JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Huan Shi,Tuo Li,Yang Liu,Tong Yu,Zhenxiang Zhao,Linrui Hou,Changzhou Yuan
Sodium metal batteries (SMBs) have been widely investigated recently due to the low price of Na metal, satisfactory energy density and similar chemical properties to lithium. However, SMBs also face challenges like low Na utilization, dendrite growth, dead sodium accumulation, unstable solid electrolyte interphase and massive bubble generation. To improve their safety and cycling stability, herein, we fabricate a porous hybrid framework, i.e. , fine Bi nanoparticles anchored in porous N-doped carbon matrix (Bi@PNC), as a modified layer upon Cu collector toward stable SMBs. Upon electrochemical activation, the nanoscale Bi-derived Na–Bi alloy with high sodiophilicity reduces the nucleation overpotential of Na, inhibits the formation of Na dendrites, and decreases the loss of Na during cycling. Thanks to these striking merits, the half cells assembled with Na undergo 1600 cycles (3200 h) at 1 mA cm −2 , 1 mAh cm −2 with the average Coulombic efficiency of 99.95%. The optimized Bi@PNC based symmetric cells still maintain the overpotential of ∼9.2 mV under 1 mA cm −2 and depth of discharge of 16.7% after cycling for 2420 h. Furthermore, the assembled less-Na full SMBs exhibit superb electrochemical properties. Our strategy here provides meaningful avenue to construct stable less-Na metallic anodes for advanced SMBs.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·
IF 10.7
Xiao Liu,Jicong Wang,Fangyuan Zhu,Yanrui Li,Wenchao Tian,Weijia Wang,Ruiyun Guo,Laijun Liu,Jing Shi
Photocatalytic conversion of CO2 into renewable fuels is an exciting and challenging approach to mitigate carbon emissions and energy crisis. The efficiency is hindered by the insufficient carrier transport capacity and high electron-hole pair complexation of catalysts. The inherent spontaneous polarization in ferroelectric materials can affect the generation, transportation, and isolation of intermediates within catalytic reactions in modulating the pace and effectiveness of photocatalytic processes. Herein, ferroelectric bismuth sodium titanate (BNT) decorated by oxygen vacancies (OVs) via in-situ reduction is first explored to promote photocatalytic CO2 reduction reaction (CO2RR). The chemical states and coordination environment of the cations and OVs are elaborated by using the X-ray absorption fine structure to probe weakened Bi-O bonds and enhanced lattice distortion. Besides built-in electric fields originating from intrinsic spontaneous polarization, carrier dynamics and reactive sites are optimized with extended visible light absorption thanks to the special morphology and OVs. Remarkably, defected catalysts show 18 times higher CO reduction yield than pristine BNT, outperforming state-of-the-art bulk ferroelectrics for single photocatalytic CO2RR. Interestingly, the product selectivity can be tailored after a poling treatment. This work provides a systematic approach to designing efficient ferroelectric photocatalysts, and meanwhile expands the ferroelectric photocatalysts family for advancing CO2 conversion.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Guoguan Liu,Shan Zhong,Lishan Zhang,Hangyu Shi,Qian Zhang,Xuan Ru,Yifu Li
This work successfully synthesized Bi@Bi 2 WO 6 with oxygen vacancies (OVs) through chemical etching and systematically revealed the coupling mechanism between OVs and piezoelectric effects. In the piezo-photocatalytic degradation of 2,4-dichlorophenol (2,4-DCP), the 0.1al-BBW sample exhibited the best performance, with an apparent rate constant of 0.05468 min −1 . ERS and PFM characterizations revealed that abundant OVs were introduced by etching, leading to lattice modification and improved piezoelectric polarization. According to density functional theory (DFT) results, the piezoelectric field optimizes charge localization at OVs, strengthens band coupling, reduces carrier recombination, and facilitates the activation of H 2 O and O 2 . Furthermore, Mott-Schottky results and stress-induced simulations (0–8 %) confirmed that both piezoelectric polarization and OVs contribute synergistically to energy band restructuring. Pathway analysis showed that 1 O 2 and h + were the dominant reactive species driving the two main routes of 2,4-DCP decomposition. Overall, this work offers mechanistic insights into OVs coupling with piezoelectric and presents a viable strategy for designing advanced piezo-photocatalysts with multifunctional capabilities.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Li Song,Benzheng Zhou,Zhiyao Fu,Zhi Ye,Shaowei Ruan,Junjia He
