GREEN CHEMISTRY
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2025
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IF 9.2
Enhui Du,Mingxin Lv,Hongli He,Zhilin Chen,Jie Yang,Liyuan Huai,Yuxiang Chen,Jian Zhang
Exciting opportunities in biomass catalytic conversion have spurred extensive research and development into the chemical utilization of 5-hydroxymethylfurfural (HMF) and its derivatives. In this study, we achieved the efficient base-free aerobic oxidation of HMF-derived tetrahydrofuran-2,5-dimethanol (THFDM) to tetrahydrofuran-2,5-dicarboxylic acid (THFDCA) on Pt/OMS-2 catalyst, offering a potential alternative to petroleum-based 1,4-cyclohexanedicarboxylic acid (CHDA). Oxygen vacancies on the catalyst support played a crucial role in the oxidation process by enhancing surface lattice oxygen mobility and facilitating the oxidation of THFDM via the Mars-van Krevelen (MvK) mechanism. This in-depth exploration of bio-based products presents a promising avenue for the production of high-value building blocks.
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npj Science of Food
·
2025
·Vol. 9
·期 1
·1-8
·
IF 7.8
Luo Yingting,Li Yuxin,Song Xuening,Wang Yuzhuo,Liu Simiao,Ren Fazheng,Zhang Hao
Coenzyme Q10 (CoQ10) plays a vital role in aerobic respiration and cardiovascular diseases; however, its application is limited owing to poor water solubility. In this study, equimolar CoQ10 and stevioside (STE) formed a co-amorphous (CM) system by lyophilization, and its solubility was approximately 63 times higher than that of CoQ10. Through crystal, thermodynamic, and morphological characterization of the formula, the formation of the CM system was confirmed. The intermolecular interactions were investigated by spectroscopies. The relationship of 8 intermolecular interaction sites between the two was confirmed via molecular dynamics simulation, firmly indicating the strong intermolecular forces. Further, CM products remained stable even under accelerated storage conditions, equivalent to 1 year at room temperature. Meanwhile, the area under curve (AUC) values increased by 5 times in the in vivo bioavailability study. In conclusion, the CoQ10 was transformed into an amorphous structure by initially employing STE through intermolecular interactions to enhance solubility.
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PubMed
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CATALYSIS LETTERS
·
2026
·Vol. 156
·期 3
·75
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IF 2.5
Huang Haiyun,Chen Lungang,Zhang Xinghua,Zhang Qi,Zhuang Xiuzheng,Ma Longlong
Effective utilization of lignocellulosic biomass as value-added fuels and chemicals is of great significance for achieving the dual goals of sustainable biorefinery and carbon neutrality. Here, Ni-WOx@C catalysts were synthesized for efficiently catalytic conversion of cellulose into ethylene glycol (EG). The catalyst was prepared through a one-step pyrolysis method by using citric acid and SiO 2 as the carbon source and structural template, respectively. A series of controlled experiments demonstrated that the pyrolysis temperature and the particle size of the SiO 2 template significantly affected the physicochemical properties of the catalyst, including the surface morphology, active sites provided by the loaded metals, and the distribution of Lewis acid sites. The optimized catalysts of Ni-WOx@C 600−2 , which was prepared by the pyrolysis at 600 °C with a 2 μm SiO 2 template, delivered the best performance characterized by its high specific surface area (124.86 m 2 /g), well-defined pores, as well as the cooperation between metallic species and Lewis acid sites. Under the optimized reaction conditions (220 °C, 4 MPa H 2 , 3 h), this as-prepared catalyst achieved nearly complete cellulose conversion (> 99%) and EG yield of 60.1%. Generally speaking, the design of Ni-WOx-based catalyst provides new insight for effective catalysis and has considerable application potential in cellulose conversion. Graphical
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 13.2
Xiaobin Zhou,Ting Zou,Yunqiong Tang,Shengpeng Mo,Yinming Fan,Bihong Lv,Yanan Zhang,Dunqiu Wang,Yinian Zhu,Zongqiang Zhu,Guohua Jing
Despite the advantages of low regeneration energy and corrosiveness, the CO 2 absorption loading capacity and regenerability of non-aqueous absorbents (NAAs) must be advanced to enable their viable practical application. This study introduced an innovative dual-activator strategy employing a tertiary amine and an alcohol to enhance both absorption and regeneration performance in primary amine–based NAAs. Experimental results showed that incorporating an appropriate amount of the tertiary amine N,N -dimethylethanolamine (DMEA) increased the CO 2 loading of the diamine 3-methylaminopropylamine (MAPA) to 1.54 mol·mol −1 MAPA, a 43.9% increase over the system without DMEA, while the addition of n-propanol (NPA) enabled highly efficient regeneration with 99.74% efficiency, a 27.2% improvement compared to the system without NPA. The absorbent also exhibited excellent cycling stability, maintaining 94.16% regeneration efficiency after five cycles. Mechanism investigations revealed that DMEA