Journal of Electroanalytical Chemistry最新文献_第2页

Enhancing high-voltage LiNi0.5Mn1.5O4 cathodes via low-temperature combustion and Ti doping 低温燃烧和掺钛增强高压LiNi0.5Mn1.5O4阴极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-05-01 Epub Date: 2026-02-05 DOI: 10.1016/j.jelechem.2026.119929

Yinlong Huang , Jie He , Lei Zhou , Jiaxin He , Yongjiang Wang , Lin Li , Dingyu Yang , Xumei Cui , Peng Cao , Yanwei Sui , Wen Zhang

{"title":"Enhancing high-voltage LiNi0.5Mn1.5O4 cathodes via low-temperature combustion and Ti doping","authors":"Yinlong Huang , Jie He , Lei Zhou , Jiaxin He , Yongjiang Wang , Lin Li , Dingyu Yang , Xumei Cui , Peng Cao , Yanwei Sui , Wen Zhang","doi":"10.1016/j.jelechem.2026.119929","DOIUrl":"10.1016/j.jelechem.2026.119929","url":null,"abstract":"<div><div>Low-temperature combustion synthesis (LTCS) enables a scalable, energy-efficient route for synthesizing high-performance cathode materials, yet its optimization for LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) – A high-voltage cathode material – Remains underexplored. We employed LTCS, guided by propellant thermochemistry, to synthesize pristine and Ti-doped LNMO (LiNi<sub>0.5</sub>Mn<sub>1.5-x</sub>Ti<sub>x</sub>O<sub>4</sub>, x = 0.01, 0.03, 0.05), investigating the effects of annealing (700–900 °C, 5–7 h) and Ti doping on structural and electrochemical properties. Annealing at 800 °C for 6 h yielded pristine LNMO with a disordered Fd<span><math><mover><mn>3</mn><mo>¯</mo></mover></math></span>m spinel structure, delivering 92.51 mAh/g at 20C. Ti doping at x = 0.03 produced uniform octahedral grains (152 nm) and reduced Mn<sup>3+</sup> content (25%), achieving 132.9 mAh/g at 0.1C and 91.1% capacity retention after 200 cycles at 1C. These enhancements stem from the substitution of Ti<sup>4+</sup> in the lattice, which stabilizes the structure and mitigates the dissolution of Mn<sup>3+</sup>. This optimized LTCS protocol provides a cost-effective and scalable approach for high-voltage LNMO cathodes, advancing the development of next-generation lithium-ion batteries</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1008 ","pages":"Article 119929"},"PeriodicalIF":4.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172756","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

Stable Li7P3S11 Sulfide/PVDF-HFP composited solid-state electrolyte for solid-state Lithium metal batteries 固态锂金属电池用稳定的Li7P3S11硫化物/PVDF-HFP复合固态电解质

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-05-01 Epub Date: 2026-02-04 DOI: 10.1016/j.jelechem.2026.119925

Jinkun Bai , Chongyang Zhao , Kangrong Lai , Guoqing Zhao , Guowei Chen , Lijie Ci , Lin Zhang

