氧化钨纳米结构的合成与表征

IF 0.8 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

无机化学学报 Pub Date : 2008-01-01 DOI:10.5353/th_b4150877

Rong Hu, 胡蓉

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引用次数: 0

摘要

以六氯化钨(WCl6)为前驱体，采用溶剂热法制备了一、二维氧化钨纳米结构。研究了溶剂和WCl6浓度对合成的氧化钨纳米结构的物相和形貌的影响，并对其no2传感性能进行了评价。采用x射线衍射、场发射扫描电镜、透射电镜、x射线光电子能谱对合成产物进行了表征，结果表明:通过调节溶剂和WCl6的浓度，可以形成单斜结构的W18O49纳米棒、W18O49纳米线和WO3纳米片。二氧化氮传感性能测试表明，合成的氧化钨对不同浓度的二氧化氮均有可逆响应。与WO3纳米片或W18O49纳米棒相比，W18O49纳米线对NO2气体的响应要高得多。

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Synthesis and characterization of tungsten oxide nanostructures

One-and two-dimensional tungsten oxide nanostructures were synthesized by solvothermal method using tungsten hexachloride(WCl6) as the precursor.The effects of the solvent and the concentration of WCl6 on the phase and the morphology of the as-synthesized tungsten oxide nanostructures were investigated and the NO2-sensing properties were evaluated.X-ray diffraction,field emission scanning electron microscope,transmission electron microscope,X-ray photoelectron spectroscopy were employed to characterize the as-synthesized products and the results indicate that the W18O49 nanorod,W18O49 nanowire and WO3 nanosheet with monoclinic structure can be formed by adjusting the solvent and WCl6 concentration.The NO2-sensing properties measurements show that the synthesized tungsten oxides have reversible response to NO2 at different concentrations.In comparison with WO3 nanosheet or W18O49 nanorod,the W18O49 nanowire exhibits much higher response to NO2 gas.

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来源期刊

无机化学学报化学-无机化学与核化学

CiteScore

1.40

自引率

42.90%

发文量

8709

审稿时长

2.2 months

期刊介绍： “Chinese Journal of Inorganic Chemistry” publishes fundamental studies in all phases of inorganic chemistry, including solid-state chemistry, coordination chemistry, inorganic materials chemistry, bioinorganic chemistry, organometallic chemistry, theoretical inorganic chemistry, supermolecule chemistry, applied inorganic chemistry and related field of catalysis. Emphasis is on the synthesis, thermodynamics, kinetics, spectroscopy, structure and bonding properties of new and known compounds. In addition to full-length research articles, “Chinese Journal of Inorganic Chemistry” also publishes notes, letters, and reviews. “Chinese Journal of Inorganic Chemistry” accepts manuscript written in simplified Chinese or English.