Materials Science and Engineering: B最新文献

{"title":"Unveiling the photocatalytic activities of morphology-controlled ZrO2, BaO, and Y2O3 nanoparticles using Eucalyptus leaf extract","authors":"Pushpa Mani ,&nbsp;Mageswari Subramanian ,&nbsp;Panneerselvam Arputham","doi":"10.1016/j.mseb.2025.118410","DOIUrl":"10.1016/j.mseb.2025.118410","url":null,"abstract":"<div><div>This study investigates the synthesis of transition metal oxide nanoparticles, including Zirconium oxide (ZrO₂), Barium oxide (BaO), and Yttrium oxide (Y₂O₃), using <em>Eucalyptus</em> leaf extract as a green reducing agent through a sonication-assisted approach. The nanoparticles were thoroughly characterized for their crystalline structure, functional groups, morphology, and elemental composition. The results confirmed the successful formation of distinct metal oxide bonds and unique morphological features: ZrO₂ exhibited semi-spherical shapes, BaO showed monodisperse spherical morphology, and Y₂O₃ displayed a flaky non-spherical structure. The photocatalytic activity of the nanoparticles was evaluated for the degradation of Brilliant Blue (BB) and Rhodamine B (RhB) dyes. Among the samples, BaO nanoparticles achieved the highest degradation efficiency, reaching up to 99 % for both dyes under natural sunlight. Antibacterial studies revealed significant activity, with BaO exhibiting 18 mm and 21 mm inhibition zones against <em>E. coli</em> and <em>S. aureus</em>. Real-time turbidimetric growth inhibition tests further demonstrated BaO’s superior performance, with growth inhibition rates of 81.4 % and 88.6 % against <em>E. coli</em> and <em>S. aureus</em>. Additionally, antioxidant activity assessed through the DPPH assay indicated that BaO nanoparticles exhibited the highest radical scavenging ability, surpassing ZrO₂ and Y₂O₃. These findings underscore the multifunctional capabilities of BaO nanoparticles, particularly in environmental remediation applications such as dye degradation, antibacterial treatments, and antioxidant activity, highlighting their potential for sustainable and eco-friendly solutions to pressing biological and ecological challenges.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118410"},"PeriodicalIF":3.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid photocatalytic degradation of organic dyes using Co2GeO4/ mesoporous graphitic carbon nitride (g-C3N4) heterojunction","authors":"V.K. Amritha ,&nbsp;Gopika Mukundan ,&nbsp;Sushmee Badhulika","doi":"10.1016/j.mseb.2025.118426","DOIUrl":"10.1016/j.mseb.2025.118426","url":null,"abstract":"<div><div>Azo dyes, such as MB and CV, are widely used in the textile industry. Their discharge into the environment causes poisonous by-products, such as those that harm aquatic life and pose health risks to human beings. The focus of this research is on a new heterojunction-based photocatalyst made up of Co₂GeO₄ and mesoporous graphitic carbon nitride (m-g-C₃N₄) fabricated via a low-cost hydrothermal method for rapid degradation of Methylene blue (MB) and crystal violet (CV). The Co₂GeO₄/m-g-C₃N₄ heterojunction shows a type II heterojunction with a bandgap of 2.39 eV, making it responsive to visible light. The optimized heterojunction photocatalyst significantly enhances photocatalytic activity by facilitating efficient charge separation and transfer, extending spectral response, and improving electron-hole pair separation. The reaction degrades 95.5 % of Methylene Blue and 95 % of Crystal violet dyes. Reusability tests were conducted, and the material exhibits good stability up to four cycles of reusability. The research establishes Co₂GeO₄/m-g-C₃N₄ heterojunction photocatalyst as an effective option for sustainable wastewater treatment.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118426"},"PeriodicalIF":3.9,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of sandblasting treatment on the microstructure and mechanical properties of Ti-6Al-4V porous radial gradient scaffolds formed by SLM","authors":"Zixi Zhang ,&nbsp;Bibo Yao ,&nbsp;Zhenhua Li ,&nbsp;Jiping Zhu ,&nbsp;Yongchang Qi ,&nbsp;Tao Wen ,&nbsp;Zhanliang Liu ,&nbsp;Dingbang Wang ,&nbsp;Jiajin Yu","doi":"10.1016/j.mseb.2025.118409","DOIUrl":"10.1016/j.mseb.2025.118409","url":null,"abstract":"<div><div>The radial gradient porous structure conforms to the structural characteristics of natural bone, and its mechanical properties can be improved by adjusting the porosity of the inner and outer layers. However, the high surface roughness of the porous structure formed by selective laser melting (SLM) is source the generation of cracks, and harmful for the mechanical properties. In this work, Gyroid unit cell was