Search results for: Shaowei Zhang

Items from 1 to 20 out of 125 results

article

Six‐principal‐component high‐entropy carbonitride aerogel thermal insulator: Theoretical and experimental studies

Lei Han, Yu Chen, Huifang Wang, Haijun Zhang, more

Journal of the American Ceramic Society > 107 > 12 > 8572 - 8582

A combined theoretical and experimental approach was used to investigate high‐entropy carbonitride. Density functional theory (DFT) calculations suggest that the [N]/([C]+[N]) ratio in (Ti_1/6Cr_1/6V_1/6Mo_1/6Nb_1/6Ta_1/6)(C₁₋_xN_x) affects its lattice thermal conductivity which could be decreased by 89% by increasing the ratio from 0 to 1/2. Moreover, a robust, flame‐retardant and high‐temperature resistant...

article

Mechanistic implications of the ternary complex structural models for the photoenzyme protochlorophyllide oxidoreductase

Aoife Taylor, Shaowei Zhang, Linus O. Johannissen, Michiyo Sakuma, more

The FEBS Journal > 291 > 7 > 1404 - 1421

The photoenzyme protochlorophyllide oxidoreductase (POR) is an important enzyme for understanding biological H‐transfer mechanisms. It uses light to catalyse the reduction of protochlorophyllide to chlorophyllide, a key step in chlorophyll biosynthesis. Although a wealth of spectroscopic data have provided crucial mechanistic insight, a structural rationale for POR photocatalysis has proved challenging...

article

Modified Molten Salt Assisted Exfoliation of Large‐Size 2D Materials

Ziyu Li, Kezhuo Li, Yage Li, Yingjie Yu, more

Advanced Functional Materials > 34 > 10 > n/a - n/a

2D materials hold great promise for numerous applications, and the physical properties of individual 2D materials depend strongly on their thickness and lateral size. Currently, there is a lack of a straightforward method to produce 2D materials with both high‐quality and ultra‐high aspect ratios. Herein, a modified molten salt‐assisted exfoliation (MMSAE) strategy is proposed to prepare high‐quality...

article

Effect of mitomycin C and 5‐fluorouracil on wound healing in patients undergoing glaucoma surgery: A meta‐analysis

Sha Cui, Juntao Zhang, Shaowei Zhang, Jinrong Li, more

International Wound Journal > 21 > 3 > n/a - n/a

Increased intraocular pressure (IOP) is a risk factor for glaucoma. One treatment option is trabeculectomy. Antimetabolic agents are used in the operation to decrease the post‐operative scarring of the wound. The two most common medicines are Mitomycin C (MMC) and 5‐Fluorouracil (5‐FU). The aim of this research is to assess the effect of MMC on post‐operation wound healing in comparison with 5‐FU...

article

On the Practical Applicability of Rambutan‐like SiOC Anode with Enhanced Reaction Kinetics for Lithium‐Ion Storage

Kezhuo Li, Gaoqian Yuan, Xuefeng Liu, Yan Guo, more

Advanced Functional Materials > 33 > 43 > n/a - n/a

Silicon oxycarbide (SiOC) possesses great potential in lithium‐ion batteries owing to its tunable chemical component, high reversible capacity, and small volume expansion. However, its commercial application is restricted due to its poor electrical conductivity. Herein, rambutan‐like vertical graphene coated hollow porous SiOC (Hp‐SiOC@VG) spherical particles with an average diameter of 302 nm are...

article

Large‐scale fabrication of TiC@C powders and its effect on the properties of Al₂O₃‐MgO‐C castables

Li Zhao, Yicheng Yin, Yong Li, Haoxuan Ma, more

International Journal of Applied Ceramic Technology > 20 > 6 > 3626 - 3634

High performance carbon containing castables have always been pursued by researchers and steelmaking producers, unfortunately, poor water‐wettability of graphite flakes was greatly limited their application in castables. To respond this, we proposed a large‐scale and low‐cost modified molten salt shielding synthesis technique for fabricating TiC coated graphite in air atmosphere using graphite flake...

