纳米片
锐钛矿
材料科学
光催化
化学工程
制氢
纳米技术
溶剂
乙醇
降级(电信)
形态学(生物学)
氢
催化作用
化学
有机化学
工程类
生物
电信
遗传学
计算机科学
作者
Ming Li,Ying Chen,Wei Li,Xiang Li,He Tian,Xiao Wei,Zhaohui Ren,Gaorong Han
出处
期刊:Small
[Wiley]
日期:2017-02-20
卷期号:13 (16)
被引量:71
标识
DOI:10.1002/smll.201604115
摘要
An ethanol solvothermal route has been developed to prepare ultrathin anatase TiO 2 nanosheets with dominant {001} facets (≈97%), a thickness of ≈2.5 nm, and a side length of ≈200 nm. The introduction of ethanol solvent significantly enhances the content of surface chemisorbed F − on the TiO 2 nanosheet, which has a higher stability and further lowers the surface energy of {001} facets, giving rise to the large percentage of active {001} facets. Adopting well‐defined morphology, such nanosheets loaded with 1 wt% Pt exhibit an H 2 evolution rate as high as 17.86 mmol h −1 g −1 , and the corresponding apparent quantum efficiency has been determined to be 34.2%.
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