JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Tao Wang,Xiqing Liu,Donglai Han,Changchang Ma,Yang Liu,Pengwei Huo,Yongsheng Yan
In this work, two Bi-based semiconductors composites was synthesized through the BiVO 4 quantum dots (BVO QDs) was grown on the Bi 12 TiO 20 (BTO) via an in-suit growth with the ultrasonic method, which was more stability and evenly dispersed. As expected, the BVO-BTO composites exhibited increased visible-light-driven photocatalytic performance for photo-degradation due to the advantages of BVO QDs. Moreover, the possible mechanism of BVO-BTO composites was studied by trapping experiment, photocurrent, UV–vis and so on. The results demonstrated that the BVO QDs can widen the light response range to visible region and hasten the charge transfer and separation. Thus, the photocatalytic activity was enhanced through the BVO QDs decorated on BTO, which provided a new idea for designing Bi-based materials.
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DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 25
·9681-9688
·
IF 4.569
Yucheng Dong,Shan Ji,Hui Wang,Vladimir Linkov,Rongfang Wang
Metal substrates are frequently used as current collectors and supports for electrochemically active materials, but their effect on the physical and electrochemical performance of electrocatalysts is rarely investigated. In this study, the electrodeposition method was used to coat four different metal meshes with three-dimensional nickel porous structures using hydrogen bubbles as a template. The significant influence of the metal substrates on the morphology of deposited nickel was demonstrated. 3D porous structures formed on nickel, iron, copper, and titanium meshes via the hydrogen bubble template method varied significantly. It was found that differences in the physical adsorption of hydrogen and electrochemical hydrogen evolution on metal substrates are the fundamental reasons behind the diverse morphology of the coatings. Lattice matching of the substrate and the active material also plays an important role during the electrodeposition process. Electrocatalytic performance of the newly prepared materials in water electrolysis was evaluated using the hydrogen and oxygen evolution reactions (HER and OER). The results demonstrate the high electrocatalytic activity of Ni/FeM in the OER and HER, and the good stability of Ni/TiM in HER.
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高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Qiang Xian,Xin Xiao,Jiaping Yu,Yi Gan,Li Chen,Xinmiao He,Enchao Wang,Hui Dan,Lin Zhu,Yi Ding,Tao Duan
The immobilization of iodine waste suffers from serious iodine loss during heat treatment. Herein, we reported on the high iodine retention immobilization of simulated radioiodine-contaminated Bi0–SiO2 sorbent in B–Bi–Zn oxide glass using Bi2O3 as a stabilizer under a N2 atmosphere. The effects of the Bi2O3 content and sintering atmosphere on the iodine immobilization behaviors (iodine retention ratio, phase composition, microstructure, and chemical stability) were investigated. It was found that the decomposition of BiI3 was prevented by adding Bi2O3 and sintering in a N2 atmosphere. The iodine retention ratio in the obtained glass waste form was significantly enhanced with increasing Bi2O3 content and sintering in the N2 atmosphere due to the synergistic effect. The achieved record-high iodine retention (92.22 ± 2.6%) was much higher than that of conventional heat treatment route (18.01 ± 3.5%). The results demonstrated that iodine was effectively immobilized through the formation of stable BixOyI (Bi5O7I and BiOI). Furthermore, the obtained iodine waste form exhibited excellent compactness and chemical stability. Owing to its high iodine retention ratio, this route can be employed to effectively immobilize radioactive iodine.
