Query：
学者姓名：郑振环
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
Photoferroelectrics that involve strong light-matter coupling are regarded as promising candidates for realizing bulk photovoltaic and photoelectric effects via light absorption. Nonetheless, understanding the photoresponse mechanism or modulation of performance from a microscopic point of view is scarcely explored through quantification of macroscopic properties. Herein, we design a model material, Gd3+-doped (K0.5Na0.5)NbO3 ferroelectric-transparent ceramics, and present an advantageous strategy to enhance the optoelectronic coupling through joint modulations of lattice distortion and oxygen vacancies, along with inner defects and ferroelectric domains. Significantly, their microcosmic manipulation can be intuitively and facilely evaluated by the optical transparency of each ceramic. An approximately 10(4) fold increase in conductivity under ultraviolet irradiation was produced. Under the cocoupling between external physical fields, the synergy of photoelectric stimulation increased the photoconductivity of the ceramics by 13.89 times. Additionally, a significant increase (4.5-fold) in the current output from the photovoltaic effect was achieved via ferroelectric domains of moderate size, whose size could be easily assessed by optical transmittance. In situ microscopic observations confirmed that the configuration of oxygen vacancy-dependent ferroelectric domains contributes to the enhanced optoelectronic response. This research provides a distinct way to develop inexpensive optocoupler devices and meet the requirements for multifunctional integration in single photoferroelectrics.
Keyword ：
ferroelectric domains ferroelectric domains oxygen vacancies oxygen vacancies photoferroelectrics photoferroelectrics potassium-sodium niobate potassium-sodium niobate transparent ceramics transparent ceramics
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu, Xiao , Wang, Peng , Jiang, Xingan et al. Photoconductivity and Photovoltaic Effect Strengthened via Microstructural Cotuning in Ferroelectrics: Intuitively Assessed by Macroscopic Transparency [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (41) : 55760-55770 . |
| MLA | Wu, Xiao et al. "Photoconductivity and Photovoltaic Effect Strengthened via Microstructural Cotuning in Ferroelectrics: Intuitively Assessed by Macroscopic Transparency" . | ACS APPLIED MATERIALS & INTERFACES 16 . 41 (2024) : 55760-55770 . |
| APA | Wu, Xiao , Wang, Peng , Jiang, Xingan , Cao, Shuyao , Lin, Jinfeng , Xiong, Rui et al. Photoconductivity and Photovoltaic Effect Strengthened via Microstructural Cotuning in Ferroelectrics: Intuitively Assessed by Macroscopic Transparency . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (41) , 55760-55770 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
High-entropy oxides have attracted more and more attention due to their unique structures and potential applications. In this work, M3O4(M=FeCoCrMnMg) high entropy oxide powders were synthesized by a facile solid-state reaction method. The powders were characterized by different methods. Furthermore, M3O4/Ni foam (M3O4/NF) electrode was prepared by a coating method, followed by investigation of its supercapacitor performance. The results showed that, with the increase of calcining temperature, Fe2O3(H)/Co3O4(S)/Cr2O3(E) and Mn2O3(B) dissolved successively in the crystal lattice of spinel structure. After M3O4 powders being calcined at 900 degrees C for 2 h, single spinel structure (FCC, Fd-3m, a=0.8376 nm) was obtained with uniform distribution of Fe, Co, Cr, Mn, and Mg elements, the typical characteristic of high entropy oxide. In addition, the mass specific capacitance of M3O4/NF composite electrode is 193.7 F.g(-1), with 1 mol/L KOH as electrolyte and 1 A.g(-1) as current density, which indicated that the M3O4 high entropy oxide can be considered as a promising candidate for the electrode material in the field of supercapacitor applications.
Keyword ：
M3O4 high entropy oxide M3O4 high entropy oxide solid state reaction method solid state reaction method spinel structure spinel structure supercapacitor performance supercapacitor performance
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang Yiliang , Ai Yunlong , Yang Shuwei et al. Facile Synthesis and Supercapacitor Performance of M3O4(M=FeCoCrMnMg) High Entropy Oxide Powders [J]. | JOURNAL OF INORGANIC MATERIALS , 2021 , 36 (4) : 425-430 . |
| MLA | Wang Yiliang et al. "Facile Synthesis and Supercapacitor Performance of M3O4(M=FeCoCrMnMg) High Entropy Oxide Powders" . | JOURNAL OF INORGANIC MATERIALS 36 . 4 (2021) : 425-430 . |
| APA | Wang Yiliang , Ai Yunlong , Yang Shuwei , Liang Bingliang , Zheng Zhenhuan , Ouyang Sheng et al. Facile Synthesis and Supercapacitor Performance of M3O4(M=FeCoCrMnMg) High Entropy Oxide Powders . | JOURNAL OF INORGANIC MATERIALS , 2021 , 36 (4) , 425-430 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
高熵氧化物以其独特的结构和潜在的应用前景引起了越来越多的关注。本工作采用简单易行的固相反应法制备了M_3O_4(M=FeCoCrMnMg)高熵氧化物粉体,采用不同手段对粉体进行表征,并采用涂覆法制备了M_3O_4/泡沫镍(M_3O_4/NF)复合电极,研究其超电容性能。结果表明,随着煅烧温度升高,Fe_2O_3(H)/Co_3O_4(S)/Cr_2O_3(E)和Mn_2O_3(B)相继固溶进入尖晶石主晶相晶格;在900℃煅烧2h所得M_3O_4粉体的平均粒径为0.69μm,具有单一尖晶石结构(面心立方,Fd-3m,a=0.8376 nm),且Fe、Co、Cr、Mn和Mg五种元素在晶粒内均匀分布...
