INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Songlin Wang,Yu Guo,Qi Liu,Peng Yang,Huabo Li,Lei Liang,Hongying Niu,Qiying Zhang,Yanyan Liu,Jianji Wang
The synthesis of carbonates by using nontoxic feedstocks and ecofriendly heterogeneous catalysts has received great attention but remains a significant challenge. Herein, a series of Mg/Al-codoped porous carbons (MgAl@CM) were developed and applied for transesterification to synthesize methyl phenyl carbonate (MPC). The results showed that MgAl@CM possessed abundant mesopores, large amounts of N/O-containing groups, and dispersed Mg/Al species. And 1Mg5Al@CM-700 exhibited the highest catalytic activity with a diphenyl carbonate conversion of 80.2% and MPC selectivity of 99.6% due to its unique structure and acidic–basic properties, indicating a highly efficient acid–base synergistic catalysis process. Moreover, the catalyst presented good stability and reusability for six recycles without a substantial activity loss. The mechanism based on the synergistic catalysis was investigated. This work provides a novel perspective for the design of heteroatom-doped carbon catalysts to accomplish an efficient MPC synthesis.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Lu Kang,Qingning Li,Ketong Luo,Shengkui Zhong,Dongliang Yan
Nonaqueous rechargeable Al batteries (RABs) have attracted significant research interest due to the extremely abundant reserves, high theoretical capacities, and low-cost. However, the commonly used nonaqueous RAB ionic liquid (IL) electrolytes are highly air-sensitive and high-cost, which seriously limits their commercial application. Herein, AlCl3–guanidine hydrochloride (AlCl3–GdnHCl), a new low-cost and environmentally friendly deep eutectic solvent (DES) with only 1/40 of the cost of [EMIm]AlxCly is introduced into applications for nonaqueous RABs. The battery displays a discharge capacity of 128 mAh g–1 at 0.1 A g–1, which is significantly higher than that of 88 mAh g–1 in [EMIC]AlxCly electrolyte. It can reach 124.6 mAh g–1 at 1 A g–1 with the Coulombic efficiency of 99.5% for 1000 cycles. According to the mechanism studies, during the charge–discharge cycle, the fast deposition/dissolution reaction of Al took place at the anode side, while intercalation/deintercalation reaction of [AlCl2(Gdn)n]+ ions and chloroaluminate anions [AlxCly]− (i.e., Al2Cl7– and AlCl4–) occurred at the graphite cathode side. With such significant electrochemical behaviors, the AlCl3–GdnHCl DES possesses great potential for use in high-performance storage devices.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Dongqing Kong,Haodong Fan,Xuefei Ding,Dandan Wang,Shuang Tian,Haoyu Hu,Dongfeng Du,Yanpeng Li,Xiuli Gao,Han Hu,Qingzhong Xue,Zifeng Yan,Hao Ren,Wei Xing
The urgent need for large-scale, low-cost energy storage has driven a new wave of research focusing on innovative batteries. Due to the high capacity and the low-cost of elemental Al, aluminum-ion batteries (AIBs) are expected as promising candidates for future energy storage. However, further development of AIBs is restricted by the performance of existing carbon-based cathodes and metal chalcogenide cathode materials. In this work, we deposited polythiophene (Pth) on a graphene oxide (Pth@GO) composite and used it as an AIB cathode material. This Pth@GO composite possesses high exposure of Pth active sites, high conductivity, and high structure stability while providing a very high discharge capacity (up to 130 mAh g–1) and outstanding cyclic stability (maintaining above 100 mAh g–1 after 4000 cycles). First principles calculations and experimental results show that the charge is stored on Pth@GO through an electrostatic attraction between AlCl4– and β-hydrogen (Cβ–H) sites in polythiophene.
✓ 已验证
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
·
IF 4.326
Fangyi Pei,Zhimiao Wang,Jianhua Lv,Fang Li,Wei Xue
Cu–Zn–Al catalyst was prepared by the co-precipitation method, and the catalytic performance for transfer hydrogenation of acetophenone (AP) to 1-phenylethanol (1-PhE) was evaluated using isopropanol (IPA) as a hydrogen source. The addition of Zn changed the morphology of the catalyst and reduced aggregation of catalyst particles, resulting in highly dispersed Cu active sites. As the Zn content increased, the valence state of Cu species changed. When the Cu/Zn molar ratio was 2/3, the Cu+/Cu0 ratio in the catalyst was 0.81, resulting in good selectivity for 1-PhE. The reaction conditions were optimized over the Cu–Zn–Al catalyst with a Cu/Zn molar ratio of 2/3. When the reaction was performed at 180 °C for 2 h with an IPA/AP molar ratio of 15, the AP conversion was 89.4% and the 1-PhE selectivity was 93.2%. The Cu–Zn–Al catalyst showed good stability, and AP conversion and the 1-PhE selectivity were essentially unchanged after five cycles.
