Journal of Materials Chemistry C最新文献

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Room-temperature selective NO2 sensing using porous TiO2 nanorods via a humidity-mediated conduction 利用多孔二氧化钛纳米棒通过湿度介导的传导进行室温选择性二氧化氮传感
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-24 DOI: 10.1039/D6TC00658B
Young Geun Song, Suk Yeop Chun, Yumin Park, Ilho Myeong, Young-Seok Shim and Chong-Yun Kang
{"title":"Room-temperature selective NO2 sensing using porous TiO2 nanorods via a humidity-mediated conduction","authors":"Young Geun Song, Suk Yeop Chun, Yumin Park, Ilho Myeong, Young-Seok Shim and Chong-Yun Kang","doi":"10.1039/D6TC00658B","DOIUrl":"https://doi.org/10.1039/D6TC00658B","url":null,"abstract":"<p >The development of room-temperature (RT) NO<small><sub>2</sub></small> gas sensors with high sensitivity and selectivity is essential for real-time environmental monitoring. Here, we demonstrate an ionic-mediated sensing strategy using highly porous TiO<small><sub>2</sub></small> nanorods (NRs). The vertically aligned architecture enhances hydroxyl coverage and enables proton hopping pathways under humid conditions, leading to a transition from electronic hopping conduction in dry air to proton-dominated conduction in humid environments. The TiO<small><sub>2</sub></small> NR sensors achieve ultrafast detection at RT, with response and recovery times of approximately 5 s and 7 s toward 2 ppm NO<small><sub>2</sub></small>. A high response of approximately 670 and a theoretical detection limit of 505 ppt are obtained at 40% relative humidity. Comparable responses at 20% RH under higher bias demonstrate a broadened operational humidity window. The sensors exhibit excellent repeatability with a coefficient of variation of 3.87% and strong selectivity with negligible responses to reducing gases. These results highlight ionic-mediated TiO<small><sub>2</sub></small> NRs as a practical platform for low-power, NO<small><sub>2</sub></small> sensing at RT with bias-tunable humidity adaptability.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 22","pages":" 9822-9831"},"PeriodicalIF":5.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lasing from ordered colloidal micro-resonator arrays to random distributed systems 从有序胶体微谐振器阵列到随机分布系统的激光
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-24 DOI: 10.1039/D6TC00581K
Konrad Cyprych, Jastin Poplawski and Jaroslaw Mysliwiec
{"title":"Lasing from ordered colloidal micro-resonator arrays to random distributed systems","authors":"Konrad Cyprych, Jastin Poplawski and Jaroslaw Mysliwiec","doi":"10.1039/D6TC00581K","DOIUrl":"https://doi.org/10.1039/D6TC00581K","url":null,"abstract":"<p >While colloidal microstructures are widely utilized to engineer ordered micro-resonator arrays with precise optical responses, intentionally harnessing their inherent structural randomness opens new ways for tailoring light–matter interactions. In this study, we investigate the profound impact of programmable structural disorder on the light-scattering and emission properties of colloidal micro-assemblies. Focusing on a dye-doped polymer system incorporating hollow silica microspheres, we demonstrate how controlled stochasticity alignment modulates the dominant optical feedback mechanisms. By manipulating surface tension-driven self-assembly, we observe a continuous morphological evolution from locally ordered, two-dimensional micro-gratings arrays to highly scattering macro-aggregates. Crucially, we show that increasing this structural disorder alters the light amplification pathway, transforming the optical emission sequentially, from distinct, localized resonant modes within well-defined cavities, through non-resonant amplified spontaneous emission (ASE), and ultimately culminating in robust random lasing (RL). Our findings underscore that integrating self-assembly principles with deterministically controlled randomness provides a powerful strategy to precisely engineer the emission regimes of photonic materials.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 24","pages":" 10676-10685"},"PeriodicalIF":5.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/tc/d6tc00581k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of a P-rGO/CNTs@PANI ternary composite for supercapacitors with balanced energy–power performance 具有平衡能量功率性能的超级电容器用P-rGO/CNTs@PANI三元复合材料的构建
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-24 DOI: 10.1039/D6TC00543H
Jin Yan, Fuying Wang, Baoli Mao, Huabo Huang, Xianghua Yu, Jiayou Ji, Yijun Yu and Liang Li
