Materials Today最新文献

{"title":"Large scale and ultra-thin conductive two-dimensional metal films (<3.5 nm) for fast flexible electronics","authors":"Shuang Li ,&nbsp;Tongtong Yu ,&nbsp;Changhe Du ,&nbsp;Haoyu Deng ,&nbsp;Xinjian He ,&nbsp;Yongkang Zhao ,&nbsp;Yange Feng ,&nbsp;Liqiang Zhang ,&nbsp;Youqiang Wang ,&nbsp;Daoai Wang","doi":"10.1016/j.mattod.2025.03.007","DOIUrl":"10.1016/j.mattod.2025.03.007","url":null,"abstract":"<div><div>Pushing the thickness of two-dimensional (2D) metal films to below 10 nm means higher transparency and better flexibility, which will help improve the response sensitivity of flexible electronic devices based on 2D metals. However, lattice distortion and void cracks are facile occurred in the 2D metal film due to the island structure growth mechanism on the traditional solid substrates, which greatly weakens the transparency and conductivity of ultra-thin 2D metal films. Here, we innovatively proposed an air–liquid interface deposition (ALID) method to address this dilemma, in which ultrathin 2D metal films with continuous conductivity were deposited on liquid substrates. Thanks to the shallow injection and the Brownian motion of the liquid substrate, 2D metal (Au, Ag, Cu, Bi, Pt, etc.) films with dimensions up to φ 90 mm × 3.5 nm were obtained through the above method with continuous conductivity in only 5 s. More importantly, compared with the metal film prepared by traditional air–solid interface deposition method, the metal film prepared through ALID has lower surface roughness (0.207 nm), better transparency (85 %), and stronger wear resistance since metal atoms can be arranged almost freely on the isotropic liquid surface. Furthermore, the fabricated resistance sensor based on these 2D metal films can realize flexible sensing such as bending, hitting and stretching motions with ultrafast response time (t = 60 ms) and robust response sensitivity (△R/R₀ = 800 %). On the one hand, it provides a new solution for the large scale preparation of ultra-thin continuous conductive films, and on the other hand, it enriches the growth mechanism of thin films on the liquid surface.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 52-62"},"PeriodicalIF":21.1,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Superior delamination resistant two-dimensional lamellar materials","authors":"Kaiwen Li ,&nbsp;Lidan Wang ,&nbsp;Feifan Chen ,&nbsp;Jiahao Lu ,&nbsp;Rui Guo ,&nbsp;Yue Gao ,&nbsp;Shiyu Luo ,&nbsp;Xin Ming ,&nbsp;Yue Lin ,&nbsp;Zhen Xu ,&nbsp;Manyi Huang ,&nbsp;Chao Wang ,&nbsp;Yingjun Liu ,&nbsp;Chao Gao","doi":"10.1016/j.mattod.2025.02.011","DOIUrl":"10.1016/j.mattod.2025.02.011","url":null,"abstract":"<div><div>Numerous 2D sheets are generally exfoliated and prevalent to be assembled into macroscopic lamellar materials. However, these highly expected materials still inherit the easy exfoliation of 2D sheets and exhibit severe delamination failure problems, despite their outstanding in-plane performances and functions. Here, we find the increasing stack order of 2D sheets inversely aggravates delamination and uncover the hidden interlayer dissipation as the dominating mechanism. We propose a strong interlayer entanglement toughening strategy to greatly improve the delamination strength of graphene oxide papers by 268%, achieving a superior delamination resistance of benchmark natural nacres. The interlayer disentanglement offers extra dissipative sites to alleviate the stress concentration of the crack tip and suppress the crack propagation. This work provides an effective structural design strategy to resolve the intrinsic delamination problem of 2D lamellar materials, paving the way to realistic applications as structural materials and durable coatings.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"85 ","pages":"Pages 39-48"},"PeriodicalIF":21.1,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temperature-responsive multistable kirigami with reprogrammable multi-shape memory","authors":"Hang Yang ,&nbsp;Wei-Jing Wang ,&nbsp;Omar Wyman ,&nbsp;Wei Zhai ,&nbsp;Li Ma ,&nbsp;Damiano Pasini","doi":"10.1016/j.mattod.2025.03.002","DOIUrl":"10.1016/j.mattod.2025.03.002","url":null,"abstract":"<div><div>Shape memory materials retain temporary shapes without external constraints and return to their permanent shape when exposed to an external trigger, e.g., light, humidity, or heat. Current shape memory materials can maintain a modest number of shapes, deliver limited modes of deformation with undesired spring-back, suffer slow response speed, and typically require laborious thermomechanical programming and tuning their glass transition temperatures through alteration in chemical composition. In this work, we demonstrate the attainment of a robust and simplified multi-shape memory effect in a class of 3D-printed