Chemistry of Materials最新文献

{"title":"Pseudoeutectic of Isodimorphism to Design a Random Copolyester Enabling Body Temperature-Induced Shape Stretchability and Programmed Deformations","authors":"Guangming Tian, Wenqiang Tang, Xin Zhang, Jianhua Ma, Guangming Zhu, Xingjian Li","doi":"10.1021/acs.chemmater.5c01486","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01486","url":null,"abstract":"The combined biodegradable and stimulus-responsive elastomers are an emerging class of smart materials used for biomedical devices by virtue of their tunable deformable stability and biological mimetic functions. However, the inherent high-triggering temperature and nonprogrammed deformation behavior reduce their advantages. The biodegradable copolyester-based elastomer with one-step stretchable and programmable shape morphing enables the design of functional biomedical devices that would otherwise be impossible to realize with conventional manufacturing techniques. Shown here is that a dynamic random copolyester elastomer with comparable crystallinity and the combined body temperature responsiveness displays excellent shape stretchability, as well as strain-induced crystallization for shape maintaining. We demonstrate that the poly[(ε-caprolactone)-<i>ran</i>-(δ-valerolactone)] precursors via one-pot melt-induced transesterification exhibited tunable thermal characteristics with the lowest melting point of 29.3 °C. Upon further secondary photoinitiated thiol–ene click of acrylate-terminated precursors in the pseudoeutectic point and dynamic transesterification, the resulting architecture affords the elastomer with shape reconfiguration and responsiveness for programmable shape transformations on demand. Further results on in vitro cytocompatibility demonstrate that the elastomer could be employed as an important biomedical vascular stent, offering insights into the design of smart biomedical devices.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"57 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133880","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":"Machine-Learning-Assisted Discovery of Cr3+-Based Near-Infrared Phosphors","authors":"Amit Kumar, Arslan Akbar, Hannah Lesmes, Seán R. Kavanagh, David O. Scanlon, Jakoah Brgoch","doi":"10.1021/acs.chemmater.5c01208","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01208","url":null,"abstract":"Cr³⁺-substituted inorganic phosphors exhibit three distinct near-infrared (NIR) photoluminescence emission peak shapes that typically fall between 650 and 950 nm. The exact position and shape are governed by the (weak, intermediate, or strong) crystal field splitting environment of the octahedrally coordinated Cr³⁺ ions. These emission characteristics are commonly quantified by the Dq/<i>B</i> ratio, where Dq represents the crystal field splitting parameter and <i>B</i> is the Racah parameter. Precise knowledge of this ratio is therefore critical for designing Cr³⁺-based NIR phosphors for applications like biomedical imaging, night vision, food quality analysis, and luminescence thermometry. Unfortunately, targeting specific Dq/<i>B</i> values in the solid state remains nontrivial due to the complex interplay between the composition, structure, and local coordination environment. To address this challenge, we developed a machine-learned regression model capable of predicting Dq/<i>B</i> trained on 193 experimentally determined Dq/<i>B</i> values and their associated compositional and structural features. We then applied it to estimate the Dq/<i>B</i> values of over 6060 known inorganic structures with potential octahedral Cr³⁺ substitution sites. Eight phosphor hosts, Y₂Mg₃Ge₃O₁₂, YInGe₂O₇, LiInW₂O₆, Gd₃SbO₇, Ba₂ScTaO₆, Ba₂MgWO₆, LiLaMgWO₆, and Ca₃MgSi₂O₈, representing a range of crystal field environments were selected from this list for synthesis and characterization. Their measured Dq/<i>B</i> values closely match model predictions, demonstrating the utility of this machine-learning framework for accelerating the discovery of application-specific Cr³⁺-substituted NIR phosphors.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"88 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089424","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":"Enhanced Oxide Ion Diffusion by Lanthanum Substitution in the Palmierite Sr3–3xLa2xV2O8 via Increased Tetrahedral Distortion and Cation Vacancies","authors":"Victoria Watson, Ying Zhou, Ronald I. Smith, Sacha Fop, Yi Sun, Zongping Shao, San Ping Jiang, Oscar J. B. Ballantyne, James A. Dawson, Abbie C. Mclaughlin","doi":"10.1021/acs.chemmater.5c01856","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01856","url":null,"abstract":"Promising ionic conductivity has previously been reported in the palmierite oxide Sr₃V₂O₈. Oxide-ion diffusion within this system occurs via the “cog-wheel” mechanism where rotation of VO₄ and oxygen deficient VO₃ units result in the formation of V₂O₇ dimers which continuously break and reform. During this process an oxide ion from a VO₄ tetrahedra can move to the vacant site of the VO₃ group, facilitating the movement of oxide-ions throughout the structure. Here, we report the electrical and structural properties of