Ionics最新文献

{"title":"Multifaceted potential of zinc oxide nanoparticles synthesised via thermal decomposition of zinc complexes: characterisation and applications","authors":"V. Preethi,&nbsp;S. Anila Raj,&nbsp;V. G. Viju Kumar,&nbsp;V. G. Vidya","doi":"10.1007/s11581-025-06094-7","DOIUrl":"10.1007/s11581-025-06094-7","url":null,"abstract":"<div><p>Zinc oxide nanoparticles exhibit distinctive optical, biological, electrical, and catalytic properties that render them extremely promising for an extensive array of applications. For this study, zinc complexes were thermally broken down to synthesis zinc oxide nanoparticles. Complexes were prepared by condensation reaction of N, N′′′Z)-N′,N′′′-(1,2-diphenylethane-1,2-diylidene)di(nicotinohydrazide (BNH) and various zinc salts. Fourier transform infrared spectroscopy, UV–visible, mass spectra, and thermogravimetric analysis were used to characterise zinc complexes. Several analytical techniques were used to characterise the nanoparticles, including X-ray diffraction analysis and electron microscopy including scanning and transmission techniques. Results showed that crystalline zinc oxide nanoparticles with distinct morphologies and nanoscale dimensions were formed. Methylene blue and methyl orange were used to test the potential of zinc oxide nanoparticles as a photocatalyst, and the results were promising. In vitro antidiabetic, in vitro antioxidant, sun protection factor, and in vitro scratch wound healing experiments demonstrated the advantages of zinc oxide nanoparticles.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2997 - 3020"},"PeriodicalIF":2.4,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced reversible sodium storage performance in CoFe2O4 nanoparticles as an anode material for sodium-ion batteries","authors":"Sarah Umeera Muhamad,&nbsp;Nurul Hayati Idris,&nbsp;Hanis Mohd Yusoff,&nbsp;Siti Rohana Majid,&nbsp;Muhamad Faiz Md Din,&nbsp;Lukman Noerochim","doi":"10.1007/s11581-025-06085-8","DOIUrl":"10.1007/s11581-025-06085-8","url":null,"abstract":"<div><p>Sodium (Na)-ion batteries are being pursued as viable alternatives to lithium (Li)-ion batteries because of their reasonable cost and enormous potential in application scale-up for energy storage systems in the future. However, it is difficult to identify electrode materials capable of accommodating the large ionic radius of Na-ions which makes Na-ion batteries exhibit slower intercalation kinetics than Li-ion batteries. Spinel ferrite is of interest because of its high theoretical capacity derived from multiple oxidation states. Herein, CoFe₂O₄ nanoparticles were successfully prepared using the ball milling technique, followed by calcination at 700℃ and 800℃ with varying calcination time. CoFe₂O₄ calcined at 700℃ for 2 h exhibited a uniform distribution of small particles (0.12 μm) and crystallites (45.89 nm). The electrode possesses high reversible capacity (178 mAh g⁻¹ at 0.1 C rate), reasonable cyclability (140 mAh g⁻¹ after 100 cycles) with 79% capacitive retention. The enhanced electrochemical performance of the CoFe₂O₄ electrode may be ascribed to its homogeneous distribution and fine particle size, which in turn decrease the Na-ion pathway and accelerate Na-ion transport within the electrode material.\u0000</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2487 - 2500"},"PeriodicalIF":2.4,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of bulk hetero-junction solar cell and photocatalytic wastewater treatment using Sn4+-doped copper ferrite nanoparticles","authors":"John Abel Martin Mark,&nbsp;Sharmila Arockiyasamy,&nbsp;Senthilkumar Nallusamy,&nbsp;Saravanan Pandiaraj,&nbsp;Abdullah N. Alodhayb,&nbsp;Khalid E. Alzahrani","doi":"10.1007/s11581-025-06073-y","DOIUrl":"10.1007/s11581-025-06073-y","url":null,"abstract":"<div><p>In this study, the chemical synthesis of copper ferrite (CuFe₂O₄) and Sn-doped CuFe₂O₄ nanoparticles is investigated for photovoltaic and wastewater cleaning applications. The structural and optical analysis shows that, up to a dosage of 5%, there is a decrease in crystallite size and bandgap with a rise in tin doping. Sn ions also significantly contribute to the overall resistance and impedance, as demonstrated by impedance studies. Additionally, the generated nanoparticles’ photo activity is predicted in degrade Acid Orange (AO) and Acid Red (AR) dye stuffs, and it is combined with P3HT and PCBM mix, respectively, to create bulk hetero-junction (BHJ) solar cells. Compared to all synthesized materials, the BHJ solar cell with 5% Sn-doped CuFe₂O₄ nanoparticles had a better power conversion efficiency. Dye degradation efficiency is also better for 5% Sn-doped CuFe₂O_4. Greater light absorbance, lower electron–hole recombination, and low surface resistance are the primary reasons for the notable efficiency of photocatalysts and solar cells with 5% Sn:CuFe₂O₄ material.