Bi₂O₃ is a critical additive in ZnO varistor formulations and requires uniform distribution to optimize electrical performance. Surface coating technology enables the synthesis of ZnO@Bi₂O₃ core-shell particles, effectively mitigating the uneven distribution of Bi₂O₃ within the particles. Among the currently reported synthesis methods of ZnO@Bi₂O₃, there are significant variations in the selection of core material (ZnO source), and the coating effects obtained from different coating processes are highly inconsistent. Additionally, the characterization of coating structures remains scarce in the literature. This study proposes a novel synthesis route for ZnO@Bi₂O₃ particles, utilizing commercial nano-ZnO powder as the core material to ensure industrial quality standards for ZnO in production. Bismuth ions (Bi³⁺) are deposited via chemical precipitation to form the shell layer. Hydrothermal treatment strengthens the core-shell binding, facilitates phase transformation, and final calcination purifies the product to achieve the Bi₂O₃ phase. The effects of pH value and Bi³ ⁺/Zn²⁺ molar ratio were systematically investigated. Prepared ZnO@Bi₂O₃ core-shell structures were thoroughly characterized and analyzed using X-ray diffractometry (XRD), energy dispersive spectroscopy (EDS), and high-resolution transmission electron microscopy (HRTEM). The results indicate that the optimal coating performance is achieved when pH= 10.5 and the Bi³ ⁺/Zn²⁺ molar ratio is near 0.05, whereby the Bi₂O₃ phase forms uniform belt-like and spherical shells on the ZnO surface. This research integrates the common industry powder preparation techniques, including chemical precipitation, hydrothermal reaction, and calcination, to establish a foundational basis for the industrialization synthesis of ZnO@Bi₂O₃.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Fang Yuqi,Li Mingzhao,Wang Zi Jin,Liu Xinyu,Yao Shaowei
Metal Bi is considered as a potential anode material for sodium-ion batteries due to its high theoretical specific capacity and low reaction voltage. However, the volume change (244%) during discharge and charge process seriously affects the cycle stability performance. Under this background, the sheet-like structure bismuth based metal-organic framework (Bi-MOF) precursor is prepared by hydrothermal method, and Bi@C composite material is obtained after heat treatment. Due to the unique sheet-like structure and the addition of carbon, the Bi@C composite material can effectively alleviate the volume change during the discharge and charge process. According to the electrochemical performance test, Bi@C electrode material still has high and stable discharge specific capacity of 392.0 mAh g −1 after 1000 cycles at the current density of 0.5 A g −1 , and has excellent rate performance. This work provides an important reference for the development of Bi-based anode materials for sodium-ion battery.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2024
·
IF 3.8
Chengcheng Yang,Wen Deng,Fei Li,Mengting Gong,Hui Li,Xiaorong Mi,Sitong Ma
A pH/temperature bi-responsive gallic acid magnetic imprinted polymer (PTBG-MIP) was synthesized on a Fe 3 O 4 @SiO 2 @KH570 carrier using methacrylic acid (MAA), p-Vinylphenylboronic acid (p-VPBA), and N-isopropyl-acrylamide (NIPAAm) as complex functional monomers. The density functional theory (DFT) was employed to optimize the molar ratio of multi-functional monomers-template complex, which proved to be an effective tool for predicting complex configuration based on electrostatic potential (ESP) analysis and the lowest binding energy. DFT calculation and analysis determined the optimized molar ratio of 2:1:1:1 for GA-MAA-NIPAAm-p-VPBA, which showed good agreement with experimental results. The PTBG-MIP-4 obtained under the optimized conditions exhibited high pH- and temperature- dependence in rebinding the template, displaying a maximum adsorption capacity ( Q e ) of 62.26 mg g −1 and a highest selection factor (α) of 5.217. Additionally, the PTBG-MIP-4 exhibited exceptional physicochemical properties encompassing magnetization characteristics, morphology, surface sites distribution, and adsorption performance. The application efficiency of this imprinted composite in the extraction and purification of gallic acid from Galla chinensis was remarkably demonstrated.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
L. Yue,X.Z. Zheng,P.J. Xia,C. Wang,Y.F. Lei,M. Xu,W.B. Dai
