SENSORS AND ACTUATORS B-CHEMICAL
·
2016
·
IF 4.758
Chong Sun,Ling Gao,Daoying Wang,Muhan Zhang,Yuan Liu,Zhiming Geng,Weimin Xu,Fang Liu,Huan Bian
Inosine monophosphate (IMP) is considered to be an important constituent in the formation and development of meat flavor. In this paper, a bi-enzyme biosensor system for determination of IMP was developed to evaluate the freshness and quality of stored muscles. More details of preparing for polypyrrole-Pluronic F127-gold nanoparticles (PPy-F127-Au NPs) and immobilizing bi-enzyme (peroxidase and 5′-nucleotidase) on PPy-F127-Au NPs modified glassy carbon electrode (GCE) were presented. The electrochemical behaviors of the bi-enzyme biosensor were analyzed, and the concentration of IMP was determined based on the bi-enzyme biosensor response. The results of linear sweep voltammetric (LSV) and square wave voltammetry (SWV) indicated that the catalytic reaction was occurred favorably on the surface of the bi-enzyme biosensor, with a wide detection range (0.05–15 g/L) and a low detection limit of 3.85 ng/mL. The good anti-interference ability, stability and repeatability of this biosensor were also proved. The analytical results by the biosensor system did correlate well with those obtained by liquid chromatography.
研究领域:
生物传感器技术
·
食品质量评估
·
电化学分析
·
生物医学工程
·
纳米材料应用
✓ 已验证
DOI
高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2023
·Vol. 87
·期 5
·1202-1213
·
IF 2.7
Liu Zhenzhong,Wu Yang,Wan Siwen,Wang Boyan,Ji Hongliang,Xiang Xiaofang
View large Download slide View large Download slide Close modal Compared with the common synthesis methods of metal-organic frameworks (MOFs), Co/Cu-based bi-MOFs composite catalyst Co X Cu (10− X ) -MOFs ( X = 2, 4, 6, and 8) was prepared by a facile synthesis method at room temperature. The bi-MOFs composite catalyst was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The removal ability of sulfamethoxazole (SMX) by different Co:Cu rate bi-MOFs composite catalysts, single Co-based MOFs (zeolitic imidazolate framework-67, ZIF-67), and Cu-based MOFs (Hong Kong University of Science and Technology-1, HKUST-1) were investigated and the effects of peracetic acid (PAA) concentration, catalyst dosage, the common interfering substances (Cl − , HCO 3 − , SO 4 2− , HA) in water, and SMX removal were investigated. Through the analysis of different free radical scavengers and the changes of surface elements before and after the reaction, the oxidation mechanism was further explored, and the stability of Co 4 Cu 6 -MOFs was explored through repeated recycling. The experimental results demonstrate that Co 4 Cu 6 -MOFs have a high catalytic activity for PAA. Co 4 Cu 6 -MOFs/PAA show the best removal effect of SMX under neutral conditions and the presence of Cl − and HCO 3 - can promote the removal of SMX. Co 4 Cu 6 -MOF composites were synthesized and used for SMX removal. Application of PAA activation catalyst to generate R–O• for SMX removal. The effects of different environmental factors on the removal of SMX were discussed.
研究领域:
环境科学
·
化学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Jing Yang,Wanting Li,Baoluo Zheng,Huiyu He,Xin Zhang,Pu Wang
Bismuth (Bi)-doped glasses and fibers are the most promising gain media to solve the capacity crisis in optical communication systems due to their broadband near-infrared luminescence covering O-U bands. To date, only Bi-doped fibers prepared by the modified chemical vapor deposition method have been well-developed, providing net gain performance. However, the crucial technological challenges have not been fully resolved, such as the high fabrication cost and the balance among unsaturated loss, doping concentration, and unit gain. In this work, we propose a modified sol–gel method for low temperature synthesis of highly homogeneous Bi-doped glasses. By using HF and HCl as the coordinated catalysis, a series of uniform Bi-doped glasses with low OH − content (∼4.5 ppm) was prepared at 1300 °C within 3.5 days. The Bi-doped glasses present broadband luminescence covering the O-U band, attributed to the superposition of multiple bismuth active centers (BACs), and provide relatively high fluorescence lifetimes (657–735 μs). On this basis, Bi-doped GeO 2 -SiO 2 fibers (BGSFs) were prepared via the rod-in-tube method. Utilizing a 40 m BGSF as the gain media, an amplifier was constructed using backward pumping. As the pump power of 808 nm laser diode reached 100 mW, positive gain was obtained in the range of 1200–1600 nm with a maximum on-off gain of 0.9 dB/m at 1395 nm. These results suggest that our modified sol–gel method holds promising potential for flexible fabrication of Bi-doped glasses and fibers.