preferentially facilitated in the deprotonation of the MAPA-zwitterion during absorption, increasing the availability of free MAPA for CO 2 uptake and ultimately enhancing CO 2 absorption. During desorption, NPA served as a proton shuttle that redirected the proton transfer from a direct route to an indirect one via itself (protonated amine → NPA → MAPA-carbamate), significantly reducing the energy barrier. Meanwhile, NPA also participated in intermolecular proton exchange with the resulting carbamic acid, effectively promoting its thermal decomposition. Thermodynamics and corrosion analyzes confirmed that the optimized MAPA-DMEA-NPA system required only 0.43 GJ·ton −1 CO 2 in sensible and latent heat, 79.1% lower than the 30 wt% MEA solution, and exhibited negligible corrosiveness (2.5 × 10 −4 mm·year −1 on carbon steel). This work presented an effective dual-activator approach for designing high-performance NAAs with superior CO 2 capacity and regeneration stability, providing a promising pathway for advancing energy-efficient CO 2 capture technologies.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.3
Zhe Bai,Ruichen Liu,Zehao Dong,Tianren Zhang,Xiangwen Zhang,Guozhu Li
Selective hydrodeoxygenation (HDO) is one of the most effective ways to convert renewable biomass to high-value chemicals and fuels. Co-doped MoS2 exhibited high selectivity of C–O bond cleavage, but its activity should be simultaneously improved for efficient aromatics production. In this work, CoS-MoS2 nanoflowers with in-plane heterostructures are synthesized by a one-pot solvothermal method using lactic acid as an organic regulator for efficient and selective hydrodeoxygenation. A series of characterization methods illustrate that the introduction of lactic acid promotes the dispersion of CoS phase on MoS2 and formation of active CoS-MoS2 heterostructures. The results of H2-TPD and H2-TPR show that the as-prepared catalyst exhibits enhanced hydrogen adsorption and dissociation capabilities. Density functional theory (DFT) calculations demonstrate that the heterointerface between CoS and MoS2 effectively facilitates hydrogen activation, thereby improving the catalytic performance of hydrogenation. In the hydrodeoxygenation of diphenyl ether (DPE) at 300 °C and 4 MPa, CoS-MoS2-LA-1.0 exhibited a DPE conversion of 99.5% and a benzene selectivity of 97.2% in 4 h. Moreover, the catalyst exhibited excellent durability under harsh reaction conditions.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9
Zhiyi Li,Xujia Mu,Wei Wei,Zhijun Liu
To overcome the limitations of conventional ionic liquid-based CO 2 absorbents—namely high regeneration energy consumption and low absorption capacity—a novel biphasic dual-functionalized ionic liquid system, [AEPH][Im]/NPA/H 2 O, was synthesized and evaluated. Initially homogeneous, the system undergoes spontaneous phase separation upon CO 2 absorption, forming distinct lean and rich phases. At saturation, the rich phase accounted for 53.00% of the total volume, with a viscosity of 15.75 mPa·s and a CO 2 loading capacity of 3.43 mol·L −1 . The system exhibited a high regeneration efficiency of 83.42% at 393.15 K, and the regenerated phases could be recombined into a uniform solution. After six absorption-desorption cycles, the absorbent retained 96.39% of its initial capacity, with only a 1.32% decline in desorption efficiency. The 13 C NMR analysis and DFT calculations revealed that CO 2 primarily reacts with [AEPH][Im] to form carbamate, carbonate, and bicarbonate species, which are predominantly concentrated in the rich phase, while only unreacted components remain in the lean phase. NPA facilitates the formation of alkyl carbonates via reaction with carbamates, and the high concentration of bicarbonate significantly enhanced desorption efficiency. The total regeneration energy consumption was calculated to be as low as 1.58 GJ·t −1 CO 2 —markedly lower than that of traditional MEA-based solvents. The [AEPH][Im]/NPA/H 2 O biphasic system demonstrates superior cyclic stability, high CO 2 capture capacity, and low energy demand, presenting a promising alternative for industrial-scale carbon capture applications.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Yuhang Lu,Yanyi Liu,Weichen Wang,Ruyi Lu,Jin Zhang,Wei Xi,Xijun Liu,Jia He
The poor durability and insufficient activity of platinum-based catalysts, caused primarily by intermediate poisoning and structural degradation, are major obstacles to direct methanol fuel cells. In this study, we demonstrate that the strategic doping of Au atoms into a PtPdCuCoNi high-entropy alloy (HEA) aerogel effectively addresses these dual challenges. The incorporation of Au induces lattice strain and modulates the electronic structure, as confirmed by X-ray diffraction and photoelectron spectroscopy. This electronic redistribution results in a downshift of the d-band center, which optimizes the adsorption energy of key intermediates. Electrochemically, the Au-doped PtPdCuCoNi HEA aerogel exhibits exceptional activity for the alkaline methanol oxidation reaction (MOR), achieving a mass activity of 16.38 ± 0.61 A mg −1 Pt and a specific activity of 75.89 ± 1.21 mA cm −2 , surpassing its Au-free counterpart and commercial Pt/C by factors of 1.5/4.0 and 1.2/9.4, respectively. More importantly, the catalyst shows significantly enhanced durability, a performance markedly superior to its Au-free counterpart. In situ infrared spectroscopy reveals that Au doping steers the MOR pathway towards direct formate oxidation, effectively suppressing the formation of CO poisoning species. In direct methanol fuel cell environment, the PtPdCuCoNiAu HEAAs achieved a peak specific power of 308.2 mW/mg Pt , exceeding the data reported in current literatures. This work highlights the critical role of targeted element doping in designing high-entropy alloy catalysts with combined high activity and durability for advanced energy conversion.