DIAMOND AND RELATED MATERIALS
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2026
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IF 5.2
Zhen Meng,Huoxing Huang,Shurui Xu,Hang Chen,Xiaobo Fu,Junling Tu,Baizeng Fang,Wenbo Liao,Guoyu Zhong
Precise monitoring is of great significance for diabetes management. In contrast to enzyme-based glucose sensors, nonenzymatic ones offer advantages such as improved stability, higher sensitivity, and reduced manufacturing expenses. In the present research, nitrogen-doped carbon nanotube-encapsulated cobalt particles (Co@NCTs-800) were synthesized via a high-temperature pyrolysis and applied to high-efficiency glucose detection. This material benefits from a large number of Co 4+ active sites formed by electrooxidation, along with the high surface area and conductivity of the N-doped carbon nanotube matrix. As a result, Co@NCTs-800 showed outstanding electrocatalytic properties, achieving remarkable sensitivity reaching up to 141.3 μA mM −1 cm −2 , a rapid response duration of merely 1.9 s, along with a minuscule detection threshold of 2.3 μM. The sensor also demonstrated strong resistance to various interfering substances, good stability and reproducibility (RSD = 3.24%). Furthermore, reliable glucose detection in real beverage samples confirmed the practical applicability of the proposed sensor. The successful fabrication of cobalt particles encapsulated in nitrogen-doped carbon nanotubes offered in-depth understanding regarding the advancement of highly efficient non-enzymatic electrochemical glucose sensing.
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FOOD CHEMISTRY
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2026
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IF 10.4
Qian You,Wenhong Gao,Zhong Han,Xin-an Zeng,Linlin Ye,Yuwen Huang,Yunqi Zhang,Ji Ma
Rapid and accurate quantification of total volatile basic nitrogen (TVB-N) is required to evaluate the freshness of meat products. In this study, a multichannel fluorescence sensing system was constructed by means of two pH-responsive fluorescent dyes and four amine-specific recognition metal nanoclusters as recognition elements. Besides, a continuous fluorescence spectrum was reconstructed by the six-channel fluorescence spectra based on the characteristic response of TVB-N molecules. And a chemometric model was used to establish the quantitative relationship between the reconstructed spectra and TVB-N values. The results indicated that the LS-SVM model exhibited the best performance ( R 2 = 0.951, RMSE = 1.04 mg/100 g). Moreover, this approach enabled accurate detection of TVB-N through simple sample pretreatment in complex food matrices and was successfully applied to the freshness monitoring of beef, chicken, sea bass, and shrimp. This is of great benefit to the rapid and accurate detection of freshness of meat products in cold-chain.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
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IF 3.1
Shijie Tang,Sen Wen,Haiyang Feng,Kesan Yang,Haichuan Li,Shenwen Fang
The highly efficient air flotation hydrocyclone separation technology has been gradually promoted and applied. However, the performance of flocculant reported in the literature needs improvement. In this study, a novel flocculant was synthesized using poly[N-(3-dimethylaminopropyl)methacry] (PDPM) and polyether monoamine (PMA) as the main raw materials. The synthesis conditions of the flocculant were optimized based on the oil removal rate. It was found that when PMA M-2095 was used, the resulting product, Cl-0.4-P-0.2-2095, exhibited the best flotation-flocculation oil removal performance. At a dosage of 20 mg/L and a treatment time of 7 min, the oil removal rate of Cl-0.4-P-0.2-2095 reached 90.63%, which was 31.7% higher than that of the reported flocculant. Mechanistic investigations, including measurements of surface tension, interfacial tension, zeta potential, and interfacial elastic modulus, as well as oil-coated bubble experiments, revealed that Cl-0.4-P-0.2-2095 adsorbs onto the surfaces of bubbles and oil droplets. This adsorption enhances the collision and adhesion efficiency between bubbles and oil droplets, thereby improving the flotation-flocculation oil removal performance. This study provides a novel treatment agent for the efficient treatment of produced water from offshore oilfields.