kirigami that merely relies on two off-the-shelf polymers with distinct temperature-dependent elastic moduli. By programming the kirigami multistability in the low-temperature regime, our multi-shape memory metamaterials can be reconfigured in-situ to retain a geometrical rich and diverse set of stable temporary shapes in planar and spatial kirigami tessellations before reverting to their permanent shape through a heat-induced stiffness reversal. Through mechanics theory, numerical simulations, and thermomechanical experiments, we first investigate the physical mechanism that marks stability transitions and deformation modes, and then leverage the insights to demonstrate their multifunctionality in a diverse range of applications, including temperature sensors, actuators, and robotic grippers. Unreliant on the chemistry tuning of material composition, their hallmarks include the delivery of multiple deformation modes and combination thereof, rich and robust multi-shape memory effect with no spring-back, reprogrammable shape changes, stiffness switch, and heat-induced swift shape recovery. Our strategy is versatile, can be adapted to other 3D printable materials and physicochemical stimuli, e.g., light, moisture, and solute, and can be up- and down-scaled, paving the way for a wide range of multifunctional applications, including adaptive morphing devices, self-powered sensors and actuators, and reconfigurable soft robots.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 10-27"},"PeriodicalIF":21.1,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Continuous production of Cl-terminated MXenes by bubbling chemical vapor growth in molten salt","authors":"Jikai Zhang ,&nbsp;Yi Tao ,&nbsp;Yuxuan Ye ,&nbsp;Haiyang Wang ,&nbsp;Xinping Wu ,&nbsp;Zicheng Luo ,&nbsp;Yu Shi ,&nbsp;Qi Zhao ,&nbsp;Zongju Cheng ,&nbsp;Yu Guo ,&nbsp;Bin Li ,&nbsp;Bo Mai ,&nbsp;Qinyou An ,&nbsp;Xiansheng Zhang ,&nbsp;Zhiguo Du ,&nbsp;Shubin Yang","doi":"10.1016/j.mattod.2025.03.001","DOIUrl":"10.1016/j.mattod.2025.03.001","url":null,"abstract":"<div><div>Although 2D transition-metal carbides (MXenes) are usually synthesized by selective etching and chemical vapor deposition approaches, they are limited by the slow reaction kinetics, resulting in their continuous production challenging. Here, we demonstrate a bubbling chemical vapor growth (BCVG) method to continuously produce Cl-terminated MXenes by the reaction of CH₄ and TiCl₄ chemical bubbles with titanium powder in a molten salt. In the molten reaction system, titanium powder would effectively react with TiCl₄ to form highly active [TiCl₆]<em>^y</em>^– with low Ti<img>Cl bond dissociation energies. The multivalent [TiCl₆]<em>^y</em>^– could efficiently incorporate the carbon species from CH₄ to form [Ti₆CCl₁₈] clusters on the surface of bubbles in a low energy barrier, efficiently promoting the reaction kinetics. Subsequently, Cl-terminated MXenes were produced based on the following condensation reaction of [Ti₆CCl₁₈] clusters. The resultant MXene (Ti₂CCl<em>_x</em>) exhibits an expanded structure with strong interfacial polarization between its basal planes and the polymer matrix, delivering a good electromagnetic wave absorption performance with a minimum reflection loss (RL_min) value of –52.2 dB at a thin thickness of 2.84 mm.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 1-9"},"PeriodicalIF":21.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrocatalytic seawater splitting from direct electrolysis to hybrid electrolysis: Challenges and opportunities","authors":"Jin−Tao Ren,&nbsp;Lei Chen,&nbsp;Zhong−Yong Yuan","doi":"10.1016/j.mattod.2025.03.003","DOIUrl":"10.1016/j.mattod.2025.03.003","url":null,"abstract":"<div><div>The electrochemical splitting of seawater for hydrogen production presents a promising avenue toward sustainable energy goals; nevertheless, its realization confronts formidable challenges, including adversarial chlorine-related processes, sluggish kinetics, limited catalyst durability, and the interference of impurities and precipitates. This comprehensive review commences with an overview of recent noteworthy advancements and rational strategies in catalyst design specifically tailored for seawater electrolysis. Addressing the unique challenges at the anode and cathode during direct seawater electrolysis, we delve into pioneering methodologies for fabricating efficacious anodic and cathodic catalysts. These approaches encompass catalyst design principles, selective active sites, and the implementation of Cl⁻ blocking layers. Furthermore, a detailed exploration of substitutional anodic oxidation reactions involving various small molecules, coupled with cathodic hydrogen evolution, is provided as a means to achieve hybrid seawater electrolysis. This dual-functional approach ensures not only secure and energy-efficient seawater splitting but also paves the way for the simultaneous generation of value-added chemicals and the amelioration of environmental contaminants. Additionally, advanced reactor assembly concepts tailored for seawater electrolysis are introduced to enhance overall system efficiency. In conclusion, we offer distinctive insights poised to guide future research endeavors in the domain of seawater electrolysis systems.