ChemSusChem
·
2022
·Vol. 15
·期 24
·e202201739
·
IF 9.14
Kang Zhou,Nan Wang,Xuan Qiu,Haijiao Xie,Peng Wei,Xiaoli Dong,Yonggang Wang
Graphical No water, no problem : The H 2 O activity in aqueous electrolyte is restrained by adding glycerol and acetonitrile into the electrolyte to form hydrogen bonds between organic solvents and H 2 O molecules, which facilities the smooth Zn deposition and alleviates Zn corrosion. Therefore, the Zn//Zn symmetrical cell cycles for over 1300 h and the Zn//FD28 full cell cycles for 9000 cycles. The advantages of low cost and high safety of zinc (Zn) metal have attracted much attention on its application in batteries, but H 2 O-induced issues of hydrogen evolution reaction (HER), Zn corrosion, and Zn dendrites formation limit the application. Here, a strategy of adjusting H 2 O activity was provided by adding glycerol (GL) and acetonitrile (AN) into aqueous electrolyte to form hydrogen bonds between organic solvents and H 2 O, which alleviated the Zn corrosion. Furthermore, molecular dynamics (MD) simulation indicated that GL could exclude H 2 O from the Zn 2+ solvation shell, thus preventing undesired HER and Zn dendrites formation. Therefore, the corresponding Zn//Zn symmetrical cell showed a ultralong lifespan (1300 h). Then, a Zn-organic battery with 3,7-dimorpholino-phenothiazin-5-ium iodide (FD28) cathode was fabricated by using such electrolyte. Interestingly, the reduced H 2 O activity also ensured the stable operation of organic cathode, and thus the full cell showed superior cycle stability for over 9000 cycles (≈1100 h), which is superior to previous reports. Moreover, such electrolyte owns novel properties of nonflammability, great weatherability, and low freezing point, thus boosting the practicality of the battery.
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PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2022
·
IF 6.364
Yang Yang,Yifan Zhai,Huaicheng Xiang,Jie Li,Ying Tang,Liang Fang
Herein two cubic garnet ceramics Ca 3 TiBGe 3 O 12 (B = Mg, Zn) were prepared with optimal sintering temperatures of 1300 ℃ and 1200 ℃, respectively. Both ceramics exhibited promising microwave dielectric properties as well as rather low coefficient of thermal expansion ( α L ) of ε r = 11.95, Q×f = 83,000 GHz, τ f = −34.1 ppm/℃ and α L = 3.9 ppm/℃ for Ca 3 TiMgGe 3 O 12 , and ε r = 11.80, Q×f = 79,000 GHz, τ f = −42.9 ppm/℃ and α L = 4.0 ppm/℃ for Ca 3 TiZnGe 3 O 12 . Bond valence calculation reveals that Ca 2+ at the A-site is slightly compressed, Ge 4+ at C-site is rattling, and compressed Mg 2+ /Zn 2+ coexists with rattling Ti 4+ in the B-site. The large positive deviations (17.22% for Ca 3 TiMgGe 3 O 12 and 10.90% for Ca 3 TiZnGe 3 O 12 ) between the porosity corrected ε r (Corr) (12.32 and 12.41) and calculated ε r (C-M) (10.51 and 11.19) by the C-M equation were observed, which might be attributed to the combination of rattling effects in B-site and C-site. The relatively stronger rattling effect in Ca 3 TiMgGe 3 O 12 leads to a higher ε r and a τ f closer to zero than those of Ca 3 TiZnGe 3 O 12 . Besides, the Q×f values of Ca 3 TiBGe 3 O 12 (B = Mg, Zn) ceramics are mainly affected by relative density, packing fraction, and Raman mode (A 1 g ).
