POWDER TECHNOLOGY
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2026
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IF 5.5
Jinqiu Fu,Zheng Ren,Huanfa Feng,Jingliang Xu,Wei Zhuang,Hanjie Ying,Pengpeng Yang,Keke Zhang
Solvent effects on L-carnosine spherical aggregates were studied. • Reduced (001) solvent-crystal interaction promotes spherulitic growth. • Tip defects trigger non-crystallographic branching and spherulitic growth. • The spherulitic crystals exhibited superior flow properties. L-carnosine, a biologically active dipeptide with significant antioxidant properties, typically crystallizes in a needle-like habits that result in poor flowability and low bulk density, posing significant challenges for downstream processing. This study provides a new strategy for the preparation and optimization of spherical L-carnosine crystals. Systematic solvent screening identified dimethyl sulfoxide (DMSO) as the optimal antisolvent, enabling the formation of dense, uniform spherulites. The effects of main crystallization parameter on the morphology and properties of the spherical crystals were explored and the optimal crystallization conditions were determined. Molecular dynamics simulations and experimental analyses reveal that DMSO selectively reduces the solvent-crystal interaction energy on the (001) crystal face, accelerating growth at the crystal tips and triggering non-crystallographic branching. Compared to the raw material and spherical agglomerates, the spherulites show a 3.6-fold and 2.7-fold increase in bulk density, respectively. More importantly, they exhibit excellent flowability (Carr's index 14.4% vs. 47.8% and 39.2%; Hausner's ratio 1.16 vs. 1.92 and 1.47), highlighting the primary advantage of the spherulitic growth strategy. This work provides a mechanistic understanding of spherulitic growth and offers a practical route to enhance the powder properties of L-carnosine. Download: Download high-res image (223KB) Download: Download full-size image Solvent‑dependent morphology evolution and non‑crystallographic branching mechanism in L‑carnosine spherulitic crystallization.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yunhui Xia,Bingyan Liu,Mingyuan Zhang,Guohui Cai,Mengjia Zhang,Jianghui Lin,Ling Li
Co-doped CeO 2 creates synergistic Co-O-Ce interfaces and oxygen vacancies. • Distinct CH 3 OH and CO 2 activation sites alleviate competitive adsorption. • Achieves high DMC yield of 16.5 mmol·g −1 ·h −1 under 2 MPa CO 2 and 140 °C. • Excellent stability demonstrated over five consecutive reaction cycles. • In situ IR confirms cooperative mechanism at Co-O-Ce active centers and O V . The direct conversion of carbon dioxide (CO 2 ) and methanol (CH 3 OH) into dimethyl carbonate (DMC) represents a highly attractive route for sustainable chemical synthesis and carbon utilization. However, when operating without dehydrating agents (typically used to shift the thermodynamic equilibrium), the process faces a fundamental challenge on conventional CeO 2 -based catalysts: the competitive adsorption of CO 2 and CH 3 OH for similar active sites, which ultimately limits reaction efficiency. To address this challenge, an innovative strategy was developed through the design of defect-engineered Co 0.05 Ce 0.95 O 2-δ solid solutions. Comprehensive characterization using Raman spectroscopy, XPS, XANES and EXAFS spectra, and AC-TEM confirmed the successful incorporation of Co into the CeO 2 lattice. The incorporation of Co generated abundant oxygen vacancies (O V ) and unique Co-associated interfacial sites (Co-O-Ce). These sites collectively enhanced the catalyst's acidity and basicity and helped alleviate competitive adsorption. Specifically, Co-O-Ce sites are proposed to favor CH 3 OH adsorption and activation, while O V and adjacent Ce ions facilitate CO 2 adsorption and polarization. This cooperative interaction substantially enhances the reaction efficiency, enabling the catalyst to achieve a high DMC formation rate of 16.5 mmol·g −1 ·h −1 under mild conditions (140 °C, 2 MPa), which surpasses that of most reported CeO 2 -based catalysts under comparable conditions. Moreover, the catalyst exhibited outstanding stability over five consecutive cycles. The reaction mechanism, involving the synergistic function of the Co-O-Ce interface sites, was further validated by in situ infrared spectroscopy. Beyond providing a highly efficient and stable catalyst, this work offers fundamental insights into active site engineering for promoting cooperative activation in CO 2 conversion reactions. Download: Download high-res image (339KB) Download: Download full-size image
