CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Xiaoxi Li,Yucheng Tian,Xiaoyan Liu,Jianyong Yu,Yujang Cho,Minsoo Kim,Il-Doo Kim,Bin Ding
Abstract Inorganic microfiltration membranes are essential for water purification and microplastics detection; however, achieving high-flux water treatment and enabling straightforward microplastics analysis remain global challenges due to the limitations in the self-supporting nature and structural tunability of inorganic materials. Here, inspired by Voronoi-like natural structures, we report a route to create silicon dioxide (SiO2) nanofibrous membranes with a Voronoi-like nanonet structure (SiO2 VNMs), in which humidity-regulated phase separation and curing generate organosilicon-derived nanonets from silicone oil solution on electrospun and calcined SiO2 fibrous scaffolds. Subsequent calcination converts the organosilicon-derived nanonets into SiO2 nanonets. Benefiting from the self-organized Voronoi-like nanonet architecture, the resulting SiO2 VNMs simultaneously exhibit small pore sizes (≈150 nm), high porosity (≥80%), and an ultrathin thickness (≈1 μm). Consequently, the SiO2 VNMs deliver high filtration flux at low pressure (>6600 L m –2 h–1 at 15 kPa), and even under gravity-driven conditions (>900 L m–2 h–1 at 0.1 m H2O), exceeding that of existing inorganic membranes (6200 L m–2 h–1 at 70 kPa), rivaling the best state-of-the-art organic membranes. Moreover, the ultrathin inorganic structure enables direct on-membrane microscopic and spectroscopic identification of microplastics without elution. This work establishes a new pathway for designing inorganic filtration membranes that integrate efficient water purification with streamlined on-membrane microplastics detection.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jing Chang,Xukun Yang,Yifan Li,Shuai Chen,Qinyin Xu,Yixin Zhang,Liwen Yan
Mullite fiber felt with outstanding thermal stability and excellent thermal insulation performance was widely used as a thermal protection material in the aerospace field. However, the poor mechanical property severely restricted the application of mullite fiber felt. Herein, the mullite fiber felt reinforced Al 2 O 3 -SiO 2 (MF/Al 2 O 3 -SiO 2 ) porous composites with lamellar matrix were fabricated by the sol impregnation combined with the freeze-drying method. Compared to the ambient-dried MF/Al 2 O 3 -SiO 2 composites, freeze-dried MF/Al 2 O 3 -SiO 2 composites with lamellar matrix possessed a lower density (0.32–0.86 g/cm 3 ), higher porosity (73.30–90.03 %) and lower thermal conductivity (0.12–0.22 W m −1 K −1 ). What’s more, due to the dense lamellar Al 2 O 3 -SiO 2 ceramic matrix, the compressive strength of freeze-dried MF/Al 2 O 3 -SiO 2 composites was nearly 4 times higher than that of ambient-dried MF/Al 2 O 3 -SiO 2 composites and up to 4.25 MPa. In addition, the thermal and mechanical properties of MF/Al 2 O 3 -SiO 2 composites were maintained well at 1400 °C. The improved thermal insulation and mechanical properties of MF/Al 2 O 3 -SiO 2 porous composites with lamellar matrix indicated that MF/Al 2 O 3 -SiO 2 porous composites could be a promising candidate as the high-temperature thermal protection material in the aerospace field.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Liu Yunan,Fu Renli,Lu Ran,Shen Minhao,Hu Yunjia,Bei Guoping