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 282-316"},"PeriodicalIF":21.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anomalous properties of spark plasma sintered boron nitride solids","authors":"Abhijit Biswas ,&nbsp;Peter Serles ,&nbsp;Gustavo A. Alvarez ,&nbsp;Jesse Schimpf ,&nbsp;Michel Hache ,&nbsp;Jonathan Kong ,&nbsp;Pedro Guerra Demingos ,&nbsp;Bo Yuan ,&nbsp;Tymofii S. Pieshkov ,&nbsp;Chenxi Li ,&nbsp;Anand B. Puthirath ,&nbsp;Bin Gao ,&nbsp;Tia Gray ,&nbsp;Xiang Zhang ,&nbsp;Jishnu Murukeshan ,&nbsp;Robert Vajtai ,&nbsp;Pengcheng Dai ,&nbsp;Chandra Veer Singh ,&nbsp;Jane Howe ,&nbsp;Yu Zou ,&nbsp;Pulickel M. Ajayan","doi":"10.1016/j.mattod.2025.03.006","DOIUrl":"10.1016/j.mattod.2025.03.006","url":null,"abstract":"<div><div>Hexagonal boron nitride (h-BN) is a brittle ceramic with a layered structure, however, recent experiments have suggested that inter-layer structural engineering could be key to new structural and functional properties. Here we report the scalable bulk synthesis of high-density crystalline h-BN solids, by using high-temperature spark plasma sintering (SPS) of h-BN powders, which show high values of mechanical strength, ductility, dielectric constant, thermal conductivity, and exceptional neutron radiation shielding capability. Through exhaustive characterizations we reveal that SPS induces non-basal plane crystallinity, twisting of layers, and facilitates inter-grain fusion with a high degree of in-plane alignment across macroscale dimensions, resulting in near-theoretical density and improved properties. Our findings highlight the importance of material design, via new approaches such as layer twisting and interlayer interconnections, to create novel ceramics with properties that could go beyond their intrinsic limits.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"86 ","pages":"Pages 42-51"},"PeriodicalIF":21.1,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strain engineering in gradient-structured metallic glasses for excellent overall water splitting","authors":"Chaoqun Pei ,&nbsp;Shuangqin Chen ,&nbsp;Jiuyuan Xie ,&nbsp;Shidong Feng ,&nbsp;Mingyuan Yu ,&nbsp;Cheng Zhan ,&nbsp;Yuyang Qian ,&nbsp;Guannan Yang ,&nbsp;Yuxuan Chen ,&nbsp;Si Lan ,&nbsp;Erjun Kan ,&nbsp;Di Wang ,&nbsp;Xiaoke Mu ,&nbsp;Horst Hahn ,&nbsp;Baoan Sun ,&nbsp;Gerhard Wilde ,&nbsp;Tao Feng","doi":"10.1016/j.mattod.2025.02.024","DOIUrl":"10.1016/j.mattod.2025.02.024","url":null,"abstract":"<div><div>Metallic glasses (MGs) represent cutting-edge electrocatalysts due to their distinctive disordered atomic structure. However, enhancing the activity of MG catalysts poses a significant challenge. In this study, we present an innovative gradient structure design aimed at introducing strain effects into non-noble Ni₄₀Fe₄₀P₂₀ MG wires, resulting in a substantial enhancement of their water electrolysis efficiency. Our novel design strategy has been successfully implemented in various composition MG wires fabricated using the Taylor–Ulitovsky (TU) method. The gradient-structured metallic glasses (GS-MGs) enable the attainment of large and consistent surface tensile strain, which in turn modifies the electronic structure, leading to a remarkable improvement in catalytic performance. Furthermore, employing free-standing Ni₄₀Fe₄₀P₂₀ GS-MGs with a fully three-dimensional nanoporous structure as both cathode and anode in the overall water-splitting cell has achieved breakthrough performance in alkaline media. Notably, the cell exhibits significantly reduced potentials of only 1.378 V and 1.682 V at current densities of 10 mA cm⁻² and 1000 mA cm⁻², respectively, surpassing precious metal catalysts and previously reported advanced electrocatalysts. This study demonstrates that strain engineering induced by gradient structures is a universal and effective strategy for enhancing the catalytic performance of MGs. It introduces a new paradigm for the development of high-efficiency water splitting applications.