ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Shuang Wei,Sheng Zhong,Chao Bao,Linbo Huang,Kexin Li,Ruirui Wang,Bin He,Ruirui Zhang,Ruixia Liu
The selective electrocatalytic oxidation of glycerol to high-value C2–C3 chemicals offers a promising approach to glycerol overproduction, while it struggles with precise C–C cleavage and limited selectivity from multiple pathways. Regulating the adsorption capacity of glycerol oxidation intermediates and the degree of C–C bond cleavage through the interfacial electronic structure of electrocatalysts is crucial for controlling C2–C3 selectivity. Herein, a self-supported p-n heterojunction catalyst (Co3O4/CeO2) is developed for the efficient electrocatalytic oxidation of glycerol to C2 chemicals, achieving a glycolic acid selectivity of 42%, with a yield of 19.6 μmol cm–2 h–1. The built-in electric field enables rapid interfacial charge transfer from CeO2 to Co3O4, which leads to the upshifted d-band center of active Co3O4. Electrochemical characterization and theoretical calculations demonstrate that the heterojunction promotes the adsorption of hydroxyl species and glycerol, thereby enhancing the activity of the glycerol oxidation reaction (GOR). Concurrently, the optimized electron cloud distribution of Co3O4 active sites strengthens the adsorption of oxygen-containing intermediates while weakening the adsorption of glycolic acid and suppresses the further cleavage of C–C bonds, thus increasing glycolic acid selectivity. This study clarifies the redox kinetic adsorption regulation mechanism of the Co3O4/CeO2 heterojunction catalyst and provides a highly promising electrocatalyst design strategy for the production of high-value-added C2 products via glycerol oxidation.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Zhaoqi Liu,Yaqi Ge,Baochang Dai,Quanwang Feng,Longyu Wang,Xiaoyong Hao,Huiguang Bian,Chuansheng Wang
In order to reduce the reliance of rubber composites on carbon black (CB) and enhance their cost-effectiveness and environmental sustainability, this paper proposes a green, deep eutectic solvent (DES) for surface modification of ground calcium carbonate (GCC). It replaces part of the carbon black with the DES in a natural rubber matrix. The effects of this modification on the vulcanization, mechanical, dynamic and microstructural properties of rubber are systematically investigated. The DES employed consisted of choline chloride and glycerol in a 1:2 M ratio, with the aim of improving the interfacial bonding between GCC and the rubber matrix through the hydrogen bonding network. The results demonstrated that DES-modified GCC could effectively enhance the dispersion of filler, strengthen the crosslink density of rubber, and improve the mechanical properties. In the present study, the replacement of CB with 15 and 20 parts of GCC was investigated, with a particular focus on the tensile strength of the rubber composites prepared with DES-modified GCC in a 1:10 ratio. The results demonstrated a significant enhancement in tensile strength, with an increase of 16.0%, as well as a notable increase in the (TS*EB), reaching 22.6%. Additionally, a substantial reduction in rolling resistance of tyres was observed, amounting to 52.7%. These findings offer a novel approach for the development of environmentally friendly and cost-effective rubber fillers.
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高影响因子
FLUID PHASE EQUILIBRIA
·
2025
·
IF 2.7
Huanhuan Hu,Linyun Luo,Zhongyuan Liu,Lin Tian,Guanjia Zhao
This study focuses on deep eutectic solvent (DES) systems composed of choline chloride and four alcohol-based hydrogen bond donors (glycerol, 1,3-propylene glycol, 1,2-propylene glycol, and 2,3-butylene glycol), with ethanol added at mole fractions ranging from 0 to 1. Experimental measurements of density and viscosity were conducted, and the results were validated using molecular dynamics (MD) simulations based on the GAFF force field and RESP2 charge model. The simulation results closely matched the experimental data, confirming the accuracy of the modeling approach. Radial distribution function and hydrogen bond analyses revealed that ethanol disrupts hydrogen bonds formed between the choline cation (CHO + ) and the anion (Cl − ), between the anion (Cl − ) and the hydrogen bond donor (HBD), and among HBD molecules themselves. Instead, ethanol forms weaker new bonds with CHO + , Cl − , and HBD. Consequently, at ethanol mass fractions of 49%, 53%, 43%, and 40% in the four systems, viscosity decreased by 96%, 88%, 93%, and 93%, respectively. Despite these changes, the overall DES hydrogen bond network remained largely intact. These findings demonstrate that ethanol effectively tunes the microstructure and viscosity of DESs, enhancing their potential for practical applications.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Zhenlong Liu,Yu Liu,Jiayuan Zhang,Ruiyan Zheng,Fangfang Xing,Zunyuan Xie,Guofang Zhang
