FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Weiqi Liu,Chong Liu,Shuang Cheng,Zhihao Zhao,Yuanyuan Deng,Guang Liu,Zexin Zhao,Pengfei Zhou,Mingwei Zhang
A novel oil-in-natural deep eutectic solvent (O/NADES) PIB platform was developed for production of DAG. • Better performance for production of DAG was obtained in O/NADES and O/glycerol Pickering emulsion droplets. • The insights of thermostability of CALB were proposed with molecular dynamics simulations. Glycerolysis is a crucial approach for the preparation of diacylglycerols (DAG). The challenges such as enzyme stability and interfacial mass transfer have been insufficiently addressed. To validate the Pickering interfacial biocatalysis (PIB) for the desired target, a boosting system containing Pickering emulsion droplets based on natural deep eutectic solvents (NADES) was developed as a reaction medium for enhancing the catalysis efficiency of CALB-catalyzed ( Candida antarctica lipase B, CALB) glycerolysis. The effects of types of oils and NADES on the properties of Pickering emulsions and catalytic efficiency were evaluated. Comparative analyses within the system revealed a 3.20-fold enhancement in catalytic efficiency for the NADES-based Pickering emulsion compared to its non-emulsion control, and an independent 9.13-fold enhancement for the glycerol-based Pickering emulsion relative to corresponding non-emulsion control. Additionally, molecular dynamics simulations offered insights into the temperature-dependent conformational behavior of CALB across various polar media. This study highlights the potential applicability of NADES Pickering emulsions as an efficient and sustainable platform for biocatalysis of lipids. Download: Download high-res image (118KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2026
·
IF 5.1
Quanwang Niu,Yun Liu,Xiangyu Gu,Yanyan Bu,Xiaohong Yan,Xiangfu Wang
Multicolor ML encoder enables color-spatial dual-dimensional optical encoding. • Encodes 54 color-coded Morse characters, dramatically increasing data density. • Volatile ML emission offers transient information protection. Mechanoluminescent (ML) materials, which emit light under mechanical stress, offer a unique platform for dynamic optical signaling. However, expanding the information capacity of ML encoding systems traditionally requires enlarging physical device footprints into complex 2D arrays. This work introduces a multicolor ML encoder based on color-spatial dual-dimensional multiplexing. Using the single-host CaZnOS ML materials with distinct activator ions (Ho 3 + , Mn 2+ , and Eu 3+ ), an 8 × 1 linear array encoder translates mechanical writing strokes into unique chromatic sequences under pure mechanical stimulation. The system successfully supports a rich character library of 54 distinct Morse characters within a simple linear footprint by integrating chromatic sequences with Morse code logic across spatial bit channels. This work provides a practical strategy for optical information encoding that does not rely on intricate device geometries. Download: Download high-res image (219KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Jianlin Zhao,Xiangliang Xi,Qiulin Cao,Ping Bai,Songbo Li,Xiaohui Ma
The efficient synergy of Zn‑metal/Se‑vacancy dual active sites facilitates surface catalytic reactions. • The localized surface plasmon resonance effect of CuCo 2 O 4 broadens the spectral absorption range to near-infrared light. • The formation of S-Scheme heterojunction and its mechanism of photogenerated electron migration have been deeply studied. The synergistic effect of metal-vacancy dual active sites plays a pivotal role in surface catalytic reactions, yet its underlying microscopic mechanism remains poorly understood. Herein, a Zn-ZnSe photocatalyst containing Se vacancies is prepared through solvothermal synthesis followed by thermal reduction methods. The resulting Zn-ZnSe photocatalyst with Se vacancy (V Se ) is then coupled with the plasmonic catalyst CuCo 2 O 4 to construct a CuCo 2 O 4 /Zn-ZnSe S-scheme heterojunction. Owing to the localized surface plasmon resonance (LSPR) effect, the as-prepared CuCo 2 O 4 /Zn-ZnSe exhibits intense near-infrared light response. Experimental characterization and theoretical calculations indicate that the synergistic effect of Zn metal and Se vacancies (Zn-V Se ) promotes surface photocatalytic reactions. Specifically, H 2 O activation (*H 2 O → *OH*H) occurs primarily at Se vacancy sites, whereas Zn metal facilitates H 2 formation and desorption (*H → * + 1/2H 2 ). This work elucidates the synergistic catalysis of Zn-V Se dual active sites, and provides a strategy for converting full-spectrum solar energy into hydrogen. Download: Download high-res image (151KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Chong Zhang,Xinbao Li,Lei Chen,Gonggang Sun,Qi Wang
