Solid State SciencesPub Date : 2024-07-05DOI: 10.1016/j.solidstatesciences.2024.107624
Yuchen Sun , Xinran Zang , Zhaoxuan Li , Xiao Zhang , Jinxue Guo
{"title":"V-doped NiS on carbon fiber cloth for improved electrochemical lithium storage and hydrogen evolution reaction","authors":"Yuchen Sun , Xinran Zang , Zhaoxuan Li , Xiao Zhang , Jinxue Guo","doi":"10.1016/j.solidstatesciences.2024.107624","DOIUrl":"10.1016/j.solidstatesciences.2024.107624","url":null,"abstract":"<div><p>Promoting the intrinsic electronic structure and conductivity by hetero-element doping technique is an effective solution to acquire improved electrochemical energy storage and conversion activities of transition metals based materials. Herein, the rationally designed integrated electrode of vanadium doped NiS nanoparticles supported on carbon fiber cloth (V–NiS/ CC) is prepared via a one-step hydrothermal method. The physical analysis reveals the successful and homogeneous doping of vanadium in NiS. The electrochemical measurements indicate that V-doping is crucial to improve the electrochemical properties of NiS for lithium storage and water splitting. As anode for lithium-ion battery, V–NiS/CC exhibits high reversible capacity of 1056.3 mAh g<sup>−1</sup> after 100 cycles at 0.1 A g<sup>−1</sup> and good rate performance. Additionally, a low overpotential of 121 mV is achieved to generate catalysis current density of 10 mA cm<sup>−2</sup> when V–NiS/CC serves for electrocatalytic hydrogen evolution. The remarkable electrochemical properties should be due to the optimized electronic structure and conductivity that are endowed by vanadium doping. This work provides a solid proof to design heteroatom doped transition metal sulfides for promising applications in electrochemical energy storage and conversion.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141573038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Immobilization of 137Cs in NaY type zeolite matrices using various heat treatment methods","authors":"O.O Shichalin , E.K. Papynov , A.A. Belov , N.P. Ivanov , I.Yu Buravlev , A.O. Lembikov , M.I. Dvornik , P.G. Chigrin , N.M. Vlasova , Yu.A. Mirovoy , N.D. Kulagin , E.S. Mirovaya , A.V. Syuy , T.A. Borisenko , A.V. Ukhina , V.O. Kaptakov , A.P. Zavjalov , Yun Shi , A.I. Ivanets","doi":"10.1016/j.solidstatesciences.2024.107619","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107619","url":null,"abstract":"<div><p>The accumulation of liquid radioactive waste presents a significant global challenge, necessitating effective strategies for safe management. This study investigates the immobilization of <sup>137</sup>Cs radionuclides, a prominent component of liquid radioactive waste, in ceramic matrices based on <sup>137</sup>Cs-saturated NaY Faujasite zeolite. Various thermal methods were employed, including cold pressing and sintering, cold pressing and sintering with microwave assistance, hot pressing, and spark plasma sintering, to enhance immobilization capabilities. Zeolite powder was saturated with <sup>137</sup>Cs radionuclides using an adsorption technique with low-activity model liquid radioactive waste. In-situ XRD and dilatometry methods were used to study the thermal behavior during NaY Faujasite annealing. The influence of calcination temperature on lattice parameters and crystallite size was assessed. Immobilization effectiveness was evaluated through relative density, Vickers microhardness, compressive strength, and metal ion leaching kinetics. Mechanistic evaluation was performed using XRD and SEM-EDX studies. Results showed that spark plasma sintering exhibited the highest efficiency for immobilizing <sup>137</sup>Cs radionuclides in NaY Faujasite matrices. This research contributes to liquid radioactive waste management by providing insights into the thermal behavior and enhanced immobilization capabilities of ceramic matrices.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141582756","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}
Solid State SciencesPub Date : 2024-07-04DOI: 10.1016/j.solidstatesciences.2024.107620
