CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Liangmin Ning,Shuai Li,Shiyan Sheng,Jiuheng Ma,Jiawen Wang,Tianyu Zhang,Shun Wang,Jingyi Han,Jiaoyang Wang,Wei Chen,Meng Gao,Kunhua Wang,Min Fu,Hao Yu
Addressing the key challenges of controllable hydrogen transfer and directional C O bond activation in Meerwein-Ponndorf-Verley (MPV) reactions, this study constructed a Pt-CuO/Al 2 O 3 catalyst featuring Pt δ- Lewis acid-metal pairs for selective hydrogenation of biomass-derived furfural via the MPV reduction pathway. Under optimized conditions, the catalyst achieved 99.9% conversion with 98.0% selectivity. Density functional theory (DFT) analysis revealed that compared to isolated Pt, the d -band center of Pt in Pt-CuO/Al 2 O 3 shifts downward by 0.14 eV, while the d -band center of Cu shifts upward by 0.28 eV. Combined with the distinct metal-support interactions observed in EXAFS spectra, these results confirm that d -band center modulation creates a synergistic electronic structure of Pt δ– Cu δ+ : the upshifted d -band center of Cu δ+ enhances oxygen affinity, promoting co-adsorption of carbonyl and hydroxyl groups and facilitating six-membered ring transition state formation, while the downshifted d -band center of Pt δ- optimizes hydrogen transfer through interfacial electron transfer (Cu → Pt). These findings demonstrate the stable coordination environment of these Lewis acid-metal pairs. This work reveals the synergistic mechanism of Pt δ– Cu δ+ active sites and elucidates the cooperative “metal electron enrichment-oxide electron deficiency” effect in MPV reactions, providing new insights for designing highly efficient and selective biomass hydrogenation catalysts.
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JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Hui Wen,Zhiyu Liu,Wei Qu,J. Paul Chen
Reactive nanofiltration (NF) systems that couple polyamide NF (PA-NF) with advanced oxidation processes reportedly offer a promising route for simultaneous degradation of emerging organic pollutants and desalination. However, their performance is constrained by limited catalytic activity, mass-transfer barriers, and trade-off between permeability–selectivity. Here, we develop a high-performance catalytic PA-NF membrane by introducing a layered double hydroxide (LDH) interlayer with the aim on creation of nanoconfined spaces within the internal membrane structure for enhancement in oxidant activation and mass transport. It was found that the interfacial polymerization by restricting amine diffusion can effectively be regulated, yielding a thin, defect-free PA layer enabling fast water transport and precise ion selectivity. The nanoconfinement with peroxymonosulfate markedly boosts oxidant delivery and electron-transfer efficiency, accelerating radical generation. Hence, the catalytic LDH-interlayered PA-NF membrane exhibited high water permeance (34.8 L/(m 2 ·h·bar)) and excellent ion selectivity, while simultaneously achieving nearly 100% atrazine degradation with a rate constant of 0.034 min −1 , far outperforming non-confined systems, even under natural organic matter and ionic interference. This work would provide a better solution for design of cost-effective materials for next-generation reactive NF technologies and sustainable water and wastewater treatment.
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INTERNATIONAL JOURNAL OF FOOD PROPERTIES
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2026
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IF 3.9
Nian Cao,Yubo Yang,Xiaoling Xiong,Bohan Zhang,Ping Xiang,Fan Yang
This pioneering study investigated the effects of sip volume on sensory perception and drinking comfort during the consumption of Jiangxiangxing Baijiu (JB). Six sip volumes (6, 9, 12, 15, 18, and 20 mL) were tested with 30 participants (15 males and 15 females). Results revealed gender-specific preferences: females tended to prefer sip volumes of 9–12 mL, while males were more likely to favor 18 mL. Using Temporal Dominance of Sensation (TDS) and Check-All-That-Apply (CATA) methods, it was found that oral sensations of sweetness and sauce flavor, as well as post-pharyngeal sensations of “smoothness,” “mellowness,” and “lingering aftertaste,” enhanced drinking comfort. In contrast, oral sensations of spiciness and bitterness, along with post-pharyngeal sensations of “pungency,” “thinness,” “blandness,” and “momentary aftertaste,” impaired comfort. Notably, females may place greater emphasis on oral perception, whereas males could focus more on post-pharyngeal sensations. A novel flavor analysis identified 20 key compounds that influence JB perception. The insights from this research provide valuable contributions to improving the drinking experience of JB.
