ChemCatChem
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2026
·Vol. 18
·期 15
·e70983
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IF 4.1
Xiaolin Zhou,Jun Chen,Zhen Wang,Yuwen Jiang,Zeping Peng,Yifei Yang
Bifunctional Pt-zeolite catalysts have shown outstanding activity for hydrogen-water isotope exchange due to the highly-efficient synergy between metal and Brønsted acid. However, the aggregation and sintering of Pt particles during this reaction impose the great difficulties for their practical applications. Here, the highly dispersed Pt nanoparticles were embedded into framework or channeled within micropores of ZSM-5 by one-pot hydrothermal synthesis to form the encapsulated catalysts. For comparison, a supported one with Pt species predominantly dewelled on the extra-framework was prepared to interrogate their catalytic durabilities during H 2 -HDO isotope exchange. The similarly catalytic efficacy of metal-acid enables the encapsulated and supported ones to share the same reaction pathway by the protonated water clusters on acid sites to deliver deuteron to reactive ones for the interfacial hydrogen isotope exchange between Pt and water cluster, leading to the measured reaction rate and activation energy to be comparable. During the long-term running, the encapsulated Pt-zeolite catalyst exhibits the superior stability with the ignorable activity loss due to the physical constraint effect to suppress the migration of Pt species. However, the absence of this effect upon the supported one causes the severe sintering and agglomeration of metal species, which greatly deteriorates the catalytic exchange. Graphical Pt nanoparticles were hydrothermally introduced within ZSM-5 framework for the liquid-phase hydrogen-water isotope exchange. This encapsulated structure exhibited the exceptional durability in long-term running, due to the inhibition of Pt species migration by the physical confinement effect of rigid framework.
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CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Akkammagari Putta Rangappa,Wei Xiong,Xinxin Lu,Guohan Sun,Yixuan Liu,Jiangdong Dai,Jun Zhao
CTAB assisted synthesis of FeS 2 allows precise control over surface sulfur vacancies. • Surface-modified FeS 2 boosts O 2 activation and enhances reactive oxygen species (ROS) population. • Vs-rich FeS 2 lowers HMF conversion barrier, giving 15.73 fold higher DFF yield than pristine FeS 2 . • Synergy of Vs and Fe redox cycling in FeS 2 accelerates charge transfer and surface reactivity. • Tuning defects and redox states in FeS 2 enable sustainable and versatile photocatalysis. The photocatalytic conversion of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) using molecular oxygen (O 2 ) as the oxidant offers a sustainable route for biomass valorization, yet is limited by inefficient O 2 adsorption and activation on conventional photocatalysts. Herein, we report a Cetrimonium bromide (CTAB) assisted synthesis of iron pyrite (FeS 2 ) with engineered surface sulfur vacancies (Vs) that enable simultaneous activation of O 2 and HMF under solar light. Introduction of Vs increases the catalyst’s specific surface area and modulates the local electronic structure, particularly tuning the Fe 2+ /Fe 3+ redox landscape. These defect sites act synergistically, where Fe 2+ sites act as preferred O 2 adsorption centers, while adjacent Vs promote electron localization and transfer to adsorbed O 2 , thereby facilitating its activation through the oxidation of Fe 2+ to Fe 3+ . Concurrently, the modulated Fe redox states enable efficient HMF adsorption and oxidation through interaction with the activated O 2 species (•O 2 – and 1 O 2 ). This dual activation mechanism, driven by vacancy engineering and Fe redox dynamics, enhances charge transfer kinetics and surface reactivity, leading to a 15.7-fold increase in DFF production compared to prismatic FeS 2 . Our findings emphasize the critical role of Vs and Fe 2+ /Fe 3+ redox interplay in organizing simultaneous O 2 activation and HMF oxidation, advancing the rational design of efficient photocatalysts for biomass-derived chemical production. Download: Download high-res image (117KB) Download: Download full-size image
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ACS Catalysis
·
2026
·
IF 13.6
Li Guixian,Jin Gang,Wang Chenjing,Zhong Dazhong,Li Jinping,Zhao Qiang
