JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2025
·
IF 2.6
Cao Bo-Qun,Bao Hao-Tian,Zhang Ji-Wei,Shao Gang-Qin
The lithium-phosphorus-thiohalides (LPS X ) with superionic conduction are strong candidates for the new-generation solid electrolytes (SEs) in all-solid-state lithium-ion batteries (ASSLIBs). In this work, Li 6− x PS 5− x Cl 1+ x − y Br y (LPSCB; 0 ≤ x ≤ 0.7; 0 ≤ y ≤ 1.7) was synthesized by a solid-state method in which the key raw material of Li 2 S was prepared by an improved carbothermal reduction method without late decarbonization. The lattice flexibility and the degree of structural order are opposite effect and would lead to an optimum of the ionic conductivity at a composition of LPSCB. Li 6 PS 5 Br- and Li 5.5 PS 4.5 Br 1.5 -based ASSLIBs had the best rate capacity and cycle performance in Li 6 PS 5 Cl 1− y Br y - (0 ≤ y ≤ 1) and Li 5.5 PS 4.5 Cl 1.5− y Br y -based ones (0 ≤ y ≤ 1.5), respectively. To increase the ionic conductivity of LPSCB-type SEs and capacity/cycle performance of the related ASSLIBs, Br-introduction, mutual substitution and excess- X substitution were extremely effective strategies. Graphical
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Dong-Chu Lu,Juan Xie,Yuan Gao,Cheng-Xin Li,Shan-Lin Zhang
The TEC of BFZYZ is lower to 13.8 × 10 −6 1/K, matching well with the electrolyte. • Y and Zn co-doping enhances hydration ability and surface oxygen vacancies. • BFZYZ yields an R p of 0.26 Ω cm 2 at 600 °C, 50% lower than that of BFZ. • PCFC with BFZYZ electrode achieved peak power density of 0.8 W/cm 2 at 600 °C. • The cell with BFZYZ electrode operates stably for 500 h. Developing active and durable oxygen electrodes for both oxygen reduction and oxygen evolution reactions at low temperatures remains a major challenge for proton ceramic electrochemical cells (PCECs). Herein, a cobalt-free Y and Zn co-doped Ba(Fe,Zr)O 3−δ perovskite (BFZYZ) is developed as a PCEC oxygen electrode, integrating excellent electrochemical performance and durability. At 600 °C, Y and Zn co-doping reduces the polarization resistance by 50%, mainly owing to enhanced hydration capability and surface oxygen exchange, which accelerate ORR/OER kinetics. Meanwhile, BFZYZ shows a lower average thermal expansion coefficient of 13.8 × 10 −6 1/K over 30–600 °C, improving its thermal compatibility with the electrolyte. The PCEC with BFZYZ electrode achieves a peak power density of 0.8 W/cm 2 in fuel cell mode and a current density of 0.82 A/cm 2 at 1.3 V in steam electrolysis mode at 600 °C, with stable operation, demonstrating the potential of BFZYZ for high-performance and durable PCECs.
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ANALYTICA CHIMICA ACTA
·
2017
·
IF 4.95
Meng Chen,Ning Gan,Tianhua Li,Ye Wang,Qing Xu,Yinji Chen
An effective electrochemical aptasensor has been developed for the detection of multiplex antibiotics using Y-shaped DNA probes . These probes-based metal ions encoded the nanoscale metal-organic frameworks (NMOF) as a substrate, and circular strand-replacement DNA polymerization (CSRP) target triggered the amplification strategy. The Y-DNA probes (Y-DNA) were assembled using an assisted DNA probe (assisted DNA labeled with magnetic gold nanoparticles) which can hybridize to the captured DNA probe (consisting of aptamer and primer recognition region), and signal tags (NMOF encapsulating signal DNAs and different metal ions such as Pb 2+ or Cd 2+ ). Notably, NMOF was employed as the developed platform with a large specific area to load abundant metal ions that can produce distinguishable signals. In the presence of targets, chloramphenicol (CAP) and oxytetracycline (OTC) as models, the conformational change of the captured DNA can disassemble the Y-DNA probes that can consequently release the signal tags in the supernatant due to the high affinity of targets towards the aptamer domain than its complementary sequences. Subsequently, the exposed sequences of captured DNA serve as the initiators for triggering the target cyclic-induced polymerization with the assistance of Bst DNA polymerase. Thus, numerous signal tags could be detected by square wave voltammetry in the supernatant after magnetic separation, thereby amplifying the electrochemical signals. The proposed strategy exhibited a high sensitivity to antibiotics with a detection limit of 33 and 48 fM (S/N = 3) towards CAP and OTC, respectively. Moreover, this aptasensor showed promising applications for the detection of other analytes.