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FOOD CHEMISTRY
·
2026
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IF 10.4
Yukun Yang,Jian Liu,Rong Guo,Baoqing Bai,Tao Bo,Jinhua Zhang,Ligang Yu,Huilin Liu,Ying Zhang,Shuo Wang
A three-channel sensor array based on Au@Pt NPs was constructed. • Au@Pt NPs with dual-function characteristics was designed. • Discrimination of light aroma-type Baijiu (LAB) was achieved. • Different years, production processes, price gradients, and adulterated were analyzed. • This method highlighted simple to operate, rapid in detection. The development of light aroma-type Baijiu (LAB) industry proposes a growing need for developing rapid and accurate discrimination method for the quality control of LAB. This study innovatively constructed a dual-mode three-channel sensor array based on the gold/platinum nanoparticles (Au@Pt NPs) with surface engineering. In this case, two colorimetric sensor channels based on ascorbic acid/para-aminophenol-chloroauric acid-nanozyme (AA/ pAP-HAuCl₄-Au@Pt NPs) and one fluorescent sensor channel based on nanozyme‑hydrogen peroxide- o -phenylenediamine (Au@Pt NPs-H₂O₂-OPD) were established. Experimental results demonstrate the colorimetric and fluorescence mode can accurately quantify four organic acids and three aldehydes in Baijiu, respectively. Samples including 17 different years and 9 different production processes of basic liquors of LAB, 48 different price gradients of commercial LAB, and adulterated LAB were analyzed. Discrimination with an accuracy exceeding 96% by Linear Discriminant Analysis, Hierarchical Cluster Analysis, and leave-one-out cross-validation was achieved. The dual-mode three-channel sensor array is characterized by simplicity, rapidity and accuracy, providing a new idea for the quality discrimination and market regulation of Baijiu.
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ACS Applied Materials & Interfaces
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2026
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IF 7.8
Ping Lu,Han-Bing Chen,Fang-Lei Zeng,Ning Li,Jia-Ming Zhu,Ning-Yi Yuan,Jian-Ning Ding
Lithium–sulfur (Li–S) batteries are regarded as a representative next-generation energy storage technology due to their high energy density, low cost, and environmental friendliness. Nevertheless, their widespread application is hindered by challenges such as the insulating nature of sulfur and Li2S, the larger volume expansion during cycling, and the serious side effects caused by the soluble lithium polysulfide (LiPSs), all of which collectively lead to severe capacity decay and poor cycling stability. Furthermore, the high flammability of sulfur is another critical safety concern, which has hindered its further application. To effectively address these limitations, this study designed and developed a flame-retardant sulfur cathode (CS@Al/APP) by encapsulating carbon–sulfur composites with aluminum hydroxide (Al(OH)3) and employing ammonium polyphosphate (APP) as a binder to enhance electrode stability and flame retardancy. Experimental results demonstrate that Al(OH)3 and APP synergistically improve the flame resistance by releasing inert gases and forming a protective char layer. Additionally, they enhance sulfur redox kinetics by efficiently trapping LiPSs. As a result, the CS@Al/APP cathode exhibits exceptional electrochemical stability, maintaining a reversible capacity of 1025.04 mAh g–1 after 100 cycles at 0.1C and delivering a discharge capacity of 744.2 mAh g–1 after 500 cycles at 1C. This study provides a feasible technical pathway for achieving lithium–sulfur batteries with high safety and high energy density.