Cobalt-based catalysts have been reported to electrocatalyze the oxidation of 5-hydroxymethylfurfural (HMFOR) to high-value-added chemicals. However, generating highly active Co 3+ OOH at low potential remains a grand challenge. In this paper, we describe the electronegative metal-doped cobalt metal-organic frameworks (Co-MOFs) that facilitate the formation of Co 3+ OOH for efficient HMFOR. Electrochemical measurements and in situ characterization reveal that the introduction of electronegative metals and the use of MOF facilitate cobalt oxidation and enhance hydroxyl adsorption, thereby promoting C–OH bond activation and yielding more free water, contributing to the HMFOR performance. The obtained CoNi-BDC delivers a low potential of 1.14 V vs RHE at 10 mA cm –2 and a high current density of 560 mA cm –2 at 1.48 V vs RHE, with a Faradaic efficiency (FE) of 95% for 2,5-furandicarboxylic acid (FDCA), and favorable cycling stability. The work provides insight into promoting Co 3+ OOH formation for advancing the electrocatalytic conversion of biomass.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Kang Guo,Chengliang Tang,Ling Cen,Lei Liu,Hanzi Liu,Zhiqiang Sun
Bimetallic CrGaO x /ZSM-5 catalyst balances activity-selectivity trade-off in propane dehydrogenation. • Ga species modulates the Cr-O-Cr coordination environment, facilitates C H bond activation and simultaneously stabilizes the Cr 6+ /Cr 3+ redox cycle. • In-situ DRIFTS reveals Cr Ga synergy promotes propyl intermediate formation at low temperature. • O 2 regeneration effectively restores Cr 6+ active sites and removes coke deposits, ensuring sustained catalytic performance. Developing highly active and stable catalysts for propane dehydrogenation (PDH) is crucial for propylene production, yet it is normally hampered by the trade-off between C 3 H 8 conversion and C 3 H 6 selectivity. Herein, we construct a series of bimetallic CrGaO x /ZSM-5 catalysts to mitigate this intrinsic challenge. The optimized Cr 3 Ga 3 O x /ZSM-5 catalyst achieves a propane conversion of 38.7% with a propylene selectivity of 84.3% at 600 °C and maintains stable propylene productivity over 40 h of continuous operation. Results reveal that Ga 3+ incorporation modifies the Cr-O-Cr coordination environment, thus enhancing propane activation and formation of propyl intermediates. The structural modification suppresses Cr 3+ over-reduction to Cr 0 , maintaining the Cr 6+ /Cr 3+ redox cycle over extended reaction periods. Furthermore, O 2 regeneration effectively removes coke deposits and restores active sites. This work provides mechanistic insights into the Cr Ga electronic and structural synergy and offers a design strategy for stable chromium-based PDH catalysts. The incorporation of Ga 3+ modulates the Cr-O-Cr coordination environment, facilitating C H bond activation while suppressing undesired C C bond cleavage, and simultaneously stabilizes the Cr 6+ /Cr 3+ redox cycle by preventing over-reduction of Cr 6+ to inactive Cr 0 . O 2 -mediated regeneration effectively restores active Cr 6+ sites and removes coke deposits, enabling a reversible deactivation-regeneration cycle. The optimized Cr 3 Ga 3 O x /ZSM-5(300) catalyst achieves a propane conversion of 38.7% with a propylene selectivity of 84.3% at 600 °C under standard conditions, and delivers a superior performance of 62.1% conversion with 90.6% selectivity under lower WHSV. Download: Download high-res image (126KB) Download: Download full-size image
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PEST MANAGEMENT SCIENCE
·
2026
·
IF 4.2
Chunlan Li,Yuandong Liu,Yuxin Huang,Fanqi Meng,Jing Zhang,Lixin Zhang
BACKGROUND Asian soybean rust caused by Phakopsora pachyrhizi ( P. pachyrhizi ) poses a serious threat to global soybean production, and resistance to conventional fungicides is increasing. Therefore, new fungicides with novel modes of action are urgently needed. This study aimed to design and optimize potent 5-(trifluoromethyl)-1,2,4-oxadiazole (TFMO) derivatives inspired by fungal histone deacetylase inhibition. RESULTS Forty-two TFMO derivatives were synthesized through bioisosteric modification and linker optimization. Among them, FM-17888 showed the highest activity against P. pachyrhizi , with an EC 50 value of 0.0583 mg·L −1 , approximately eightfold lower than that of flufenoxadiazam. Under the tested greenhouse conditions, FM-17888 also showed good crop safety and selective activity against Puccinia triticina . Molecular docking and DFT analyses suggested that its improved activity may be associated with favorable binding geometry, additional π -sulfur interactions, and a reduced HOMO-LUMO energy gap. CONCLUSION FM-17888 is a potent and selective TFMO lead compound for soybean rust control. Together with the greenhouse bioassay, docking, and DFT results, these findings support FM-17888 as a promising candidate for further development against rust diseases, while direct target-validation studies are still needed to confirm its precise mode of action. © 2026 Society of Chemical Industry.
