FARADAY DISCUSSIONS
·
2017
·Vol. 201
·63-70
·
IF 3.588
Nian Zhao,Ping Li,Xin Mu,Chuanfang Liu,Fuxing Sun,Guangshan Zhu
A novel ultra-stable metal–organic framework, MCIF-1, [Cu2(DCI)2](MeCN), based on dicyanoimidazole and Cu(I), has been synthesized at room temperature successfully. MCIF-1 shows excellent water stability and can retain crystallinity after soaking in water for about one week. In addition, MCIF-1 also shows exceptional resistance under both acidic and basic conditions within a large pH range from 0 to 13.5. What is more, after modifying the synthesis procedure slightly, we can produce this material in a large scale during a very short time. Mild synthesis conditions, excellent stability and ease of large scale production give MCIF-1 great potential for practical use.
研究领域:
材料科学
·
无机化学
·
纳米技术
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 50
·2305867
·
IF 19
Yuanjun Ma,Lilan Wu,Xueyan Ren,Yongqiang Zhang,Siyu Lu
Large-scale production of full-color carbon dots (CDs) at room temperature under atmospheric pressure will promote their industrial application. Herein, o-phenylenediamine is used as a single-precursor carbon source and hydrogen peroxide as an oxidant. Kilogram-scale CDs are obtained by stirring these reactants at room temperature in air for 30 min. After purification and acid treatment, blue-, green-, and red-fluorescence CDs with photoluminescence peaks at 481, 539, and 625 nm are obtained with quantum yields of 21.76%, 27.12%, and 13.06%, respectively. Based on chemical structural characterizations, a reasonable formation mechanism is deduced, with blue, green, and red fluorescence arising from carbon nuclei stacked in conjugate planes containing fragments of quinoxaline, 2,3-diaminophenazine (2,3-DAPN), and protonated 2,3-DAPN, respectively. High-quality multi-color and white light-emitting diodes are successfully fabricated to demonstrate potential commercial applications in display and illumination.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 18
·10901-10905
·
IF 3.108
Yanxia Hao,Feng Xu,Meng Qian,Jijian Xu,Wei Zhao,Fuqiang Huang
It is difficult for current supercapacitor electrode materials to meet the growing need for energy storage, considering their complicated preparation methods and high costs. Massive preparation strategies are of great importance for preparing low cost materials with good performance for supercapacitor applications. Herein, we developed a novel double crucible method to synthesize nitrogen-doped porous carbon (NPC) from natural flour in the molten salt of LiCl/KCl at 650 °C. The NPC material has large specific surface area (585 m2 g−1) and high nitrogen doping content (6.5%). When used as an active supercapacitor electrode material, it exhibits a specific capacitance of 261 F g−1 at 1 A g−1 in 1 M H2SO4 and 94% capacitance retention at 15 A g−1 after 10 000 cycles. The new synthetic method is promising for application in massive production of nitrogen-doped porous carbon for energy storage.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Fan Lei,Meng Yang,Feng Jiang,He Zhang,Zhi Zhang,Dazhi Sun
Fluorographene (FG), as an important class of graphene derivatives, has shown great promise in high-performance devices and lubricating materials. However, the large-scale fabrication of high-quality and impurity-free FG nanosheets still remains a main challenge. Herein, a simple liquid-phase exfoliation approach to prepare thin FG nanosheets through the preliminary intercalation of raw graphite fluoride (GrF) particles by N,N-dimethyl formamide molecules, followed by a short-time microwave treatment is reported. Atom force microscopy measurements demonstrate that as-prepared FG nanosheets are comprised of no more than four monolayers after the microwave irradiation. After exfoliation, a small amount of aromatic C C groups in the FG nanosheets are restored, which slightly lowers the F content in FG as compared with the raw GrF. Besides, no other side reaction and impurity elements are introduced during the exfoliation process as revealed by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. The resultant high-quality FG nanosheets exhibit excellent thermal stability and remarkable lubrication behavior in oil, and thus can be used as a new class of graphene derivatives with the capability of large-scale fabrication for the future device and various other applications.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2020
·Vol. 306
·期 3
·2000643
·
IF 3.853
Yaoyu Pan,Qiongfang Song,Yalin Zhu,Yun Wang,Zhengguang Sun,Xueqin Chen,Ziqiang Xu,Cao Li,Bingbing Jiang
