Materials Chemistry Frontiers最新文献

{"title":"Light-induced open-loop products from a triphenylamine-functionalized π-conjugated pillar[5]arene and radical fluorescence emission†","authors":"Xu-Xu Jia, Xiao-Peng Ling, Shao-Ping Tao, Tai-Bao Wei, Qi Lin, Bingbing Shi, Hong Yao and Jin-Fa Chen","doi":"10.1039/D5QM00328H","DOIUrl":"https://doi.org/10.1039/D5QM00328H","url":null,"abstract":"<p >Pure organic luminescent radicals are of great importance in photoelectromagnetic materials. Designing and synthesizing novel radical systems with luminescence properties has always been a challenging task. Herein, we designed a pillar[5]arene-based π-conjugated macrocycle molecule (<strong>P5NA</strong>) capable of producing intriguing photochromic phenomena in chloroform solution, resulting in an open-loop biradical system (<strong>P5NA<small>²</small>˙</strong>) with unique fluorescence emission. The formation of the biradical luminescent system was confirmed using a range of analytical techniques, including UV/Vis absorption and fluorescence spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, <small>¹</small>H NMR, and density functional theory (DFT) calculations. This study provides a new paradigm for the design and synthesis of macrocycle molecule-based radical systems with luminescent properties.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 17","pages":" 2605-2610"},"PeriodicalIF":6.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868510","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}

{"title":"Platinum(ii) complexes bearing functionalized NHC-based pincer ligands: synthesis and application in phosphorescent OLEDs†","authors":"Purificación Cañadas, Michele Forzatti, Sara Fuertes, Antonio Martín, Michele Sessolo, Daniel Tordera and Violeta Sicilia","doi":"10.1039/D5QM00310E","DOIUrl":"https://doi.org/10.1039/D5QM00310E","url":null,"abstract":"<p >A set of neutral platinum(<small>II</small>) complexes bearing a bis-N-heterocyclic carbene (NHC) pincer ligand with stoichiometry [Pt(C<small>_R</small>*^C<small>^CN</small>^C<small>_R</small>*)L] (R = Me (<strong>a</strong>), Et (<strong>b</strong>); L = Cl (<strong>2</strong>), Cbz (<strong>3</strong>), and CN (<strong>4</strong>)) have been prepared. By employing the corresponding bisimidazolium salt (<strong>1a</strong> or <strong>1b</strong>), silver oxide and [PtCl<small>₂</small>(cod)] we obtained the Cl derivatives. Then, the subsequent ancillary ligand exchange rendered complexes <strong>3</strong> and <strong>4</strong>. Single-crystal X-ray analysis revealed no Pt–Pt contacts, but some π–π intermolecular interactions within the supramolecular structure of the Cl and CN derivatives. It also showed different crystal packings for the two polymorphs of the Cl complex (<strong>2b</strong>). In diluted solution, photophysical and computational studies disclosed the nature of the low-lying electronic transitions to be mainly <small>³</small>ILCT [π(C*^C^C*) → π*(C*^C^C*)]/<small>³</small>MLCT [5d(Pt) → π*(C*^C^C*)] for Cl and CN derivatives and L′LCT [π(Cbz) → π*(C*^C^C*)]/L′MCT [π(Cbz) → d(Pt)] for the Cbz counterpart. The blue (<strong>2b</strong>), green (<strong>3b</strong>) and yellowish-orange (<strong>4b</strong>) emissions of 2 wt% PMMA films at <em>λ</em><small>_ex</small> = 370 nm exhibited very high quantum yields (QYs) reaching up to ∼99%. However, at <em>λ</em><small>_ex</small> &gt; 400 nm, in the solid state or in 20 wt% PMMA films, additional structureless low-energy emissions arose from extended structures with a higher degree of aggregation. Complexes <strong>2b–4b</strong> were used as emitters in organic light-emitting diodes (OLEDs), either with a doped or a non-doped emissive layer. Interestingly, and due to their aggregation in extended structures, their emission could be tuned from bluish green to orange just by changing the thickness of the active layers. Devices with <strong>4b</strong> reached a maximum efficiency of 8.08% and a high luminance of 34 071 cd m<small>⁻²</small>.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2559-2570"},"PeriodicalIF":6.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d5qm00310e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773386","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}

