Journal of Energy Storage
·
2025
·
IF 9.8
Yuan Wang,Qinfeng Zheng,Yuepeng Pang,Yixiao Zhang,Tao Yuan,Shiyou Zheng
Prussian blue and its analogues (PBA) are promising cathode materials for economical large-scale sodium-ion batteries (SIBs). Manganese-based PBA, abbreviated as “PW”, offers advantages such as high voltage, high capacity, and good cost-effectiveness but faces challenges with manganese dissolution and structural distortion during cycling. In contrast, iron-based PBA, abbreviated as “PB”, maintains more stable structural integrity but exhibits relatively lower capacity. In this study, we introduce an ion-exchange technique to create core-shell structural cathode materials with PW as the main active ingredient and PB as the protective shell (PW@PB). This approach achieves more than doubled capacity retention after 500 cycles compared to naked PW. Furthermore, PW@PB demonstrates notable rate capability enhancements, retaining 80 % of its capacity at 0.1C when subjected to a high rate of 10C, proving its potential for use in fast-charging SIBs. The improved performance is primarily attributed to the reduced lattice and bound water in the structure of PW@PB. Additionally, the stable outer layer of PB inhibits the leaching of Mn and Fe, minimizing lattice distortion during the charge-discharge process.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Haiyan Wu,Liubing Ling,Ting Wang,Kun Dong,Yufeng Xu,Guo Yu,Yanwu Wang,Dunqiu Wang
Persistent Pb(II) ions in soils and aquatic systems diminish soil fertility, degrade water quality, and destabilise ecosystems. Hydroxyapatite nanowires (HAPNWs) are promising adsorbents owing to their chemical stability, biocompatibility, and strong affinity for heavy metals. This study evaluates HAPNWs hydrothermally synthesised between 0°C and 55°C, correlates temperature-induced structural variations with adsorption performance, and elucidates the stepwise Pb(II) uptake pathway. Nanowires synthesised at 35°C displayed the highest aspect ratio and achieved the greatest equilibrium adsorption capacity. The sorption kinetics followed a pseudo-second-order model, whereas the equilibrium data were best described by the Freundlich isotherm. Multi-technique characterisation revealed a two-stage uptake mechanism. Stage I, outer-sphere complexation, involves rapid binding of Pb 2+ to surface -PO 4 and -OH groups via electrostatic interactions without disturbing the apatite lattice. Stage II, near-surface ion exchange accompanied by incipient dissolution-reprecipitation, occurs under continued loading: surface Ca 2+ is partially replaced by Pb 2+ , and Pb 10 (PO 4 ) 6 (OH) 2 nuclei start to form on the HAP surface, progressively reducing active-site availability. Competitive sorption tests demonstrated a pronounced Pb 2+ preference. In equimolar quinary solutions (Pb, Cu, Cd, Zn, Ni), the selectivity sequence was Pb > Cu > Cd > Zn > Ni. The strongest inhibition appeared in the binary Pb-Cu system, where uptake decreased to approximately 40% of the single-ion value, indicating direct competition for identical surface sites. By elucidating the temperature-dependent relationship between structure, mechanism, and performance, this work provides both theoretical insights and a methodological framework for the rational design of high-performance adsorbents for heavy metal remediation in complex environmental systems.
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DOI
PubMed
高影响因子
Materials
·
2025
·Vol. 18
·期 12
·2871
·
IF 3.2
Yi Wang,Zilong Zhang,Ze Wang,Yujie Yan,Tong Feng,An Xie
Electrochromic devices have garnered significant interest owing to their promising applications in smart multifunctional electrochromic energy storage systems (EESDs) and their emerging next-generation electronic technologies. Tungsten oxide (WO3), possessing both electrochromic and pseudocapacitive characteristics, offers great potential for developing multifunctional devices with enhanced performance. However, achieving an efficient and straightforward synthesis of WO3electrochromic films, while simultaneously ensuring high coloration efficiency and energy storage capability, remains a significant challenge. In this work, a low-temperature hydrothermal approach is employed to directly grow hexagonal-phase WO3films on FTO substrates. This process utilizes sorbitol to promote nucleation and rubidium sulfate to regulate crystal growth, enabling a one-step in situ fabrication strategy. To complement the high-performance WO3cathode, a composite PB/SnO2film was designed as the anode, offering improved electrochromic properties and enhanced stability. The assembled EESD exhibited fast bleaching/coloration response and a high coloration efficiency of 101.2 cm2C−1. Furthermore, it exhibited a clear and reversible change in optical properties, shifting from a transparent state to a deep blue color, with a transmittance modulation reaching 81.47%.
