Materials Chemistry Frontiers最新文献

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The principles and recent advancements in self-powered wearable fiber sensors 自供电可穿戴光纤传感器的原理及最新进展
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-09 DOI: 10.1039/D4QM01016G
Ying Chen, Tianyu Wang and Guanghui Gao
{"title":"The principles and recent advancements in self-powered wearable fiber sensors","authors":"Ying Chen, Tianyu Wang and Guanghui Gao","doi":"10.1039/D4QM01016G","DOIUrl":"https://doi.org/10.1039/D4QM01016G","url":null,"abstract":"<p >Wearable sensors are widely used in sports monitoring, health care and daily life health management due to their real-time feedback of personal health status and physiological data. However, traditional wearable sensors require a battery to provide continuous power to the device. Therefore, additional line connections, limited energy supply, and frequent battery replacement hinder the practical application of wearable sensors. Self-powered sensors present an effective solution to these challenges by harvesting energy from the environment to power the device. Among them, fibers and textiles are the preferred choice for wearable sensors because they are light weight, breathable, braided, stretchable, and suitable for everyday activities. This review explores the operational principles of wearable self-powered fiber sensors, detailing the mechanisms of moist-electric, triboelectric, piezoelectric, thermoelectric, and photovoltaic sensors. It also introduces research progress in healthcare monitoring, disease diagnosis, and human–machine interaction, focusing on materials and effects. Finally, the review discusses the challenges and prospects in the field of wearable self-powered fiber sensor research. The potential for these sensors to operate without external power sources opens new possibilities for the future of wearable devices, promoting sustainability and reducing the environmental impact associated with battery usage.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1618-1649"},"PeriodicalIF":6.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140035","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
Multifunctional nanozyme for tumor-targeted photothermal/catalytic combination therapy† 用于肿瘤靶向光热/催化联合治疗的多功能纳米酶
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-08 DOI: 10.1039/D5QM00065C
Zhihui Xin, Lu Zhao, Jianfeng Li, Zhiqiang Bai, Yunfeng Bai and Feng Feng
{"title":"Multifunctional nanozyme for tumor-targeted photothermal/catalytic combination therapy†","authors":"Zhihui Xin, Lu Zhao, Jianfeng Li, Zhiqiang Bai, Yunfeng Bai and Feng Feng","doi":"10.1039/D5QM00065C","DOIUrl":"https://doi.org/10.1039/D5QM00065C","url":null,"abstract":"<p >Catalytic therapy based on nanozymes has emerged as a significant approach to combat tumors. However, catalytic therapy is associated with the big challenge of insufficient treatment. Herein, an N, P dual-doped hollow carbon sphere (HCNPN)-based multifunctional nanozyme (HCNPNs/AGPM) was rationally devised and constructed to achieve targeted photothermal/catalytic combination therapy. Firstly, <small>L</small>-arginine (<small>L</small>-Arg) and glucose oxidase (GOx) were loaded onto HCNPNs to obtain HCNPNs/AG. Then, they were functionalized with an aptamer (Apt) to obtain a multifunctional nanozyme. The constructed HCNPNs/AGPM possessed multienzyme-like activities, including GOx-like, peroxidase (POD)-like and nitric oxide synthase (NOS)-like catalytic activities, which enabled the multifunctional nanozyme to generate sufficient hydroxyl radicals (•OH) and NO for catalytic therapy. Moreover, this multifunctional nanozyme displayed outstanding photothermal-conversion activity for photothermal therapy (PTT) upon 808 nm laser irradiation because of the strong light absorption capacity of HCNPNs. Notably, the multifunctional nanozyme showed enhanced cytotoxicity in MCF-7 cells, benefiting from the specific recognition ability of Apt. The results of <em>in vitro</em> and <em>in vivo</em> experiments revealed that HCNPNs/AGPM could eliminate tumors without apparent side effects. Consequently, the constructed multifunctional nanozyme may provide a hopeful paradigm for tumor-targeted therapy and inspire the further development of nanozymes in clinical trials.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1702-1715"},"PeriodicalIF":6.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140061","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
Self-assembled supramolecular materials based on ruthenium(ii) complexes with exceptional optical and photothermal properties† 基于钌(ii)配合物的自组装超分子材料,具有优异的光学和光热性能†