Keyword ：
M_3O_4高熵氧化物 M_3O_4高熵氧化物 固相反应法 固相反应法 尖晶石结构 尖晶石结构 超电容性能 超电容性能
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王义良 , 艾云龙 , 杨书伟 et al. M_3O_4(M=FeCoCrMnMg)高熵氧化物粉体的简易制备及超电容性能研究 [J]. | 无机材料学报 , 2021 , 36 (04) : 425-430 . |
| MLA | 王义良 et al. "M_3O_4(M=FeCoCrMnMg)高熵氧化物粉体的简易制备及超电容性能研究" . | 无机材料学报 36 . 04 (2021) : 425-430 . |
| APA | 王义良 , 艾云龙 , 杨书伟 , 梁炳亮 , 郑振环 , 欧阳晟 et al. M_3O_4(M=FeCoCrMnMg)高熵氧化物粉体的简易制备及超电容性能研究 . | 无机材料学报 , 2021 , 36 (04) , 425-430 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
It is known that residual stress is the main factor causing the final failure of thermal barrier coatings (TBCs). However, it is still unclear how the stress governs the cracking sequence. In this paper, atmospheric plasma-sprayed (APS) 8 wt% yttria-stabilized zirconia (YSZ) TBCs were subjected to isothermal heat treatment at 1050 degrees C for different time. The cracking evolution and the underlying mechanical mechanisms for cracking were investigated. Residual stress distribution through the YSZ thickness was evaluated using Raman spectroscopy. It is found that, after thermal exposure, the in-plane residual compression in the top-coat (TC) near the TC/thermally grown oxide (TGO) interface increases as the TGO thickens, inducing tensile stresses normal to the interface in the TC close to the undulation crests. A spherical analytical model is used to evaluate this tensile stress, and the result shows that it rises with the TGO growth. This normal tensile stress is the driving force for cracking of TBCs. Cracking parallel to the TGO/TC interface first initiates in the TC near the interface, and then coalesces with the cracks within the TGO and at the bond-coat (BC)/TGO interface, leading to the final delamination. Because TC has a relatively low fracture toughness, the delamination trajectory is primarily in the TC near the TGO/TC interface and along the pathway that contains inter-splat cracks, pores and weak splat boundaries. The results indicate that the large in-plane compressions play a significant role in the cracking evolution of TBCs because they induce normal tensile stress in the TC or at the TGO/BC interface. A cracking pattern dominated by the stress evolution is established in this work and it will provide an informed basis for improving the durability of APS-TBCs.
Keyword ：
Cracking evolution Cracking evolution Interfacial undulation Interfacial undulation Microstructure Microstructure Residual stress Residual stress Thermal barrier coatings Thermal barrier coatings
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Weng, Wei-Xiang , Zheng, Zhen-Huan , Li, Qiang . Cracking evolution of atmospheric plasma-sprayed YSZ thermal barrier coatings subjected to isothermal heat treatment [J]. | SURFACE & COATINGS TECHNOLOGY , 2020 , 402 . |
| MLA | Weng, Wei-Xiang et al. "Cracking evolution of atmospheric plasma-sprayed YSZ thermal barrier coatings subjected to isothermal heat treatment" . | SURFACE & COATINGS TECHNOLOGY 402 (2020) . |
| APA | Weng, Wei-Xiang , Zheng, Zhen-Huan , Li, Qiang . Cracking evolution of atmospheric plasma-sprayed YSZ thermal barrier coatings subjected to isothermal heat treatment . | SURFACE & COATINGS TECHNOLOGY , 2020 , 402 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