Large-scale and simple strategies to flexibly preparing materials with industrial application potential attract people's attention. Layer-by-layer (LBL) self-assembly technology is a typical preparation method for current nanomaterials to address the large-scale concern and achieve the possibility of a simple, streamlined and controllable process. Here, a novel and simple strategy is developed to fabricate microporous polymeric film (MPF) based on poly(styrene-hydroxyethyl methylacrylate) (P(St-HEMA)) microspheres, in combination with LBL self-assembly technology and hypercrosslinked microporous post-treatment. To improve the mechanical properties of the film, the buffer layer of polyethyleneimine (PEI) and poly(sodium- p -styrenesulfonate) (PSS) are used to avoid swelling of nanoparticles and the methacryloxyethyltrimethyl ammonium chloride (DMC) is chosen to increase the force between the nanoparticles via UV-crosslinking. The MPF has well CO 2 capture capabilities up to 46.21 wt% (10.52 mmol g −1 ), large-scale feature and certain improved mechanical properties. It is hoped that the research could display a successful strategy to prepare the large-scale film for the application of industrialization.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 1
·498-506
·
IF 3.049
Wei Wang,Ang Zheng,Yifan Jiang,Dongsheng Lan,Fenghua Lu,Lelin Zheng,Lin Zhuang,Ruijiang Hong
Monodisperse colloidal particles have promising applications in electrophoretic displays with vivid colors, reversibility and low switching times. In this study, a facile, effective and large-scale strategy for preparing size-controlled Fe3O4@SiO2 particles is reported. Multiple Fe3O4 particles were synthesized by a modified solvothermal method using sodium citrate as a surface modifier with a binary solvent, and were then coated with a SiO2 layer to obtain a highly negatively charged surface via a modified Stöber method. Owing to the easily controlled sizes and sufficient surface charges, Fe3O4@SiO2 particles can be assembled into colloidal amorphous arrays with the balance of electrostatic repulsion and electrophoretic forces. The reflections cover wavelengths ranging from 802 to 453 nm, and were optimized by investigating the dependence of the particles on variables such as particle size, particle volume fraction, and electric field intensity. The large-scale preparation of electrically responsive Fe3O4@SiO2 particles facilitates an electrophoretic display with broad-range colors, showing the practical potential in industrial application.
研究领域:
材料科学
·
纳米技术
·
显示技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Longgang Zhang,Pengyu Zhang,Zhiguang Guo
Photothermal superhydrophobic coatings offered dual functionality by enabling both passive anti-icing and active de-icing. However, their practical application was often limited by issues such as low efficiency and poor durability. In this study, we reported a highly efficient photothermal superhydrophobic coating with a coral-mimetic structure—referred to as MCNT-PS Coating—that was amenable to large-scale fabrication. The coating was constructed by cross-linking composite particles with a “particle-vine” structure via an amide reaction. Mimicking the natural growth of coral, a spraying method was employed to deposit a rough surface structure. The introduction of a phase separation process imparted the coating with hierarchical surface roughness, increasing both the distribution density and uniformity of coral-like microstructures. Simultaneously, a nanoporous network was formed, providing stable superhydrophobicity and multiple mechanisms for light absorption and reflection. The coating exhibited excellent static anti-icing performance, with a delayed freezing time at −15 °C that was 4.2 times longer than that of the bare substrate. Moreover, it showed extremely low ice adhesion of only 0.3 N under −20 °C conditions. Owing to its efficient photothermal response, the coating could rapidly heat to 49 °C within 10 s under standard solar irradiation (1000 W/m 2 ), reaching a saturation temperature of 95 °C within 180 s. Compared to the uncoated substrate, the MCNT-PS Coating demonstrated superior photothermal de-icing performance under low-temperature conditions, with a defrosting efficiency twice that of the original surface. In addition, the coating showed excellent durability and scalability, indicating strong potential for practical, large-scale applications in real-world environments.
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产品关联
DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2012
·
IF 1.612
Hongtao Cui,Yan Liu,Wanzhong Ren
With same procedure and same starting materials, nearly monodispersed α-Fe 2 O 3 , γ-Fe 2 O 3 and Fe 3 O 4 nanoparticles were synthesized on an large scale of about 60 g in a single reaction through a low temperature sol–gel route. The simple preparation process includes the reactions between FeCl 2 and propylene oxide in ethanol solution at boiling point to form a sol and the following drying of the sol. The different iron oxide phases can be obtained just by changing of the drying conditions for the sol solution. The strategy developed in this study offers important advantages over the conventional routes for the synthesis of α-Fe 2 O 3 , γ-Fe 2 O 3 and Fe 3 O 4 nanoparticles , showing potential for its application in industrial production of iron oxides.