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ACS Applied Nano Materials
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2026
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IF 5.5
Yi Cao,Xiaotong Wei,Likui Zhu,Yunlong Xie,Xiaobing Hu,Huang He,Wenfeng Qiu
Recently, numerous researchers have overcome the insufficient energy density of metal oxides in energy storage applications by tailoring their dimensions to the quantum dot scale and integrating them with carbon-based matrices. In this work, Hf6Ta2O17 quantum dots (HTO-QDs) were synthesized in situ on the surface of biomass-derived carbon nanospheres (CNS) via a polymer-derived ceramic method, resulting in CNS@HTO-QDs composites. The influence of varying HTO-QDs content on the microstructure and energy storage performance of the composites was systematically investigated using XRD, SEM, TEM, FTIR, and an electrochemical workstation. The results indicate that the uniformly dispersed HTO-QDs on the CNS surface significantly enhance the energy storage performance of the composite. Among them, CNS@HTO-QDs-25, with the highest HTO content, exhibits the maximum specific capacitance (485.3 F g–1). Combined XPS analysis and first-principles calculations reveal that the HTO quantum dots not only contribute additional pseudocapacitance to enhance the electrochemical performance of the composite, but also provide strong interfacial interactions via the formation of M–O–C covalent bonds with the CNS matrix to improve the ion adsorption and transport capabilities of the composite material. Additionally, a symmetric supercapacitor (CNS@HTO-QDs-25||CNS@HTO-QDs-25) prepared in this study exhibits excellent specific capacitance, superior energy density, and good cycling stability, demonstrating an effective approach to the development of composites of transition metal oxides and carbon-based materials.
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ChemistrySelect
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2026
·Vol. 11
·期 10
·e07382
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IF 2.3
Tong Zhang,Haiyong Wang,Chenguang Wang,Chen Shen,Qiying Liu
Monohydric alcohols are important platform molecules with diverse applications in organic synthesis, pharmaceuticals, food, and polymer industries. The production of monohydric alcohols via the selective hydrogenolysis of diols holds significant scientific and practical value. However, the precise catalytic control of the cleavage of target C–C and C–O bonds remains an open challenge, which often leads to low yields of the target products. Herein, metal-acid bifunctional catalysts were employed to boost the conversion of diols and improve the production of monohydric alcohols through hydrogenolysis. By regulating key reaction intermediates, a maximum yield of 76.2% for 1-propanol and a total monohydric alcohol yield of 84.9% were achieved within a short reaction time of 1 h. Our investigations demonstrate that the composite system of 5% Pd/C and phosphotungstic acid (HPW) catalyzes the conversion of ethylene glycol (EG) and 1,2-propanediol via a metal-acid synergistic effect, which enables the selective cleavage of C–C and C–O bonds. Ethylene glycol and 1,2-propanediol were thus converted to the monohydric alcohols (ethanol, n-propanol, and isopropanol) through hydrogenolysis and dehydration-hydrogenation processes. Additionally, the reaction order and activation energy barriers for the conversion of diols over the 5% Pd/C catalyst were determined experimentally. This work establishes a preliminary method for the production of monohydric alcohols from the hydrogenolysis of small-molecule diols by 5% Pd/C and HPW catalysts. Given the commercial availability of these catalysts, the developed catalytic system exhibits promising practical application potential and may facilitate the scale-up of this reaction. Graphical A 5% Pd/C–phosphotungstic acid (HPW) composite catalyzes the conversion of ethylene glycol and 1,2-propanediol via metal–acid synergy, enabling selective C–C/C–O cleavage. Hydrogenolysis and dehydration–hydrogenation yield ethanol, n-propanol, and isopropanol. Reaction orders and activation energies were determined, linking mechanistic insights to industrial scale-up for biomass diol upgrading.