the series Sr_{3–3<i>x</i>}La_2<i>x</i>V₂O₈ (<i>x</i> = 0.00–0.25). Combined neutron diffraction and atomistic simulations reveal that substituting Sr²⁺ with La³⁺ results in ordered cation vacancies, an elongation of the apical V–O1 bond and an increase in the distortion of the VO₄ tetrahedra, which together enhances the cog-wheel-like rotational dynamics of the VO₄ tetrahedra that mediate oxide ion transport. Molecular dynamics simulations further indicate that La-substitution facilitates the formation of a continuous diffusion network, leading to improved oxide ion conductivity so that Sr_2.55La_0.3V₂O₈ (<i>x</i> = 0.15) exhibits the highest bulk conductivity of 7.64 × 10^–4 S cm ^–1 at 700 °C, an order of magnitude higher than Sr₃V₂O₈. The results demonstrate that palmierites are highly flexible to doping strategies for improving the oxide ion conductivity.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"35 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089733","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":"Polyphosphate/Hydrophobic Alkane/Polyaldehyde Activated Biodegradable Hemostatic Sponge Adhesive with High Procoagulant and Postoperative Antiadhesion Effects","authors":"Tongyang Li, Lei Mu, Kun You, Yixing Li, Yutong Yang, Zhe Chen, Guangjian Zhang, Zhanhai Yin, Xin Zhao, Lei Tian, Baolin Guo","doi":"10.1021/acs.chemmater.5c01917","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01917","url":null,"abstract":"Excessive blood loss is a key factor in death, while the control of bleeding is still a major clinical and emergency problem. Existing hemostatic materials usually have limited procoagulant properties, are either nondegradable or poorly degradable, and are prone to tissue adhesion. There are still challenges in developing hemostatic materials with efficient procoagulant effects, good degradability, and antitissue adhesion properties. Here, we design a hemostatic sponge adhesive made of polyphosphate-modified oxidized dextran (OD-P) and lauric acid-modified oxidized dextran (OD-L) by directly freeze-drying the mixture of OD-P and OD-L for hemostasis and postoperative antiadhesion. Polyphosphate and lauric acid significantly enhance the procoagulant property of the OD-P/OD-L sponge. The sponge has concentration-dependent mechanical strength and a good adhesion property to biological tissues. Besides, it has good biocompatibility and quick biodegradation without causing serious toxicity. Compared with commercial gelatin sponge, the optimized OD-P/OD-L sponge has much better hemostatic ability due to the combination of procoagulant property and wound sealing effect, showing less blood loss and shorter hemostasis time in animal bleeding models. In addition, the OD-P/OD-L sponge also demonstrates excellent antiadhesion properties in an abdomen-cecum adhesion model. This work provides a facile approach for designing hemostatic materials with integrated hemostasis and antiadhesion properties.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"21 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145077749","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":"Molecular Modifications of Crystalline Poly(triazine imide) for Advancing Its Structure–Property Relationships in Light-Driven Catalysis","authors":"Scott McGuigan, Carrie L. Donley, Erika Ortega Ortiz, Shaun O’Donnell, Magnus Pauly, William C. Hockaday, Eric A. Stach, Paul A. Maggard","doi":"10.1021/acs.chemmater.5c01007","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01007","url":null,"abstract":"Carbon-nitride materials represent light-absorbing structures composed of earth-abundant elements capable of being leveraged for semiconductor photocatalysis at their surfaces. This study systematically investigates the addition of molecular modifiers to the synthesis of crystalline carbon nitrides to assess their effects on the materials’ structure, optical bandgap, and photocatalytic activity for hydrogen (H₂) and oxygen (O₂) evolution under ultraviolet and visible-light irradiation. Melamine and five pyrimidine-centered analogs were employed as building blocks to modify various heteroatoms within the polymeric framework. The modified materials were characterized with attention to the differences introduced by the monomeric modifiers and their influence on the resulting structures and compositions. The findings indicate that these changes significantly broaden the visible-light absorption range, albeit with the gradual loss of the bulk crystalline structure. As the loading of modifiers increased beyond 50%, a predominantly amorphous form of carbon nitride emerged. XPS, ¹³C solid-state NMR, and SEM analyses corroborated the changes, which were attributed to modifications of the elemental composition and a reduced amount of Li cations and charge-balancing Cl anions owing to fewer binding sites in the intralayer cavities. In photocatalytic measurements under an ultraviolet 390 nm LED, and aided by photodeposited nanoparticle cocatalysts, the unmodified PTI-LiCl framework demonstrated the highest H₂ evolution rate (HER; 3.44 mmol·g^–1·h^–1) with an apparent quantum yield of 5.4%, along with total water splitting at rates of 163 μmol of H₂·g^–1·h^–1 and 75.6 μmol·O₂ g^–1·h^–1. While PTI-LiCl showed trace activity under a visible-light 440 nm LED, all modified materials exhibited enhanced reactivity with as low as 5% molecular modifiers. The photocatalytic rates peaked at a 15% modification level when using 2,4,6-triaminopyrimidine, with rates of 33 μmol·g^–1·h^–1 for HER, along with 19.7 μmol of H₂·g^–1·h^–1 and 8.7 μmol of O₂·g^–1·h^–1 for total water splitting. Density functional theory calculations were used to probe electronic structure changes resulting from the modifications. Thus, these results elucidate the structural, optical, and electronic changes arising from the five selected molecular modifiers and their impact on the semiconductors’ photocatalytic properties.