LANGMUIR
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2026
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IF 4.4
Yong Li,He Wang,Tianhu Long,Jing Liu,Yulun Nie,Chao Yang,Jianbo Shi
Accurate and sensitive detection of pesticide residues is crucial for environmental safety and human health. Herein, a self-powered metal–organic framework nanozyme-based immunoassay was developed for selective and sensitive detection of isoprocarb by encapsulating calcium peroxide and heme into a Zn-MOF to construct the CaO2/heme@Zn-MOF composite. The prepared nanozyme exhibits intrinsic peroxidase-like activity and enables in situ H2O2 generation under acidic conditions, effectively eliminating the need for external oxidants. By coupling antibody–antigen specific recognition with catalytic signal amplification of CaO2/heme@Zn-MOF, a competitive nanozyme-linked immunosorbent assay was established for selective detection of isoprocarb. The fluorescence signal originating from o-phenylenediamine oxidation gradually decreases with an increase in isoprocarb concentration, allowing quantitative analysis with a detection limit of 0.017 μM. The entire competitive immunoassay can be completed within an optimal detection time of 90 min. Furthermore, the proposed method demonstrates excellent practical reliability and anti-interference capability in real water and agricultural products, achieving quantitative recovery rates ranging from 92.85% to 107.14% with relative standard deviations of less than 5.91%. Furthermore, a portable immunomagnetic bead with paper devices was fabricated for on-site analysis. This work provides a general strategy for integrating self-powered nanozymes with immunoassays, thereby expanding their potential for portable environmental monitoring.
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PubMed
高影响因子
ACS Catalysis
·
2026
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IF 13.6
Shuangfeng Ren,Yihui Li,Ye Chen,Xiaoling Mou,Ziang Zhao,Hejun Zhu,Xiaoyan Liu,Yu Meng,Li Yan,Apoorva Ravi,Amol Amrute,Ronghe Lin,Yunjie Ding
The rational design of selective, earth-abundant Ni-based catalysts for the reverse water–gas shift (RWGS) reaction is often hampered by an incomplete understanding of their operando active states. This study reveals that the CO2 hydrogenation selectivity over Ni–Zn catalysts is governed by a support-dependent, reaction-induced dynamic restructuring, rather than by any static, preformed sites. Through a combination of in situ characterization and theoretical calculations, we demonstrate that the active Ni–Zn intermetallic core encapsulated by ZnO forms dynamically only under the RWGS atmosphere on ZrO2 and TiO2 supports, but not on Al2O3 or during mere H2 reduction. Crucially, we identify in situ-generated CO as the essential inducer of this reconstruction, likely via facilitating ZnO reduction. Furthermore, the product selectivity (CO vs CH4) is dictated by the kinetic competition between CO desorption and its deep hydrogenation, a principle quantitatively linked to the evolved electronic structure of the active surface. This work shifts the paradigm toward designing catalysts that evolve into optimal structures in operando and provides a fundamental kinetic framework for selective CO2 conversion.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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IF 9.1
Honghong Yi,Kai Chen,Hongkun Ni,Yiming Ma,Xiaolong Tang,Qingjun Yu,Fengyu Gao,Shunzheng Zhao
This study employs a synergistic strategy of Zn doping and KOH etching to precisely regulate the physicochemical properties of CeO 2 , significantly enhancing its H 2 S catalytic oxidation performance. Experimental results indicate that Zn doping induces lattice expansion of CeO 2 , while KOH etching further removes Zn, increases Ce 3+ and oxygen vacancy concentrations, thereby optimizing surface acidity-basicity and redox capability. The obtained E-Zn/CeO 2 material exhibits excellent H 2 S conversion, reaction and kinetics, while promoting the selective formation of SO 2 . Mechanistic studies reveal that H 2 S undergoes adsorption and dissociation via μ 2 -OH/–COOH groups on the material surface, with the oxidation process following the MvK mechanism, where oxygen vacancies play a key role in adsorption and lattice oxygen transfer. Theoretical calculations further demonstrate that the synergistic modification induces reconstruction of the electronic structure of CeO 2 , including weakened covalency of Ce O bonds and a spin-state transition of O 2p orbitals, which significantly reduces the oxygen vacancy formation energy (as low as −1.47 eV) and enhances structural stability. This work provides both experimental and theoretical foundations for the rational design of highly efficient H 2 S catalytic materials.
