Pub Date : 2025-11-25DOI: 10.1016/j.matlet.2025.139867
Zishuo Zhang , Jialing Mao , Xinlan Ding , Chengze Wu , Sai Zhang
A chiral 3D polymer with aggregation-induced emission(AIE) was synthesized via Suzuki cross-coupling of benzofuran derivatives. Structural and photophysical characterization confirmed its AIE behavior and uniform morphology. The polymer functioned as a highly selective fluorescence probe for Cr6+, exhibiting significant quenching with a micromolar detection limit. Its unique 3D architecture facilitates exceptional ion selectivity, making it a promising sensor for environmental monitoring.
{"title":"Multi-layer 3D polymer probe with AIE activity for selective Cr6+ monitoring","authors":"Zishuo Zhang , Jialing Mao , Xinlan Ding , Chengze Wu , Sai Zhang","doi":"10.1016/j.matlet.2025.139867","DOIUrl":"10.1016/j.matlet.2025.139867","url":null,"abstract":"<div><div>A chiral 3D polymer with aggregation-induced emission(AIE) was synthesized via Suzuki cross-coupling of benzofuran derivatives. Structural and photophysical characterization confirmed its AIE behavior and uniform morphology. The polymer functioned as a highly selective fluorescence probe for Cr<sup>6+</sup>, exhibiting significant quenching with a micromolar detection limit. Its unique 3D architecture facilitates exceptional ion selectivity, making it a promising sensor for environmental monitoring.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139867"},"PeriodicalIF":2.7,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1016/j.matlet.2025.139851
Yi Xiong , Huan Gao , Haomin Zhang , Siqi Xue , Rui Gao , Zhouyueyang Cheng , Huixing Dai
As an important temporary residential structure, tents face significant deficiencies in thermal comfort. This study aims to develop a novel composite tent fabric with efficient temperature-self-regulating capability using phase change material (PCM). The methods involved using cetyltrimethylammonium bromide (CTAB) to increase the interlayer spacing of montmorillonite (MMT), thereby obtaining organically modified montmorillonite (OMMT). Subsequently, paraffin wax (PW) was employed as PCM and PW/OMMT was prepared via the melt intercalation method. Finally, the PW/OMMT was integrated with tent fabric to produce the PW/OMMT tent fabric with self-temperature regulating functionality. The interlayer spacing of MMT was increased from 1.499 nm to 1.924 nm, yielding a composite tent fabric with enhanced thermal regulation. Notably, the fabric's surface temperature decreased by 2.5 °C under heating and increased by 3.5 °C during cooling, demonstrating a significant enhancement. This study thus provides an effective approach to advanced thermal management in tents.
{"title":"Preparation and characterization of paraffin wax/ montmorillonite composite phase change material and its application in tent fabric","authors":"Yi Xiong , Huan Gao , Haomin Zhang , Siqi Xue , Rui Gao , Zhouyueyang Cheng , Huixing Dai","doi":"10.1016/j.matlet.2025.139851","DOIUrl":"10.1016/j.matlet.2025.139851","url":null,"abstract":"<div><div>As an important temporary residential structure, tents face significant deficiencies in thermal comfort. This study aims to develop a novel composite tent fabric with efficient temperature-self-regulating capability using phase change material (PCM). The methods involved using cetyltrimethylammonium bromide (CTAB) to increase the interlayer spacing of montmorillonite (MMT), thereby obtaining organically modified montmorillonite (OMMT). Subsequently, paraffin wax (PW) was employed as PCM and PW/OMMT was prepared via the melt intercalation method. Finally, the PW/OMMT was integrated with tent fabric to produce the PW/OMMT tent fabric with self-temperature regulating functionality. The interlayer spacing of MMT was increased from 1.499 nm to 1.924 nm, yielding a composite tent fabric with enhanced thermal regulation. Notably, the fabric's surface temperature decreased by 2.5 °C under heating and increased by 3.5 °C during cooling, demonstrating a significant enhancement. This study thus provides an effective approach to advanced thermal management in tents.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139851"},"PeriodicalIF":2.7,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145733603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-25DOI: 10.1016/j.matlet.2025.139861
Youyu Zhu , Zonglin You , Yixi Zhang , Zheng Liu , Yingfeng Duan , Xue Wang , Jin Wang , Jiao Xie , Yating Zhang
Gel polymer electrolytes are key components in flexible energy storage, yet often suffer from low ionic conductivity. This study presents a facile strategy to fabricate a dual-network hydrogel via free-radical polymerization of polyacrylamide (PAM) and complexation of Fulvic Acid (FA) with Zn2+. The resulting PAM@FA hydrogel exhibits high mechanical strength and excellent ionic conductivity due to synergistic network effects. Employing this hydrogel electrolyte, both coin-type and flexible quasi-solid-state Zn-MnO2 batteries were assembled, demonstrating high energy density, outstanding cycling durability, and excellent bending tolerance. This work provides new opportunities for advanced hydrogel electrolytes.
