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Tuning defects in oxides at room temperature by lithium reduction.

Abstract：

:Defects can greatly influence the properties of oxide materials; however, facile defect engineering of oxides at room temperature remains challenging. The generation of defects in oxides is difficult to control by conventional chemical reduction methods that usually require high temperatures and are time consuming. Here, we develop a facile room-temperature lithium reduction strategy to implant defects into a series of oxide nanoparticles including titanium dioxide (TiO2), zinc oxide (ZnO), tin dioxide (SnO2), and cerium dioxide (CeO2). Our lithium reduction strategy shows advantages including all-room-temperature processing, controllability, time efficiency, versatility and scalability. As a potential application, the photocatalytic hydrogen evolution performance of defective TiO2 is examined. The hydrogen evolution rate increases up to 41.8 mmol g-1 h-1 under one solar light irradiation, which is ~3 times higher than that of the pristine nanoparticles. The strategy of tuning defect oxides used in this work may be beneficial for many other related applications.

journal_name

Nat Commun

journal_title

Nature communications

authors

Ou G,Xu Y,Wen B,Lin R,Ge B,Tang Y,Liang Y,Yang C,Huang K,Zu D,Yu R,Chen W,Li J,Wu H,Liu LM,Li Y

doi

10.1038/s41467-018-03765-0

subject

Has Abstract

pub_date

2018-04-03 00:00:00

pages

1302

issue

1

issn

2041-1723

pii

10.1038/s41467-018-03765-0

journal_volume

9

pub_type

杂志文章

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