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高影响因子
ACS Sustainable Chemistry & Engineering
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2026
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IF 7.6
Xunzhen Sun,Xiao Zhang,Hui Gu,Jiayi Li,Fei Lu,Long Su,Xinpei Gao
Aqueous zinc–iodine (Zn–I2) batteries are promising for sustainable energy storage owing to their intrinsic safety, environmental benignity, and the highly reversible redox chemistry of iodine. However, water-induced side reactions at the Zn anode and the shuttling effect of polyiodides trigger severe self-discharge and interfacial instability. Herein, a molecular-weaving–inspired strategy was developed, in which topological chain entanglements cooperate with dynamic ionic/coordination junctions to build a dual-cross-linked hydrogel electrolyte. In such weaving-inspired entangled networks, Zn2+-activated junction dynamics dissipate energy and prevent stress localization, while the enduring entanglement preserves network integrity. Simultaneously, the introduction of abundant coordination sites along the polymer backbone reconfigures the local Zn2+ solvation environment and mitigates Zn anode side reactions and dendrite growth. Moreover, these coordinated Zn2+ nodes effectively suppress the polyiodide shuttle without compromising ionic conductivity. Benefiting from these synergistic effects, the designed hydrogel electrolyte enables highly stable Zn plating/stripping, achieving an average Coulombic efficiency of 99.46% in Zn//Cu cells. The assembled Zn//I2 full cells deliver excellent durability with a high capacity retention of 87.8% after 9000 cycles at 5.0 A g–1. This work establishes a viable weaving-inspired design strategy for natural polymer-based hydrogel electrolytes toward durable aqueous Zn–I2 batteries and beyond.
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高影响因子
Journal of Energy Storage
·
2026
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IF 10.7
Keguang Xu,Yongwen Wang,Xinyu Gao,Feng Han,Qin Gong,Ruonan Pan,ChenXiao Liu,Yiran Niu,Gang Wang,Ting Tang,Shaofei Li,Tiantian Gu
Organic materials have emerged as promising cathode materials for aqueous zinc-ion batteries (AZIBs) due to their structural flexibility, inherent safety, and environmental compatibility. Yet, their practical adoption is impeded by challenges such as inadequate cycling stability and complex synthesis. This work presents a facile, two-minute room-temperature stirring method to synthesize key dipyridyl pyrazine derivatives, which include dipyrido[3,2-f:2′,3′-h]quinoxaline (DPQ), dipyrido[3,2-a:2′,3′-c]phenazine (DPPZ), and benzo[ i ]dipyrido[3,2-a:2′,3′-c]phenazine (DPPN). The corresponding molecular design strategy targeted increased active site density, extended π-conjugation, enhanced electron delocalization, and improved charge transfer kinetics. Accordingly, the DPPZ-based electrode delivered remarkable electrochemical performance, achieving reversible capacities of 120.5 mAh g −1 at 0.05 A g −1 and 83.4 mAh g −1 at 5 A g −1 , along with 76.6% capacity retention over 6000 cycles. Moreover, it further exhibited outstanding low-temperature performance, retaining 62.0 mAh g −1 at 1 A g −1 and 95.4% of its capacity after 7000 cycles at −20 °C, indicating its potential for use in low-temperature environments. The energy storage mechanism, based on the reversible co-insertion of Zn 2+ and H + at C N sites, was investigated by employing ex situ characterizations coupled with density functional theory (DFT) calculations. These findings underscore a rapid molecular engineering approach that paves the way for advanced organic electrodes in AZIBs.
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Functional Materials Letters
·
2026
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IF 1
Yang Sheng,Xinyu Zhu,Xingyu Liu,Peng Zhang,Yixin Sun,Rong Zhang
Developing novel materials to improve the global food supply is vital to combat hunger, achieve food security and promote sustainable agriculture. To address this issue, we employed red-emitting Ag-In-S-Zn (AISZ) quaternary quantum dots (QDs) as light converters to fabricate AISZ QDs-loaded ethylene vinyl acetate (EVA) copolymers (AISZ/EVA) films to improve the light conditions for crop growth. The synthesis of AISZ QDs was optimized to achieve a high quantum yield (73%) and an emission band matching the absorption window of chlorophyll a and b. Using EVA resin as the matrix, efficient ultraviolet-to-red light-converting AISZ/EVA films with varying AISZ content were prepared by the solvent evaporation method. The fluorescence and transmittance of these light-conversion films along with a blank EVA control, were characterized. Subsequent 28-day lettuce cultivation under controlled light illumination revealed that the 1.0 wt.% AISZ/EVA film induced maximal growth enhancement. The fresh weight and dry weight were increased by 28.2% and 34.4%, respectively, while the contents of total chlorophyll, chlorophyll a, chlorophyll b, carotenoid, soluble sugars and proteins were increased by 48.8%, 51.3%, 43.8%, 40.8%, 33.6% and 37.2%, respectively. The results demonstrate that broad-emitting AISZ QDs served as efficient light converters to fabricate agricultural light-conversion films, highlighting their broad application prospects and promising commercial potential in controlled environment agriculture.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yuan Zhao,Yu Zheng,Lei She,Qing Shen,Xiang Li,Lin-Feng Chen,Ya-Yang Tian,Tian Liang,Tao Chen,Jie Gao