employed to design six radial gradient porous structures with porosities ranging from 50 % to 80 %, along with one uniform porous structure. Ti-6Al4V porous structure was prepared by SLM and then sandblasted. The effects of sandblasting on microstructure, compressive properties, deformation behavior and energy absorption were studied. The results show that there are many unmelted powder and layered steps, as well as micro-spherical pores in the as-built porous structure. After sandblasting treatment, the powder particles on the strut surface of the porous structure and the surface defects decrease, contributing to improve the forming accuracy. Additionally, the microstructure becomes finer and denser. The stress–strain curve of porous structure is composed of elastic, plateau and densification stages. The elastic modulus, yield strength and energy absorption of the porous as-built structure are 2.21–7.80 GPa, 54.05–320.40 MPa, and 20.76–94.13 MJ/m³, respectively. After sandblasting, these parameters increase to 2.97–8.58 GPa, 61.71–334.92 MPa, and 20.99–109.69 MJ/m³, respectively. The porous structures both before and after sandblasting exhibited shear failure characteristics. However, the fracture surfaces of the sandblasted structures demonstrated mixed ductile and brittle features, whereas the original structures showed relatively more brittle fracture behavior. Furthermore, the Gibson-Ashby prediction model demonstrates that compressive mechanical characteristics increase with increasing relative density. As a result, sandblasting can increase the strength and toughness of the radial gradient porous structure, making it better suited for bone implant applications.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118409"},"PeriodicalIF":3.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monoclinic Co-doped BiVO4 nanosphere for high performance supercapacitor","authors":"Robert Dominic Reegan Rajarethinam ,&nbsp;Nagapandiselvi Perumal ,&nbsp;Senthil Pandian Muthu ,&nbsp;Jeffrey Joseph John Jeya Kamaraj","doi":"10.1016/j.mseb.2025.118397","DOIUrl":"10.1016/j.mseb.2025.118397","url":null,"abstract":"<div><div>As fossil fuel resources decline, the world relies more on efficient, sustainable energy storage devices, where supercapacitors stand out among electrochemical energy storage devices. Supercapacitors are characterised by their ability to charge and discharge at ultrafast rates, making them highly suitable for applications that demand quick energy delivery. A facile one step hydrothermal method was employed to synthesis Co-BiVO₄ nanoparticles. The designed Co-BiVO₄ demonstrated enhanced specific capacitance, attributed to the enhanced conductivity and optimized nanostructures. The observed decrease in R_ct value from 3.3 Ω in pristine BiVO₄ to 2.2 Ω upon Co-BiVO₄ demonstrates improved electrical conductivity and faster charge transfer. This enhancement is directly associated with the increased specific capacitance of the Co-doped BiVO₄ electrode. The electrode achieved a high specific capacitance of 424.8 Fg⁻¹ at a current density of 1 Ag⁻¹, retaining 88.75 % capacitance after 5,000 cycles at 10 Ag⁻¹ in a three-electrode system. Asymmetric supercapacitors were fabricated using carbon as the negative electrode and Co-BiVO₄ as the positive electrode. The ASC delivered an Energy density of 56.67 Whkg⁻¹ at a power density of 807 Wkg⁻¹ with a retention rate of roughly 81.15 % after 10,000 cycles at 10 Ag⁻¹.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118397"},"PeriodicalIF":3.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing dielectric properties of epoxy-based nanocomposites reinforced with yttrium oxide (Y2O3) nanoparticles for high-voltage insulation applications","authors":"Ammar Alsoud ,&nbsp;Adel A. Shaheen ,&nbsp;Pavel Tofel ,&nbsp;Alexandr Knápek ,&nbsp;Dinara Sobola","doi":"10.1016/j.mseb.2025.118407","DOIUrl":"10.1016/j.mseb.2025.118407","url":null,"abstract":"<div><div>This study investigates the enhancement of dielectric properties in epoxy resin-based nanocomposites by incorporating yttrium oxide nanoparticles (<span><math><mrow><msub><mi>Y</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></mrow></math></span>) for high-voltage insulation applications. Nanocomposites with <span><math><mrow><msub><mi>Y</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></mrow></math></span> concentrations of 3, 6, 9, 12, and 15 wt % were fabricated and characterized. Dielectric relaxation spectroscopy (10⁻²–10⁶ Hz) was used to evaluate key parameters—including permittivity, conductivity, activation energy, and conduction mechanisms—across temperatures ranging from 30 to 170 °C. Structural