Selective fabrication of tungsten nano-oxides via submerged photosynthesis with hydrogen peroxide for chromic device application
Selective fabrication of tungsten nano-oxides via submerged photosynthesis with hydrogen peroxide for chromic device application
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DOI：
10.1016/j.matlet.2021.130344
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发表时间：
2021-11
影响因子：
3
通讯作者：
Souta Fujii;Shun-ichi Murakami;Lihua Zhang;Seiichi Watanabe
中科院分区：
文献类型：
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作者：
Souta Fujii;Shun-ichi Murakami;Lihua Zhang;Seiichi Watanabe
钨纳米氧化物WO_3和H_2WO_4作为光催化和显色材料的潜在候选者已经被研究。目前，纳米WO_3和H_2WO_4的制备一般采用水热合成法，需要高温环境和调节pH值。本文报道了用过氧化氢溶解钨的溶液在紫外光照射下，通过光合作用制备纳米WO_3。同样，我们通过改变过氧化氢溶液的浓度成功地制备了纳米H_2WO_4。在此基础上，将纳米WO_3包覆在ITO衬底上，制备了电致变色器件，并对其变色性能进行了验证。
Tungsten nano-oxides of WO3and H2WO4have been studied as promising candidates for photocatalytic and chromic materials. To date, WO3and H2WO4nanoparticles are generally prepared by hydrothermal synthesis, which requires high temperature environment and pH adjustment. In this paper, we report on fabricating WO3nanoparticles via photosynthesis by UV irradiation of the solution made from dissolving tungsten in hydrogen peroxide. Similarly, we have succeeded in fabricating H2WO4nanoparticles by changing the concentration of hydrogen peroxide solution. Furthermore, an electrochromic device was fabricated by coating the WO3nanoparticles on an ITO substrate, and the chromic properties are then confirmed.