✓ 已验证
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 89
·73068-73076
·
IF 3.84
Lifang Zhu,Hongwei Yu,Huijuan Zhang,Jiangnan Shen,Lixin Xue,Congjie Gao,Bart van der Bruggen
Aromatic poly(m-phenyleneisophthalamide) (PMIA) and the metal-organic framework (MOF) MIL-53(Al) were employed as the polymer matrix and additive, respectively, to develop mixed matrix membranes (MMMs) via non-solvent induced phase separation for potential application in organic solvent nanofiltration. The prepared membranes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and water contact angle measurements. The membrane water permeance enhanced when MIL-53(Al) was incorporated into the membrane structure while the rejection had no significant change. The optimum MMM (with 0.5 wt% MOF concentration) passes mono and bivalent inorganic salts but rejects larger charged organic molecules and has a mean effective pore size of 0.7 nm. The influence of organic solvents on MMM performance was also investigated and the result shows that the performance shifts towards a lower pure water permeance and a higher rejection after exposure to organic solvents (ethyl acetate or methanol). The membrane performance in organic solvent nanofiltration was evaluated on the basis of the permeance and rejection of brilliant blue G in ethanol, and the result showed that the permeance of MMMs significantly increased (by 289%) while the rejection slightly reduced by 4% in contrast to the pure membrane.
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Zhipeng Cheng,Xiaozhong Chu,Wei Zhao,Jingzhou Yin,Benlin Dai,Hui Zhong,Jiming Xu,Yu Jiang
Al powder faces high expectations for its use as fuel due to its high energy density. However, it is covered with a dense Al 2 O 3 layer, which has a high melting point. Thus, the powder has poor heat release and combustion performance. In this work, Cu/Al energetic nanocomposites are fabricated using a simple replacement reaction between Al and CuF 2 solution. CuF 2 ionizes F − to remove the Al 2 O 3 layer on the Al powder surface and ionizes Cu 2+ to provide a Cu source for deposition. The as-obtained Cu/Al nanocomposites have a typical strawberry-like core/shell structure. Cu/Al nanocomposites with different Cu contents can be obtained by simply adjusting the molar ratio of CuF 2 to Al. The design of these Cu/Al nanocomposites can improve the intensity, speed, and completion of the heat release of Al powder. The quantity of Cu strongly influences the heat release magnitude. The maximum heat release of the Cu/Al energetic nanocomposites with 5% Cu content reaches 24.7 kJ g −1 , which is approximately 1.8 times that of raw Al. The heat release mechanism of the proposed Cu/Al nanocomposite is based on the oxidation reaction phenomenon. The as-obtained Cu/Al nanocomposites are expected to have wide application prospects in solid energetic materials.
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Ran Zhang,Shangjie Zhao,Qianxi Li,Ke Wang,Ke Zhang,Xiaofan Ding,Jing Zhao,Songtao Xiao
Thorium ions, known for their elevated toxicity and radioactivity, pose substantial ecological hazards, highlighting the need for efficient technologies to selectively eliminate them from water. The solid adsorption approach has gained widespread use in removing thorium ions because of its notable effectiveness, convenience, and straightforward operation. The key to this method’s success is the solid-phase adsorbent, underscoring the pressing need to develop exceptionally efficient adsorbents for thorium ion removal. Here, we present a novel in situ synthesis approach for enhancing an aluminum-based Metal-Organic Framework (Al-MOF) through the incorporation of iron oxide (Fe 3 O 4 ). The resulting Fe 3 O 4 /Al-MOF composite adsorbent demonstrates exceptional performance: (a) unparalleled adsorption capacity, achieving a remarkable Th(IV) uptake of 3058.0 mg g −1 , significantly outperforming the unmodified Al-MOF (1324.6 mg g −1 ); (b) outstanding selectivity, exhibiting high specificity for Th(IV) adsorption (SF Th/metals > 1000); (c) superb reusability, with excellent regeneration capabilities (85 % retention after 6 cycles). Through combined FT-IR and XPS analyses, we confirm that carboxylate oxygen atoms and Fe-O adsorption sites are key contributors to the Th(IV) adsorption mechanism. This work advances the design of efficient MOF-based composite adsorbents through valuable insights.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2025
·
IF 8.9
Tian-Hao Xu,Xiang-Yu Meng,Song Shen,Guo-Chao Mo,Ping Shen
Inspired by natural hierarchical structures, this study presents a novel biomimetic Al/Al 2 O 3 composite featuring a gradient-heterogeneous architecture that effectively addresses the long-standing strength–toughness trade-off in metal–ceramic systems. A high-resolution vat photopolymerization 3D printing process was used to fabricate complex ceramic scaffolds with a multi-scale design, incorporating a turtle shell-inspired gradient in porosity and wall thickness, along with layered, tubular, and hexagonal cellular units derived respectively from nacre, ram horns, and beehives. Through pressure infiltration of molten aluminum, a fully interpenetrating composite with strong interfacial bonding was achieved. The resulting material exhibits a spatially tailored gradient in mechanical properties, achieving a surface strength of 634 MPa and a core energy absorption capacity of 14.36 MJ/cm 3 . In situ mechanical testing and finite element analysis reveal that multi-scale synergistic toughening mechanisms—including architecture-guided crack deflection, distributed plastic deformation, and stress redistribution—collectively contribute to the enhanced performance. This work demonstrates the potential of additive manufacturing-enabled structural programming to engineer composites with spatially optimized mechanical properties, offering a new paradigm for the design of advanced structural materials.