{"title":"Construction of a P-rGO/CNTs@PANI ternary composite for supercapacitors with balanced energy–power performance","authors":"Jin Yan, Fuying Wang, Baoli Mao, Huabo Huang, Xianghua Yu, Jiayou Ji, Yijun Yu and Liang Li","doi":"10.1039/D6TC00543H","DOIUrl":"https://doi.org/10.1039/D6TC00543H","url":null,"abstract":"<p >This study presents the design of a multi-component composite, phosphate group-modified reduced graphene oxide/carbon nanotubes@polyaniline (P-rGO/CNTs@PANI), as a supercapacitor (SC) electrode. First, a core–shell structured CNTs@PANI structure was constructed <em>via in situ</em> polymerization of aniline on the surface of CNTs. Subsequently, utilizing phosphoric acid as a multifunctional medium, a one-step hydrothermal method was employed to simultaneously reduce and functionalize GO and form a composite together with CNTs@PANI. The covalent grafting of phosphate groups onto the reduced graphene oxide surface effectively inhibited layer restacking while establishing robust interfacial coupling with the PANI chains, thereby forming a conductive interpenetrating network. When the mass ratio of GO to CNTs@PANI was set as 1 : 3, the composite exhibited a specific capacitance of 389.8 F g<small><sup>−1</sup></small> at 1 A g<small><sup>−1</sup></small> and over 90% capacity retention after 10 000 cycles. The symmetric SC assembled with the P-rGO/CNTs@PANI electrodes achieved an energy density of 21.9 Wh kg<small><sup>−1</sup></small> and a power density of 500.9 W kg<small><sup>−1</sup></small>, and was capable of stably powering electronic devices. This research provides a novel strategy for the design of high-performance SC electrodes.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 23","pages":" 10046-10057"},"PeriodicalIF":5.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress and perspectives on Ti3C2Tx MXene-based composite materials for electromagnetic wave absorption Ti3C2Tx mxene基电磁波吸收复合材料的研究进展与展望
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-24 DOI: 10.1039/D6TC00609D
Benyi Li, Li Chang, Xinci Zhang and Lin Li
{"title":"Progress and perspectives on Ti3C2Tx MXene-based composite materials for electromagnetic wave absorption","authors":"Benyi Li, Li Chang, Xinci Zhang and Lin Li","doi":"10.1039/D6TC00609D","DOIUrl":"https://doi.org/10.1039/D6TC00609D","url":null,"abstract":"<p >The rapid progress of wireless communication technologies has greatly enhanced information transmission, but has also intensified the complexity of the electromagnetic environment. To address the resulting electromagnetic interference, growing research has focused on high-performance absorbing materials that are lightweight, adaptable, and efficient. Among emerging candidates, two-dimensional transition metal carbides (Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXenes) have attracted considerable attention. Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXenes possess unique layered structures, excellent electrical conductivity, abundant surface functional groups, and tunable defects, making them highly versatile for applications in energy storage, adsorption, and electromagnetic protection. In electromagnetic wave absorption, these properties enable strong attenuation, yet the inherent high conductivity often leads to poor impedance matching, limiting absorption efficiency. Recent studies have explored strategies such as elemental doping, calcination, magnetic modification, and composite construction to optimize Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene-based nanocomposites. This review summarizes the synthesis methods, structural characteristics, and electromagnetic absorption mechanisms of Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene-based composite materials, and discusses current challenges and future directions for their practical application in defense, medical, and related fields.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 19","pages":" 7990-8003"},"PeriodicalIF":5.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147978721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trehalose-enhanced anti-freezing conductive hydrogels with high stretchability and low hysteresis for flexible human–machine interaction 海藻糖增强抗冻导电水凝胶,具有高拉伸性和低迟滞性,适用于灵活的人机交互
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-24 DOI: 10.1039/D6TC00646A
Fangying Lu, Jingye Liang, Xiya Shan, Hanbing Yu, Yiqiong Zhang, Qian Ji, Aoyun Ren and Run Wang
{"title":"Trehalose-enhanced anti-freezing conductive hydrogels with high stretchability and low hysteresis for flexible human–machine interaction","authors":"Fangying Lu, Jingye Liang, Xiya Shan, Hanbing Yu, Yiqiong Zhang, Qian Ji, Aoyun Ren and Run Wang","doi":"10.1039/D6TC00646A","DOIUrl":"https://doi.org/10.1039/D6TC00646A","url":null,"abstract":"<p >Conductive hydrogels are regarded as highly promising flexible sensing matrix materials due to their unique three-dimensional conductive network structure, high flexibility, tunable mechanical properties, and excellent ionic conductivity. However, the fabrication of flexible hydrogel sensors simultaneously achieving high stretchability, low hysteresis, anti-freezing properties, and conductivity remains a critical challenge. In this study, an ionic-conductive double-network hydrogel is prepared <em>via</em> thermal free radical copolymerization by integrating