材料科学最新文献

{"title":"Methods for accurate and rapid determination of purity of battery-grade silicon","authors":"Gwen F. Chimonides, Siddharth V. Patwardhan","doi":"10.1039/d5ta01306b","DOIUrl":"https://doi.org/10.1039/d5ta01306b","url":null,"abstract":"With high lithiation capacity, silicon is set to replace graphite as the active anode material in the next generation of lithium ion batteries. Si produced from various routes can contain proportions of oxide, both as a surface layer and in the bulk material. Accurate determination of Si purity is vital for anode formulation and performance testing. While there are many methods used for measuring the purity of Si, most of them are laborious, time-/resource-intensive or do not account for surface and bulk compositions. Here, we present two fast, simple and calibrated methods for the accurate determination of Si purity by using the thermogravimetric method or X-ray diffraction. The results show that by simply measuring pure Si and pure silica samples, a theoretical calibration curve can be developed for both methods, which shows excellent predictability of Si purity in real samples. Furthermore, we show that the thermal analysis was able to account for the dehydration of silica that was previously not noticed. With the increasing demand for Si for battery anodes and wider applications, this work represents a significant advance in rapidly and accurately quantifying Si purity.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"25 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341396","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":"MOF-on-MOF-derived core-shell structural Co/N co-doped porous carbon supported ultrafine Ru nanoparticles for boosting hydrogen evolution","authors":"Yutong Li, Shujun Qiu, Yongpeng Xia, Yongjin Zou, Fen Xu, Lixian Sun, Hailiang Chu","doi":"10.1016/j.jallcom.2025.181786","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181786","url":null,"abstract":"The development of efficient and cost-effective heterogeneous catalysts is crucial for promoting hydrogen production from ammonia borane (AB) hydrolysis. In this study, a MOF-on-MOF core-shell structure (ZIF-67@MOF-74) with a regular dodecahedral morphology was developed and then converted into a core-shell Co/N co-doped porous carbon (NC₁@NC₂) <em>via</em> a one-step carbonization process. Subsequently, ruthenium nanoparticles (Ru NPs) were uniformly dispersed on the heterogeneous interfaces of this core-shell structural carrier, creating a unique sandwich-like configuration, NC₁@Ru@NC₂. The interaction at the heterogeneous interface enhances the charge transfer and modulates the interfacial charge state, which not only firmly anchors the Ru NPs but also precisely optimizes their electronic structure. The core-shell design can further improve the dispersion and protection of Ru NPs, leading to a significant increase in the exposed metal site density (EMS). Therefore, the resulting catalyst demonstrates excellent catalytic activity and stability in AB hydrolysis, with an initial turnover frequency (TOF) of 408.9<!-- --> <!-- -->min^–1 at 25 °C and 70.9% activity retention after ten cycles. This innovative catalyst preparation approach achieves Ru-based catalysts with core-shell structure, which provides a promising strategy for developing high-performance catalysts for AB hydrolysis with enhanced cycling stability.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"50 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341412","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":"Strengthening characteristics of CoCrNi alloys with different stacking fault energies","authors":"S.Y. Peng, W. Gong, Y.Z. Tian, Z.J. Gu, Z.Y. Ni, S. Harjo, S. Lu, G.W. Qin, S. Li","doi":"10.1016/j.ijplas.2025.104401","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104401","url":null,"abstract":"Quantifying the contributions of various strengthening mechanisms is essential for manipulating these mechanisms and designing novel alloys. Although CoCrNi alloys demonstrate exceptional mechanical properties, their strengthening characteristics remain to be investigated. In this work, we conducted <em>in situ</em> neutron diffraction tensile tests and characterized deformation microstructures for CoCrNi alloys with different stacking fault energies (SFEs). The dislocation strengthening characteristics and the role of planar faults were systematically investigated. A reduction in SFE restricts cross slip, thereby increasing the dislocation multiplication rate while decreasing the dislocation strengthening coefficient <em>α</em>. Additionally, a lower SFE facilitates the simultaneous activation of dislocations and planar faults, with dislocation strengthening consistently playing a dominant role. This work quantifies reasonable <em>α</em> values for CoCrNi alloys and identifies cross slip as a critical factor potentially influencing <em>α</em> value in face-centered cubic (FCC) alloys.