{"title":"Composite gel polymer electrolyte with high toughness and high ionic conductivity for aqueous zinc-ion batteries","authors":"Youyu Zhu , Zonglin You , Yixi Zhang , Zheng Liu , Yingfeng Duan , Xue Wang , Jin Wang , Jiao Xie , Yating Zhang","doi":"10.1016/j.matlet.2025.139861","DOIUrl":"10.1016/j.matlet.2025.139861","url":null,"abstract":"<div><div>Gel polymer electrolytes are key components in flexible energy storage, yet often suffer from low ionic conductivity. This study presents a facile strategy to fabricate a dual-network hydrogel via free-radical polymerization of polyacrylamide (PAM) and complexation of Fulvic Acid (FA) with Zn<sup>2+</sup>. The resulting PAM@FA hydrogel exhibits high mechanical strength and excellent ionic conductivity due to synergistic network effects. Employing this hydrogel electrolyte, both coin-type and flexible quasi-solid-state Zn-MnO<sub>2</sub> batteries were assembled, demonstrating high energy density, outstanding cycling durability, and excellent bending tolerance. This work provides new opportunities for advanced hydrogel electrolytes.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139861"},"PeriodicalIF":2.7,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study prepared Ti6Al4V/NbC composite coatings using laser deposition technology to investigate the in-situ precipitation behavior of TiC reinforcement phase and its effect on wear resistance. Results show that TiC content first increases then decreases with rising laser power, mainly due to laser power's regulation of molten pool temperature and TiC precipitation. The precipitation amount directly determines coating hardness and wear resistance. At 1000 W, 1200 W and 1400 W, TiC area fractions are 0.24 %, 2.48 % and 1.99 % respectively, with corresponding average microhardness of 366.5 HV₀.₂, 396.3 HV₀.₂ and 386.3 HV₀.₂. Wear test results corroborate this trend; the coating deposited at 1200 W exhibits superior wear performance, characterized by a friction coefficient of 0.413, a wear loss of 11.5 mg, and predominant adhesive-abrasive wear mechanisms.
{"title":"Evolutionary mechanism of TiC in situ precipitation and wear resistance of Ti6Al4V/NbC deposited by laser deposition under different laser powers","authors":"Hongyou Bian, Xingzhou Qi, Weijun Liu, Wenchao Xi, Ziming Zhao, Guangtai Zhang, Peng Sun","doi":"10.1016/j.matlet.2025.139830","DOIUrl":"10.1016/j.matlet.2025.139830","url":null,"abstract":"<div><div>This study prepared Ti6Al4V/NbC composite coatings using laser deposition technology to investigate the in-situ precipitation behavior of TiC reinforcement phase and its effect on wear resistance. Results show that TiC content first increases then decreases with rising laser power, mainly due to laser power's regulation of molten pool temperature and TiC precipitation. The precipitation amount directly determines coating hardness and wear resistance. At 1000 W, 1200 W and 1400 W, TiC area fractions are 0.24 %, 2.48 % and 1.99 % respectively, with corresponding average microhardness of 366.5 HV₀.₂, 396.3 HV₀.₂ and 386.3 HV₀.₂. Wear test results corroborate this trend; the coating deposited at 1200 W exhibits superior wear performance, characterized by a friction coefficient of 0.413, a wear loss of 11.5 mg, and predominant adhesive-abrasive wear mechanisms.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139830"},"PeriodicalIF":2.7,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145584249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-22DOI: 10.1016/j.matlet.2025.139845
Xiaoyu Qin , Huan Liu , Hao Lei , Ziyue Xu , Chao Sun , Yue Zhang , Jia Ju , Yuna Wu , Jinghua Jiang , Jiang Ma
Here, we present a novel ultrasonic vibration compression (UVC) technique that enables the dual-phase Mg-9Li-1Al alloy to exhibit high strain rates (∼0.49 s−1), and large strain (∼1.6) super-malleability (circumferential elongation∼140 %) at room temperature within 2 s. Furthermore, the alloy after forming demonstrates excellent surface quality and a 17 % increase in microhardness. Preliminary application testing demonstrates that the proposed UVC technology is capable of effectively manufacturing magnesium alloy corrugated plates. This study may provide a new strategy for enhancing room-temperature formability and product manufacturing in magnesium alloys.
