JOURNAL OF ALLOYS AND COMPOUNDS
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2023
·
IF 6.2
Jian Ma,Minghao Huang,Lei Dong,Yueda Wang,Yueyue Wu,Zhendong Zhu,Le Zhang,Rulong Zhou,Xuyong Feng,Qian Hou,Hongfa Xiang
Quasi-solid-state batteries (QSSBs) are an intermediate development step from liquid batteries toward all-solid-state batteries, and the diminish of liquid content in QSSBs is of practical significance. However, in sodium batteries with a metallic Na anode, large interfacial resistance is a bottleneck restricting rate capability and further decrease of liquid content in QSSBs. In this work, we demonstrate the construction of a robust anode–electrolyte interface with facilitated charge transfer process and enhanced chemical stability for in-situ polymerized QSSBs, realized by a 3D Na/Na-Sn composite anode. The Na-Sn alloys uniformly distributed in Na matrix not only possess lower Na + diffusion barrier intrinsically, but also contribute to a stereo surface with increased electrochemical surface area, which is beneficial to accommodating volume variations during sodiation/desodiation. Importantly, the in-situ polymerization process is highly compatible with the 3D composite anode without sacrificing of interfacial geometric contact. As a result, in QSSBs with a Na 3 V 2 (PO 4 ) 3 cathode, by replacing metallic Na anode with the Na/Na-Sn composite anode, liquid content in quasi-solid-state electrolyte can be appropriately reduced (e.g., from 70% to 50%) while maintaining similar level of electrochemical performance, i.e. high discharge specific capacity (109.5 mAh g −1 at 0.5 C ) and good cyclic stability (96.5% capacity retention after 650 cycles), showing high practical significance.
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DOI
高影响因子
ANALYTICAL CHEMISTRY
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2019
·
IF 6.35
Lijie Wu,Qi Ding,Xin Wang,Ping Li,Nannan Fan,Yongqing Zhou,Lili Tong,Wen Zhang,Wei Zhang,Bo Tang
Drug-induced liver injury (DILI) can cause liver failure and even death in severe cases, gravely threatening human health. The treatment of DILI remains a clinical challenge, mainly due to the lack of efficient and accurate diagnosis. Therefore, developing an accurate diagnosis approach is imperative to boost the timely treatment for DILI. As the primary organ of iron storage, liver’s functions are tightly linked to iron homeostasis. Thus, monitoring iron homeostasis is promising for the diagnosis and treatment of DILI. Hence, we reported a new near-infrared fluorescent probe (LCy7) that enables real-time and in vivo visualizing of Fe2+ in drug-induced liver injury. In this design, Fe2+ would bind to the N4O ligand in LCy7 and conduce to the C–O bond broken in the presence of O2, which restore the masked QCy7 emitting luminous near-infrared fluorescence. Utilizing LCy7, the increase in Fe2+ was distinctly witnessed in hepatocytes under endoplasmic reticulum stress by acetaminophen (APAP) stimulation. In vivo near-infrared fluorescence imaging revealed the conspicuous rise in Fe2+ in the liver of mice during APAP-induced liver injury. We further unprecedentedly disclosed that endoplasmic reticulum stress was accompanied by the overload of Fe2+ in injured liver of these mice. Collectively, this work will facilitate a greater understanding of the pathogenesis of DILI, and also provide a powerful new tool for DILI diagnosis and treatment.
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高影响因子
APPLIED CATALYSIS A-GENERAL
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2020
·
IF 5.006
Phyu Thin Wai,Pingping Jiang,Yirui Shen,Pingbo Zhang,Qian Gu
The efficient catalysts were designed to allow the entry and release of reactants and products into the mesoporous SBA-15 in which the active sites, peroxophosphotungstate, were entrapped by silylation with three different silylating agents (C 3 , C 5 , and C 8 arm). The as-prepared catalysts were characterized by elemental analysis, ICP analysis, TGA, XRD, N 2 adsorption/desorption, SEM, TEM, and FT-IR spectra. Their catalytic performances were tested for the epoxidation of soybean oil using different parameters such as temperature, H 2 O 2 to unsaturation molar ratio, catalyst loading and stirring speed. The resulting epoxidized soybean oil was analyzed qualitatively and quantitatively by FT-IR and 1 HNMR. The results confirmed that the catalyst silylated with C 8 arm is promising for the synthesis of epoxides of long-chain carbon and reusable at least three times without obvious decrease in activity. Moreover, use of H 2 O 2 oxidant and free of solvent in the epoxidation reaction are the main advantages of these catalysts.