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DOI
PubMed
高影响因子
CHINESE JOURNAL OF CHEMICAL PHYSICS
·
2016
·Vol. 29
·期 5
·607-616
·
IF 0.496
Gong Cheng-yun,Geng Zhi-gang,Dong An-le,Ye Xin-xin,Wang Guo-zhong,Zhang Yun-xia
A facile one-step co-precipitation method was demonstrated to fabricate amorphous sulfur-containing calcium phosphate (SCP) nanoparticles, in which the sulfur group was in-situ introduced into calcium phosphate. The resulting SCP exhibited a noticeable enhanced performance for Pb(II) removal in comparison with hydroxyapatite (HAP), being capable of easily reducing 20 ppm of Pb(II) to below the acceptable standard for drinking water within less than 10 min. Remarkably, the saturated removal capacities of Pb(II) on SCP were as high as 1720.57 mg/g calculated by the Langmuir isotherm model, exceeding largely that of the previously reported absorbents. Significantly, SCP displayed highly selective removal ability toward Pb(II) ions in the presence of the competing metal ions (Ni(II), Co(II), Zn(II), and Cd(II)). Further investigations indicated that such ultra-high removal efficiency and preferable affinity of Pb(II) ions on SCP may be reasonably ascribed to the formation of rod-like hydroxypyromorphite crystals on the surface of SCP via dissolution-precipitation and ion exchange reactions, accompanied by the presence of lead sulfide precipitates. High removal efficiency, fast removal kinetics and excellent selectivity toward Pb(II) made the obtained SCP material an ideal candidate for Pb(II) ions decontamination in practical application.
研究领域:
环境科学
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材料科学
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化学工程
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DOI
高影响因子
Crystals
·
2024
·Vol. 14
·期 1
·91
·
IF 2.4
Fan Zhang,Hua Hao,Minghe Cao,Zhonghua Yao,Shuai Fu,Hanxing Liu
Piezoelectric ceramics with excellent piezoelectric properties and a high Curie temperature are important for numerous electromechanical devices in a broad range of temperature environments. In this work, the relaxor ferroelectric Pb(Yb1/2Nb1/2)O3end member was selected to be introduced into a BiScO3-PbTiO3high-temperature piezoelectric ceramic to reduce the dielectric loss and improve the piezoelectric properties while slightly reducing the Curie temperature. The phase structure and dielectric, ferroelectric and piezoelectric properties of 0.025Pb(Yb1/2Nb1/2)O3-(0.975−x)BiScO3-xPbTiO3(0.60 ≤x≤ 0.63) ceramics were systematically analyzed, and the best electrical properties were observed in the morphotropic phase boundary regionx= 0.61 withd33= 370 pC/N,kp= 44%,Pr= 33.9 μC/cm2. Importantly, no significant depolarization was observed in thex= 0.61 ceramic from room temperature to 290 °C, demonstrating its good thermal stability and potential applications in a wide range of temperature environments.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
RARE METALS
·
2025
·Vol. 44
·期 5
·3339-3350
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IF 11
Wang Wen-Ying,Zhu Jun-Liang,Bo Lin,Zhou Wen-Ying,Liu Xing-Shuo,Li Chang-Cun,Zhang Zheng,Zhao De-Gang
The rock-salt cubic SnSe compound with multiple valleys and inherent low thermal conductivity is considered to be a promising thermoelectric compound. In this study, heterogeneous Pb atoms were strategically introduced into the lattice of cubic SnSe matrix, synergistically adjusting the thermoelectric transport properties of samples by optimizing hole carrier concentration ( n ) and suppressing thermal conductivity ( κ tot ). When the doping content reached 0.08 mol, the peak power factor (PF) at 300 K increased to 20.00 μW·cm –1 ·K –2 . The growing internal microstrain induced by the differences in atomic size strengthened the phonon scattering and effectively reduced the lattice thermal conductivity ( κ L ). With further decoupling of the electrical and thermal transport properties, a peak thermoelectric figure of merit ( ZT ) of 0.82 and an average ZT of 0.42 (300–750 K) were achieved in the samples doped with 0.10 mol Pb. These findings highlight the effectiveness of the selected dopants and demonstrate their synergy in improving the performance of thermoelectric materials. Graphical
研究领域:
材料科学
·
凝聚态物理
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能源材料
·
热电转换
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半导体物理
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiaofeng Mo,Mengye Wang,Han Song,Jie Li,Zhen Wu,Zhang Lin
Organic lead halide perovskite is a promising piezocatalyst for piezocatalytic H 2 production, meanwhile, large amount of unutilized lead resources in lead smelting residues have caused ecological security and resource waste problems. Here, we report an efficient Pb upcycling approach to recover lead halides from lead smelting residues to create lead halide perovskites (r-FAPbBr 3-x I x ), distinguished by the remarkable piezoelectric properties, for piezocatalytic H 2 evolution. Zinc impurities, concurrently from these residues, found their utilization in the partial substitution of Pb 2+ within the halide octahedra of r-FAPbBr 3-x I x . The intervention of zinc enhancing desorption of hydrogen from r-FAPbBr 3-x I x and culminating in a pronounced H 2 yield as 157.80 μmol·g −1 ·h −1 . Notably, the used r-FAPbBr 3-x I x that lost its functional prowess could be regenerated and exhibited a piezocatalytic capacity similar to its initial state, perpetuating a sustainable cycle of utility. This pioneering route to Pb upcycling furnishes an alternative avenue for the preparation and utilization of lead-based perovskites.