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"45 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341431","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":"Growth of various in whiskers on Cr-Al-B MAB phases formed during hot-dip aluminizing and subsequent thermal diffusion treatment of Fe-Cr-B cast steel","authors":"Xianman Zhang ,&nbsp;Ren Fu ,&nbsp;Baichuan Liu ,&nbsp;Zicheng Ling","doi":"10.1016/j.intermet.2025.108891","DOIUrl":"10.1016/j.intermet.2025.108891","url":null,"abstract":"<div><div>The synthesis of MAB phases and their solid solutions, which were candidates of precursor to prepare the MBenes with promising in energy storage and electrocatalytic applications, were generally complex. Compared with wide growth of whiskers on the MAX phases, the A-site element whiskers growth on the MAB phases were rare. Cr-Al-B MAB phase within the periodic layered structure (PLS) coating could be formed during hot-dip aluminizing (HDA) and subsequent thermal diffusion treatment (TDT) of Fe-Cr-B cast steel. Herein, the interfacial microstructures of the HDA of Fe-Cr-B cast steel in Al alloy melts containing Bi, In and Sn and subsequent TDT, especially the growth of whiskers on the whitened Cr-Al-B MAB phases, were systematically studied. The results demonstrated that, In and its combinations with Bi could partially replace the Al atoms in the Cr-Al-B MAB phase, resulting the both effects that the whitening of the Cr-Al-B MAB phases within the PLS and the spontaneous growth of whiskers with different compositions on them. However, the growth of Bi whisker could be neglected, compared with wide growth of various In whiskers. The shape of γ-In(Sn) rapid spontaneous growth in the vacuum chamber of SEM was complex and was not the prism structure of Sn whisker growth under the vacuum condition, which was related to the compositions of whiskers. This study would further enrich the theory of whisker growth on the MAB/MAX phases.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"185 ","pages":"Article 108891"},"PeriodicalIF":4.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338731","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":"Role of Manganese Oxide Nanosheets in Pyrolyzed Carbonaceous Supports for Water Oxidation","authors":"André Wark, Thorsten O. Schmidt, Richard W. Haid, Regina M. Kluge, Shinya Suzuki, Zyun Siroma, Egill Skúlason, Aliaksandr S. Bandarenka, Jun Maruyama","doi":"10.1021/acs.chemmater.5c00212","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00212","url":null,"abstract":"The oxygen-evolving complex in photosystem II, a manganese-oxide-based cluster, is nature’s solution for water oxidation, while most efficient artificial catalysts consist of costly noble-metal-based oxides. However, tackling the upcoming challenges of the climate crisis requires sustainable electrocatalysts based on affordable and efficient materials. Herein, we extensively probe carbonized iron phthalocyanine without and with deposited manganese-oxide nanosheets as model electrocatalysts mimicking the biological solution. We employed electrochemical and spectroscopic techniques, noise electrochemical scanning tunneling microscopy, and density functional theory calculations to understand their water-splitting performance holistically. Both compound materials show remarkable electrocatalytic activity, outperforming previously investigated systems based on earth-abundant elements. The origin of this enhanced performance is assigned to the metal centers and the edges at the substrate–nanosheet interface, providing the design guidelines to optimize further sustainable and affordable electrocatalysts for water oxidation.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"642 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340878","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":"Nickel Oxide/Cobalt Phthalocyanine as a Hole Transport Bilayer for Efficient and Stable Inverted Perovskite Solar Cells","authors":"Meiirkhan Beisembekov, Aitbek Aimukhanov, Serzhan Tazhibayev, Dosmukhammed Abeuov, Assylbek Zeinidenov","doi":"10.1002/smll.202501794","DOIUrl":"https://doi.org/10.1002/smll.202501794","url":null,"abstract":"This study demonstrates that the use of bilayer films based on nickel oxide (NiO<jats:sub>x</jats:sub>;) and cobalt phthalocyanine (CoPc) represents a promising hole transport layer (HTLs) for inverted perovskite solar cells (PSCs). NiO<jats:sub>x</jats:sub>; films are fabricated using the spin‐coating method from a sol–gel solution. Films (CoPc<jats:sub>evap</jats:sub>) and nanowires (CoPc<jats:sub>nws</jats:sub>) on the NiO<jats:sub>x</jats:sub>; surface are produced by thermal sputtering and physical gradient‐temperature vapor