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JOURNAL OF SOLID STATE CHEMISTRY
·
2025
·
IF 3.5
Zhenduo Fan,Haohang Xu,Jinggeng Zhao,Yaohui Zhang,Xianjie Wang,Yu Sui,Zhe Lv,Jian Liu,Sida Jiang,Zhiguo Liu
As the first intrinsic magnetic topological insulator , MnBi 2 Te 4 has provided a material platform for the realization of various novel physical phenomena arising from the interaction between magnetism and band topology. Here, transition element Zn - doped MnBi 2 Te 4 crystals of millimeter size, synthesized by using self-flux method, are reported. With increasing Zn content, the hexagonal lattice shrinks, and the Raman frequencies show a red shift. All samples undergo a transition from A - type antiferromagnetic (A - AFM) to canted antiferromagnetic (CAFM) to ferromagnetic (FM) under magnetic field . The antiferromagnetic ordering temperature slightly increases from 24.2 K for MnBi 2 Te 4 to 25.2 K for Mn 0.75 Zn 0.25 Bi 2 Te 4 . The transition field from AFM to CAFM decreases from 3.4 T for x = 0–3.07 T for x = 0.25. Isothermal magnetization data suggest that the single - ion anisotropy of Mn 2+ decrease and the interlayer magnetic interaction increase slightly due to the diluted magnetic ions and unit cell shrinkage. Samples Mn 0.9 Zn 0.1 Bi 2 Te 4 and Mn 0.8 Zn 0.2 Bi 2 Te 4 show metallic conduction with a cusplike anomaly at around T N ≈ 24 K, corresponding to a long - range antiferromagnetic (AFM) transition. The increase of T N and decrease of transition field ( H c S F ) upon Zn doping, make it possible to manipulate magnetic and electrical properties in topological insulators by non - magnetic element substitution, which is of great significance for further application in quantum information storage and spintronics .
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高影响因子
CHEMICAL PAPERS
·
2022
·Vol. 76
·期 5
·2875-2882
·
IF 2.146
He Xiao-Ling,Huang Fu-Hui,Zhang Chun-Ming,Dong Zhen,Wang Bin-Quan
The larynx is an important organ of human speech, and patients with laryngeal cancer may face great pain of losing their functions. For the prevention and therapy of laryngeal carcinoma, two new Zn(II)/Cd(II) coordination polymers, namely [Zn 3 (L) 2 (4,4′-bipy)] n ·2n(DMF) ( 1 ) and [Cd 3 (L) 2 (bpp 2 ) n ·2n(H 2 O)·2n(DMF) ( 2 ) (H 3 L = 4,4′,4′′-ticarboxytriphenylamine, 4,4′-bipy = 4,4′-bipyridine, bpp = 1,3-bis(4-pyridyl)propane, DMF = N,N-dimethylformamide), were prepared. The treatment and protection activity of the new compounds against the laryngeal carcinoma was evaluated in this research, and the corresponding mechanism was explored at the same time. Firstly, CCK-8 assay was conducted to measure the inhibitory activity of compounds on the viability of laryngeal carcinoma cells. Additionally, the expression of miR-223-3P in MSC exosomes was also measured by real time RT-PCR assay.
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高影响因子
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
·
2022
·Vol. 648
·期 11
·e202200070
·
IF 1.414
Yusi Yao,Wenhui Li,Qiuqin Han,Guanglei Lv,Chunxia Li,Anyang Sun
Amyloid-β (Aβ) fibrils play a pivotal role in driving neuroinflammation and the progression of tau pathology in Alzheimer's disease (AD). In addition, Aβ oligomers are presumed to be closely associated with pathogenesis of AD. Currently, although a few Aβ antibodies are available, fluorescent probes still play an important role in detecting Aβ pathology. Herein, we designed and synthesized a pyridyl zinc chelate KZ and tested its potential specificity to Aβ species. The probe KZ showed a good binding to fibrillar Aβ aggregates and an excellent anti-interference feature in vitro. Importantly, KZ could display a subset of Aβ deposits recognized by OC antibody in brain sections of AD mouse models. Thus, this probe KZ could be used as a sensitive tracer for detecting Aβ fibrils or/and fibrillar oligomers.