article

Manufacture and Mechanical Properties of Batwing‐Type Al Cellular Metamaterials by Selective Laser Melting

Gaoqian Yuan, Qing Zhu, Kezhuo Li, Jingzhe Zhang, more

Advanced Engineering Materials > 25 > 17 > n/a - n/a

Designing metallic cellular structures with triply periodic minimal surfaces (TPMS) is a novel approach for preparing multifunctional and lightweight metamaterials. TPMS‐structured Batwing Al cellular metamaterials are fabricated using selective laser melting. The mechanical performance, failure/deformation modes, and energy absorption capacity of the metamaterials are investigated. It is demonstrated...

article

Oxidation behaviors of low carbon MgO‐C refractories: Roles of Ti₂AlC and Ti₂AlN

Junfeng Chen, Yifei Du, Yu Zhang, Mithun Nath, more

Journal of the American Ceramic Society > 106 > 7 > 4411 - 4424

In this study, Ti₂AlC/Ti₂AlN powders were first incorporated to fabricate low‐carbon MgO‐C refractories, and their oxidation behaviors were investigated. Computed tomography (CT) results indicated that stress cracks only occurred in the Ti₂AlC‐added sample after exposure to 1100°C, and the anomalous oxidation behavior of Ti₂AlC powder at 578°C worsened the oxidation result at 1100°C for MgO‐C refractories...

article

Low‐temperature synthesis of six‐principal‐component high‐entropy transition‐metal carbide aerogel thermal insulator

Lei Han, Yu Chen, Haijun Zhang, Guangqiang Li, more

Journal of the American Ceramic Society > 106 > 2 > 841 - 847

High‐entropy transition‐metal (IVB–VIB) carbide (HETMC) ceramics consisting of multiple principal components generally correspond to higher configuration entropy, and exhibit better overall performance. However, they also present certain synthesis challenges, for example, in the synthesis of a three‐dimensional six‐principal‐component HETMC aerogel. In the present work, as an example a novel (Ti_0.167...

article

Influence of sintering temperature on the interfacial behavior of Ti₃Al(Si)C₂ ceramic and Ti6Al4V alloy

Junli Xiao, Yaowu Wei, Hui Zhou, Shaowei Zhang, more

Journal of the American Ceramic Society > 105 > 12 > 7635 - 7648

MAX phases possess a combination of ceramic and metallic characteristics, exhibiting good mechanical properties, high thermal conductivity, high thermal stability, and corrosion resistance. To apply MAX phases containing Ti and Al in the casting process of titanium alloy to improve the alloy properties, the interfacial behaviors between pre‐sintered Ti₃Al(Si)C₂ substrates and molten Ti6Al4V alloy...

article

Low‐temperature synthesis of high‐entropy (Hf_0.2Ti_0.2Mo_0.2Ta_0.2Nb_0.2)B₂ powders combined with theoretical forecast of its elastic and thermal properties

Yu Gao, Liang Huang, Zhaoming Tong, Jianghao Liu, more

Journal of the American Ceramic Society > 105 > 10 > 6370 - 6383

A theoretical calculation combined with experiment was used to study high‐entropy (Hf_0.2Ti_0.2Mo_0.2Ta_0.2Nb_0.2)B₂ (HEB‐HfTiMoTaNb). The theoretical calculation suggested HEB‐HfTiMoTaNb could be stable over a wide temperature range. Then, a novel solvothermal/molten salt‐assisted borothermal reduction method was proposed to efficiently pre‐disperse transitional metal atoms in a precursor and synthesize...

article

Kinetically Accelerated Lithium Storage in High‐Entropy (LiMgCoNiCuZn)O Enabled By Oxygen Vacancies

Xuefeng Liu, Yingying Xing, Ke Xu, Haijun Zhang, more

Small > 18 > 18 > n/a - n/a

High‐entropy oxides (HEOs) are gradually becoming a new focus for lithium‐ion battery (LIB) anodes due to their vast element space/adjustable electrochemical properties and unique single‐phase retention ability. However, the sluggish kinetics upon long cycling limits their further generalization. Here, oxygen vacancies with targeted functionality are introduced into rock salt‐type (MgCoNiCuZn)O through...