Ze-Yuan Yang, Luan Jiang, Tian-Yu Zhong, Jun Guo, Zi-Yuan Wang, Xing Yang, Jing Feng, Zhen-Hua Ge
{"title":"Enhanced thermoelectric and mechanical performance of Bi2S3 bulk materials by compositing with Bi0.33(Bi6S9)Br nanorods","authors":"Ze-Yuan Yang, Luan Jiang, Tian-Yu Zhong, Jun Guo, Zi-Yuan Wang, Xing Yang, Jing Feng, Zhen-Hua Ge","doi":"10.1016/j.solidstatesciences.2024.107620","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107620","url":null,"abstract":"<div><p>Recently, Bi<sub>2</sub>S<sub>3</sub> has garnered significant interest in the thermoelectric field due to its abundant and low-toxicity constituents. Nevertheless, pure Bi<sub>2</sub>S<sub>3</sub> material has not been utilized in thermoelectric applications because of its low electrical conductivity. This study presents the fabrication of the Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br-doped Bi<sub>2</sub>S<sub>3</sub> bulk samples with high electrical conductivity and mechanical performance via the melting method in conjunction with spark plasma sintering technology. The increased electron concentration is attributed to the replacement of S<sup>2−</sup> by Br<sup>−</sup> and the introduction of extra Bi in the lattice. At 323 K, the electrical conductivity of the Bi<sub>2</sub>S<sub>3</sub> + 3 wt% Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br sample increased to 208 Scm<sup>−1</sup>, signifying a 3-order-of-magnitude enhancement compared to the pure sample. The enhanced electrical conductivity led to the optimization of the electrical transport properties. At 573 K, the Bi<sub>2</sub>S<sub>3</sub> + 2 wt% Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br bulk sample achieved a peak power factor value of 481 μWm<sup>−1</sup>K<sup>−2</sup>, which is four times higher than that of the pure sample. Notably, the low lattice thermal conductivity of the Bi<sub>2</sub>S<sub>3</sub> + 5 wt% Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br sample was 0.56 W<sup>−1</sup> m<sup>−1</sup>K<sup>−1</sup> at 673 K. Given the significantly enhanced electrical transport properties and suppressed thermal conductivity, the Bi<sub>2</sub>S<sub>3</sub> + 2 wt% Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br sample achieved a peak <em>ZT</em> value of 0.45 at 673 K and a high <em>ZT</em><sub><em>ave</em></sub> value of 0.33 from 373 to 673 K. Compared to the pure Bi<sub>2</sub>S<sub>3</sub> sample, these values are 5 times and 3 times higher, respectively. Such advancements can be implemented in the domain of power generation. Additionally, the mechanical properties of the sample exhibited substantial enhancement, and the average hardness of the 2 wt% Bi<sub>0.33</sub>(Bi<sub>6</sub>S<sub>9</sub>)Br-doped sample increased from 2.73 GPa of the pure sample to 3.03 GPa. This novel strategy of dual point defects modulation provides a new pathway to enhance the thermoelectric performance of Bi<sub>2</sub>S<sub>3</sub> and other material systems.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141582719","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}
Solid State SciencesPub Date : 2024-07-04DOI: 10.1016/j.solidstatesciences.2024.107623
{"title":"The optimization of LaMn2O5@GO by precursor solution pH for the oxygen reduction reaction in zinc-air batteries","authors":"","doi":"10.1016/j.solidstatesciences.2024.107623","DOIUrl":"10.1016/j.solidstatesciences.2024.107623","url":null,"abstract":"<div><p>At present, precious metal Pt-based catalysts are still the most widely used commercially efficient oxygen reduction reaction (ORR) catalysts. However, due to factors such as scarcity of earth content, high cost, and poor durability, they cannot be used on a large scale in industry. In this paper, Mn-based mullite-type oxides LaMn<sub>2</sub>O<sub>5</sub> flake nanocrystals with large specific surface area were prepared as an effective substitute for noble metal-based catalysts by regulating the hydrothermal conditions, and introducing an appropriate amount of graphene oxide (GO) as the C source significantly improved the conductivity of the