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Frontiers in Microbiology
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2026
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IF 5.8
Ge Tian,Wanqing Zhang,Dafan Zhu,Jinhua Pan,Wei Qu,Yingwei Wang,Lina Zhou
Metschnikowia pulcherrima has been studied and applied in winemaking in recent years, but its application in icewine fermentation has rarely been reported. In this study, the tolerance and β-glucosidase activities of indigenous M. pulcherrima strain were first detected. The results show that, except for a relatively low tolerance to ethanol [limited to 4% (v/v)], the other tolerance is good to the fermentation of icewine; the cell wall-bound and extracellular β-glucosidase activities of M. pulcherrima strain were 35.93 nmol/mL (1.28 U) and 14.31 nmol/mL (0.42 U), respectively. M. pulcherrima and Saccharomyces cerevisiae (commercial and indigenous) strains were sequentially inoculated for icewine fermentations; meanwhile, pure S. cerevisiae fermentations were used as the control. The results showed that M. pulcherrima was completely replaced by S. cerevisiae in the middle and late stages of mixed culture fermentations of icewine. Compared with the icewine fermented with pure S. cerevisiae, the concentration of acetic acid and ethanol was lower, and the concentration of glycerol was higher in the mixed culture fermented icewines. After inoculation with M. pulcherrima, the levels of several important volatile compounds increased significantly, including β-damascenone, trans-rose oxide, isobutanol, isoamyl acetate, isobutyl acetate, and some ethyl esters (ethyl acetate, ethyl caprylate, ethyl caprate, ethyl nonanoate, ethyl hexanoate, and ethyl 9-decenoate). The pleasant fruity and flowery characteristics of mixed-fermentation icewine was intensified.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Yingnan Ma,Zhen Xu,Yulu Zhang,Zixuan Guo,Juan Chen,Panliang Zhang,Kewen Tang
This study innovatively proposed an in-situ confined polymerization strategy of trimesoyl chloride (TMC) and piperazine (PIP) within MOFs nanosheets, successfully constructing a thin film nanocomposite (TFN) separation membrane with excellent interfacial compatibility. The method employed MOFs nanosheets as confined templates to achieve bottom-up in-situ construction of a continuous and dense polyamide matrix. By precisely controlling the number of polymerization cycles, the MOFs content in the functional layer was effectively regulated from 83.3 wt% to 42.6 wt%. Benefiting from the molecular-level interfacial compatibility between MOFs and the polymer phase, as well as the synergistic effect of efficient solution diffusion and fine molecular sieving mechanisms, the TFN membranes demonstrated significantly enhanced CO 2 separation performance, CO 2 permeance reached 1688.3 GPU with selectivities of 36.4 for CO 2 /N 2 and 38.9 for CO 2 /CH 4 , which surpassed the Upper bound (2008 and 2019). The TFN membranes exhibited outstanding long-term operational stability (selectivity fluctuation <3.6%) under rigorous conditions including prolonged 14-day continuous testing and variable temperature (35-75 °C) and pressure (0.1-0.5 MPa) conditions. This work provided a new paradigm for the precise design and scalable fabrication of gas separation membranes, opening new avenues for the development of high-performance separation membranes.
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Nature Communications
·
2026
·
IF 18.1
Jin Yiqi,Wu Bo,Li Wenzheng,Wang Chunlei,Fan Li,Wen Lixian,Li Jiawei,Wang James,Lei Jinggui,Fan Jiantao,Li Hui
Cation degradation in ionomers critically limits the durability of pure-water-fed anion exchange membrane water electrolysis, particularly at the anode where high overpotentials and near-neutral pH induce harsh oxidative stress. However, prevailing cation design remains rooted in alkali-stability frameworks, which fall short under these oxidative conditions. Here, a multiscale approach combining molecular degradation and operando diagnostics identifies electrochemical oxidation as the dominant anodic cation degradation pathway in anion exchange membrane water electrolysis, prompting a shift toward oxidation-resistant cation design. Electrolyzers incorporating oxidation-tolerant trimethylammonium-functionalized ionomers achieve 360-hour stability at 1 A cm⁻ 2 , doubling the durability of alkali-stable N , N -dimethylpiperidinium-based ionomers. Mechanistic studies under simulated anode conditions reveal electrochemical oxidative degradation pathways of cations, establishing a molecular-level evaluation framework. Operando diagnostics with reference-integrated electrolyzers reveal that cation oxidation elevates ohmic and ionic transport resistances. This multiscale study directly traces device failure to cation oxidation, redefining cation design around oxidative stability to enhance durability in pure-water-fed anion exchange membrane water electrolysis.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2025
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IF 2.1