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-08 DOI: 10.1039/D4QM01133C
Xufeng Mai, Jun Li, Mengting Xie, Xiaoyue Wang, Ming Sun, Ying Wu, Huijuan Yu and Lin Yu
{"title":"Self-assembled supramolecular materials based on ruthenium(ii) complexes with exceptional optical and photothermal properties†","authors":"Xufeng Mai, Jun Li, Mengting Xie, Xiaoyue Wang, Ming Sun, Ying Wu, Huijuan Yu and Lin Yu","doi":"10.1039/D4QM01133C","DOIUrl":"https://doi.org/10.1039/D4QM01133C","url":null,"abstract":"<p >Ruthenium complexes have been extensively studied due to their prominent photochemical, photophysical, and electrochemical properties. However, research on the construction and properties of supramolecular materials self-assembled by ruthenium complexes remains limited. Here, by designing the connecting ligands and the self-assembly process, we constructed two new supramolecular materials (<strong>Ru-bipb-<em>n</em></strong> and <strong>Ru-bdppz-<em>n</em></strong>) connected by ruthenium(<small>II</small>) complexes. These two materials exhibit unique properties compared to their parent binuclear complexes. <strong>Ru-bipb-<em>n</em></strong> displays remarkable dual-emission properties with impressive blue light emission in organic solvents. Its notable pH sensitivity makes it an ideal candidate as a ratiometric fluorescent probe for pH measurements, with a wide pH application range and an exceptionally long excited-state lifetime. By altering the connecting ligands, we obtained the second supramolecular material <strong>Ru-bdppz-<em>n</em></strong>, which has a more extended π-conjugation plane. <strong>Ru-bdppz-<em>n</em></strong> features unique full-band absorption properties from UV-visible to near-infrared (NIR) regions (200–2000 nm). Under 808 nm laser irradiation, <strong>Ru-bdppz-<em>n</em></strong> exhibits outstanding photothermal conversion ability, with temperatures as high as 220 °C and 76 °C for solid powder and water dispersion, respectively, and shows excellent thermal stability, holding promise for solar energy harvesting and conversion applications. Mechanism investigations indicate that the extended π-conjugate plane of the ligand <strong>bdppz</strong> and the formation of the polymer chain promote NIR absorption and photothermal conversion. We believe that this will provide inspiration for the rational design of ruthenium-connected supramolecular materials with specified functionality.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1716-1725"},"PeriodicalIF":6.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140062","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
Direct styrene hydrogenation on a metal-free boron–nitrogen doped carbon catalyst† 无金属硼氮掺杂碳催化剂上苯乙烯的直接加氢
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-07 DOI: 10.1039/D4QM01107D
Neeraj Gupta, Abhishek Soni, Sahil Kumar, Mamta Shandilya, Elisabetta Inico, Ilaria Barlocco, Giovanni Di Liberto and Alberto Villa
{"title":"Direct styrene hydrogenation on a metal-free boron–nitrogen doped carbon catalyst†","authors":"Neeraj Gupta, Abhishek Soni, Sahil Kumar, Mamta Shandilya, Elisabetta Inico, Ilaria Barlocco, Giovanni Di Liberto and Alberto Villa","doi":"10.1039/D4QM01107D","DOIUrl":"https://doi.org/10.1039/D4QM01107D","url":null,"abstract":"<p >We present a study of direct styrene hydrogenation to ethylbenzene by a metal-free catalyst. The catalyst is a nanohybrid made up of ultra-dispersed diamond (UDD) and graphitic sheets. The method to prepare the catalyst introduces the key active site (bearing B and N atoms) into the sp<small><sup>2</sup></small> rich layer over the surface of UDD. The results show excellent catalytic activity for the direct hydrogenation of styrene to ethylbenzene in the presence of isopropyl alcohol, where hydrogen comes directly from the oxidation of the alcohol to acetone. The combination of experimental characterization and quantum chemical simulation indicates that a key role is played by direct B<img>N bonds and pyrrolic-N is the most probable active site in the reaction.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1690-1701"},"PeriodicalIF":6.0,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm01107d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140038","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
Chromium-containing polyanionic cathode materials for sodium-ion batteries: progress, challenges and opportunities 钠离子电池用含铬多阴离子正极材料:进展、挑战与机遇
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-03 DOI: 10.1039/D5QM00068H