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CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.2
Xin Liu,Yezhou Yang,Jingru Yang,Maodi Wang,Qihua Yang
The selective hydrogenation of furfural (FAL) to furfuryl alcohol (FOL) over Ni catalysts offers a sustainable route for biomass valorization. However, the conventional Ni catalysts suffer from poor selectivity in FAL hydrogenation. Herein, we report that the moderate Fe doping in Ni/TiO 2 significantly enhances selectivity without compromising catalytic activity for the selective hydrogenation of FAL to FOL. Notably, Ni/Fe-TiO 2 catalyst with Fe content ≥ 4.9 wt% maintained > 90% selectivity toward FOL at nearly 100% conversion, whereas Ni/TiO 2 achieved only 38% under the identical condition. Combined experimental and theoretical studies revealed that the enhanced catalytic performance of Ni/Fe-TiO 2 originates from the dilution of contiguous Ni sites by Fe, which suppresses the further hydrogenation of FOL. Moreover, Fe sites exhibited a stronger affinity for carbonyl groups compared to Ni(0), indicating complementary role where Ni(0) primarily facilitates H 2 dissociation, while Fe sites play a critical role in carbonyl activation. These findings underscore the superior synergistic effect of bimetallic systems in promoting selective functional group transformation.
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Polymers
·
2026
·Vol. 18
·期 5
·
IF 5.8
Guangbing Wan,Wenjing Cao,Dongmei Zhao,Kaizhen Wan,Minxian Shi,Zhixiong Huang
To address the critical limitation of insufficient high-temperature structural stability in traditional formaldehyde-resorcinol aerogels for thermal protection applications, this study designed and fabricated a high-silica fiber felt-reinforced phenolic aerogel composite capable of in situ ceramization. The thermal insulation performance, structural stability, mechanical properties, and oxidation resistance mechanism after heat treatment at 1000 °C for 600 s were systematically investigated. Results demonstrated tunable density (0.398–0.629 g·cm−3), low room-temperature thermal conductivity (0.0414 W·m−1·K−1), and a stabilized back temperature of 408.6 °C during butane torch flame testing. After high-temperature treatment, the composite series exhibited a minimum volume shrinkage of 13.9% and a maximum mass retention of 77.6%. Specifically, the compressive strength and specific strength of the HS/C-75 sample reached 4.39 and 1.96 times those of the HS/C-0 sample, respectively. Further analysis revealed that the synergistic effect between the skeletal support of high-silica fibers and the in situ-formed ceramic phase effectively suppressed thermal shrinkage and improved oxidation resistance, achieving an optimized balance between thermal insulation and mechanical integrity. This work provides a theoretical foundation and viable technical pathway for developing advanced thermal protection materials with enhanced stability and reliability.
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ENERGY & FUELS
·
2026
·Vol. 40
·期 29
·16013-16022
·
IF 6
Wang Tianwei,Lu Rongwen,Zhang Shufen
Furfural is a prominent biomass-derived platform compound.
Catalytic
transfer hydrogenation enables the hydrogenation of furfural without
external hydrogen. In this regard, alumina microspheres combining
unsaturated aluminum sites, surface acid–base sites, and hierarchical
pore structure represent potential catalysts for this process. Herein,
hierarchically structured flower-like alumina microspheres (FAMS)
with precisely modulated surface properties were synthesized via a
surfactant-directed strategy. A comparative study of microspheres
synthesized with structurally different surfactants revealed that
flower-like alumina microspheres prepared using the double-hydrophobic
tail surfactant AOT exhibited expanded mesopores, an enriched penta-coordinated
aluminum (Al V ), and superior acidic site density. Meanwhile,
the linear cationic CTAB can generate more basic sites on FAMS. In
the CTH of furfural to furfuryl alcohol, FAMS-AOT achieved a maximum
overall reaction rate and complete furfural conversion to furfuryl
alcohol within 2 h at 150 ° C. Comparisons with other surfactant-derived
FAMS indicate that a higher absolute Al V relative content
drives the macroscopic reaction rate, while the surface basic sites
prompted acid–base synergy to improve TOF. This work provides
a facile and promising pathway for the surface modulation of alumina
microspheres toward the conversion of furfural into furfuryl alcohol.