and morphological analyses via scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) and X-ray diffraction (XRD) confirmed uniform nanoparticle dispersion in the epoxy matrix, with minor agglomeration observed at higher filler loadings. The 6 wt % nanocomposite exhibited optimal performance, demonstrating the lowest permittivity, conductivity, and activation energy (9.5 meV). In contrast, increasing the <span><math><mrow><msub><mi>Y</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></mrow></math></span> concentration to 15 wt % raised the activation energy to 11 meV and increased permittivity. Conductivity showed a temperature-dependent rise, consistent with thermal activation. A transition in the conduction mechanism from quantum mechanical tunneling to correlated barrier hopping (CBH) occurred at 110 °C, accompanied by a decrease in permittivity and a shift in crossover frequency (toward lower frequencies at reduced temperatures and higher frequencies at elevated temperatures). The β-relaxation mode remained dominant across the entire temperature range, highlighting the potential of epoxy/<span><math><mrow><msub><mi>Y</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></mrow></math></span> nanocomposites as advanced dielectric materials for high-voltage systems. These findings underscore a promising balance between thermal stability and dielectric efficiency.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118407"},"PeriodicalIF":3.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 utilization of vanadium from spent catalysts for preparation of layered K0.51V2O5 as aqueous-based potassium ion cathodes","authors":"Junyi Wu ,&nbsp;Xinyue Ouyang ,&nbsp;Weiwei Wang ,&nbsp;Rui Huang ,&nbsp;Jun Yan ,&nbsp;Xing Ou ,&nbsp;Dongyang Li ,&nbsp;Wenchao Zhang ,&nbsp;Fangli Zhang","doi":"10.1016/j.mseb.2025.118392","DOIUrl":"10.1016/j.mseb.2025.118392","url":null,"abstract":"<div><div>The accumulation of spent selective catalytic reduction (SCR) catalysts has resulted in a huge loss of metal resources. Among them, regenerating vanadium (V) from spent SCR catalysts for the preparation of energy storage materials represent a promising direction. Herein, we proposed a wet method to recover V and further synthesized layered materials (K_0.51V₂O₅) as cathodes for aqueous-based potassium ion batteries. To help better improve the electrochemical performance, (potassium chloride (KCl) and potassium trifluoromethanesulfonate (KOTf)) were employed as the electrolytes. As results, the cells could deliver a high specific capacity of 109.7 mAh g⁻¹ in 3 M KOTf electrolyte, which is far beyond than those in KCl electrolytes. Furthermore, the molecular dynamic simulations and spectroscopic analysis indicated that strong cation anion interactions could be observed in concentrated KOTf electrolytes, which could weaken water molecule hydrogen bonds and contribute to the formation of salt derived solid electrolyte interphase.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118392"},"PeriodicalIF":3.9,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 effect of mild oxidation induced by heat treatment on the pseudocapacitance performance of Ti3C2Tx MXene","authors":"Jiaheng Xu ,&nbsp;Yiwei Lu ,&nbsp;Hongying Zhao ,&nbsp;Lin Li ,&nbsp;Hailong Shen ,&nbsp;Yi Fan ,&nbsp;Xianqing Liang ,&nbsp;Wenzheng Zhou ,&nbsp;Zhiqiang Lan ,&nbsp;Haifu Huang","doi":"10.1016/j.mseb.2025.118403","DOIUrl":"10.1016/j.mseb.2025.118403","url":null,"abstract":"<div><div>MXene, as an emerging two-dimensional material, holds great potential in the field of supercapacitors due to its graphene-like layered structure and high conductivity. However, MXene also faces a series of challenges; including oxidation, self-aggregation, and re-stacking issues caused by van der Waals and hydrogen bond interactions within its two-dimensional layers. These challenges limit the exposure of surface-active sites, slow down electron transfer rates, and subsequently affect its electrochemical performance as an electrode material for supercapacitors. To overcome these issues and further optimize the electrochemical performance of MXene, this study focuses on exploring the effects of the low-temperature heat treatment process on the interlayer spacing, surface functional groups and electrochemical energy storage performance of Ti₃C₂T_<em>x</em> MXene. The results reveal that Ti₃C₂T<em>_x</em> MXene annealed at 300 °C for 3 h exhibits excellent pseudocapacitance performance. At a scan rate of 2 mV s⁻¹, its specific capacitance reaches up to 394.1 F g⁻¹, and the capacitance retention rate remains at a high level of 105.1 % after 9000 cycles. This work shows that the heat treatment and appropriate oxidation of MXene at low temperatures can promote the charge storage capacity of MXene, thereby fully unlocking their potential in supercapacitors.