Liquid hydrogen is attractive for large-scale hydrogen storage and long-distance transport because of its high volumetric energy density. However, exothermic ortho-para hydrogen conversion at cryogenic temperature causes boil-off loss and requires efficient catalysts. Iron-based catalysts are widely used, but their practical application is limited by poor stability under water, oxygen, and impurity attack. Herein, Fe@SiO 2 core-shell catalysts with tunable shell thicknesses were prepared by precipitation combined with hydrolytic coating and evaluated at 77 K. An amorphous SiO 2 shell was uniformly formed on the iron-based particles without destroying the active phase. The optimized catalyst achieved an outlet para-H 2 content of 47.5% and remained stable over 120 h. The improved catalytic performance is attributed to the SiO 2 coating, which enhances the structural stability of the iron-based particles while retaining accessible mesoporous transport pathways. These pathways facilitate H 2 transport to the iron-based active phase while reducing its exposure to the external environment.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Zhengyuan Zhang,Feng Shi,Xingdong Zheng,Yingyi Ding,Xue Yang,Xingchen Liu,Shuguang Zhu,Weidong Shi
A dense a-c nanointerfaces in situ formed on NiW alloy driven by K + insertion. • Nanointerfaces intervene in the hydrogen-bonded network to promote proton transfer. • Amorphous WO x facilitates K + intercalation by coupled ion-electron transfer. • WO x and K + -inserted WO x optimize *H adsorption and *OH desorption capacity of NiW alloy. • ( a-c )WO x /NiW delivers superior HER performance approaching that of 20% Pt/C. NiW alloys with unique corrosion resistance have garnered considerable attention for the alkaline hydrogen evolution reaction (HER). Incorporating amorphous WO x can overcome the performance limitations of ordered NiW alloys by exposing more active sites. However, the dissolution of tungsten oxides triggered by the K + ion trapping effect is inevitable yet often overlooked during alkaline HER. Herein, a K + ion trapping effect strategy is proposed for assisting in situ formation of dense amorphous-crystalline ( a-c ) nanointerfaces on NiW alloy ( a-c (WO x )/NiW), utilizing a WO 2.72 -encapsulated NiW alloy as a pre-catalyst, wherein the a-c nanointerfaces function as a regulator of interfacial water, a diffusion channel for ions, reactive species and electrons, and an activator of active sites. During HER, K + intercalation, proceeded by coupled ion-electron transfer (CIET), facilitates H 2 O access to the alloy, activates the Ni 3 hollow sites for additional *H adsorption, and modulates *OH desorption at the W sites. Simultaneously, the WO x component intervenes in the hydrogen-bond network to promote proton transfer and optimizes *H adsorption at the Ni 2 W 1 hollow sites of the alloy. Benefiting from the dense a-c nanointerfaces, a-c (WO x )/NiW delivers superior HER performance (58 ± 2 mV@50 mA cm −2 , Tafel slope 47 ± 2 mV dec −1 ), approaching that of commercial 20% Pt/C. This work reveals the evolution behavior of tungsten oxides on NiW alloy surface under the K + ion trapping effect and offers new insights into the design of durable HER electrocatalysts. K + ion trapping effect assisted in-situ formation of dense a-c nanointerfaces on NiW alloy, functioning as a regulator of interfacial water, a diffusion channel for ions and electrons, and an exciter of active site. Download: Download high-res image (209KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Yu Wu,Fuchang You,Yancheng Zheng
Calcium chloride water-based drilling fluids are widely used because of their excellent inhibition performance, but rheological control remains a key constraint on their development. Xanthan gum (XG) is the rheological modifier of choice, yet its structural evolution and molecular mechanisms under high‑calcium alkaline hydrothermal conditions remain unexplored. Using inorganic bases as controls, this study investigated the effects of three alkanolamines on the rheological behavior and structural evolution of XG after hydrothermal aging in high-calcium brine. The results showed that the inorganic-base systems almost completely lost their rheological properties after aging, whereas the alkanolamine systems exhibited superior hydrothermal stability. Diethanolamine (DEA) performed the best, showing the highest low-shear viscosity, yield stress, and shear-thinning characteristics. Structural characterization revealed that the DEA system exhibited better preservation of β-glycosidic linkages, oxygen-containing environments, high-molecular-weight chains, and microscopic networks. Molecular dynamics simulations demonstrated that DEA formed a multipoint noncovalent interaction network with XG chain segments and maintained the local hydration environment, mitigating chain dehydration and local structural disturbance induced by high-temperature and high‑calcium conditions. This study elucidates the molecular mechanism by which alkanolamines, particularly DEA, enhance the hydrothermal stability of XG, providing a basis for the stabilization design of polysaccharide-based fluids under high-calcium alkaline hydrothermal conditions.