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高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.9
Guinong Qiao,He Li,Xuejian Liu,Haoyang Zhang,Jiazhuo Song,Hamed Alshawwa,Xinying Zou,Rong Han,Wenjun Tang,Ruijing Shangguan,Wenfu Yan,Zhimin Zhang
Bio-enhanced zeolite nanoplatform (NQZ@ZSM-5) engineered for dentin interfaces. • Synergistic antibacterial, anti-degradation, and remineralization at biointerfaces. • Aged bond strength increases ~2.03× versus a commercial adhesive. • Excellent biocompatibility with preserved interfacial adhesion performance. Dentin adhesives are essential for minimally invasive restorative dentistry. However, the long-term stability of the resin−dentin interface remains limited due to collagen degradation and bacterial erosion. Achieving synergistic antibacterial activity, collagen cross-linking, and remineralization at this interface is therefore crucial for durable dentin bonding. Quercetin (QC), a natural polyphenol, possesses both antibacterial activity and collagen cross-linking capability. These properties can be further enhanced through coordination with metal ions to form metal–phenolic networks (MPNs). In this study, we used the NGV peptide, derived from bone sialoprotein (BSP, a non-collagenous protein), as a remineralization motif. We combined NGV with an MPN to construct a bio-enhanced nanoplatform (NGV/QC−Zn@ZSM-5) for dentin adhesives. The nanoplatform was prepared by incorporating Zn 2+ into ZSM 5 zeolites, followed by surface coating with a QC−Zn MPN and subsequent functionalization with NGV. ZSM-5 serves as a multifunctional carrier due to its high ion-exchange capacity, tunable surface chemistry, and ability to enable controlled Zn 2+ release. The resulting system is designed to stabilize collagen, inhibit bacterial biofilm formation, and promote dentin remineralization. This integrated strategy strengthens the resin−dentin interface against both enzymatic and bacterial degradation, thereby improving bonding durability. Notably, after aging, the modified adhesive exhibited a bond strength approximately 2.03-fold higher than that of the commercial control. Overall, these results highlight the strong potential of this nanoplatform to enhance the longevity and clinical performance of dental bonding restorations.
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MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.5
Rongyue Cao,Boyuan Chen,Jianan Liu,Jiarui Li,Tong Li,Zhibin Li,Baojiang Jiang
Efficient acrolein production at lower temperature (200 °C). • Optimal acidity identified by tuning the Si/Al ratio in ZSM-5. • Trace Fe enhanced yield 2.4 times more and improved coke resistance. • Synergistic promotion of glycerol dehydration by Brønsted and Lewis acids. The catalytic dehydration of glycerol to acrolein represents a sustainable route for biomass valorization. However, most reported systems require high temperatures or pressure, which limits energy efficiency and sustainability. Furthermore, the relationship between catalyst acidity and acrolein formation in the liquid phase remains inadequately understood. In this work, we demonstrate that nano-sized ZSM-5 zeolites enable high acrolein selectivity under notably milder conditions (200 °C, 1.2 MPa). 0.3 % Fe-modified ZSM-5 (60) catalyst exhibits an acrolein yield rate 2.4 times higher than unmodified zeolite, achieving 41.3 % glycerol yield with 84.2 % selectivity. This enhancement originates from a tailored Brønsted-Lewis acid synergy, wherein Brønsted sites steer the reaction pathway while adjacent Fe-derived Lewis sites promote the dehydration steps. This study not only provides an efficient low-temperature strategy for glycerol conversion but also clarifies the role of acid-site synergy in liquid-phase dehydration, offering a rational approach for designing durable and selective catalysts. A series of ZSM-5 catalysts with varying Si/Al ratios were synthesized via a one-pot hydrothermal method, among which ZSM-5 (60) was identified as the optimal candidate due to its appropriate Brønsted acidity. To further enhance the cycling stability, an Fe-modified ZSM-5 catalyst was constructed by the introduce of Fe, which generated additional Lewis acid sites, creating a synergistic Brønsted-Lewis acid system. In the low-temperature (200 °C) dehydration of glycerol to acrolein, the Fe/ZSM-5 (60) catalyst achieved an acrolein yield 2.4 times than that of the unmodified ZSM-5 (60), while also exhibiting significantly improved resistance to coke formation. Download: Download high-res image (323KB) Download: Download full-size image