研究领域:
材料科学
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环境科学
·
能源科学
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产品关联
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 3
·512
·
IF 3.2
Zechi Ma,Zixuan Yuan,Zhonghua Yao,Jiangxue Chen,Hua Hao,Minghe Cao,Hanxing Liu
Piezoelectric materials (PZTs) enjoy extensive applications in the field of electromechanical sensors due to their sensitive response to external electric fields. The limited piezoelectric response for single-layer piezoceramic pellets drives the use of multilayered technology to increase the electric displacement of a single piezo device. As is well known, Ag is commonly used as a metal for electrodes in devices based on traditional PZTs, which always densify at a high temperature above 1100 °C, resulting in Ag migration. Here, a high-performance samarium-ion-doped Sm0.01Pb0.99(Zr0.54Ti0.46)O3ceramic was selected as parent materials to develop a new Ag-cofired ceramic matrix with a sintering temperature of 920 °C by glass flux. The ceramic composition with 2.0 wt% glass addition exhibits the excellent performance of piezoelectricd33~492 pC/N, planar electromechanical coupling coefficientkp~50.1%, mechanical quality factorQm~68.71, and Curie temperatureTc~356 °C, respectively. The cyclic stability ofd33was measured below 6.6% at 30 kV/cm, which indicates that the piezoceramic has good temperature stability and fatigue resistance. Therefore, this study provides a novel high-performance piezoelectric system to meet the cofired requirement for multilayered piezoelectric devices.
研究领域:
材料科学
·
电子工程
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Mingxin Jin,Chenglong Liu,Haohao Wan,Ziwen Yuan,Guiquan Wei,Min Shao,Yushan Wan
Heavy metal contamination in aquatic environments represents a critical global threat to water resource security. In this study, polyaniline/zinc oxide (PANI/ZnO) composites doped with hydrochloric acid and sulfuric acid were successfully synthesized to overcome the instability of composites resulting from the rapid dissolution of ZnO under low-pH conditions. Batch static adsorption experiments were performed, and both adsorption kinetic and isotherm models were systematically fitted to elucidate the adsorption behavior. The sulfuric acid-doped PANI/ZnO (PANI-SO 4 /ZnO) exhibited a considerably higher adsorption capacity of 396.5 mg g −1 compared with the hydrochloric acid-doped composite (PANI-Cl/ZnO, 297.1 mg g −1 ). This enhanced performance was attributed to the abundant adsorption sites in PANI-SO 4 /ZnO and the chemical precipitation mechanism involving Pb 2+ . The experimental results aligned well with the pseudo-second-order kinetic model and the Freundlich isotherm model (typical thermodynamic isotherm models), indicating that chemisorption and heterogeneous surface interactions governed the adsorption process. In cyclic and dynamic adsorption tests, PANI-Cl/ZnO displayed better reusability and mass-transfer stability. This variation originated from the irreversible formation of PbSO 4 precipitates in PANI-SO 4 /ZnO, which hindered regeneration, whereas Cl – in PANI-Cl/ZnO contributed to preserving the composite’s structural integrity. Although PANI-SO 4 /ZnO is suitable for short-term, rapid treatment of high-concentration Pb 2+ wastewater, its recyclability is restricted by the irreversibility of precipitation. In contrast, the high stability and effective mass transfer of PANI-Cl/ZnO render it an ideal material for continuous industrial wastewater treatment systems requiring long-term operation.