article

Preparation of SiC coated graphite flake with much improved performance via a molten salt shielded method

Yicheng Yin, Shijie Wang, Shaowei Zhang, Junyan Cui, more

International Journal of Applied Ceramic Technology > 19 > 3 > 1529 - 1539

Oxide‐based castables have been used in high‐temperature furnace linings, especially for steel and iron processing, however, the poor thermal shock resistance and corrosion resistance limited the further enhancement of their service life. Carbon possesses excellent performances including low wettability to slag, low thermal expansion coefficient, which can greatly improve thermal shock resistance...

article

Tunable Continuous‐Variable Tripartite Entanglement via Cascaded Third‐Order Nonlinear Processes in a Ring Cavity

Feng Wen, Sijia Hui, Shaowei Zhang, Zhenkun Wu, more

Annalen der Physik > 534 > 2 > n/a - n/a

In this study, a tunable continuous‐variable (CV) triple‐mode entanglement scheme generated by cascading a spontaneous parametric four‐wave and a sum‐frequency four‐wave mixing process is proposed. The entanglement feature of the triple‐mode is demonstrated by using a sufficient inseparability criterion. It is confirmed that the triple‐mode CV entanglement property, including the degree of violation...

article

(La,Sr)(Ti,Fe)O_3−δ perovskite with in‐situ constructed FeNi₃ nanoparticles as fuel electrode for reversible solid oxide cell

Lijie Zhang, Yihang Li, Binze Zhang, Yanhong Wan, more

International Journal of Energy Research > 45 > 15 > 21264 - 21273

As a promising technology to address the energy storage challenge, reversible solid oxide cell (RSOC) plays a vital role in conversion between chemical energy and electrical power. Over the last several decades, developing high performance fuel electrodes suitable for reversible operation have attracted extensive attentions. This work develops La_0.1Sr_0.85Ti_0.35Fe_0.6Ni_0.05O_3−δ which is an A‐site deficient...

article

Formation of ferrospinel layer at the corroded interface between Al₂O₃‐spinel refractory and molten steel in RH refining ladle

Junfeng Chen, Yaping Cheng, Yuanyuan Li, Junli Xiao, more

Journal of the American Ceramic Society > 104 > 11 > 6044 - 6053

Refining ladle is generally the last inclusion‐removal vessel before the continuous casting of steel, so, it has a vital effect on the final steel quality. In this work, degradation process of a cement‐free Al₂O₃‐MgAl₂O₄ refractory in contact with molten steel/slag in the metal bath area of a Ruhrstahl Heraeus (RH) refining ladle was investigated. A reaction product layer with the formation of ferrospinel...

article

Synthesis of monophase two‐dimensional α‐Si₃N₄ nanoplatelets via an ionothermal route

Sen Wang, Feng Liang, Saisai Li, Liang Tian, more

International Journal of Applied Ceramic Technology > 18 > 4 > 1183 - 1191

Monophase α‐Si₃N₄ was prepared by a salt melt strategy using Si as a starting material. The results showed that molten salt enhanced the conversion of Si to monophase α‐Si₃N₄, and some as‐synthesized α‐Si₃N₄ nanoparticles had a hexagonal platelet morphology. The α‐Si₃N₄ hexagonal nanoplatelets had an average lateral dimension of about 170 nm and a thickness of about 5.2 nm. The nitridation of Si in...

article

Defective Graphitic Carbon Nitride Modified Separators with Efficient Polysulfide Traps and Catalytic Sites for Fast and Reliable Sulfur Electrochemistry

Zhaoming Tong, Liang Huang, Haipeng Liu, Wen Lei, more

Advanced Functional Materials > 31 > 11 > n/a - n/a

The serious shuttle effect of lithium‐sulfur batteries limits the efficient realization of high rate charging and discharging under high sulfur loading in practical applications. Herein, this work reports a strong mitigation toward lithium polysulfide (LiPSs) adsorption/catalysis by introducing defective graphite phase carbon nitride (g‐C₃N₄) as an effective additive. Without significant weight increase,...