{"title":"Stable Li7P3S11 Sulfide/PVDF-HFP composited solid-state electrolyte for solid-state Lithium metal batteries","authors":"Jinkun Bai , Chongyang Zhao , Kangrong Lai , Guoqing Zhao , Guowei Chen , Lijie Ci , Lin Zhang","doi":"10.1016/j.jelechem.2026.119925","DOIUrl":"10.1016/j.jelechem.2026.119925","url":null,"abstract":"<div><div>Solid-state lithium metal batteries (SSLMBs) are regarded as promising next-generation energy storage systems due to their high energy density and improved safety. Compared with liquid electrolytes, solid-state electrolytes effectively suppress lithium dendrite growth and offer superior thermal and electrochemical stability. However, polymer solid electrolytes suffer from low ionic conductivity, while sulfide electrolytes are limited by poor air stability and interfacial incompatibility. Herein, a novel sulfide composite electrolyte (CSE) is developed by incorporating a glass–ceramic sulfide electrolyte, Li<sub>7</sub>P<sub>3</sub>S<sub>11</sub> (LPS), into a poly (vinylidene fluoride-<em>co</em>-hexafluoropropylene) (PVDF-HFP) matrix with LiTFSI, forming a flexible LPS/PVDF-HFP/LiTFSI composite film. This composite structure simultaneously enhances air stability, mechanical flexibility, and electrochemical stability. The introduction of LPS promotes lithium salt dissociation and increases the amorphous phase content of the polymer, resulting in improved lithium-ion transport. An optimal ionic conductivity of 3.01 × 10<sup>−4</sup> S cm<sup>−1</sup> is achieved at an LPS content of 3 wt%. The optimized CSE enables stable cycling of a Li|Li symmetric cell for over 1200 h at 0.1 mA cm<sup>−2</sup> and delivers a reversible capacity of 160 mAh g<sup>−1</sup> after 150 cycles in a LiFePO<sub>4</sub>|Li full cell.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1008 ","pages":"Article 119925"},"PeriodicalIF":4.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172755","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

Molecularly anchored ascorbic acid on NiFe-LDH by shielding effect for efficient seawater electrolysis 通过屏蔽效应将抗坏血酸分子锚定在NiFe-LDH上，实现高效的海水电解

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-05-01 Epub Date: 2026-02-05 DOI: 10.1016/j.jelechem.2026.119927

Jihao Liu, Qianqian Dong, Yaru Wen, Yuhao Li, Junjie Wang, Yiming Liu, Yansheng Liu, Zijun Sun, Jinghua Liu, Xiong He

{"title":"Molecularly anchored ascorbic acid on NiFe-LDH by shielding effect for efficient seawater electrolysis","authors":"Jihao Liu, Qianqian Dong, Yaru Wen, Yuhao Li, Junjie Wang, Yiming Liu, Yansheng Liu, Zijun Sun, Jinghua Liu, Xiong He","doi":"10.1016/j.jelechem.2026.119927","DOIUrl":"10.1016/j.jelechem.2026.119927","url":null,"abstract":"<div><div>High efficiency and corrosion resistant oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis are still key challenges. Here, ascorbic acid (AA) is used to modify NiFe-LDH to inhibit the chlorine evolution reaction (CER) in alkaline seawater. The nickel‑iron layered double hydroxide composite material modified by ascorbic acid molecules shows excellent electrocatalytic oxygen evolution reaction activity. In a 1 M concentration potassium hydroxide alkaline electrolyte system, when the current density of this material reaches 50 mA cm<sup>−2</sup>, the overpotential is only 241 mV, while in alkaline seawater environment, the corresponding overpotential slightly increases to 276 mV. It is worth noting that this catalytic system exhibits excellent long-term operation stability. Under the current density condition of 50 mA cm<sup>−2</sup>, its catalytic activity can be stably maintained for more than one hundred hours. The significant enhancement of this performance is mainly attributed to the better electrochemical reaction kinetics characteristics at the interface, as well as the effective chloride ion shielding layer constructed by introducing ascorbic acid, the latter of which can effectively prevent corrosive ions from attacking the catalytic active sites. The dual roles accelerate the OER of seawater electrolysis and prevent side reactions. The research results help in designing surface engineering electrocatalysts with high OER activity and chloride corrosion resistance.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1008 ","pages":"Article 119927"},"PeriodicalIF":4.1,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172752","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

Low-potential, stable electrochemical detection of 3-hydroxybutyrate using phenazine ethosulfate-conjugated poly(ethyleneimine) and a chitosan overcoat 用非那嗪乙磺酸偶联聚亚胺和壳聚糖包被低电位、稳定的电化学检测3-羟基丁酸盐

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-02-08 DOI: 10.1016/j.jelechem.2026.119914

Taeyeon Yoo , Minhwa Oh , Jihyeon Kim, Seonhwa Park, Ponnusamy Nandhakumar, Haesik Yang