{"title":"Outstanding Reviewers for Materials Chemistry Frontiers in 2024","authors":"","doi":"10.1039/D5QM90043C","DOIUrl":"https://doi.org/10.1039/D5QM90043C","url":null,"abstract":"<p >We would like to take this opportunity to thank all of <em>Materials Chemistry Frontiers</em>’ reviewers for helping to preserve quality and integrity in chemical science literature. We would also like to highlight the Outstanding Reviewers for <em>Materials Chemistry Frontiers</em> in 2024.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 15","pages":" 2286-2286"},"PeriodicalIF":6.0,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671316","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}

{"title":"New p-azaquinodimethane core based narrow-gap non-ring fused organic acceptor†","authors":"Irene E. Park, Souk Y. Kim, Laura E. Dickson, Pui Mei Helen Tse, Viki Kumar Prasad, Bruno Schmaltz, Benoît H. Lessard, Nutifafa Y. Doumon and Gregory C. Welch","doi":"10.1039/D5QM00355E","DOIUrl":"https://doi.org/10.1039/D5QM00355E","url":null,"abstract":"<p >The design and synthesis of <strong>sAQM-1</strong>, a <em>para</em>-azaquinodimethane-based non-ring fused organic π-conjugated molecule with an undemanding, metal-free synthetic route, is reported. <strong>sAQM-1</strong> exhibits a narrow optical gap, stabilized frontier molecular orbitals, strong intramolecular charge transfer, and tunable self-assembly properties. Compared to the ring-fused <strong>Y6</strong> acceptor, electronic energy levels are stabilized, and optical absorption red-shifted, demonstrating the potential of quinoidal scaffolds delivering atom economy and leading to narrow-gap organic electronic materials.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 18","pages":" 2722-2729"},"PeriodicalIF":6.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d5qm00355e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011347","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}

{"title":"Rational design of lead-free CsCu2I3@g-C3N4 composite for efficient energy storage and sustainable catalysis†","authors":"Montu Gogoi, Deepshikha Roy, Jita Morang, Nilakshi Dutta, Tarun Kumar Sahu, Diganta Sarma and Kalyanjyoti Deori","doi":"10.1039/D5QM00374A","DOIUrl":"https://doi.org/10.1039/D5QM00374A","url":null,"abstract":"<p >Rationally constructed lead-free halide perovskite-based composites provide an effective approach for upgrading their many unique physicochemical properties. In this study, we report the design and synthesis of a stable lead-free CsCu<small>₂</small>I<small>₃</small> (CCI) perovskite integrated with g-C<small>₃</small>N<small>₄</small> (CN) using a simple ultrasonication approach. The individual components, CsCu<small>₂</small>I<small>₃</small> and g-C<small>₃</small>N<small>₄</small>, were synthesized separately using the hot-injection method and the thermal polycondensation method, respectively. Interestingly, the composite material CsCu<small>₂</small>I<small>₃</small>@g-C<small>₃</small>N<small>₄</small> (CCI–CN) exhibited outstanding hybrid supercapacitive behaviour and opened a new avenue for the untapped electrochemical potential of Cu-based lead-free halide perovskites. The hybrid CCI–CN material was also examined, for the first time, as a heterogeneous multifunctional catalyst in the photo-hydration of benzonitrile and the photo-reduction of <em>para</em>-nitroaniline. Moreover, the synthesized composite catalyst was very efficient in the synthesis of the medicinally potent N-heterocyclic compounds, quinazolin-4(3<em>H</em>)-one moieties. It was observed that CsCu<small>₂</small>I<small>₃</small>@g-C<small>₃</small>N<small>₄</small> not only outperformed its individual components, CsCu<small>₂</small>I<small>₃</small> and g-C<small>₃</small>N<small>₄</small>, but also surpassed other reported catalysts in the aforementioned transformations, delivering excellent product yields. This was attributed to the cooperative and synergistic effects of the CsCu<small>₂</small>I<small>₃</small> and g-C<small>₃</small>N<small>₄</small> heterojunction. Photoluminescence studies revealed that the reduced recombination in the composite material provided a fast channel for the transfer of photo-generated electrons, with the lower PL lifetime of CCI–CN (119.8307 ns) compared to CCI (151.2798 ns). Hence, this study provides ideas and opportunities of Cu-based halide perovskite composites as efficient materials for charge storage and versatile catalytic activity.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 17","pages":" 2590-2604"},"PeriodicalIF":6.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868509","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}