trehalose and lithium chloride (LiCl) into a polyacrylamide (PAM)/polyvinyl alcohol (PVA) double-network structure. Attributed to the dynamic hydrogen bonding network of trehalose that facilitates reversible energy dissipation and the ionic conductivity of LiCl, the prepared hydrogel exhibited high stretchability (1202.0%), low mechanical hysteresis (&lt;3.0%), anti-freezing properties (−27.5 °C), and ionic conductivity (1.5 S m<small><sup>−1</sup></small>). Furthermore, the assembled strain sensors and smart gloves enable sensitive detection of human motions, Morse code encoding transmission, and gesture recognition for robotic hands, highlighting the immense application potential of this hydrogel in human–machine interaction and wearable devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 18","pages":" 7515-7524"},"PeriodicalIF":5.1,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147923922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser-architected vertical micro-channel arrays in thick graphene electrodes for high-rate zinc-ion hybrid capacitors 用于高速率锌离子混合电容器的厚石墨烯电极激光结构垂直微通道阵列
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-23 DOI: 10.1039/D6TC00185H
Yudong Wang, Jun Kang, Jixiang Zhang, Yanping Song, Zhao Li, Na Hong, Shudong Zhang, Cui Liu, Min Xi, Zhenyang Wang and Nian Li
{"title":"Laser-architected vertical micro-channel arrays in thick graphene electrodes for high-rate zinc-ion hybrid capacitors","authors":"Yudong Wang, Jun Kang, Jixiang Zhang, Yanping Song, Zhao Li, Na Hong, Shudong Zhang, Cui Liu, Min Xi, Zhenyang Wang and Nian Li","doi":"10.1039/D6TC00185H","DOIUrl":"https://doi.org/10.1039/D6TC00185H","url":null,"abstract":"<p >Thick electrodes are pivotal for high-energy-density storage but typically suffer from kinetic limitations as thickness increases. Herein, we report a template-free, laser-enabled manufacturing strategy to construct monolithic thick graphene electrodes with a thickness of approximately 500 µm featuring arrayed vertical channels. Utilizing the intrinsic thermal localization effect of the porous framework, 1064 nm laser pulses precisely engineer low-tortuosity vertical ion transport pathways within a commercial-level mass-loading matrix (&gt;10 mg cm<small><sup>−2</sup></small>). Multi-scale characterization reveals that the laser ablation induces a site-selective functionalization: while the bulk conductive skeleton remains structurally and chemically intact to ensure high electronic conductivity, the channel edges are locally activated with abundant defects and highly hydrophilic sites. This hierarchical architecture transforms the diffusion kinetics from a macroscopic thickness scale to a microscopic radial diffusion scale, successfully facilitating electrolyte penetration into previously kinetically inaccessible deep-seated active sites. Consequently, the optimized electrode achieves a superior areal capacitance of 434.0 mF cm<small><sup>−2</sup></small> at 20 mA cm<small><sup>−2</sup></small> with a high rate retention of 62.9%. The assembled zinc-ion hybrid capacitor delivers a high areal energy density of 166.8 µWh cm<small><sup>−2</sup></small> and robust cyclability, maintaining 95.1% capacity retention over 20 000 cycles. This work offers an efficient geometric optimization pathway for next-generation high-loading electronics.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 24","pages":" 10705-10717"},"PeriodicalIF":5.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TiO2-driven enhancement of electrochromic performance of polymer electrolytes: insights and mechanisms 二氧化钛驱动的聚合物电解质电致变色性能的增强:见解和机制
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-23 DOI: 10.1039/D6TC00134C
Wei Wang, Siqi Wang, Yan Wang, Di Rong, Ruize Yuan, Zaiqian Yu and Shiwei Wang
{"title":"TiO2-driven enhancement of electrochromic performance of polymer electrolytes: insights and mechanisms","authors":"Wei Wang, Siqi Wang, Yan Wang, Di Rong, Ruize Yuan, Zaiqian Yu and Shiwei Wang","doi":"10.1039/D6TC00134C","DOIUrl":"https://doi.org/10.1039/D6TC00134C","url":null,"abstract":"<p >In recent years, electrochromic laminated glass has been widely used in automobiles and buildings due to its comfort and energy efficiency; however, its promotion is limited due to its complex structure. Herein, a TiO<small><sub>2</sub></small> enhanced conductive polyvinyl butyral (PVB) film has been constructed by a blending process. Its ionic conductivity can reach as high as 9.6 × 10<small><sup>−4</sup></small> S cm<small><sup>−1</sup></small>, which is attributed to the higher number of lithium ion transport channels in the composite film. Also, a corresponding electrochromic device (ECD) with a FTO/WO<small><sub>3</sub></small>/PVB/NiO/FTO structure and dimensions of 10 × 10 cm<small><sup>2</sup></small> was assembled <em>via</em> a hot press process, and the enhancement in electrochromic performance was systematically evaluated. The tensile strength