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CHINESE JOURNAL OF CATALYSIS
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2026
·
IF 17.2
Han Xiang,Lu Lin,Yu Li,Qisong Yi,Chaoran Jiang,Rui Chen,Yuanshuai Liu,Na Sai,Jinlu He,Fenghua Bai,Wenhao Luo
Selective hydrogenation of furfural (FFL) to furfuryl alcohol (FAL) represents a pivotal paradigm in sustainable biomass valorization. In this work, nanoscale Cu clusters were encapsulated in silicalite-1 (S-1) zeolite using in-situ synthesis, and further modified by a rare-earth element of La for regulating the catalyst microenvironment. The obtained La-Cu@S-1 can provide an enhanced performance in the FFL-to-FAL transformations, with 98.6% conversion of FFL and 99% selectivity of FAL at 110 °C, 20 bar H 2 , and 3 h. Besides, La-Cu@S-1 shows a good stability without apparent catalyst deactivation upon four consecutive runs. Extensive characterization research reveals that La addition could provide anchoring sites for Cu nanoclusters via an enhanced electronic interaction, thereby effectively suppressing metal leaching and agglomeration during the liquid-phase catalysis. Additionally, La addition could modulate the zeolite microenvironment of encapsulated Cu nanoparticles and notably stabilize the conventionally unstable Cu + species at a high proportion, even in a reductive H 2 atmosphere during catalysis, accounting for the enhanced activity and stability. This study showcases La modification as an efficient approach to rationally develop metal-zeolite combinations with enhanced performance, promoting potential utilization and development of rare-earth elements in the valorization of biomass and other renewable energy.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Siyu Zhou,Wanni Liu,Dongqi Liu,Xian Shi,Kai Huang,Feng Jiang,Hui Gao,Haian Xia,Ying Guan,Siquan Xu
Efficient catalytic conversion of cellulose into 5-hydroxymethylfurfural (HMF) remains challenging and arouses concern. In this study, iron phosphate (FePO 4 ) was embedded into the SBA-15 mesoporous silica matrix as an available active phase via ultrasound-assisted implantation, and then the abundant silanol nests were utilized to graft sulfonic acid groups to construct an innovative FeP@SBA-15-S catalyst. Through a systematic analysis of the characteristics of crystal, texture, element valence, acidity, hydrophilicity, etc., it was reflected that FeP@SBA-15-S catalyst gave the active FePO 4 component porosity and exhibited bifunctional acidity. Without pretreatment and other acid additives, FeP@SBA-15-S catalyzed cellulose under optimal conditions provided a desired HMF yield of 52 %. More meaningfully, the cellulose and hemicellulose components in native wheat straw could be catalyzed simultaneously by FeP@SBA-15-S catalyst, yielding 61 % HMF and 60 % furfural in one-pot. The cyclability evaluation showed that the FeP@SBA-15-S catalyst still had considerable activity after six continuous runs, with a slight loss in activity attributed to the leaching of active components and pore coverage. A clear catalytic pathway was summarized by GC-MS and 13 C NMR spectrum as cellulose undergoing glucose monomer ring opening, isomerization to fructose, fructose ring closure and final dehydration, and the by-products were also detected as mainly C 3 -C 23 fragments and oligomers.