Nano-sized Co 3 O 4 was stepwise confined into N-doped hollow carbon nanospheres. • Yolk-shell Co 3 O 4 @NHCs exhibits the best catalytic activity for AP pyrolysis. • In situ formed Co 3 O 4 -graphene composite accelerates the deep oxidation of ammonia. • A possible catalytic mechanism for AP combustion was systematically proposed. Transition metal oxides are widely used to catalyze the decomposition of ammonium perchlorate (AP) because of their reversible multivalent redox behavior. However, their catalytic performance is often constrained by particle aggregation and insufficient exposure of active sites. We encapsulate the precursors within nitrogen-rich hollow carbon nanospheres (NHCs) to synthesize core–shell MCo 2 O 4 @NHCs (M = Fe, Co, Ni, Cu, Zn, V, Cr, Mn) composites via our previously reported stepwise confined strategy. Among these, 5 wt% Co 3 O 4 @NHCs + AP exhibits the best catalytic activity, lowering the high-temperature decomposition peak of AP by 151 °C and increasing heat release by 2.13 times compared to pure AP. Kinetic analysis shows that Co 3 O 4 @NHCs significantly reduces the activation energy under the A2 model. Electrochemical tests confirm its superior electron-transfer capability, which facilitates AP decomposition. TG-FTIR-MS/GC reveals that Co 3 O 4 @NHCs accelerates NH 3 oxidation. DFT calculations indicate that the Co 3 O 4 @NHCs surface exhibits the strongest adsorption for both NH 3 and O 2 , promoting NH 3 oxidation by surface active oxygen species to generate NO x . Based on these results, a rational catalytic pathway for AP decomposition is proposed. This work validates the “spatial confinement + interface regulation” strategy and offers new insights into the design of efficient burning rate catalysts. Download: Download high-res image (173KB) Download: Download full-size image
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Food Packaging and Shelf Life
·
2026
·
IF 10.8
Jie Yao,Mengran Zhang,Guohua Zhao,Damao Wang
A bioactive and biodegradable packaging film was fabricated via a solvent-casting method using poly(vinyl alcohol) (PVA) reinforced with alkaline–peroxide treated brewers’ spent grain (BSG-M) and zinc oxide nanoparticles (ZnO-NPs). Alkaline–peroxide treatment was applied to BSG, which is reported to disrupt lignin–carbohydrate associations and promote microfibrillation, yielding a modified lignocellulosic filler containing residual proteins that dispersed uniformly within the PVA matrix, thereby enhancing the tensile performance and soil degradability of the composite films. The incorporation of an optimal ZnO loading (2–3 wt%) facilitated the formation of dense hydrogen-bond networks and increased the tortuosity of the diffusion path. Consequently, the composite films exhibited a UV-B blocking efficiency exceeding 96%, antibacterial inhibition rates up to ∼100% (depending on ZnO loading) against Escherichia coli and Staphylococcus aureus , and a moderate DPPH-radical scavenging activity (approximately 20%). Specifically, the PBZ-3 film (containing 3 wt% ZnO) significantly enhanced the preservation of strawberries during 8 days of storage at 4 °C. Compared with commercial polyethylene (PE) packaging, the PBZ-3 film minimized weight loss to 12.84% and provided superior vitamin C retention and improved visual quality, while maintaining the critical advantage of biodegradability. Furthermore, soil burial tests demonstrated a 54% mass loss within 30 days, confirming a favorable balance between functional performance and biodegradability. These results indicate that the PVA/BSG/ZnO ternary composite film is a promising biodegradable active packaging material with moisture-barrier, UV-shielding, antibacterial, and extract-based antioxidant functions for fresh produce.
