Materials Chemistry Frontiers最新文献

{"title":"Polymeric mixed ionic–electronic conductors based on quinoid–azaisoindigo for n-type organic electrochemical transistors†","authors":"Juntao Tan, Yiming Wang, Xiuyuan Zhu, Jiayao Duan, Riping Liu, Chaoyue Chen, Chong Ran, Zhengke Li, Bin Ai and Wan Yue","doi":"10.1039/D4QM01004C","DOIUrl":"https://doi.org/10.1039/D4QM01004C","url":null,"abstract":"<p >In the pursuit of channel materials for high-performance n-type organic electrochemical transistors (OECTs), several challenges have been encountered, including difficulties in the modification of the material structure, relatively low performance, and poor stability. To address these issues, designing innovative electron-deficient building blocks is critical for constructing novel donor–acceptor organic semiconductors with low LUMO levels to achieve high-performing n-type OECTs. In this study, we have designed and synthesized a novel glycolated quinone-based electron-deficient building block derived from azaisoindigo (AQM2I), featuring a cross-conjugated planar backbone and low LUMO levels, attributed to enhanced O–H interactions and strong electron-withdrawing amide groups. By combining AQM2I with alternating electron-rich building blocks (T, TT, 2T and 2FT), a series of novel n-type polymers that possessed mixed ionic–electronic conductivity were prepared. The incorporation of various electron-rich building blocks effectively modulates the backbone structure, molecular energy levels and sodium doping capability of the polymers. Moreover, a mixed conducting property with a maximum <em>μC</em>* figure-of-merit value of 0.53 F V<small>⁻¹</small> cm<small>⁻¹</small> s<small>⁻¹</small> for accumulation-mode n-type OECT was achieved, attributed to the high electron mobility induced by the enhanced lamellar stacking, smooth and dense film morphology. The design strategy for novel electron-deficient building blocks presented in this work provides insights for the development of high-performance materials for n-type OECTs.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 4","pages":" 725-734"},"PeriodicalIF":6.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379678","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":"Arrays of ultra-thin selenium-doped zirconium-anodic-oxide nanorods as potential antibacterial coatings†","authors":"Kirill Kamnev, Maria Bendova, Zdenka Fohlerova, Tatiana Fialova, Oleh Martyniuk, Jan Prasek, Kristyna Cihalova and Alexander Mozalev","doi":"10.1039/D4QM01081G","DOIUrl":"https://doi.org/10.1039/D4QM01081G","url":null,"abstract":"<p >Two characteristic types of extraordinarily thin upright-standing ZrO<small>₂</small>-based nanorods self-aligned on a substrate, differing in diameters (20/30 nm), lengths (90/120 nm), and population densities (1.1/4.6 × 10<small>¹⁰</small> cm<small>⁻²</small>), were synthesized <em>via</em> the porous-anodic-alumina (PAA)-assisted anodization of Zr in 1.5 M selenic acid followed by selective PAA dissolution. A needle-like shape was achieved due to the unique formation of zirconium anodic oxide in extremely thin nanopores that grow only in selenic acid. The SEM, XPS, and Raman spectroscopy analyses revealed that the nanorods feature a core/shell structure in which the core is stoichiometric amorphous ZrO<small>₂</small>, and the shell is ∼6 nm thick hydroxylated zirconium dioxide ZrO<small>_{2−<em>x</em>}</small>(OH)<small>_2<em>x</em></small> mixed with Al<small>₂</small>O<small>₃</small>. The core and shell incorporated electrolyte-derived selenate (SeO<small>₄</small><small>²⁻</small>) ions, which replace up to 1% of the O<small>²⁻</small> ions in the nanorod surface layer. Besides, nanoparticles of elemental Se were deposited on the top of rods during anodic polarization. A model was developed for the cooperative ionic transport and electrochemical and solid-state reactions during the PAA-assisted growth of zirconium oxide in selenic acid. The two Se-doped top-decorated zirconium-oxide nanorod arrays were examined as potential antibacterial nanomaterials toward G-negative <em>E. coli</em> and G-positive <em>S. aureus</em>, using direct SEM observations of the bacteria–surface interfaces and carrying out the modified Japanese Industrial Standard test for antimicrobial activity and efficacy, JIS Z 2801. While specific differences in interaction with each type of bacteria were observed, both nanostructures caused a significant harmful synergetic effect on the bacteria, acting as non-metallic (Se) ion-releasing bactericidal coatings along with repellent and contact-killing activities arising from extraordinary needle-like nanoscale surface engineering.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 5","pages":" 866-883"},"PeriodicalIF":6.