{"title":"Biomass-derived materials empowering solid-state batteries: progress, challenges, and prospects","authors":"Songfeng Liang and Xiaoyu Wu","doi":"10.1039/D5QM00358J","DOIUrl":"https://doi.org/10.1039/D5QM00358J","url":null,"abstract":"<p >Solid-state batteries (SSBs) are considered the core of the next generation of energy storage technology due to their high safety and energy density. However, the commercialization of SSBs still faces challenges such as low ionic conductivity of solid electrolytes, poor electrode/electrolyte interface stability, and high material cost. In recent years, biomass-derived materials have attracted much attention for use in the key components of SSBs such as electrolytes and electrodes due to their renewability, low cost and unique chemical structure. In this paper, the latest research progress of biomass-derived materials in SSBs is systematically reviewed, focusing on their component and structural design, performance optimization mechanism and scale application potential, and the future development direction is proposed.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2450-2477"},"PeriodicalIF":6.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773402","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}

{"title":"A POM@CNT hybrid nanostructure enabling fast kinetics and high capacity in lithium-ion batteries†","authors":"Eman Gul, Zeeshan Haider, Tanveer Hussain Bokhari, Mashkoor Ahmad, Gul Rahman and Amjad Nisar","doi":"10.1039/D5QM00376H","DOIUrl":"https://doi.org/10.1039/D5QM00376H","url":null,"abstract":"<p >Polyoxometalates (POMs) are promising alternative electrode materials for lithium-ion batteries (LIBs) owing to their redox chemistry and high energy storage potential. However, their practical application is limited by inherent drawbacks such as low electrical conductivity and high solubility in electrolytes. To overcome these challenges, we synthesized a polyoxometalate–carbon nanotube hybrid nanostructure (POM@CNT) by wiring phosphomolybdic acid (PMo) with functionalized carbon nanotubes (CNTs) <em>via</em> electrostatic interactions. Comprehensive structural and electrochemical characterizations confirmed the formation of a stable, conductive hybrid network. The POM@CNT electrode delivers a remarkable initial discharge capacity of 2100 mAh g<small>⁻¹</small>, excellent rate capability and long-term cycling stability over 500 cycles, significantly outperforming electrodes based on PMo or CNTs alone. Electrochemical impedance spectroscopy (EIS) and density functional theory (DFT) analyses revealed that the hybrid structure enables faster charge transfer and enhanced Li<small>⁺</small> ion diffusion. The superior performance is attributed to the synergistic integration of PMo and CNTs, which promotes rapid electrochemical kinetics. This work highlights the potential of the POMs@CNT hybrid nanostructure as a high-performance and durable electrode material for lithium-ion storage, paving the way for further exploration of electroactive POM clusters in advanced energy storage systems.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2571-2580"},"PeriodicalIF":6.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773387","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}

{"title":"Efficient emission from exciplexes utilizing bidentate C^N ligand-containing bis(aryl)gold(iii) complexes as the acceptor components†","authors":"Huiyang Li, Kar-Wai Lo, Yang Zhou, Yuanhai Yi, Zhizhen Yuan, Jiang-Zhen Qiu, Xiangyu Ge, Liangliang Wu and Xuebo Chen","doi":"10.1039/D5QM00362H","DOIUrl":"https://doi.org/10.1039/D5QM00362H","url":null,"abstract":"<p >Exciplex emitters are promising candidates for the fabrication of efficient organic light-emitting diodes (OLEDs). Current research on the constituent molecules of exciplexes, particularly the acceptor components, has primarily focused on purely organic molecules, which limits their development. This study presents the design and synthesis of three new bidentate gold(<small>III</small>) complexes featuring two electron-deficient monodentate aryl ligands, which serve as effective acceptors for exciplex formation with the organic donor 4,4′-cyclohexylidenebis[<em>N</em>,<em>N</em>-bis(<em>p</em>-tolyl)aniline] (TAPC). The resulting exciplexes demonstrate high photoluminescence quantum yields (<em>Φ</em>) of up to 68% and short emission decay times ranging from 2.18 to 4.11 μs, indicating efficient light emission. Comprehensive experimental and theoretical analysis elucidates the roles of energy level alignment, spin–orbit coupling (SOC), and reorganization energy in modulating excited-state properties of these optical functional complexes. Temperature-dependent measurements show that the emission dynamics transition from phosphorescence at lower temperatures to TADF at room temperature, highlighting the tunable properties of the mixed films containing the gold(<small>III</small>) acceptors. Despite previous focus on tridentate and tetradentate gold(<small>III</small>) complexes, this work highlights the underexplored potential of bidentate analogs, providing insights into their structure–property relationships and their suitability as exciplex acceptors. A solution processed OLED device utilizing the <strong>PPyAuPhCN</strong>:TAPC exciplex as the emission layer achieved a maximum external quantum efficiency (EQE) of 8.2%, demonstrating its potential practicality in optoelectronic devices. This work not only advances the understanding of bidentate gold(<small>III</small>) complexes in exciplex systems but also provides a strategic framework for developing efficient luminescent materials using engineered metal complexes.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2540-2550"},"PeriodicalIF":6.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773384","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}

