DESALINATION
·
2026
·
IF 9.9
Jingbo Su,Aoqi Xing,Junxu Hu,Yun Wu,Jinghui Zhou,Jingyu Xu,Xing Wang
In response to water scarcity and energy crises, solar-driven interfacial evaporation technology offers a highly promising industrial solution for seawater desalination due to its “zero energy consumption” and environmentally friendly characteristics. The aromatic ring structure of lignin exhibits excellent light absorption properties, making it a highly suitable material for interfacial evaporation photothermal applications. This study employs electrospun lignin nanofiber membranes that have undergone high-temperature carbonization, with Fe₃O₄ nanoparticles in situ loaded onto their surfaces to form a photothermal layer. Polyvinylidene fluoride (PVDF) serves as both a binder and hydrophobic modifier, bonding at the interface with delignified wood blocks (DW). Based on this design, the fabricated LCNFs/Fe₃O₄@DW evaporator achieves an evaporation rate of 1.76 kg·m −2 ·h −1 under one standard solar irradiance, with an evaporation efficiency of approximately 88.54%, outperforming most conventional wood-based or carbon-based photothermal evaporators. Long-term cycling tests and simulated seawater evaporation experiments demonstrate the material's excellent salt resistance and purification durability. In summary, this study not only validates the application potential of lignin-based nanofiber composites in solar thermal conversion but also achieves functional integration of “solar desalination, salt resistance and scale prevention, and water purification” through precise Janus surface design. It provides a novel strategy that combines environmental sustainability with practical applicability for industrializing solar-driven interfacial evaporation technology.
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高影响因子
GREEN CHEMISTRY
·
2026
·
IF 9.2
zonghao xu,Zongyu Guan,Yan Song,Xiran Zhao,Yaodong Yuan,Zhipeng Yan,Junhang Tian,Xueyi Sun,Biwei Xiao,Weidong Zhuang
Direct recycling of spent LiFePO₄ (LFP) cathodes is a sustainable and energy-efficient strategy for recovering valuable materials while preserving the intrinsic olivine structure. Herein, we report a LiI-assisted regeneration approach that achieves electronic structure reconstruction and reinforced Fe–O d–p orbital hybridization, enabling simultaneous repair of structural defects and enhancement of Li⁺ transport kinetics. The reductive I⁻ ions promote Fe³⁺→Fe²⁺ conversion and effectively eliminate Fe–Li antisite defects, while Li⁺ replenishment restores the stoichiometry of degraded LFP. Density functional theory (DFT) calculations reveal that LiI triggers a downward shift of the Fe 3d band center and an upward shift of the O 2p band center, narrowing their energy separation and strengthening Fe–O covalency. These electronic modifications reduce Li⁺ migration barriers and reconstruct continuous Li⁺ transport channels, as further validated by ab initio molecular dynamics simulations. In-situ XRD measurements confirm reduced unit-cell volume fluctuations and enhanced FeO₆–PO₄ framework stability, demonstrating improved structural reversibility during cycling. Benefiting from this coupled structural–electronic reconstruction, regenerated LFP delivers 146.9 mAh g⁻¹ at 1 C and retains 97.4% capacity after 500 cycles, outperforming the spent material. This work proposes a green and low-energy direct regeneration route for cathode materials and provides important theoretical guidance for their efficient repair and regeneration.