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm01081g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480869","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":"On-surface gold-catalyzed hydroamination/cyclization reaction of alkynes†","authors":"Alejandro Jiménez-Martín, Tatiana Munteanu, Qifan Chen, Simon Pascal, Aura Tintaru, Benjamin Mallada, Pingo Mutombo, Olivier Siri, Pavel Jelínek and Bruno de la Torre","doi":"10.1039/D4QM00866A","DOIUrl":"https://doi.org/10.1039/D4QM00866A","url":null,"abstract":"<p >On-surface synthesis under ultra-high vacuum (UHV) conditions facilitates the fabrication of unique molecular compounds, replicating established in-solution protocols. However, the intramolecular hydroamination and cyclization (IHC) of alkynes on surfaces remain unexplored due to the challenges posed by the repulsion between the nitrogen lone pair and the alkyne π-system. Here we describe the first on-surface IHC of alkyne-functionalized molecular precursors in UHV environment on the Au(111) surface. Notably, the synthesis introduces two pyrrole groups into the quinoidal-based precursor, enabling the formation of two fused pyrrolo-benzoquinonediimine compounds not achievable in solution chemistry. To analyze the resulting reaction products, we utilized scanning tunneling microscopy and non-contact atomic force microscopy with single bond resolution, comparing these products to those obtained through traditional solution methods. In parallel to the experimental results, we provide a detailed computational description of the key role of single gold adatoms during the complete on-surface reaction.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 5","pages":" 838-846"},"PeriodicalIF":6.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm00866a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480865","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":"Achieving dual-mode long-persistence afterglow through an aromatic furan organic host–guest system†","authors":"Zheng Gong, Qingyang Cui, Xiancheng Nie, Guoqing Zhang and Biao Chen","doi":"10.1039/D4QM00977K","DOIUrl":"https://doi.org/10.1039/D4QM00977K","url":null,"abstract":"<p >Pure organic long-persistence luminescence has recently garnered significant attention due to its diverse potential applications. Nonetheless, the attainment of pure organic dual-mode long-persistence afterglow with high efficiency remains a significant challenge. Herein, we report the successful realization of high-efficiency, color-tunable dual-mode room-temperature phosphorescence (RTP) along with thermally activated delayed fluorescence (TADF) of approximately 50 ms, utilizing an aromatic furan organic host–guest system. Our investigation into this system reveals two key findings: (1) the heavy-atom effect of the host and guest molecules plays distinct roles in modulating the efficiency of the intersystem crossing (ISC) and reverse intersystem crossing (RISC) processes; and (2) the dual-mode long-persistence luminescence can be effectively adjusted by manipulating the energy gap between the excited triplet states of host and guest molecules. Additionally, we demonstrated the capability for color display utilizing this host–guest system through inkjet printing.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 4","pages":" 676-683"},"PeriodicalIF":6.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/qm/d4qm00977k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379718","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":"Skeletal editing of pyrimidines: new approaches to diverse high energy density materials","authors":"Xinyu Du, Qi Lai, Shanjun Zhang, Ping Yin, Yingqi Xia and Siping Pang","doi":"10.1039/D4QM01120A","DOIUrl":"https://doi.org/10.1039/D4QM01120A","url":null,"abstract":"<p >Exploring the structural diversity of skeletons is a pivotal strategy for seeking new energetic materials. However, the complicated skeletons often require cumbersome synthesis, which not only increases the cost but also faces unknown risks for handling energetic metastable intermediates. This review aims to collect recent progress in skeleton-editing reactions of pyrimidine through ring-opening and ring-closing processes, as well as subsequent functional group modifications. The skeleton-editing reactions and further derivations enable easy access to a broad scope of high-energy backbones, such as open-chain, monocyclic, bicyclic, and fused skeletons. Most of the energetic compounds showed promising energy properties. In addition, the low-cost raw materials, simple synthesis steps, practical applications, and other considerations provide a critical reference for further developing new energetic materials.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 6","pages":" 894-909"},"PeriodicalIF":6.