients. Experimental data are provided which emphasize key features pertaining to the nature of the redox system and illustrate the facile nature of the contact angle estimation process, albeit to within 10% uncertainty.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946680","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}

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Sintering composite electrolytes of yttria-doped bismuth oxide and yttria-stabilized zirconia for solid oxide fuel cells 用于固体氧化物燃料电池的掺钇氧化铋和钇稳定氧化锆烧结复合电解质

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-08-02 DOI: 10.1007/s10008-024-06030-1

Yuling Xia, Lijie Zhang, Kang Zhu, Binze Zhang, Changrong Xia

引用次数: 0

Low-temperature methane oxidation: Harnessing electrochemically induced oxygen ions for enhanced Pd nano-catalyst performance 低温甲烷氧化：利用电化学诱导的氧离子提高钯纳米催化剂的性能

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-08-02 DOI: 10.1007/s10008-024-06019-w

Najmeh Ahledel, Martin Couillard, Elena A. Baranova

{"title":"Low-temperature methane oxidation: Harnessing electrochemically induced oxygen ions for enhanced Pd nano-catalyst performance","authors":"Najmeh Ahledel, Martin Couillard, Elena A. Baranova","doi":"10.1007/s10008-024-06019-w","DOIUrl":"https://doi.org/10.1007/s10008-024-06019-w","url":null,"abstract":"The electrochemical promotion of nano-sized Pd catalysis deposited on yttria-stabilized zirconia (YSZ) solid electrolyte (Pd/YSZ) was studied for complete methane oxidation in excess of oxygen. The as-prepared and used Pd/YSZ catalysts were characterized using TEM, SEM, and XRD techniques. In this study, for the first time, we demonstrated the electrochemical promotion of complete methane oxidation over Pd at temperatures as low as 300 °C. The electrochemical promotion of Pd/YSZ was carried out at different cathodic and anodic polarization values in excess of oxygen (pO2 = 6 kPa) in temperatures ranging from 300—420 °C. Upon anodic and cathodic polarization the highest rate increase of 17.7 and 1.4 was observed at 420 °C, respectively. Chronoamperometric rate transients showed continuous rate increase with the polarization time indicating continuous activation of Pd/YSZ and formation of PdOx active phase. When polarization was stopped the reaction rate slowly returned to its initial state showing the persistent EPOC, i.e., the open-circuit reaction rate after polarization was enhanced compared to initial open-circuit conditions (γ = 1.6 after 29 h of polarization). The changes occurring in the Pd catalyst during the polarization were studied using electrochemical techniques, such as cyclic voltammetry, steady-state polarization and electrochemical impedance spectroscopy (EIS).<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880717","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}

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Ultra‑low‑dose Nb2O5 coating promotes electrochemical kinetics and rate capability of Ni-rich oxide cathode 超低剂量 Nb2O5 涂层促进了富镍氧化物阴极的电化学动力学和速率能力

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-08-01 DOI: 10.1007/s10008-024-06023-0

Xiaozheng Zhou, Anqi Chen, Chengwei Lu, Ruojian Ma, Ruyi Fang, Yongping Gan, Guoguang Wang, Jianping Xu, Qinzhong Mao, Xiaoxiao Lu, Xinhui Xia, Yang Xia