Linlin Sun,Guodong Su,Zhenghui Li,Renjie Xu
The equilibrium mole fraction solubility of tanshinone I in acetone, N,N-dimethylformamide (DMF), methanol, ethanol, water, ethylene glycol (EG), n-propanol, isopropanol, and 1-butanol as well as methanol/ethanol/DMF/acetone + water was determined by the isothermal saturation method at 278.15–323.15 K under 101.2 kPa. The temperature and the composition of solvent mixtures play a decisive role in the solubility of tanshinone I. Then, four monosolvent models (Apelblat, van’t Hoff, λh, and NRTL) and three cosolvency models (Jouyban–Acree (J-A), van’t Hoff–Jouyban–Acree (V-J-A), and modified Apelblat–Jouyban–Acree (A-J-A)) were utilized to correlate the mole fraction of tanshinone I. The maximum deviation (relative average deviation (RAD) and root-mean-square deviation (RMSD)) between the experimental data and the solubility data calculated by the monosolvent models are 6.21% and 3.02 × 10–4, respectively. The maximum of RAD and RMSD for the mixture systems are 1.58% and 1.35 × 10–4, respectively. The Kamlet and Taft linear solvation energy relationship model was used to analyze the solvent effect, and the nonspecific dipolarity/polarizability interactions between the solute and solvent played a major promoting role. All in all, the experimental and computational data are able to provide basic data for the optimization and improvement of the recrystallization process of tanshinone I.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Ruyi Lu,Lishou Ban,Yihan Zhang,Jin Zhang,Xijun Liu,Jia He
The development of high-performance carbon-free Pt-based electrocatalysts that combine exceptional methanol oxidation activity with robust CO-poisoning resistance remained a significant challenge in fuel cell technology. Herein, we presented a new class of PtPdRuCuNi alloy aerogel electrocatalyst, featuring a structurally unique hollow network architecture with nanoporous ligaments (average diameter: 5.16 nm). The optimized catalyst exhibited remarkable mass activities of 2.05, 1.37, and 4.50 A mg Pt −1 in acidic, neutral, and alkaline methanol oxidation environments, respectively, surpassing the performance of commercial PtRu/C (0.74, 1.00, 2.06 A mg Pt −1 ). The CO oxidation peak potential exhibited a substantial 172 mV negative shift (0.352 V vs SCE) compared to conventional Pt/C (0.524 V). In-situ FTIR analysis uncovered a distinctive reaction pathway in which formic acid emerged as the primary intermediate during methanol oxidation processes at high potentials and successfully bypassed the conventional CO-mediated poisoning mechanism prevalent in Pt-based catalysts. When employed as an anode catalyst in DMFC, the alloy aerogel delivered a power density of 77.7 mW cm −2 at 65 °C, the mass-specific power attained a remarkable 109.7 mW mg Pt −1 at Pt loading of 0.37 mg cm −2 . This work introduced a new paradigm for carbon-free Pt-alloy catalyst design by leveraging alloy synergy and nanostructural engineering.
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WATER RESEARCH
·
2025
·
IF 12.4
Boqiang Li,Longjie Cheng,Lei Wang,Baiyang Chen
Alcohols are widely used as quenchers in UV/chlorine process currently to evaluate the roles of radicals, principally relying on the premise that they selectively react with target radicals (e.g., HO ● and Cl ● ) without affecting other reactions. However, this study revealed several unrecognized alcohol-dependent phenomena in this system that clearly challenge this principle. Specifically, tert-butanol inhibited chlorine decay ( k obs = 0.14 min –1 ), whereas methanol, ethanol, and iso-butanol accelerated it by 1.2-2.3 folds ( k obs = 0.23-0.45 min –1 ). Mechanistic analysis indicated that alcohols quenched HO ● and Cl ● while simultaneously generating secondary species that altered chlorine consumption. In the case of tert-butanol, radical quenching dominated and suppressed indirect chlorine decay, so that tert-butanol actually inhibited the conversion of chlorine. In contrast, other monohydric alcohols formed HO-R ● that reacted with O 2 to O 2 ●− , a stronger driver of chlorine loss. A quantitative structure-activity relationship model (R 2 = 0.949) identified molecular polarizability (α = 13.8-42.9) and the lowest unoccupied molecular orbital energy ( E LUMO = 2.41-2.60 eV) of alcohols as predictive descriptors of chlorine decay. For representative micropollutants, using methanol as quencher inflated the apparent roles of primary radicals (up to 83.6%) but underestimated secondary species such as ClO ● , whereas tert-butanol provided more reliable qualitative indication. To assess radicals reliably, we propose a two-step strategy that avoids misattribution: (1) using tert-butanol for qualitative indication of radical involvement; (2) applying multi-probe competition kinetics and modeling radicals adduct speciation for radical quantification. This work established quantitative bounds on alcohol-induced perturbations and offers a protocol for reliable radical quantification in advanced oxidation research.
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