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New opportunities for emerging two-dimensional metastable-phase noble metal oxides in acidic electrocatalytic water splitting","authors":"Qun Wang, Mingwang Shao and Qi Shao","doi":"10.1039/D4QM00682H","DOIUrl":"https://doi.org/10.1039/D4QM00682H","url":null,"abstract":"<p >Metastable-phase materials possess unique structures, high Gibbs free energy, abundant active sites, and adjustable physicochemical properties, making them ideal candidates for optimizing electrocatalysis. As metal oxides are stable under harsh reaction conditions, by controlling the morphology, defects and phase structure of the material, the surface electronic structure of metal oxides can be adjusted to a great extent, and their catalytic performance can be optimized. As a novel addition to the 2D material family, metastable-phase noble metal oxides exhibit significant promise for catalytic reactions. Here, the latest research progress and advantages of 2D metastable-phase noble metal oxides are reviewed, and their application in acidic electrocatalytic water splitting is presented. Finally, the challenges associated with 2D metastable-phase noble metal oxides and future perspectives are discussed.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 4","pages":" 580-591"},"PeriodicalIF":6.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379674","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":"Steric hindrance of organotin compounds in controlling the batch-to-batch variance of photovoltaic polymer donors†","authors":"Yongrui He, Yuchen Yue, Jingfa Zhang, Ying Huang, Xucong Zhou, Han Shen, Kuan Li, Jie Shen, Landi Zeng, Jingjing Liu, Jingxia Wang, Bin Wang, Lei Jiang, Lijun Huo and Bing Zheng","doi":"10.1039/D5QM00005J","DOIUrl":"https://doi.org/10.1039/D5QM00005J","url":null,"abstract":"<p >Owing to its advantages of mild reaction conditions and a single reaction system, Stille coupling has become the main method of developing high-performance photovoltaic polymers. However, Stille coupling polycondensation, following a step-growth polymerization mechanism, still presents challenges in controlling the molecular weights of the polymers, leading to significant batch-to-batch variance. Herein, a strategy based on steric effects was applied to reduce molecular weight fluctuations using the large steric groups of organotin compounds to increase the difficulty of forming the transmetalation transition state. Consequently, we conducted competition experiments with small molecules and synthesized three polymers (<strong>PDF-1</strong>, <strong>PDF-2</strong>, and <strong>PDF-3</strong>) using BDF-based organotin compounds with varying steric hindrance. Theoretical calculations proved that the steric hindrance of organotin compounds significantly influenced the transition state in the transmetalation process. Device measurements revealed that the larger steric hindrance of organostannides could produce polymers with concentrated molecular weights, resulting in only a slight change in the PCEs. Although excessive steric hindrance could affect the photovoltaic properties, leading to lower PCEs, appropriate steric control of organostannides could yield polymer donors with high performance and low batch-to-batch variance. Therefore, this work provides guidelines for developing polymers with minimal batch-to-batch variance.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 5","pages":" 847-855"},"PeriodicalIF":6.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480828","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":"Construction of full-color room-temperature afterglow materials using dicyanomethylene-4H-pyrans based on an alkene conjugated bridge as the third component†","authors":"Jiayin Qian, Wenbo Dai, Xiaoyu Qiu, Shuai Xia, Yunxiang Lei, Miaochang Liu, Yan Guan, Xiaobo Huang and Huayue Wu","doi":"10.1039/D4QM01025F","DOIUrl":"https://doi.org/10.1039/D4QM01025F","url":null,"abstract":"<p >Although the alkene bond as a connecting unit is widely used to construct D–π–A luminescent molecules, room-temperature afterglow (RTA) systems containing this kind of molecule are extremely rare. In this work, a series of multi-component doped RTA materials were prepared using polyvinylpyrrolidone as the host, 2-(4-chlorophenyl)-1-(4-(diphenylamino)phenyl)ethan-1-one as the guest, dicyanomethylene-4<em>H</em>-pyrans with an alkene bond bridge as the third component, and <strong>RhB</strong> and <strong>Cy5</strong> as the fourth component. Two-component materials emit bright cyan room-temperature phosphorescence; three-component materials emit yellow-green, orange, and red afterglows, respectively; and four-component doped materials further exhibit afterglow at 740 nm in the near-infrared region. The RTA emissions of three-component and four-component materials have been shown to be delayed fluorescence, which is caused by the phosphorescence of the second component transitioning from the triplet state to the singlet state and thus the domino-type Förster resonance energy transfer of S<small>₁</small>–S<small>₁</small> between different luminescent molecules. The results reveal that using dicyanomethylene-4<em>H</em>-pyrans as the third component can lead to full-color afterglow emissions. This work gives a possible development direction for the construction of RTA materials using D–π–A fluorescent molecules.