{"title":"Low-potential, stable electrochemical detection of 3-hydroxybutyrate using phenazine ethosulfate-conjugated poly(ethyleneimine) and a chitosan overcoat","authors":"Taeyeon Yoo , Minhwa Oh , Jihyeon Kim, Seonhwa Park, Ponnusamy Nandhakumar, Haesik Yang","doi":"10.1016/j.jelechem.2026.119914","DOIUrl":"10.1016/j.jelechem.2026.119914","url":null,"abstract":"<div><div>We report a low-potential, stable electrochemical biosensor for 3-hydroxybutyrate (BHB) comprising a poly(ethyleneimine) (PEI) layer covalently conjugated with an amine-reactive phenazine ethosulfate mediator (arPES), a 3-hydroxybutyrate dehydrogenase (HBD) layer, and a chitosan overcoat. Screening four redox mediators (arPES, methylene blue, toluidine blue O, and 1,10-phenanthroline-5,6-dione) identified arPES as providing the largest catalytic charge gain, enabling operation at 0.0 V vs Ag/AgCl to suppress interference. Among architectures pairing arPES-conjugated PEI or poly-<span>l</span>-lysine with chitosan or poly(sodium 4-styrenesulfonate) overcoats, the configuration of arPES-conjugated poly(ethyleneimine) and chitosan delivered the highest signal-to-background ratios and superior stability. After optimizing PEI loading, HBD level, and operating potential, the sensor achieved a limit of detection of ∼200 nM and a broad working range (10 nM–10 mM). In spiked human serum, the integrated charge scaled with BHB across clinically relevant concentrations, demonstrating practical applicability. Low-potential operation, covalent mediator conjugation, and the bioprotective chitosan layer collectively minimized mediator loss and enzyme deactivation. This platform affords sensitive and stable BHB quantification suitable for point-of-care testing applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119914"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171853","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 fabrication of a stable fluorine-based gel polymer electrolyte for high-voltage lithium-ion batteries 高压锂离子电池用稳定氟基凝胶聚合物电解质的原位制备

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-01-31 DOI: 10.1016/j.jelechem.2026.119894

Shuai Gao , Juan Wei , Liu Zhou , Huanhuan Shan , Yuxuan Hu , Zhenxian Wen , Shaoheng Liu , Zhi Zhang , Rui Tan , Zimo Huang , Jie Li , Hong Bo

{"title":"In-situ fabrication of a stable fluorine-based gel polymer electrolyte for high-voltage lithium-ion batteries","authors":"Shuai Gao , Juan Wei , Liu Zhou , Huanhuan Shan , Yuxuan Hu , Zhenxian Wen , Shaoheng Liu , Zhi Zhang , Rui Tan , Zimo Huang , Jie Li , Hong Bo","doi":"10.1016/j.jelechem.2026.119894","DOIUrl":"10.1016/j.jelechem.2026.119894","url":null,"abstract":"<div><div>Gel polymer electrolytes (GPEs) are pivotal for advancing lithium-ion batteries (LIBs), as they uniquely combine the high ionic conductivity of liquid electrolytes with the enhanced stability of all-solid-state electrolytes. However, conventional GPEs often suffer from poor electrode/electrolyte interfacial compatibility under high voltages, which severely hampers their practical implementation in high-voltage LIBs. In this work, we develop an innovative strategy to synthesize a stable fluorine-based gel polymer electrolyte (HPGPEs) via in-situ thermally initiated polymerization: 1,1,1,3,3,3-hexafluoroisopropyl methacrylate (HFIPMA) and pentaerythritol tetraacrylate (PETEA) are copolymerized in a pristine liquid electrolyte (LE) to form a cross-linked polymer network. The fluorine-containing groups of HFIPMA in HPGPEs are crucial for constructing a robust fluorine-rich cathode electrolyte interphase (CEI) layer, which effectively suppresses interfacial degradation during long-term cycling. HPGPEs exhibit superior electrochemical performance, with an ionic conductivity of 3.97 × 10<sup>−3</sup> S cm<sup>−1</sup> and an expanded electrochemical oxidation stability window of 4.54 V. Consequently, the LiNi<sub>0.6</sub>Co<sub>0.1</sub>Mn<sub>0.3</sub>O<sub>2</sub>||HPGPEs||graphite pouch full battery retains a high-capacity retention of 90.7% after 500 cycles at 4.35 V and 35 °C, outperforming the commercial LE-based battery (83.3%). This work provides an effective strategy for designing and developing high-performance GPEs, paving the way for the advancement of high-voltage LIBs.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119894"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172206","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