The persistent residues and accumulation of tetracycline hydrochloride (TC) in aquatic environments will significantly threaten environmental safety and human health. Effectively achieving precise antibiotic removal from pollutant-laden aqueous environments has become a critical technological challenge that urgently needs resolution. In recent years, antibiotic adsorption technologies based on biomass materials have demonstrated considerable potential for immobilizing and removing aqueous pollutants, owing to their low costs and abundant porous structures. This study successfully developed a novel composite material, Co/Zn-ZIFs@pine sawdust, by immobilizing bimetallic ZIFs onto pine sawdust. This composite combines environmental friendliness with high adsorption efficiency and exhibits exceptional performance in removing TC contaminants from water. Comprehensive characterizations were conducted to determine the functional groups, elemental composition, morphology, thermal stability and adsorption mechanisms of Co/Zn-ZIFs@pine sawdust. The impact of diverse factors on TC adsorbing behavior was systematically investigated, including the Co/Zn ratio in ZIFs, initial TC concentration, adsorption time, temperature and aqueous pH. The adsorption well obeys a pseudo-2nd-order kinetic equation (R 2 = 0.999) and the Langmuir isotherm model. Under the optimal pH of 7.0, the Co/Zn-ZIFs@pine sawdust achieved a considerable maximum adsorption capacity of 719.0 mg·g -1 . Notably, the composite exhibited excellent reusability, retaining 64.2% of its initial adsorption capacity after five consecutive cycles. These results demonstrate that Co/Zn-ZIFs@pine sawdust is highly effective for removing TC from aqueous solutions. This research provides a novel approach for remediating antibiotic-contaminated water, and demonstrates significant potential for valorization of biomass wastes.
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高影响因子
ACS Applied Energy Materials
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2026
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IF 5.5
Lingxin Yu,Shicai Xiao,Lina Han,Xiaoyuan Zeng,Yi Xie,Baolong Li,Yudong Sui,Yingjie Zhang,Peng Dong
The modification of TMS nanocrystals on highly conductive carriers (e.g., carbon black, graphene, carbon nanotubes) is an effective strategy to adjust the electronic structure and enhance the exposure of active sites, thereby achieving high-performance bifunctional electrocatalysts. In this study, a simple one-step pyrolysis strategy was employed to anchor FeS particles on a nitrogen-doped carbon electrocatalyst (FeS/NC). It was demonstrated that the use of NC as a carrier enriched the morphological structure, enhanced the specific surface area and graphitization degree, and thereby provided more active sites. More importantly, the strong electronic interaction between FeS and NC is suggested to optimize the free energy between reaction intermediates and adsorption sites, as well as the d-band center of FeS/NC, leading to a 0.19 V higher onset potential than that of pristine FeS. FeS/NC exhibited outstanding bifunctional oxygen catalytic performance for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) (ΔE = 0.87 V), superior to that of FeS and NC. Furthermore, rechargeable zinc-air batteries based on FeS/NC demonstrated a high peak power density (144.08 mW·cm–2), high specific capacity (716.74 mAh·gZn–1), high energy density (724.62 Wh·kgZn–1), and excellent stability.
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高影响因子
ELECTROCHIMICA ACTA
·
2026
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IF 5.8
Yunming Li,Xiaojing Wu,Xinle Sun,Jianuo Wang,Xiangyu Liu,Lingyu Du,Litao Kang
A series of natural gelatinizers is evaluated as alternative binders to replace the conventional PVDF binder. • The waterborne binders can improve both cycling stability and anti-self-discharge performance. • The optimized binder slows the 200 h self-discharge rate from 37% down to 16%, while prolonging the lifetime by ∼ 2.6 times. Aqueous zinc-iodine (Zn-I 2 ) batteries have been identified as one kind of promising energy storage device, but still suffer from self-discharge and short lifetime problems due to polyiodide shuttling. To improve the polyiodide confining ability of the I 2 cathodes, a series of natural gelatinizers, including carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC), polyanionic cellulose (PAC), xanthan gum (XG), and sodium alginate (SA), are evaluated as alternative binders to replace the conventional polyvinylidene fluoride (PVDF). Experimental results suggest that all these water-borne binders can improve the cycling stability of the electrodes by forming a flexible hydrogel skeleton. In addition, the abundant heteroatoms in the binders can effectively adsorb polyiodide and suppress the shuttle effect. As a result, the adoption of these water-borne binders can significantly slow down the self-discharge rate of the resulting Zn-I 2 batteries, compared to the traditional PVDF binder (capacity loss: 16–21% vs. 37%, after 200 h). Among these binders, SA endows the cathodes with the best anti-self-discharging performance (capacity loss: 23.7% vs. 49.3% after 500 h, compared with the PVDF-binder battery). This strategy opens a new avenue to enhance the anti-self-discharge performance of Zn-I 2 batteries with natural polymers. Download: Download high-res image (149KB) Download: Download full-size image