研究领域:
环境科学
·
材料化学
·
水处理
·
重金属吸附
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Yu Liu,Ruiqi Fu,Yue Sun,Xiaoxin Zhou,Shams Ali Baig,Xinhua Xu
In this study, EDTA-functionalized Fe 3 O 4 (Fe 3 O 4 @SiO 2 -EDTA) was prepared by silanization reaction between N-(trimethoxysilylpropyl) ethylenediamine triacetic acid (EDTA-silane) and hydroxyl groups for Pb(II) and Cu(II) removal from aqueous solutions. Fe 3 O 4 @SiO 2 -EDTA composites were characterized using SEM, TEM, EDX, FTIR, XPS, TGA and saturated magnetization techniques. Maximum Pb(II) adsorption capacity was found to be 114.94 mg g −1 with SiO 2 /EDTA molar ratio of 2.5:1. The adsorption rate was significantly fast and the equilibrium was reached within 10 min. The optimum pH was recorded to be 5.0. The maximum adsorption capacity of the studied heavy metal ions calculated by Langmuir model followed the order: Cu(II) (0.58 mmol g −1 ) > Pb(II) (0.55 mmol g −1 ) ≈ Ni(II) (0.55 mmol g −1 ) > Cd(II) (0.45 mmol g −1 ). Moreover, Pb(II) and Cu(II) adsorption capacities were not significantly affected by co-existing cations and NOM. These results suggested that this adsorbent can be considered as a promising adsorbent to remove Pb(II) and Cu(II) from wastewaters.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Arabian Journal of Chemistry
·
2020
·
IF 4.762
Dan Ma,Xuegang Zou,Ruobai Li,Ping Chen,Yalan Wang,Tiansheng Chen,Qianxin Zhang,Haijin Liu,Yuping Chen,Wenying Lv,Yiping Feng,Guoguang Liu
As one of the most toxic heavy metal ions, lead pollution has become an urgent problem. Here, a cubic crystal nanoparticle (Prussian blue analogue, PBA), referred to as potassium manganese ferrocyanide (KMFC) was synthesized and used as a highly-effective sorbent for removing Pb(II) from aqueous solution. KMFC is a mesoporous material that has excellent ion exchange properties, which was confirmed by a series of characterizations. This paper investigated the adsorptive attributes of KMFC for lead ions in aqueous solution. The influences of temperature, contact time and pH on adsorption were studied in batch experiments. The KMFC possessed a robust adsorption capacity for resident lead ions in aqueous solution, which attained 1075.27 mg g −1 at room temperature (25 °C), based on the Langmuir model, which was far higher than any previously reported values. The adsorption process was well fitted to a pseudo-second-order kinetic model, as well as Langmuir and Temkin isotherm models, and was endothermic and spontaneous on the basis of thermodynamic analysis. The adsorption of Pb(II) on the surface of KMFC started with electrostatic attraction, due to the electronegativity of KMFC. Further, ion exchange was the dominant mechanism in this adsorption process, which was confirmed by FTIR, XPS, and other supplementary experiments. The good chemisorption (K + exchange) properties of KMFC suggested that it likely has excellent prospects in applications for heavy metal ions adsorption. This study not only provided a new perspective for the design and development of heavy metal sorbents but provided a deep insight into the mechanism of adsorption of heavy metal ions by PBA.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Natural Product Communications
·
2022
·
IF 1.496
Yi-Hao Che,Zheng-Yong Yu,Fu-Neng Geng,Miao He,Zhi-Bin Yang,Yuan-Yuan Zheng,Cheng-Gui Zhang,Yu Zhao,Xiu-Mei Wu,Heng Liu
The traditional Chinese medicine (TCM) formula Ento-PB containing Periplaneta americana (Linnaeus) (Blattidae) and Taraxacum mongolicum Hand.-Mazz. (Compositae) has great potential for treating inflammation. This study explored the effects of Ento-PB on ulcerative colitis (UC). The UC model was induced with 2,4,6-trinitrobenzene sulfonic acid (TNBS) by enema. Male Sprague–Dawley rats (n = 32) were divided into four groups: (1) control group that received 2.5 mL/kg normal saline, (2) TNBS group that received 2.5 mL/kg normal saline, (3) Ento-PB low-dose group that received 100 mg/kg Ento-PB, and (4) Ento-PB high-dose group that received 200 mg/kg Ento-PB. Rats were administered drugs via enema for 14 days after modeling. The disease activity index (DAI), colon mucosa damage index (CMDI), histopathological score (HS), levels of interleukin-8 (IL-8), IL-10, IL-17, tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) in serum, contents of IL-2, myeloperoxidase (MPO), transforming growth factor-β1 (TGF-β1), and epidermal growth factor (EGF) in the colon, and abundance of Bifidobacterium, Lactobacillus, Enterococcus, Bacteroides, and Escherichia coli were assessed. Ento-PB administration showed a significant reduction in DAI, CMDI, and HS, contents of IL-2, IL-8, IL-17, TNF-α, CRP, and MPO, and a significant increase in the levels of IL-10, TGF-β1, and EGF. Compared with the TNBS-administered group, the abundance of Bifidobacterium, Lactobacillus, Enterococcus, and E. coli decreased, while an obvious increase in the proportion of Bacteroides was found in the Ento-PB-administered groups. Ento-PB alleviated inflammation in UC by regulating the equilibrium of Th1/Th17/Treg cytokines and recovering the imbalance between the gut microbiota. Applying Ento-PB in treating UC could be suggested.
研究领域:
传统中药
·
药理学
·
炎症性肠病
·
免疫学
·
胃肠病学
·
微生物学
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DOI
高影响因子
危险品化学品经营许可证（带存储）