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2837 - 2854"},"PeriodicalIF":2.4,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural investigation, vibrational study, and Na-ion transport properties of NaGaP2O7 as sodium solid electrolyte","authors":"R. Mendil,&nbsp;S. Nasri,&nbsp;A. Oueslati","doi":"10.1007/s11581-025-06087-6","DOIUrl":"10.1007/s11581-025-06087-6","url":null,"abstract":"<div><p>Searching for new a family of phosphates is of special importance to enrich the basic database of the structure and properties for developing inorganic compounds. In the current study, we have investigated the sodium diphosphate NaGaP₂O₇ sample, synthesized by the classical solid-state method. The Rietveld refinement results indicate a single phase with a monoclinic structure (space group P2_1<b>/</b>C). The average grain size was approximately around 18 µm. Vibrational study (IR, Raman) at room temperature confirmed the presence of the P₂O₇ functional group. The impedance spectra show that the electrical properties of the sample are heavily dependent on the frequency and temperature, indicating a relaxation phenomenon and semiconductor-type comportment. Nyquist plots were explored using an equivalent circuit, including a parallel combination of resistance and fractal capacity. The AC conduction mechanism in the material under investigation was clarified by applying correlated barrier hopping (CBH) and non-small polaron tunneling (NSPT) models. These findings suggest that the material shows promising potential as a cathode material.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2501 - 2514"},"PeriodicalIF":2.4,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molybdenum disulfide supported on chitin carbon aerogels as an efficient and stable hydrogen evolution electrocatalyst","authors":"Zhongya Jia,&nbsp;Pengran Qi,&nbsp;Junfeng Wang,&nbsp;Yi Wang,&nbsp;Yanli Ma,&nbsp;Chunjian Xu,&nbsp;Liangliang Tian,&nbsp;Tao Qi","doi":"10.1007/s11581-025-06089-4","DOIUrl":"10.1007/s11581-025-06089-4","url":null,"abstract":"<div><p>Chitin carbon aerogel (CCA) was prepared from chitin in this work, which exhibits a highly porous fibrous network structure and a large specific surface area (SSA). Molybdenum disulfide (MoS₂) nanosheets were synthesized on CCA (MoS₂-CCA) by a hydrothermal method. The unique structure of CCA prevents the aggregation of MoS₂ and increases its SSA, thereby exposing more catalytic active sites. The catalytic performance of MoS₂-CCA for the hydrogen evolution reaction (HER) was investigated, and it was found that its catalytic activity significantly outperforms that of MoS₂ supported on chitin carbon (MoS₂-CC), commercial MoS₂, and homemade MoS₂, with a low onset overpotential (151 mV) and good cycling stability. According to the analyses for structure, morphology, surface properties, and element valence states, besides the large SSA and porous structure of CCA, the rich oxygen and nitrogen-containing functional groups in CCA are also useful to the excellent catalytic activity, which increase the content of low-valence Mo and S. The synthesis strategy described herein is simple, and the biomass chitin used is a naturally occurring marine polymer that is inexpensive and non-polluting. This approach offers new avenues for designing high-efficiency HER electrocatalysts.