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"54 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089454","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 Machine Learning Model for Copolymer Radical Reactivity Ratio Predictions with Frontier-Orbital Insights","authors":"Jingdan Chen, Nicholas E. Jackson","doi":"10.1021/acs.chemmater.5c01608","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01608","url":null,"abstract":"Accurate predictions of reactivity ratios (RRs) are crucial for understanding and controlling copolymerization kinetics and the resulting copolymer microstructure. While various methods have been proposed for RR prediction, prior efforts have been limited by a lack of data accessibility, model interpretability, and out-of-distribution performance on new chemical spaces. We address these challenges by assembling a data set of copolymer RRs extracted from the experimental literature and then developing a machine learning model that demonstrates robustness in predicting RRs for diverse monomers and radical chemistries. The Shapley additive explanations (SHAP) analysis of the machine learning model reveals the significant role of frontier molecular orbital (FMO) interactions, corroborating earlier RR prediction models emphasizing the bipolar reactivity of radicals in copolymerization. Importantly, this machine learning model leads to an intuitive argument based on the relative chemical potential and chemical hardness of comonomers that enables predictions of copolymerization regimes based on simple density functional theory calculations.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"1 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145077748","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":"Fundamentals and Applications of Eutectic Gel Electrolytes for Next-Generation Batteries","authors":"Yanan Lai, Xin Zhong, Shuo Zhang, Gyumin Kim, Jiwoong Bae, Yu Ding, Guoran Li","doi":"10.1021/acs.chemmater.5c02012","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c02012","url":null,"abstract":"Eutectic gel electrolytes (EGEs), formed by incorporating deep eutectic solvents (DESs) into polymer matrices, represent a promising category of gel electrolytes for next-generation batteries. By combining the high ionic conductivity and tunable solvation environment of DESs with the mechanical robustness and structural integrity of polymer matrices, EGEs present an advantageous combination of electrochemical capability and structural reliability. This review provides a comprehensive overview of recent progress in the design, synthesis, and functional understanding of EGEs. Particular attention is given to the modulation of solvation structures, enhancement of electrode/electrolyte interfacial compatibility, and environmental adaptability. Major fabrication approaches, encompassing both in situ and ex situ methods, are comparatively evaluated with respect to their impact on electrochemical stability range, ionic transport characteristics, and mechanical durability. The integration of EGEs into next-generation batteries, such as lithium, sodium, zinc, and emerging multivalent magnesium systems, is critically examined, with emphasis on their roles in suppressing dendrite formation, enhancing electrolyte stability, and improving compatibility with reactive metal anodes. Finally, we outline current limitations and suggest future directions, emphasizing the need for deeper mechanistic insights into ion coordination and interface dynamics, along with scalable fabrication routes that can accelerate the deployment of EGEs in next-generation batteries combining high performance, flexibility, and inherent safety.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"80 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145077828","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":"All-Inorganic Sb-Doped Cs3MnCl5 Nanocrystals Enable Multi-Codon Visible Emissions via Coupled Multiexcitonic Processes for Advanced Optical Encryption","authors":"Jianru Wang, Yuxiang Xin, Xiachu Xiao, Nadeem Abbas, Enze Kang, Ran Jia, Yibo Han, Jiang Tang, Zhuolei Zhang","doi":"10.1021/acs.chemmater.5c01792","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01792","url":null,"abstract":"Luminescent metal halides have garnered significant attention for next-generation optoelectronic applications, particularly in information encryption, due to their excellent optical properties and ease of solution-based processing. In this