GIANT最新文献

{"title":"Fission of quasi-static dissipative solitons in chiral nematics","authors":"Jian-Zhou Lin ,&nbsp;Ao-Jie Wu ,&nbsp;Li-Ting Zhu ,&nbsp;Ke-Hui Wu ,&nbsp;Sen-Sen Li ,&nbsp;Lu-Jian Chen","doi":"10.1016/j.giant.2024.100312","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100312","url":null,"abstract":"<div><p>Dissipative solitons in liquid crystals (LCs) are represented by three-dimensional solitary waves of director deformation called directrons. The only one exception on the quasi-static counterparts of directrons has ever been observed in achiral nematics. In this work, quasi-static solitons and their fission are identified in chiral nematics. The structure, distribution and fission of quasi-static solitons are closely related to the pitch of samples. The critical pitch is about 7.0 µm for LC cells with thickness of ∼10.0 µm. Quasi-static solitons are transformed from directrons by stepping down voltage to facilitate locating solitons. Successive two-soliton fission with increasing fission time occurs for all quasi-static solitons in samples of relatively larger pitches. Multi-soliton fission is also found in some quasi-static solitons when the voltage is stepped up back to the directron domain, leaving behind a region that can modify the trajectories of surrounding directrons. The fission of quasi-static solitons in chiral nematics has predictable fission location, adjustable fission time, and controllable fission number, may acting as an excellent model system for studying general principles of soliton fission in nonlinear systems.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100312"},"PeriodicalIF":5.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000766/pdfft?md5=0835dc5084ea08fb8db20b19dfe3cc39&pid=1-s2.0-S2666542524000766-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two-dimensional crystallization of precise side-chain giant molecules with constant building blocks ratio","authors":"Fengfeng Feng ,&nbsp;Sai Zhang ,&nbsp;Weijie Wang ,&nbsp;Chengyang Hong ,&nbsp;Mei Zhang ,&nbsp;Fan Yang ,&nbsp;Yuxin Peng ,&nbsp;Fucheng Jia ,&nbsp;Hao Liu","doi":"10.1016/j.giant.2024.100304","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100304","url":null,"abstract":"<div><p>This paper describes the two-dimensional (2D) crystallization of side-chain giant molecules (SCGMs) having the fixed number ratio of two types of functionalized building blocks with 1:1. SCGMs are regarded to a certain degree as size-amplified versions of universal synthetic polymers that are prepared by precisely connecting molecular nanoparticles (MNPs) to polymer chains. Our previous experimental results have shown that individually changing the number ratio of one of the building blocks would significantly affect the structural parameters of molecular crystals, mainly the longitudinal thickness. Herein, we systematically discussed the 2D crystallization of two categories of POSS-based SCGMs with constant building blocks ratio. Solution self-assembly of such SCGMs resulted in well-defined 2D nanosheets with similar structural configurations, showing great tolerance in the number of building blocks. Subsequently, we proposed a “sandwiched-type” mode to illustrate the bilayer 2D supramolecular framework, in which crystalline blocks pack in head-to-head manner. In addition, sequence isomers provide an ideal platform to further verify that the thickness of 2D nanocrystal is linked with the tethering density determined by the number ratio of building blocks. We believe that this study could be a better complement to our previous work and then make us to be more in-depth understand the crystallization mechanism of SCGMs.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100304"},"PeriodicalIF":5.4,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000687/pdfft?md5=cf58dce1b4dcbddc1d179526680072bd&pid=1-s2.0-S2666542524000687-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solid polymer electrolytes regulated by ion-dipole interactions for high voltage lithium batteries","authors":"Tao Chen ,&nbsp;Yuncong Liu ,&nbsp;Zhekai Jin ,&nbsp;Lin Sun ,&nbsp;Zeyu Liu ,&nbsp;Hao Xu ,&nbsp;Zhiguo Zhao ,&nbsp;Chao Wang","doi":"10.1016/j.giant.2024.100310","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100310","url":null,"abstract":"<div><p>Solid polymer electrolytes (SPEs) with wide electrochemically stable window and high lithium-ion transference number (<em>t</em>_Li⁺) are a requirement for high energy density lithium batteries. Here, we construct a copolymer electrolyte (PDA) with ether-ester bifunctional groups that exhibits a low highest occupied molecular orbital (HOMO) energy level by in situ polymerization. Compared to the poly(1,3-dioxolane) (PDOL) pure polyether electrolyte, the weakening of the ion-dipole interaction between lithium salt and polymer in the PDA electrolyte promotes the formation of a “weak solvation” structure. Therefore, the electrolyte achieves high oxidative stability (4.6 V vs. Li⁺/ Li with a standard leakage current of 10 μA), high Li⁺ transference number (0.60), and importantly, derives a stable LiF-rich composition on high voltage cathode surface. Which ultimately enables stable cycling of Li||LiNi_0.5Co_0.2Mn_0.3O₂ (NCM523) batteries at a range of 3.0–4.3 V. This work provides a fundamental understanding of the design of antioxidant SPEs to achieve high energy density lithium batteries.