reached 34.6 MPa, the elongation at break reached 141%, and the adhesive strength was 5.5 MPa, which is equivalent to an automotive grade PVB film. Drop ball tests show that, for a 190 cm drop height with a 30 g mass, the device loses only 1.2% of its mass, which confirms its excellent safety. The device not only exhibited a fast response time of 4 s at a low voltage of ±3 V, but also demonstrated excellent electrochemical stability and cycling reversibility over 10 000 CV cycles. This work clarifies the coupling relationship between ion transport and device color change, demonstrating the potential application value in ECDs. Subsequent research can further integrate interfacial engineering strategies to advance the integration and application of CPE in practical devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 23","pages":" 10315-10322"},"PeriodicalIF":5.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In situ observation of ferroelectric–antiferroelectric structural evolution in Sr-modulated sodium niobate and unraveling the polarization origin sr调制铌酸钠中铁电-反铁电结构演化的原位观察及极化起源的揭示
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-23 DOI: 10.1039/D6TC00228E
Changming Zhu, Si Lu, Xinlin Jiang, Liguang Wang, Qingyi Wang, Guibo Yu and Houbing Zhou
{"title":"In situ observation of ferroelectric–antiferroelectric structural evolution in Sr-modulated sodium niobate and unraveling the polarization origin","authors":"Changming Zhu, Si Lu, Xinlin Jiang, Liguang Wang, Qingyi Wang, Guibo Yu and Houbing Zhou","doi":"10.1039/D6TC00228E","DOIUrl":"https://doi.org/10.1039/D6TC00228E","url":null,"abstract":"<p >Precisely modulating the stability of different electrical orderings is a central research direction in dielectrics, which plays a critical role in both the functional design of related electronic devices and the in-depth understanding of the transition pathways and origins among various ordering states. As a classical theoretical framework for regulating electrical ordering in perovskites, the tolerance factor rule has been extensively verified and applied in numerous systems. However, recent studies have indicated that this typical golden criterion faces significant challenges when applied to the NaNbO<small><sub>3</sub></small> (NN) system, because of its complex crystal structure and multiple electrical ordering transitions. Therefore, it is urgently necessary to expand multidimensional control parameters to advance the insights into electrical ordering regulation in NN-based systems. Previous work has shown that the antiferroelectricity in NN is closely related to the intrinsic characteristic of the relatively light A-site Na atoms. Based on this, the Na<small><sub>1–2<em>x</em></sub></small>Sr<small><sub><em>x</em></sub></small>NbO<small><sub>3</sub></small> (NSN) ceramic system is designed in this work, where Sr<small><sup>2+</sup></small> doping introduces a dual competitive effect involving heavier A-site ions to disrupt antiferroelectricity and a reduced tolerance factor to stabilize antiferroelectric order. This strategy aims to explore additional electrical-ordering regulation approaches in NN-based materials beyond the conventional tolerance factor method, as well as the coupling mechanisms between different regulatory factors. Furthermore, <em>in situ</em> Raman spectroscopy is employed to precisely capture the evolution of various phonon vibrations under external fields, enabling a detailed analysis of the dynamic evolution of the electrical ordering structure in the NSN series. The results indicate that Sr<small><sup>2+</sup></small> doping further reduces the free energy barrier between the ferroelectric and antiferroelectric phases, stabilizing the ferroelectric phase at room temperature. Additionally, the intrinsic ferroelectric order is induced in the low-temperature antiferroelectric region, by disrupting the antiparallel displacement of A-site ions and the antiparallel tilting of adjacent NbO<small><sub>6</sub></small> octahedra. This study focuses on NN-based materials to investigate the evolution of multiple electrical orderings in dielectrics, thereby providing an important research foundation for improving comprehension of the phase transition mechanism among different electrical orderings, and for designing NN-based electronic devices with coexistence of multiple electrical orderings.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 24","pages":" 10600-10612"},"PeriodicalIF":5.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Role of redox-active centres and charge density in covalent organic networks for energy storage applications as high-performance asymmetric supercapacitors 氧化还原活性中心和电荷密度在作为高性能非对称超级电容器储能应用的共价有机网络中的作用
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-23 DOI: 10.1039/D6TC00337K
Koustab Chowdhury, Nikita Ahlawat, Love Bansal, Sayantan Sarkar, Plabani Samanta, Rajesh Kumar and Suman Mukhopadhyay