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Energy Sources Part A-Recovery Utilization and Environmental Effects
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2026
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IF 2.3
Ziye Zhang,Zhongqiang Bao,Zihao Wu,Hao Chen,Liyun Si,Kaifeng Wang,Long Cheng,Jie Zhang
Diesel combustion produces multiple pollutants. Di-n-butyl ether (DBE), a biomass-derived clean fuel, can be used directly in diesel engines. This study uses a constant-volume combustion chamber (CVCC) to investigate the spray and combustion characteristics of diesel/DBE blended fuels (D90DBE10, D80DBE20, D70DBE30, D60DBE40) and compares them with pure diesel (D100). This study focuses on the effects of injection pressure (100–140 MPa), ambient temperature (300–700 K), and DBE blending ratio. Results indicate that DBE addition significantly improves fuel atomization. The spray cone angle (SCA) and spray projected area (SPA) of blended fuels exceed those of D100, while the spray tip penetration (STP) is shorter. When the injection pressure is increased from 100 to 140 MPa, the liquid phase spray projected area (L-SPA) and gas–liquid phase spray projected area (GL-SPA) of D100 expand by 17.31% and 9.32%, respectively, while those of D60DBE40 increase by 27.84% and 8.65%, respectively. The blended fuels exhibit faster flame development and lower soot formation, with D60DBE40 demonstrating the fastest flame propagation and lowest soot radiation. At 140 MPa injection pressure, the KL factor for all blended fuels decreases by 12.62%–16.87% compared to D100. The study indicates that DBE promotes cleaner and more efficient combustion processes, offering a viable fuel optimization pathway for reducing diesel engine soot emissions.
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Materials
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2026
·Vol. 19
·期 6
·1207
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IF 3.7
Mingyang Xu,Xin Li,Lin Xie,Qin Wang,Gang Shi
Surface-enhanced Raman scattering (SERS) has become an effective and sensitive analysis tool for the detection of various molecules. Nevertheless, it is a challenge to fabricate reusable SERS substrates for detecting gaseous molecules. Here, a self-calibrated and reusable SERS substrate has been developed for the quantitative analysis of n-butylamine. The obtained substrate enhances gas enrichment capability through the coordination interaction of Fe2O3with the porous structure of ZIF-8, and strengthens the Raman signal intensity by the localized surface plasmon resonance of Ag nanoparticles. Ethanethiol is employed as an internal standard to enhance analysis accuracy. The substrate exhibits excellent quantitative analysis (linear correlation coefficient, R2= 0.996), signal uniformity (RSD = 6.3%), and batch reproducibility (RSD = 4.8%). Moreover, the substrate achieves self-cleaning through photocatalysis. After five cycles, the substrate retains high SERS activity (RSD = 3.13%), exhibiting excellent reusability.
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Nature Communications
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2026
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IF 18.1
Huang Zihang,Zhang Zijun,Geng Wan-Rong,Ma Wenbo,Li Yuyang,Zhou Zhanqi,Fu Yi,Zhang Ruian,Sun Yiran,Fang Xuchao,Jiang Xuanyu,Xiong Qin,Lv Xiayi,Du Guanshihan,Li Shangqing,Fang Yanjun,Yang Yang Michael,Huang Yuhui,Ma Xiu-Liang,Wu Yongjun,Liu Kaihui,Hong Zijian,Deng Tianqi,Tian He,Han Gaorong,Ren Zhaohui
Ferroelectric materials with a switchable polarization are appealing for optoelectronic applications because of their above-bandgap photovoltage with a potential to exceed the Shockley-Queisser limit efficiency within classic p-n junctions. However, the intrinsic photovoltaic current in ferroelectrics remains far below the junction ones by orders, hindering their practical applications. Here we report an extremely large photovoltaic current density of 130 mA cm −2 with a photovoltage of 1.31 V under 375 nm light illumination in single-domain lead titanate films. Its photoresponsivity surpasses all available ferroelectric materials by two orders of magnitude. Systematic investigations reveal that an interfacial Ta dopant layer during solution epitaxy drives a polarization converting of the film via the flexoelectric effect, where surface charged Pb vacancy layer was generated for polarization screening. These two layers produce a p-i-n structure throughout the film, accounting for the ultrahigh photovoltaic response. Furthermore, a self-powered X-ray detector made of such film was explored to achieve a sensitivity of 4.73 C Gy air −1 cm −3 , three orders of magnitude higher than that of commercial amorphous Se detectors. Our findings may pave the way for exploring novel detection and imaging devices based on ferroelectric materials.