{"title":"Prolonged hot carrier cooling induced by intra-band gaps in Dirac graphyne carbon allotropes†","authors":"Fulong Dai, Zhaozhao Xiong, Zhenfa Zheng, Feiyu Cheng, Yingcong Liu, Haochun Sun, Jin Zhao, Zhuo Kang and Yue Zhang","doi":"10.1039/D5QM00259A","DOIUrl":"https://doi.org/10.1039/D5QM00259A","url":null,"abstract":"<p >Understanding and controlling photoexcited carrier dynamics in light-harvesting materials is the key to unleashing the potential of next-generation solar cells. Two-dimensional Dirac cone materials are attractive as emergent absorbers because of their unusual optical adsorption and energy transport properties. However, rapid hot carrier cooling poses significant limitations on energy extraction. Here, we propose a hot carrier management strategy <em>via</em> arranging carbon atomic motifs. The effects of intra-band gaps on hot carrier dynamics in two-dimensional Dirac graphyne carbon allotropes are investigated through <em>ab initio</em> nonadiabatic molecular dynamics in momentum space. We reveal that the removal of momentum-conserving cooling pathways across an intra-band gap significantly weakens electron–phonon coupling behavior. The hot carrier cooling time constant is extended from 0.28 ps to 12.287 ps, indicating sufficiently prolonged hot carrier cooling properties. Our findings advance the fundamental knowledge of hot carrier dynamics in Dirac materials and highlight the excellent potential of intra-band gaps in efficient extraction of hot carriers, which is crucial for improving the performances of energy and photovoltaic devices.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2491-2499"},"PeriodicalIF":6.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773379","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}

{"title":"Encapsulating nickel sulfide nanoparticles within porous carbon nanocages for sodium-ion batteries†","authors":"Supeng Zhai, Longwei Li, Tongbo Yang, Qiuju Wang, Maoxiang Jing, Lianli Zou, Liping Zhou, Ying Liu and Qiang Xu","doi":"10.1039/D5QM00301F","DOIUrl":"https://doi.org/10.1039/D5QM00301F","url":null,"abstract":"<p >Nickel sulfide has been widely studied as an anode material for sodium-ion batteries (SIBs) owing to its relatively high theoretical capacity and cost-effective features, while it suffers from significant volume expansion, low ionic conductivity during the insertion and extraction of Na ions, leading to poor sodium storage electrochemical performance. To solve this issue, a kind of NiS@C anode material, in which NiS nanoparticles with a diameter of about 13 nm were encapsulated within porous carbon nanocages, was strategically synthesized using a nickel-based metal–organic framework as a precursor. The crystalline structures, specific surface areas, pore structures, surface chemical states and morphologies of this kind of material were analyzed using XRD, N<small>₂</small> sorption curves, XPS, SEM and TEM techniques, respectively. During the charge and discharge process, porous carbon nanocages can act as a buffer to restrict volume expansion and enhance the conductivity of NiS hybrid materials, thus improving the stability of electrode materials. The NiS@C composite with an appropriate amount of NiS nanoparticles encapsulated in carbon nanocages showed an ideal rate performance, good long-cycling stability, and outstanding specific capacity with a high capacity of 385 mA h g<small>⁻¹</small> at 0.05 A g<small>⁻¹</small> for SIBs, which were much superior to those of NiS@C–NiS having many NiS nanoparticles on the outer surface of carbon nanocages. This work provides an innovative approach to synthesize core-shelled NiS-C composites for high-performance SIBs.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 16","pages":" 2514-2521"},"PeriodicalIF":6.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773382","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}