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FLUID PHASE EQUILIBRIA
·
2026
·
IF 2.7
Shuo Wang,Jingjing Zhou,Jingjian Li,Yanmin Song,Bowen Zhang,Dandan Han,Junbo Gong
As a key intermediate in the synthesis of anticancer agents, 5′-O-Dimethoxytrityl-N-benzoyl-deoxycytidine (Bz-Dmt-dC) usually presents as a solvate and its purity plays a critical role in the production process. To obtain high purity products quickly and efficiently via crystallization, the solubility data of the compound must first be determined. Therefore, under the premise of ensuring no phase transitions during the measurement process, the solubility of solvates formed by Bz-Dmt-dC in three binary solvent systems (acetonitrile + water, acetone + water, and THF + water) were experimentally determined over the temperature range of 278.15 to 313.15 K at atmospheric pressure using the gravimetric method. The experimental results showed that, for a given solvent type and composition, the solubility of Bz-Dmt-dC increased with increasing temperature. The solubility data of Bz-Dmt-dC were correlated using the modified Apelblat, λ h, and NRTL equations. Among these, the modified Apelblat model provided the best fitting result, as indicated by the lowest average relative deviation (ARD) values of 0.7%.
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Small
·
2025
·
IF 12.1
Jiajie Xu,Tenghui Jin,Wei Qu,Kaizhou Huang,Zhiyu Liu,Ping Zhang,Jiaping Paul Chen
Development of high-performance photocatalysts for persulfate activation is often limited by rapid electron–hole recombination and insufficient quantum efficiency. To overcome the challenges, electronic metal–support interaction (EMSI) structure is designed. The innovative structure has several key benefits: recombination rates are significantly reduced, charge separation is enhanced, and content of active sites and intrinsic catalytic activity are increased. ZrO 2 /Co 3 O 4 bimetallic oxides featuring a synergistic Co─O─Zr EMSI coordination are synthesized via a sol-gel method. Strong EMSI effects markedly modulate and stabilize the Co 3d electronic structure, creating an electron-rich center on Co sites to promote persulfate activation, and an electron-deficient center on Zr sites to adsorb atrazine. The Gibbs free energy analysis reveals that Zr incorporation reduces the overpotential of oxygen evolution reaction, thereby facilitating electron transfer, promoting hole consumption and suppressing charge recombination. More importantly, it promotes the generation of reactive oxygen species—predominantly via a singlet oxygen ( 1 O 2 )-dominated non-radical mechanism. The optimized catalyst achieves 97.3% degradation of atrazine (a model compound) under visible light, outperforming commercial catalysts (e.g., 4.5-fold of Co 3 O 4 ). The work elucidates the cooperative mechanism of dual-site engineering and EMSI-mediated electron redistribution, providing a rational strategy for designing efficient photocatalysts toward sustainable advanced oxidation processes.
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PubMed
高影响因子
SYNTHETIC METALS
·
2014
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IF 2.222
Fang Liao,Siwei Yang,Xiubing Li,Shuai Yan,Chenshu Hu,Ling He,Xinyuan Kang,Xun Song,Tongyan Ren
The amorphous structure of conducting polymers (CPs) has made it difficult for the researcher to get regular crystallike CP nanoparticles (such as: cube, triangle, polygon and polyhedron) without template. This paper brings forward a new idea for to get regular crystallike CP nanoparticles via the structure-directing role which can be attributed to the dipole and π–π interaction between oligomers . The regular hexagonal prism or equilateral triangle shapes PoPD nanoparticles can be easily prepared with our new way. The mechanism is proved by analyzing the morphology of precursor at the early stage of hydrothermal progress. We also explored the feasibility of using nano-sized PoPD hexagonal prisms for Cu 2+ supersensitive fluorescence detection. The ultra-sensitive of PoPD hexagonal prisms is remarkable.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Siyu Wu,Zining Qiu,Yuan Zhang,Xiaoya Zhao,Mingchen Zhou,Le Zhang,Cheng-Peng Li,Zhenhua Yan,Hongming Sun