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高影响因子
ChemSusChem
·
2022
·Vol. 15
·期 8
·e202200075
·
IF 9.14
Jun Zheng,Chenyang Zhan,Kai Zhang,Wenwu Fu,Qiaojun Nie,Ming Zhang,Zhongrong Shen
Graphical Cellmates : A zinc-ion battery cell is constructed with V 2 O 3 @C as the cathode and a “water-in-salt” electrolyte. Electrochemically induced oxidation of V 2 O 3 @C into amorphous V 2 O 5 with in situ Zn 2+ and H 2 O co-insertion leads to excellent cycling and rate performances. Systematic improvement of this architecture indicates significant promise for practical application. Aqueous Zn-ion batteries (ZIBs), with the advantages of low cost, high safety, and high capacity, have great potential for application in grid energy storage and wearable flexible devices. However, their commercial application is still restricted by their inferior long-term cycling stability, Zn dendrite formation, and the decomposition of aqueous electrolyte. In this study, a Zn|Zn(CF 3 SO 3 ) 2 +LiTFSI|V 2 O 3 @C cell is constructed to address the above issues. The V 2 O 3 @C electrode can be fully oxidized into amorphous V 2 O 5 @C simultaneously with Zn 2+ and H 2 O co-insertion. The cell delivers a high specific capacity of more than 240 mAh g −1 at 3 A g −1 , with extraordinary coulombic efficiency and capacity retention. The excellent electrochemical performances are attributed to synergistic effects between the V 2 O 3 @C electrode and the water-in-salt electrolyte with enhanced stability and improved interface reaction kinetics. Systematic improvements of this architecture indicate much promise for application.
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高影响因子
MATERIALS & DESIGN
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2019
·
IF 5.77
Lulu Xu,Ye Xiong,Baokang Dang,Zhangning Ye,Chunde Jin,Qingfeng Sun,Xiaohong Yu
Lightweight aerogels with superior cavities have attracted great interest in the field of electromagnetic wave absorbing materials. In this work, a hierarchical porous wood aerogel modified with Fe 3 O 4 /ZIF-67 (Fe 3 O 4 /ZIF-67@WA) with high compressibility and low-density was fabricated by in-situ anchoring of magnetic Fe 3 O 4 /ZIF-67 rhombohedral dodecahedron in naturally delignified wood aerogel. Combining the advantages of both aerogels and magnetic Fe 3 O 4 /ZIF-67 particles, Fe 3 O 4 /ZIF-67@WA reveals excellent compression-resilience and efficient microwave absorption performance. It possesses a maximum reflection loss (RL) of about −23.4 dB at a low thickness of 1.5 mm and a specific electromagnetic shielding effectiveness of up to ~156.3 dB cm 3 g −1 . Moreover, the composites exhibit a broad absorption bandwidth under an ultrahigh frequency of 13.5–18.0 GHz. In view of those excellent absorbing effects, the prepared green magnetic Fe 3 O 4 /ZIF-67@WA is likely to be used as a lightweight shielding material against electromagnetic radiation, especially for smart building and miniaturized device applications.
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高影响因子
International Journal of Electrochemical Science
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2023
·
IF 1.5
Bo Wang,Yanhong Liu,Jinhui Hao,Junbo Zhong,Furong Yu,Kewei Zhang,Hao Shen,Baodong Mao
Earth-abundant metal sulfides attracts large attention in recent years for hydrogen production via electrocatalytic water splitting. However, most works have been limited to the acidic condition, whereas the hydrogen evolution reaction (HER) in alkaline condition has rarely been discussed. Here we present an effective strategy for the growing of Co-Mo-S catalysts on carbon cloth via the controllable incorporation of cobalt into MoS 2 with L-cysteine and phosphomolybdic acid to achieve the synergistic interaction of CoS 2 and MoS 2 . The optimized Co-Mo-S catalysts (Co:Mo=1:2) showed a largely improved HER activity with an overpotential of 92 mV at current density of 10 mA cm -2 and Tafel slope of 82 mV dec -1 . The origin of the activity enhancement was investigated through a series of characterizations, where the synergetic effect of the intrinsic fast HER kinetics of metallic CoS 2 and the high active surface area of MoS 2 plays a crucial role. With appropriate amount of cobalt, the Co-Mo-S catalysts show a relatively uniform distribution on the carbon cloth to ensure the large surface area, whereas excessive cobalt results in the formation of the large CoS 2 particles with low HER activity from the low active surface area. Further electrochemical measurements demonstrated that the combination of larger exchange current density of CoS 2 and the high electrochemical double–layer capacitance (proportional to the active surface area) of MoS 2 together contributed to the HER activity enhancement of the Co-Mo-S catalysts. The Co-Mo-S/CC catalysts also show robust stability in alkaline solution. Our work provides a more profound understanding and an interesting view for the design of efficient ternary transition metal sulfide HER catalysts in alkaline condition by synergetic optimization of the intrinsic HER kinetics and the electrochemical active surface area.