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高影响因子
Small
·
2026
·
IF 11.8
Kun Zhang,Ranfeng Wang,Tao Feng,Yuede Pan,Gang Li,Kaiying Wang,Congwei Wang
Despite their promising potential, the advancement of zinc-ion hybrid supercapacitors (ZHSCs) is significantly impeded by sluggish zinc-ion migration, parasitic side reactions, and dendrite growth, challenges that are exacerbated under low-temperature conditions. Current research predominantly focuses on zinc ions, while the critical role of anions in mediating these degradation pathways has been largely overlooked. Herein, we present a “cation group-driven dual-track regulation” strategy by engineering a cationic hydrogel electrolyte composed of poly(acryloyloxyethyl trimethyl ammonium chloride) (PDAC) and ZnCl 2 . The immobilized quaternary ammonium groups (─N + (CH 3 ) 3 ) electrostatically confine Cl ‒ anions, thereby creating highly efficient Zn 2+ -selective migration channels and suppressing competing side reactions. Simultaneously, these cationic groups adsorb onto high-energy zinc crystal facets, guiding (002)-oriented Zn deposition and effectively inhibiting dendrite growth. The optimized PDAC-based electrolyte delivers a high ionic conductivity of 5.3 mS cm −1 at −50°C, a Zn 2+ transference number of 0.87, and exceptional average reversibility of Zn plating/stripping (98%) in Zn||Cu cells down to −40°C. Moreover, PDAC-optimized ZHSCs demonstrate outstanding cyclability over 20 000 at −40°C (95.2% capacity retention). This work establishes a generalizable electrolyte design paradigm that concurrently addresses kinetic and interfacial limitations, paving the way for dendrite-free, high-performance Zn-based energy storage systems operable under low-temperature conditions.
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DOI
PubMed
高影响因子
CATALYSIS TODAY
·
2026
·
IF 5.1
Nan Yang,Yaru Xue,Zehui Ma,Furang Li,Li Dong,Xiaoxuan Yin,Junhao Liu,Fei Wang,Jianye Fu,Xinmei Liu,Yuchao Lyu
The hydrodeoxygenation (HDO) of lignin-derived guaiacol offers an alternative to fossil-based routes for cyclohexanol production. However, the guaiacol HDO involves multiple parallel and sequential reactions, making the control of reaction pathways particularly challenging. In this work, Co-Zn-based HDO catalysts were synthesized using layered double hydroxide (LDH) as a precursor. The Co particle size decreases and electron density increases, while oxygen vacancy (Ov) concentration rises compared to monometallic Co, yielding higher activity and cyclohexanol selectivity. Most importantly, kinetic study reveals that electron density of Co plays a determining role in governing the HDO pathway. The guaiacol hydrogenation mainly follows two pathways over the Co-based catalyst: guaiacol → phenol → cyclohexanol (Pathway Ⅰ) and guaiacol → phenol → cyclohexanone → cyclohexanol (Pathway Ⅱ). Electron rich Co facilitates C aryl -OCH 3 bond cleavage of guaiacol to form phenol. It also selectively enhances adsorption and hydrogenation of aromatic ring while keeps the hydroxyl group intact as confirmed by the DFT calculations, favoring conversion of phenol to cyclohexanol (Pathway Ⅰ) rather than cyclohexanone (Pathway Ⅱ). These findings provide theoretical guidance for the rational catalyst design and regulation of reaction pathways in guaiacol hydrodeoxygenation.
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高影响因子
Journal of Materials Research and Technology-JMR&T
·
2026
·
IF 7.3
Yunjia Hu,Renli Fu,Zeya Huang,Meng Meng,Jindan Tian,Xing Gao,Yunan Liu
This study developed a soldering process for joining Al to Cu-metallized ceramic substrates, aiming to overcome the formation of brittle intermetallic compounds in Sn-based solders, which usually lead to low joint strength. Zn foils coated with Sn-10Zn or Sn-20In solders were used as hybrid solders to bond Ni-plated Al components to Cu-metallized Al 2 O 3 substrates at 220 °C. With increasing soldering time, the solder on the Zn surface gradually transformed into NiZn 3 , and the formation mechanism of the NiZn 3 phase was analyzed from thermodynamic and kinetic perspectives. The shear strength of the joints increased with prolonged soldering times, reaching a maximum of 67 MPa for the Sn-10Zn/Zn solder at 240 min. In the Sn-10Zn joints, NiZn 3 formed a continuous transition layer that effectively reduced stress concentration. In contrast, the Sn-20In/Zn joints showed discontinuous NiZn 3 layers and significant interfacial stress, resulting in lower shear strength.
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