Novel Metastable Hexagonal MoO3 Nanobelts: Synthesis, Photochromic, and Electrochromic Properties
Novel Metastable Hexagonal MoO3 Nanobelts: Synthesis, Photochromic, and Electrochromic Properties
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DOI：
10.1021/cm9023887
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发表时间：
2009-11
影响因子：
8.6
通讯作者：
Lei Zheng;Yang Xu;D. Jin;Yinjuan Xie
中科院分区：
文献类型：
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作者：
Lei Zheng;Yang Xu;D. Jin;Yinjuan Xie
在这项工作中，我们报告的晶体结构，形貌和光学性能的新型亚稳六方相MoO 3（h-MoO 3）纳米带制备一个简单的水热路线从过氧钼酸盐溶液与硝酸钠作为矿化剂的存在下。在反应过程中，NaNO 3已被提议影响水溶性过氧钼酸盐前体的脱氧、缩合和进一步脱水，以连接具有顶点共享和边缘共享排列的[MoO 6]八面体，从而确定亚稳相的产生。本文比较研究了六方h-MoO 3纳米带和正交α-MoO 3纳米带的光致变色和电致变色行为。对两种MoO 3纳米带悬浮液的光致变色性能研究表明，在紫外光照射下，h-MoO 3的光致变色效率优于α-MoO 3，这是由于h-MoO 3在紫外光照射下具有明显的变色现象。
In this work, we report the crystalline structure, morphology, and optical properties of novel metastable hexagonal phase MoO3 (h-MoO3) nanobelts prepared by a simple hydrothermal route from peroxomolybdate solution with the presence of sodium nitrate as a mineralizer. During the reaction process, NaNO3 has been proposed to influence the deoxidation, condensation, and further dehydration of the water-soluble peroxomolybdate precursor for connecting the [MoO6] octahedra with vertex sharing and edge sharing arrangements on determining the generation of metastable phase. The present work comparatively investigates the photochromic and electrochromic behaviors of the resultant hexagonal h-MoO3 nanobelts and the common thermodynamically stable orthorhombic α-MoO3 nanobelts. The performances concerning photochromism on two types of MoO3 nanobelt suspensions show that the photochemical efficiency of h-MoO3 is more excellent than that of α-MoO3 under UV light irradiation based on a remarkable coloration phenomeno...