deposition. It is demonstrated that PSCs with a NiO<jats:sub>x</jats:sub>; layer exhibit a power conversion efficiency (PCE) of only 18,1%. The incorporation of a CoPc<jats:sub>evap</jats:sub> intermediate layer between NiO<jats:sub>x</jats:sub>; and the perovskite increases the PCE to 19.1%. The highest PCE, reaching 20.7%, is achieved with a bilayer HTLs based on NiO<jats:sub>x</jats:sub>;/CoPc<jats:sub>nws</jats:sub>. Analysis of the PSC impedance spectra shows that the CoPc<jats:sub>nws</jats:sub> intermediate layer reduces the HTLs resistance and increases the recombination resistance at the perovskite/HTLs interface, which extends the effective lifetime of charge carriers. The stability of NiO<jats:sub>x</jats:sub>;‐based PSCs is 48%, while PSCs with bilayer HTLs based on NiO<jats:sub>x</jats:sub>;/CoPc<jats:sub>nws</jats:sub> and NiO<jats:sub>x</jats:sub>;/CoPc<jats:sub>evap</jats:sub> exhibits higher stability of 71% and 90% over 600 hours. The results demonstrated that solar cells based on NiO<jats:sub>x</jats:sub>;/CoPc inhibit the perovskite degradation process and reduce charge recombination, thereby improving the performance and stability of the inverted PSCs.","PeriodicalId":228,"journal":{"name":"Small","volume":"15 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341037","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":"Surface Fluorination Shielding of Sulfide Solid Electrolytes for Enhanced Electrochemical Stability in All‐Solid‐State Batteries","authors":"Kyu Tae Kim, Jae‐Seung Kim, Ki Heon Baeck, Jong Seok Kim, Juhyoun Park, Seongil Bong, Young Joon Park, Yong Bae Song, Changhyun Park, Soon‐Jae Jung, Hyun‐Wook Lee, Kyulin Lee, Jay Hyok Song, Soonrewl Lee, Dong‐Hwa Seo, Yoon Seok Jung","doi":"10.1002/adma.202416816","DOIUrl":"https://doi.org/10.1002/adma.202416816","url":null,"abstract":"Despite their high Li<jats:sup>+</jats:sup> conductivity and deformability, sulfide solid electrolytes suffer from limited electrochemical stability, which prevents all‐solid‐state batteries (ASSBs) from reaching their full performance potential. Herein, a facile surface fluorination strategy is presented for Li<jats:sub>6</jats:sub>PS<jats:sub>5</jats:sub>Cl using XeF<jats:sub>2</jats:sub> as a solid‐state fluorinating agent, enabling a scalable dry process at moderate temperatures. An ≈37.3 nm‐thick uniform fluorinated layer is coated on an Li<jats:sub>6</jats:sub>PS<jats:sub>5</jats:sub>Cl surface, preserving 82.8% of the initial Li<jats:sup>+</jats:sup> conductivity (from 2.9 × 10⁻<jats:sup>3</jats:sup> only to 2.4 × 10⁻<jats:sup>3</jats:sup> S cm⁻¹ at 30 °C). The underlying fluorination mechanism, deduced through systematic investigations using X‐ray photoelectron spectroscopy, X‐ray Rietveld refinement, nuclear magnetic resonance, and density functional theory calculations, involves the formation of surface oxidative byproducts and F substitution within the lattice. When applied to LiNi<jats:sub>0.90</jats:sub>Co<jats:sub>0.05</jats:sub>Mn<jats:sub>0.05</jats:sub>O<jats:sub>2</jats:sub> electrodes in LiNi<jats:sub>0.90</jats:sub>Co<jats:sub>0.05</jats:sub>Mn<jats:sub>0.05</jats:sub>O<jats:sub>2</jats:sub>||(Li‐In) half cells at 30 °C, the fluorinated Li<jats:sub>6</jats:sub>PS<jats:sub>5</jats:sub>Cl substantially improves the electrochemical performance, delivering superior discharge capacities (e.g., 186.9 vs 173.6 mA h g<jats:sup>−1</jats:sup> at 0.33C), capacity retention, and safety characteristics compared to unmodified Li<jats:sub>6</jats:sub>PS<jats:sub>5</jats:sub>Cl. This enhancement is attributed to the formation of a robust fluorinated cathode electrolyte interphase that mitigates Li<jats:sub>6</jats:sub>PS<jats:sub>5</jats:sub>Cl oxidation. Finally, the stable operation of a pouch‐type LiNi<jats:sub>0.90</jats:sub>Co<jats:sub>0.05</jats:sub>Mn<jats:sub>0.05</jats:sub>O<jats:sub>2</jats:sub>||Li ASSB is demonstrated, highlighting the scalability of the proposed approach.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"91 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341069","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":"Nickel Hydroxide Catalyzed Bias‐free Photoelectrochemical NH3 Production via Nitrate Reduction","authors":"Wonjoo Jin, Hyunju Go, Juyeon Jeong, Jeonghwan Park, Ahmad Tayyebi, Je Min Yu, Seungchul Kim, Keunsu Choi, Ji‐Wook Jang, Kwanyong Seo","doi":"10.1002/adma.202506567","DOIUrl":"https://doi.org/10.1002/adma.202506567","url":null,"abstract":"The photoelectrochemical nitrate reduction reaction (PEC NO<jats:sub>3</jats:sub>RR) potentially converts nitrate, a major water pollutant, into NH<jats:sub>3</jats:sub>, which is an eco‐friendly, next‐generation energy source. However, achieving high efficiency in the PEC NO<jats:sub>3</jats:sub>RR has been challenging because of the need for high applied voltage and competition