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2701 - 2714"},"PeriodicalIF":2.4,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photocatalytic degradation of methylene blue using a ZnO-TiO2/rGO nanocomposite under UV irradiation","authors":"Safer Tale Almutairi","doi":"10.1007/s11581-025-06097-4","DOIUrl":"10.1007/s11581-025-06097-4","url":null,"abstract":"<div><p>This study reports the development of ZnO-TiO₂/rGO ternary nanocomposites synthesized via a simple hydrothermal strategy, exhibiting enhanced photocatalytic efficiency for the degradation of methylene blue (MB) under UV irradiation. The photocatalytic performance of the ZnO-TiO₂/rGO nanocomposites was evaluated under various conditions, including different pH levels, catalyst amount, and irradiation times. The ternary nanocomposite achieved ≈100% MB degradation after 120 min, surpassing the performance of individual ZnO, TiO₂, ZnO-TiO₂, and rGO photocatalysts. Reactive species analysis identified hydroxyl radicals and superoxide radicals as the primary active species, confirmed through scavenger studies. The proposed photocatalytic degradation mechanism highlights the role of reactive oxygen species (ROS) and the synergistic effect of the composite components. Additionally, the ZnO-TiO₂/rGO nanocomposite demonstrated excellent stability and reusability over multiple cycles, making it a promising candidate for environmental remediation. This study presents a rational design concept for developing highly efficient photocatalysts for wastewater treatment applications.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2789 - 2805"},"PeriodicalIF":2.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sol–gel synthesis of magnesium-doped lithium cobalt, nickel, and zinc olivine phosphates, and their electrochemical application","authors":"Sadia Kanwal,&nbsp;Ayesha Kanwal,&nbsp;Asadullah Dawood,&nbsp;Mehwish Huma Nasir,&nbsp;Akbar Hussain,&nbsp;Muhammad Asim,&nbsp;Faiza Benabdallah,&nbsp;Naveed Kausar Janjua","doi":"10.1007/s11581-025-06080-z","DOIUrl":"10.1007/s11581-025-06080-z","url":null,"abstract":"<div><p>Electrochemical water splitting is one of the most promising methods for producing green oxygen and hydrogen fuels to meet concurrent increasing energy demands. Herein, versatile single phase olivines magnesium doped lithium metal phosphates (LiMPO₄) where M = Co, Zn, Ni were synthesized using the non-aqueous sol–gel method. For structural and morphological analysis of LiCoPO₄ (LCP), LiNiPO₄ (LNP), LiZnPO₄ (LZP), and Mg-doped compositions, various characterization techniques like X-ray diffraction (XRD), Fourier transform infrared (FTIR), Scanning electron microscopy (SEM), and energy dispersive X-ray diffraction (EDX) techniques were used. Their electrochemical behavior was examined in various analyte solutions with the addition of facilitators such as glucose and methanol in I M KOH. When the active surface area of the said electrocatalyst was measured using cyclic voltammetry, LNMP was determined to be the best electrocatalyst to have a maximum surface area of 0.0345 cm², the highest current density (J) value of 39.1 mA/cm² with lowest overpotential of 0.217 V, and onset potential of 1.17 V. The water oxidation peak current density values suggest the strong catalytic activity and aided the water evolution reaction (OER). The electrocatalytic activity observed in methanol revealed that LNMP provides the highest heterogeneous rate constant (<i>k</i>^o) value of 8.75 × 10⁻⁵ cm/s, largest diffusion coefficient (<i>D</i>^o) value of 2.77 × 10⁻⁸ cm²/s, and with a low Tafel slope value of 42.3 mV/dec. The findings of the cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry measurements agreed that proposed nanomaterials enhanced electron transport, and charge transfer kinetics and are electrochemically more favorable. These key discoveries from the water oxidation reactions (WOR) are the basis for their use in high-energy devices. In summary, LNMPs have been demonstrated to be innovative and effective catalytic platforms for electrochemical water oxidation.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2439 - 2456"},"PeriodicalIF":2.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and characterization of BiVO4-ZnO nanocomposite as heterogeneous photocatalysts for wastewater treatment and enhanced electrode performance","authors":"Kannan Nagarajan,&nbsp;Sundara Venkatesh Perumalsamy,&nbsp;Vijayalakshmi Seenivasan,&nbsp;Jeganathan Kulandaivel,&nbsp;Thangadurai Paramasivam,&nbsp;Jayanthi Santhana Krishnan","doi":"10.1007/s11581-025-06079-6","DOIUrl":"10.1007/s11581-025-06079-6","url":null,"abstract":"<div><p>This study focuses on the synthesis and investigation of a BiVO₄-ZnO nanocomposite (NC) for photocatalytic dye degradation and dielectric applications. The synthesized NC exhibits improved structural, photocatalytic, and dielectric properties compared to its individual components. X-ray diffraction confirms the presence of