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JOURNAL OF POWER SOURCES
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2026
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IF 8.4
Zhengguo Jiao,Yi E,Wanwei Fu,Xinyi Ran,Tao Mei,Fengshuai Zhu,Xianbao Wang
Lithium–sulfur (Li–S) batteries are promising next-generation energy storage systems due to their high theoretical capacity and low cost, but they suffer from the insulating nature of sulfur, significant volume change, and the polysulfide shuttle effect. To address these challenges, we designed and synthesized a CeO 2 -decorated N-doped reduced graphene oxide (N-rGO/CeO 2 ) composite as a sulfur host. The N-rGO framework ensures high electrical conductivity and offers abundant active sites for sulfur species, while the CeO 2 nanoparticles, with their Ce 4+ /Ce 3+ redox couple, effectively immobilize polysulfides and catalyze their conversion. This unique structure couples a highly conductive N-rGO network with uniformly dispersed nanoparticles, resulting in a synergistic system that integrates physical confinement, strong chemisorption, and efficient electrocatalysis. N-rGO/CeO 2 /S cathode delivers a high initial discharge capacity of 1330.9 mAh g −1 at 0.1C and maintains 730.0 mAh g −1 after 100 cycles at 0.2C. Remarkably, it exhibits outstanding long-term cyclability, retaining capacities of 432.4 and 327.0 mAh g −1 after 1000 cycles at 1 C and 3 C, respectively, corresponding to an ultralow capacity decay rate of only 0.024% per cycle at 1 C. This work highlights the effectiveness of the N-rGO/CeO 2 composite as a multifunctional host for high-performance Li–S batteries.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yuanyuan Wang,Xiaoyi Zhao,Xueai Li,Kexin Jin,Chunsheng Wang,Kesong Tian,Wanchun Guo,Yingdan Liu
A series of carbons with tunable microstructures are synthesized by controlling of micelles. • Dielectric loss is boosted by rational designed of the morphology, defects, and heteroatoms. • The three-dimensional conductive network in the entangled nanowires improves Ohmic loss. • Abundant defect and heteroatoms in carbon significantly enhance the polarization loss. • An EAB of 7.12 GHz is achieved in N-doped O-functionalized carbon nanowires. The rational design of microstructures, pores, defects, and heteroatoms in carbon that can fully exploit characteristics of structural, interfacial and dipole polarization is a significant approach to achieve enhancement of dielectric loss for broadband microwave absorption. However, it remains a dramatic challenge to get the well-designed carbon with optimal combination of these various factors due to their dependent relationships. Herein, to explore the synergistic pathways among above factors for enhancement of dielectric loss, a series of polymer-derived carbon with identifiable microstructure, defect density and heteroatom was successfully synthesized by controlling the micelle morphology and monomer elemental composition during polymerization. A greater number of unpaired electrons in N-doped O-functionalized carbon nanowires implies more effective vacancy defects for dipole polarization and doesn't hinder the formation of the electric conductive network, resulting in a high ability for dielectric loss attributed to a synergistic effect of Ohmic dissipation as well as dipole polarization and the contribution of the geometric microstructure. As a result, the defects-rich N-doped carbon nanowires exhibit a remarkable broadband response, with an effective absorption bandwidth (EAB, RL ≤ -10 dB) of up to 7.12 GHz (10.88 GHz–18 GHz, 2.62 mm) and a minimum reflection loss (RL min ) of −40.46 dB (2.12 mm). This work not only provides a facile method to synthesize carbon particles with controllable microstructure and dopant atom but also offers some constructive feedbacks for the design of carbon-based microwave absorbing materials (MAMs) to achieve broadband response. Download: Download high-res image (245KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Sain Bux Jamali,Tauqeer Haidar Qamar,Sibt ul Hassan,Abdullah Ali Alansi,Ijaz Ahmad,Shakeel Ahmad,Shengxiang Huang,Lianwen Deng
Growing health concerns over electromagnetic radiation necessitate the effective microwave-absorbing materials with lightweight and excellent performances. In this study, trimetallic FeCoNi nanoparticles embedded in N-doped porous carbon foams, as FeCoNi@NPCFs were successfully synthesized via polymer bubbling technique for microwave absorption. By adjusting the ratio of polyvinylpyrrolidone to metal nitrates, the electromagnetic wave absorption performance was effectively enhanced. Benefiting from the synergistic interaction between magnetic and dielectric loss components, the optimized composite exhibits outstanding microwave absorption performance, with reflection loss (RL) of −45.12 dB and effective absorption bandwidth (EAB) of 4.91 GHz. Furthermore, the practical microwave absorption performance was evaluated using computer simulation technology (CST). This work demonstrates a scalable one-pot fabrication strategy for advanced microwave absorbers, offering promising solution for electromagnetic interference shielding in modern electronic and communication systems.