{"title":"Ultra‑low‑dose Nb2O5 coating promotes electrochemical kinetics and rate capability of Ni-rich oxide cathode","authors":"Xiaozheng Zhou, Anqi Chen, Chengwei Lu, Ruojian Ma, Ruyi Fang, Yongping Gan, Guoguang Wang, Jianping Xu, Qinzhong Mao, Xiaoxiao Lu, Xinhui Xia, Yang Xia","doi":"10.1007/s10008-024-06023-0","DOIUrl":"https://doi.org/10.1007/s10008-024-06023-0","url":null,"abstract":"LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode material is prized in the electric vehicles (EVs) industry for its high capacity and voltage during operation. However, the high residual alkali content and inferior ionic conductivity of Ni‑rich cathode materials are the intractable obstacles to the large-scale commercial application for a long time. Herein, a feasible Nb2O5 coating strategy is proposed to eliminate residual alkali along with constructing high Li+ conductive coating layer on NCM811 cathode materials surface. Impressively, 0.3% Nb2O5‑coated NCM811 cathode exhibits superior rate capability (146.4 mA h g−1@400 mA g−1) and remarkable rate cyclic stability (188.5 mA h g−1 after 100 cycles with capacity retention of 94.8%). On the one hand, a small quantity of Nb2O5 coating on NCM811 surface can react with surface residual alkali to promote the transformation of low electronic conductivity surface residual alkali into the Li+ conductor of LiNbO3 coating layer, enhancing Li+ de-intercalation kinetics and rate performance. On the other hand, excessive Nb2O5 coating may introduce Nb5+ into the lattice of NCM811, acting as pivotal components within the Li+ layer, which effectively suppresses the H2 ↔ H3 phase transition, contributing to long-term cyclic stability. This work paves a new path for the rational design and facile coating of Ni-rich oxide cathode materials with reinforced structure stability and boosted rate capability in high‑energy‑density lithium-ion batteries.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870793","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}

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Central composite design as a tool to investigate the electrocatalytic activity of thermally treated nitrogen-doped graphene for the oxygen reduction reaction 以中心复合设计为工具研究热处理氮掺杂石墨烯在氧还原反应中的电催化活性

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-31 DOI: 10.1007/s10008-024-06022-1

Raquel A. C. Lima, Aluísio J. C. Pinto Júnior, Leandro A. Pocrifka, Ermete Antolini, Raimundo R. Passos

{"title":"Central composite design as a tool to investigate the electrocatalytic activity of thermally treated nitrogen-doped graphene for the oxygen reduction reaction","authors":"Raquel A. C. Lima, Aluísio J. C. Pinto Júnior, Leandro A. Pocrifka, Ermete Antolini, Raimundo R. Passos","doi":"10.1007/s10008-024-06022-1","DOIUrl":"https://doi.org/10.1007/s10008-024-06022-1","url":null,"abstract":"Nitrogen-doped graphene (N-graphene) electrocatalysts prepared using a thermal treatment procedure were systematically investigated for the oxygen reduction reaction (ORR). A central composite experimental design (CCD) was adopted to evaluate the effect of the thermal treatment temperature (from 660 to 940 °C) and mass ratio of graphene and urea precursors (from 1:3 to 1:17) on the electron transfer number (n) of the ORR in alkaline medium. No interaction effect was observed between the two factors, and only temperature had a positive and statistically-significant effect on the n value. XPS results indicated that the improvement of the electrocatalytic activity of N-graphene with the increase of doping temperature cannot be associated with the N configuration or the overall N content, but is related to the formation of defects on graphene. This investigation represents an important step in the adoption of multivariate experimentation for the exploration of metal-free electrocatalysts for fuel cell cathodes.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870786","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}

引用次数: 0

Density functional theory study on structure information and modification design of solid polymer electrolytes containing ester-thioether groups 含酯硫醚基团的固体聚合物电解质结构信息和改性设计的密度泛函理论研究

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-31 DOI: 10.1007/s10008-024-06025-y