研究领域:
光学材料
·
光通信技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Mingwu Luo,Xiongri Gan,Xinyue Zhao,Lingqi Huang,He Zhu,Xingbin Yan,Kaiyuan Shi
Aqueous Zn-ion batteries (ZIBs) are promising for large-scale energy storage due to their low cost and high safety. However, ZIBs suffer from Zn dendrite growth and side reactions over the charge-discharge processes. Herein, a facile and scalable strategy was developed based on electrophoretic deposition (EPD) of surfactant-stabilized multi-wall carbon nanotubes (MWCNT) to enhance the reversibility of Zn foil. The MWCNT coating provides high surface area and improved electronic conductivity, thus facilitating rapid charge transfer behavior over the Zn 2+ plating/stripping processes. The results indicated that cationic surfactants , cetyltrimethylammonium bromide (CTAB), are feasible to improve the stability of Zn anode as electrolyte additives in parallel to dispersion and charging of MWCNT. Single-crystalline cryptomelane-type α-MnO 2 nanowires were successfully synthesized by oxalate-reduction of potassium permanganate under ambient conditions. The ZIBs, prepared by α-MnO 2 nanowire cathode and MWCNT coated Zn anode, demonstrated surpassing rate capacity and long cycling stability. The interfacial analysis of electrodes, based on surface tension and contact angle measurements, shed some light on the design and development of multi-functional additives for advanced ZIBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Donghan Xu,Cuijuan Zhang,Yongdan Li
Derived from N-(ferrocenylmethyl)-N-(butylphthalimide)-N,N-dimethylammonium bis(trifluoromethane-sulfonyl)imide (FcPI-TFSI), ferrocene/naphthalimide (FcNI-TFSI) based ionic bipolar redox-active organic molecule is constructed via nucleophilic substitution between amines and halogenated hydrocarbons. Due to the elevated delocalized negative charge density in the radical anion, the FcNI-TFSI based nonaqueous redox flow batteries (NARFBs) exhibits substantially improved cycling stability; 764 and 233 cycles are successfully performed before 50% of the initial discharge capacity is lost at 0.01 M and 0.1 M, respectively, whereas 82 cycles for FcPI-TFSI at 0.01 M. Similar to capacity diving phenomenon in lithium-ion batteries, sudden accelerated capacity loss is observed in the high-concentration battery. The possible degradation mechanism is discussed, involving crossover issue and parasitic reactions.
研究领域:
化学
·
材料科学
·
电化学
·
能量存储
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
JiCheng Liu,ZhaoYang Yao,Shun Gao,Xue Zou
BiOI/Bi 2 WO 6 /MXene composite was successfully synthesized via a solvothermal method, confirmed by XPS/XRD. • Optimal composite degraded 89.3% ranitidine and mineralized 56.0% in 2 h. • EPR analysis indicated that superoxide radicals (•O₂ − ) dominate the degradation process. Ranitidine, a widely used acid-suppressing drug, can undergo nitrosation in aquatic environments to generate N -nitrosodimethylamine (NDMA), a potent carcinogen that poses a serious threat to aquatic ecosystems. To address its persistence against natural degradation, a ternary BiOI/Bi₂WO₆/MXene composite was fabricated via a one-pot solvothermal synthesis. Heterojunction construction effectively broadened its visible-light harvesting capacity. Characterizations by SEM, TEM, XRD, and UV–Vis DRS confirmed the successful formation of the heterojunction with markedly enhanced visible-light absorption. Combined with band structure analysis and radical trapping experiments, a Z -scheme charge transfer mechanism was proposed. Visible-light photocatalytic tests showed that the optimal sample exhibits a high degradation efficiency of 89.3% for RAN, with a 47% relative enhancement compared with pristine BiOI. Radical identification revealed that superoxide radicals (·O₂ − ) were the dominant reactive species. The synergistic effect between the electron-conductive MXene and the interfacial heterojunction accelerated photogenerated carrier separation and ·O₂ − production. Moreover, the composite retained 72.35% of its degradation efficiency after three cycles, demonstrating good stability. This work provides a novel material design strategy for visible-light-driven ranitidine degradation and offers a theoretical basis for mitigating NDMA formation risks.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Yu Tian,Yifei Guan,Fang Yu,Jichao Li,Jian Liu,Shengqing Xia
While transition metal doping is widely adopted to optimize Mg3(Bi, Sb)2-based thermoelectrics, conventional high-concentration doping inevitably induces detrimental grain boundary segregation, creating a convoluted mixed effect that obscures the intrinsic regulatory roles of the dopants. To systematically unveil these fundamental impacts, we establish a low-concentration doping paradigm. By synergizing a precisely controlled low-concentration strategy with an optimized synthesis process, 3d transition metals (Mn, Fe, Co, Cu) are homogeneously incorporated into the bulk lattice without boundary enrichment. Based on this homogeneous microstructural framework, distinct doping effects are systematically revealed. Fe and Co act as highly efficient electron donors, elevating the carrier concentration to >1.5 × 1020 cm–3. In contrast, Mn fundamentally optimizes the carrier scattering mechanism via effective mass reduction, leading to a remarkable 2.6-fold enhancement in carrier mobility. Consequently, the lightly Mn-doped sample achieves an optimal balance, yielding a peak power factor of ∼30.7 μW/(K2cm) and a maximum zT of 1.03. Furthermore, this homogeneously doped sample demonstrates optimized macroscopic durability, retaining consistent electrical properties after 3-month ambient air exposure and withstanding 50 rigorous thermal shock cycles. Ultimately, this work clarifies how homogeneously incorporated dopants regulate transport properties and stabilize the crystal matrix, establishing precise low-concentration as a robust framework for high-performance and durable thermoelectrics.