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高影响因子
ACS Applied Materials & Interfaces
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2023
·
IF 9.5
Qiang Shen,Dongyu Jiang,Shiyu Cao,Xinqi Lu,Chong Mao,Xiaobing Dai,Fei Chen
High Li+ conductivity, good interfacial compatibility, and nano-scale particle size have always been essential conditions for selecting inorganic fillers in high-performance composite solid electrolytes. In this study, non-milled in situ LLZO fillers with nanosize was synthesized via the sol–gel method by rapid heating sintering, which resulted in more surface defects and fewer impurities in LLZO. Compared with milled LLZO fillers, these non-milled LLZO fillers with more surface defects and fewer impurities can effectively reduce the crystallinity of PEO and agglomeration in PEO, which can form composite electrolytes with high Li+ conductivity. Most importantly, the discharge capacity of the 7.5% non-milled LLZO–PEO-based LiFePO4/Li battery is about 135.5 mA h g–1 at 1C and 60 °C. After 100 cycles, the discharge specific capacity remains at 99%. It is worth noting that nano-sized non-milled LLZO will improve the discharge capacity of LiFePO4/Li batteries to 122.1 mA h g–1 at 0.2C and 30 °C.
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高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 27
·13610-13618
·
IF 11.301
Qian Zhang,Xuqiang Liu,Nana Li,Bihan Wang,Quan Huang,Lin Wang,Dongzhou Zhang,Yonggang Wang,Wenge Yang
Sillen compounds with the general formula of PbBiO2X (X = Cl, Br, I) are frequently studied as photocatalysts, and have attracted widespread attention due to their degradation of organic contaminants and water oxidation under visible light irradiation. Among many photoelectric materials, the band gap has been reduced approaching to the optimum value by pressure (1.34 eV for photovoltaic materials according to the Shockley–Queisser limit), which is favorable to their photo-responsive applications. However, such enhanced properties are usually restored after the pressure is released. Here, by combining the pressure and chemical engineering tools, we discovered that the optimized structure and optical band gap of PbBiO2Br could be locked after compression–decompression treatment cycling by selecting appropriate elemental species. The pressure-induced strain retention in PbBiO2Br could be the cause of the structural and optical irreversible behavior. Moreover, the compression behavior and optical band gap under high pressure in the PbBiO2X system were studied systematically by in situ high pressure synchrotron X-ray diffraction, UV-vis absorption spectroscopy and resistivity experiments. Along with the enhanced photocurrent under compression, the PbBiO2X compounds under external pressure exhibited great potential for photocatalytic applications under solar light irradiation. In a suitable element category, the pressure-driven structural lock-in preserves its optical performance, opening up a new window for manipulating and filtrating better multifunctional materials.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2010
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IF 1.758
Zhiqiao He,Angliang Zhang,Shuang Song,Zhiwu Liu,Jianmeng Chen,Xinhua Xu,Weiping Liu
In an attempt to utilize ozone effectively, a series of praseodymium-modified γ-Al2O3 (Pr/Al2O3) was prepared via incipient wetness impregnation using Pr(NO3)3·6H2O as the precursor. The structure and properties of the catalysts were studied by X-ray diffraction (XRD) and the Brunauer−Emmett−Teller (BET) method. Catalytic activity was evaluated by monitoring the degradation of succinic acid (SA) in the presence of ozone. The praseodymium modification can effectively enhance the ozonation activity of γ-Al2O3 upon SA removal. Increasing the calcination temperature of Pr/Al2O3 is disadvantageous for the catalytic process, whereas increasing the load of praseodymium is helpful. After three successive cycles, the Pr/Al2O3 catalyst remained stable in the catalytic ozonation of SA. Overall, the initial degradation rate of SA, as well as the saturated adsorption capacity of SA, were found to have a linear relation to changes of the surface hydroxyl groups of the catalyst. On this basis, we conclude that the significant enhancement of SA degradation using Pr/Al2O3 as a catalyst should be because praseodymium, in the form of Pr6O11, promoted the formation of surface hydroxyl groups. Hence, the adsorption was increased, and the degradation rate of SA was enhanced.