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 105
·期 5
·3438-3446
·
IF 4.186
Shuting Pang,Yiping Wang,Ying Yang,Jiyang Zhang,Querui Hu,Jingjing Shi,XiongJie Li
Bi(Zn 1/2 Ti 1/2 )O 3 −BiScO 3 −PbTiO 3 (BZT−BS−PT) high Curie temperature piezoelectric ceramics were synthesized by the conventional solid-state reaction method. Systematical investigations on the sintering, piezoelectric, and dielectric properties of the piezoceramics have been conducted. It was found that the sintering temperature could be remarkably depressed by varying the compositions in BZT−BS−PT systems. For composition of 11BZT−34BS−55PT ceramic, the sintering temperature is even lowered down to 750°C without any extra additions of sintering aids. Meanwhile, the ceramic sintered at this ultralow temperature presents dense microstructure with relative density up to 97%, as well as optimal properties of piezoelectric coefficient d 33 of 336 pC/N and Curie temperature of 415°C. The mechanism of low sintering temperature may be ascribed to the low melting point bismuth-based components in BZT−BS−PT solid solutions. Furthermore, 11BZT−34BS−55PT multilayer ceramics have been co-fired at 750°C with Ag internal electrodes. The dense structures, low cost, and optimal comprehensive properties of the co-fired multilayers illustrate obvious advantages of the ultralow sintering temperature in LTCC devices, implying promising applications of this Bi(Zn 1/2 Ti 1/2 )O 3 −BiScO 3 −PbTiO 3 high Curie temperature ternary system.
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高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Jianzhi Huang,Xinrong Guo,Xinjian Huang,Lishi Wang
Herein, mesoporous hollow kapok-tubes (denoted as MHKTs) is first used as carbon electrocatalyst for CO 2 electroreduction that can selectively convert CO 2 to formate without doping active elements, achieving the highest Faradaic Efficiency (FE) for formate at a potential range from −1.0 to −1.1 V vs. RHE (E = −1.0 V, FE = 48%; E = −1.1 V, FE = 50%). Moreover, MHKTs is also first used as new carbon support for loading metals in CO 2 electroreduction, metals (Sn, Bi, Pb and Cd) in-situ anchored on MHKTs are all prepared via in-situ simple one-pot synthetic strategy. The four electrocatalysts Sn@MHKTs (E = −0.9 V, FE = 94%; E = −1.0 V, FE = 95%; E = −1.1 V, FE = 90%), Bi@MHKTs (E = −0.9 V, FE = 90.5%; E = −1.0 V, FE = 93%; E = −1.1 V, FE = 92%), Pb@MHKTs (E = −1.0 V, FE = 85%; E = −1.1 V, FE = 80%) and Cd@MHKTs (E = −0.9 V, FE = 71%; E = −1.0 V, FE = 74%; E = −1.1 V, FE = 70%) all exhibit high selectivity for electrocatalytic CO 2 to formate at a wide potential range with low overpotential and high current density , respectively outperforming electrocatalysts synthesized under the same conditions that use traditional MWCNTs and rGO as carbon support (Sn@MWCNTs, Bi@MWCNTs, Pb@MWCNTs, Cd@MWCNTs; Sn@rGO, Bi@rGO, Pb@rGO, Cd@rGO). These outstanding performances of low cost metal@MHKTs electrocatalysts display great potential for large-scale using in CO 2 -to-formate process.
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高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 11
·1-16
·
IF 5.3
Feng Luping,Li Xinfeng,Wang Jianghong,Chen Enjun,Fan Yujie,Jin Leyao,Tang Peisong,Zhang Lixiang
A visible-light-powered photoelectrochemical (PEC) sensor was devised for chlorpyrifos (CPs) determination using metallic Bi-decorated BiVO 4 nanosheets (Bi@BiVO 4 NSs) with localized surface plasmon resonance (SPR) synthesized via a one-step hydrothermal method. It was observed that Bi@BiVO 4 -based PEC sensors exhibit significantly enhanced PEC responses over pristine BiVO 4 due to the collaborative effect of metallic Bi’s SPR phenomenon and BiVO 4 ’s visible-light-driven properties. Furthermore, the addition of CPs selectively suppresses the photocurrent signal of the sensor due to the in-situ formation of Bi-CPs complexes, which hindered electron transfer through specific chelation reactions between Bi sites and CPs. The designed PEC sensor achieved high-sensitivity detection of CPs, with a linear concentration range from 0.02 to 20 ppb and a detection limit of 0.01 ppb. These attributes may offer a blueprint for developing diverse PEC sensing systems to monitor various environmental pesticide contaminants like CPs by synergistic integration of visible-light-responsive BiVO 4 and SPR-active metallic Bi. Graphical
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DOI
PubMed
高影响因子
Advanced Science
·
2025
·Vol. 12
·期 27
·2502832
·
IF 14.1
Kai-Yu Yang,Xiaoyuan Li,Yuanxin Jiang,Liangliang Wang,Kai Guo,Lei Miao,Junliang Chen,Jiye Zhang,Lin Li,Yusong Du,Guang-Hui Rao,Jun Luo,Jing-Tai Zhao
Segmentation is a widely adopted strategy to enhance the efficiency of medium- and high-temperature thermoelectric devices by capitalizing on the distinct properties of materials across various temperature ranges. Establishing a highly compatible matching relationship is crucial for maximizing conversion efficiency. In this study, the concepts of materials’ compatibility factor and relative current density into the screening process are emphasized for universal adaptability. The effectiveness and practicality of the theoretical model for optimal segmented combinations are validated through COMSOL finite element simulations and experimental results. A segmented thermoelectric power generation device is constructed that integrates the environmentally friendly n-type Mg 3 (Sb,Bi) 2 with the optimal segmented pairing of Bi 0.5 Sb 1.5 Te 3 -GeTe. Notably, at a temperature difference of Δ T = 440 K, this device achieves a maximum conversion efficiency of 10.4% and a peak output power of 0.41 W. These findings provide a solid theoretical foundation for the development of efficient combinations of thermoelectric materials.