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118403"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 of mace-like CuO@MnO2 composite nanorods with superior fenton-like catalytic activity","authors":"Zhen-bin Pang ,&nbsp;Ying Wang ,&nbsp;Bai-Yu Feng ,&nbsp;Yu-Yao Zou ,&nbsp;Guo-Zhi Han","doi":"10.1016/j.mseb.2025.118411","DOIUrl":"10.1016/j.mseb.2025.118411","url":null,"abstract":"<div><div>Using MnOOH nanorods as template, dopamine (DA) as a linker, and copper acetate as copper source, a novel kind of CuO@PDA@MnOOH composite nanorods was prepared by a facile one-pot hydrothermal method. After the removal of PDA by high temperature calcination, a mace-like CuO@MnO₂ nanorods was formed, in which CuO nanoparticles distributed on the surface of the MnO₂. The unique structure endows the mace-like CuO@MnO₂ composite nanorods with superior broad-spectrum Fenton-like catalytic activity for the degradation of the ECs under acidic and neutral conditions, and the highest removal rate of tetracycline hydrochloride and rhodamine B can exceed 90 % within 30 min and 60 min, respectively. Furthermore, the mace-like CuO@MnO₂ composite nanorods presented good chemical stability along with anti-interference ability. After eight cycles, the catalytic activity still remained above 60 %. More importantly, in the treatment of actual industrial wastewater, the mace-like CuO@MnO₂ composite nanorods also showed good catalytic ability.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118411"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of roughening current density on the structure and performance of RTF copper foil","authors":"Miao Jiang,&nbsp;Haojie Wang,&nbsp;Delong Chen,&nbsp;Ziting Liu,&nbsp;Yan Shen,&nbsp;Chengfei Zhu","doi":"10.1016/j.mseb.2025.118393","DOIUrl":"10.1016/j.mseb.2025.118393","url":null,"abstract":"<div><div>When producing reverse treated copper foil (RTF) by roughening raw foil, the selection of current density can affect the copper ions deposition. This study investigated the effect of 3.6 ∼ 10.8 A/dm² current density on RTF copper foil. The roughness and peel strength regression equations were established based on four structural parameters. Multidimensional images were employed to illustrate the relationship between structural parameters and performance. The results showed that the weight of factors affecting copper foil roughness was ranked as follows: coverage rate, copper nodule size, and nodule size variance. The copper nodule size variance and density were equally important in influencing the peel strength of the copper foil. The average experimental and predicted error rate is approximately 2.32 % and 1.73 %. The optimal current density was determined to be 9 A/dm², at which the RTF copper foil exhibited both a low roughness of 2.714 μm and a high peel strength of 1.09 N/mm.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118393"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 comparison of amorphous and crystalline zinc molybdate by an electrochemical evaluation for supercapacitor application","authors":"Armin Moradjoui Hamedani ,&nbsp;Rasoul Sarraf-Mamoory ,&nbsp;Mohammad Gol Mohammad","doi":"10.1016/j.mseb.2025.118382","DOIUrl":"10.1016/j.mseb.2025.118382","url":null,"abstract":"<div><div>This study explores the synthesis and electrochemical performance of amorphous and crystalline zinc molybdate (ZnMoO₄) as supercapacitor electrode materials. ZnMoO₄ was synthesized via in situ electrochemical deposition on nickel foam using sodium molybdate and zinc nitrate. Structural and morphological characteristics were analyzed using XRD, FTIR, Raman spectroscopy, ultraviolet–visible spectroscopy (UV–Vis), and FE-SEM. Electrochemical performance was evaluated in 6 M KOH using cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). Crystalline ZnMoO₄ exhibited a 21 % higher specific capacitance and superior cycling stability, retaining 97.22 % of its capacitance after 1000 cycles, compared to 94.6 % for the amorphous counterpart. The enhanced performance is attributed to higher crystallinity, lower resistance, and improved ion transport. A pseudocapacitive energy storage mechanism was confirmed. These findings highlight crystalline ZnMoO₄ as a promising electrode material for high-performance supercapacitors, emphasizing the role of crystallinity in optimizing energy storage.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"320 ","pages":"Article 118382"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}