article

Formation of liquid‐phase isolation layer on the corroded interface of MgO/Al₂O₃‐SiC‐C refractory and molten steel: Role of SiC

Tianqing Li, Junfeng Chen, Junli Xiao, Yaowu Wei, more

Journal of the American Ceramic Society > 104 > 5 > 2366 - 2377

Formation of a dense layer on corroded interface to suppress corrosion is always desired, but it is controlled by numerous environmental conditions. In this work, corroded microstructures of MgO/Al₂O₃‐SiC‐C refractories in metal bath area of ladle furnace were investigated after industrial trails. A liquid‐phase isolation layer in which MgO islands and liquid phases was established on the corroded...

article

Dual role of the active site ‘lid’ regions of protochlorophyllide oxidoreductase in photocatalysis and plant development

Shaowei Zhang, Alan R. F. Godwin, Aoife Taylor, Samantha J. O. Hardman, more

The FEBS Journal > 288 > 1 > 175 - 189

Protochlorophyllide oxidoreductase (POR) catalyses reduction of protochlorophyllide (Pchlide) to chlorophyllide, a light‐dependent reaction of chlorophyll biosynthesis. POR is also important in plant development as it is the main constituent of prolamellar bodies in etioplast membranes. Prolamellar bodies are highly organised, paracrystalline structures comprising aggregated oligomeric structures...

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INFONA - science communication portal

Search results for: Shaowei Zhang

Six‐principal‐component high‐entropy carbonitride aerogel thermal insulator: Theoretical and experimental studies

Mechanistic implications of the ternary complex structural models for the photoenzyme protochlorophyllide oxidoreductase

Modified Molten Salt Assisted Exfoliation of Large‐Size 2D Materials

Effect of mitomycin C and 5‐fluorouracil on wound healing in patients undergoing glaucoma surgery: A meta‐analysis

On the Practical Applicability of Rambutan‐like SiOC Anode with Enhanced Reaction Kinetics for Lithium‐Ion Storage

Large‐scale fabrication of TiC@C powders and its effect on the properties of Al₂O₃‐MgO‐C castables

Manufacture and Mechanical Properties of Batwing‐Type Al Cellular Metamaterials by Selective Laser Melting

Oxidation behaviors of low carbon MgO‐C refractories: Roles of Ti₂AlC and Ti₂AlN

Low‐temperature synthesis of six‐principal‐component high‐entropy transition‐metal carbide aerogel thermal insulator

Influence of sintering temperature on the interfacial behavior of Ti₃Al(Si)C₂ ceramic and Ti6Al4V alloy

Low‐temperature synthesis of high‐entropy (Hf_0.2Ti_0.2Mo_0.2Ta_0.2Nb_0.2)B₂ powders combined with theoretical forecast of its elastic and thermal properties

Kinetically Accelerated Lithium Storage in High‐Entropy (LiMgCoNiCuZn)O Enabled By Oxygen Vacancies

Preparation of SiC coated graphite flake with much improved performance via a molten salt shielded method

Tunable Continuous‐Variable Tripartite Entanglement via Cascaded Third‐Order Nonlinear Processes in a Ring Cavity

(La,Sr)(Ti,Fe)O_3−δ perovskite with in‐situ constructed FeNi₃ nanoparticles as fuel electrode for reversible solid oxide cell

Formation of ferrospinel layer at the corroded interface between Al₂O₃‐spinel refractory and molten steel in RH refining ladle

Synthesis of monophase two‐dimensional α‐Si₃N₄ nanoplatelets via an ionothermal route

Defective Graphitic Carbon Nitride Modified Separators with Efficient Polysulfide Traps and Catalytic Sites for Fast and Reliable Sulfur Electrochemistry

Formation of liquid‐phase isolation layer on the corroded interface of MgO/Al₂O₃‐SiC‐C refractory and molten steel: Role of SiC

Dual role of the active site ‘lid’ regions of protochlorophyllide oxidoreductase in photocatalysis and plant development

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