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100310"},"PeriodicalIF":5.4,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000742/pdfft?md5=0b58813171e1903c1cecfea29f9abfdb&pid=1-s2.0-S2666542524000742-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic chemical recycling and upcycling of polyolefin plastics","authors":"Yingzi Tan ,&nbsp;Yidan Cheng ,&nbsp;Jiaming Xu ,&nbsp;Haobing Wang","doi":"10.1016/j.giant.2024.100307","DOIUrl":"10.1016/j.giant.2024.100307","url":null,"abstract":"<div><p>Polyolefins are the most produced and widely used polymeric materials. However, the chemically inert nature of polyolefins has led to severe environmental pollution, posing a threat to human sustenance and development. Managing and recycling polyolefin plastic waste is crucial for the transition from a linear to a sustainable circular economy. Catalytic chemical recycling includes traditional techniques like pyrolysis and photolysis, and innovative methods that introduce chemical cleavable bonds into the polyolefin chain for closed-loop recycling. Catalytic post-functionalization of post-consumer polyolefin materials is another strategy to tackle plastic waste, aiming to upgrade the materials’ utility and contribute to sustainability. Overall, developing catalytic methods for deconstructing and upcycling plastics is essential to encourage better reclamation practices and reduce the environmental impact of plastic waste.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100307"},"PeriodicalIF":5.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000717/pdfft?md5=52fe287ef78d69bc63a34adc9dcea005&pid=1-s2.0-S2666542524000717-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A universal pre-charging method for enhancing transient speed in Organic Electrochemical Transistors","authors":"Chao Zhao ,&nbsp;Björn Lüssem ,&nbsp;Sen Zhang ,&nbsp;Shijie Wang ,&nbsp;Wei Ma","doi":"10.1016/j.giant.2024.100306","DOIUrl":"10.1016/j.giant.2024.100306","url":null,"abstract":"<div><p>Organic electrochemical transistors (OECT) have shown great potential in diverse applications; however, in many OECTs, their slow transient response has thus far limited their practical use. One reason for the slow response is the complex interplay between lateral and vertical ion transport that has so far been poorly understood. In this work, we study the impact of lateral ion transport on OECT transient response, introduce a robust pre-charging method to manipulate the slow lateral ion transport. This approach leads to quicker ion redistribution and improved switching speeds. We show the general utility of pre-charging method in enhancing the switching speeds across various material systems, characterized by both low and high ion mobilities, and across different device architectures, achieving nearly symmetric speeds for both on-switching and off-switching. Moreover, we showcase the efficacy of the pre-charging method in enabling slow OECTs to capture rapid signals in real-world applications. Our findings present a groundbreaking strategy for enhancing the response times of OECT devices and deepening our understanding of the transient mechanisms in OECT device.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100306"},"PeriodicalIF":5.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000705/pdfft?md5=4c8e16e34f7cba490dc02e48aa620879&pid=1-s2.0-S2666542524000705-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141412499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phase Behavior of Sugar-based Block Co-oligomer Modulated by Molecular Chirality","authors":"Kai Chen ,&nbsp;Chaehun Lee ,&nbsp;Chun-Yu Chen ,&nbsp;Toshifumi Satoh ,&nbsp;Takuya Isono ,&nbsp;Hsin-Lung Chen","doi":"10.1016/j.giant.2024.100308","DOIUrl":"10.1016/j.giant.2024.100308","url":null,"abstract":"<div><p>Sugar-based block co-oligomer (BCO) consisting of saccharide block exhibits high segregation strength that overcomes the limitation of the traditional block copolymers for accessing the ordered nanostructures with ultrasmall feature size. This study explores the influence of molecular chirality on the self-assembly behavior of glucose-<em>block</em>-tocopherol (Glc-<em>b</em>-Toc) BCOs, wherein the Toc blocks were either pure in chirality or being a mixture of the stereoisomers. Both the chiral and racemic BCOs formed a hexagonal perforated layer (HPL) structure with an unusually small aspect ratio (<em>c/a)</em> of the unit