Construct PtCu/CeO 2 heterojunction to resolve alkaline HER activity-stability trade-off dilemma. • Form strong Pt-O-Ce interfacial bonds to restrain Pt oxidation and metal leaching. • CeO 2 serves as efficient promoter to drastically accelerate water dissociation step of alkaline HER. • Assembled AEMWE cell delivers 2500 h ultra-long stability at industrial current density. The persistent activity-stability trade-off in electrocatalysts, driven by the dynamic evolution of active sites, severely limits the practical application of anion exchange membrane water electrolysis (AEMWE). Herein, we construct a robust PtCu/CeO 2 heterostructure that simultaneously achieves superior activity and long-term durability for alkaline hydrogen evolution reaction (HER). The catalyst exhibits an ultralow overpotential of 10 mV at 10 mA cm −2 and a small Tafel slope of 23.2 mV dec −1 , significantly outperforming conventional Pt/Ni(OH) 2 and Pt/C electrodes. In a full AEMWE cell, the PtCu/CeO 2 ||NiFe LDH system requires only 1.71 V to reach 1 A cm −2 and maintains stable operation for 2500 h with negligible decay, ranking it among the best-performing alkaline HER catalysts. Mechanistically, Cu alloying optimizes the hydrogen adsorption energy of Pt, while CeO 2 acts as an effective water dissociation promoter to accelerate the overall reaction kinetics. Moreover, strong Pt-O-Ce interfacial bonding between the thermodynamically stable CeO 2 and PtCu alloy, together with significant hybridization of Pt 5d/Cu 3d and Ce 4 f/O 2p orbitals, effectively suppresses the dissolution and oxidation of Pt sites. thereby enhancing the durability of the catalyst under high-current-density operation. This work offers a viable strategy to overcome the activity-stability dilemma in HER catalysts for industrial AEMWE. Download: Download high-res image (142KB) Download: Download full-size image This work presents a robust PtCu/CeO 2 heterostructure that breaks the activity-stability trade-off in alkaline HER for AEMWE. CeO 2 acts as an efficient water dissociation promoter, accelerating the Volmer step. It also serves as a thermodynamically stable scaffold. Strong Pt-O-Ce interfacial bonding optimizes the electronic structure and suppresses Pt dissolution and oxidation. This catalyst achieves superior activity with an overpotential of 10 mV at 10 mA cm −2 . In a full AEMWE cell, it demonstrates stable operation for 2500 h at 1 A cm −2 .
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AICHE JOURNAL
·
2023
·Vol. 69
·期 9
·e18149
·
IF 3.7
Yongxiao Tuo,Ying Meng,Qing Lu,Qing Wang,Furong Jia,Yan Zhou,Xiang Feng,Jun Zhang,Xuezhi Duan,De Chen
The enhancement of catalytic activity is always limited by the dilemma in activation and desorption due to Sabatier principle. Locating the Sabatier optimum by manipulating catalyst electronic structure has been a long-standing challenge in heterogeneous catalysis. Herein, we presented a generic strategy to continuously tailor the Pt 5d state occupancy via tuning the Pt O Mn electronic linkage over Al 2 O 3 -confined MnO x islands, aiming at accommodating the C H cleavage and product desorption capabilities in dehydrogenation of liquid organic hydrogen carriers (monocyclic/bicyclic hydrides). Rising Mn valence can decrease the Pt 5d state occupancy through more electron transfer from Pt 5d to O 2p due to the strong π-donation of O 2p to Mn 3d. This will lead to the lower initial C H activation energy barrier while higher product desorption energy barrier. An intermediate Pt 5d filling of ~8.4 in Pt Mn 2 O 3 /Al 2 O 3 enables the balanced level of product desorption and C H activation, thus ensuring a superior dehydrogenation activity. The electron structure-adsorption-performance modulation mechanism described herein provides a benchmark to locate the Sabatier optimum for the metal catalyst design.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
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IF 9.9
Enhui He,Liying Xue,Zheng Wang,Xuefeng Yan,Liangmin Yu