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高影响因子
Acta Biomaterialia
·
2022
·
IF 10.633
Xian Tong,Li Zhu,Yihao Wu,Yiting Song,Kun Wang,Shengbin Huang,Yuncang Li,Jianfeng Ma,Cuie Wen,Jixing Lin
Zinc (Zn)-based metals and alloys are emerging as promising biodegradable implant materials due to their inherent biodegradability and good biocompatibility. However, this class of materials exhibits low mechanical strength and a slow degradation rate, which hinders their clinical application. Here we report the development of a new biodegradable Fe/Zn–3Cu composite fabricated by infiltration casting of a Zn–3Cu alloy into an Fe foam followed by hot-rolling. Our results indicate that the hot-rolled (HR) Fe/Zn–3Cu composite exhibited an α-Zn matrix phase, a secondary CuZn 5 phase, and an α-Fe phase. The HR Fe/Zn–3Cu composite exhibited an ultimate tensile strength of 269 MPa, a tensile yield strength of 210 MPa, and an elongation of 27%. The HR Fe/Zn–3Cu composite showed a degradation rate of 228 µm/year after immersion in Hanks’ solution for 30 d The diluted extract of the HR Fe/Zn–3Cu composite exhibited a higher cell viability than that of the HR Zn–3Cu alloy in relation to MC3T3-E1 and MG-63 cells. Furthermore, the HR Fe/Zn–3Cu composite showed significantly better antibacterial ability than that of the HR Zn–3Cu alloy in relation to S. aureus . Overall, the HR Fe/Zn–3Cu composite can be anticipated to be a promising biodegradable implant material for bone-fixation applications. Statement of significance This work reports a new biodegradable Fe/Zn–3Cu composite fabricated by infiltration casting and followed by hot-rolling for biodegradable bone-fixation application. Our findings demonstrated that the hot-rolled (HR) Fe/Zn–3Cu composite exhibited an ultimate tensile strength of 269.1 MPa, a tensile yield strength of 210.3 MPa, and an elongation of 26.7%. HR Fe/Zn–3Cu composite showed a degradation rate of 227.6 µm/a, higher than HR Zn–3Cu alloy after immersion in Hanks’ solution for 30 d The diluted extracts of the HR Fe/Zn–3Cu composite exhibited a higher cell viability than HR Zn–3Cu alloy toward MC3T3-E1 cells. Furthermore, the HR Fe/Zn–3Cu composite showed significantly better antibacterial ability than the HR Zn–3Cu alloy toward S. aureus .
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高影响因子
Batteries-Basel
·
2023
·Vol. 9
·期 6
·328
·
IF 4
Junzhang Wang,Zhou Xu,Tengteng Qin,Jintian Wang,Rui Tian,Xingzhong Guo,Zongrong Wang,Zhongkuan Luo,Hui Yang
Rechargeable aqueous Zn-metal batteries have attracted widespread attention owing to their safety and low cost beyond Li-metal batteries. However, due to the lack of the solid electrolyte interphase, problems such as dendrites, side reactions and hydrogen generation severely restrict their commercial applications. Herein, a quasi-liquid interphase (QLI) with a “solid–liquid” property is constructed to stabilize the Zn-metal anode. The synergistic effect of solid and liquid behavior ensures the stable existence of QLI and simultaneously enables the interphase dynamic and self-adaptive to the anode evolution. Electrolyte erosion, Zn2+diffusion and side reactions are inhibited during long-term cycling after introducing QLI, significantly improving the cycling stability and capacity retention of the symmetric and full cells modified with QLI (Zn@QLI), respectively. Constructing an interphase with a quasi-liquid state represents a promising strategy to stabilize the metal anodes in aqueous electrolytes and even extend to organic electrolytes.
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高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Minghui Qiu,Dong Wang,Benjamin Tawiah,Hao Jia,Bin Fei,Shaohai Fu
Despite the great progress on the development of zinc ion batteries (ZIBs) in recent years, the issue of zinc corrosion in aqueous media and the associated dendrite growth of the electrode remains a major challenge for achieving high-performance anode materials with long-term stability. Herein, we report a facile, yet, effective interfacial optimization of zinc (Zn) anode using a nanofluidic channel (NC) layer made up of Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) decorated graphene sheets (GSs) produced by electrochemical exfoliation. The NCs effectively modulated the Zn ion distribution density, inhibited dendrite growth, and restrained other side reactions due to its tunable channel size and the surface functional groups. Moreover, the extra conductive polymer (PEDOT:PSS) on the NC layer curbed the polarization problem by enhancing the electric field on the Zn anode. As a result, PEDOT:PSS/GS@Zn anode demonstrated prolonged cycling stability for 8000 cycles with substantial improvements in specific discharge capacity due to the enhanced electron transit efficiency. In summary, our work proposes a scalable technological approach to fabricate dendrite-free Zn anodes and provides a universal inspiration to restrain dendrite formation during the ion electroplating processes.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Ping Shen,Yuanyuan Hu,Shanguo Ji,Hao Luo,Cuiping Zhai,Kai Yang
Hydrogel electrolytes are an attractive class of conductive materials for flexible energy storage devices given their reassuring flexibility and stable electrochemical performance . However, it still remains a challenge to assemble the smart battery with mechanical stability and self-healing property when suffering from inevitable physical damages. Here, a novel Zn 2+ -based polyacrylamide/halloysite nanotubes (PAAm/HNTs) nanocomposite hydrogel electrolyte is designed and prepared through rigid HNTs doped into the chemical cross-linked PAAm network. The PAAm/HNTs hydrogel with tensile performance, self-healing property and extended Zn 2+ transport channels was used as hydrogel electrolyte in Zn/MnO 2 batteries which possess an initial capacity of 347 mA h g 1 at a current density of 0.2 A g –1 with good cycle stability. This work offers an effective design method to improve strength , self-healing and fatigue resistance of nanocomposite hydrogel electrolytes which would provide alterative view for the construct of hydrogel electrolytes with desirable properties.