{"title":"Role of redox-active centres and charge density in covalent organic networks for energy storage applications as high-performance asymmetric supercapacitors","authors":"Koustab Chowdhury, Nikita Ahlawat, Love Bansal, Sayantan Sarkar, Plabani Samanta, Rajesh Kumar and Suman Mukhopadhyay","doi":"10.1039/D6TC00337K","DOIUrl":"https://doi.org/10.1039/D6TC00337K","url":null,"abstract":"<p >Global energy concerns are escalating daily as fossil fuel consumption rises. Therefore, the development of clean energy storage systems is crucial for mitigating environmental pollution and ensuring a secure energy future. Therefore, metal-free porous organic networks are emerging platforms, as they are utilized as electrodes for energy storage devices due to their excellent stability in harsh conditions, and the redox-active polymeric backbone promotes better charge storage capability. Although conjugated porous networks are being explored due to their excellent charge stabilization, the field of non-conjugated systems remains relatively challenging. In this work, we explore insights into non-conjugated systems and tune the performance of the networks, with a focus on redox centers and charge density. Three porous covalent organic networks, <strong>CON-1</strong>, <strong>CON-2</strong> and <strong>CON-3</strong>, were designed and synthesized. Among the three networks, the multiple redox-active centre-based polymer <strong>CON-1</strong> showed enhanced supercapacitive performance due to the greater number of interaction sites with electrolyte ions compared to the other networks. Triazine and anthraquinone-based <strong>CON-1</strong> achieved a specific capacitance of 70 F g<small><sup>−1</sup></small> at a current density of 0.5 A g<small><sup>−1</sup></small> in a three-electrode setup. The asymmetric device of <strong>CON-1//AC</strong> achieved 72.9 mF cm<small><sup>−2</sup></small> at a current density of 0.1 mA cm<small><sup>−2</sup></small>. GCD plots confirm its fast-charging ability, and due to its pseudocapacitive nature, it requires more discharging time compared with other reported state-of-the-art electrode materials. After 2000 switching cycles, <strong>CON-1</strong> retains 91.9% of its initial specific capacitance, confirming the material's excellent stability in harsh conditions, which promotes its practical applicability. The practical applicability of the device was validated by its ability to power multiple light-emitting diodes (LEDs) for several minutes following a short charging duration, demonstrating efficient energy storage and sustained power delivery.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 24","pages":" 10755-10764"},"PeriodicalIF":5.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress in pyrargyrite: synthesis, properties, applications, and future directions 黄铁矿的研究进展:合成、性质、应用及未来发展方向
IF 5.1 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2026-04-23 DOI: 10.1039/D5TC03373J
Meenakshi Gusain
{"title":"Research progress in pyrargyrite: synthesis, properties, applications, and future directions","authors":"Meenakshi Gusain","doi":"10.1039/D5TC03373J","DOIUrl":"https://doi.org/10.1039/D5TC03373J","url":null,"abstract":"<p >The increasing demand for inorganic materials aimed at improving performance in harnessing renewable energy resources has driven research into semiconducting metal sulfides. Metal sulfides are promising materials with multidimensional properties for multifaceted applications. In the present review, a thorough study was carried out on the recent development of Ag<small><sub>3</sub></small>SbS<small><sub>3</sub></small> (ASS) semiconductor materials. While there are several reviews on ternary metal chalcogenides, and this present article focuses on the integrated analysis of ASS. The exceptional structural, physical, chemical, and optical properties of ASS make it novel for scientific research and technological applications. This review provides an overview of the synthesis methodology of ASS, including soft-chemical synthesis and thin-film techniques. Furthermore, analytical instrumental techniques used for its characterization and applications are introduced. This review also accentuates the usage of ASS as a catalyst, photovoltaic absorber, and electrode material. It presents insights into the future perspectives for advancements in ASS. Keeping this in view, research on ASS is expected to focus on the intelligent design of its hybrids, optimization of sustainable and environment-friendly methodologies, and expansion of application domains to realize their full potential. This review will provide guidance to researchers working on inorganic metal sulfides and their composites, especially ASS.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 8890-8915"},"PeriodicalIF":5.1,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148146917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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