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PubMed
高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Xuetong Liu,Chi Zhang,Nuoyan Li,Runfeng Li,Songlin Lei,Wei Hong,Shuguang Deng,Jun Wang
Herein, a novel and flexible self-supporting gas diffusion electrode (GDE) was fabricated, which including an electrodeposited Bi nanocomposite as a catalyst layer and MIL-101 derived porous carbon in the gas diffusion layer (GDL). Compared with the conventional fabrication of GDE electrodes, the electrodeposition approach can avoid the tedious drop-casting processes of the catalyst layer (CL). The in situ growth mode by electrodeposition can also ensure the firmly interaction between CL and current collector, thus enhancing the stability of the electrode. Meanwhile, the porous carbon derived from MIL-101 which with a high specific area is conducive for the CO 2 enrichment on the electrode, thus facilitate the reaction with high current density. Owe to the special structure, the resultant catalyst showed excellent performance for electrocatalytic CO 2 reduction reaction (CO 2 RR) with enhanced formic acid generation. Notably, at -1.37 V ( vs. RHE), a large current density of 400 mA cm -2 and a high formate Faraday efficiency (FE formate ) of 96.5 % were achieved, and the yield of formic acid reached 46.5 mmol cm -2 h -1 , which is superior to most electrocatalytic catalysts for CO 2 RR. In addition, the FE formate value remained high (>90 %) over a wide voltage window of 800 mV, and the catalyst also maintained stable operation at industrial current density for 70 h. This work provides a new strategy for the design of GDEs with novel structure to achieve high activity and durability for different electrocatalysis.
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高影响因子
MATERIALS CHARACTERIZATION
·
2025
·
IF 5.5
Qi-Hua Yang,Han-Qi Wei,Shu-Juan Zhao,Gui-Hua Li,Xuan Liu,Le Fu,Zhi-Wei Luo,Jia-Yong Si,Ge-Mei Cai
In recent years, the proliferation of counterfeit products has led to increased concerns about anti-counterfeiting technology, with traditional single-mode fluorescence methods proving insufficient due to their susceptibility to replication. The new copper-based halide materials have shown great potential in the field of multi-mode anti-counterfeiting due to their unique structure, excellent luminescence performance, and high defect tolerance. In this work, near-infrared emission of Cs 3 Cu 2 I 5 was achieved for the first time through Bi doping. By exploiting the dual emission center characteristics of the resulting Cs 3 Cu 2 I 5 :Bi, we demonstrated its excitation wavelength-dependent emission. It was then mixed with cyclohexane to prepare an advanced fluorescent anti-counterfeiting coating for screen printing, enabling high-precision pattern printing onto various substrates. The resulting anti-counterfeiting patterns exhibit excellent weather resistance, remaining virtually unchanged after 60 days at room temperature. This study lays the foundation for expanding the emission range of Cs 3 Cu 2 I 5 and adjusting multi band emission, and confirms its potential application in the field of multi-mode anti-counterfeiting.
