Journal of Materials Chemistry C最新文献

{"title":"Ultrahigh-power-density BNT ferroelectric multilayer ceramic capacitors for pulse power energy conversion components†","authors":"Canyu Che, Yizheng Bao, Zimeng Hu, Qiu Feng, Meng Xie, Bin Zhou, Jia Yang, Hengchang Nie, Zhipeng Gao and Genshui Wang","doi":"10.1039/D4TC03279A","DOIUrl":"10.1039/D4TC03279A","url":null,"abstract":"<p >Ferroelectric (FE) materials are promising for applications in advanced high-power density systems/energy storage and conversion devices. However, the power density of ceramic components is limited by the electrode area and breakdown strength of bulk ceramic, while the multilayer structure is effective in enhancing the breakdown strength and realizing miniaturization. In this work, Bi<small>_0.5</small>Na<small>_0.5</small>TiO<small>₃</small>–BiAlO<small>₃</small>–NaNbO<small>₃</small> multilayer ceramic capacitors (BNT–BA–NN MLCCs) were prepared as pulse power energy conversion components. The electrical properties of MLCCs with different layer thicknesses under temperature and pressure fields were investigated. The relaxor phase was observed in thin layer MLCCs, which was beneficial for pressure depolarization but led to a reduction in remnant polarization (<em>P</em><small>_r</small>) and temperature stability. Therefore, MLCCs with an appropriate layer thickness are needed to satisfy energy conversion application. Results reveal that <em>P</em><small>_r</small> is up to 39 μC cm<small>⁻²</small> and <em>E</em><small>_b</small> increased to more than 26 kV mm<small>⁻¹</small> in BNT–BA–NN MLCCs. On this basis, an ultrahigh output power density up to 2.2 × 10<small>⁹</small> W kg<small>⁻¹</small> (GW kg<small>⁻¹</small>) with an output voltage up to 9.8 kV mm<small>⁻¹</small> is achieved in shock wave measurements, which is superior to that of the reported materials applied in high power pulse sources. The design of MLCCs provides an effective method to satisfy miniaturization and integration requirements for high-power applications.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tc/d4tc03279a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259507","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":"Correction: Heteroepitaxial tuning of resonant forbidden reflections in a spinel","authors":"Ryosuke Oka, Minu Kim, Peter Wochner, Sonia Francoual, Thomas T. M. Palstra, Hidenori Takagi and Dennis Huang","doi":"10.1039/D4TC90152E","DOIUrl":"10.1039/D4TC90152E","url":null,"abstract":"<p >Correction for ‘Heteroepitaxial tuning of resonant forbidden reflections in a spinel’ by Ryosuke Oka <em>et al.</em>, <em>J. Mater. Chem. C</em>, 2024, https://doi.org/10.1039/d4tc02239d.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tc/d4tc90152e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259487","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":"First principles prediction unveils high-Tc superconductivity in YSc2H24 cage structures under pressure†","authors":"Truong-Tho Pham, Viet-Ha Chu and Duc-Long Nguyen","doi":"10.1039/D4TC03145H","DOIUrl":"https://doi.org/10.1039/D4TC03145H","url":null,"abstract":"<p >The quest for room-temperature superconductivity has been a long-standing aspiration in the field of materials science, driving extensive research efforts. In this work, we present a novel hydride, YSc<small>₂</small>H<small>₂₄</small>, which is stable at high pressure, identified through crystal structure prediction methods. The discovered material is crystalline in a hexagonal unit cell with space group <em>P</em>6/<em>mmm</em> and has a fastinating structure consisting of two distinct cages: Sc@H<small>₂₄</small> and Y@H<small>₃₀</small>. By conducting an extensive numerical investigation of lattice dynamics, electron–phonon coupling, and solving the isotropic Eliashberg equation, we have revealed a significant value of <em>λ</em> = 3.27 as the underlying factor responsible for the remarkably high critical temperature (<em>T</em><small>_c</small>) of 302–330 K in YSc<small>₂</small>H<small>₂₄</small> at a pressure of 310 GPa. As pressure increases, the <em>T</em><small>_c</small> remains above the ambient temperature. Our work has the potential to enhance the existing understanding of high-temperature superconductors, with implications for practical applications. The unique network of these cage-like structures holds great promise for advancing our understanding of high-temperature superconductors, potentially leading to innovative applications.