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7篇 您的检索式:作者名="Youyu Fan"
    题名 作者 年代 出处 被引量
1Devitrification of TeO_2-doped Fluoroaluminate Glass显示文摘玻璃 systemAlF_3-MgF_2-CaF_2-SrF_2-BaF_2-YF_3-TeO_2 (AMCSBY-TeO_2 ) 的结晶化行为被非等温的方法用微分热分析学习。活化能 E 和 Avrami 代表 n 被非等温的方法决定。E 的价值与增加 TeO_2 变化并且当 n 与当眼镜被再热时, Ba_2Te_3O_8, MgTe_2O_5 和 SrTeO_3 分阶段执行,这形成的衍射显示出的 TeO_2.X 光线的增加从 3.65 ~ 1.78 减少时,在 10 摩尔部分 TeO_2 到达最小,这被发现。TeO_2 的增加改变结晶化机制并且改进 fluoroaluminate 玻璃的稳定性。Bin TANG Xinqiang YUAN Tianfeng XUE Jiacheng LI Youyu FAN Hefang HU 2006Journal of Materials Science & Technology2006,22,4:2
2Effect of tellurium dioxide on fluoroalunimante glasses显示文摘FAN Youyu YUAN Xinqiang HU Hefang J0,,:1
3显示文摘Yuan Xinqiang Fan Youyu Cao Guoxi 2005Infrared Laser Eng2005,34,6:1
4Effect of tellurium dioxide on fluoroaluminate glasses显示文摘FAN Youyu YUAN Xinqiang FENG Jitian J Inorg Mater(in Chinese)0,,:1
5An ultrafast carrier dynamics system from oxygen vacancies modified SnO_(2)QDs and Zn_(2)SnO_(4)heterojunction for deeply photocatalytic oxidation of NO显示文摘Deeply photocatalytic oxidation of NO-to-NO_(3)holds great promise for alleviating NO_(x) pollution.The major challenge of NO photo-oxidation is the highly in-situ generated NO_(2) concentration,and the formation of unstable nitrate species causes desorption to release NO_(2).In this study,SnO_(2) quantum dots and oxygen vacancies co-modified Zn_(2)SnO_(4)(ZSO-SnO_(2)-OVs)were prepared by a one-step hydrothermal procedure,the NO photo-oxidation was investigated by a combination of solid experimental and theoretical support.Impressively,spectroscopic measurements indicate that fast carrier dynamics can be achieved due to the electron transfer efficiency of ZSO-SnO_(2)-OVs reaching 99.99%,far outperforming the counterpart and previously reported photocatalysts.During NO oxidation,molecular NO/O_(2) and H2O are efficiently adsorbed/activated around OVs and SnO_(2) QDs,respectively.In-situ infrared measurements and calculated electron localized function disclose two main findings:(1)richly electrons enable NO promptly form NOinstead of toxic NO_(2) or NO^(+);(2)the generation of stable and undecomposed bidentate NO_(3)rather than bridging or monodentate one benefits the deep oxidation of NO via shifting reaction sites from O terminals for original ZSO to Sn ones for ZSO-SnO_(2)-OVs.The synergistic action of SnO_(2) QDs and OVs positively contributes to the NO oxidation performance enhancement(60.6%,0.1 g of sample)and high selectivity of NO to NO_(3)(99.2%).Results from this study advance the mechanistic understanding of NO photooxidation and its selectivity to NO_(3)over photocatalysts.Yuhan Li Min Zhang Bangfu Chen Ping Ouyang Youyu Duan Kangle Lv Fan Dong 2023Journal of Materials Science & Technology2023,,34:0
6Barium Gallogermanate Glass Ceramics for Infrared Applications显示文摘The germanate glass ceramics is a potential candidate material for infrared(IR) dome and window applications.The crystallization mechanism of 20BaO-10Ga2O3-70GeO2 glass was investigated by differential thermal analysis(DTA),scanning electron microscopy(SEM) and X-ray diffraction(XRD).Two different types of phase evolution were found in the early stage of crystallization:(1) the further growth of the microcrystal formed during the slow cooling of glass melt and(2) the glass-in-glass phase separation.The controlled crystallization was obtained by two-step heat treatment.The middle infrared(MIR)-transparent glass ceramics were obtained,with expected thermal and mechanical improvements.Bin Tang Yi Wang Youyu Fan Long Zhang 2010Journal of Materials Science & Technology2010,26,6:0
7Crystallinity-defect matching relationship of g-C_(3)N_(4): Experimental and theoretical perspectives显示文摘Good crystallinity can reduce the charge recombination centers caused by defects,whilst structures with strong polycondensation have high charge mobility,leading to more charge transfer to the material surface for reaction.Much effort has been put into the preparation of a highly efficient g-C_(3)N_(4) with defects to improve its application potential under the premise in high crystallinity.Hence,this review paper emphasizes the importance to balance the defect and crystallinity of g-C_(3)N_(4).In addition,detailed discussion on the relationship between defects and activity of g-C_(3)N_(4) was carried out based on its applications in environmental purification(e.g.,VOCs oxidation,NOx oxidation,H_(2)O_(2) evolution,sterili-zation,pesticide oxidation)and energy conversion(H_(2) evolution,N2fixation and CO_(2) reduction).Lastly,the challenge in developing more efficient defective g-C_(3)N_(4) photocatalytic materials is summarized.Yuhan Li Ziteng Ren Zhengjiang He Ping Ouyang Youyu Duan Wendong Zhang Kangle Lv Fan Dong 2024Green Energy & Environment2024,9,4:0
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