Jin-Ling Liu, Yan Zhuang, Yi-Fei Liu, Xiao-Tong Wang, Zhen-Yi Gu, Denglong Chen and Xing-Long Wu
{"title":"Chromium-containing polyanionic cathode materials for sodium-ion batteries: progress, challenges and opportunities","authors":"Jin-Ling Liu, Yan Zhuang, Yi-Fei Liu, Xiao-Tong Wang, Zhen-Yi Gu, Denglong Chen and Xing-Long Wu","doi":"10.1039/D5QM00068H","DOIUrl":"https://doi.org/10.1039/D5QM00068H","url":null,"abstract":"<p >Sodium-ion batteries (SIBs) have emerged as promising candidates for next-generation energy storage systems due to their abundant resources, low cost, and environmental friendliness. Among various cathode materials, chromium-containing polyanionic compounds have attracted significant attention for their high working voltage, excellent diffusion kinetics, and safety. This review provides a comprehensive overview of the recent progress in chromium-containing polyanionic cathode materials for SIBs, emphasizing the multifunctional roles of chromium in enhancing electronic conductivity, stabilizing crystal structures, and enabling high-voltage redox activity. The interplay between material composition, crystal architecture, and sodium storage behavior is discussed. Challenges such as poor high-voltage durability and interface degradation are identified, with emphasis on strategies including structural modulation, defect regulation, and interface engineering. Moreover, strategies to overcome the bottlenecks in material development, such as improving high-voltage stability, optimizing energy density, and enhancing interfacial performance, are proposed. These findings not only deepen the understanding of chromium-containing polyanionic materials but also provide a theoretical foundation for the development of efficient and safe energy storage solutions.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1486-1500"},"PeriodicalIF":6.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938161","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
Single-atom Ce catalysts for rechargeable Zn–air batteries† 可充电锌空气电池的单原子Ce催化剂
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-02 DOI: 10.1039/D4QM01147C
Jingru Sun, Zhenlu Wang and Jingqi Guan
{"title":"Single-atom Ce catalysts for rechargeable Zn–air batteries†","authors":"Jingru Sun, Zhenlu Wang and Jingqi Guan","doi":"10.1039/D4QM01147C","DOIUrl":"https://doi.org/10.1039/D4QM01147C","url":null,"abstract":"<p >Rechargeable zinc–air batteries (ZABs) have attracted increasing attention in the field of energy storage and conversion owing to their high theoretical energy density, high efficiency and environmental compatibility. The development of bifunctional oxygen reduction/evolution (OER/OER) electrocatalysts is highly pivotal for ZABs. Accordingly, single-atom M–N–C catalysts are prospective candidates for oxygen electrocatalysis because they have the largest atomic utilization and possess highly adjustable electronic structures. Herein, a rare-earth bifunctional OER and ORR electrocatalyst, with atomic Ce sites embedded in N-doped graphene (Ce<small><sub>1</sub></small>-NG), was designed and constructed. The atomically dispersed Ce sites were precisely analyzed using advanced characterization techniques. Ce<small><sub>1</sub></small>-NG demonstrated an exceptional ORR performance with a half-wave potential (<em>E</em><small><sub>1/2</sub></small>) of 0.869 V and excellent OER activity with an overpotential (<em>η</em><small><sub>10</sub></small>) of 381 mV. The Ce<small><sub>1</sub></small>-NG-based ZAB supplied an open-circuit voltage of 1.55 V and a peak power density of 152 mW cm<small><sup>−2</sup></small> with remarkable stability.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1574-1580"},"PeriodicalIF":6.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938044","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
Enhanced red-emitting phosphors through Si4+/Eu3+ co-doping: advancing WLED performance and anti-counterfeiting applications† 通过Si4+/Eu3+共掺杂增强的红发荧光粉:推进WLED性能和防伪应用
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-01 DOI: 10.1039/D5QM00046G
Lanxuan Yang, Lili Liu, Xu Ding, Ruili Xu, Tian Tian, Zhifu Liu, Lianjiang Tan and Yaoqing Chu