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高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.2
Haodong Xie,Yumeng Fo,Hongwei Zhang,Hua Xu,Xiao Zhang,Yingshuo Guo,Runze Li,Ruolin Zhang,Guilin Liu,Xicheng Jia,Jiazhou Li,Yuming Zhang,Meizan Jing,Weiyu Song,Wenhao Luo,Zhijie Wu
Developing efficient Pt-based catalysts is crucial for sustainable lactic acid (LA) production via glycerol oxidation. Herein, we synthesized a series of robust PtIn/Sn-MFI catalysts with low Pt loading of 0.5 wt% for glycerol oxidation under base-free conditions. The PtIn/Sn-MFI catalysts with varying In contents exhibited a volcano-shaped trend between turnover frequency (TOF) and In/Pt molar ratio. Among all tested catalysts, the Pt 0.5 In 1.0 /Sn-MFI sample exhibited the highest catalytic activity (1283 h –1 ), achieving 96.8% glycerol conversion with 73.5% LA selectivity, surpassing the monometallic Pt 0.5 /Sn-MFI catalyst. Furthermore, the Pt 0.5 In 1.0 /Sn-MFI catalyst maintained excellent stability, with no significant degradation in catalytic performance even after five consecutive recycling runs. Experimental analysis and characterizations verified the formation of PtIn 2 nanoalloys, accompanied by electron transfer from In to Pt, which significantly enhanced the catalysts’ O−H bond activation ability, resulting in high activity and selectivity. Combined with kinetic studies and density functional theory calculations, we further revealed that PtIn 2 nanoalloy active sites significantly reduce the activation energy barrier for the dehydrogenation of the secondary hydroxy group in the reaction pathway. This work offers new perspectives on the rational design of cost-effective, high-efficiency catalysts for the sustainable oxidation of glycerol to LA.
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高影响因子
Journal of Food Measurement and Characterization
·
2023
·Vol. 17
·期 4
·3918-3926
·
IF 3.4
Xu Lingfeng,Zou Ying,Wu Kui,Han Runlin,Huang Yanrong,Yi Xiuguang
Effective and non-invasive inspection method toward viscosity is expected to ease the burden of continued increased health problems worldwide. Herein, we proposed that viscosity is one of the most important markers in the liquid microenvironment. Then, a natural product was further developed from resveratrol derivate, polydatin, as an activatable molecular sensor for monitoring liquid micro-environmental viscosity alterations for metamorphic extent determination. This natural molecular sensor was constructed by the single double bond alternating conjugate structure, which can rotate freely in the low viscosity media, and in the highly viscous media, bright fluorescent signals are specifically activated (around 383 nm, 53-fold), endowing the natural sensor with the capacity to avoid autofluorescence from the additives and achieving high signal-to-noise ratio imaging. With the lower detection limit 1.125 cP, the sensor polydatin exhibits higher viscosity sensitive coefficient (0.60), and 75.5 nm of Stokes shift was found in the distilled water. Afterward, polydatin achieved non-invasively identifying the thickening effects of food thickeners. In addition, the capability of polydatin to evaluate the deterioration extent of liquids with viscosity as a robust marker was explored. It was found that the viscosity level in microenvironments is highly dependent on the liquid food metamorphic period. The fluorescent intensity increment and viscosity value changes were fitted into a linear equation. We expected that this approach would reinvigorate the fluorescent analytical methods toward liquid safety inspection.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 24
·2300239
·
IF 19
Ke Wu,Yanyu Cui,Yaping Song,Zhiyan Ma,Juan Wang,Juan Li,Teng Fei,Tong Zhang
Hydrogels are promising materials for electronic skin due to their flexibility and modifiability. Reported hydrogel electronic skins can recognize stimulations and output signals, but the single output signal and the requirement of external power source limit their further applications. In this study, inspired by the neuron system, the self-powered neuron system-like hydrogels based on gelatin, water/glycerin and ionic liquid modified metal organic frameworks (MOFs) are prepared. The optimized hydrogel exhibits excellent adhesion (40 kPa), stretchability (0%–100%), water retention (>92% at 0% relative humidity (RH) atmosphere), ionic conductivity (>10 −3 S m −1 ) and stability (>30 days). Besides, the neuron system-like hydrogels are highly sensitive to pressure (0—10 N) and humidity (0%–75% RH) with dual-modal output, without external power source. Finally, the optimized hydrogel ionic skin is applied in human motion detection, energy harvesting, and low humidity sensing. This study provides a preliminary exploration of self-powered ionic skin for multi-application scenarios.
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高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2023
·Vol. 33
·期 7
·2000-2012
·
IF 4
Gao Die,Zhu Qingqing,Liu Peng,Zhou Qing,Cheng Xiujie,Liu Li,Xu Junli,Lu Xingmei
Proton-type ionic liquids have been proved to be promising for the pretreatment of lignocellulosic biomass, because they can provide high yield cellulase hydrolysis and high lignin removal rate. In this work, three proton-type ionic liquids, ethyl methanesulfonamide (EAM), ethyl amine nitrate (EAN) and ethyl amine acetate (EAN[OAc]), were successfully synthesized to pretreat corn straw, and five sugar platform organic solvents were selected as co-solvents for biomass pretreatment. The experimental results showed that under the optimal pretreatment conditions (10 wt% EAM, 130 °C, 2 h, 7 wt% straw loading in PDO solvent), the delignification rate of corn straw could reach 96 wt%, the sugar yield of cellulose-rich substrate could reach 95 wt% in 96 h, the regeneration rate of lignin dissolved in the solvent was 86 wt%, and the remainder of the solvent was small molecular compound, the hemicellulose dissolved in the solvent is degraded to monomolecular sugars (xylose and arabinose). The XRD, SEM characterization data and spectrograms of cellulosic substrate also fully proved that the lignin was successfully dissolved and separated from corn straw by pretreatment of composite system, and in the remaining straw the content and crystallinity of cellulose was improved. In this paper, density functional theory (DFT) is used to explore the pretreatment principle. From the optimized structure, it can be seen that the interaction energy between the ionic liquid cosolvent system and lignin is higher than that in the pure ionic liquid system. The simulation results, experimental analysis and characterization can effectively explain the essence of the system for efficient straw pretreatment, and the system can provide new ideas for the development of biomass pretreatment.