Nowadays, multifunction is regarded as an advanced development direction of new-generation electromagnetic wave absorption (EMWA) materials to fulfill the ever-growing demands in complex environment and situation. Environmental pollution and electromagnetic pollution are all difficult problems for human beings all the time. Now, there is no multifunctional materials for collaborative treatment of environmental and electromagnetic pollution. Herein, We synthesized nanospheres with divinyl benzene (DVB) and N-[3-(dimethylamino)propyl]methacrylamide (DMAPMA), using a simple one-pot method. After calcination at 800 ℃ in N 2 , porous N, O-doped porous carbon materials were prepared. By regulating the mole ratio of DVB and DMAPMA, the ratio was 5:1 reached excellent EMWA property. Remarkably, the introduction of iron acetylacetonate into the reaction of DVB and DMAPMA was effective in enhancing the absorption bandwidth to 8.00 GHz at a 3.74 mm thickness, which depended on the synergistic effects from dielectric and magnetic losses. Simultaneously, the Fe-doped carbon materials had a methyl orange adsorption capacity. The adsorption isotherm conformed to the Freundlich model. After methyl orange absorption, the EMWA property did not greatly change. Thus, this research paves the way for the creation of multifunctional materials to solve environmental pollution and electromagnetic pollution together.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Jifang Zhang,Chengcheng Suo,Jinde Sun,Wei Li,Sha Luo,Chunhui Ma,Shouxin Liu
In this study, C α –C β and C β –O bond cleavage of β-O-4 model compound (2-phenoxy-1-phenylethanol) were accomplished by electrocatalysis depolymerization process in deep eutectic solvents (DES) systems. We have investigated the application of Ni-Co/C catalysts on working electrode, which were synthesized with impregnation method. The Ni-Co/C with porous structure and abundant active sites, was shown an excellent electrocatalysis activity. Specific structure of Ni-Co/C could provide greatly efficient adsorption and desorption capacity to promote C α –C β and C β –O bond cleavage. Therefore, in this electrocatalysis depolymerization process, the highest depolymerization rate exceeded 90%. And the yields (and conversion rates) of products (including benzaldehyde, acetophenone, benzoic acid, phenol) can reach to 124.08 mg/g (25.05%), 23.29 mg/g (4.15%), 44.64 mg/g (7.83%), 30.3 mg/g (6.9%). Furthermore, the electrocatalysis mechanism of C α –C β and C β –O bond was investigated. The cleavage of C α –C β and C β –O bond was initiated by in situ generated free radicals through Ni-Co/C. Then, the cleavage of C α –C β and C β –O bond were occurred by ·OH and ·O 2 − . The results were showed that the C α –C β bond cleavage was more in line with the β-C elimination and free radical pathways, and C β –O bond cleavage was consistent with direct oxidative addition. The enhanced electrocatalytic efficiency of the low-cost Ni-Co/C electrocatalyst combined with its good chemical stability and selectivity, which offer a promising route for developing an efficient lignin depolymerization technology.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Zhentao Bian,Meng Li,Taoqin Liu,Chengcheng Liu,Yanyan Zhu,Hongxia Cao,Guang Zhu,Hongyan Wang,Chong Chen,Keying Zhang
Recent research interest has increased in the production of heteroatoms-doped porous carbon with controlled morphology from biomass. However, there is still a significant challenge in resolving alkaline solutions that cause equipment corrosion and devising a simple and adaptable approach. In this study, N/O/S co-doped honeycomb-like porous carbons were synthesized from a widely cultivated annual weed ( Hemistepta Iyrata Bunge ) using a simple and eco-friendly method. The sodium hydroxide (NaOH)/urea system was utilized as the pore-forming agent and cellulose solvent, with urea as the nitrogen source. By varying the activation temperature, the as-prepared porous carbon has a high specific surface area (709 m 2 g −1 ), a large total pore volume (0.44 cm 3 g −1 ), and a high heteroatom content of 6.20 at% nitrogen and 8.12 at% oxygen. The prepared porous materials were evaluated as electrodes for supercapacitors . The product (HIB-PHC-750 °C) exhibited a high specific capacitance (353.6 F g −1 at 0.2 A g −1 ) at a carbonization temperature of 750 °C. Additionally, the HIB-PHC-750 °C-based symmetric device with a wide voltage range of 2.0 V possessed a desirable energy density of 44.22 Wh kg −1 at 500 W kg −1 . Moreover, the HIB-PHC-750 °C also demonstrated outstanding cycling stability with 98.2 % capacitance retention after 10,000 cycles. This research provided a facile and favorable alternative method for preparing N/O/S co-doped honeycomb-like porous carbon for electrochemical energy storage devices.