✓ 已验证
产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Jun Wang,Xinxing Li,Yibo Wang,Yafei Mu,Xiaoming Guo,Di Lan,Dashuang Wang,Haifeng Li
The PTFE-rich gated layer enables optimized surface impedance matching and spatial separation of internal dissipation units. • Buried CoO x /CFs interfaces trigger confined charge migration and multi-level polarization. • Porous pathways and discontinuous interfaces coordinate wave entry with internal attenuation. • Spatial partitioning drives full X-band absorption and superior corrosive media barrier. For communication and radar stealth applications, microwave absorbing materials urgently need to achieve efficient attenuation and stable operation within limited thickness. However, while continuous conductive networks or high-load loss phases can enhance attenuation, they are prone to impedance mismatch due to excessively high surface dielectric response; simply using low-polarity polymers for coverage may weaken the internal active interface, making it difficult to coordinate wave entry and energy conversion. To address this, we propose a “fluorocarbon-gating–buried-interface dissipation” strategy to construct polytetrafluoroethylene (PTFE)/poly(vinyl alcohol) (PVA)-based porous composite foams containing short carbon fibers (CFs) and cobalt oxide (CoO x ) domains, hereafter denoted PPCFCs. Following the immobilization of Co 2+ precursors on acidified short carbon fibers, PTFE/PVA foaming, and N 2 /air stepwise thermal reconstruction, the resulting composite exhibits an F-rich surface composition and a low-order carbonaceous matrix containing embedded, locally dispersed CoO x /CFs-related nanocrystalline domains. The fluorocarbon surface helps mitigate impedance abrupt changes at the air/material interface and reduces liquid-phase wetting, while the porous framework extends the propagation path. Internally, non-penetrating CFs microcurrent units and CoO x nanodomains synergistically induce confined charge migration, multi-level polarization relaxation, and auxiliary magnetic response. The optimal PPCFC-3 achieves a minimum reflection loss of −52.61 dB at 2.8 mm and effective X-band coverage at 3.4 mm. Simultaneously, this material exhibits high apparent hydrophobicity and effective barrier against corrosive media penetration. This study provides a spatial partitioning design approach for optimizing porous microwave absorbing materials through the synergistic effect of surface impedance tuning and internal interface dissipation. Co 2+ -loaded CFs were integrated into PTFE/PVA foam and thermally reconstructed into PPCFC-3. Fluorocarbon gating and buried CoO x /CFs interfaces enable X-band absorption, simulated RCS reduction, and electrolyte-barrier potential. Download: Download high-res image (313KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Tianhong Liu,Ziyi Xu,Shuiyuan Zhang,Long Yu,Junting Mo,Mingtai Sun,Suhua Wang
Background Trace water contamination in organic solvents severely hampers chemical synthesis, pharmaceutical manufacturing, and electronic device fabrication; however, existing detection methods lack portability, adequate sensitivity, or stability. While MOF-based fluorescent sensors show promise, most are limited by single-signal outputs, weak anti-interference capability, and poor solvent tolerance. Results To address these challenges, we report an amino-functionalized europium-doped zirconium MOF (Eu@MOF-NH 2 ), synthesized via a one-step solvothermal method, serving as a robust ratiometric fluorescent probe for trace water detection. The material exhibits dual emissions: ligand-based (435 nm) and Eu 3+ -centered (614 nm). Upon water exposure, strong hydrogen bonds with the ligand activate intramolecular charge transfer (ICT) to intensify the blue emission. Concurrently, high-frequency O–H vibrational coupling quenches the red emission by blocking ligand-to-metal energy transfer, causing a rapid (<30 s) pink-to-blue visual transition. The fluorescence intensity ratio (I 435 /I 614 ) demonstrates excellent linearity with water content (0–10% v/v) and achieves ultralow limits of detection in ethanol (0.1643%), THF (0.0311%), methanol (0.3355%), and acetonitrile (0.0148%). Furthermore, this probe maintains consistent sensing performance across 11 diverse organic solvents with highly varying polarities. Integrated with a smartphone-assisted RGB colorimetric platform based on the blue-to-red intensity ratio, Eu@MOF-NH 2 enables portable, on-site, and quantitative visual detection. Significance This work overcomes the traditional limitations of sensitivity and stability, providing reliable material design and sensing strategies for industrial trace water monitoring and quality control.