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 5","pages":" 818-827"},"PeriodicalIF":6.0,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480826","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 strongly coupled FeS2@TiO2 heterostructure with an island-like structure for high-efficiency lithium storage†","authors":"Luchao Yue, Wei Song, Yu Feng, Lixin Zhang, Ruina Shi, Lin Jiang, Jing Song, Guisheng Qi and Xuping Sun","doi":"10.1039/D4QM00675E","DOIUrl":"https://doi.org/10.1039/D4QM00675E","url":null,"abstract":"<p >Titanium dioxide (TiO<small>₂</small>) has garnered substantial interest as a potential anode material for advanced lithium-ion batteries (LIBs) owing to its superior structural stability, rapid pseudocapacitive kinetics, economic viability, and nontoxicity. Nevertheless, its practical application is significantly curtailed by the limitations in specific capacity and inferior intrinsic electronic conductivity. Although carbonaceous materials can enhance electronic conductivity to a certain extent, the deficiency in lithium storage capacity persists as a critical issue requiring amelioration. Herein, we introduce a unique heterostructure composed of TiO<small>₂</small> nanobelts and FeS<small>₂</small> nanoparticles, fabricated through a hydrothermal method, followed by cation exchange and a sulfidation process. For the heterostructure, FeS<small>₂</small> nanoparticles are <em>in situ</em> anchored on the surface of TiO<small>₂</small> nanobelts, forming an island-like p–n heterostructure (FeS<small>₂</small>@TiO<small>₂</small>). The incorporation of FeS<small>₂</small> featuring high specific capacity facilitates the emergence of a built-in electric field at the interface between the two compounds, thereby expediting the charge transport during the lithium storage process. As a consequence, the island-like FeS<small>₂</small>@TiO<small>₂</small> p–n heterostructure delivers a remarkable reversible capacity of 584.9 mA h g<small>⁻¹</small> at 1.0 A g<small>⁻¹</small> after 300 cycles, along with superior rate capability (average capacity of 204.8 mA h g<small>⁻¹</small> at 10.0 A g<small>⁻¹</small>). Even at 5.0 A g<small>⁻¹</small>, the FeS<small>₂</small>@TiO<small>₂</small> anode maintains a substantial specific capacity of 251.2 mA h g<small>⁻¹</small> over 3000 cycles, revealing its outstanding cycling stability. This study suggests that the design strategy coupling TiO<small>₂</small> with other materials that possess high specific capacity could be broadly applied to enhance its electrochemical performance.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 5","pages":" 800-808"},"PeriodicalIF":6.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480824","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":"Synthesis and luminescence of Al based double perovskite quantum dots†","authors":"Liyuan Zhang, Chasina Wang and Chuanlang Zhan","doi":"10.1039/D4QM00967C","DOIUrl":"https://doi.org/10.1039/D4QM00967C","url":null,"abstract":"<p >Direct-bandgap AgIn based non-lead double perovskite quantum dots (DPQDs) face the challenge of low photoluminescence quantum yields (PLQYs). To address this issue, approaches such as ion doping and surface passivation have been developed, by which both emission color and intensity have been modulated. In this article, we selected (<em>r</em><small>_{Al<small>³⁺</small>}</small> = 0.053) to replace In<small>³⁺</small> (<em>r</em><small>_{In<small>³⁺</small>}</small> = 0.081 nm) and further used Na<small>⁺</small> (<em>r</em><small>_{Na<small>⁺</small>}</small> = 0.098 nm) to replace Ag<small>⁺</small> (<em>r</em><small>_{Ag<small>⁺</small>}</small> = 0.126 nm), resulting in the synthesis of two new types of non-doped DPQDs, <em>i.e.</em> Cs<small>₂</small>AgAlCl<small>₆</small> and Cs<small>₂</small>NaAlCl<small>₆</small>. The synthesized Al-based DPQDs have a hexagonal polycrystalline structure with average sizes of 8.84 nm and 5.76 nm, respectively. X-ray diffraction (XRD) data indicate the lattice contraction of Cs<small>₂</small>AgAlCl<small>₆</small> and Cs<small>₂</small>NaAlCl<small>₆</small> DPQDs in comparison to Cs<small>₂</small>AgInCl<small>₆</small>. X-ray photoelectron spectroscopy (XPS) data indicate the presence of all four elements Cs, Ag/Na, Al and Cl in the QDs. Compared with Cs<small>₂</small>AgInCl<small>₆</small> DPQDs, replacement of In<small>³⁺</small> with Al<small>³⁺</small> increases the PLQY from 1.5% to 7.4% and further to 8.5% when Ag<small>⁺</small> is further replaced with Na<small>⁺</small>. Doping the Cs<small>₂</small>AgAlCl<small>₆</small> and Cs<small>₂</small>NaAlCl<small>₆</small> DPQDs with Bi<small>³⁺</small> ions further increases the PLQYs to 10.1% and 11.4%, respectively. The PLQY of Cs<small>₂</small>AgAlCl<small>₆</small> DPQDs is again increased to 10.9% with the use of a ligand mixture of <em>n</em>-trioctylphosphine : oleylamine (40% : 60%). Our results demonstrate that the replacement of In<small>³⁺</small> with small radius Al<small>³⁺</small> is an effective strategy to enhance the emission of non-doped pristine direct-bandgap DPQDs and open an avenue for designing new types of DPQDs.</p>","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 7","pages":" 1118-1126"},"PeriodicalIF":6.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688102","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}