TiO2 nanocrystal (NC)-based photoreversible color switching (PCS) materials, which are capable of actively responding to external light, have significant potential for use in printable rewritable paper in the creation of sustainable technologies. Reductive TiO2 NCs with high hole-scavenging capabilities can be obtained by surface disorder or lattice distortion, but achieving an optimum balance between them is still a great challenge to enable simultaneous retention of the photoreduction performance and visible light catalytic ability of the TiO2 NCs. Here, we demonstrated solvent-controlled synthesis of interstitial Sn2+-doped TiO2 NCs and investigated the effects of solvent-induced surface disorder and doping-induced lattice distortion on the PCS properties of the TiO2 NCs. The midgap state produced by surface disorder combines with the energy level produced by the interstitial Sn2+ dopants in TiO2 NCs to become the main center for photogenerated electron transfer. Thus, efficient PCS was achieved, with the number of switching cycles greatly increased. The ethylene glycol-synthesized TiO2 NCs with a Sn2+-doping concentration of ca. 3% are the most favorable catalyst for achieving PCS performance. The process of PCS can be repeated 48 times without any rest. The results of this work suggest an approach to the design and preparation of PCS materials that exhibit excellent scalability and outstanding reversible performance by using colloidal NCs with optimized surface composition, lattice structure, and particle size as key-functional photocatalysts.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yang, Kewei , Chen, Xiaoyu , Zheng, Zhenhuan et al. Solvent-induced surface disorder and doping-induced lattice distortion in anatase TiO2 nanocrystals for enhanced photoreversible color switching [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2019 , 7 (8) : 3863-3873 . |
| MLA | Yang, Kewei et al. "Solvent-induced surface disorder and doping-induced lattice distortion in anatase TiO2 nanocrystals for enhanced photoreversible color switching" . | JOURNAL OF MATERIALS CHEMISTRY A 7 . 8 (2019) : 3863-3873 . |
| APA | Yang, Kewei , Chen, Xiaoyu , Zheng, Zhenhuan , Wan, Jiaqi , Feng, Miao , Yu, Yan . Solvent-induced surface disorder and doping-induced lattice distortion in anatase TiO2 nanocrystals for enhanced photoreversible color switching . | JOURNAL OF MATERIALS CHEMISTRY A , 2019 , 7 (8) , 3863-3873 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
采用等离子喷涂工艺在灰铸铁基体上制备了4种TiO2含量不同的 Al2 O3-TiO2涂层,运用X射线衍射技术,并结合Rietveld全谱拟合方法,对不同涂层中的物相进行定量分析；采用显微硬度测试和拉伸试验研究 TiO2含量对涂层力学性能的影响。结果表明：Al2 O3-3％TiO2涂层中存在大量的γ-Al2 O3相、α-Al2 O3相以及少量的非晶相；在Al2 O3-13％TiO2涂层中,非晶相含量出现最大值,并有Al2 TiO5相形成；随着TiO2含量进一步增加,非晶相含量降低,Al2 TiO5相含量增加,在Al2 O3-40％TiO2涂层中只存在α-Al2 O3和Al2 TiO5相；随着TiO2含量增加,涂层的显微硬度降低,但涂层的结合强度升高,这与涂层中Al2 TiO5相的含量有关。
Keyword ：
Al2 O3-TiO2 涂层 Al2 O3-TiO2 涂层 显微硬度 显微硬度 等离子喷涂 等离子喷涂 结合强度 结合强度
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 翁鹏翔 , 郭平 , 郑振环 et al. TiO2含量对等离子喷涂Al2 O3-TiO2涂层物相组成和力学性能的影响 [J]. | 机械工程材料 , 2017 , 41 (1) : 13-19 . |
| MLA | 翁鹏翔 et al. "TiO2含量对等离子喷涂Al2 O3-TiO2涂层物相组成和力学性能的影响" . | 机械工程材料 41 . 1 (2017) : 13-19 . |
| APA | 翁鹏翔 , 郭平 , 郑振环 , 叶辉 , 李强 . TiO2含量对等离子喷涂Al2 O3-TiO2涂层物相组成和力学性能的影响 . | 机械工程材料 , 2017 , 41 (1) , 13-19 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
采用大气等离子喷涂技术制备Cr_3C_2-NiCr复合涂层,并对制备的Cr_3C_2-Ni Cr涂层试样进行800℃×100 h氧化和熔盐(Na_2SO_4+25wt%NaCl)热腐蚀试验。利用X射线衍射仪(XRD)和带能谱的扫描电镜(SEM/EDX)分析氧化、腐蚀涂层表面和截面的成分及结构变化,探讨其高温氧化、腐蚀机理。结果表明:等离子喷涂Cr_3C_2-Ni Cr涂层具有层状组织结构,喷涂过程中无明显相分解或氧化。高温氧化后的Cr_3C_2-NiCr涂层表面及层片界面形成了连续、致密的Cr_2O_3保护膜,涂层表现出优异的抗高温氧化性能。在热腐蚀过程中,腐蚀盐破坏了涂层表面及层片界面形成的...