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.5
Hong-Da Zhang,Shu-Ting Bao,Shi-Chao Su,Ming-Fei Dai,Zhi-Ping Zhao,Le Sang
The coating stability of dopamine-polymer-modified Ni foam is important for its application in micropacked bed reactors. In this study, hydrophilically modified polydopamine (PDA)/Ni foam and polylevodopa (PLD)/Ni foam, and hydrophobically modified F 9 -PDA/Ni foam and F 9 -PLD/Ni foam were prepared. The hydrophobically modified Ni foam packings had a gas-liquid mass transfer enhancement performance in micropacked bed reactors. Based on the gas-liquid flushing experiment results, the stability of PDA/Ni foam and F 9 -PDA/Ni foam was better than that of PLD/Ni foam and F 9 -PLD/Ni foam. PFHS can interact with PDA and PLD to produce hydrogen bonds and chemical reactions. The adsorption of PFHS on PLD was more stable, and the chemical reaction was more spontaneous. The experiment and DFT calculation confirmed the binding strength of PDA/PLD and Ni foam acts as a key controlling factor for the overall stability of F 9 -PDA/PLD-Ni foam. As a result, the adhesion of PDA on the Ni foam was significantly better than that of PLD.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Zongkai Li,Nuo Xiao,Weihua Liu,Ying Zhao,Qianqian Wang,Guoxiu Zhang,Menglu Fan,Chun Wang,Qiuhua Wu
An amino-functionalized covalent organic framework was synthesized. • NH 2 -PyCOF exhibited enhanced hydrophilicity and multiple interaction sites. • NH 2 -PyCOF exhibited superior adsorption ability to neonicotinoid insecticides (NTIs). • A SPE-HPLC-MS method was built to detect NTIs in honey, beverage, and water. An amino-functionalized pyrazine-based highly conjugated covalent organic framework (NH 2 -PyCOF) was synthesized via a post-synthetic modification strategy and applied as an adsorbent for the solid-phase extraction (SPE) of four neonicotinoid insecticides (NTIs) in honey, beverage and water samples. NH 2 -PyCOF combines a highly conjugated pyrazine skeleton with multiple amino sites, which not only enhances its hydrophilicity but also provides multiple interaction sites, including hydrogen-bonding and π-π stacking sites. When NH 2 -PyCOF-based SPE was coupled with HPLC-MS, the method demonstrated low detection limits (0.025–0.10 ng mL -1 for peach beverage samples, 0.01–0.03 ng mL -1 for water samples and 0.20–0.80 ng g -1 for honey samples) and satisfactory recoveries (86.0%-111%) with relative standard deviations below 8.4%. The NH 2 -PyCOF-SPE-HPLC-MS method exhibits exceptional sensitivity and reproducibility, providing a reliable and efficient approach for monitoring trace NTI residues in complex matrices. Download: Download high-res image (322KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Fulin Yang,Runze He,Sneha Mittal,Shuli Wang,Anantharaj Sengeni,Ligang Feng
The advancement of Fe-based oxygen evolution reaction (OER) catalysts lags behind their Ni-based counterparts, albeit their good theoretically predicted performance and low cost. Deeply understanding the catalytic mechanism would be necessary to advance the Fe-based catalysts. Currently, Fe-based non-metallic compounds, such as sulfides, phosphides, and selenides, have been widely explored as highly active OER precatalysts because of their tunable electronic structures and relatively high electrical conductivity. Nevertheless, these precatalysts usually undergo surface reconstruction into oxyhydroxides under OER conditions, making the real active phase different from the