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C-Journal of Carbon Research
·
2025
·Vol. 11
·期 3
·41
·
IF 2.9
Haibo Ouyang,Jiyong Liu,Cuiyan Li,Tianzhan Shen,Jiaqi Liu,Mengyao He,Yanlei Li,Leer Bao
Using low-cost transition-metal chlorides and furfuryl alcohol as raw materials, the (TiZrHfNbTa)C precursor was prepared, and a three-dimensional braided carbon fiber preform (C/C) coated with pyrolytic carbon (PyC) was used as the reinforcing material. A C/C-(TiZrHfNbTa)C composite was successfully fabricated through the precursor impregnation pyrolysis (PIP) process. Under extreme oxyacetylene ablation conditions (2311 °C/60 s), this composite material demonstrated outstanding ablation resistance, with a mass ablation rate as low as 0.67 mg/s and a linear ablation rate of only 20 μm/s. This excellent performance can be attributed to the dense (HfZr)6(TaNb)2O17oxide layer formed during ablation. This oxide layer not only has an excellent anti-erosion capability but also effectively acts as an oxygen diffusion barrier, thereby significantly suppressing further ablation and oxidation within the matrix. This study provides an innovative strategy for the development of low-cost ultra-high-temperature ceramic precursors and opens up a feasible path for the efficient preparation of C/C-(TiZrHfNbTa)C composites.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Feilin Lin,Wenqi Qin,Kaidi Guo,Jianzhong Jiang
Aqueous two-phase system (ATPS) is widely used in biotechnology owing to their excellent permeability, affinity partitioning, biocompatibility, and mild all-aqueous conditions. However, their extremely low interfacial tension renders them vulnerable to droplet collisions and prone to stratification, resulting in poor stability and low utilization efficiency. Herein, we report an ultra-stable water-in-water ( W /W) emulsion gels derived from an ATPS, using dextran/poly(ethylene glycol) as the template and chitosan (CS) as the emulsifier. The CS molecules were conjugated with 2-furaldehyde (FAL) via imine bonds, enabling the formation of emulsion gels within 2 min. The W /W emulsion gels exhibited no macroscopic phase separation for up to 6 months, and withstood low/high temperatures (−18 °C/70 °C) as well as centrifugation (6000 rpm, for 40 min). They also showed sprayability and excellent physicochemical properties, which effectively alleviated retention and coverage issues by reducing fragmentation and enhancing local pinning and wetting processes. With mangoes used as a model system, microbial proliferation on mango surfaces was significantly inhibited after spraying with the W /W emulsion gels, achieving a 99.8 % antibacterial inhibition rate and reducing mango decay by 46.0 %. This work presents a promising strategy for developing scalable, low-cost, biodegradable, and eco-friendly antibacterial preservation systems.
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PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Xi Cheng,Qingge Feng,Dachao Ma,Yuan Qi,Lin Feng,Fanghong Qin,Xiaodie Cheng,Xu Zeng
A novel organosolv pretreatment method using solid acid CH₃-SBA-15-SO₃H as a catalyst was developed to overcome the challenges posed by lignin and hemicellulose in rice husk to cellulose conversion, thereby improving the yield of levulinic acid. Through systematic optimization of pretreatment conditions, complete removal of lignin and substantial reduction of hemicellulose from rice husk were achieved within only 40 min at 150 °C, with a minimal cellulose loss of merely 4.8 %. In the γ-valerolactone/water co-solvent system, the presence of both hemicellulose and lignin was found to reduce the yield of levulinic acid. By adopting a two-step process with rice husk as the feedstock, the yield of levulinic acid was significantly increased by 1.77 times. These findings deepen our understanding of biomass conversion and highlight the promising application prospects of solid acid catalysis in sustainable chemical synthesis.
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TOPICS IN CATALYSIS
·
2025
·
IF 3
Du Qilong,Jiang Yuanguang,Fu Dandan,Yuan Kun,Nie Xuliang,Hou Dan,He Lu,Chen Jing,Wu Suqin,Xiong Wanming
Imidazolium-based hexafluorophosphate ionic liquids (ILs) have attracted widespread interest due to their unique physicochemical properties. Accordingly, in this work, four kinds of diimidazolium hexafluorophosphate ILs with different cation structures were synthesized and characterized. Moreover, their stability (e.g., thermal stability, oxidation-reduction stability, and acid-base stability), and catalytic performance in furfural coupling were systematically explored to elucidate the correlation between their physicochemical properties and cation structures. Thermal stability results showed no weight loss within 250 °C, and the cations in ILs with shorter R-groups or linked via an alkyl carbon chain correlated with better thermal stability. Moreover, the conventional oxidation-reduction stability of the ILs was not desirable, but they displayed promising electrochemical stability. Among them, the cations with longer R-groups or linked via the phenyl group were correlated with a wider window of electrochemical stability. Notably, they also displayed a correlation with better acid-base stability, and more resistance to alkaline environments (pH = 13) compared to acidic environments (pH = 1). Furthermore, ILs could also realize furfural coupling with a 60.48% furoin yield in an alkaline environment. Overall, the correlation between the cation structures of ILs and their physicochemical properties was revealed, and the ILs with longer R-groups or linked via the phenyl group displayed better prospects. This work may provide insights into the future design and application of ILs.
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