FUEL
·
2025
·
IF 7.5
Badusha Mohamad Ali,Hao Zhang,Lei Wang,Ziqi Yu,Chenbing He,Tangxin Zhang,Kaisen Jiang,Weiheng Liu,Jiayuan Wang,Lingyu Zhu,Jianli Wang
The production of biodiesel from renewable feedstocks through energy-efficient processes remains a pressing challenge. Pickering emulsions, stabilized by solid particles, have emerged as a promising approach to enhance biodiesel production. This study presents the synthesis of dumbbell-shaped Janus polymer nanoparticles (DS-JPNs) functionalized with organic amine bases, which serves as Pickering interfacial catalysts (PICs) for transesterification reaction. The anisotropic morphology and amphiphilic nature of DS-JPNs promote stable adsorption at the soybean oil-methanol interface, leading to reduced interfacial tension, smaller droplet formation, and the generation of thermodynamically stable emulsions. This microreactor system prominently enhances the interfacial area and mass transfer efficiency, thereby accelerating the transesterification efficiency. Consequently, the DS-JPN-TMA catalyst achieved a biodiesel yield of 85.4 % under static conditions, a 2.6-fold increase compared to the spherical PS-TMA counterpart (34.2 %). Among the examined Janus organic base catalysts, DS-JPN-TBD demonstrated the highest catalytic performance (TOF 12.51 h −1 ), attaining a biodiesel yield of 96.7 %, attributable to the strong basicity of its bicyclic guanidine moieties. Furthermore, DS-JPN-TBD retained 94.2 % of its catalytic activity after five reaction cycles, evidencing excellent reusability and durability. This study underscores DS-JPN-TBD as an innovative, energy-efficient, and sustainable solution for biodiesel production and proposes a scalable strategy for green energy applications.
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高影响因子
Results in Engineering
·
2026
·
IF 9.4
Huiyong Zeng,Tianmeng Lei,Lifeng Chen,Heng Zhang,Dongdong Liu,Yunbo Dong,Minghao Xue
This paper addresses two problems associated with weakly cemented reservoirs: sand production coupled with high water cut. To overcome two issues, two sand stabilization and water control agents PDDM and PDKM, which feature electrostatic, associative, and hydrogen bonding interactions, were fabricated using acrylamide (basic skeleton), methacryloxyethyltrimethyl ammonium chloride (electrostatic adsorption), styrene (association bridge), and two hydrogen bonding monomers as raw materials. The two hydrogen bonding monomers are γ-methacryloxypropyltrimethoxysilane and 2,4-diamino-6-diallylamino-1,3,5-triazine, which function to enhance adsorption and bridging. Their chemical structures were verified. Our main conclusions are: (1) As the hydrogen bonds formed between hydroxyl groups are stronger than those between amino groups, the intermolecular network structure in PDKM is denser than that in PDDM. As a result, the sand stabilization and water control performance achieved using the former is improved by 10%-40% compared to the latter. (2) The results of theoretical (DFT) simulations and atomic force microscopy (AFM) experiments on the two compounds imply that the molecule-molecule (-0.065 Ha) and molecule-quartz sand (-0.085 Ha) interaction energies using PDKM are stronger than those in PDDM. The adhesion force between its adsorption layer and quartz sand is also stronger (122.9 nN). (3) The sand stabilization and water control performance of PDKM is over 40% better than that achieved using the industrial product MEP. Our results show there is sufficient theoretical and experimental evidence to support the use of PDKM in loose weakly cemented reservoirs to reduce costs and increase the extraction efficiency, thus improving the industrial exploitation of these valuable resources.