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122217
·
IF 7.5
Yingnan Ma,Zhen Xu,Renjie Huang,Yulu Zhang,Jihong Tian,Zijian Zhang,Shuyan Meng,Panliang Zhang,Kewen Tang
Efficient CO 2 separation is pivotal to lowering the energy consumption and costs of carbon capture, utilization, and storage (CCUS), and thin-film composite membranes (TFCMs) with high permeance have emerged as a preferred solution for carbon neutrality and global climate change mitigation. Polyethyleneimine (PEI) exhibits excellent CO 2 adsorption capability owing to its unique amino structure, however, its excessive accumulation on the substrate surface and pore penetration lead to an overly thick functional layer, which significantly impairs the gas permeability of TFCMs. This work successfully developed a novel ultrathin polyethyleneimine (PEI) composite membrane based on MOFs nanosheets gutter layer via interfacial polymerization. Benefiting from the significant improvement of the surface properties of substrate by the MOFs nanosheets gutter layer, the prepared PEI functional layer exhibited an ultrathin thickness less than 135 nm with a highly ordered structure. The CO 2 permeance reached 779.6 GPU, with excellent selectivities of 59.1 for CO 2 /N 2 and 54.1 for CO 2 /CH 4 . The resulting TFCMs demonstrated excellent CO 2 separation performance, surpassing the 2008 and 2019 upper bound while maintaining long-term separation stability. The study provided new insights into the precise design and controllable preparation of gas separation membranes, offering valuable reference for the industrial development of high-performance CO 2 separation membranes.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Jiehao Qu,Jicheng Li,Guang Yang,Nianzhao Gao,Xiangdong Liu
Poly(methyl methacrylate) (PMMA) possesses high optical transparency but suffers from insufficient mechanical strength. Most toughening methods compromise optical clarity, processability, or industrial scalability. Herein, we present a scalable toughening strategy based on copolymerization of methyl methacrylate (MMA) with 2-hydroxyethyl methacrylate (HEMA), combined with transesterification between their units. The resulting random MMA-co-HEMA copolymers retain excellent visible-light transmittance (above 90.0%, 5 mm) while achieving remarkable mechanical enhancements, including increases of 74% in tensile strength and 22% in impact strength compared with linear PMMA. Further studies reveal that the transesterification between HEMA and MMA units induces a lightly cross-linked network. This approach not only offers advantages in simplicity, cost-effectiveness, and compatibility with industrial processes such as casting molding, but also effectively prevents uncontrollable autoacceleration during bulk polymerization. These findings provide new insights for the designing of high-performance optical thermoplastics with promising potential in structural optical applications.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2025
·
IF 2.1
Bin Ou,Xiaofang Li,Lemei Huang,Yujiang Ke,Chaohui Che,Xiaobing Liu,Yajun Li,Kui Wu
The solubility of 2-chlorocinnamic acid in 16 pure organic solvents, including alcohols, esters, ketones, toluene, and acetonitrile, was determined by the gravimetric method at 272.15–321.55 K under 101.3 kPa. Results showed that solubility of 2-chlorocinnamic acid increased with temperature in all solvents. To correlate the experimental data, five thermodynamic models, i.e., the modified Apelblat, Buchowski–Ksiazaczak λh, NRTL, Wilson, and Yaws equations, were employed. Model accuracy was evaluated using average relative deviation (ARD) and root-mean-square deviation (RMSD), and all models provided satisfactory correlations. In addition, electrostatic potential energy surface analysis was carried out to preliminarily assess possible solute–solvent interactions, while density functional theory (DFT) calculations were used to further examine molecular interactions during dissolution. The Kamlet–Abboud–Taft linear solvation energy relationship (KAT-LSER) model was applied to analyze solvent effects. Thermodynamic functions, including enthalpy, entropy, and Gibbs free energy of mixing, were calculated using the Wilson model. The results revealed that the dissolution of 2-chlorocinnamic acid in the studied solvents is an endothermic, entropy-driven, and spontaneous process, indicating favorable solute–solvent interactions and enhanced solubility at higher temperatures.