cell, attributable to the propensity of the Glc block to enhance hydrogen bonding formation. As the temperature was increased, the dominance of hydrogen bonding interactions diminished, resulting in a gradual increase in the <em>c/a</em> ratio and eventually a transformation of the HPL structure to a double gyroid (DG) phase. The chirality of the Toc block enhanced the effective segregation strength of the BCO, leading to elevated order-order transition temperatures associated with the HPL-to-DG and DG-to-hexagonally packed cylinder (HEX) transitions. Within the HPL phase window, the chiral BCO exhibited significantly slower kinetics during thermally-induced structural reorganization in adjusting the <em>c/a</em> ratio, especially in the cooling process. Consequently, a pronounced hysteresis in the structural reorganization of the chiral BCO was observed. This phenomenon was ascribed to the chiral interaction between the Toc blocks, which limited the diffusion of the BCO molecules for the structural reorganization.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100308"},"PeriodicalIF":5.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000729/pdfft?md5=57b1910e7d0e584b5ba3d537f557af94&pid=1-s2.0-S2666542524000729-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141394526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiple Phase Structures and Enhanced Dielectric Properties of Side-Chain Liquid Crystalline Polymer Containing Unique Biaxial Mesogen with Large Dipole Moment","authors":"Zi-Fan Yang ,&nbsp;Le Zhou ,&nbsp;Wei Xia ,&nbsp;Lan-Ying Zhang ,&nbsp;Huai Yang ,&nbsp;Yang Shen ,&nbsp;Shuang Yang ,&nbsp;Er-Qiang Chen","doi":"10.1016/j.giant.2024.100305","DOIUrl":"10.1016/j.giant.2024.100305","url":null,"abstract":"<div><p>To achieve all-organic polymer with high dielectric performances, we have designed a novel side-chain liquid crystalline polymer (<strong>P7</strong>) with strong polar mesogen of (<em>Z</em>)-4-(2-cyano-2-phenylvinyl)benzonitrile (CSCN) attached to polycyclooctene backbone. The bis-cyano-substituted CSCN is board-shaped and exhibits a large dipole moment (8.54 D) which tilts ∼34.2° away from its molecular long axis. Consequently, CSCN shows unique dual molecular anisotropy: one from biaxial shape anisotropy and the other from polarization anisotropy. The complex phase behaviors of <strong>P7</strong> were investigated employing mainly the techniques of differential scanning calorimetry and X-ray diffraction. Four liquid crystal (LC) phases are identified as K0, K1, K2 and K3, which are SmA, highly-ordered biaxial SmA, B5-like and B7-like, respectively, with the thermal stability increased in sequence. The experimental results indicate that the different LC phases are arisen from the competition and balance between π-π stacking and dipole-dipole interaction. While the face-to-face π-π stacking is dominant in K0 and K1, optimizing the dipole-dipole interaction causes the CSCN mesogens within the smectic layer to tilt and rotate, resulting in K2 and K3. We further investigated the dielectric properties of <strong>P7</strong> films using polarization-electric field loops test. The dielectric constant (<em>ε</em>_r) of <strong>P7</strong> is found to be LC structure dependent, which is increased when the LC phase is varied from K0 to K3. With an average <em>ε</em>_r of 9.7 achieved in K3 and the low dielectric loss (tan <em>δ</em> = 0.001), <strong>P7</strong> film offers a promising material in advanced applications like energy storage and electronic devices.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100305"},"PeriodicalIF":5.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000699/pdfft?md5=a7cf83c0b344a6e5b4964f443b04a848&pid=1-s2.0-S2666542524000699-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141399268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular packing regulation of dopant-free hole transport polymers for efficient perovskite solar cells","authors":"Hang Liu ,&nbsp;Yuping Gao ,&nbsp;Yufei Xin ,&nbsp;Hao Zhang ,&nbsp;Yu Zou ,&nbsp;Xiyue Dong ,&nbsp;Yanhong Lu ,&nbsp;Qiang Fu ,&nbsp;Yongsheng Liu","doi":"10.1016/j.giant.2024.100302","DOIUrl":"10.1016/j.giant.2024.100302","url":null,"abstract":"<div><p>Spiro-OMeTAD is a primary hole transport material (HTM) employed in most state-of-the-art regular perovskite solar cells (PSCs). The essential reliance on hygroscopic ionic dopants to enhance the conductivity and mobility of Spiro-OMeTAD has dramatically compromised the stability of PSCs. Here, we demonstrated excellent photovoltaic performance of PSCs by developing two dopant-free polymers, namely L1 and L2, using thieno[3,2-b]thiophene as a building block. It is found that the <em>n</em>-hexyl-modified thiophene side chains endow the polymer L2 with favorable crystallinity, unique self-assembly behavior, and a preferable face-on stacking orientation. After the addition of a small amount (10 %) of PM6 to create a polymer alloy named LPA, the above properties were further improved, and the resulting film exhibited a distinct fibrous morphology, resulting in increased hole mobility and effective defect passivation. Consequently, PSCs employing LPA as a dopant-free HTM afforded a high efficiency of 23.81 %. Importantly, LPA-based PSCs exhibit significantly enhanced operational stability with a T80 lifetime of 1572 h at 55 °C. This work provides a crucial guideline for the design of dopant-free polymers, thereby advancing the practical application of PSCs.