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 7
·e70668
·
IF 3.8
Ben-Qing Huang,Ji-Zhen Hu,Ning Ding,Zhan-Jian Liu
Nanofiltration (NF), an emerging technology for water treatment, is recognized for its energy efficiency, environmental friendliness, and high performance. Improving the antibacterial characteristics of NF membranes is crucial for expanding their practical applications. Herein, a novel thin-film composite (TFC) NF membrane was fabricated through interfacial polymerization (IP), during which silver modified polymeric nanoparticles were strategically incorporated into the nascent polyamide (PA) network. The resultant NF membranes exhibited a marked increase in permeability, achieving a flux of 85.6 L m −2 h −1 while maintaining a Na 2 SO 4 rejection of 97.6%. Under various operational conditions, the membrane demonstrated promising NF performance and stability, indicating its good application prospects. Furthermore, the membrane exhibited significant inhibiting effects against Escherichia coli and Staphylococcus aureus . The present work establishes a novel pathway for fabricating high-performance NF membranes with inherent antibacterial functionality, thereby offering significant potential to broaden the practical application scope of NF-based separation technologies.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Zhang Yong,Jiao Gongao,Ding Zuozhe,Zhang Dongzhi
Hydrogen Sulfide (H 2 S) gas can cause physiological discomfort at low concentrations and is lethal at high concentrations. It is one of the major pollutants in the petrochemical industry. In this article, carbon-modified WO 3 nanoparticle gas-sensitive sensing materials were synthesized using the hydrothermal method, and high-performance H 2 S gas-sensitive sensing devices were fabricated. At a doping ratio of 2:3, the optimal working temperature for the carbon-modified WO 3 (C-WO 3 ) nanoparticles is 160 °C. It exhibits a response value of 23.7 for 10 ppm of H 2 S gas, with a response and recovery time of 6 s/64 s. The material demonstrates excellent selectivity, repeatability, and long-term stability for detecting H 2 S gas. These outstanding performance characteristics make it a promising candidate for H 2 S gas detection applications. This modification enhances the material’s gas-sensing performance and its resistance to interference. Finally, first-principles calculations revealed the mechanism behind the improvement in the H 2 S gas-sensing performance of carbon-modified WO 3 sensing materials.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Ren Lijuan,Hu Xiuli,Wang Shuyu,Shi Jiaqi,Gong Jiaxing,Wang Manyun,Zhou Ji,Wang Jianzu,Lv Xian-Wei,Bielawski Christopher W.,Geng Jianxin
Zinc−air batteries are promising devices for use in safe and cost-effective energy storage applications. However, their practical utility is hindered by sluggish oxygen evolution and oxygen reduction reactions. We show that hybridizing electronically coupled Co single atoms and a CoPd alloy within a three-dimensional macroporous N-doped carbon (CoPd/Co@3D NC) enables high-performance N 2 H 4 -assisted zinc−air batteries, where the oxygen evolution reaction is replaced with the thermodynamically more favorable hydrazine oxidation reaction. Experimental and theoretical data reveal that electronic coupling between the Co single atoms and the CoPd alloy mutually modifies their electronic structures, which, in turn, weakens oxygen adsorption on the Co single atoms and enhances N 2 H 4 adsorption on the Pd sites. The electronic-coupling effect accelerates the rate-limiting steps of the oxygen evolution and hydrazine oxidation reactions. Consequently, N 2 H 4 -assisted zinc−air batteries employing CoPd/Co@3D NC exhibit a small charging/discharging voltage gap of 0.52 V at 100 mA cm −2 , a peak specific power of 151 mW cm −2 , and a specific capacity of 810 mAh g −1 at 10 mA cm −2 ; these values are competitive when compared to those exhibited by conventional zinc−air batteries.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Chen Yini,Ke Jingwen,Ye Wenbin,Zhou Yuxuan,Song Lei,Hu Weizhao,Geng Zhigang,Hu Yuan
The seawater contains approximately 99% of Earth’s bromide reserves. Therefore, the extraction of bromine from the seawater offers a promising approach to ensure a sustainable supply of bromine. However, the traditional electrochemical extraction method for direct bromine extraction are inapplicable, owing to the low concentration of bromide in seawater (~60 ppm). In this work, we develop an electrolysis-driven styrene enrichment process for efficient bromide recovery from seawater. As for the electrooxidation of bromide, we screen a series of metal phthalocyanines supported on carbon nanotube as the electrocatalysts. Through accelerating the bromine evolution reaction and suppressing the side reaction, nickel phthalocyanine supported on carbon nanotubes exhibit the highest activity with the Faradic efficiency of 97.8% for bromine production among all catalysts. Coupling this catalyst with the ESE process for direct bromine extraction from the Yellow Sea’s seawater, the extraction efficiency of 90.0% is achieved with the product of pure KBr powder. Moreover, the co-produced styrene oxide can be efficiently separated via vacuum distillation, significantly promoting the economic value of this ESE process.