catalyst. Adjusting the pH range of the precursor solution changes the OH<sup>−</sup> ion concentration in the hydrothermal environment, destroys the oxygen-containing group species in LaMn<sub>2</sub>O<sub>5</sub>@GO and promotes O<sub>2</sub> adsorption during ORR, resulting in a half-wave potential of 0.82 V (vs. RHE). The corresponding catalyst was used to assemble a zinc-air battery, achieving a higher open circuit voltage (1.57 V) and power density (160 mW cm<sup>−2</sup>) and demonstrating excellent cyclic stability with a reduction in overpotential of only 30 mV after 450 h of long-term charge-discharge measurement. This work represents a general method to improve the catalytic activity of Mn-based mullite-type oxides for zinc-air battery applications.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141629788","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}
Solid State SciencesPub Date : 2024-07-04DOI: 10.1016/j.solidstatesciences.2024.107622
Huiqin Zhang , Xiaohui Huang , Guoping Li , Yinghua Lan , Yanhui Zhang
{"title":"SnS2: A piezocatalytic material for efficient degradation of ciprofloxacin","authors":"Huiqin Zhang , Xiaohui Huang , Guoping Li , Yinghua Lan , Yanhui Zhang","doi":"10.1016/j.solidstatesciences.2024.107622","DOIUrl":"10.1016/j.solidstatesciences.2024.107622","url":null,"abstract":"<div><p>Tin disulfide (SnS<sub>2</sub>), as a two-dimensional transition metal sulfide with similar electronic or structural properties, has been calculated to have the possibility of piezoelectricity. SnS<sub>2</sub> was prepared by different methods, the structure of materials were characterized by XRD and FT-IR. Then the morphology and surface elements of materials were characterized by SEM and XPS. Through the detection of PFM and electrochemical transient currents, the results show that the SnS<sub>2</sub> samples prepared by coprecipitation method have piezoelectric characteristics and current can be generated by applying mechanical stirring force. Comparing the materials that prepared by coprecipitation method, hydrothermal method and commercially purchased SnS<sub>2</sub>, it was found that the degradation rate of ciprofloxacin by the material prepared by the coprecipitation method could reach 93 % after 1 h. Through characterization, it is speculated that the piezocatalytic activity of the coprecipitation material is due to sodium ion doping. It is found that the preparation method and the introduction of heteroatoms have a great influence on the piezocatalytic activity. It provides a way for subsequent researchers to improve the performance of materials from material design.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141573039","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}
Solid State SciencesPub Date : 2024-07-02DOI: 10.1016/j.solidstatesciences.2024.107621
Salar Ahmad , Sajjad khan , Sajjad Ali , Ikram Ullah , Mohammad Mahtab Alam
{"title":"Characterization of manganese ferrite nanoparticles synthesized through pyrometallurgy","authors":"Salar Ahmad , Sajjad khan , Sajjad Ali , Ikram Ullah , Mohammad Mahtab Alam","doi":"10.1016/j.solidstatesciences.2024.107621","DOIUrl":"10.1016/j.solidstatesciences.2024.107621","url":null,"abstract":"<div><p>This research focuses on the cheap synthesis of manganese ferrite nanoparticles. Sintering of a mixture of ferric oxide powder (Fe2O3) and low-grade manganese ore is achieved by a simple pyrometallurgical synthesis method at temperatures of 1000 °C, 1100 °C, and 1200 °C. In this process, controlling the particle size proved successful, which is essential to increasing the application of the material. Results have shown that at 1200 °C, the developed phase was a manganese ferrite with a high-intensity peak, which was well confirmed by the XRD diffractogram. As expected, an increase in temperature significantly increased particle size. Through thermal analysis, a minor gain in weight was found at 792 °C, which indicates the formation of phases. The FTIR spectra showed characteristic ferrite stretching vibrations at 1636 cm-1 and other peaks below 1000 cm-1. TEM analysis and microstructural examination confirmed the simultaneous nucleation and growth of nanoparticles with tiny surface pores, indicating optimal magnetic properties and a high melting point. The material showed low coercivity and rapid switching of magnetic states, which is useful for different applications.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141573042","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}
