Solid State Sciences最新文献_第8页

Design and fabrication of nitrogen-doped graphene-promoted Na3MnTi(PO4)3@C cathode with three-electron reactions for sodium-ion storage 设计和制造氮掺杂石墨烯促进的 Na3MnTi(PO4)3@C 阴极，用于钠离子存储的三电子反应

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-28 DOI: 10.1016/j.solidstatesciences.2024.107678

Peifang Luo , Zan Huang , Tingyu Wang , Hua Xiao , Xiuhua Ma , Ruihan Yan , Gengfeng Zhao

{"title":"Design and fabrication of nitrogen-doped graphene-promoted Na3MnTi(PO4)3@C cathode with three-electron reactions for sodium-ion storage","authors":"Peifang Luo , Zan Huang , Tingyu Wang , Hua Xiao , Xiuhua Ma , Ruihan Yan , Gengfeng Zhao","doi":"10.1016/j.solidstatesciences.2024.107678","DOIUrl":"10.1016/j.solidstatesciences.2024.107678","url":null,"abstract":"<div>As a novel cathode material for sodium-ion batteries, Na3MnTi(PO4)3 (denoted as NMTP) has received great attention because of its abundant natural resources, excellent safety, low toxicity as well as three-electron reactions. Unfortunately, the pure NMTP cathode displays a bad conductivity, resulting in an inferior electrochemical performance for sodium energy storage. Herein, we introduce a good route to fabricate the nitrogen-doped graphene-decorated NMTP@C (denoted as NG-NMTP@C) composite with superior rate property and superior cycle stability for the first time. In this fabricated material, the nitrogen-doped graphene nanosheets are dispersed into the NMTP@C particles. Compared to NMTP@C, the prepared NG-NMTP@C cathode possesses better cycle stability and higher capacity. It shows the capacity of 173.1 mAh g−1 at 0.1 C and presents the high capacity retention of around 97.1 % at 10.0 C over 400 cycles. Therefore, this fabricated NG-NMTP@C nanocomposite can be employed as the novel positive electrode in sodium-ion storage.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107678"},"PeriodicalIF":3.4,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087271","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

First-principles calculations and experimental studies on Cr2MnAl Heusler alloy nanoparticles for spintronics applications 用于自旋电子学应用的 Cr2MnAl Heusler 合金纳米粒子的第一性原理计算和实验研究

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-27 DOI: 10.1016/j.solidstatesciences.2024.107679

Karthik G , Viswanathan E , Ravichandran K , Naveen Kumar T.R.

{"title":"First-principles calculations and experimental studies on Cr2MnAl Heusler alloy nanoparticles for spintronics applications","authors":"Karthik G , Viswanathan E , Ravichandran K , Naveen Kumar T.R.","doi":"10.1016/j.solidstatesciences.2024.107679","DOIUrl":"10.1016/j.solidstatesciences.2024.107679","url":null,"abstract":"<div>In depth understanding of the magnetic, structural and electrical properties of Heusler alloys are crucial to achieve potential applications in spin-based device. Wherein, we report the synthesis of Cr2MnAl Heusler alloy nanoparticles (NPs) via co-precipitation method and also demonstrated their transport properties. Interestingly X-ray analysis confirms the cubic phase of the synthesized Heusler alloy NPs and transmission electron microscopy (TEM) analysis reveals that the Cr2MnAl as particle size of 10 ± 2 nm. Moreover, this particle size has adverse effect on symmetry of Cr2MnAl Heusler alloy due to their higher surface to volume ratio that significantly changes their magnetic and electrical properties. These NPs exhibit soft ferromagnetic properties with a Curie temperature (Tc) of 25 K. Besides, resistivity measurements indicate the semiconducting nature and also we report the observation of anomalous Hall effect. In addition, we support our experimental results by studying the electronic and magnetic properties of alloy using first principle calculations. This density functional theory reveals that Cr2MnAl has half metallic characteristics with high spin polarization. In light of above, this material can be used as intermediate layer to decouple the two ferromagnetic layers which acts as spin-polarized carriers in spin-based device.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107679"},"PeriodicalIF":3.4,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097153","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

Structure and physical properties of a new telluride Mg1.2(1)In1.2(1)Si2Te6 新型碲化镉 Mg1.2(1)In1.2(1)Si2Te6 的结构和物理性质