{"title":"Achieving rapid super-malleability at room temperature in a dual-phase Mg-9Li-1Al alloy via ultrasonic vibration compression and its potential manufacturing application","authors":"Xiaoyu Qin , Huan Liu , Hao Lei , Ziyue Xu , Chao Sun , Yue Zhang , Jia Ju , Yuna Wu , Jinghua Jiang , Jiang Ma","doi":"10.1016/j.matlet.2025.139845","DOIUrl":"10.1016/j.matlet.2025.139845","url":null,"abstract":"<div><div>Here, we present a novel ultrasonic vibration compression (UVC) technique that enables the dual-phase Mg-9Li-1Al alloy to exhibit high strain rates (∼0.49 s<sup>−1</sup>), and large strain (∼1.6) super-malleability (circumferential elongation∼140 %) at room temperature within 2 s. Furthermore, the alloy after forming demonstrates excellent surface quality and a 17 % increase in microhardness. Preliminary application testing demonstrates that the proposed UVC technology is capable of effectively manufacturing magnesium alloy corrugated plates. This study may provide a new strategy for enhancing room-temperature formability and product manufacturing in magnesium alloys.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139845"},"PeriodicalIF":2.7,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145622332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-22DOI: 10.1016/j.matlet.2025.139839
Yi Zhao , Dongsheng Ran , Fanyi Kong , Lu Cheng , Wenfeng Liu
Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.
{"title":"Enhanced dielectric tunability and improved temperature stability of Mn-doped BaTiO3-BaZrO3 multilayer ceramics","authors":"Yi Zhao , Dongsheng Ran , Fanyi Kong , Lu Cheng , Wenfeng Liu","doi":"10.1016/j.matlet.2025.139839","DOIUrl":"10.1016/j.matlet.2025.139839","url":null,"abstract":"<div><div>Composition gradient Mn-doped barium zirconium titanate (BZT) multilayer ceramics with large dielectric tunability and improved temperature stability were prepared by the conventional solid-state reaction. Microstructure and dielectric properties of the Mn-doped BZT multilayer ceramics were investigated. Fine grains, dense microstructure, and intact interfaces between adjacent layers were observed. Dielectric tunability and temperature stability were focused on in this work. Improved temperature stability for dielectric properties is benefited from effectively broadened dielectric peaks. Large dielectric tunability of 87.7% was obtained at room temperature. Furthermore, a reduced coefficient of variation of 7.7% confirmed a superior temperature stability of the dielectric tunability quantitatively. BZT multilayer ceramics with both large dielectric tunability and improved temperature stability exhibited considerable potential for tunable device applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139839"},"PeriodicalIF":2.7,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145622333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, a cation substitution strategy was applied to enhance the electrochemical performance of MgMn2O4 spinel. MgMnMO4 (M = Ni, Co, Ga) compounds were synthesized via the partially substitution of Mn with Ni, Co, or Ga. All doped materials exhibit a mixed spinel structure with multivalent cations (Mn2+/3+/4+, Ni2+/3+, Co2+/3+). Among them, Ni-doped MgMn2O4 sample shows the lowest inversion degree and the best electrochemical performance, delivering an initial discharge capacity of 1635.3 mAh g−1 and retaining 790 mAh g−1 after 150 cycles. It also demonstrates excellent cycling stability and capacity recovery even at high current densities, thus highlighting significant potential for energy storage applications.