Ni3Bi2S2/C as an advanced sodium-ion batteries anode Ni3Bi2S2/C作为一种先进的钠离子电池阳极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-02-08 DOI: 10.1016/j.jelechem.2026.119938

Yang Liu, Liwen Zhang, Shandong Huang, Ting Yue, Yihong Ding, Huilei Jin, Tianbiao Zeng

{"title":"Ni3Bi2S2/C as an advanced sodium-ion batteries anode","authors":"Yang Liu, Liwen Zhang, Shandong Huang, Ting Yue, Yihong Ding, Huilei Jin, Tianbiao Zeng","doi":"10.1016/j.jelechem.2026.119938","DOIUrl":"10.1016/j.jelechem.2026.119938","url":null,"abstract":"<div><div>Against the backdrop of the global energy transition toward renewable sources, sodium-ion batteries (SIBs) are regarded as an ideal candidate for large-scale energy storage due to the low cost of sodium. Binary metal sulfides as anode material exhibit superior electrochemical performance compared to their single-metal counterparts; however, they still suffer from rapid capacity degradation due to substantial volume variations during cycling. To address this issue, this study proposes the stabilization of Ni<sub>3</sub>Bi<sub>2</sub>S<sub>2</sub> on hard carbon fragments (Ni<sub>3</sub>Bi<sub>2</sub>S<sub>2</sub>-C) as a strategy to enhance the structural integrity and prolong the cyclability of the electrode material. Hard carbon not only constructs a high-speed electron conduction network and buffers volume strain but also modulates the electronic structure of Ni<sub>3</sub>Bi<sub>2</sub>S<sub>2</sub> through interfacial electron interactions, thereby significantly enhancing Na<sup>+</sup> transport efficiency and reaction reversibility. The initial reversible capacity of the Ni<sub>3</sub>Bi<sub>2</sub>S<sub>2</sub>-C electrode reaches 350 mAh/g, and after 220 cyclesat 0.5 A/g, it remains at 466.3 mAh/g, exceptional long-term cycling stability of approximately 250 mAh/g capacity after 230 cycles at 2 A/g. This study provides a feasible approach for designing advanced binary metal sulfide/carbon composite anode materials, also offering a generalizable method for developing other transition metal chalcogenide-based energy storage materials.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119938"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172204","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

Study on highly stable CuxBiy@Ti alloy electrode and its application performance in anode-free zinc ion batteries 高稳定CuxBiy@Ti合金电极及其在无阳极锌离子电池中的应用性能研究

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-01-31 DOI: 10.1016/j.jelechem.2026.119878

Han Shen , Lijun Chen , Yue Jing , Xiaorong Meng , Xiaopeng Ma , Lu Li , Yuhang Wang