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2020
·
IF 6.551
Jiehan Duan,Jie Han,Siu Gin Cheung,Richard Kong Yuen Chong,Chui-Man Lo,Fred Wang-Fat Lee,Steven Jing-Liang Xu,Yang Yang,Nora Fung-yee Tam,Hai-Chao Zhou
Microplastic pollution is common in marine and coastal ecosystems, especially in mangrove wetlands. However, factors affecting the distribution of microplastics, such as plants, have not been sufficiently studied. We investigated the effect of different plant species on the distribution of sediment microplastics in two Nature Reserves in South China, viz. Futian Mangrove and Mai Po Mangrove. In Futian Mangrove, the abundance of total microplastics among three monospecific mangrove stands dominated by Sonneratia caseolaris , Kandelia obovata , and Sonneratia apetala was similar. The abundance of microplastics in the mudflat was similar to that in the forest interior, except for the fact that more fiber was found in the mudflat than in the interior of Sonneratia apetala. This suggested that the dense pneumatophores at the fringe prevented fibers from entering the mangrove forest . The significant positive dependence (p < 0.05) between the density of Sonneratia pneumatophores and the abundance of fibers highlighted the importance of pneumatophores. The abundance of total microplastics, predominantly in the form of fibers, in sediments at the forest fringe (2835 ± 713 items/kg d.w. and 2070 ± 224 items/kg d.w. in Futian and Mai Po, respectively) was higher than that in the forest interior and mudflat. There was no difference between the two latter locations in both mangroves, which demonstrated the significance of the fringe effect. This paper reports for the first time that the spatial distribution of microplastics in mangrove sediments was affected by plant species, which provides useful information for environmental processes of microplastics in coastal wetlands.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2017
·
IF 5.951
Liang Qi,Guangyin Ji,Zhigang Luo,Zhigang Xiao,Qingyu Yang
In this work, an enhanced starch-dissolving room-temperature ionic liquid 1-hydroxypropyl-3-methylimidazolium acetate ([C3OHmim]Ac) was tailor-made to serve as the polar phase in the formation of [C3OHmim]Ac/TX-100 + 1-butanol/cyclohexane (IL/O) microemulsion. Its superior solubility to starch was verified by the polarized-light microscope and turbidity test. Furthermore, a pseudoternary phase diagram, conductivity measurement, and dynamic light scattering (DLS) were used to analyze the phase behavior and microregion of IL/O microemulsion. On this basis starch nanoparticles with a mean diameter of 86.69 nm were successfully prepared in this novel IL/O microemulsion with octenyl succinic anhydride (OSA) maize starch as the raw material and epichlorohydrin as a cross-linker through microemulsion cross-linking reaction. For starch nanoparticles, Fourier transform infrared spectroscopy (FTIR) data demonstrated the formation of ester bonds, and cross-linking reaction in starch molecules and X-ray diffraction (XRD) disclosed the destruction of the crystal structure. In addition, scanning electron microscopy (SEM) intuitively revealed that OSA-modified starch nanoparticles possessed good dispersibility, nanoscaled size, and a relatively concentrated size distribution. Finally, drug loading and releasing properties of starch nanoparticles were investigated with indomethacin as a drug model.
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2015
·Vol. 21
·期 28
·10149-10159
·
IF 5.731
Fa-tang Li,Shao-jia Liu,Ya-bin Xue,Xiao-jing Wang,Ying-juan Hao,Jun Zhao,Rui-hong Liu,Dishun Zhao
Heterojunctions of g-C 3 N 4 /Al 2 O 3 (g-C 3 N 4 =graphitic carbon nitride) are constructed by an in situ one-pot hydrothermal route based on the development of photoactive γ-Al 2 O 3 semiconductor with a mesoporous structure and a high surface area (188 m 2 g −1 ) acting as electron acceptor. A structure modification function of g-C 3 N 4 for Al 2 O 3 in the hydrothermal process is found, which can be attributed to the coordination between unoccupied orbitals of the Al ions and lone-pair electrons of the N atoms. The as-synthesized heterojunctions exhibit much higher photocatalytic activity than pure g-C 3 N 4 . The hydrogen generation rate and the reaction rate constant for the degradation of methyl orange over 50 % g-C 3 N 4 /Al 2 O 3 under visible-light irradiation ( λ >420 nm) are 2.5 and 7.3 times, respectively, higher than those over pristine g-C 3 N 4 . The enhanced activity of the heterojunctions is attributed to their large specific surface areas, their close contact, and the high interfacial areas between the components as well as their excellent adsorption performance, and efficient charge transfer ability. Graphical Better together : A structure modification function of g-C 3 N 4 (graphitic carbon nitride) for Al 2 O 3 in the hydrothermal preparation process is found and highly efficient g-C 3 N 4 /Al 2 O 3 heterojunctions are constructed by an in situ route, which results in large specific surface areas, close contacts and high interfacial areas between the components. The defect sites of Al 2 O 3 act as acceptors of photo-induced electrons from g-C 3 N 4 (see figure), which contributes to an enhanced photocatalytic activity of g-C 3 N 4 .
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高影响因子
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