在本研究中，采用阳离子取代策略来提高MgMn2O4尖晶石的电化学性能。MgMnMO4 （M = Ni, Co, Ga）化合物是通过Ni， Co或Ga部分取代Mn合成的。所有掺杂材料均呈现出多价阳离子（Mn2+/3+/4+, Ni2+/3+, Co2+/3+）的混合尖晶石结构。其中，ni掺杂的MgMn2O4样品倒置程度最低，电化学性能最好，初始放电容量为1635.3 mAh g−1，循环150次后仍保持790 mAh g−1。即使在高电流密度下，它也表现出出色的循环稳定性和容量恢复，从而突出了储能应用的巨大潜力。
{"title":"Enhanced electrochemical performance of MgMnMO4 (M = Ni, Co, Ga) spinel via cation substitution","authors":"Zhenyan Wang, Shengxuan Yang, Chao Li, Dongxiao Cai, Dingrong Liu, Hechun Jiang, Bo Li, Xiulan Duan, Fapeng Yu","doi":"10.1016/j.matlet.2025.139835","DOIUrl":"10.1016/j.matlet.2025.139835","url":null,"abstract":"<div><div>In this study, a cation substitution strategy was applied to enhance the electrochemical performance of MgMn<sub>2</sub>O<sub>4</sub> spinel. MgMnMO<sub>4</sub> (M = Ni, Co, Ga) compounds were synthesized via the partially substitution of Mn with Ni, Co, or Ga. All doped materials exhibit a mixed spinel structure with multivalent cations (Mn<sup>2+/3+/4+</sup>, Ni<sup>2+/3+</sup>, Co<sup>2+/3+</sup>). Among them, Ni-doped MgMn<sub>2</sub>O<sub>4</sub> sample shows the lowest inversion degree and the best electrochemical performance, delivering an initial discharge capacity of 1635.3 mAh g<sup>−1</sup> and retaining 790 mAh g<sup>−1</sup> after 150 cycles. It also demonstrates excellent cycling stability and capacity recovery even at high current densities, thus highlighting significant potential for energy storage applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139835"},"PeriodicalIF":2.7,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145584252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-20DOI: 10.1016/j.matlet.2025.139828
Emine Karagoz, Cemre Oztop, Bora Okuyucu, Kerem Kaplanoglu, Mehmet Kurt, Cigdem Tuc Altaf, Mehmet Sankir, Nurdan Demirci Sankir
The development of photosupercapacitors for solar energy collection and storage is one of the most promising areas to power future technologies. In this study, we report the effects of three different morphologies of nanorods (NR), nanoflowers (NF), and nanosheets (NS) on the performance of zinc oxide (ZnO) semi-solid-state photosupercapacitors (QSS-PSCs). Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) measurements of QSS-PSCs under dark and AM1.5 conditions demonstrate that the morphology affects the charging time and, consequently, the specific capacitance (Cp) of the QSS-PSC. Among the ZnO:NR, ZnO:NF, and ZnO:NS PSCs, the highest surface area, charging time, and Cp were obtained with ZnO:NS-based devices. The ZnO:NS-based QSS-PSC demonstrated a fourfold improvement, increasing Cp from 586 Fg−1 in the dark to 2348 Fg−1 in the light at a scan rate of 1 mVs−1. Furthermore, the ZnO:NS QSS-PSC devices demonstrated high cycle stability, completing 16,000 cycles with 93 % Coulombic efficiency (%CE). This study demonstrated that ZnO nanostructures offer high potential for electrochemical energy storage devices that can be charged directly by sunlight through appropriate morphology selection and device design.
{"title":"High performance quasi-solid-state photo-supercapacitor based on zinc oxide nanostructured electrodes with various morphologies","authors":"Emine Karagoz, Cemre Oztop, Bora Okuyucu, Kerem Kaplanoglu, Mehmet Kurt, Cigdem Tuc Altaf, Mehmet Sankir, Nurdan Demirci Sankir","doi":"10.1016/j.matlet.2025.139828","DOIUrl":"10.1016/j.matlet.2025.139828","url":null,"abstract":"<div><div>The development of photosupercapacitors for solar energy collection and storage is one of the most promising areas to power future technologies. In this study, we report the effects of three different morphologies of nanorods (NR), nanoflowers (NF), and nanosheets (NS) on the performance of zinc oxide (ZnO) semi-solid-state photosupercapacitors (QSS-PSCs). Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) measurements of QSS-PSCs under dark and AM1.5 conditions demonstrate that the morphology affects the charging time and, consequently, the specific capacitance (C<sub>p</sub>) of the QSS-PSC. Among the ZnO:NR, ZnO:NF, and ZnO:NS PSCs, the highest surface area, charging time, and C<sub>p</sub> were obtained with ZnO:NS-based devices. The ZnO:NS-based QSS-PSC demonstrated a fourfold improvement, increasing C<sub>p</sub> from 586 Fg<sup>−1</sup> in the dark to 2348 Fg<sup>−1</sup> in the light at a scan rate of 1 mVs<sup>−1</sup>. Furthermore, the ZnO:NS QSS-PSC devices demonstrated high cycle stability, completing 16,000 cycles with 93 % Coulombic efficiency (%CE). This study demonstrated that ZnO nanostructures offer high potential for electrochemical energy storage devices that can be charged directly by sunlight through appropriate morphology selection and device design.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139828"},"PeriodicalIF":2.7,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145584251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
One novel vanadium-based terpyridine complex [TPY-V: VO(TPY) Cl2⋅DMSO] has been successfully synthesized with [2,2 ′:6',2″-terpyridine (TPY)]. Crystal structure analysis reveals TPY-V is a mononuclear complex. These mononuclear coordination units are stacked into a three-dimensional network structure through hydrogen bonding and π-π interactions. With TPY-V as the precursor, a series of vanadium-based composite materials coated with organic carbon frameworks (TPY-V@X, X = 300, 400, and 500, representing the calcination temperature) were obtained and applied as the anode materials for Na-ion battery.