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"85 ","pages":"Pages 100-111"},"PeriodicalIF":21.1,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal diode-like metafabric with tunable asymmetric structure for continuous personal cooling","authors":"Chengfeng Ding ,&nbsp;Yikai Jin ,&nbsp;Yanyan Lin ,&nbsp;Ningbo Cheng ,&nbsp;Na Meng ,&nbsp;Xianfeng Wang ,&nbsp;Xia Yin ,&nbsp;Jianyong Yu ,&nbsp;Bin Ding","doi":"10.1016/j.mattod.2025.02.020","DOIUrl":"10.1016/j.mattod.2025.02.020","url":null,"abstract":"<div><div>Personal cooling textiles that can ensure human health and alleviate energy crises have been fabricated from various mechanisms including radiation, evaporation, and convection. However, there exists a significant challenge in achieving continuous cooling solely through thermal conduction especially in a changing environment. We report a novel strategy to create a thermal diode-like metafabric (TDM) with a tunable asymmetric structure that enables unidirectional thermal conductivity. The premise of the design is that the TDM dissipates body heat via the dense layer and insulates against environmental heat with the fluffy layer, making the heat dissipation function like a “thermal diode”. The resulting TDM can achieve a continuous cooling of 3.5 °C compared to cotton fabric, solely through thermal conduction. Additionally, it also integrates properties of ultrahigh air and moisture permeability, shape memory, and mechanical durability. The successful synthesis of such fascinating material may offer new perspectives on the design and advancement of thermal management materials in various fields.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"85 ","pages":"Pages 91-99"},"PeriodicalIF":21.1,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chelating diamine surface modifier enhances performance and stability of lead halide perovskite solar cells","authors":"Susana Ramos-Terrón ,&nbsp;Luis Camacho ,&nbsp;Juan-Pablo Correa-Baena ,&nbsp;Carlo A.R. Perini ,&nbsp;Gustavo de Miguel","doi":"10.1016/j.mattod.2025.02.015","DOIUrl":"10.1016/j.mattod.2025.02.015","url":null,"abstract":"<div><div>Mono- or di-ammonium cations are commonly used to enhance the performance and stability of perovskite solar cells (PSCs) via surface defect passivation. However, their effectiveness is still limited by the little understanding of the structure–property-performance relationship of the capping layer/3D perovskite stack. In this work, two diamine spacers with similar chemical composition but different molecular geometry are tested: 4,4′-Dithiodianiline (<strong>2S</strong>) and 4,4′-Ethylenedianiline (<strong>ET</strong>). In <strong>2S</strong>, the two amine groups are spatially close owing to a torsion in the backbone of the molecule. Instead, in <strong>ET</strong> the amine groups are at the maximum distance. The torsion allows <strong>2S</strong> to bind to neighboring vacancy sites at the surface of the perovskite lattice, enhancing its passivation capabilities with respect to <strong>ET</strong>. The <strong>2S</strong> spacer forms a 2D metal halide phase at the perovskite surface, which offers better charge extraction properties than the 1D phase induced by <strong>ET</strong> spacer. In solar cells incorporating <strong>2S</strong>, these properties result in a power conversion efficiency (PCE) of 20.72 %, improved from the 18.36 % PCE of the reference and almost no loss of efficiency after 1000 h under constant illumination in inert atmosphere.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"85 ","pages":"Pages 60-68"},"PeriodicalIF":21.1,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The rise of lithium bis(fluorosulfonyl) imide: An efficient alternative to LiPF6 and functional additive in electrolytes","authors":"Liqiong Tong ,&nbsp;Jingqin Ji ,&nbsp;Yanlan Zhao ,&nbsp;Li Wang ,&nbsp;Xiangming He","doi":"10.1016/j.mattod.2025.02.018","DOIUrl":"10.1016/j.mattod.2025.02.018","url":null,"abstract":"<div><div>Lithium bis (fluorosulfonyl) imide (LiFSI), as a potential replacement for lithium hexafluorophosphate (LiPF₆) and as an electrolyte additive for lithium-ion batteries, is attracting attention due to its advantages in low-temperature performance, multiplication capacity and cycle life. LiFSI exhibits superior performance compared to LiPF₆, especially as an additive in high-power applications. However, it still faces challenges such as collector corrosion and complex production processes. Researchers are actively exploring solutions to face these challenges, primarily by optimizing electrolyte formulations to enhance LiFSI performance, improving synthesis processes to reduce costs and increase yields, and scaling up production to meet market demand. Despite the challenges, research and applications of LiFSI are increasing, and its performance, cost-effectiveness, and environmental benefits make it a strong contender for future battery technology. Continuous research and development will be the key to determining the scope of its integration and improvement in the battery industry.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"85 ","pages":"Pages 282-303"},"PeriodicalIF":21.1,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}