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Journal of Materials Science & Technology 2010年第11期26卷 981-985页

作者： Suhue Fan quande che Fengqing Zhang Ran Yu Wei Hu College of Material Science and Engineering Shandong Jianzhu University Jinan 250101 China

Predominantly （100）-oriented Ca0.4Sr0.6Bi4Ti4O15 （C0.4S0.6BTi） thin films were prepared on Pt （111）/Ti/SiO2/Si substrates by a sol-gel method at annealing temperatures ranging from 650 to 850 ℃.The growth mode of the predominantly （100）-oriented C0.4S0.6 BTi thin films fabricated by the sequential layer annealing was discussed based on the structure evolution with the annealing *** remnant polarization and coercive field of the C0.4S0.6 BTi film annealed at 800 ℃ are 16.1 μC/cm 2 and 85 kV/cm,*** evident fatigue can be observed after 10 9 switching cycles.

关键词： Ca0.4Sr0.6Bi4Ti4O15 Ferroelectric film Orientation

Red color Sr_(2)NaMg_(2)V_(3)O_(12):Eu^(3+)phosphor with high thermal stability for w-LEDs

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Journal of Rare Earths 2023年第11期41卷 1689-1695,I0002页

作者： Jinkai Li Bin Liu Guiyuan Liu quande che Yizhong Lu Zongming Liu School of Materials Science and Engineering University of JinanJinan250022China Infovision Optoelectronics(Kunshan)Co. Ltd.Kunshan215333China

Sr_(2)NaMg_(2)V_(3)O_(12):xEu phosphors with uniform particle size/morphology and good dispersion can be synthesized via solid state *** the optimum excitation wavelength of ~340 nm,the Sr_(2)NaMg_(2)V_(3)O_(12):xEu phosphor displays the broad emission band at ~500 nm(blue-green emission,^(3)T_(1,2)→^(1)A_(1) transition of[VO_(4)]^(3-))and sharp emission peak at~610 nm(red emission,^(5)D_(0)→^(7)F_(2) transition of Eu^(3+)),*** the Eu^(3+)content increasing,the emission intensity of[VO_(4)]^(3-)decreases gradually while the emission intensity of Eu^(3+)increases,which is ascribed to the energy transfer from[VO_(4)]^(3-)to Eu^(3+)*** decay time of[VO_(4)]^(3-)(-500 nm)increases gradually with the Eu^(3+)content *** energy transfer efficiency and mechanism of[VO_(4)]^(3-)→Eu^(3+)ions were analyzed,*** emission color of Sr_(2)NaMg_(2)V_(3)O_(12):xEu phosphor was regulated from green to red via altering the Eu^(3+)ions *** is delightful for us that the white color emission can be just achieved when the Eu^(3+)content is 5 at%(x=0.05),and the w-LED can be *** studying the luminescence temperature dependence and activation energy of Sr_(2)NaMg_(2)V_3O_(12):xEu phosphor,it is shown that the phosphor has good thermal *** Sr_(2)NaMg_(2)V_3O_(12):xEu powder is expected to be a new type of phosphor widely used in light and display areas.

关键词： Phosphor W-LEDs Thermal stability Energy transfer Rare earths

Depositing Ag3PO4 on WO3 hollow microspheres at room temperature for rapid photocatalytic degradation of Rhodamine B

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Progress in Natural Science:Materials International 2022年第3期32卷 282-288页

作者： Yaru Shang Yongping Cui Ruixia Shi quande che Aiyu Zhang Ping Yang School of Materials Science and Engineering University of Jinan

A series of WO3hollow microspheres decorated with Ag3PO4nanoparticles（APW） composites with Ag3PO4:WO3mass percentage of 20%（20APW）, 30%（30APW）, 40%（40APW） and 50%（APW） were successfully synthesized,characterized and tested for the degradation of the Rhodamine B（Rh B） under 300 W xenon lamp radiation. The photocatalytic results showed that the photocatalytic degradation performances of WO3hollow microspheres decorated with Ag3PO4nanoparticles on Rh B were significantly enhanced, which were much higher than that of individual Ag3PO4and WO3. Especially for 40APW, Rh B can be completely degraded within 10 min. The order of degradation efficiency is 20APWchemical impedance tests showed that the formation of Ag3PO4/WO3composite structure broadened the light absorption range, reduced the recombination rate of photogenerated electrons and holes, and decreased the resistance to charge transfer, which are beneficial to the improvement of photocatalytic performance. The capture agent experiments were carried out with 40APW, which specified the primary role of h+and ·O2-in the degradation of Rh B. The formation of heterojunction between Ag3PO4and WO3that effectively separates photogenerated electrons and holes are contributed to the enhancement of photocatalytic properties of APW composites.