Low Temperature Co-Fired Ceramic (LTCC) substrates used for microwave circuits typically must have low dielectric loss and low permittivity, as well as the ability to co-fire with metals. The dielectric properties of the microcrystalline glass materials used as the LTCC substrates are closely related to the crystallization process during sintering. This study focuses on the crystallization process of CaO-B 2 O 3 -SiO 2 microcrystalline glass. Wollastonite and pseudowollastonite seeds were used to control the degree of crystal precipitation. The phase composition and microstructure of each sample were analyzed in detail to elucidate the changes in the dielectric properties and sintering performance of the material. The addition of crystal seeds as nucleation sites promoted crystallization and led to the formation of quartz crystals. The sintered samples exhibited excellent dielectric properties: ε r < 4 at 18 GHz, tan δ < 0.0015, and Q × f > 12000 GHz. They have great potential as high-performance LTCC substrates.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Coatings Technology and Research
·
2025
·
IF 2.8
Zhou Jie,Su Jingying,Su Fenghua,Zhao Tianxin,Li Ji,Yang Pengfei,Zhang Qingyu
At present, superhydrophobic coatings have a wide range of applications in self-cleaning, drag reduction, and corrosion protection. However, their poor mechanical stability has a significant impact on the service life and effectiveness of the coatings. In addressing this challenge, this study introduced epoxy resin (EP) with high strength and strong adhesion as the resin matrix. The composite coating, synthesized through a straightforward spraying technique, incorporates modified carbon nanotubes (F-CNTs) and hydrophobic fumed nanosilica (SiO 2 ) as fillers. The robust EP/F-CNTs/SiO 2 superhydrophobic coating exhibited excellent anti-rubbing ability and superadhesion strength, which was attributed to the EP intermediate layer significantly enhancing the adhesion strength between the coating and the stainless steel substrate with a remarkable adhesion grade of one. Tafel and EIS test results revealed a corrosion inhibition efficiency of up to 99.75% for the coating. The exceptional corrosion resistance of the coating is attributed to the outstanding electron transfer capability of F-CNTs. In addition, the coating could resist corrosion from strong acids and bases. It is believed that the facile and low-cost method offers an effective strategy and promising industrial applications for fabricating robust and super anti-corrosion superhydrophobic surfaces on various metallic materials.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
CEMENT AND CONCRETE RESEARCH
·
2025
·
IF 13.1
Gang Qiao,Yuyang Zhao,Pan Wang,Dongshuai Hou,Binmeng Chen
Interface between calcium silicate hydrate (CSH) and polymers is crucial for the mechanical properties and durability. However, direct experimental determination of interfacial mechanics at nanoscale has not been reported. Herein, atomic force microscopy (AFM) with grafted Poly (1-vinylpyrrolidone- co -acrylic acid) (PVP-co-PAA) on AFM tips were utilized to measure interfacial properties between CSH and PVP-co-PAA under four C/S at nanoscale. The interfacial force curves were clearly presented for the first time. Results showed that compared to as-received tip, representing SiO 2 , the adhesive force and energy dissipation increased by 72.42 % and 417 %. Interface separation speed was delayed by 300 % ∼ 400 %. Molecular simulations of interfacial separation aligned with AFM experimental results, where interfacial ion-pair, dynamics stability and polymer conformational changes provided insights for AFM experiment on adhesion force and delay of interface separation speed. Determination of interfacial mechanics by AFM experiment and insights by molecular simulation decoded CSH/PVP-co-PAA interfaces thoroughly.