{"title":"Study on highly stable CuxBiy@Ti alloy electrode and its application performance in anode-free zinc ion batteries","authors":"Han Shen , Lijun Chen , Yue Jing , Xiaorong Meng , Xiaopeng Ma , Lu Li , Yuhang Wang","doi":"10.1016/j.jelechem.2026.119878","DOIUrl":"10.1016/j.jelechem.2026.119878","url":null,"abstract":"<div><div>Designing zinc-affinity copper substrate materials is an effective strategy for creating dendrite-free and zinc-deposition-free anodes for anode-free zinc-ion batteries (AF-AZIB). To further enhance the stability of anode-free copper substrates, a Cu<sub>x</sub>Bi<sub>y</sub>@Ti alloy electrode with a three-dimensional network structure was constructed on titanium foil via constant-current electrodeposition. The effects of electrolyte composition on the morphology, chemical composition, structure, and electrochemical performance of the Cu<sub>x</sub>Bi<sub>y</sub>@Ti electrode were investigated, and the preparation conditions for the Cu<sub>x</sub>Bi<sub>y</sub>@Ti anode were optimized. The results reveal that the Cu<sub>x</sub>Bi<sub>y</sub>@Ti surface comprises a Cu-Bi alloy matrix together with metal oxides; an excess of Bi<sup>3+</sup> suppresses the preferential deposition of Cu<sup>2+</sup>, and a 1:1 Cu<sup>2+</sup>/Bi<sup>3+</sup> ratio in the electrolyte yields the highest alloying degree (CuBi@Ti). In half-cell tests, CuBi@Ti exhibits rapid Zn<sup>2+</sup> adsorption/stripping kinetics, excellent hydrogen-evolution suppression and corrosion resistance, enabling stable operation for nearly 2000 h at 1 mA·cm<sup>−2</sup>. A full CuBi@Ti//MnO<sub>2</sub> cell demonstrates robust cycling stability at 2 A·g<sup>−1</sup>. This work offers a new avenue for designing high-performance electrode materials for anode-free aqueous zinc-ion batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119878"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146102647","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

Hydrothermal integration of carbon nanotube (CNT) into NiCo oxysulfide electrocatalysts for improved rechargeable zinc–air battery performance 水热集成碳纳米管（CNT）制备氧化硫化镍电催化剂以改善可充电锌-空气电池性能

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-02-11 DOI: 10.1016/j.jelechem.2026.119940

Noto Susanto Gultom , Ji-En Liu , Dong-Hau Kuo

{"title":"Hydrothermal integration of carbon nanotube (CNT) into NiCo oxysulfide electrocatalysts for improved rechargeable zinc–air battery performance","authors":"Noto Susanto Gultom , Ji-En Liu , Dong-Hau Kuo","doi":"10.1016/j.jelechem.2026.119940","DOIUrl":"10.1016/j.jelechem.2026.119940","url":null,"abstract":"<div><div>Zinc-air batteries (ZABs) represent a promising alternative energy storage solution owing to their elevated energy density, superior safety, and economic nature. This research explores a one-step hydrothermal synthesis of oxygen-incorporated, defect-rich spinel-type (Ni,Co)₃(O,S)₄₋ᵧ, facilitated by a trimetallic Co–Mn–Ni precursor system and in situ CNT integration. XRD and Raman analyses confirmed that the predominant crystal structure was the spinel-type NiCo<sub>2</sub>S<sub>4</sub> phase. Nonetheless, EDS and XPS analyses indicated partial oxygen substitution within the sulfide lattice, associated with the molecular configuration of (Ni, Co)<sub>3</sub>(O, S)<sub>4</sub> for the mixed spinel-type and oxygen-substituted (Ni, Co)<sub>3</sub>S<sub>4</sub>. Elemental studies verified that the Mn precursor failed to integrate into the compounds due to its diminished reactivity under moderate hydrothermal conditions; however, its participation in synthesis significantly enhanced catalytic activity by interfering with the precipitation step. The integration of carbon nanotubes did not influence the crystal structure but significantly enhanced electrical conductivity and interfacial charge transport. However, electrochemical evaluations revealed that CMN-S-CNT-10, which incorporated 10 mg of CNT, exhibits superior electrode performance, with a discharge power density of 126.9 mW/cm<sup>2</sup>, specific capacity of 820 mAh/g<sub>Zn</sub>, and extremely high energy density of 966 mWh/g<sub>Zn</sub>. It exhibits remarkable stability, as evidenced by a 60-h long-term cycling test, during which the charge-discharge voltage gap increased only 0.09 V, indicating exceptional structural stability after incorporating CNTs. This research presents a distinct synthesis strategy that combines defect engineering, oxygen incorporation, and CNT integration in a single step, offering markedly enhanced electrochemical performance of rechargeable ZABs.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119940"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172201","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