关键词： WO 3 hollow microspheres Ag 3 PO 4 Heterojunction Photocatalytic Mechanism

In-situ transformation of Co(OH)_(2) into NH_(4)CoPO_(4)·H_(2)O on Co foil: 3D self-supported electrocatalyst with asymmetric local atomic and electronic structure for enhanced oxygen evolution reaction

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Journal of Energy chemistry 2020年第12期29卷 167-174页

作者： quande che Xiaobin Xie Qian Ma Junpeng Wang Yuanna Zhu Ruixia Shi Ping Yang School of Materials Science and Engineering University of JinanJinan 250022ShandongChina School of Materials Science and Engineering.Wuhan University of Technology Wuhan 430070HubeiChina

Development of high efficient and stable water oxidation catalysts is essential for the realization of industrial water-splitting systems. Herein, a novel approach involving an in-situ transformation of Co(OH)2 nanosheets into NH4 CoPO4·H2 O nanoplates on Co foil is reported. As a 3 D self-supported oxygen revolution reaction(OER) electrocatalyst, the as-prepared NH4 CoPO4·H2 O/Co exhibits remarkable catalytic activity and exceptional stability. Specifically, it can deliver a current density of 10 m A cm^(-2) at a quite low overpotential of 254 m V with a small Tafel slope of 64.4 m V dec-1 in alkaline electrolyte. Through experimental study and theoretical analysis, the excellent OER performance can be attributed to enriched exposed active sites, favorable electron/proton transfer and mass transport, and its unique asymmetric local atomic and electronic structure. Thus, this present research not only provides a practicable in-situ transformation strategy to design 3 D self-supported electrocatalysts, but also enlightens a new way of developing transition-metal phosphates for efficient and stable water oxidation at atomic level.

关键词： Electrocatalysis Oxygen evolution reaction Transition-metal phosphate NH_(4)CoPO_(4)·H_(2)O

退火温度和匀胶速率对SrBi_(3.88)Nd_(0.12)Ti_4O_(15)薄膜铁电性能的影响

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稀有金属材料与工程 2009年第A2期38卷 260-262页

作者：张丰庆范素华马建平车全德于冉山东建筑大学山东济南250101

用溶胶-凝胶法在Pt/Ti/SiO2/Si基片上制备了SrBi3.88Nd0.12Ti4O15铁电薄膜材料,研究了退火温度和匀胶速率对铁电薄膜材料结构、铁电性能的影响。退火温度为750℃、匀胶速率为3000r/min薄膜样品为纯的铋层状钙钛矿结构且没有其它杂相出... 详细信息

用溶胶-凝胶法在Pt/Ti/SiO2/Si基片上制备了SrBi3.88Nd0.12Ti4O15铁电薄膜材料,研究了退火温度和匀胶速率对铁电薄膜材料结构、铁电性能的影响。退火温度为750℃、匀胶速率为3000r/min薄膜样品为纯的铋层状钙钛矿结构且没有其它杂相出现,a轴取向的晶粒较多,铁电性能较好,剩余极化强度和矫顽场分别为2Pr=26.7μC/cm2、2Ec=80kV/cm。

关键词：退火温度匀胶速率铁电性能

Sm掺杂对Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15)铁电薄膜性能的影响

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稀有金属材料与工程 2009年第A2期38卷 256-259页

作者：车全德范素华张丰庆马建平于冉田清波山东建筑大学山东济南250101

利用溶胶凝胶工艺在Pt/TiO2/SiO2/Si衬底上制备了Ca0.4Sr0.6SmxBi4-xTi4O15铁电薄膜。研究了不同钐掺量对薄膜的显微结构、晶粒取向及铁电性能的影响。结果表明:钐掺杂对钙锶铋钛铁电薄膜既有抑制氧空位所导致的畴钉扎作用,也有抑制晶... 详细信息

利用溶胶凝胶工艺在Pt/TiO2/SiO2/Si衬底上制备了Ca0.4Sr0.6SmxBi4-xTi4O15铁电薄膜。研究了不同钐掺量对薄膜的显微结构、晶粒取向及铁电性能的影响。结果表明:钐掺杂对钙锶铋钛铁电薄膜既有抑制氧空位所导致的畴钉扎作用,也有抑制晶粒生长发育的作用。当钐掺量x=0.05时薄膜样品晶粒发育较良好,沿a轴择优取向,I(200)/I(119)=0.869;样品铁电性能优良,剩余极化强度Pr=10.2μC/cm2,矫顽场强度Ec=120kV/cm。

关键词：铁电薄膜钐掺杂取向

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吉林省榆树市中药资源调查研究

吉林中医药 2015年第6期35卷 611-613,619页

作者：李晓华李宜平胡全德刘知源王绍鹏车宏伟长春中医药大学药学院长春130117 吉林农业大学长春130117

通过对榆树市药用植物的调查,并走访调查中药资源相关传统知识,研究当地野生中药资源,为榆树市药用资源开发利用提供重要依据。采用样地、样方定点调查,并结合野外踏查方式统计调查获得相关数据。此次资源普查共统计调查野生植物53科231... 详细信息

通过对榆树市药用植物的调查,并走访调查中药资源相关传统知识,研究当地野生中药资源,为榆树市药用资源开发利用提供重要依据。采用样地、样方定点调查,并结合野外踏查方式统计调查获得相关数据。此次资源普查共统计调查野生植物53科231种,真菌类5科7种,采集药材112类,不仅明确了榆树市资源较丰富的药用植物和珍贵濒危物种,同时为今后榆树市域内中药资源开发、利用、保护以及可持续发展提供重要参考价值。

关键词：短裙竹荪资源调查传统知识榆树市