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高影响因子
ELECTROPHORESIS
·
2016
·
IF 2.482
Pingxiu Tang,Tao Bao,Zilin Chen
Metal-organic frameworks (MOFs) are attractive stationary phases in the field of separation sciences for their unique properties such as large specific surface areas, high porosity, and diverse structures. However, there are few MOFs, which have ultrahigh porosities and gas uptake capacities. In this work, MOF-180 with exceptional porosity, a cage size of 15 × 23 Å, was grown on inner wall of capillary as a novel stationary phase for open-tubular CEC. It has been demonstrated that the MOF-180-modified capillary column exhibited good performance for separation of acidic, basic, and neutral analytes. As compared with MOF-199-modified column, MOF-180-modified column exhibited specific recognition and size selectivity to the tested compounds. The characteristics observed by SEM and FTIR indicated that MOF-180 was successfully grafted on the inner wall of the capillary. The precisions (RSDs) of retention time, peak area, and W 1/2 for methylbenzene, ethylbenzene, n-propylbenzene, chlorobenzene, o-dichlorobenzene, and 1,2,4-trichlorobenzene were 0.50–0.54%, 3.31–4.13%, 0.35–1.61%, 1.73–4.22%, 2.67–4.37%, and 1.60–3.38%, respectively. Besides, the run-to-run, day-to-day, and column-to-column RSDs of EOF were 0.6%, 4.19%, and 4.31%, respectively.
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高影响因子
Catalysts
·
2022
·Vol. 12
·期 7
·719
·
IF 4.501
Hong-Juan Qin,Yu-Hang Zhang,Zhen Wang,Gui-Hua Yang
Photocatalysis provides a prospective approach for achieving high-value products under mild conditions. To realize this, constructing a selective, low-cost and environmentally friendly photocatalyst is the most critical factor. In this study, BiOBr/Zn@SnO2is fabricated by a one-pot hydrothermal synthesis method and BiOBr: SnO2ratio is 3:1; this material is applied as photocatalyst in fructose selective conversion to lactic acid. The bandgap structure can be regulated via two-step modification, which includes Zn doping SnO2and Zn@SnO2coupling BiOBr. The photocatalyst shows excellent conversion efficiency in fructose and high selectivity in lactic acid generation under alkaline conditions. The conversion rate is almost 100%, and the lactic acid yield is 79.6% under optimal reaction conditions. The catalyst is highly sustainable in reusability; the lactic acid yield can reach 67.4% after five runs. The possible reaction mechanism is also proposed to disclose the photocatalysis processes.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2022
·
IF 3.656
Tingting Fan,Zhijian Li,Gang Liu,Congbin Fan,Shouzhi Pu
A new photochromic metal-organic framework [ Zn(BCM) 2 (bpfb)] where H 2 BCM = 1,2-bis(5-carboxylic acid-2-methylthien-3-yl)hexafluorocyclopentene, bpfb = N, N -bis-(4-pyridylformamide)-1,4-benzenediamine, was synthesized and characterized by Single Crystal X-ray Diffraction, Powder X-ray Diffraction, Elemental Analysis , Fourier Transform Infrared Spectroscopy (FT-IR) and Thermogravimetric Analysis (TGA). [Zn(BCM) 2 (bpfb)] crystallizes in a monoclinic P2 1 /n space group. The Single crystal X-ray structure determination revealed a three dimensional (3D) coordination framework of dinuclear zinc clusters [Zn 2 (COO) 4 N 2 ] interconnected both BCM 2− and bpfb. And [Zn(BCM) 2 (bpfb)] exhibited reversible photochromism behavior derived from diarylethene BCM 2− ligand. Besides, [Zn(BCM) 2 (bpfb)] can be further used to photo-switch the luminescence emission, which can achieve precisely reading out and concealing information in reversible transformation.
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高影响因子
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