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高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2023
·
IF 6
Jiaxin Chen,Xue Liang,Baohua Kong,Hui Wang,Hongwei Zhang,Jie Tang,Qian Liu,Xin Li
Addition of different (−)-epigallocatechin-3-gallate (EGCG) (0, 100, 200, 500 or 1000 mg/L emulsion) on the interfacial composition and protein-lipid co-oxidation of whey protein isolate (WPI)-stabilised oil-in-water (O/W) emulsions were studied, and underlying mechanisms were also explored. The results indicated that the physical stability of emulsions gradually decreased with the increasing level of EGCG during storage, which clearly verified by decreasing ζ-potential absolute values and increasing droplet size. Moreover, the combination between WPI and EGCG by covalent/non-covalent binding for either adsorbed proteins (AP) or unadsorbed proteins (UAP) led to aggregation and conformational changes in WPI, which confirmed and characterised by electrophoresis, fluorescence quenching, and molecular docking simulation. Meanwhile, the concentration of AP slightly decreased as a function of EGCG level and storage time, however, the UAP showed the opposite change tendency, indicating that EGCG could effectively modulate the interfacial adsorption property of WPI in O/W emulsions. In addition, the incorporation of EGCG efficiently suppressed protein-lipid co-oxidation of O/W emulsions during storage, which was illustrated by hierarchical cluster and correlation analysis between protein and lipid oxidation products. Our results clearly revealed the viability of the EGCG to modulate the interfacial composition and retard the co-oxidation of O/W emulsions with enhanced storability.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2023
·
IF 7.2
He Xiao,Xuemin Yang,Man Zhao,Rong Zhang,Yanying Jing,Li Zhang,Yingluo He,Haishun Wu,Jianfeng Jia
To promote kinetic rate of half reactions in water splitting, we synthesized a bifunctional PtFe/graphene with dual active sites by a facile self-designed four-electrode electrochemical method . Characterization data indicate interfacial oxygen bridge structure of Pt–O–Fe is expectedly formed and electrons transfer from Fe to Pt via this bridge structure. This unique interfacial structure not only regulates electronic structure of Pt and Fe, but also offers interfacial electron-transfer channel to improve overall conductivity, which essentially enhances intrinsic activity towards acidic HER and alkaline OER . For HER , the best Pt–Fe/G shows the mass activity of 4239.3 mA mg −1 at −0.063 V, 3.79 times higher than that of Pt/G (1118.5 mA mg −1 ) and 5.02 times higher than that of commercial Pt/C (843.1 mA mg −1 ) catalyst, respectively. Introduction of Fe to Pt decreases the energy barrier of HER process (ΔG∗), and results in conversion of rate-limiting step from H + adsorption (Volmer step) to H∗ desorption (Tafel step). For OER , the greatest PtFe/G exhibits an overpotential of lower 26 mV (10 mA cm-2) than commercial RuO 2 and its mass activity is 16.7 times higher than Fe/G. The formed Pt–O–Fe bond effectively elevates the electrophilic properties and facilitates adsorption of OH − , contributing to the change of rate-limiting step and enormous decrease of reaction activation energy (E a ). This work inspires researchers to construct efficient interfacial oxygen bridge structure to enhance electrocatalytic performance for water splitting and design novel electrochemical method for synthesis of graphene-based composites.
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危险品化学品经营许可证（带存储）