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高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2023
·Vol. 50
·期 1
·107-125
·
IF 3.3
Huo Quan,Zhang Xiaolin,Fu Yanfei,Zhao Jiayao,Fu Lei,Miao Jiarun,Sun Haihui,Gao Jing,Liu Suyan
In this work, CuCo@C and CuCoS@C derived from an in-situ synthesis bi-metallic MOF HKUST-1/ZIF-67 (CuCo-MOF) were successfully fabricated by calcination and hydrothermal sulfide strategies. Morphology characterization results indicated that ZIF-67 grew uniformly on the surface of HKUST-1 to form CuCo-MOF. And, benefiting from bi-metallic MOFs precursors, the formed derivatives inherited and possessed good textural properties and dispersing well metal sites, which facilitated diffusions of molecules and enhancements of catalytic performances. In addition, carbon matrix produced in the materials further accelerated electron transporting properties, boosting HER and OER activities. Accordingly, in electrolytic water evaluations, CuCo@C and CuCoS@C showed good HER and OER performance, achieving 97 mV and 180 mV of overpotential at 10 mA cm −2 in an alkaline medium, respectively. Additionally, the catalysts exhibit long-term stabilities. Thus, this study provides a rational way for designing and constructing of high-efficient catalysts for H 2 and O 2 generations from electrolytic water processes.
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高影响因子
Journal of Materials Chemistry A
·
2016
·Vol. 4
·期 34
·13133-13141
·
IF 8.262
Xinzhe Li,Yiyun Fang,Shiling Zhao,Juntian Wu,Feng Li,Min Tian,Xuefeng Long,Jun Jin,Jiantai Ma
The development of metal-free catalysts for efficient catalysis of both the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) is extremely desirable in energy technologies. Herein, nitrogen-doped mesoporous carbon nanosheet/carbon nanotube (CNT) hybrids have been synthesized by the pyrolysis of glucose, urea and CNTs. Impressively, in 0.1 M KOH, the resulting hybrids afford remarkable OER activities with a low onset potential (1.50 V vs. RHE) and an exceptional over-potential (only 320 mV at 10 mA cm−2). Moreover, the same hybrids show comparable catalytic performance but better durability compared to the benchmark Pt/C (20 wt%) catalyst for ORR. The achieved ultrahigh catalytic performance of the hybrids originates from their large specific surface area (594.1 m2 g−1), high content percentage of N doping (8.5 wt%), and mesoporous structure, which leads to fully exposed active sites, improved mass/electron transport capability, easy adsorption/release of oxygen gas bubbles, and high structural stability. This work also provides a novel concept for fabricating heteroatom doped porous carbonaceous materials with integrated and improved catalytic performance for advanced applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
He Zhao,Chu Xu,Caobin Zhou,Ling Zhang,Chunzhong Li
Existing triboelectric nanogenerators (TENGs) for wearable sweat sensors are plagued by low power density, which restricts their practical application. This study focuses on boosting TENGs output power via a fluorinated bi-layer electronic textile (e-textile) fabricated by electrospinning rotary collection, enabling self-powered dual functionality: real-time electrochemical sweat sensing and human motion detection. The key design includes a PCLU-HFDD negative triboelectric layer (molecularly incorporated with hexadecafluorodecanediol to enhance electron affinity) and a poly(lactic- co -glycolic acid) (PLGA) positive layer. Rotary collection creates vein-like nanostructures on PCLU-HFDD yarns (6.2 μm roughness, 114.8° water contact angle), increasing contact area. The PCLU-HFDD TENG achieves a high power density of 0.66 W m −2 , an open-circuit voltage (Voc) of 117.08 V, and excellent stability over 35,000 contact-separation cycles. Critically, integrated with both sweat-sensing and motion-detection capabilities, the e-textile enables 180-min continuous glucose monitoring (under sedentary conditions) and recognition of human motions. This work confirms that the power enhancement not only overcomes the bottleneck of TENGs for wearable sensors but also facilitates dual-modal health monitoring, advancing the development of practical wearable bioelectronics.
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高影响因子
危险品化学品经营许可证（带存储）