monoclinic BiVO₄ and hexagonal wurtzite ZnO crystal structures. FESEM images show well-dispersed spherical ZnO and flaky BiVO₄ nanostructures. The NC achieves an impressive 98% degradation of methylene blue (MB) dye molecules in just 15 min, which is nearly four times faster than the parent materials. Additionally, photo-stability tests demonstrate excellent performance over five cycles, and radical trapping experiments highlight the roles of holes and hydroxyl radicals in the photodegradation process. Furthermore, dielectric measurements reveal a high dielectric constant of 36.18 and a low loss factor of 0.80. These findings suggest that the BiVO₄-ZnO nanocomposite is a promising material for environmental remediation and energy storage applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2807 - 2820"},"PeriodicalIF":2.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection sensitivity analysis of a vertical TFET biosensor using a negative capacitance GaSb/InGaAs electrolyte pH sensing system","authors":"Prabin Kumar Bera,&nbsp;Rashmi Rekha Sahoo,&nbsp;Rajib Kar,&nbsp;Durbadal Mandal","doi":"10.1007/s11581-025-06071-0","DOIUrl":"10.1007/s11581-025-06071-0","url":null,"abstract":"<div><p>This paper analyzes a vertically grown GaSb/InGaAs hetero-junction negative capacitance vertical tunnel FET (Hetero-NC-VeTFET) sensor with a pocket in the source region to improve device performance by generating a negative capacitance effect. The ferroelectric (FE) materials enhance gate performance at low gate voltages by amplifying the input signal. The study proposes a Bio-TFET with an overlapping hetero-structure for pH sensing, with the electrolyte (water) region modeled as an intrinsic semiconductor material with a bandgap of 1.12 eV and permittivity of 80. SILVACO ATLAS TCAD has been used to simulate the electrolyte-based TFET pH sensor, which examines the impact of pH changes on various device characteristics, including drain current, transconductance, surface potential, and their sensitivities. Using low band gap materials, GaSb and InGaAs, at the source/channel junction results in efficient tunneling, leading to enhanced sensitivity of the device. The negative capacitance with the GaSb/InGaAs configuration achieved vertical tunneling in the proposed device, thus improving the pH sensitivity. A detailed sensitivity analysis has been performed to examine the impact of negative capacitance on the drain current voltage and transconductance sensitivity (order of 10⁵).</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"2969 - 2979"},"PeriodicalIF":2.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of CeVO4 content on the structural and thermal properties of PANI/CeVO4 nanocomposites","authors":"Abirami S.,&nbsp;Kumar E.,&nbsp;Vigneshwaran B.","doi":"10.1007/s11581-025-06092-9","DOIUrl":"10.1007/s11581-025-06092-9","url":null,"abstract":"<div><p>This study presents the synthesis of cerium vanadate (CeVO₄) nanoparticle by microwave-assisted method and the formation of polyaniline/CeVO₄ (PANI/ CeVO₄) nanocomposites via in-situ polymerization with CeVO₄ contents of 1 wt. %, 3 wt. %, and 5 wt. %. The characterization was done through X-ray diffraction (XRD), ultraviolet–visible spectroscopy (UV–Vis), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and thermogravimetric-differential thermal analysis (TGA). XRD confirmed the CeVO₄ nanoparticles are in crystalline phase and the structural integrity of the composites. FTIR analysis showed successful incorporation of CeVO₄ into the PANI matrix by revealing characteristic peaks for both materials. SEM images demonstrated uniform distribution of CeVO₄ within PANI. UV–Vis spectroscopy indicated that CeVO₄ nanoparticles affects the optical properties of PANI, which is important for electronic and optoelectronic applications. Tg–DTA confirmed CeVO₄ has high thermal stability. The 3 wt. % CeVO₄ nanocomposites demonstrated superior thermal stability and interaction with PANI compared to the 1 wt. % and 5 wt. % samples. This makes the 3 wt. % CeVO₄ nanocomposites especially promising for electronic, optoelectronic, and electrochemical applications due to their enhanced properties and stability.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 3","pages":"3021 - 3036"},"PeriodicalIF":2.4,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553999","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}