Journal of Materials Chemistry C最新文献

{"title":"A core–shell carbon–ceramic fibrous aerogel derived from aramid-polysilsesquioxane for broadband electromagnetic wave absorption†","authors":"Weiquan Huang, Yihang Yang, Huiyuan Gu, Wenjing Yu and Gaofeng Shao","doi":"10.1039/D5TC01397F","DOIUrl":"https://doi.org/10.1039/D5TC01397F","url":null,"abstract":"<p >Carbon–ceramic composites demonstrate exceptional promise for microwave absorption in extreme environments. In this study, a hierarchical carbon–ceramic fibrous aerogel (CCFA) was synthesized <em>via</em> the pyrolysis of a bridged polysilsesquioxane coated aramid nanofiber aerogel. The resulting material features interconnected networks and a core–shell skeleton, which establish a dual-level impedance gradient. This unique architecture optimizes surface impedance matching between amorphous carbon and air, facilitating the penetration of incident electromagnetic waves into the ceramic-confined carbon aerogel. The synergistic coexistence of amorphous carbon and silicon oxycarbonitride ceramic phases enhances interfacial effects, amplifying dielectric polarization loss. Consequently, the CCFA achieves a minimum reflection loss of −55.66 dB and a wide effective absorption bandwidth of 8.24 GHz. Furthermore, the aerogel exhibits good thermal insulation and flame-retardant properties, critical for extreme-environment applications. This work presents an effective multilevel structural design and heterointerface engineering strategy for advancing carbon–ceramic composites in high-performance microwave absorption under demanding conditions.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10658-10670"},"PeriodicalIF":5.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171118","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":"Development of self-powered multicolored smart windows utilizing viologen derivatives†","authors":"Wanxiong Yong, Weining Liu, Xiaoying Xin and Guodong Fu","doi":"10.1039/D5TC00818B","DOIUrl":"https://doi.org/10.1039/D5TC00818B","url":null,"abstract":"<p >In recent years, smart windows that provide energy-efficient solutions for the construction and transportation sectors have attracted considerable interest as a result of increasingly severe environmental issues. Electrochromic windows have emerged as a prominent option because of their high coloring efficiency and broad optical modulation range. However, traditional electrochromic devices necessitate the use of an external electric field to operate, which not only increases energy consumption but also poses safety risks. In this study, we propose a novel self-powered electrochromic smart window that utilizes the principles of self-charging batteries to achieve optical modulation across a wide spectrum of visible light. This device utilizes viologen derivatives as electrochromic materials due to their highly reversible redox reactions and the ease with which their colors can be manipulated. The devices can exhibit three distinct display states, transitioning from colorless or pale yellow to blue, purple, and green, by varying the types of viologen derivative electrochromic materials employed. Notably, simply disconnecting the zinc anode from the conductive glass cathode enables the self-recovery of the electrochromic state, thereby restoring the initial transmittance level. This recovery takes place as the viologen cation radical spontaneously oxidizes to form the divalent ion; a process facilitated by oxygen dissolved within the gel electrolyte. The device not only features a multicolor display and efficient optical modulation but also demonstrates excellent cycle stability and safety. Consequently, the smart window presented functions as a multifunctional device, serving both as an electrochromic window and an energy storage unit. This innovative self-powered multicolor display device significantly broadens the application scope of electrochromic smart windows. It achieves not only the shading effect of optical modulation but also meets the energy-saving and flexible design needs in the fields of architecture and transportation, thereby providing opportunities for further applications in the new energy industry.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 19","pages":" 9474-9482"},"PeriodicalIF":5.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073560","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 novel metal–semiconductor SERS self-cleaning system with synergistic effects for highly sensitive detection of pollutants†","authors":"Junnan Wang, Zeyu Wang, Jindou Shi, Chen Zhang, Qin Yao, Yun Zhou, Zheyuan Da, Arshad Saleem Bhatti and Minqiang Wang","doi":"10.1039/D5TC00233H","DOIUrl":"https://doi.org/10.1039/D5TC00233H","url":null,"abstract":"<p >Accuracy and reusability are the major concerns in the development of surface-enhanced Raman scattering (SERS) technology. This study reports an Au nano-urchin (Au NU)/TiO<small>₂</small>@ZnO composite self-cleaning SERS substrate for cyclic detection of common pollutants. The SERS substrate increased the Raman scattering signal intensity <em>via</em> simultaneous electromagnetic and chemical mechanisms. The lowest detection limit of the substrate was 10<small>⁻¹²</small> M for methyl blue (MB) molecules. The composite SERS substrate also exhibited outstanding self-cleaning capabilities. It could rapidly degrade MB molecules adsorbed on the surface within 21 min under UV irradiation. A 95% enhancement effect was still maintained after multiple detection-degradation cycles. The chemical enhancement mechanism of the composite SERS substrate was analyzed in detail around the energy band structure, confirming the excellent enhancement effect of the substrate on signaling molecules with different bandgaps. These studies highlighted the superiority of the enhancement mechanism of the substrate, complemented with its photocatalytic self-cleaning properties. Moreover, the components of the substrate interacted with each other and optimally boosted various performances. This study opens up new breakthrough points and broader application prospects for the development of SERS technology.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 20","pages":" 10332-10341"},"PeriodicalIF":5.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117526","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":"Structure modulation by cationic modification of sulfates using planar CS(NH2)2†","authors":"Qinghe Li, Hanxiang Mi, Lilin Yang, Hongyuan Sha, Dongling Yang, Zujian Wang, Rongbing Su, Bin Su and Chao He","doi":"10.1039/D5TC01166C","DOIUrl":"https://doi.org/10.1039/D5TC01166C","url":null,"abstract":"<p >Non-centrosymmetric (NCS) structures are the prerequisite and basis for ideal nonlinear optical (NLO) crystals. However, NCS structures are usually difficult to achieve. In this regard, a cationic modulation strategy utilizing a planar molecule was proposed and implemented. With the centrosymmetric (CS) structure of ZnSO<small>₄</small> as the template and planar CS(NH<small>₂</small>)<small>₂</small> groups as a structure inducer, Zn[CS(NH<small>₂</small>)<small>₂</small>]<small>₃</small>SO<small>₄</small> (ZTS) crystals with a NCS structure (space group of <em>Pca</em>2<small>₁</small>) were obtained, and were found to exhibit not only a large birefringence of 0.09@546 nm but also a strong second harmonic generation effect equivalent to that of KH<small>₂</small>PO<small>₄</small> crystals. The properties of the ZTS crystals mainly result from the near uniform arrangement of the planar CS(NH<small>₂</small>)<small>₂</small> groups. Thus, the strategy of cationic modification with planar groups contributes to both the transformation of a CS structure to a NCS structure and favorable optical properties. Therefore, this work will facilitate the development of NLO crystals, especially short-wave ultraviolet NLO crystals.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10671-10675"},"PeriodicalIF":5.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171119","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":"Single crystal Cr3+-doped NIR phosphor: enhanced luminescence intensity and improved thermal stability†","authors":"Peng Wang, Lei Zhong, Yingyuan Chen, Yuefei Xiang, Jing Yan, Chunyan Jiang, Lei Zhou and Mingmei Wu","doi":"10.1039/D5TC01433F","DOIUrl":"https://doi.org/10.1039/D5TC01433F","url":null,"abstract":"<p >Single crystals of Cr<small>³⁺</small>-doped guanidine-based organic–inorganic hybrid fluorides (GA<small>₃</small>GaF<small>₆</small>:Cr<small>³⁺</small>) with sizes up to 6 × 5 × 2 mm<small>³</small> were successfully synthesized using a facile room-temperature solvent exchange crystallization method. The GA<small>₃</small>GaF<small>₆</small>:Cr<small>³⁺</small> single crystal exhibits near-infrared (NIR) emission centered at 802 nm with a full width at half-maximum (FWHM) of 130 nm upon blue light excitation. Compared to polycrystalline powders, the GA<small>₃</small>GaF<small>₆</small>:Cr<small>³⁺</small> single crystal demonstrates enhanced luminescence intensity and improved thermal stability. Notably, the bright green GA<small>₃</small>GaF<small>₆</small>:Cr<small>³⁺</small> single crystal maintains its structural integrity at temperatures up to 540 K without degradation and retains over 75% of its initial luminescence intensity at 373 K. Furthermore, the GA<small>₃</small>GaF<small>₆</small>:Cr<small>³⁺</small> single crystals exhibit excellent environmental stability, preserving 77% of their initial luminescence intensity after exposure to high temperature and high humidity (85 °C, 85% RH) for 5 days. This work represents a significant advancement in the development of organic–inorganic hybrid fluoride single-crystal materials for near-infrared emitting devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10882-10890"},"PeriodicalIF":5.