研究领域:
材料化学
·
纳米科学
·
无机化学
·
功能材料
·
化学工程
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2018
·
IF 4.229
Bo Xu,Yiqiang Sun,Zhiming Chen,Shuying Zhao,Xiaodong Yang,Haijing Zhang,Cuncheng Li
Facile fabrication of high-performance catalyst based on low-cost metals for sustainable hydrogen evolution is still a matter of cardinal significance. However, synthetic approaches for electrocatalyst are usually complicated and the yields are often low. Herein, we report a one-step simple method for the large-scale synthesis of Co/Ni-MoO 2 composite as efficient and stable hydrogen evolution reaction (HER) electrocatalyst to drive 10 mA cm −2 current density with a low overpotential of 103 mV in basic media. Co-MoO 2 and Ni-MoO 2 were also prepared using this method with overpotential of 137 and 130 mV, respectively, to gain the same current density. These results indicate that this facile synthesis approach is of great practical importance as it can be easily used for large-scale preparation of electrocatalysts in industry.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2016
·Vol. 51
·期 8
·3979-3988
·
IF 2.302
Li Ga Long,Ma Pei,Zhang Yi Fan,Liu Xiao Li,Zhang Huan,Xue Wei Ming,Mi Yu,Luo Yan E.,Fan Hai Ming
Cu 2 O nanowire mesocrystals (NWMCs), which possess well-defined octahedral morphology and high-porosity architecture with anisotropic interpenetrating nanowires, have attracted considerable attention owing to their superior physical and chemical properties. However, the current synthetic approach for Cu 2 O NWMCs using graphene oxide as modifier leads to uncontrollable products and low productivity (~30 %), which largely hinder their further industrial application. Herein, we report a modified synthetic approach for controllable and large-scale preparation of Cu 2 O NWMCs using perylene-3,4,9,10-tetracarboxylic dianhydride molecule as modifier. The effects of growth time and initial pH on the morphology of final products have been systemically investigated. Under the optimal reaction condition with initial pH of 5.3 and reaction time of 15 h, the well-defined octahedral Cu 2 O NWMCs can be obtained with a productivity as high as ~75 %. In addition, this synthetic approach can be easily scaled up from 50 to 500 mL autoclave. The ability of high productivity and reproducibility in synthesis of Cu 2 O NWMCs enable us to further study their peroxidase-like activity by catalyzing the oxidation of o -phenylenediamine in the presence of H 2 O 2 . The Cu 2 O NWMCs have exhibited a superior catalytic activity with the K
cat of 1.14 × 10 −2 , 10 times higher than that of horseradish peroxidase. Moreover, the Cu 2 O NWMCs can also retain 69.5 % of their initial activities after 10-batch redox reactions. Our results provide a facile approach to controllable and large-scale synthesis of Cu 2 O NWMCs using homogeneous molecule modifier and open up opportunities to use Cu 2 O NWMCs as nanozyme for future industrial application.
研究领域:
材料科学
·
催化化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Zhan Ni,Mengxin Liu,Bo Li,Xinan Shi,Qiulin Cao,Daocheng Pan
LaPO4:Ce3+, Tb3+ nanoparticles with a particle size of 2.7 nm are prepared by a facile room-temperature ligand-assisted coprecipitation method in an aqueous solution. Short-chain butyric acid and butylamine are used as binary ligands and play a critically important role in the synthesis of highly luminescent LaPO4:Ce3+, Tb3+ nanoparticles. The absolute photoluminescence quantum yield as high as 74% can be achieved for extremely small LaPO4:Ce3+, Tb3+ nanoparticles with an optimal composition of La0.4PO4:Ce0.13+, Tb0.53+, which is different from La0.4PO4:Ce0.453+, Tb0.153+ for bulk phosphor. The energy transfer from Ce3+ ions to Tb3+ ions is investigated in sub-3 nm LaPO4:Ce3+, Tb3+ nanoparticles, and Ce3+ ion emission is almost completely suppressed. This room-temperature, ultrafast, and aqueous-phase synthetic strategy is particularly suitable for the large-scale preparation of highly luminescent LaPO4:Ce3+, Tb3+ nanoparticles. LaPO4:Ce3+, Tb3+ nanoparticles (110 g) can be synthesized in one batch, which is perfectly suited to the needs of industrial production.
研究领域:
材料科学
·
纳米技术
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Zhijie Yuan,Lingfeng Wang,Mengyuan Wu,Yuchao Niu,Yingshuang Meng,Xuehua Ruan,Gaohong He,Xiaobin Jiang
Active pharmaceutical ingredients (APIs) crystal preparation is a significant issue for the pharmaceutical development attributed to the effect on anti-inflammatory, anti-bacteria, and anti-viral, etc. While, the massive preparation of API crystal with high polymorphism selectivity is still a pendent challenge. Here, we firstly proposed a criterion according to the molecular aggregation, molecular orientation, and hydrogen bond energy between INA molecules from molecular dynamics (MD) simulations, which predicted the hydrogen bond architecture in crystal under different electric fields, hinting the recognition of crystal polymorphism. Then, an electric field governing confined liquid crystallization was constructed to achieve the INA crystal polymorphism screening relying on the criterion. Further, magnifying confined liquid volume by 5000 times from 1.0 μL to 5.0 mL realized the massive preparation of INA crystal with high polymorphic purity (>98.4%), giving a unique pathway for crystal engineering and pharmaceutical industry on the development of innovative and generic API based drugs.
研究领域:
药学
·
材料科学
·
计算化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）