Colloidal Synthesis of Plasmonic Ultrathin Transition-Metal Oxide Nanosheets

被引：3

作者：

Qi, Shaopeng ^{[1
]}

Liu, Guoning ^{[1
,3
]}

Zhang, Ke ^{[1
]}

Chen, Jinxi ^{[1
]}

Zhao, Yixin ^{[2
]}

Lou, Yongbing ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

[3] Huaibei Normal Univ, Sch Chem & Mat Sci, Huaibei 235000, Anhui, Peoples R China

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2022年 / 10卷 / 29期

关键词：

ultrathin two-dimensional nanosheets; colloidal method; plasmonic effect; topotactic phase transformation; NONAQUEOUS SYNTHESIS; HYDROGEN GENERATION; AMMONIA BORANE; RESONANCES; TRANSFORMATION; EXFOLIATION; NANOCRYSTALS; FABRICATION; WO3;

D O I：

10.1021/acssuschemeng.2c02375

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Recently, two-dimensional plasmonic ultrathin transition-metal oxide (TMO) nanosheets have attracted wide attention due to their unique properties. However, the colloidal preparation of these nanosheets with a strong plasmonic absorption and ultrathin nature at the same time still remains to be a great challenge. Herein, a general one-step colloidal method was used to fabricate ultrathin MO3-x (M = Mo or W) nanosheets by using H2MoO4 or H2WO4 as the raw material with the assistance of oleic acid (OA) and oleylamine (OAm). The obtained MO3-x nanosheets were derived from the topotactic phase transformation by the mediated effect of OA and OAm. These MO3-x nanosheets not only displayed intense plasmonic absorptions but also exhibited high specific surface areas (13.97 and 11.82 m(2) g(-1) for the as-prepared MoO3-x and MO3-x nanosheets, respectively). In addition, these MO3-x nanosheets also showed superior photocatalytic H-2 evolution performance through the dehydrogenation of ammonia borane under visible light irradiation. This work was expected to offer a new way for directly synthesizing ultrathin TMO nanosheets.

引用

页码：9565 / 9572

页数：8

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