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PubMed
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 5
·2149
·
IF 4.6
Zhe Chen,Zhuoyi Wang,Yihua Yuan,Bo Liu,Jiangbo Yu,Zhiwen Wei,Keming Yun
DNA self-assembled fluorescent nanoprobes have been developed for bio-imaging owing to their high resistance to enzyme degradation and great cellular uptake capacity. In this work, we designed a new Y-shaped DNA fluorescent nanoprobe (YFNP) with aggregation-induced emission (AIE) characteristic for microRNA imaging in living cells. With the modification of the AIE dye, the constructed YFNP had a relatively low background fluorescence. However, the YFNP could emit a strong fluorescence due to the generation of microRNA-triggered AIE effect in the presence of target microRNA. Based on the proposed target-triggered emission enhancement strategy, microRNA-21 was detected sensitively and specifically with a detection limit of 122.8 pM. The designed YFNP showed higher bio-stability and cell uptake than the single-stranded DNA fluorescent probe, which has been successfully applied for microRNA imaging in living cells. More importantly, the microRNA-triggered dendrimer structure could be formed after the recognition of target microRNA, achieving a reliable microRNA imaging with a high spatiotemporal resolution. We expect that the proposed YFNP will become a promising candidate for bio-sensing and bio-imaging.Keywords:DNA fluorescent nanoprobes;Y-shaped;aggregation-induced emission;microRNA;live-cell imaging
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ACS Catalysis
·
2017
·
IF 10.614
Wenwu Zhou,Meifang Liu,Qing Zhang,Qiang Wei,Sijia Ding,Yasong Zhou
Mesoporous MY-xGa zeolites exhibiting both crystallized pore walls and narrowly dispersed mesopores with different Ga content were successfully synthesized. The synthesized samples were characterized by XRD, N2 adsorption desorption isotherms, SEM, TEM, XPS, FTIR, 29Si MAS NMR, 71Ga MAS NMR, and Py-FTIR methods. The results show that the synthesized samples exhibit unique open channel like mesopore systems and outstanding crystallite natures; no nonframework Ga species were observed over the MY-xGa series samples, and their acidic properties can be modulated by varying the Ga/Al ratio in the initial synthesis gel. The corresponding NiMo/HMY-xGa catalysts were prepared via the incipient wetness coimpregnation method; the morphologies of the sulfide catalysts were characterized by HRTEM, and the covalent states of the active metals were characterized by XPS. The catalytic activities of the investigated catalysts for the 4,6-DMDBT HDS reaction were assessed, and the collected products were analyzed by GC and GC-MS methods. The catalyst NiMo/HMY-0.5Ga showed the highest catalytic activity due to the synergistic effect of modulated acidic properties, excellent morphology, highest sulfidation degree, and proper proportion of NiMoS phase. More importantly, 4-MDBT, DBT, and BP were observed and identified as the products of the 4,6-DMDBT HDS reaction, designated as the demethylation pathway (DM) for the 4,6-DMDBT HDS reaction. Finally, a reaction network including DDS, HYD, ISO, and DM pathways for the 4,6-DMDBT HDS reaction over catalyst NiMo/HMY-0.5Ga was proposed.
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Journal of Chemistry
·
2021
·Vol. 2021
·期 1
·5556295
·
IF 2.506
Zongqiang Zhu,Hongqu Yang,Jie Liu,Yinian Zhu,Shen Tang,Lihao Zhang,Xingxing Wang
Basic ferric sulfate-arsenates [FeSAsOH, Fe(SO 4 ) x (AsO 4 ) y (OH) z ·nH 2 O] were prepared and characterized to study their potential fixation of arsenic in the oxidizing and acidic environment through a dissolution for 330d. The synthetic solids were well-shaped monoclinic prismatic crystals. For the dissolution of the sample FeSAsOH–1 [Fe(SO 4 ) 0.27 (AsO 4 ) 0.73 (OH) 0.27 ·0.26H 2 O] at 25–45°C and initial pH 2, all constituents preferred to be dissolved in the order of AsO 4 3− > SO 4 2− > Fe 3+ in 1–3 h, in the order of SO 4 2− > AsO 4 3− > Fe 3+ from 1–3 h to 12–24 h, and finally in the order of SO 4 2− > Fe 3+ > AsO 4 3− . The released iron, sulfate, and arsenate existed dominantly as Fe 3+ /Fe(OH) 2+ /FeSO 4 + , HSO 4 − /SO 4 2− /FeSO 4 + , and H 3 AsO 4 0 /H 2 AsO 4 − , respectively. The higher initial pHs (6 and 10) could obviously inhibit the release of Fe 3+ from solid into solution, and the solid components were released in the order of SO 4 2− > AsO 4 3− > Fe 3+ . The crystal tops were first dissolved, and the crystal surfaces were gradually smoothed/rounded until all edges and corners disappeared. The dissociations were restricted by the Fe-O(H) breakdown in the FeO 6 octahedra and obstructed by the OH − and AsO 4 tetrahedra outliers; the lowest concentration of the dissolved arsenic was 0.045 mg/L. Based on the dissolution experiment at 25°C and pH 2, the solubility products ( K sp ) for the basic ferric sulfate-arsenate [Fe(SO 4 ) 0.27 (AsO 4 ) 0.73 (OH) 0.27 ·0.26H 2 O], which are equal to the ion activity products (logˍIAP) at equilibrium, were calculated to be -23.04 ± 0.01 with the resulting Gibbs free energies of formation (Δ G f o ) of −914.06 ± 0.03 kJ/mol.