Rare-earth (RE) and/or transition metal (TM) ions (co)doped phosphors have garnered much attention for promoting development in the fields of solid state lighting (SSL) and displays. It is a meaningful work to design high-quality phosphor via intelligent assembling from wide variety of compounds with RE/TM ions. Herein, the lanthanum borophosphate La 7 O 6 (BO 3 )(PO 4 ) 2 (LOBP) and Bi/Eu were selected as host and dopants for constructing the phosphor LOBP: Bi/Eu via solid phase synthetic method due to simple synthesis, chemical/thermal stability, rich cationic sites, appropriate bandgap, and controllable optical tuning from synergistic effect of cyan (Bi) and red (Eu) emissions, respectively. The structure and site occupations were analysed via XRD and Rietveld refinements , showing Bi 3+ ions were only resided in La 3+ sites within the monoclinic matrix (P2 1 /n) and appeared greater inclination towards the La sites with coordinate number ( CN ) = 8 as compared with CN = 7 due to the closer ion radius ratio. While Eu 3+ ions entered into the two distinct La sites with almost the same probability. The morphology and elemental mapping were obtained via SEM/EDS, exhibiting irregular particle shape with micron-level size, and the chemical composition met expectation. Through energy transfer (ET) from Bi to Eu under n -UV excitation, the adjustable photoluminescence (PL) from cyan traversing white and finally to red could be achieved. The concentration quenching for both singly- (Bi) and co-doped (Bi/Eu) phosphors were charged by the d-d interactions. Finally, the stable as-fabricated n -UV pumped w LED via coupling the composition-optimized white-emitting LOBP: 2%Bi, 7%Eu to a commercial 305 nm n -UV LED chip shows splendid performances.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Kun Liu,Junping Niu,Yijia Bai,Jianlei Qi,Limin Han,Ning Zhu,Ligang Yan
Ligand engineering has proven to be an effective strategy for tuning and controlling the microenvironment of coordinated metal centers, highlighting the critical bridge between the activity and structural features of catalysts during electrocatalytic CO 2 reduction reactions (eCO 2 RR). However, the limited availability of diverse organic ligands has hindered the development of novel high-performing electrocatalysts. In contrast, small organic molecules have been widely used in the fabrication of metal complexes due to their well-defined functionalities, low cost, and easy accessibility. Herein, functionalized small organic molecules were employed to prepare a new type of Bi-based heterogeneous molecular catalyst. These molecular catalysts enhance both electrical conductivity and catalytic activity for converting CO 2 to formate in the eCO 2 RR. The relationship between the structure and electrochemical performance of organic-functionalized Bi-based heterogeneous catalysts was thoroughly investigated. Comprehensive characterization and kinetic studies demonstrated that the functional groups of the organic molecules construct bond pathways for electron transfer and promote the transformation of the active phase from Bi to Bi 2 O 2 CO 3 . In-situ Raman spectroscopy reveal that the organic molecules remain intact during the structural reorganization, which is beneficial for the sustained generation of Bi 2 O 2 CO 3 active site during the eCO 2 RR process. Consequently, the organic functionalized Bi-based catalysts achieved a high formate Faradaic efficiency (FE HCOO - ) of 89.8 % and a high current density (j HCOO - ) of 40.0 mA cm −2 at a potential of −0.95 V vs. RHE in an H-type cell. This work establishes a novel strategy for creating active heterogeneous catalysts using small organic molecules, opening new avenues for the development of efficient electrocatalysts for CO 2 reduction.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Miaomiao He,Qiancun Wang,Zhijie Lin,Dan Sun,Guangfu Yin,Yi Deng,Weizhong Yang
Pathogenic infections pose a persistent threat to global public health, necessitating innovative antibacterial strategies with well-defined disinfection pathway. The antibacterial efficiency is confined in the contradiction between reactants adsorption and intermediates desorption. Here, the FeMoS 4 /MXene bio-heterojunction enzyme (FM BioHJzyme) is proposed and constructed. Under the inspiration of near-infrared light (NIR), the heterostructures between the FeMoS 4 and MXene facilitates efficient electron-hole separation with localized electron accumulation at FeMoS 4 sites. Crucially, the electronic push-pull effect induced by Mo polarizes oxygen-containing reactants (H 2 O 2 , H 2 O, O2) toward Fe active centers, enabling sequential electron capture for reactive oxygen species (ROS) generation. The results also reveal an enhancement in electron density at Fe sites compared to FeS/MXene controls, which is accompanied by a downshift in the Fe d-band center that reduces intermediates adsorption energy. The therapeutic efficacy is systematically evaluated using an S. aureus -infected full-thickness skin defect model. The bi-modulated FM BioHJzyme exhibits favorable antibacterial efficiency under NIR irradiation, while subsequent wound healing is facilitated through collagen deposition and angiogenesis in the following absence of NIR irradiation. This work offers a deep insight into the intricate mechanism-performance relationship of BioHJzyme platform in catalytic anti-bacterial application and proposes a sustainable approach of mechanism-guided materials design.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Min Wu,Shumin Liu,Haofu Yuan,Zichao Zhao,Lin Qiao,Xiangkun Ma