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100302"},"PeriodicalIF":5.4,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000663/pdfft?md5=505a419556e9814e27652f3b3fa9ca64&pid=1-s2.0-S2666542524000663-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141400302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vacuum-driven orientation of Nanostructured polystyrene-block-Poly(L-lactide) block copolymer thin films for Nanopatterning","authors":"Kang-Ping Liu,&nbsp;Aum Sagar Panda,&nbsp;Wen-Chi Huang,&nbsp;Rong-Ming Ho","doi":"10.1016/j.giant.2024.100303","DOIUrl":"10.1016/j.giant.2024.100303","url":null,"abstract":"<div><p>Herein, we demonstrate a simple approach to control the orientation of cylinder-forming nanostructures in polystyrene-<em>block</em>-poly(L-lactide) (PS-<em>b</em>-PLLA) BCP thin films through thermal annealing under a high-vacuum environment. Surface tension discrepancy between the constituent blocks is critical in controlling the aimed orientation of self-assembled nanostructures in block copolymer (BCP) thin films. For BCP self-assembly, temperature has been widely utilized as a thermodynamic state variable under ambient pressure conditions, whereas the use of high vacuum (low pressure) for thermal annealing is limited. It has been observed that temperature can alter the surface tension only marginally with increasing temperature for polymeric materials; as a result, the pressure dependence of surface tension for PS and PLLA was investigated. By increasing the vacuum degree during thermal annealing, the surface tension discrepancy between the PS and PLLA blocks can be reduced significantly. Accordingly, during thermal annealing under high vacuum degree, a neutral air polymer interface can be generated for the BCP thin films, resulting in the formation of perpendicular cylinders from the neutral surface of the thin film through BCP microphase separation.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100303"},"PeriodicalIF":7.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000675/pdfft?md5=16466fc27ba783b163fe868230e90d82&pid=1-s2.0-S2666542524000675-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141399478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polysaccharide-based materials as an eco-friendly alternative in biomedical, environmental, and food packaging","authors":"Zahra Behrooznia,&nbsp;Jhamak Nourmohammadi","doi":"10.1016/j.giant.2024.100301","DOIUrl":"https://doi.org/10.1016/j.giant.2024.100301","url":null,"abstract":"<div><p>The global community has encountered numerous challenges concerning environmental sustainability, encompassing issues like waste generation, depletion of natural resources, air pollution, and other threats to human well-being. Consequently, the pursuit of an eco-friendly environment has emerged as a critical concern in recent years. Polysaccharides, being natural biopolymers, have garnered significant attention owing to their distinctive properties that make them versatile for various applications. Numerous sustainable and environmentally friendly polysaccharides, such as chitosan, cellulose, starch, hyaluronic acid, alginate, and inulin, have been identified. This article highlights the characteristics of renewable polysaccharides, their categorization, and their potential to contribute to environmental sustainability. It introduces environmentally friendly extraction methods aimed at minimizing chemical pollution. Through the careful selection of diverse polysaccharides and the application of functionalization techniques, the article suggests the possibility of obtaining suitable superabsorbent hydrogels, appropriate nanocomposites, and effective scaffolds. The significance of utilizing polysaccharide-based materials is explored in detail, emphasizing their exceptional properties. Additionally, the article discusses the various applications of eco-friendly polysaccharides as sustainable polymers, including in agriculture, biomedicine, and food packaging.</p></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"19 ","pages":"Article 100301"},"PeriodicalIF":7.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666542524000651/pdfft?md5=390407726990f339865f62ae63bf666b&pid=1-s2.0-S2666542524000651-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141313905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}