{"title":"Enhanced red-emitting phosphors through Si4+/Eu3+ co-doping: advancing WLED performance and anti-counterfeiting applications†","authors":"Lanxuan Yang, Lili Liu, Xu Ding, Ruili Xu, Tian Tian, Zhifu Liu, Lianjiang Tan and Yaoqing Chu","doi":"10.1039/D5QM00046G","DOIUrl":"https://doi.org/10.1039/D5QM00046G","url":null,"abstract":"<p >The asymmetry of the local environment within host materials plays a critical role in enhancing the emission performance of Eu<small><sup>3+</sup></small> ions. In this study, we introduced a novel Si<small><sup>4+</sup></small>-doping strategy to optimize the luminous properties of Eu<small><sup>3+</sup></small> ions by promoting asymmetry in the local lattice environment. And then, a series of Si<small><sup>4+</sup></small>/Eu<small><sup>3+</sup></small> co-doped Sr<small><sub>3</sub></small>Ga<small><sub>2</sub></small>Ge<small><sub>4</sub></small>O<small><sub>14</sub></small> phosphors were synthesized. Our findings reveal that Si<small><sup>4+</sup></small>-doping at a concentration of 60 mol% significantly enhances the emission intensity of Eu<small><sup>3+</sup></small> ions in the Sr<small><sub>3</sub></small>Ga<small><sub>2</sub></small>Ge<small><sub>4</sub></small>O<small><sub>14</sub></small> host by approximately 80%. Also, the internal quantum efficiency increases from 37.80% to 49.04%, alongside a rise in color purity from 87.40% to 99.80%. Utilizing this Sr<small><sub>2.3</sub></small>Ga<small><sub>2</sub></small>Ge<small><sub>1.6</sub></small>Si<small><sub>2.4</sub></small>O<small><sub>14</sub></small>:0.7Eu<small><sup>3+</sup></small> high-performance red phosphor, we fabricated a white light-emitting diode (WLED) device with natural white light characteristics, achieving CIE coordinates of (0.338, 0.323), a correlated color temperature (CCT) of 5636 K, and a color rendering index (CRI) of <em>R</em><small><sub>a</sub></small> = 89.4. Additionally, we developed a high-performance anti-counterfeiting ink using this red phosphor, which adheres uniformly to surfaces with varying roughness and delivers exceptional luminescence effects. This study provides new insights into the development of advanced red-emitting phosphors for applications in lighting and anti-counterfeiting technologies.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1581-1595"},"PeriodicalIF":6.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938045","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
Complexation of oncolytic peptide with carboxylatoquaterphen[3]arene for ameliorating its antitumor efficacy† 溶瘤肽与羧基四元酚[3]芳烃络合提高其抗肿瘤作用的研究
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-04-01 DOI: 10.1039/D5QM00038F
He Zhang, Yi Lou, Shenghui Li, Zihan Fang, Junyi Chen and Chunju Li
{"title":"Complexation of oncolytic peptide with carboxylatoquaterphen[3]arene for ameliorating its antitumor efficacy†","authors":"He Zhang, Yi Lou, Shenghui Li, Zihan Fang, Junyi Chen and Chunju Li","doi":"10.1039/D5QM00038F","DOIUrl":"https://doi.org/10.1039/D5QM00038F","url":null,"abstract":"<p >Hepatocellular carcinoma is the most common primary liver cancer with high mortality and poor prognosis. Oncolytic therapy using peptide agents is a promising approach for the above-mentioned malignant tumor; however, their typically low stability often leads to insufficient bioavailability. Herein, we proposed a supramolecular strategy to improve the metabolic stability of the LTX-315 oncolytic peptide <em>via</em> direct complexation with a macrocyclic host. A negatively charged carboxylatoquaterphen[3]arene (CQP3) bearing 12 benzenes on its skeleton was designed and synthesized. CQP3 exhibited strong binding affinity toward LTX-315 with a high association constant of (1.51 ± 0.10) × 10<small><sup>6</sup></small> M<small><sup>−1</sup></small> and excellent recognition selectivity under a complicated physiological environment. This complexation was attractive as traditional macrocycles could only recognize specific amino acid residues of peptide guests owing to their strict cavity limitation. A series of <em>in vitro</em> and <em>in vivo</em> safety tests preliminarily proved that CQP3 possessed good biocompatibility. Complexation with CQP3 enhanced the metabolic stability of LTX-315 and its cytotoxicity at the cellular level after incubation with plasma. <em>In vivo</em> antitumor efficacy studies further demonstrated that LTX-315 co-administrated with equimolar CQP3 was capable of improving the curative outcomes in hepatocellular carcinoma-bearing nude mice.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1568-1573"},"PeriodicalIF":6.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938043","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
Chirality expression from hierarchical foldamer-mesoscopic helical silica frameworks† 层次折叠体-介观螺旋二氧化硅框架的手性表达
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-03-29 DOI: 10.1039/D4QM01140F