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PubMed
高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Zhang Luo,Weijia Xiao,Bing Liu
Active colloidal systems, driven by self-propulsion and collective dynamics, offer a non-equilibrium route to soft materials. Realizing such materials hinges on creating novel active systems and deciphering their collective behavior. Here we present a new type of ring-shaped, partially-coated Pt-SiO 2 colloidal micromotor and report our finding that the sign of the surface charge plays a crucial role in determining the propulsion speed and reversing the living crystallization behavior. Our results show that negatively charged ring-shaped micromotors can achieve high propulsion speeds exceeding 20 µm s − 1 at 0.5 wt% H 2 O 2 solution, whereas positively charged rings move much more slowly. We further find that negatively and positively charged rings always exhibit opposite living crystallization behaviors: if one type can crystallize, the other cannot. We reveal that this opposite crystallization behavior stems from the consistently opposite EO flow directions, irrespective of whether the flow field is symmetric or asymmetric. Living crystallization occurs only when the inward EO flow region exceeds 50% of the ring circumference. By combining experiments and numerical simulations, we demonstrate that the sharp difference in the flow fields between oppositely charged ring-shaped micromotors originates from the different surface charge signs of the rings and the substrate.
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高影响因子
LANGMUIR
·
2026
·Vol. 42
·期 29
·21226-21235
·
IF 4.4
Li Yuanyuan,Jiang Wen,Wan Caiwen,Shi Jiarong,Zhang Hanyun,Zhang Di,Yang Dingfeng
The heterogeneous semiconductor photocatalytic synthesis
of organic
molecules holds significant potential in green catalysis. In this
work, we report the introduction of phosphorus (P) into ZnIn 2 S 4 to achieve photocatalytic trifluoromethylation of styrene.
Although P-doping does not enhance the yield of trifluoromethylacetophenone
(28–30%, comparable to pristine ZnIn 2 S 4 ), it significantly improves the photostability of the catalyst.
Meanwhile, P-doping reduces the oxidation potential and enhances the
separation efficiency of photogenerated charge carriers, radical trapping
experiments and electron paramagnetic resonance confirmed the involvement
of trifluoromethyl radical ( • CF 3 ), along
with reactive oxygen species (ROS: • O 2 – and 1 O 2 ). Mechanistic investigations
revealed that photogenerated holes oxidize CF 3 SO 2 Na to generate • CF 3 , which, together
with ROS derived from electron reduction, promote the addition to
styrene to form trifluoromethylacetophenone. This study provides a
foundation for heterogeneous photocatalytic trifluoromethylation of
unsaturated hydrocarbons in arenes.
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PubMed
高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Manzoor Sughra,Ullah Saif,Wang Xiaoyan,Gao Hui,Tan Bien
The susceptibility of highly active phosphine ligands
to oxidation
limits their utility in developing robust, recyclable heterogeneous
catalysts capable of multistep coupling reactions. Herein, we address
this by immobilizing synergistic, well-defined N -heterocyclic
carbene (NHC)-phosphine palladium complexes into a rigid hyper-cross-linked
porous polymer (HCP) network via one-pot knitting polymerization.
The resulting material, IPr–Pd–PPh 3 @HCP,
exhibits a high surface area (1260 m 2 g –1 ) and a micro/mesoporous structure, ensuring efficient accessibility
of reactants. The central innovation stems from the deliberate pairing
of a sterically encumbered NHC ligand, which stabilizes the palladium
center and lowers the barrier for oxidative addition, with a comparatively
π-accepting phosphine (PPh 3 ) ligand that electronically
modulates the metal center to accelerate reductive elimination and
overall catalytic turnover. This dual-ligand architecture establishes
a finely tuned electronic and steric environment around the Pd center,
thereby enabling the efficient activation of challenging, less reactive
aryl bromides and even aryl chlorides under mild conditions. The IPr–Pd–PPh 3 @HCP catalyst demonstrated excellent performance in Mizoroki–Heck,
Sonogashira, and Carbonylative Sonogashira couplings, achieving yields
up to 99% with a low Pd loading of 0.15 mol %. Furthermore, it exhibited
remarkable recyclability, maintaining over 90% yield across ten consecutive
cycles. The use of a safe CO surrogate (dicyclohexylcarbodiimide/formic
acid) in carbonylative reactions enhances the practical utility of
this system. The combination of a sterically demanding NHC ligand
and a comparatively π- accepting phosphine ligand
creates a synergistic environment that suppresses phosphine oxidation.