Solid State SciencesPub Date : 2024-06-29DOI: 10.1016/j.solidstatesciences.2024.107615
Juraj Majzlan , Xiaocen Jia , Kristina Lilova , Tamilarasan Subramani , Alexandra Navrotsky , Edgar Dachs , Artur Benisek
{"title":"Thermodynamic stability of selected ASb2O6 and A2Sb2O7 phases (A = Ca, Ba, Cd, Sr, Zn)","authors":"Juraj Majzlan , Xiaocen Jia , Kristina Lilova , Tamilarasan Subramani , Alexandra Navrotsky , Edgar Dachs , Artur Benisek","doi":"10.1016/j.solidstatesciences.2024.107615","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107615","url":null,"abstract":"<div><p>– Antimonates with the stoichiometry <em>A</em>Sb<sub>2</sub>O<sub>6</sub> and <em>A</em><sub>2</sub>Sb<sub>2</sub>O<sub>7</sub> have a wide range of applications in many areas of materials sciences and geosciences. In this work, we have derived thermodynamic properties of <em>A</em>Sb<sub>2</sub>O<sub>6</sub> (<em>A</em> = Ba, Ca, Sr, Zn, Na<sub>2</sub>, Cd) and <em>A</em><sub>2</sub>Sb<sub>2</sub>O<sub>7</sub>, (<em>A</em> = Ca, Cd) with a combination of high-temperature oxide-melt calorimetry, relaxation calorimetry, differential scanning calorimetry (DSC), and density-functional theory (DFT) calculations. The samples were synthesized by solid-state techniques, characterized by powder X-ray diffraction, and found to belong to different structural types (rosiaite, trirutile, ilmenite, pyrochlore, and weberite). The Gibbs free energies of formation at <em>T</em> = 298.15 K from elements are (all data in kJ·mol<sup>−1</sup>) −1691.7 ± 4.8 (BaSb<sub>2</sub>O<sub>6</sub>), −1710.8 ± 4.7 (CaSb<sub>2</sub>O<sub>6</sub>), −1219.3 ± 4.1 (CdSb<sub>2</sub>O<sub>6</sub>), −1674.4 ± 4.9 (SrSb<sub>2</sub>O<sub>6</sub>), −1302.0 ± 3.4 (ZnSb<sub>2</sub>O<sub>6</sub>), −1596.9 ± 5.4 (Na<sub>2</sub>Sb<sub>2</sub>O<sub>6</sub>), −2407.6 ± 8.0 (Ca<sub>2</sub>Sb<sub>2</sub>O<sub>7</sub>), −1497.6 ± 7.5 (Cd<sub>2</sub>Sb<sub>2</sub>O<sub>7</sub>). The DFT calculations allowed to extrapolate the experimental heat capacity up to <em>T</em> = 1000 K and to calculate phase diagrams. They show that the syntheses of these compounds should be feasible either by hydrothermal treatment or solid-state reaction (using carbonates) with Na<sub>2</sub>Sb<sub>2</sub>O<sub>6</sub> as a precursor at relatively low temperatures. The only exception seems to be the phase SrSb<sub>2</sub>O<sub>6</sub> that is predicted to be unstable in a solid-state reaction involving Na<sub>2</sub>Sb<sub>2</sub>O<sub>6</sub> and SrCO<sub>3</sub>.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1293255824001808/pdfft?md5=0437c55b604e7e27f4958653d768dbb1&pid=1-s2.0-S1293255824001808-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Magnetite-doped nanopowder boron nitride for 10B delivery agent in BNCT","authors":"Shio Makatsaria , Levan Chkhartishvili , Natia Barbakadze , Otar Tsagareishvili , Shalva Kekutia , Jano Markhulia , Vladimer Mikelashvili , Matlab Mirzayev , Irma Jinikashvili , Shota Oboladze , Roin Chedia","doi":"10.1016/j.solidstatesciences.2024.107614","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107614","url":null,"abstract":"<div><p>Several chemical routes are proposed for the synthesis of hexagonal boron nitride h-BN nanopowders doped with magnetic nanoclusters – ferromagnetic iron Fe or ferrimagnetic magnetite Fe<sub>3</sub>O<sub>4</sub>. Nanocomposites obtained during our experiments reveal magnetic properties rendering them useful for an application in BNCT (Boron Neutron Capture Therapy) for external magnetic field controlled delivery of neutron-capturing boron <sup>10</sup>B isotopes in target tumor cells.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542325","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}