Iron-chromium flow batteries (ICFBs) are regarded as one of the most potential large-scale energy storage devices. Nevertheless, the slow dynamics of the Cr 3+ /Cr 2+ redox couples hinder the development of ICFBs. Here, a high-efficiency carbon-loaded bismuth (Bi/C) catalyst is fabricated and introduced on the electrode in situ to improve the dynamics with the assistance of polyvinylpyrrolidone (PVP). To derive the greatest value, we explore the current density anisotropy in ICFB and design a strategy of anisotropy engineering to meet the requirements of the anisotropy for catalysts. In the work, the gradient electrode (G-PBiC/TCF) with a high-efficiency Bi/C catalyst is successfully prepared. In addition, the ICFB assembled with the G-PBiC/TCF(M/m, the side of more catalysts facing the Membrane side) shows excellent battery performance. It can run over 500 cycles with EE of 81.36% at 120 mA cm −2 , which is the longest cycle life reported. Furthermore, the catalytic mechanism and the effect of the catalyst distribution on the performance are explained by the DFT calculation and multi-physical field simulation. This work provides a novel pathway to design that catalyst-supported gradient electrode with high performance and low cost.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Jinghao Zhu,Guiyang Yu,Hang Gao,Ruihong Sun,Ke Gong,Xiang Li,Debao Wang
Solar-driven upcycling of plastic waste to valuable chemicals provides an economic and low-energy technology to solve the accumulation of plastic waste and environmental pollution problems. However, simply relying on the capacity of single semiconductor system is still limited for high-efficient upcycling activity. Here, a low-cost plasmonic metal Bi-modified P-doped g-C 3 N 4 (Bi/PCN) is firstly reported to apply the conversion of waste plastics (including PE, PP, PVC, PEG, and PAM) under natural environment conditions without adding any cocatalysts or sacrificial agents. TAS and theoretical calculation reveal that the synergistic effect of Bi plasmonic excitation and doped P engineering not only improves light absorption ability, but also tunes interfacial Schottky barrier height (SBH) for the excellent charge separation and transport. The superposed amplification effect of Bi plasmonic excitation originates from hot electron injection, SPR scattering effect, and electromagnetic near-field enhancement. Optimized 1.0 %Bi/PCN composite achieves highly efficient upcycling of PE plastic to HCOOH product as liquid hydrogen storage medium with 1.88 % upcycling efficiency, which is the highest upcycling efficiency upon plasmonic photocatalysts as present. In situ EPR and IR spectra disclose plastics proceed multi-oxidative C C cleavage, where •O 2 and •OH radicals trigger plastic molecule and the intermediates of alkyl peroxide, alkyl radical, and alkoxy radical are successively formed. This work provides a preferable strategy for developing high-performance photocatalysts for upcycling of plastics waste through surface plasmon effect.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Jixia Deng,Changlin Zhai,Lei Zhan,Kuihua Zhang,Tao Yang,Qinfei Ke,Chen Huang,Anlin Yin
The long-term reliability of small-diameter vascular grafts (SDVGs) is still largely confined by acute thrombosis, intimal hyperplasia and delayed endothelialization. In this study, a fibrous SDVG containing both physical and biochemical cues was developed to promote rapid endothelialization. The success of our method depends on the integration of a bi-oriented luminal surface with the conjugation of salvianolic acid B (Sal B) via aminolysis and subsequent amidation reaction. Specifically, longitudinally aligned poly (lactide acid-co-ε-caprolactone) (PLCL) microfibers having nano-grooved surface texture provided bi-oriented topographical cues to guide the elongation and migration of endothelial cells (ECs), whilst the incorporation of Sal B served as a biochemical signal to inhibit thrombosis, enhance EC growth and increase von Willebrand factor (vWF) expression in ECs. When implanted into a rat abdominal aorta defect model, the graft was able to facilitate luminal EC coverage, smooth muscle cells infiltration and collagen deposition without causing stenosis or thrombosis. The combination of bi-oriented topography with surface functionalization may become a platform design to maintain patency and accelerate in situ tissue regeneration of SDVG.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）