Synthesis of Niobium Oxide Nanoparticles with Plate Morphology Utilizing Solvothermal Reaction and Their Performances for Selective
Synthesis of Niobium Oxide Nanoparticles with Plate Morphology Utilizing Solvothermal Reaction and Their Performances for Selective
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溶剂热反应合成板状氧化铌纳米粒子及其选择性性能
DOI：
10.1016/j.apcatb.2015.10.003
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Tsunehiro Tanaka
中科院分区：
文献类型：
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作者：
Kazuki Tamai;Saburo Hosokawa;Kentaro Teramura,Tetsuya Shishido;Tsunehiro Tanaka
由乙醇铌在乙二醇中进行溶剂热反应得到的嵌入乙二醇的纳米铌化合物可以很容易地合成由宽~35 nm、长~200 nm的纳米板颗粒组成的Nb2O5。由此获得的Nb2O5纳米颗粒比Nb2O5·nH2O合成的Nb2O5具有更高的表面积和更高的苯甲醇选择性光氧化催化活性。我们得出结论，Nb2O5 的结晶度和表面积与底物的吸附有关，催化活性与纳米晶 Nb2O5 上吸附的底物量明显相关。
Nb2O5composed of nano-plate particles with the width of ∼35 nm and the length of ∼200 nm can be readily synthesized from the nanocrystalline niobium compound intercalating ethylene glycol obtained by the solvothermal reaction of niobium ethoxide in ethylene glycol. Thus-obtained Nb2O5nanoparticles have higher surface area and also higher catalytic activities of selective photooxidation of benzyl alcohol than Nb2O5synthesized from Nb2O5·nH2O. We conclude that the crystallinity and surface area of Nb2O5are responsible to adsorption of the substrate, and the catalytic activities obviously correlate with the amount of substrate adsorbed on nanocrystalline Nb2O5.