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-26 DOI: 10.1016/j.solidstatesciences.2024.107677

Omair Shahid , Manish K. Niranjan , Jai Prakash

{"title":"Structure and physical properties of a new telluride Mg1.2(1)In1.2(1)Si2Te6","authors":"Omair Shahid , Manish K. Niranjan , Jai Prakash","doi":"10.1016/j.solidstatesciences.2024.107677","DOIUrl":"10.1016/j.solidstatesciences.2024.107677","url":null,"abstract":"<div>A new Mg-containing disordered quaternary telluride Mg1.2(1)In1.2(1)Si2Te6 is prepared at 1223 K by direct fusion of elements. This mixed metal telluride adopts a trigonal (P<math><mrow><mover><mn>3</mn><mo>‾</mo></mover></mrow></math>1m space group) structure having refined cell constants of a = b = 7.0603(3) Å and c = 7.1681(4) Å. Four unique crystallographic sites are filled in the structure: one disordered metal site (In1/Mg1), one partially filled Mg2, one Si1, and one Te1. Each metal ion (In and Mg) in the structure sits at the center of a distorted octahedron of Te1 atoms. Two Si atoms are involved in forming an ethane-like Si2Te6 unit with the help of a Si−Si bond. The local coordination environment around each Si atom can be described as a distorted tetrahedron comprising one Si1 and three Te1 atoms. A polycrystalline sample with the loaded composition of Mg1.2In1.2Si2Te6 shows an optical bandgap of 1.02(2) eV. The p-type semiconducting nature of the Mg1.2In1.2Si2Te6 sample was established from the positive values of the Seebeck coefficient (S) and resistivity studies. The complex structure of the Mg1.2In1.2Si2Te6 phase, which features heavy elements (In and Te), helps to achieve ultralow total thermal conductivity (ktot) of 0.33 W/mK at 773 K.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107677"},"PeriodicalIF":3.4,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097142","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

Preparation and sodium storage properties of Ni-CoFe2O4/Reduced graphene oxide 镍-钴-铁氧化物/还原氧化石墨烯的制备与钠储存特性

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-26 DOI: 10.1016/j.solidstatesciences.2024.107673

Yanjiao Liu , Chengmei Li , Qi Li , Wenquan Jiang , Hengrui Qiu , Qi Liu , Wenxiu He , Yongqiang Zhang

{"title":"Preparation and sodium storage properties of Ni-CoFe2O4/Reduced graphene oxide","authors":"Yanjiao Liu , Chengmei Li , Qi Li , Wenquan Jiang , Hengrui Qiu , Qi Liu , Wenxiu He , Yongqiang Zhang","doi":"10.1016/j.solidstatesciences.2024.107673","DOIUrl":"10.1016/j.solidstatesciences.2024.107673","url":null,"abstract":"<div>The Ni-doped CoFe2O4 graphene composites (Ni-CFO/RGO) have been successfully prepared using the microwave-assisted method. The substance is a novel nanocomposite structure in which CoFe2O4 nanoparticles are tightly and uniformly attached to graphene hybrid nanosheets. The synergistic effect of Ni doping and CoFe2O4 can reduce the volume expansion of CoFe2O4 in the reaction process and inhibit the stacking of graphene. Because the Ni-CFO/RGO composite is structurally stable during the electrochemical reaction, it has a good theoretical capacity. Excellent carbon composite can further enhance the electron transport performance and structural stability of the material, thereby improving the electrochemical performance and cycle life of the material. Doping Ni2+ into metal oxides can not only form oxygen vacancies, and improve the transport capacity of sodium ions, but also broaden the electron transport channel. In addition, the catalyst can form a composite structure with metal oxide, which can effectively inhibit its volume expansion. At the same time, reacting with carbon materials, can also effectively reduce the accumulation of carbon, thereby reducing its resistance. After 200 cycles at a current density of 0.05 A g−1, it can provide a high sodium storage capacity of 380.6 mAh g−1, which still keeps 203.4 mAh g−1 at 1.5 A g−1.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107673"},"PeriodicalIF":3.4,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097140","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

The structural mechanisms of pressure-induced phase transitions in the Carpy-Galy phase layered perovskites Carpy-Galy 相层状过氧化物中压力诱导相变的结构机制