study, we present Sb-doped Cs₃MnCl₅ nanocrystals (NCs) as a highly promising candidate for advanced information security applications. For the first time, we successfully synthesized these NCs with a high photoluminescence quantum yield (∼80%) using a hot-injection method. By doping with Sb³⁺ ions, we expanded the emission spectrum across the visible range─from green to red light, including yellow-green, orange, and orange-red─enabling unprecedented spectral modulation in manganese-based metal halide perovskites. Through spectral analysis and density functional theory (DFT) computations, it is found that the 525 nm emission arises from the d–d transition of Mn²⁺ ions in a tetrahedral coordination environment, while the 660 nm emission is attributed to self-trapped excitons from Sb³⁺ ions, facilitated by energy transfer from Mn–Mn d–d transitions. This mechanism differs from previously reported decoupled multiexcitonic luminescence in Sb³⁺ doped perovskite materials, enabling more efficient tuning of the relative intensity between the dual emissions through variation in dopant concentrations and excitation wavelengths. Furthermore, Sb³⁺ doping enables excitation wavelength-dependent emissions, allowing for the generation of multiple codons with distinct variations at different concentrations. This tunable emission capability proves highly effective for encrypting multilevel optical codes, offering significant advantages over conventional anticounterfeiting materials. Our findings provide valuable insights for designing low-toxicity, high-efficiency perovskites with tunable emission properties for practical information security applications.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"55 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145077829","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":"Ligand Isomerism-Assisted Electrochemical Process Modulation","authors":"Sanchayita Mukhopadhyay, Harish Makri Nimbegondi Kotresh, Musthafa Ottakam Thotiyl","doi":"10.1021/acs.chemmater.5c01292","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01292","url":null,"abstract":"While the central metal ion in molecular systems has conventionally been regarded as the primary driver of electrochemical activity, emerging evidence highlights the critical role of ligand nature and, notably, ligand isomerism in modulating electrochemical kinetics, mechanisms, and energy storage. This perspective discusses how molecular-scale structural variations in ligands influence interfacial dynamics and reaction pathways, often rivaling or surpassing metal-centered effects. These findings challenge conventional design strategies and emphasize the importance of considering ligand architecture as equally vital as the metal ion in molecular electrochemistry. A deeper understanding of these ligand effects will guide the development of highly efficient and tunable molecular platforms, enabling precise control over electrochemical processes and driving transformative breakthroughs across energy, catalysis, and materials science.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"1 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145077750","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":"From Deep Cryogenics to Extreme Heat: Unlocking Single-Ion Luminescent Thermometry with Pr3+-Activated Ca3Sc2Si3O12 and Ca3Sc2Ge3O12 Garnets","authors":"Dagmara Kulesza, Justyna Zeler, Markus Suta, Eugeniusz Zych","doi":"10.1021/acs.chemmater.5c01216","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c01216","url":null,"abstract":"Luminescence thermometry is gaining prominence as a noncontact-reading temperature sensing technique, offering high precision, robustness, and material tunability. In this work, we report Pr³⁺-doped garnets, Ca₃Sc₂Si₃O₁₂:0.1% Pr and Ca₃Sc₂Ge₃O₁₂:0.1% Pr, as promising candidates for wide-range optical thermometry based on both emission intensity and decay time metrics. The silicate garnet exhibits a record operational range of 25–1225 K, with relative thermal sensitivity spanning 0.5–1.3%·K^–1 over 250–1225 K, sustained by intense and thermally controlled 4f¹5d¹ → 4f² emission. Temperature-dependent luminescence measurements reveal a continuous and monotonic decrease in both emission intensity and lifetime, supporting two-modal reliable, quantitative thermal readout. At elevated temperatures (≥900 K), thermally stimulated back-transfer from the ¹D₂ to the ³P₀ level activates an additional ³P₀/¹D₂ intensity ratio metric, achieving 0.44%·K^–1 sensitivity. The germanate counterpart shows strong performance in the 20–225 K range, with relative sensitivities exceeding 5%·K^–1. These Pr³⁺-activated phosphors, featuring submicron particle size, phase stability, and broad thermal response, enable multimodal, single-ion thermometry across a continuous, ultrawide temperature span. These findings highlight the potential of garnet hosts for next-generation luminescent thermometers in high-demand environments such as catalysis, aerospace, nuclear monitoring, and space exploration.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"1 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073056","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}