Zirun Wang, Jie Ren, Yuehua Zhao, Ying Lin, Ruobing Lang, Xiumei Pan

{"title":"Density functional theory study on structure information and modification design of solid polymer electrolytes containing ester-thioether groups","authors":"Zirun Wang, Jie Ren, Yuehua Zhao, Ying Lin, Ruobing Lang, Xiumei Pan","doi":"10.1007/s10008-024-06025-y","DOIUrl":"https://doi.org/10.1007/s10008-024-06025-y","url":null,"abstract":"Poly (ethylene glycol dimethacrylate-1,2-ethanedithiol) (P(EDGMA-EDT)) and poly (ethylene glycol dimethacrylate-3,6-dioxy-1,8-octanedithiol) (P(EDGMA-DODT)) are excellent solid polymer electrolytes synthesized experimentally. The coordination structure, redox properties, and modification design of P(EDGMA-EDT)-LiTFSI and P(EDGMA-DODT)-LiTFSI are investigated by density functional theory. The theoretical simulation of infrared spectra and the coordination structure information show that the ester carbonyl group in P(EDGMA-EDT) and the ester carbonyl group and ether oxygen in P(EDGMA-DODT) interact with Li+ ions. Li+ ion coordination numbers in these two electrolytes are 4 and 5; thioether and ester groups in polymers are their redox active sites, respectively. Modified sulfone oxide P(EDGMA-EDT)2-SO2 and P(EDGMA-DODT)2-SO2 cannot only maintain the reduction stability but also greatly improve the oxidation potential. LiPF6, LiDFBOP, and LiBF3Cl are good candidates for sulfone-based polymers. The electron-withdrawing groups (− 4Br, − 4Cl, − 4F, − NO2, and − CN) substitution can improve the oxidation potential of P(EDGMA-EDT) but have little effect on the oxidation potential of P(EDGMA-DODT) and reduce the reduction stability of both polymers. These findings provide theoretical guidance for the coordination structure as well as the molecular design of solid electrolytes containing ester groups and thioether.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870785","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}

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Electrochemical study of the Cu2+ sensor based on ZIF-67/MWCNTs/Nafion 基于 ZIF-67/MWCNTs/Nafion 的 Cu2+ 传感器的电化学研究

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-30 DOI: 10.1007/s10008-024-06017-y

Qiang Li, Lifeng Ding, Yuru Song, Qi Wang, Jie Zhang, Zhengwei Song, Shengling Li, Jiayu Liu, Xin Zhang

{"title":"Electrochemical study of the Cu2+ sensor based on ZIF-67/MWCNTs/Nafion","authors":"Qiang Li, Lifeng Ding, Yuru Song, Qi Wang, Jie Zhang, Zhengwei Song, Shengling Li, Jiayu Liu, Xin Zhang","doi":"10.1007/s10008-024-06017-y","DOIUrl":"https://doi.org/10.1007/s10008-024-06017-y","url":null,"abstract":"In this work, a ZIF-67/MWCNTs/Nafion sensor platform was constructed based on the good adsorption capacity of ZIF-67, the electrical conductivity of multiwalled carbon nanotubes (MWCNTs), and the excellent chemical stability of Nafion for the detection of Cu2+ in water. Meanwhile, the modified materials were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), BET-specific surface area test, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Fourier-transform infrared spectrometry (FTIR). Cyclic voltammetry (CV), electrochemical impedance (EIS), and square wave stripping voltammetry (SWSV) electrochemical methods were used to perform applied test studies on ZIF-67/MWCNTs/Nafion/GCE. The results show that ZIF-67/MWCNTs/Nafion/GCE has high sensitivity (57.5 μA/μM) and a low limit of detection (15.0 nM) for the electrochemical detection of Cu2+ ions in an electrochemical sensing system. It has high adsorption selectivity for Cu2+, and the recovery of Cu2+ in real water reached 98.6–103%. The modified electrode has good repeatability, reproducibility, anti-interference, and stability, which means this sensing platform can be practically applied to the detection of domestic water.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870788","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}

引用次数: 0

Patterned Pt-TiO2 coated flow field plates in PEM water electrolyzers for hydrogen production 用于 PEM 水电解槽制氢的图案化 Pt-TiO2 涂层流场板

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-30 DOI: 10.1007/s10008-024-06016-z