研究领域:
材料科学
·
纳米技术
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Muhammad Shoaib,Shengyuan Xu,Haocheng Zhai,Qihui Sun,Shahab Ahmad,Maysam alsharawneh,Yifan Liu,Yang Guo,Xinyu Mu,Wei Tian,Xian Jian
An ideal and distinctive microwave-absorbing carbon-based material feature an eco-friendly, low-cost fabrication process combined with high loss efficiency and strong absorption potential. Here we design an innovative nanohybrids with carbon nano onion (CNO) from paraffin ultra-pure lamp oil by flame method awning unique structure to boost up the dielectric loss. And TiO 2 is introduced for efficient microwave absorption loss through an in-situ process using C 7 H 8 O and TiCl 4 , while SiO 2 plays a critical role in controlling the dielectric constant through the use of tetraethyl orthosilicate (TEOS). To boost up the nanohybrids effective loss mechanism the material is exposed to a carbon capsule (CC) utilizing acetylene (C 2 H 2 ) as a carbon source for 5 minutes under argon to prepare CNO/TiO 2 /SiO 2 /CC nanohybrids. The nearby dual-nanocarbon forms multi-level interfaces enhancing the multi-level rebound and microwave absorption of the microwave interfaces. The as-designed CNO/TiO 2 /SiO 2 /CC has effective minimum reflection loss (RL min ) value of -54.4 dB and the maximum effective absorption bandwidth (EAB max ) of 5.5 GHz at a thickness of 1.9 mm. It also has good thermal conductivity. Hence, this work confirms that high-performance nanohybrids derived from paraffin ultra-pure lamp oil are promising candidates, providing a novel approach for the design and development of carbon-based microwave absorbers.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Zhou Weijian,Luo Lingjie,Lin Weihao,Zheng Wei,Du Gaofeng,Wen Fan,Meng Fanbo
An increasing number of ore tailings generated from the metal ore beneficiation and smelting are expected to be reused in the near future; however, traditional treatments lack efficient secondary utilization of ore materials. Herein, polymetallic ore tailing is firstly recycled into SiO 2 -based nanofillers through a plasma-assisted ball milling technology, and the obtained SiO 2 is successfully applied in the PVdF-HFP-based solid electrolyte in Li metal batteries. It is found that the trace amounts of element Sn in ore tailing would be successfully introduced into the SiO 2 , and synthesized Sn-doped SiO 2 shows a lamellar structure with good crystallinity and rich oxygen vacancies. The addition of Sn-doped SiO 2 can improve the ionic conductivity, mechanical properties, and thermal stability of SSE, achieving low electrochemical polarization and high reversibility in the solid-state symmetrical Li cells. Manufactured solid-state NCM622||Li full cell exhibits good charge capability, stable cyclic property, and rate capability under room and high temperatures. This work is the first attempt to realize the recycling of ore tailings into SiO 2 nanofillers in advanced solid-state Li metal batteries, which may supply a new sight of the reusing treatment and applications of ore tailings in the field of electrochemical energy storage.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 14
·12045-12054
·
IF 2.324
Huang Zhaohui,Chen Hui,Zhao Lei,He Xuan,Fang Wei,Du Yingying,Li Weixin,Wang Guanghui,Zhang Fuqing
With increasing concern about the problems of environmental pollution and energy, the visible light photocatalytic for dye degradation is receiving considerable attention. CdSe quantum dot (CdSe QDs) sensitized MIL-125/TiO 2 @SiO 2 biogenic hierarchical materials (CMTS) has been fabricated through dual modification of CdSe with TiO 2 and MIL-125, that is the metal–organic framework (MOF) with Ti ions as metal centers and terephthalic acid as the organic ligand. The hierarchical porous heterostructured MIL-125/TiO 2 @SiO 2 composites are firstly obtained by a biogenic-templated method using rice husk as biomorphic. CdSe QDs as sensitizer is further deposited on MIL-125/TiO 2 @SiO 2 via a dipping method. This strategy applies CdSe, MIL-125, and TiO 2 undergo a two-level heterostructure, setting a stage for efficient charge separation. In addition, CMTS possesses a hierarchical porous structure in scale from micrometer to nanometer with high BET surface area. As a result, the CMTS can efficiently adsorption target, improving light harvesting and promoting degradation of organic waste from water. Meanwhile, Rhodamine B aqueous solution can be degraded more than 98% by CMTS in 100 min under visible light irradiation.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
·
2018
·Vol. 50
·期 1
·242-250
·
IF 1.834
Xiao Jiusan,Wang Qi,Jiang Bo,Zhu Hongmin
Carbothermic selective reduction of titanium concentrate ore for the preparation of titanium oxycarbide was presented and SiO 2 was found to be partly reduced during the process. The equilibrium relationship between Si dissolved in metallic Fe and SiO 2 existed in corresponding slag was analyzed thermodynamically, and then revealed by a series of designed equilibration experiments. The results are in accordance with the calculated values obtained from thermodynamic analysis and have well explained the phenomenon that part of SiO 2 is reduced during selective reduction processing of titanium concentrate ore.