✓ 已验证
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Wenxuan Fan,Yan Zhou,Xinglin Zhou,Lei Huang,Xiaohui Ning
The intrinsic three-layer liquid architecture of liquid metal batteries (LMBs) enables a simple cell configuration, high safety, low projected cost, and exceptional theoretical cycle life, making them a promising technology for grid-scale energy storage. However, under high-temperature and multi-physics operating conditions, the corrosion of the stainless steel positive current collector (PCC) by molten cathode metal and halide electrolyte limits long-term durability. A systematic evaluation of commercially available stainless steels under realistic electrochemical, thermal, and chemical conditions is therefore essential. Herein, we investigate the corrosion behaviors of four representative stainless steels (SS201, SS304, SS316, SS430) used as PCCs in Li|LiCl-LiF-LiBr|Bi liquid metal batteries through a two-stage approach combining high-temperature hanging-coupon screening and service-condition cell testing. The results reveal pronounced synergistic corrosion during battery operation, where the combined effects of molten Bi , molten salt electrolyte, and electrochemical polarization substantially accelerate PCC degradation compared to static exposure. Among the investigated materials, SS316 exhibits the highest corrosion resistance, enabling stable cycling without observable capacity decay over 100 cycles. By integrating corrosion resistance, electrochemical performance, and techno-economic considerations, this work establishes an engineering-oriented PCC selection framework and identifies SS316 as the optimal candidate for 200 Ah-scale LMBs, allowing thinner, lighter, and more cost-effective collector architectures. The elucidated corrosion mechanisms under coupled electrochemical, thermal, and flow conditions provide critical insights for the rational design of durable and commercially viable liquid metal batteries.
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2026
·
IF 6
Min Li,Mingshu Zhao,Qiuwen Wang,Haoyu Liu,Zhou Su,Lidong Jiao,Qingyi Ren
Aqueous supercapacitors possess high power density, long cycle life, and rapid charging and discharging capabilities, while their practical application is significantly limited by low energy density. The development of high-performance electrode materials, especially anodes, is crucial for enhancing the energy density of supercapacitor devices. In this work, Bi–Bi2O3 nanoparticles were anchored onto carbon fibers (Bi–Bi2O3@C) via a combined solvothermal and calcination process, using natural cotton to derive the biomass-derived carbon framework. The resulting Bi–Bi2O3@C composite was utilized as an anode material for aqueous supercapacitors, demonstrating excellent electrochemical performance with a specific capacity of 253.5 mAh g–1 (912.6 F g–1) at 1 A g–1. Furthermore, a high-performance cathode material composed of NiS2 nanoparticle-decorated Ni(OH)2 nanosheets (NiS2@Ni(OH)2) was prepared by a simple hydrothermal method to achieve optimal matching with the anode. The obtained NiS2@Ni(OH)2 nanosheets cathode composite displays high specific capacitance of 1984 F g–1 at 1 A g–1 and remarkable rate capability, retaining 57% of its original capacity even at a high current density of 10 A g–1. The constructed NiS2@Ni(OH)2//Bi–Bi2O3@C aqueous asymmetric supercapacitor (ASC) delivers a high energy density of 64.4 Wh kg–1 at a power density of 798.2 W kg–1, and maintains a high energy density of 43.1 Wh kg–1 even at a power density of 15.9 kW kg–1.