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AIP Advances
·
2022
·Vol. 12
·期 5
·
IF 1.697
Tu Huan,Zhao Guoying,Hou Jingshan,Liu Yufeng,Zhou Yan,Zhang Ganghua,Sun Hong-Tao,Li Ji-Guang,Fang Yongzheng
White light emitting diodes (LEDs) suffer from two most common drawbacks: the deficiency of the red component and the poor thermal stability of silicone. Ce 3+ -doped garnet phosphors with tailor-made luminescence properties can be achieved by variations in {A}, {B}, and {C} cation sites. Herein, a simultaneous ion co-substitution design strategy has been adopted to synthesize a series of (Y, Ca) 3 (Al, Mg) 2 (Al, Si) 3 O 12 garnet phosphors and corresponding phosphor-in-glass (PiG) films. The co-substitution is finely restricted to the assigned sites. The emission peak is shifted from 529 to 565 nm, which is beneficial to obtain low color temperatures and high color rendering using a single phosphor for white LEDs. By employing the as-synthesized phosphor, the corresponding PiG films were fabricated by the low temperature co-sintering technology using the SiO 2 –B 2 O 3 –ZnO–Na 2 O glass system characterized with excellent thermal stability and moisture resistance. The morphological and elemental analyses demonstrated that the as-made phosphor powders were uniformly distributed in the glass host without any interfacial reactions. Finally, modular white LEDs with a high color rendering (Ra = 82.7) is achieved through the as-synthesized PiG film on an InGaN blue chip. This study may open up a facile approach to obtain high quality luminescence based on the mono-luminescence center, avoiding excitation energy wastage and low quantum efficiency aroused by multi-luminescence centers or color compensation phosphors in glass.
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Food Bioscience
·
2025
·
IF 5.9
Lijun Ling,Fanjin Kong,Yijuan Jiang,Wenyue Zhang,Rongxiu Mo,Rui Yue,Yao Li,Lijun Feng,Yongpeng Zhou
Citrus reticulata 'Shiyue Ju' are prone to fungal infections because of their high maturity, water content, and remote cultivation locations. Chemical control, though effective, leaves fruit residues that endanger health and the environment. Endophytic VOCs potently inhibit pathogens with high efficacy, low cost, and minimal ecological impact, positioning them as promising natural post-harvest preservatives. In this study, we isolated the pathogenic fungus ( Penicillium italicum Q-1) from rotting Citrus reticulata 'Shiyue Ju' and used Q-1 as the test strain to screen for endophytic fungi Y-4 isolated from healthy Citrus reticulata 'Shiyue Ju' that can produce VOCs with strong antagonistic activity. We analyzed the VOC components and screened for the highly bactericidal activity compound 3-pentene-2-one,exhibiting complete (100 %) growth inhibition at 4 μL/L. We also investigated the inhibitory activity and mechanisms of action of the VOCs and antifungal compounds. The results indicated that the VOCs produced by Y-4 and 3-pentene-2-one could inhibit the growth and reproduction of the pathogenic fungus, primarily by disrupting the normal morphological structure of hyphae and spores and damaging the integrity of the cell membrane. Furthermore, 3-pentene-2-one at appropriate concentrations can inhibit the spread of pathogenic fungi on Citrus reticulata 'Shiyue Ju' and effectively delay the decline in fruit quality. These findings indicate that 3-pentene-2-one is a powerful tool for controlling P. italicum and provides a theoretical basis for post-harvest disease management of Citrus reticulata 'Shiyue Ju' .