with the hydrogen evolution reaction (HER). In this study, a PEC NO<jats:sub>3</jats:sub>RR is successfully implemented that demonstrated a high NH<jats:sub>3</jats:sub> production rate of 2468 µg cm<jats:sup>−2</jats:sup> h<jats:sup>−1</jats:sup> (at −0.1 V vs RHE) using a <jats:italic>c‐</jats:italic>Si photocathode with Ni foil as the catalyst. Conducting the PEC NO<jats:sub>3</jats:sub>RR under alkaline conditions can lead to the self‐activation of the Ni surface with Ni(OH)<jats:sub>2</jats:sub>. Ni(OH)<jats:sub>2</jats:sub> can suppress the competitive HER and facilitate NO<jats:sub>3</jats:sub>RR, enhancing NH<jats:sub>3</jats:sub> production efficiency. Furthermore, a PEC NO<jats:sub>3</jats:sub>RR system is developed that operates without external voltage and achieved bias‐free record‐high solar to NH<jats:sub>3</jats:sub> conversion efficiency of 3.8% and an NH<jats:sub>3</jats:sub> production rate of 554 µg cm<jats:sup>−2</jats:sup> h<jats:sup>−1</jats:sup>.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"45 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341072","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":"Molecularly Engineered Quaternized κ‐Carrageenan: a Multifunctional Platform for Atmospheric Water Harvesting, Moisture‐Electricity Generation, and Self‐powered Wearable Sensors","authors":"Na Li, Xiao Yu, Da‐Peng Yang, Jintao He","doi":"10.1002/adfm.202502668","DOIUrl":"https://doi.org/10.1002/adfm.202502668","url":null,"abstract":"The pursuit of sustainability in the energy and environmental fields, coupled with the innovation in intelligent wearable sensing technologies, demands high‐performance materials with advanced functionalities. Molecular design has emerged as a cornerstone for optimizing material properties and achieving multifunctional integration. Natural carrageenan, a green substrate material known for its biocompatibility and renewability, faces challenges due to its limited processability and mechanical robustness. In this study, zwitterionic groups are introduced through molecular design to regulate intermolecular interactions, significantly lowering the sol–gel transition temperature, thus enabling superior processability and enhanced mechanical properties. This modification strategy enables efficient salt ion immobilization, endowing the material with outstanding atmospheric water harvesting (AWH) capabilities (2.1 g g<jats:sup>−</jats:sup>¹) and stable moisture‐electricity generation (MEG) performance (0.9 V of <jats:italic>V</jats:italic><jats:sub>oc</jats:sub>). Leveraging these advancements, a self‐powered smart sensor is developed, capable of real‐time monitoring of respiratory states, pressure sensing, and rapid response to noncontact actions. This work provides an integrated material design framework that facilitates innovation in green energy and personalized health monitoring technologies.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"18 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341079","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":"Flow-Through Nanozymes With Dynamic Modulated Cavity for Photoelectrocatalytic Selective Debromination","authors":"Qihao Xie, Ziwen An, Kuang Chen, Junzhuo Cai, Shaohan Xu, Ruochen Yang, Lina Li, Guohua Zhao","doi":"10.1002/smll.202504812","DOIUrl":"https://doi.org/10.1002/smll.202504812","url":null,"abstract":"Nanozymes represent a novel and promising technology for selective pollutant removal in wastewater treatment. Here, nanozymes with dynamic modulated active cavities on single-crystal Co₃O₄ (di-Co₃O₄) is developed. These nanozymes exhibit exceptional selectivity and catalytic efficiency in removing polybrominated diphenyl ethers (PBDEs), achieving 100% removal of a specific class of PBDEs, preferentially adsorbing less brominated PBDEs to effectively eliminate their toxicity. Experimental and theoretical calculations reveal that this enzyme-like specificity arises from Co─Br chemical bond interactions within the active cavities, accommodating bromine atoms with low spatial resistance. In-situ X-ray absorption spectroscopy is employed to monitor the photoelectrocatalytic process, demonstrating that bromine atoms occupy the active cavities and that divalent cobalt serves as the targeted adsorption site, facilitating efficient debromination at −0.6 V (versus SCE). The integration of flow cells enhances the removal efficiency of di-Co₃O₄ and synergistically improves their anti-interference capability against co-existing contaminants in complex systems. This work offers a novel design strategy for wastewater remediation and advances the dynamic tracking of photoelectrocatalytic processes.","PeriodicalId":228,"journal":{"name":"Small","volume":"25 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341247","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}