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565728","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":"Tough and adhesive conductive hydrogels with fast gelation from a polyphenol–aluminium ion dual self-catalysis system for wearable strain sensors and triboelectric nanogenerators†","authors":"Maolin Yu, Yuecong Luo, Qiannian Yang, Tengfei Duan, Zengmin Tang, Lijian Xu, Na Li and Jianxiong Xu","doi":"10.1039/D4TC02897J","DOIUrl":"10.1039/D4TC02897J","url":null,"abstract":"<p >Hydrogels have been widely used as flexible electrodes for the construction of strain sensors and triboelectric nanogenerators (TENGs) with high performance owing to their attractive flexibility and conductivity. However, traditional fabrication methods of hydrogels involve time-consuming synthesis and/or use of external stimuli (<em>i.e.</em>, heat and light). Herein, a tough and adhesive conductive double network hydrogel (PVA/PHEAA–TA–Al<small>³⁺</small> gel) was prepared <em>via</em> rapid <em>in situ</em> room temperature gelation processes (25 °C, 215 s) in a tannic acid–aluminium ion (TA–Al<small>³⁺</small>) dual self-catalysis system. This involved the collaborative use of TA–Al<small>³⁺</small> to induce the decomposition of ammonium persulfate (APS), which generated abundant free radicals to trigger the polymerization of the HEAA monomer within a polyvinyl alcohol/<em>N</em>-(2-hydroxyethyl)acrylamide/tannic acid (PVA/HEAA/TA) aqueous solution. The obtained hydrogel showed excellent mechanical properties (tensile stress/strain of 240 kPa/920%), adhesion, and self-healing ability. Benefitting from the ultra-wide sensing range (1–600%), high sensing sensitivity (GF = 2.7) and long-term stability (500 cycles), the PVA/PHEAA–TA–Al<small>³⁺</small> gel was used to construct a strain sensor, which can accurately identify and distinguish the changes in human expression and joint movement. Furthermore, the PVA/PHEAA–TA–Al<small>³⁺</small> gel was used to fabricate TENGs (named PT-TENGs). PT-TENGs with an area of 2 × 2 cm<small>²</small> exhibited attractive electrical output properties (<em>V</em><small>_OC</small> = 109 V, <em>I</em><small>_SC</small> = 1.3 μA, and <em>Q</em><small>_SC</small> = 35 nC at a fixed frequency of 2.0 Hz), which can power 22 LED arrays. This TA–Al<small>³⁺</small> dual self-catalysis system is expected to provide a new way for the fabrication of tough and adhesive conductive hydrogels toward health monitoring sensors and energy supply.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259508","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":"Self-powered photodetector with low dark current based on the InSe/β-Ga2O3 heterojunctions†","authors":"Yu-Qing Wang, Shuo Zhao, Hai-Ying Xiao, Jin-Zhong Wang, Ping-An Hu, Jun Qiao, YongQiang Zhang and Heng Hu","doi":"10.1039/D4TC02790F","DOIUrl":"10.1039/D4TC02790F","url":null,"abstract":"<p >Solar-blind photodetectors play an important role in many fields of solar-blind ultraviolet (UV) photodetection such as missile tracking and fire warning. A high-performance self-powered solar-blind photodetector was fabricated using InSe/β-Ga<small>₂</small>O<small>₃</small> heterojunction. The 4-inch wafer-scale β-Ga<small>₂</small>O<small>₃</small> film was prepared by a low-cost sol–gel process. The resulting β-Ga<small>₂</small>O<small>₃</small> film was flat and uniform with an RMS (Root Mean Square roughness) of 1.08 nm. A self-driven solar-blind UV photodetector of InSe/β-Ga<small>₂</small>O<small>₃</small> was constructed by stacking an InSe flake with a wide wavelength range of 230 nm to 800 nm. This detector could detect 230 nm deep UV under zero bias with a very small response dark current (3.98 fA) and a responsivity of about 122.69 μA W<small>⁻¹</small>. These impressive results demonstrate the potential of the 4-inch polycrystalline-oriented β-Ga<small>₂</small>O<small>₃</small> for light-conducting photovoltaic devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259509","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":"Enhancing visual luminescence detection of tetracycline antibiotics through regulation of nitrogen-containing ligand and antenna effect of Ln3+†","authors":"Tingting Liu, Mengna Ji, Jun Zheng, Nana Liu, Hongguo Hao, Jianmin Dou, Jingjing Jiang, Yunwu Li and Suna Wang","doi":"10.1039/D4TC02735C","DOIUrl":"https://doi.org/10.1039/D4TC02735C","url":null,"abstract":"<p >Two fluorescent Cd-MOFs were obtained by a solvothermal process using a flexible carboxylic acid ligand of 4-(3,5-dicarboxylatobenzyloxy) benzoic acid (H<small>₃</small>L) and flexible/rigid tripodal N-containing ligands of 1,3,5-tris(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene (ttytb) and 2,4,6-tris(4-pyridyl)-1,3,5-triazine (tpytz), namely, {[Cd(HL)(ttytb)]·DMF·3H<small>₂</small>O}<small>_<em>n</em></small> (<strong>LCU-127</strong>) and {[Cd(HL)(tpytz)(H<small>₂</small>O)]}<small>_<em>n</em></small> (<strong>LCU-128</strong>). <strong>LCU-127</strong> and <strong>LCU-128</strong> both display two-dimensional layered structures with an interesting intercalation mode. Due to the rigid conjugated rings in tpytz, <strong>LCU-128</strong> showed stronger blue emission than <strong>LCU-127</strong>. Accordingly, although both <strong>LCU-127</strong> and <strong>LCU-128</strong> could detect tetracycline antibiotic tetracycline (TC) through luminescence quenching, the visualization effect under UV light irradiation was much improved in the suspensions of <strong>LCU-128</strong>, which demonstrated a limit of detection (LOD) of 0.18 μM. Simultaneously, <strong>LCU-127</strong> exhibited higher selectivity and sensitivity toward Tb<small>³⁺</small> due to stronger antenna effect. When Tb<small>³⁺</small> was added to the suspension of <strong>LCU-127</strong>, the visual detection of oxytetracycline (OTC) was significantly improved with LOD of 45.51 μM. The rigidity or conjugation of the nitrogen-containing ligands may enhance the conjugation of the whole framework and further the electron transfer ability. Meanwhile, the antenna effect caused by the interaction between active sites in <strong>LCU-127</strong> and Tb<small>³⁺</small> could improve the luminescence performance. Furthermore, <strong>LCU-128</strong> and <strong>Tb<small>³⁺</small></strong> + <strong>LCU-127</strong> were effective in mixed matrix membranes (MMMs), which endows them with potential for application in rapid visual detection of antibiotics. The measurements conducted using real water samples revealed the recovery rates toward OTC and TC in the range of 94.7 to 103.0%. Our work indicates that visual detection could be achieved by the employment of more rigid conjugated moieties in the framework and introduction of Ln<small>³⁺</small> emitters by the antenna effect.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595225","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":"Melt-preparation of organic–inorganic Mn-based halide transparent ceramic scintillators for high-resolution X-ray imaging†","authors":"Zhi-Zhong Zhang, Zi-Lin He, Qing-Peng Peng, Jing-Hua Chen, Bang Lan and Dai-Bin Kuang","doi":"10.1039/D4TC03459G","DOIUrl":"https://doi.org/10.1039/D4TC03459G","url":null,"abstract":"<p >High-quality and large-size crystals are ideal scintillation screens to achieve high-resolution X-ray imaging. However, it is difficult to obtain large-size scintillation crystals due to the limitations of crystal growth technology. Here, organic–inorganic hybrid Mn-based single crystals (TBP<small>₂</small>MnBr<small>₄</small>, TBP = tetrabutylphosphonium) exhibit a high decomposition temperature (295 °C) and the TBP<small>₂</small>MnBr<small>₄</small>-melt has a low condensation point (48.75 °C), such a wide interval is of benefit to the melt processing method for preparing scintillation screens. The TBP<small>₂</small>MnBr<small>₄</small>-melt exhibits a low viscosity (<em>η</em>(<em>T</em><small>_m</small>) = 238 mPa s) and flow activation energy (<em>E</em><small>_a</small> = 10.754 kJ mol<small>⁻¹</small>) making it easy to crystallize. It is worth noting that the low condensation point (<em>T</em><small>_c</small>) of the TBP<small>₂</small>MnBr<small>₄</small>-melt is slightly higher than room temperature, and this narrow temperature interval can limit the rapid nucleation and growth of the crystals, allowing them to slowly crystallize into transparent ceramics (TC). Circular TBP<small>₂</small>MnBr<small>₄</small>-TC with a size of Φ 11.5 cm can be easily fabricated, which exhibits high optical transmittance, for realizing high-resolution (16 lp mm<small>⁻¹</small>) X-ray imaging. This work brings a new strategy for preparing scintillation screens, as well as promoting the development of TC scintillators for X-ray imaging.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595195","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":"Chiral self-assembled (β,d)-RIB-TPE micron vesicles with AIE characteristics used as targeting-drug carriers†","authors":"Mengyuan Niu, Yuliang Yang, Yue Sun, Yu Hu, Kaiyue Song and Xiaoxia Sun","doi":"10.1039/D4TC03202K","DOIUrl":"https://doi.org/10.1039/D4TC03202K","url":null,"abstract":"<p >A novel chiral fluorescent probe, tetraphenylvinyltriazole-ribosyl ribose derivative (β,<small>D</small>)-RIB-TPE, was prepared by Click reaction. It can self-assemble into amphiphilic micron vesicles in methanol solution. (β,<small>D</small>)-RIB-TPE has good AIE properties with a large Stokes shift (redshift 61.8 nm), self-assembles into J-aggregates in a mixed solution with 98% water content, and exhibits a relative fluorescence intensity <em>α</em><small>_AIE</small> = 