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ChemistrySelect
·
2026
·Vol. 11
·期 13
·e05885
·
IF 2.3
Yongzhi Pu,Wenbo He,Yanting Zhang,Ning Li,Zelong Li,Jiayin Wang,Yunlong Ding,Xiaofeng Li
A novel organosiloxane (KHPA) was synthesized using 3-glycidyloxypropyltrimethoxysilane (GPTMS) and propylamine as raw materials. The effects of KHPA addition on the physicochemical properties of hierarchical ZSM-5 zeolite were investigated. The synthesized zeolite samples were systematically characterized by x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), low-temperature N 2 adsorption-desorption, x-ray fluorescence (XRF), thermogravimetric (TG) analysis, and ammonia temperature-programmed desorption (NH 3 -TPD). The results indicated that the addition of KHPA into the synthesis system hindered the growth of zeolite crystals, leading to the formation of abundant inter-crystalline mesopores. When the KHPA addition amount was 6 g, the synthesized sample exhibited the highest external surface area (303.5 m 2 /g) and mesopore volume (0.38 cm 3 /g), and the SEM and TEM images revealed intergranular mesopores formed by the stacking of nanoparticles. Furthermore, the Z-KHPA-6 sample exhibited optimal catalytic performance in the trimethylbenzene isomerization reaction, demonstrating a 1,2,4-trimethylbenzene mass conversion of 36.26%, 1,3,5-trimethylbenzene mass yield of 22.61%, and 1,3,5-trimethylbenzene selectivity of 62.36%. Graphical Using GPTMS and propylamine as raw materials, a novel organosiloxane KHPA was synthesized as a mesoporous template. A hierarchically porous ZSM-5 zeolite was successfully prepared via the hydrothermal method. The introduction of KHPA into the synthesis system impeded the crystal growth of the zeolite, resulting in abundant intercrystalline mesopores. This unique pore structure effectively enhanced the isomerization of 1,2,4-trimethylbenzene, significantly improving catalytic efficiency and reaction selectivity.
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POLYMER ENGINEERING AND SCIENCE
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2026
·
IF 3.6
Hafiza Aroosa Aslam Khan,Naveed Ramzan,Asif Jamil,Ghulam Rasool,Muneerah Alomar,Muhammad Sarfraz
Decarbonization is essential to address climatic variations caused by greenhouse effects. Membrane-based separation processes present an energy-efficient and scalable pathway for flue gas purification. Permeability-selectivity trade-off of polymeric membranes can be mitigated through combined impregnation of bi-fillers within polymer matrix coupled with applying ultrathin secondary polymer coating to fabricate efficacious dual-layer composite membrane. Microporous activated MOF-5 nanocrystals with high surface area and CO 2 affinity, combined with graphene nanoplatelets possessing exceptional CO 2 uptake, were synergistically embedded into flexible polysulfone matrix. Biodegradable poly(vinyl alcohol) coating layer was uniformly deposited onto doped polysulfone substrate, yielding novel class of anisotropic dual-layer mixed matrix composite membranes, rendering drastically improved CO 2 /N 2 selectivity of 70 and upgraded CO 2 permeability of 92 Barrer as compared to bare polysulfone membrane. Advanced characterizations verified uniform nanofiller dispersion, strong interfacial bonding, and enhanced thermal stability. Five percent PVA coating boosted thermal stability and improved mechanical robustness by 84%, markedly strengthening membrane structural and thermal resilience. An effective strategy is introduced to produce dual-layer membranes with remarkable CO 2 capture performance via optimized bi-filler loading and PVA based surface modification. Highlights Solvothermal synthesis of highly microporous activated MOF-5 nanocrystals. Preparation of Zn-BDC MOF- and graphene nanoplates-embedded composite membranes. Enhanced nanofiller-polymer interfacial compatibility furnishing uniform filler dispersal. Constructing a dual-layer composite membrane by depositing an ultrathin poly(vinyl alcohol) layer. Marked improvement in decarbonization performance of prepared multilayered membranes.