The rigid HCP network additionally imparts mechanical robustness and
spatial confinement, protecting the stabilized active sites from deactivation
pathways such as aggregation or leaching, thereby ensuring long-term
catalytic stability and making IPr–Pd–PPh 3 @HCP a versatile and sustainable catalyst for industrially relevant
Pd-catalyzed cross-coupling reactions.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Ben-Qing Huang,Ning Ding,Ji-Zhen Hu,Zhan-Jian Liu
Nanofiltration (NF) technology is an important technique for addressing the global water crisis, but the bacterial fouling in long-term running reduces the lifetime and limits the application of NF membranes. To solve this problem, a kind of sandwich-shaped thin-film composite (TFC) polyamide (PA) membranes with silver combined polymeric nanoparticles (PNs/Ag) as interlayer was fabricated in this work. Analysis via energy-dispersive spectroscopy (EDS) and field-emission scanning electron microscopy (FE-SEM) confirmed the successful formation of a silver layer through in situ reduction, which was observed to uniformly encapsulate the polymeric nanoparticle surfaces. The prepared NF membranes had a pure water flux of 71.0 L m −2 h −1 and Na 2 SO 4 rejection of 96.7% at 5.0 bar. The application prospect of NF membranes was proved by a series of testing under different operation conditions. The successful introduction of PNs/Ag enhanced the antibacterial performance of the NF membrane against E. coli and S. aureus in static bacteria adhesion test. This work proposes a feasible strategy for the construction of NF membranes with antibacterial property.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 2.8
Zijuan Luo,Li Ma,Yilong Yao,Xiong Zhao,Junsheng Hou,Zhenzhen Chen,Nanjing Hao
Functional polystyrene (PS) microspheres with unique size and high monodispersity play an important role in biomedical and organic synthesis. However, developing a facile strategy to prepare PS microspheres with predictable size and excellent stability remains challenging. In this study, a facile strategy is developed to prepare PS microspheres, in which sufficient sulfate radicals could be produced to initiate polymerization even without inert gas purging. 0.03 to 3 μm PS microspheres with coefficients of variation (CV) values less than 5% are prepared using optimized dispersion polymerization and emulsion polymerization. The effects of reaction conditions on the size and morphology of microspheres are studied systematically. Emulsion polymerization is utilized to prepare microsphere size less than 600 nm, and then the microspheres with size of 30 to 300 nm are fabricated by varying the copolymerization monomer concentration. Additionally, the reaction is scaled up 400 times (yield: 85%) in a 20 L reactor to further verify the large-scale production ability of PS microspheres (CV ≤ 2%). To broaden the functionality of microspheres, microspheres with variable fluorescence intensity are prepared. The results not only provide a facile strategy for the production of narrow size distribution and high-yield PS microspheres but also expand industrialization and downstream applications.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19
Wanting Su,Ruimeng Wang,Pengfei Yan,Zuxue Bai,Xuehui Jia,Xu Fan,Liqin Zhou,Zhenxia Zhao
Nanoplastic (NPs) pollution represents one of the most persistent environmental crises of our time, requiring breakthrough material technologies for effective remediation. In this study, we engineer a semi-flexible micro-nano structured N-modified cellulose nanofibers@layered double hydroxide (N-CNF@LDH) composite aerogel through a dynamic hydrogen bonding and coordination interactions to achieve efficient removal of NPs, in which the LDH nanoflower clusters are uniformly anchored on the nitrogen-modified cellulose honeycomb skeleton. Under the action of dynamic hydrogen bonds, the structure undergoes spontaneous reorganization at new equilibrium positions upon release of external force, leading to a reversible opening-closing motion within the floral clusters. This design enables ultrahigh NPs adsorption (3648 mg·g −1 ) through reversible inter-petal channel opening, while compression-triggered petal contraction achieves instantaneous release (96% within only 10 s), exhibiting a desorption kinetics rate nearly three orders of magnitude higher than conventional adsorbents. Besides, the dynamic network enables rapid structural reconstruction of N-CNF@LDH through H-bond assembly, maintaining 80.4% NPs capacity and 95.2% shape recovery after 100 cycles. Exhibiting outstanding NPs removal performance in various real-world water systems while remaining cost-effective, this material breaks through the fundamental capacity-regeneration compromise in environmental remediation.
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