pristine compound and complicating the structure-performance relationship. Herein, taking the Ni-doped FeS 2 nanosphere catalyst as a platform, we discover a nuanced bidirectional electronic effect within the surface-reconstructed active phase, showcasing the vital roles of both residual FeS 2 and Ni dopants in optimizing catalytic performance. Structural characterizations confirm the successful incorporation of Ni dopants into the pyrite FeS 2 lattice. An amorphous carbon layer is coated on the sulphide nanospheres, which contributes to improving charge transfer efficiency and maintaining structural integrity during electrocatalysis. As a result, the obtained catalyst, typically denoted as Ni 0.2 -FeS 2 @C, achieves markedly enhanced OER activity in the alkaline electrolyte, requiring an overpotential of only 270 mV to reach 10 mA cm −2 , much lower than those of the undoped and uncoated counterparts (FeS 2 @C and FeS 2 ). Moreover, Ni 0.2 -FeS 2 @C exhibits negligible activity decay after 5000 cyclic voltammetry cycles and remains stable during 100 h of constant-potential operation, with Faradaic efficiency for oxygen production close to 100%, demonstrating good catalytic durability and selectivity. Spectroscopic analyses and density functional theory calculations reveal that surface reconstruction during OER leads to the formation of oxyhydroxide as reported elsewhere, but unique electronic interactions, which have not been observed earlier. On the one hand, the residual FeS 2 substrate upshifts the d -band center of the surface oxyhydroxide, strengthening the adsorption behavior of the crucial oxygenated intermediate. On the other hand, Ni dopants induce a downshift of the d -band center, which weakens over-binding inversely. The resulting bidirectional modulation optimizes the electronic structure of active sites and effectively balances the adsorption strength of OER intermediates, thereby reducing the OER energy barrier. Consequently, this work not only provides a viable strategy for the rational design of Fe-based OER catalysts but also deepens the mechanistic understanding of the real active phase of balanced electronic modulation in enhancing electrocatalytic activity. Surface reconstruction generates an oxyhydroxide active layer on Ni-doped FeS 2 for OER, where the FeS 2 substrate and Ni dopants oppositely regulate the d -band center to optimize oxygen-intermediate binding. Download: Download high-res image (295KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 10.6
Hao Xin,Jian Ao,Yangtao Wu,Jue Wang,Jiaxin Xiao,Guoci Lu,Lingjun Bu,Shiqing Zhou
Perchlorate (ClO 4 ⁻) is a persistent and toxic oxyanion widely used in military and industrial activities, posing a crucial challenge in drinking water treatment due to its high solubility and chemical stability. To meet increasingly stringent regulatory limits, adsorbents suitable for full-scale treatment must reconcile high selectivity, rapid kinetics and material safety. Herein, we develop a modified granular activated carbon (GAC) using poly(diallyldimethylammonium chloride) (PDDA), a cationic polyelectrolyte widely used in water-treatment processes. The PDDA-GAC exhibits high ClO 4 ⁻ selectivity against common competing anions and rapid adsorption kinetics, reaching saturation within 10 min. The remarkable performance is attributed to a unique surface-confined functionalization. The enhanced surface hydrophobicity (water contact angle: 71.2°) favors the enrichment of weakly hydrated ClO 4 ⁻, which is then rapidly captured via strong electrostatic interaction (∼70 kcal mol −1 ) with readily accessible quaternary ammonium groups, minimizing intraparticle diffusion resistance. In fixed-bed treatment of source water containing 500 μg L −1 ClO 4 ⁻, PDDA-GAC increases the treatable volume before breakthrough at 70 μg L −1 from 950 to 3250 bed volumes, compared to pristine GAC, and maintains excellent reusability. Overall, this work provides an efficient, rapid, and safe adsorbent platform with strong potential for full-scale ClO 4 ⁻ removal.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）