24, emitting bright blue fluorescence. In addition to the micron vesicles, (β,<small>D</small>)-RIB-TPE self-assembled into J-aggregates in different mixtures, showing different morphologies, such as a cross-linked network structure and an irregular bulk stacking structure. The fluorescent probe (β,<small>D</small>)-RIB-TPE could achieve high efficiency and rapid multi-channel detection of clopidogrel <em>S</em>-(+)-sulfate by fluorescence chromatography and CD spectroscopy. Infrared, nuclear magnetic titration, scanning electron microscopy and DFT calculations confirmed that the probe (β,<small>D</small>)-RIB-TPE recognized <em>S</em>-(+)-clopidogrel sulfate by an ICT mechanism. (β,<small>D</small>)-RIB-TPE and <em>S</em>-(+)-clopidogrel sulfate were co-assembled in methanol to form single-target drug-carrying micron vesicles with a smaller particle size than the self-assembled (β,<small>D</small>)-RIB-TPE vesicles and good drug embedding capacity.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409100","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":"High performance ternary organic solar cells assisted by red fluorescent materials through improved emission lifetime and complementary short wavelength light absorption†","authors":"Yingze Lei, Zhiyong Liu and Han Zhang","doi":"10.1039/D4TC02796E","DOIUrl":"https://doi.org/10.1039/D4TC02796E","url":null,"abstract":"<p >The energy transfer from a third component material to donor materials and the broadening of the absorption spectrum of the photoactive layer both play an important role in the exciton dissociation process and enhancing photon utilization. Suppressing the charge recombination process and enhancing charge carrier transport are promising strategies to improve the photovoltaic performance of organic solar cells (OSCs). In this manuscript, an effective method is presented using the red fluorescence material 4-(dicyanomethylene)-2-<em>tert</em>-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4<em>H</em>-pyran (DCJTB) as the third component and PM6:Y6 as the host photoactive layer. The photoluminescence spectrum of DCJTB is fully covered by the absorption spectrum of PM6, indicating that the energy from DCJTB can transfer to PM6, which prolongs the exciton lifetime and ensures sufficient time for diffusion and dissociation. The efficient short wavelength light absorption capability of DCJTB is beneficial to enhance the photon utilization efficiency. In addition, a small amount of DCJTB as a third component material can improve the crystallinity of a film and provide more efficient charge transport channels. These results suggest that the ternary strategy with the red fluorescence material DCJTB as the third component provides a new design idea to realize high-performance OSCs.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565705","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":"Next-generation wearable sensors: toward multi-directional strain sensing in sensory integration platforms","authors":"Taehoon Hwang, Dashdendev Tsogbayar, Vanessa, Hyun Ho Choi and Hwa Sung Lee","doi":"10.1039/D4TC02692F","DOIUrl":"10.1039/D4TC02692F","url":null,"abstract":"<p >Wearable technologies and flexible electronics have developed rapidly owing to the emergence of cutting-edge cross-disciplines. The flexibility and tunable properties of organic materials enable wearable sensory systems to adapt to complex surface deformations and detect physiological signals sensitively. The demand for high-performance strain sensors, to accurately detect complex movements and environmental changes, in wearable technology has increased notably. However, current sensors primarily detect strain in a single direction, which restricts their effectiveness in detecting multi-directional strains, such as in natural human movements or robotic joints. In this review, we examine the advances and future challenges that may arise in the development of strain sensors that can measure both the magnitude and direction of external tensile strain. Additionally, we examine the sensor materials (platform and sensing materials) required to develop a strain sensor to detect the direction of tension, structural research on strain sensors, and various application fields such as human motion detection and human–machine interaction <em>via</em> system integration. Finally, we discuss the prospects and current challenges involved in the development of direction-selective strain sensors for wearable smart electronic systems or electronic skin. This review should provide a comprehensive reference for future technologies.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259516","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}