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DIAMOND AND RELATED MATERIALS
·
2023
·
IF 4.1
Yihua Wang,Dongshan Li,Lunlin Shang,Fu Wang
In this work, the tribological properties of polyhydroxy molecule ascorbic acid as lubricating additive was investigated in graphite-like amorphous carbon film/bearing steel interface under polyethylene glycol lubrication . It was shown that ascorbic acid is an excellent friction modifier in graphite-like carbon film solid-liquid lubrication. The friction coefficient decreased from 0.12 of polyethylene glycol to around 0.02 (83.3 % reduction) of polyethylene glycol with >1 wt% ascorbic acid. Ascorbic acid had a little effect on the wear rate of graphite-like carbon film but promoted the steel ball wear. Ascorbic acid inhibited the oxidation of worn surface of steel ball and induced a more oxidized carbon film surface. The oxidized carbon surface and the increased contact area due to steel ball wear facilitated the adsorption of polyethylene glycol molecules at the sliding interface, which helped to establish fluid lubrication film and thereby resulted in ultra-low friction. This suggests that ascorbic acid is a promising candidate friction modifier to design novel ultra-low friction solid-liquid composite lubrication systems based on amorphous carbon films.
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DESALINATION
·
2023
·
IF 9.9
Xuewu Zhu,Cunxian Lai,Bin Liu,Jun Liu,Daliang Xu,Xiaolong Lu,Daoji Wu,Jingtao Xu,Heng Liang,Xiaoxiang Cheng
The deep role and mechanism of post-treatment in the morphology and performance of thin-film composite (TFC) nanofiltration (NF) membranes have rarely been revealed. In this work, four solutions of pure water, hexane , Na 2 CO 3 , and glycerol were selected for the post-treatment of TFC-NF membranes, and the performances of the resultant NF membranes were systematically investigated. The results showed that the hexane could effectively remove the residual acyl chloride groups and prevent the subsequent second growth of polyamide (PA) layers, thus leading to the formation of smoother and thinner PA membranes with higher water permeance and excellent salt rejections. Hydrolysis and swelling of unstable PA fragments in solutions (water, Na 2 CO 3 , and glycerin) contributed to greater negative charge, higher hydrophilicity , and enlarged pore size. The resultant NF membranes exhibited significantly enhanced water permeance and comparable separation behaviors to the control NF membrane. In addition, the well-constructed NF membranes possessed superior monovalent/multivalent ion selectivity , excellent antifouling, and stability. The mechanisms of the post-treatment on the performance enhancement of NF membranes were proposed from the perspective of interfacial interactions . The facile post-treatment strategy provides new insights into tailoring high-performance NF membranes for water treatment applications.
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高影响因子
ACS Applied Polymer Materials
·
2023
·
IF 5
Muhua Yuan,Haijun Wang,Tong Wang,Haibo Yang,Chunlei Yuan
The high dielectric constant of PVDF is very important for its high-performance energy storage dielectrics, but it is more critical to strike a proper balance between high dielectric constant and low dielectric loss. In this work, deep eutectic solvent (DES) and montmorillonite (MMT) have been used together to prepare γ-phase PVDF composite films with excellent dielectric properties. It is found that DES significantly induces crystallization of γ-phase and increases the dielectric constant of the composite due to the incremental ion motion. Meanwhile, DES greatly promotes the stripping and dispersion of MMT layers, which in turn inhibits the long-range ion migration and therefore suppresses the dielectric loss of the composite to a very low level. The dielectric constant of PVDF/MMT/DES composite films can increase to 32, while the dielectric loss remains as low as 0.06 at 1 kHz. Moreover, the synergistic effect of MMT/DES also contributes to enhancing the toughness and optical transmittance of composite films.
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