以[2,2 ':6'，2″-三联吡啶（TPY）]为原料成功合成了一种新型钒基三联吡啶配合物[TPY- v: VO(TPY) Cl2⋅DMSO]。晶体结构分析表明TPY-V为单核配合物。这些单核配位单元通过氢键和π-π相互作用堆叠成三维网络结构。以TPY-V为前驱体，制备了一系列包覆有机碳框架（TPY-V@X, X = 300, 400, 500，分别代表煅烧温度）的钒基复合材料，作为钠离子电池负极材料。
{"title":"One vanadium-based terpyridine complex as an anode for sodium-ion batteries","authors":"Minghang Cui, Haode Zhang, Qiang Liu, Shengyun Liao","doi":"10.1016/j.matlet.2025.139831","DOIUrl":"10.1016/j.matlet.2025.139831","url":null,"abstract":"<div><div>One novel vanadium-based terpyridine complex [TPY-V: VO(TPY) Cl<sub>2</sub>⋅DMSO] has been successfully synthesized with [2,2 ′:6',2″-terpyridine (TPY)]. Crystal structure analysis reveals TPY-V is a mononuclear complex. These mononuclear coordination units are stacked into a three-dimensional network structure through hydrogen bonding and π-π interactions. With TPY-V as the precursor, a series of vanadium-based composite materials coated with organic carbon frameworks (TPY-V@X, X = 300, 400, and 500, representing the calcination temperature) were obtained and applied as the anode materials for Na-ion battery.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139831"},"PeriodicalIF":2.7,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145584248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nano- to micrometer-scale celluloses and absorbent cotton were treated with iodine vapor, and the effects on the pore-related properties (i.e., the surface areas, pore volumes, and pore-size distributions) of the resultant chars were investigated. The surface area and pore volume of the char prepared from cotton were higher than those of the chars prepared from nano- or microcellulose. With the iodine treatment, a large increase in the pore-related properties of the char prepared from microcellulose was observed. Chars prepared from the iodine-treated celluloses had a stable distribution of pores with sizes smaller than 5 nm. These results suggest that the iodine treatment can stabilize the micropores in celluloses.
{"title":"Preparation and pore properties of chars prepared from nano- to micrometer-scale celluloses and cotton with iodine treatment","authors":"Kazumasa Nakamura , Daisuke Izumi , Yoshikazu Teranishi , Tsugiko Takase","doi":"10.1016/j.matlet.2025.139829","DOIUrl":"10.1016/j.matlet.2025.139829","url":null,"abstract":"<div><div>Nano- to micrometer-scale celluloses and absorbent cotton were treated with iodine vapor, and the effects on the pore-related properties (i.e., the surface areas, pore volumes, and pore-size distributions) of the resultant chars were investigated. The surface area and pore volume of the char prepared from cotton were higher than those of the chars prepared from nano- or microcellulose. With the iodine treatment, a large increase in the pore-related properties of the char prepared from microcellulose was observed. Chars prepared from the iodine-treated celluloses had a stable distribution of pores with sizes smaller than 5 nm. These results suggest that the iodine treatment can stabilize the micropores in celluloses.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"406 ","pages":"Article 139829"},"PeriodicalIF":2.7,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145584250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号