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171149","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 highly sensitive fluorescent nanofiber sensor functionalized with small organic molecules for specific analyte detection†","authors":"Leqin Cheng, Yunqi Tao, Jie Chen, Xiaohan Zhu, Zhonglin Wei, Ding Zhou, Yuewei Zhang and Xue Yu","doi":"10.1039/D4TC05358C","DOIUrl":"https://doi.org/10.1039/D4TC05358C","url":null,"abstract":"<p >The rapid, sensitive, and efficient detection of nitroaromatic explosives is crucial for human health and public safety, particularly in detecting trace explosive vapors. In this study, a donor–acceptor (D–A) type fluorescent probe, 6-(6-(9<em>H</em>-carbazol-9-yl)pyridin-3-yl)-2-phenyl-1<em>H</em>-benzo[<em>de</em>]isoquinoline-1,3(2<em>H</em>)-dione (<strong>PPBD</strong>), was synthesized by coupling carbazole and 1,8-naphthalimide <em>via</em> the Suzuki reaction. The probe exhibits characteristic intramolecular charge transfer (ICT) emission, which makes it highly efficient for detecting nitroaromatic explosives such as pentaerythritol tetranitrate (PETN), trinitrotoluene (TNT), 2-nitro-<em>m</em>-xylene cyclotetramethylene tetranitramine (HMX), and cyclotrimethylene trinitramine (RDX). Additionally, an electrospun fiber film of <strong>PPBD</strong>/PEO was fabricated, demonstrating high sensitivity in sensing nitroaromatic vapors <em>via</em> fluorescence testing. The quenching efficiencies for HMX, TNT, RDX, PETN, and 2-nitro-<em>m</em>-xylene are 92%, 89%, 76%, 64%, and 40%, respectively, with the highest selectivity for HMX vapor. This enhanced selectivity is attributed to the increased contact area between nanofibers and analytes in the film, facilitating effective fluorescence quenching. Proton transfer from analytes to <strong>PPBD</strong> blocks ICT emission, leading to the quenching of fluorescence.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10640-10649"},"PeriodicalIF":5.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171116","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":"Dynamic and multimodal luminescence of Mn2+-doped Mg4Ga8Ge2O20 persistent phosphor for anti-counterfeiting applications†","authors":"Guna Doke, Pavels Rodionovs, Andris Antuzevics, Jekabs Cirulis, Guna Krieke, Meldra Kemere, Aldona Beganskiene and Aleksej Zarkov","doi":"10.1039/D5TC00875A","DOIUrl":"https://doi.org/10.1039/D5TC00875A","url":null,"abstract":"<p >The study provides an in-depth analysis of the structure and luminescence properties of Mg<small>₄</small>Ga<small>₈</small>Ge<small>₂</small>O<small>₂₀</small>:Mn<small>²⁺</small> (MGGO) materials, focusing particularly on their dynamic color-changing capabilities. A series of single-phase MGGO:<em>x</em>Mn<small>²⁺</small> (0.0 ≤ <em>x</em> ≤ 0.5 mol%) was prepared. The successful incorporation of Mn<small>²⁺</small> ions was verified using electron paramagnetic resonance spectroscopy. The photoluminescence and X-ray excited optical luminescence properties demonstrated that emission can be color-tuned based on the concentration of Mn<small>²⁺</small> ions, with significant color shifts between red and blue observed during excitation and decaying of persistent luminescence. The persistent luminescence properties were characterized and analyzed, revealing complex decay behaviors that suggest a combination of tunneling and thermal detrapping mechanisms. Three types of traps were identified in the MGGO materials: shallow traps associated with intrinsic defect emission, deep traps, and Ga-related hole traps linked to Mn<small>²⁺</small> emission. Notably, all MGGO samples can be characterized by red thermally stimulated luminescence, regardless of the initial luminescence color. These findings indicate that MGGO materials hold significant potential for anti-counterfeiting applications due to their dynamic and multimodal luminescent properties.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10871-10881"},"PeriodicalIF":5.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc00875a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171148","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":"Hybrid CsPbBr3 superlattice/Ag microcavity enabling strong exciton–photon coupling for low-threshold continuous-wave pumped polariton lasing†","authors":"Zhenxu Lin, Rui Huang, Shulei Li, Mingcheng Panmai, Yi Zhang, Haixia Wu, Jie Song, Zewen Lin, Hongliang Li and Sheng Lan","doi":"10.1039/D5TC00226E","DOIUrl":"https://doi.org/10.1039/D5TC00226E","url":null,"abstract":"<p >Achieving strong exciton–photon coupling in perovskite microcavities opens new possibilities for continuous-wave (CW) perovskite lasers with ultralow thresholds. A CsPbBr<small>₃</small> superlattice (SL), assembled from quantum dots (QDs) with a narrow size distribution, offers both large oscillator strengths and extended exciton dephasing times, rendering it a highly promising platform for enhanced light–matter interactions. Nevertheless, realizing robust exciton–photon coupling in a CsPbBr<small>₃</small> SL-based microcavity for low-threshold lasing remains elusive. Here, we demonstrate a hybrid microcavity integrating a CsPbBr<small>₃</small> SL with a thin Ag film to boost exciton–photon coupling and achieve CW-pumped polariton lasing. Using an acetone-assisted self-assembly approach, we obtain high-quality CsPbBr<small>₃</small> SLs characterized by narrow emission