✓ 已验证
产品关联
DOI
高影响因子
HIGH PERFORMANCE POLYMERS
·
2023
·
IF 2.1
Wenchao Zhang,Qiang Fu,Qixin Yuan,Han Li,Dong Yue,Yu Feng,Qingguo Chen,Jinghua Yin
Polyimide (PI) film have been synthesized and used extensively in energy transmission, wind power generation, new energy vehicles, lidar, and high-power weapons, et al. Nevertheless, it is still challenge to further improve the breakdown strength and dielectric constant of PI film. After the powders of Al0.5xNb0.5xSi1-xO2 (NASO (x mol%)) have been fabricated, it was analyzed that the effect of doping elements Al3+ and Nb5+ on the surface chemistry and microstructure of the NASO powder. And then a small amount of NASO powder was polymerized in situ with PI matrix material, and the effects of NASO on dielectric properties and breakdown strength of the NASO/PI composites were analyzed. The results showed that the introduction of the doping elements Al3+ and Nb5+ favors could be conductive to the formation of oxygen vacancies on the surface of the NASO particle, which improved the surface activity and chemical reactivity of the NASO particle. The PI matrix can efficiently capture additional charges and enhance the insulating characteristics of the NASO/PI composite by properly doping NASO fillers with specific defect concentrations. In the results the breakdown strength of 1 vol% NASO (1 mol%)/PI composites reaches 334.38 kV/mm, which is a 19.6% higher than that of PI. Because the traps in the fillers capture and suppress the carrier transport to enhance the insulating properties of the composites. This work offers a novel synthesis method to simultaneously produce polymer dielectrics with high insulation and high polarization.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2014
·
IF 2.307
Yaoyu Ren,Hui Deng,Rujun Chen,Yang Shen,Yuanhua Lin,Ce-Wen Nan
Cubic garnet-type Al-contained Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 (Al-LLZTO) ceramics were prepared by conventional solid-state reaction using either Li 2 CO 3 or LiOH·H 2 O as Li source. The effects of Li source on the lithium ionic conductivity of Al-LLZTO ceramics were systematically investigated by comparing the synthesis processes and characteristics of the mother powders and the microstructures of the sintered pellets made with different Li sources. Different calcination processes of the raw materials mixtures with different Li sources are revealed by thermogravimetry-differential scanning calorimetry investigation. The mother powder derived from LiOH·H 2 O is of higher sintering activity than those made from Li 2 CO 3 at the same calcination temperature. For the LiOH·H 2 O-derived pellets, higher relative density and enhanced lithium-ion conductivity is achieved at a much lower sintering temperature of 1100 °C as compared with Li 2 CO 3 -derived pellets. The highest conductivity obtained at room temperature is 9.28 × 10 −4 S cm −1 , which is the highest value reported to date for the same Ta doping level.
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2016
·
IF 4.803
Wei Li,Zeng Chen,Chaochao Wei,Wenping Kong,Binghua Xu,Xiyang Jia,Chunli Diao,Shengjun Li
An electrochemical method was developed for the formation of Al-Cu alloys. The electrodeposition of aluminum on Mo and Cu substrates was studied using cyclic voltammetry in molten LiCl-KCl-AlCl 3 (2 wt.%). During the cathodic scan of the cyclic voltammograms, three different Al-Cu alloys were observed before pure Al formed on the Cu substrate. The electrochemical formation processes were studied using square wave voltammetry and open circuit chronopotentiometry. The products of the different reduction processes were identified using XRD. The XRD results indicated that three different Al-Cu intermetallic compounds, Al 4 Cu 9 , AlCu, and Al 2 Cu, were obtained using electrochemical deposition in the molten salt system.
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Songmao Zhang,Yichun Wang,Yawen Li,Manhui Wei,Keliang Wang
Primary quasi-solid Al-air batteries with hydrogel have attracted increasing research attention owing to their high energy density , ionic conductivity , good handling and safety. However, a severe corrosion at open-circuit potential destroy the lifespan and performance of discharge. Suppressing the corrosion of Al anode at standby is of great importance. Here, we present a coating hydrophobic membrane on Al surface to restrain open-circuit corrosion, where the hydrophobic property of the protective membrane is analyzed by contact angle test , changing from 22.48 to 149.48°. The results of electrochemical polarization measurement demonstrate that the corrosion inhibition efficiency of the hydrophobic membrane are 81.6%. Also, the discharge performance of assemble quasi solid Al-air batteries are revealed, and compared with pure Al electrode, the lifetime and special capacity of coated Al electrode is enhanced, expressing special capacity of 1126 mA h g −1 at 10 mA cm −2 and a power density of 36.3 mW cm −2 . Meanwhile, the lifespan of coated Al electrode is approximately prolonged by 34% at interval discharge mode . This work demonstrates a hydrophobic membrane on Al-electrode opens up a prospect of a corrosion inhibition for Al-air batteries.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）