Keyword ：
Cr_3C_2-NiCr涂层 Cr_3C_2-NiCr涂层 热腐蚀 热腐蚀 等离子喷涂 等离子喷涂 高温氧化 高温氧化
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张姗 , 李强 , 郑振环 . Cr_3C_2-NiCr涂层的高温抗氧化和耐热腐蚀性能 [J]. | 金属热处理 , 2016 , 41 (09) : 32-37 . |
| MLA | 张姗 et al. "Cr_3C_2-NiCr涂层的高温抗氧化和耐热腐蚀性能" . | 金属热处理 41 . 09 (2016) : 32-37 . |
| APA | 张姗 , 李强 , 郑振环 . Cr_3C_2-NiCr涂层的高温抗氧化和耐热腐蚀性能 . | 金属热处理 , 2016 , 41 (09) , 32-37 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
等离子喷涂层片是形成涂层的基本单元,研究层片的形貌及显微结构对涂层的工艺优化和质量控制都具有重要意义。本研究在1Cr13不锈钢基底上采集了等离子喷涂的Ni层片,采用扫描电子显微镜(SEM)和电子背散射衍射(EBSD)研究了基底温度对层片形貌、晶粒大小和晶体取向分布的影响,并由晶粒大小计算了层片和基底间的接触热阻。研究结果表明:300 K基底上采集的层片为飞溅状,层片晶粒尺寸和接触热阻沿着径向方向变化不大,平均值分别为2.75μm和2.98×10~(-6)m~2·K·W~(-1)。在573 K基底上采集的层片近似圆盘状,层片晶粒尺寸沿着径向近似线性增大,中心和边缘处分别为0.92和1.98μm;...
Keyword ：
基底温度 基底温度 层片 层片 显微组织 显微组织 等离子喷涂 等离子喷涂 织构 织构
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 郑振环 , 李强 . 等离子喷涂镍层片组织与织构的EBSD研究 [J]. | 稀有金属 , 2016 , 40 (08) : 751-755 . |
| MLA | 郑振环 et al. "等离子喷涂镍层片组织与织构的EBSD研究" . | 稀有金属 40 . 08 (2016) : 751-755 . |
| APA | 郑振环 , 李强 . 等离子喷涂镍层片组织与织构的EBSD研究 . | 稀有金属 , 2016 , 40 (08) , 751-755 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
本发明提出一种X射线多晶衍射仪用多试样自动换样装置，包括样品板、样品传送机构、样品更换机构、光电传感器模块、光敏电阻传感器模块、控制电路模块以及电源模块，光电传感器模块设于样品传送机构处对样品板输送进行检测，光敏电阻传感器模块设于衍射仪处对衍射仪快门灯亮度进行检测；待衍射仪测试的样品板以传送带取用位为起点放置形成样品板检测队列，样品更换机构位于取用位和衍射仪样品台之间，衍射仪样品台处插有样品板；样品更换机构包括两个夹持件、动作驱动件和条形转台，当条形转台旋转使两端分别与取用位和衍射仪样品台相邻时，两夹持件移动至条形转台的两端对样品板进行操作；本发明能以较低成本实现X射线多晶衍射仪的自动换样。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 郑振环 , 李强 . 一种X射线多晶衍射仪用多试样自动换样装置 : CN201610840638.5[P]. | 2016/9/22 . |
| MLA | 郑振环 et al. "一种X射线多晶衍射仪用多试样自动换样装置" : CN201610840638.5. | 2016/9/22 . |
| APA | 郑振环 , 李强 . 一种X射线多晶衍射仪用多试样自动换样装置 : CN201610840638.5. | 2016/9/22 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
本发明一种X射线多晶衍射仪用自动换样装置，包括样品板、样品台、磁铁片、霍尔传感器模块、转动轴、步进电机、电机驱动模块、光敏电阻传感器模块、单片机和导线，样品板在样品台上呈圆周形或扇形均匀分布，相邻样品板与样品台圆心连线的夹角角度为A；样品台以转动轴与步进电机连接；光敏电阻传感器模块对衍射仪快门灯进行检测，光敏电阻传感器模块与单片机相连，当衍射仪快门灯亮度由亮转灭时，单片机控制步进电机把样品台按预设方向旋转A角度；磁铁片固定于样品台边缘处，霍尔传感器模块与样品台边缘相邻，当样品台旋转至霍尔传感器被磁铁片触发时，触发单片机复位并停止对样品台的旋转；本发明能以较低成本实现X射线多晶衍射仪的自动换样。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 郑振环 , 李强 . 一种X射线多晶衍射仪用自动换样装置 : CN201610841586.3[P]. | 2016/9/22 . |
| MLA | 郑振环 et al. "一种X射线多晶衍射仪用自动换样装置" : CN201610841586.3. | 2016/9/22 . |
| APA | 郑振环 , 李强 . 一种X射线多晶衍射仪用自动换样装置 : CN201610841586.3. | 2016/9/22 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