Sri Harhsa Swarna Kumar V, Balaji R, Lakshman Neelakantan, Ramya K

{"title":"Patterned Pt-TiO2 coated flow field plates in PEM water electrolyzers for hydrogen production","authors":"Sri Harhsa Swarna Kumar V, Balaji R, Lakshman Neelakantan, Ramya K","doi":"10.1007/s10008-024-06016-z","DOIUrl":"https://doi.org/10.1007/s10008-024-06016-z","url":null,"abstract":"This work investigates the use of Ti6Al4V as flow field plates in PEM-based electrolyzer stacks, utilizing its good corrosion resistance and high mechanical strength. The study explores the development of durable conductive coatings on Ti6Al4V surfaces. The coated surfaces are characterized by X-ray diffraction (XRD), showing the characteristic peaks of Pt deposited and the presence of Pt, PtO2, and TiO2 after thermal oxidation. Field emission scanning electron microscopy reveals a uniform Pt coating on Ti6Al4V with a thickness of 2–3 µm. Potentiodynamic studies revealed improved corrosion resistance with a corrosion current density of 2.1 µA·cm⁻2 in Ti6Al4V-PA-AD-TO compared to Ti6Al4V. Stability under 2 V vs. SHE for 5 h in a PEM water electrolyzer anodic environment is demonstrated, along with an evaluation of performance in a PEM electrolyzer single cell. The durability of the developed coating is assessed over 100 h in a single-cell setup, offering insights into cost-effective PEM-based electrolyzer stacks. The reduction of reliance on precious metals and the enhancement of durability provide a promising method for achieving economic viability in the production of hydrogen through water electrolysis.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870787","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}

引用次数: 0

Electrochemical additive manufacturing of copper parts: printed material properties vs. traditionally deposited 铜零件的电化学增材制造：打印材料特性与传统沉积材料的对比

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-27 DOI: 10.1007/s10008-024-06026-x

Dmytro Uschpovskiy, Roman Babchuk, Mykhailo Kotyk, Viktoria Vorobyova, Georgii Vasyliev

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Eco-friendly synthesis of gold nanoparticles onto glassy carbon electrode and its application to DNA biosensor 在玻璃碳电极上以环保方式合成金纳米粒子并将其应用于 DNA 生物传感器

IF 2.5 4区化学

Journal of Solid State Electrochemistry Pub Date : 2024-07-23 DOI: 10.1007/s10008-024-06014-1

Phuong Thao Dao Vu, Dien Nguyen Dac, Tam Phuong Dinh

{"title":"Eco-friendly synthesis of gold nanoparticles onto glassy carbon electrode and its application to DNA biosensor","authors":"Phuong Thao Dao Vu, Dien Nguyen Dac, Tam Phuong Dinh","doi":"10.1007/s10008-024-06014-1","DOIUrl":"https://doi.org/10.1007/s10008-024-06014-1","url":null,"abstract":"This work studies gold nanoparticle (AuNP) nucleation and growth mechanism from deep eutectic solvent (DES)-based choline chloride and glycerol (glyceline) onto glassy carbon electrode (GCE) and its application for DNA biosensor. Investigation of the current density transients indicated that the AuNPs were formed by the simultaneous presence of Au diffusion-controlled 3D nucleation and growth and residual water reaction over the Au nuclei growing surfaces. The AuNP structure was characterized by the field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. AuNPs were used to fabricate electrochemical DNA sensor. The hybridization was monitored by cyclic voltammetry and electrochemical impedance spectroscopy measurement using potassium ferri/ferrocyanide redox probes ({left[Fe{(CN)}_{6}right]}^{3-/4-}) as the indicator probe. Results show that the biosensor exhibited a linear correlation to the logarithm of the target DNA concentration ranged from 1.10−14 M to 1.10−9 M, and the limit of detection was 1.10−14 M. Furthermore, the findings indicate that the prepared electrode exhibited excellent reproducibility and long-term stability when applied for determining M. tuberculosis samples.","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141775321","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}

引用次数: 0