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ChemCatChem
·
2026
·Vol. 18
·期 16
·e71016
·
IF 4.1
Zhuoxi Li,Chengen Ho,Jun Shi,Rui Chen,Yicun Cai,Bin Li,Tianhao Li,Qiang Chen,Jinyuan Liu,Tongwen Yu
The catalytic selectivity of heterogeneous reaction can be effectively regulated by the design of the thickness of zeolite in zeolite-supported noble metal catalysts. Herein, taking the industrially important hydrogenolysis of the biomass-derived compound vanillin as an example, ZSM-5 zeolite with a thinner b -axis (75 nm) loaded with platinum particles (denoted as Pt/ut-ZSM-5) exhibited 99% conversion and 97% selectivity toward the target product 2-methoxy-4-methylphenol. In contrast, the ZSM-5-supported platinum catalyst with a longer b -axis (175 nm) showed only 63.4% conversion and 50% selectivity, respectively. Molecular dynamics simulations reveal that the translocation times for intermediate vanillyl alcohol through thinner ZSM-5 is longer than vanillin, and the diffusion of 2-methoxy-4-methylphenol in thinner ZSM-5 is faster than that of vanillin. The dynamics of vanillin, vanillyl alcohol and 2-methoxy-4-methylphenol exhibit discontinuous behavior, accompanied by intermittent kinetic restrictions arising from free energy barriers within the straight tunnel of ZSM-5. The translocation times of vanillin and vanillyl alcohol through the thicker ZSM-5 zeolite are typically longer than those through the thinner one; the movement of vanillyl alcohol is still slower than vanillin in thicker zeolite. The slower release of intermediate vanillyl alcohol in both thinner and thicker ZSM-5 demonstrates the possible rate-limiting step in the reaction-diffusion process. Graphical Ultrathin b -axis ZSM-5 accelerates the diffusion of reactants and intermediate by-products to the external surface, where they react with the supported Pt particles, resulting in excellent catalytic hydrogenation performance. Under mild conditions, the catalyst achieved complete vanillin (VAN) conversion and over 97% selectivity toward 2-methoxy-4-methylphenol (MMP).
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CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2026
·
IF 4.7
Ren Yue,Miao Yuhang,Ren Qinghui,Wang Shen,Zhang Liyi,Li Ling,Pan Dengke,Zhou Hua,Shao Mingfei
Biomass conversion to building blocks powered by renewable electricity offers a promising route toward low-carbon plastics, as exemplified by the electrooxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). However, this field is limited by a scalable electrocatalyst that can be operated at a large current. Here, we report a facile and scalable Cu-Co bimetal oxide (Cu-CoO x ) electrocatalyst for efficient HMF oxidation. Comprehensive studies reveal that Cu promotes hydroxyl adsorption to form Co(OH) 2 and converts to CoO x (OH) y via electrooxidation. The Cu-CoO x catalyst was evaluated in a continuous-flow reactor with 200 cm 2 of electrode area, achieving high Faradaic efficiency (92.49%) and selectivity (ca. 89%) toward FDCA at large operation currents (40–200 A). Moreover, this reactor was operated at 100 A for more than 100 h, reaching high single-pass conversion efficiency (96.5%) and FDCA selectivity (95.5%). This work provides a foundation for the development of stable and large-area electrodes to enable scalable FDCA electrosynthesis.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Yutong Wang,Hongxu Liu,Junhao Guo,Xi Chen,Yajie Tian,Kangjun Wang
The upcycling of thermoset epoxy resins remains challenging due to their highly cross-linked and chemically inert network structures. Herein, an efficient catalytic hydrodeoxygenation (HDO) route is developed for the direct conversion of bisphenol A-based epoxy resin into aviation-fuel-range cycloalkanes over Ni/HZSM-5 catalyst. Under mild conditions (220 °C, 4 MPa H2), the optimized 15Ni/HZSM-5(360) catalyst achieves a total cycloalkane yield of 92.4%, with the C15 dicycloalkane propane-2,2-diyldicyclohexane accounting for 78.5%. Systematic tuning of Ni loading and support acidity reveals that a balanced interplay between Ni hydrogenation sites and moderated Brønsted acidity is essential for promoting selective C–O bond scission while suppressing excessive C–C bond scission. Time-dependent product analysis suggests C15 cycloalcohols as key intermediates, elucidating a stepwise depolymerization and HDO pathway. Combined techno-economic analysis and life-cycle assessment further demonstrate the economic competitiveness and environmental viability of this catalytic strategy for epoxy resin waste valorization.
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