✓ 已验证
DOI
高影响因子
Light-Science & Applications
·
2026
·Vol. 15
·期 1
·298
·
IF 24
Li Hongchao,Han Hexiang,Zhao Zhiyuan,Gong Hao,Song Xiaokun,Wang Zhongyang,Liu Gang,Fan Tongxiang,Zhou Xiao,Zhang Di
Cryogenic thermal control coatings represent a significant advancement over existing coatings limited to high reflectance in the 0.2–2.5 μm solar spectrum range, being able to reflect 96.6% of solar irradiance and to reach about 145 K equilibrium temperature, offering transformative potential for deep-space exploration, remote sensing, and other cryogenic applications. To achieve the cryogenic temperature further lower than 100 K in space, the peculiar optical property to reflect 99.9% of solar irradiance becomes necessary, which can be realized by an ultra-broadband reflectance from 0.2 to 8 μm. Here, we propose a bi-layer meta-composite comprising two distinct photonic random media, where rationally designed scatterer sizes selectively target short- and long-wavelength solar irradiance. By matching the scattering peak regimes, the meta-composite achieves a weighted solar reflectance of 97.3% over an ultrabroad 0.2–8 μm region. In the home-built deep-space simulator, the bi-layer meta-composite maintains an equilibrium temperature of 145 K, superior to existing coatings designed for room-temperature thermal control. Ground simulated irradiation tests further demonstrate exceptional optical stability under charged particles and atomic oxygen irradiations, with degradation of less than 1.5%. Moreover, the meta-composite retains optical properties comparable to existing coatings even after long-term ultraviolet irradiation. This work not only highlights the viability of photonic random meta-composites for cryogenic thermal control but also introduces a scattering regime matching strategy to broaden the spectral selectivity of disordered photonic systems.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2026
·
IF 3.1
He Shuangyi,Zhao Weiwei,Zhang Shuai,Li Tianbao,Luo Jujie
Cu − Bi bimetallic material with excellent electrochemical performance was successfully fabricated on iron foam via a one-stop microwave method. Under the optimal microwave power, heating time, and metal molar ratio, metallic Bi presents a needle-like morphology, interconnects to form a network, and is coated with Bi. This unique structure endows the Cu − Bi bimetal with the best electrochemical performance. Meanwhile, metallic Fe undergoes redox reactions in the alkaline electrolyte, which further enhances the capacitance value. The electrode prepared under the optimal synthesis conditions achieves an impressive areal capacitance value of 7.55 F cm −2 when tested at 1 A cm −2 , and it maintains 77.47% of its initially measured capacitance even after undergoing 15,000 long-term charge–discharge cycles, demonstrating excellent electrochemical stability. The assembled asymmetric supercapacitor device retains 84.1% of its original capacitance after 20,000 cycles. A power density value of 1185 μW cm −2 is realized when the energy density reaches 766.96 μWh cm −2 .
✓ 已验证
DOI
高影响因子
APPLIED GEOCHEMISTRY
·
2026
·
IF 3.5
Rong Peng,Rui Yang,Yuhang Liang,Haichuan Sun,Hui Liu
In anaerobic underground environments, the iron redox cycle is fundamentally driven by microbial activities, wherein the metabolic capacity of individual strains plays a pivotal role. This study investigated the regulatory mechanisms of three carbon sources — acetate, glucose, and lactate — on the iron redox cycle mediated by Comamonas sp. HJ-2 under neutral pH anaerobic conditions in Fe(III)–Fe(II) coexisting and Fe(III)-free systems. The results demonstrated that glucose enhanced Fe(II) bio-oxidation and Fe(III) bio-reduction by promoting energy metabolism. Glucose promoted sustained FMN accumulation, which is consistent with a potential contribution of the glycolysis-pentose phosphate pathway-riboflavin synthesis axis, which accumulated to a final concentration of approximately 0.40 μM. The accumulated FMN may function as an electron shuttle and thereby contribute to Fe(III) reduction. Mineralogical analyses further showed system-dependent effects of glucose. In ferrihydrite-containing systems, glucose inhibited the transformation of ferrihydrite toward more crystalline iron phases, whereas in ferrihydrite-free systems it shifted the product distribution toward a higher proportion of ferrihydrite and a lower proportion of lepidocrocite. Glucose also increased the content of surface-bound Fe(II) on minerals. In conclusion, glucose emerged as the most effective carbon source for optimizing the HJ-2-driven iron redox coupling process, likely due to its association with enhanced energy metabolism, FMN accumulation, and altered mineral phase transformation. This study elucidates the carbon source-dependent mechanisms governing microbial iron cycling in anaerobic environments and highlights the critical role of carbon source selection in enhancing iron biotransformation efficiency.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）