Novel design of SiOx/graphite/nitrogen-doped pitch carbon composite for superior lithium storage 新型SiOx/石墨/掺氮沥青碳复合材料的锂存储性能

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-02-11 DOI: 10.1016/j.jelechem.2026.119939

Shuo Li , Zhaoqi Zhang , Junsheng Zhu

{"title":"Novel design of SiOx/graphite/nitrogen-doped pitch carbon composite for superior lithium storage","authors":"Shuo Li , Zhaoqi Zhang , Junsheng Zhu","doi":"10.1016/j.jelechem.2026.119939","DOIUrl":"10.1016/j.jelechem.2026.119939","url":null,"abstract":"<div><div>To enhance the lithium storage performance of SiO<sub><em>x</em></sub>, a facile ball milling and calcination approach has been developed to prepare a novel SiO<sub><em>x</em></sub>/graphite/nitrogen-doped pitch carbon composite (SiO<sub><em>x</em></sub>/G/N-PC). In this design, graphite and SiO<sub><em>x</em></sub> particles are in close contact, thereby improving the electronic conductivity and mitigating the structural stress effectively. The nitrogen-doped pitch carbon (N-PC) layer can further enhance the structural integrity of the composite. Electrochemical tests show that SiO<sub><em>x</em></sub>/G/N-PC achieves an initial discharge capacity of 658.8 mAh g<sup>−1</sup> and an initial Coulombic efficiency of 70.3% at 0.5 A g<sup>−1</sup>. After 200 cycles, it retains a reversible capacity of 681.1 mAh g<sup>−1</sup>, which is superior to SiO<sub><em>x</em></sub>, SiO<sub><em>x</em></sub>/graphite (SiO<sub><em>x</em></sub>/G) and SiO<sub><em>x</em></sub>/graphite/pitch carbon (SiO<sub><em>x</em></sub>/G/PC). This work proposes an innovative approach for the systematic design of SiO<sub><em>x</em></sub>-based C composite anodes and contributes meaningful guidance for advanced lithium-ion batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119939"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172198","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

Recent advances in the fabrication of electrochemical sensing platforms for the enantioselective recognition of tryptophan enantiomers 色氨酸对映体选择性识别电化学传感平台的研究进展

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2026-04-15 Epub Date: 2026-02-03 DOI: 10.1016/j.jelechem.2026.119913

Mingfang Zhang, Fengxia Wang, Liang Ma, Xuewen Li, Yan Tang, Guang Yang

{"title":"Recent advances in the fabrication of electrochemical sensing platforms for the enantioselective recognition of tryptophan enantiomers","authors":"Mingfang Zhang, Fengxia Wang, Liang Ma, Xuewen Li, Yan Tang, Guang Yang","doi":"10.1016/j.jelechem.2026.119913","DOIUrl":"10.1016/j.jelechem.2026.119913","url":null,"abstract":"<div><div>L-tryptophan (L-Trp) is the second essential amino acid and is involved in the protein biosynthesis and expression, while its enantiomer of D-tryptophan (D-Trp) exhibits different or opposite biological effects. Hence, the chiral identification of Trp enantiomers is practically significant in life science. Currently, electrochemical technologies have gained increasing interest in enantioselective recognition because of their unique merits of low price, good sensitivity, fast response speed, simple preparation and convenient operation. Herein, we present a review to summarize recent advances in the fabrication of chiral sensors for the electrochemical identification of Trp enantiomers and expound the general design strategies and sensing principles. Moreover, different kinds of chiral selectors for the design of chiral sensing platforms are comprehensively discussed. In addition, challenges and perspectives were also predicted in the design of electrochemical chiral sensors for the enantioselective recognition and detection of Trps.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"1007 ","pages":"Article 119913"},"PeriodicalIF":4.1,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172207","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}

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