Solid State SciencesPub Date : 2024-06-26DOI: 10.1016/j.solidstatesciences.2024.107617
Alexander A. Shindrov , Maria G. Skachilova , Konstantin B. Gerasimov , Nina V. Kosova
{"title":"Foaming suppression during the solid-state synthesis of the Li1.3Al0.3Ti1.7(PO4)3 solid electrolyte","authors":"Alexander A. Shindrov , Maria G. Skachilova , Konstantin B. Gerasimov , Nina V. Kosova","doi":"10.1016/j.solidstatesciences.2024.107617","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107617","url":null,"abstract":"<div><p>In this work, the effect of carbon on the suppression of foaming during the solid-state synthesis of the Li<sub>1.3</sub>Al<sub>0.3</sub>Ti<sub>1.7</sub>(PO<sub>4</sub>)<sub>3</sub> (LATP) solid electrolyte was studied. According to thermal analysis data, mechanically activated mixtures with and without carbon exhibit similar behavior. The presence of carbon does not affect the gas release process during decomposition, and foaming suppression occurs due to the change in viscosity of the melt created by NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub>. Slow LATP-S, medium LATP-M and fast LATP-F synthesis routes were used to evaluate the optimal conditions for LATP preparation. It was found that the use of carbon to suppress foaming eliminated the need for preheating and milling and reduced the synthesis time to 2.5 h (LATP-F). The effect of the synthesis route on the phase composition, morphology, conductive and electrochemical properties of LATP-S, LATP-M and LATP-F was investigated. No significant differences in studied properties were found for the synthesizer LATP samples excluding particle size distribution. Comparison of the granulometric curves showed that the fast synthesis method resulted in a decrease in particle size. The values of the ionic conductivity σ<sub>ion</sub> for LATP-S, LATP-M and LATP-F are equal to ∼10<sup>−4</sup> S cm<sup>−1</sup>, while the electronic conductivity σ<sub>e</sub> does not exeed∙10<sup>−9</sup> S cm<sup>−1</sup>. The study of the electrochemical stability window of the synthesized LATP samples was showed that these solid electrolytes are stable up to 4.65–4.70 V.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141480033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High energy storage performance under low electric fields and remarkable dielectric temperature stability in (Na0.5Bi0.5)TiO3-based lead-free ceramics","authors":"Yating Ning, Yongping Pu, Zhemin Chen, Zixiong Sun, Lei Zhang, Qi Zhang, Chunhui Wu","doi":"10.1016/j.solidstatesciences.2024.107616","DOIUrl":"https://doi.org/10.1016/j.solidstatesciences.2024.107616","url":null,"abstract":"<div><p>Lead-free ceramic capacitors with superior energy storage properties and dielectric temperature stability are urgent needs for pulsed power devices. However, the risk of high voltage suppresses the improvement of comprehensive performance. Thus, a novel (1-<em>x</em>)(0.55Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-0.45Ba<sub>0.85</sub>Ca<sub>0.15</sub>Zr<sub>0.1</sub>Ti<sub>0.9</sub>O<sub>3</sub>)-<em>x</em>Bi(Mg<sub>2/3</sub>Ta<sub>1/3</sub>)O<sub>3</sub> (NBBCZT-<em>x</em>BMT) ceramics were successfully synthesized to address the above concerns. The addition of BMT is beneficial to maintaining high polarization strength, improving the breakdown strength and optimizing relaxor behavior. As a result, the optimum component exhibits excellent energy storage capability (<em>W</em><sub>rec</sub> = 3.05 J/cm<sup>3</sup>, <em>η</em> = 94.3 %) at 190 kV/cm and dielectric temperature stability (TCC ≤ ±10 % from 33 to 348 °C, tan<em>δ</em> ≤ 0.01 from 50 to 389 °C). Moreover, the corresponding sample maintains a variation of <em>W</em><sub>rec</sub> less than 6.7 % and <em>η</em> less than 1.6 % at 20–140 °C and 1–100 Hz. These results provide a novel candidate for high-performance ceramic capacitors under low electric fields.</p></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141480030","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}