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JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
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2026
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IF 2.6
Song Ruili,Miao Xianhua,Fan Jikai,Ni Cong
The primary limitations of the oxygen evolution reaction (OER) electrocatalysts stem from poor electrical conductivity and insufficient accessibility of active sites. So highly productive catalysts are vital to lower the overpotential and enhance the kinetics of the sluggish OER. In this work, we present an effective OER electrocatalyst (NiS/N-CNT@Ni) and composites of Ni nanoparticles encapsulated in NiS/N-CNT fabricated via a simple two-step thermal treatment method. Meanwhile, due to the synergistic effect between NiS and nitrogen-doped carbon nanotubes (CNTs) and Ni, the NiS/N-CNT@Ni composites show higher OER electrocatalytic activity and better durability than commercial RuO 2 catalysts. Compared to commercial RuO 2 , the NiS/N-CNT@Ni catalyst demonstrates a lower overpotential (313 mV at 10 mA cm −2 ) and better stability. This study confirms that the NiS/N-CNT@Ni material not only exhibits a low overpotential but also presents a scalable, cost-effective synthesis strategy for high-performance composites applicable to energy conversion and storage.
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Inorganic Chemistry Frontiers
·
2026
·
IF 6.2
siqing Wang,Yan Zhang,Pengda Xiang,Dawei Chen,Qiling Li,Zhiyan Guo,chen chen
Electrocatalytic urea synthesis from CO2 and NOx offers a sustainable route for chemical production and environmental remediation. While grain-boundary engineering has emerged as a promising strategy to accelerate the sluggish kinetics of C–N coupling, whether it can simultaneously regulate the reaction pathways of both carbon and nitrogencontaining molecules remains unclear. Hence, we employed single-active-site TiO2 as a model catalyst and constructed polycrystalline grain boundaries to boost both the activity and selectivity of urea synthesis. Atomic-scale structural inducers (Fe) served as nucleation nodes for grain-boundary formation and promote the generation of abundant oxygen vacancies, which captured and locally concentrated electrons to facilitate the adsorption, activation, and C−N coupling of key reaction intermediates. Operando electrochemical impedance spectroscopy demonstrated enhanced interfacial charge transfer and faster interfacial response frequencies. In situ infrared spectroscopy directly tracked the adsorption and activation of both reactants as well as the formation of the critical C–N bond. This work provides a general design principle for developing advanced electrocatalysts for efficient C–N coupling.
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ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2026
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IF 12.2
Kangrui Zhao,Yinan Dong,Xueyun Wen,Xuejie Shen,Yiru Hu,Dongli Li,Yudong Ren,Ziyi Wang,Ali R. Jalili,Dorna Esrafilzadeh,Jieyi Zeng,Hao Li,Keyu Chu,Dongbin Wang,Yongping Huang,Jingkun Jiang,Zehui Li
Long-term exposure to formaldehyde (HCHO) in indoor environment poses a serious threat to human health. Despite recent advances, conventional electrochemical HCHO sensors face significant challenges in sensitivity, selectivity, and stability, primarily due to competitive adsorption of interfering species and strong binding of reaction intermediates on the catalyst surface. To address these limitations, we developed an ammonia-assisted bimetallic synergistic templating method to construct a Pt–Co bimetallic and nitrogen-doped carbon nanotube (Pt2.32Co–N10/CNT) electrocatalyst. Compared to commercial Pt/C, the Pt2.32Co–N10/CNT exhibits a 2.73-fold higher catalytic activity, a sensitivity of 458.62 μA·mmol/(L·cm2) (4.12 times that of Pt/C), and anti-interference performance. The CNT provides a one-dimensional and high-surface-area structure that accelerates electron transfer and promotes uniform dispersion of active sites, including Pt/Co nanoparticles and Pt/Co single atoms. Importantly, the nitrogen-rich environment forms strong coordinate bonds with Pt and Co, finely-modulating their electronic configurations to suppress methanol interference via selective adsorption. Additionally, nitrogen doping effectively weakens the CO adsorption energy, mitigating the CO-induced catalyst poisoning. With integration with screen-printed electrodes, the portable Pt2.32Co–N10/CNT sensor achieves a high sensitivity of ca. 2.38 nA/ppb and retains over 96% of its initial response after 7 days, alongside a 10-fold improvement in anti-interference ability in the alcohol-rich environment. This advancement holds transformative potential for next-generation electrochemical sensors with broad applications in environmental health, medical diagnostics, and food safety.
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