Piyanan Pranee, Robin Hess, Anthony Boudier, Zakaria Anfar, Matheus De Souza Lima Mendes, Eric Merlet, Wijak Yospanya, Emilie Pouget, Sylvain Nlate, Céline Olivier, Thierry Buffeteau, Yann Ferrand and Reiko Oda
{"title":"Chirality expression from hierarchical foldamer-mesoscopic helical silica frameworks†","authors":"Piyanan Pranee, Robin Hess, Anthony Boudier, Zakaria Anfar, Matheus De Souza Lima Mendes, Eric Merlet, Wijak Yospanya, Emilie Pouget, Sylvain Nlate, Céline Olivier, Thierry Buffeteau, Yann Ferrand and Reiko Oda","doi":"10.1039/D4QM01140F","DOIUrl":"https://doi.org/10.1039/D4QM01140F","url":null,"abstract":"<p >The interaction between racemic quinoline-derived helical oligoamide foldamers and mesoscopic silica-based helical frameworks was investigated. These foldamers displayed distinct chiroptical properties such as electronic and vibrational circular dichroism (ECD and VCD, respectively) and circularly polarized luminescence (CPL) when interacting with silica nanohelices (INHs) deposited as thin films. Dissymmetry factors (<em>g</em><small><sub>abs</sub></small> and <em>g</em><small><sub>lum</sub></small>) were influenced by drying kinetics, silica surface functional groups, and foldamer concentration and length. Washing co-assembled films of quinoline octamers and INHs in order to separate the two, revealed that ECD signals originated from molecular solution of foldamers which decreased over 7 minutes, indicating enantiomeric enrichment even though modest (∼4%) induced by INHs. The induced foldamer handedness matched with the helicity of the INHs. Enantiopure foldamers (helically locked <em>M</em> or <em>P</em> oligomers) exhibited enhanced or reduced ECD signals depending on their helicity alignment with INHs. This study highlights the interplay between molecular chirality and supramolecular organization of foldamers directed by silica nanohelices.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1501-1510"},"PeriodicalIF":6.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm01140f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938162","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
Design of donor–acceptor covalent organic frameworks for photocatalytic hydrogen generation† 光催化制氢用供体-受体共价有机框架的设计
IF 6 2区 材料科学
Materials Chemistry Frontiers Pub Date : 2025-03-28 DOI: 10.1039/D5QM00074B
Amit Nagar, Gulshan Singh, Akhtar Alam, Pradip Pachfule and C. M. Nagaraja
{"title":"Design of donor–acceptor covalent organic frameworks for photocatalytic hydrogen generation†","authors":"Amit Nagar, Gulshan Singh, Akhtar Alam, Pradip Pachfule and C. M. Nagaraja","doi":"10.1039/D5QM00074B","DOIUrl":"https://doi.org/10.1039/D5QM00074B","url":null,"abstract":"<p >The well-ordered π-conjugated backbone facilitates efficient light absorption, enhancing carrier mobility, while the tensile molecular structure allows precise tailoring of optoelectronic properties. In addition, the alternating arrangement of donor (D) and acceptor (A) segments in the well-ordered π-conjugated framework provides pathways and channels for intermolecular charge transfer (ICT). Therefore, the precise integration of the D and A moieties into the long-range ordered backbone of the COFs accelerates carrier mobilities and reduces the possibility of electron–hole recombination. COFs with a D–A system have made great progress in the related research of photocatalytic applications. It is anticipated that COFs consisting of polar hydrophilic electron-withdrawing groups (<em>e.g.</em>, COOH) can promote the efficient migration of photogenerated electrons to the Pt cocatalyst for the reduction of water protons to produce hydrogen. Herein, we demonstrate the tuning of hydrogen evolution activity by tailoring the functionality of pyrene-based COFs by introducing donor (D) and acceptor (A) functionalities to facilitate the effective charge separation through the push–pull effect. Further, in order to systematically study the photocatalytic performances, a series of D–A COFs with different linkages and electron-donating/withdrawing groups have been synthesized. This difference in photocatalytic hydrogen generation activity is further supported by different optical and electrochemical studies. This work highlights the rational tuning of the hydrogen generation activity of COFs by strategic incorporation of appropriate functionality.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 9","pages":" 1421-1430"},"PeriodicalIF":6.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d5qm00074b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865394","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
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