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NEW JOURNAL OF CHEMISTRY
·
2017
·Vol. 41
·期 7
·2793-2799
·
IF 3.269
Guangyin Fan,Xiaojing Li,Yuling Ma,Yun Zhang,Jiangtao Wu,Bin Xu,Ting Sun,Daojiang Gao,Jian Bi
Exploring the applications of two dimensional layered Ti3C2X2 (X = OH, F) is of great importance because of its excellent physical and chemical properties. Herein, we report the synthesis of the bimetallic catalyst PtyCo1−y/Ti3C2X2via a facile one-pot approach using Ti3C2X2 as the support. The in situ synthesized PtyCo1−y/Ti3C2X2 is subsequently applied as a catalyst for hydrogen evolution from the hydrolysis of ammonia borane at 25 °C. Experimental results show that Pt0.08Co0.92/Ti3C2X2 exhibits excellent catalytic activity for the hydrolysis of ammonia borane with a high hydrogen generation rate of 100.7 L H2 (min gPt)−1 and turnover frequency of 727 mol H2 (min molPt)−1 because of the synergistic effect between Pt and Co. Moreover, Pt0.08Co0.92/Ti3C2X2 could be recovered from the reaction mixture by a magnet and recycled at least seven times, thus showing its high recycling efficiency.
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Nanomaterials
·
2021
·Vol. 11
·期 9
·2177
·
IF 5.076
Easar Alam,Qiyan Feng,Hong Yang,Jiaxi Fan,Sameena Mumtaz,Farida Begum
In this study, iron oxide (Fe3O4) was coated with ZrO2, and doped with three rare earth elements((Y/La/Ce), and a multi-staged rare earth doped zirconia adsorbent was prepared by using uniform design U14, Response Surface methodology, and orthogonal design, to remove As3+and As5+from the aqueous solution. Based on the results of TEM, EDS, XRD, FTIR, and N2-adsorption desorption test, the best molar ratio of Fe3O4:TMAOH:Zirconium butoxide:Y:La:Ce was selected as 1:12:11:1:0.02:0.08. The specific surface area and porosity was 263 m2/g, and 0.156 cm3/g, respectively. The isothermal curves and fitting equation parameters show that Langmuir model, and Redlich Peterson model fitted well. As per calculations of the Langmuir model, the highest adsorption capacities for As3+and As5+ions were recorded as 68.33 mg/g, 84.23 mg/g, respectively. The fitting curves and equations of the kinetic models favors the quasi second order kinetic model. Material regeneration was very effective, and even in the last cycle the regeneration capacities of both As3+and As5+were 75.15%, and 77.59%, respectively. Adsorption and regeneration results suggest that adsorbent has easy synthesis method, and reusable, so it can be used as a potential adsorbent for the removal of arsenic from aqueous solution.Keywords:magnetic Fe3O4;uniform design;surface response methodology;multi-staged doping;arsenic (III & V) removal
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Materials
·
2023
·Vol. 16
·期 20
·6667
·
IF 3.4
Yukun Li,Svenja Hanson,Cheng Heng Pang,Peng Lyu,Jun Jiang
In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748Mn2+0.024Cr3+0.0012)5O12(Rex= 0, Gd0.333, Gd0.666, Gd0.997, Tb0.333, Tb0.666, Tb0.997and Lu0.997were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr3+and Mn2+effectively enhanced the red component of Ce3+spectra through the intense energy transfer from Ce3+ions to Mn2+/Cr3+ions. The crystal field splitting of [GdO8] and [TbO8] was more extensive than that of [YO8], causing a massive redshift in the Ce3+emission peaks from 542 to 561 and 595 nm, while [LuO8] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd0.333Y0.664)3Al5O12phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.Keywords:garnet phosphor;laser lighting;full spectrum;spectral modulation;Ce/Mn/Cr: (Re,Y)3Al5O12
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Advanced Sustainable Systems
·
2025
·
IF 6.1
Shi-mao Sun,Xing-fu Zheng,Hong-chang Liu,Wei-qi Xie,Hong-wei Liu,Ze Shen,Chen-kai Shang,Can Liu,Yun-chao Li,Jian Zhu,Jun Wang
Using diatoms, a typical microbial system of biomineralization, as a template, La 2 O 3 and Y 2 O 3 are synthesized in situ via biological self-assembly during the cultivation of diatoms in La 3+ /Y 3+ -containing media without any supplements, reducing agents or triggering agents. Then, diatom frustules modified with La and Y nanoparticles (NPs) are prepared via high-temperature reduction and crystallization. Furthermore, it has been used as an anode material for lithium-ion batteries and has excellent electrochemical properties. The DFT calculations reveal that the doping of La and Y changes the energy band structure near the Fermi level of SiO 2 and increases the current carrying density. The diatom frustule SiO 2 anodes loaded with La and Y nanoparticles (DBS@C-La-10 and DBS@C-Y-10) have specific discharge capacities of approximately 1021.3 and 980.7 mAh g −1 , respectively, after 220 cycles. This is the first study in which the mineralization behavior of rare earth elements on diatom frustules is reported and applied to anodes in lithium-ion batteries. This work provides a new option for applying rare earth elements in the field of energy storage.
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危险品化学品经营许可证（带存储）