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通过水分散性单壁碳纳米管敏化剂中激子的解离实现光诱导水析氢

Photo-induced H evolution from water via the dissociation of excitons in water-dispersible single-walled carbon nanotube sensitizers.

作者信息

Ishimoto Kango, Tajima Tomoyuki, Miyake Hideaki, Yamagami Masahiro, Kurashige Wataru, Negishi Yuichi, Takaguchi Yutaka

机构信息

Graduate School of Environmental and Life Science, Okayama University, 3-1-1 Tsushima-Naka, Kita-ku, Okayama 700-8530, Japan.

出版信息

Chem Commun (Camb). 2018 Jan 4;54(4):393-396. doi: 10.1039/c7cc07194a.

DOI:10.1039/c7cc07194a
PMID:29250643
Abstract

To observe a clear-cut example of the formation of mobile carriers from excitons on semiconducting single-walled carbon nanotubes (s-SWCNTs) surrounded by a medium with a high dielectric constant, water-dispersible s-SWCNT nanocomposites were fabricated by physical modifications using poly(amidoamine) dendrimers that contain an aliphatic core. The evolution of H from water using these s-SWCNT/dendrimer nanocomposites as photosensitizers under irradiation with visible light demonstrated a photo-induced electron transfer from the s-SWCNTs to the co-catalysts.

摘要

为了观察在被高介电常数介质包围的半导体单壁碳纳米管(s-SWCNT)上由激子形成移动载流子的一个清晰例子,通过使用含有脂肪族核的聚(酰胺胺)树枝状大分子进行物理改性,制备了水分散性s-SWCNT纳米复合材料。在可见光照射下,使用这些s-SWCNT/树枝状大分子纳米复合材料作为光敏剂时,水中氢的演变表明了从s-SWCNT到助催化剂的光诱导电子转移。

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