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ACS Sensors
·
2025
·
IF 9.1
Zhihua Zhao,Shuhan Chen,Huiqin Li,Lan Wu,Zhigang Shao,Qilin Zou,Zhikun Wang
Triethylamine (TEA) is a colorless organic liquid known for its high volatility that poses significant irritation to the human respiratory tract; meanwhile, TEA can be released from decaying fish, which can be monitored by a gas sensor. However, conventional TEA gas sensors typically require high operating temperatures, leading to a substantial energy consumption. To address food safety concerns and promote environmental sustainability, the advancement of a TEA sensor that works at room temperature is urgently needed. In our work, an FeWO4/f-MWCNTs-3 chemoresistive gas sensor was fabricated by the hydrothermal method, integrating FeWO4 with multiwalled carbon nanotubes treated with mixed acids (f-MWCNTs). The sensor demonstrates superior performance, owing to its elevated specific surface area, total pore volume, and synergistic effect of p–p heterojunctions. FeWO4/f-MWCNTs-3 demonstrates excellent reproducibility, moisture resistance, stability, a minimal detection threshold of 1 ppm, and relatively rapid response/recovery times of 15/63 s. It attains a 113% response at 100 ppm of TEA at 25 °C. The applicability of FeWO4/f-MWCNTs-3 for assessing fish freshness via TEA concentration analysis from pomfret fish stored at ambient temperature for 14 days was validated, indicating its significance in fish freshness detection methodologies. Additionally, the gas-sensing mechanism of this sensor was further explored using density functional theory (DFT).
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PubMed
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zehui Shang,Chunying Zhu,Taotao Fu,Youguang Ma
A liquid-liquid AEP/DEEA/n-butanol/H 2 O absorbent is developed. • Multi-variable optimization of absorption and desorption is performed. • NMR reveals carbamate and bicarbonate/carbonate absorption pathways. • Desorption energy AEP/DEEA/n-butanol/H 2 O is 66% of that of 30 wt% MEA/H 2 O. High regeneration energy remains a major obstacle to the practical application of alkanolamine-based absorbents for CO 2 capture. To reduce the regeneration energy demand, a liquid-liquid phase-change absorbent composed of polyamine 1-(2-aminoethyl)piperazine (AEP), 2-(diethylamino)ethanol (DEEA), n-butanol and H 2 O was developed. The effects of composition and operating conditions on the absorption–desorption performance were systematically investigated, identifying 1.8:1.2 AEP/DEEA, 4:3 n-butanol/H 2 O, 30 wt% total amine, and 303.15 K as suitable microchannel absorption conditions. 13 C and 1 H NMR analyses showed that AEP mainly absorbed CO 2 via the carbamate pathway, whereas the tertiary amine site of AEP and DEEA mainly promoted CO 2 hydration to form HCO 3 − /CO 3 2− . Under the optimal composition of 18 wt% AEP, 12 wt% DEEA, 40 wt% n-butanol, and 30 wt% H 2 O, the volume fraction and CO 2 loading of the rich phase reached 48.68% and 3.42 mol CO 2 ·kg −1 solution, respectively. Under desorption at 363.15 K with 2 mL lean-phase addition for 60 min, the desorption efficiency and cyclic capacity reached 58.91% and 1.95 mol CO 2 ·kg −1 solution, respectively, while the apparent desorption energy consumption was only 66% of that of 30 wt% MEA. Overall, this phase-change absorbent achieved effective synergy among rapid absorption, reversible regeneration, and phase-separation intensification, demonstrating its potential for low-energy CO 2 capture.
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