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-26 DOI: 10.1016/j.solidstatesciences.2024.107676

A.G. Asadov , D.P. Kozlenko , A.I. Mammadov , R.Z. Mehdiyeva , E.V. Lukin , S.E. Kichanov

引用次数: 0

Enhancing photocatalytic CO2 reduction to CO through increased effective interfaces on 2D/2D BiOIO3/Bi-MOF type II heterojunctions 通过增加二维/二维 BiOIO3/Bi-MOF II 型异质结上的有效界面，提高光催化二氧化碳还原为一氧化碳的能力

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-23 DOI: 10.1016/j.solidstatesciences.2024.107670

Yuhong Niu , Jingjing Jiang , Xueqin Zhou , Yingrui Wang , Jie Ma , Fengjun Zhang

引用次数: 0

Effects of Y3+ doping on the microstructure evolution, optical, dielectric, and non-Ohmic properties of Na1/3Cd1/3Bi1/3Cu3Ti4O12 ceramics 掺杂 Y3+ 对 Na1/3Cd1/3Bi1/3Cu3Ti4O12 陶瓷微观结构演变、光学、介电和非欧姆特性的影响

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-22 DOI: 10.1016/j.solidstatesciences.2024.107675

Renzhong Xue , Xiaosong Liu , Kun Yang , Tao Li , Haiyang Dai , Jing Chen

{"title":"Effects of Y3+ doping on the microstructure evolution, optical, dielectric, and non-Ohmic properties of Na1/3Cd1/3Bi1/3Cu3Ti4O12 ceramics","authors":"Renzhong Xue , Xiaosong Liu , Kun Yang , Tao Li , Haiyang Dai , Jing Chen","doi":"10.1016/j.solidstatesciences.2024.107675","DOIUrl":"10.1016/j.solidstatesciences.2024.107675","url":null,"abstract":"<div>In this study, Na1/3Cd1/3(Bi1-xYx)1/3Cu3Ti4O12 (NCBYCTO, x = 0−0.20) ceramics were successfully prepared via solid state method. Their microstructure along with the optical, dielectric, and non-Ohmic properties were investigated systemically. It was shown that Y3+ doping caused the decrease in cation vacancy concentration and the increase in optical energy band. With the increase of Y3+ content, ceramics exhibited a more stable structure, while their average grain size increased from 6.80 μm to 9.12 μm and then decreased to 2.17 μm with the dopant amount. The relative density increased from 94.7 % for the undoped specimen to 95.6 % for the specimen with x = 0.20. The giant dielectric constant (ɛ′ = 44200) at a relatively low dielectric loss (tanδ = 0.048) at 10 kHz was obtained in the specimen with x = 0.08, being more than three times that of undoped sample and demonstrating the outstanding frequency stability in the range of 40−106 Hz. The giant dielectric constant below 106 Hz originated from Maxwell–Wagner relaxation related to the insulating grain boundaries (GBs) and followed the internal barrier layer capacitor model. Besides that, Y3+ doping improved the nonlinearity properties of NCBYCTO ceramics. The specimen with x = 0.20 had the largest nonlinearity coefficient α (∼9.60) and breakdown field strength Eb (∼7.15 kV/cm). At last, the nonlinear J-E characteristics were closely related to the GB conductivity activation energy.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107675"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048942","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

Potassium/cyano group co-incorporation promotes 2e− ORR selectivity in porous ultrathin carbon nitride for photocatalytic H2O2 production 钾/氰基共结合促进多孔超薄氮化碳中 2e- ORR 的选择性，从而实现光催化 H2O2 生产

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-20 DOI: 10.1016/j.solidstatesciences.2024.107669

Xunhuai Huang , Chengqian Zhou , Jinghan Yang , Peipei Sun , Yanhua Song , Ruya Ma , Xixiang Ding , Zhao Mo