linewidths, large exciton binding energies, diminished exciton–phonon coupling, and highly stable amplified spontaneous emission. Optical scattering and photoluminescence measurements indicate significant coupling between the SL excitons and resonant photon modes in the CsPbBr<small>₃</small>/Ag microcavity. We attribute this enhanced light–matter interaction to comparable linewidths of the exciton resonance and photon mode, facilitated by the Ag film. A coupled oscillator model fit yields a Rabi splitting of approximately 225 meV in a large microcavity. Notably, we achieve CW-pumped polariton lasing near the lower polariton branch bottleneck at a low threshold of about 220 W cm<small>⁻²</small>. Our findings elucidate the fundamental mechanism underlying strong exciton–photon coupling in CsPbX<small>₃</small> SL systems and offer a viable strategy for designing CW-pumped polariton lasers with improved performance.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 10724-10732"},"PeriodicalIF":5.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171132","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 flexible nanogenerator based on functionalized cotton fibers for energy harvesting in low-temperature environments†","authors":"Si-Zhe Li, Gui-Wen Huang, Na Li, Yu Liu, Yang Wang, Rui-Xiao Cao and Hong-Mei Xiao","doi":"10.1039/D5TC00609K","DOIUrl":"https://doi.org/10.1039/D5TC00609K","url":null,"abstract":"<p >To address the challenges faced by traditional flexible triboelectric nanogenerators (F-TENGs) in low-temperature environments, such as the performance degradation of flexible conductive materials and poor fatigue resistance, this study proposes a novel low-temperature flexible triboelectric nanogenerator. By integrating a novel self-developed low-temperature flexible conductive fabric with cotton fibers and polytetrafluoroethylene (PTFE) as triboelectric materials, a high-performance F-TENG suitable for low-temperature applications was successfully developed. The experimental results demonstrate that the F-TENG maintains remarkable flexibility and mechanical properties even at 77 K. After 10 000 low-temperature flexibility tests and operational cycles, it retains excellent electrical performance, showcasing superior fatigue resistance and stable output capabilities. This work provides a novel solution to challenges in the low-temperature energy supply field and holds significant potential for applications in polar exploration, space exploration, and other cryogenic environments.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 20","pages":" 10212-10222"},"PeriodicalIF":5.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117498","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":"Research on the Ga2O3/ZnGa2O4 mixed-phase films and solar-blind photodetectors prepared directly by annealing Zn alloying Ga2O3 films†","authors":"Mingshuo Wang, Xing Chen, Kewei Liu, Xuan Sun, Xiaoqian Huang, Jialin Yang, Yongxue Zhu, Zhen Cheng, Binghui Li and Dezhen Shen","doi":"10.1039/D5TC00710K","DOIUrl":"https://doi.org/10.1039/D5TC00710K","url":null,"abstract":"<p >High-Zn-content doped β-Ga<small>₂</small>O<small>₃</small> thin films were grown on <em>c</em>-plane sapphire substrates using metal–organic chemical vapor deposition (MOCVD), with subsequent annealing inducing a phase transition, converting the initially single-phase material into a Ga<small>₂</small>O<small>₃</small>/ZnGa<small>₂</small>O<small>₄</small> mixed-phase structure. Furthermore, metal–semiconductor–metal structured solar-blind photodetectors were fabricated to evaluate the ultraviolet detection capabilities of these mixed-phase films. The detector performance was significantly enhanced following annealing. At an annealing temperature of 800 °C, phase separation occurred, and the improvement in device performance became more pronounced. Devices annealed in an argon atmosphere, undergoing phase separation, exhibited superior optoelectronic performance, achieving a low dark current of 0.137 pA at a bias voltage of 10 V. At the peak wavelength, the device also demonstrated a responsivity of 2058.54 A W<small>⁻¹</small>, a specific detectivity of 3.21 × 10<small>¹⁵</small> cm Hz<small>^1/2</small> W<small>⁻¹</small>, and a short decay time of 2.90 ms. The exceptional performance of mixed-phase devices is likely attributed to the large number of heterojunction interfaces between Ga<small>₂</small>O<small>₃</small> and ZnGa<small>₂</small>O<small>₄</small>. This study investigates the transition of the thin film material from a single-phase to a mixed-phase structure, analyzing the associated changes in their physical properties and detector performance. Additionally, it expands the material design framework for Ga<small>₂</small>O<small>₃</small>-based ultraviolet photodetectors and introduces a novel strategy to enhance their performance.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 20","pages":" 10062-10071"},"PeriodicalIF":5.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117531","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}