研究领域:
冶金学
·
材料科学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Tingting Yan,Senlin Deng,Gang Wang,Jie Li,Wei Chang,Guoliang Zhang,Chunshan Li
Acid-base bifunctional Cs-Zr supported SiO 2 exhibit high catalytic performance on aldol condensation of methyl propionate (MP) and formaldehyde (FA) toward methyl acrylate (MMA). However, the effect of structural configuration of surface active sites on the formation rate and selectivity of MMA remains unclear. In this study, a surface engineering strategy was proposed to directionally induce the formation of catalytically active centers. Comprehensive characterizations were performed to identify the structural configuration of surface active Cs and Zr sites and their influence on MMA production in combination with catalytic evaluation. It was discovered that the increased density of isolated hydroxyl groups (≡Si-OH) on SiO 2 support after calcination treatment promoted the formation of well-defined Si-O-Zr and Si-O-Cs structures, corresponding to the medium strong acid and weak base sites. The acid-base properties and their balance of as-prepared Cs/Zr/SiO 2 catalyst could be controllably modulated by the surface hydroxyl density and Cs (Zr) loading. These highly dispersed Cs and Zr species generated through the strong interaction with hydroxyl groups facilitated the production of MMA while suppressed the undesired Methylacrolein (MAL). Consequentially, the formation rate and selectivity of MMA could reach up to 0.91 mmol/h/g Cat. and 94.3 % on the optimal 1.5Cs/0.25Zr/SiO 2 catalyst. Further mechanistic studies using In-situ DRIFT revealed the catalytic pathway toward MMA and MAL, confirming the activation of MP was the kinetic-relevant step.
研究领域:
催化化学
·
材料化学
·
表面科学
·
有机合成
·
工业催化
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yunyun Huang,Hongju Ren,Huihuang Fang,Dong Ouyang,Chongqi Chen,Yu Luo,Li Lin,Dabiao Wang,Lilong Jiang
Ammonia decomposition for onsite hydrogen production has been regarded as an important reaction which links to efficient hydrogen storage, transport and utilization. However, it still remains challenging to develop efficient catalysts with robust stability for ammonia decomposition. Herein, an integrated strategy was employed to synthesize Ru/SiO 2 @N-CS via wrapping a thin layer of N-doped carbon onto the SiO 2 sphere, following the anchor of Ru nanoparticles (NPs) onto the support. The obtained Ru/SiO 2 @N-CS (Ru loading: 1 wt%) shows a promising performance for ammonia decomposition, reaching 94.5 % at 550 °C with a gas hourly space velocity (GHSV) of 30 000 mL g cat -1 h −1 . The combination of the SiO 2 as the core prevents the degradation of N-doped carbon layers and then enhance the durability of the catalysts, remaining stable after 50 h at evaluated temperatures. Adequate characterizations were used to illustrate the effect of microchemical environment on ammonia decomposition activity of Ru/SiO 2 @N-CS catalyst under different calcination atmosphere and the correlation between structure and performance.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2025
·
IF 4.7
Bo Zhu,Bo Yang,Xu Sun,Xinyu Tao,Xinlao Wei
Polymer insulation materials are affected by electromagnetic fields, mechanical stress, long-term illumination, ambient temperature, and other operating conditions. These conditions can cause water trees and electrical trees damage, resulting in insulation failure. Self-healing technology is the fundamental way to solve this problem. However, the effective self-healing of water trees and electrical tree damage in insulating materials is extremely challenging. To solve this problem, a dual-responsive self-healing insulating material was prepared by doping 1% modified silicon dioxide, which made a breakthrough in the self-healing and suppression of electrical trees and water trees, and doping modified silicon dioxide particles enhanced intermolecular interaction and improved material mechanics and insulation performance. When electrical and water-mixed tree branches aging occurs, oligomers generated by grafted siloxane groups and acrylate groups can effectively fill the pores of the electrical and water trees on top of the physical filling of the pores by silicon dioxide particles. The performance of the cured material is close to that of the pure sample. This method realizes the dual-response self-healing of the insulation material after the aging of the electro-hydro mixed tree, which provides a new way to repair polyethylene cable insulation and has great potential in practical applications.
研究领域:
材料科学
·
电气工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）