{"title":"Potassium/cyano group co-incorporation promotes 2e− ORR selectivity in porous ultrathin carbon nitride for photocatalytic H2O2 production","authors":"Xunhuai Huang , Chengqian Zhou , Jinghan Yang , Peipei Sun , Yanhua Song , Ruya Ma , Xixiang Ding , Zhao Mo","doi":"10.1016/j.solidstatesciences.2024.107669","DOIUrl":"10.1016/j.solidstatesciences.2024.107669","url":null,"abstract":"<div>Photocatalysis is a promising strategy for the production of H2O2, but the promotion of 2e− ORR selectivity remains a challenging goal in this field. Herein, Potassium (K+), cyano groups (-C<img>≡N) and porous ultrathin structures were introduced into g-C3N4 simultaneously by the hyphenated technique of gas template method and molten salt-assisted method. The K+ and –C<img>≡N can broaden the light absorption range, improve the reduction ability and promote electron transfer of the catalyst. Additionally, the presence of a permeable ultrathin structure plays a crucial role in improving the specificity of the 2e− oxygen reduction reaction (ORR). Benefiting from the multiple advantages, the H2O2 yield of K+ intercalated cyano-rich porous ultrathin g-C3N4 (KUCN) reached 781.39 μM with an extraordinary 2e− ORR selectivity of 94.5% (0.30 V vs. RHE). Overall, this study presents a practical approach for designing catalysts based on g-C3N4 that exhibit a high selectivity for the 2e− ORR reaction.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107669"},"PeriodicalIF":3.4,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142040264","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

Control physicochemical and electrochemical properties of Pr1.6Cа0.4Ni0.6Cu0.4O4+δ as a prospective cathode material for solid oxide cells through the synthesis process 通过合成工艺控制 Pr1.6Cа0.4Ni0.6Cu0.4O4+δ 的物理化学和电化学性质，使其成为固态氧化物电池的前瞻性阴极材料

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-19 DOI: 10.1016/j.solidstatesciences.2024.107671

Tatiana Zhulanova , Elena Filonova , Anastasiya Ivanova , Olga Russkikh , Elena Pikalova

{"title":"Control physicochemical and electrochemical properties of Pr1.6Cа0.4Ni0.6Cu0.4O4+δ as a prospective cathode material for solid oxide cells through the synthesis process","authors":"Tatiana Zhulanova , Elena Filonova , Anastasiya Ivanova , Olga Russkikh , Elena Pikalova","doi":"10.1016/j.solidstatesciences.2024.107671","DOIUrl":"10.1016/j.solidstatesciences.2024.107671","url":null,"abstract":"<div>The aim of this work is to establish the relationship between the electrochemical performance of the Pr1.6Cа0.4Ni0.6Cu0.4O4+δ-based electrodes and the properties of the electrode powders, conditioned by their synthesis history, as well as the electrode design and the sintering conditions of the electrode layers. The Pr1.6Cа0.4Ni0.6Cu0.4O4+δ (PCNCO) powders are synthesized by combustion of salt compositions using different fuels: glycine, polyvinyl alcohol and citric acid. The influence of the composition of the redox mixture on the synthesis process, the phase composition of the obtained powders and their properties have been studied. The microstructure of the PCNCO electrodes formed from the powders with different dispersions is studied by electron microscopy. The electrochemical performance of the electrodes in contact with the Ce0.8Sm0.2O1.9 (SDC) electrolyte is studied by impedance spectroscopy. Based on the correlations established between the chemical stability and dispersion of the powders and the microstructure and polarization resistance of the corresponding electrodes, the optimal parameters for the synthesis of the PCNCO complex oxide for the use as a cathode material have been determined. The lowest polarization resistance equal to 0.38 Ω cm2 at 700 °C is obtained for the bilayer electrode with the PCNCO functional layer synthesized by the citrate-nitrate combustion and sintered at 1050 °C, and the LaNi0.6Fe0.4O3–δ oxide collector sintered at 900 °C. The developed synthesis procedure and electrode design can be recommended as promising for the fabrication of air electrodes in the intermediate-temperature electrochemical devices.</div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"156 ","pages":"Article 107671"},"PeriodicalIF":3.4,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044776","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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Synthesis, morphology and Raman spectroscopy of ZnS/Ag2S heteronanostructures ZnS/Ag2S 异质结构的合成、形貌和拉曼光谱分析

IF 3.4 3区化学

Solid State Sciences Pub Date : 2024-08-16 DOI: 10.1016/j.solidstatesciences.2024.107662

S.I. Sadovnikov, I.I. Leonidov, A.I. Gusev

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