期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 29, 页码 9316-9324出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b05396
关键词
-
资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [26620194, 26220911]
- MEXT program, Japan
- Japan Society for the Promotion of Science (JSPS)
- National Basic Research program of China (973 program) [2013CB632401]
- National Science Foundation of China [21333006]
- Taishan Scholar Program of Shandong
- Grants-in-Aid for Scientific Research [16K14478] Funding Source: KAKEN
Heavily doped semiconductors have recently emerged as a remarkable class of plasmonic alternative to conventional noble metals; however, controlled manipulation of their surface plasmon bands toward short wavelengths, especially in the visible light spectrum, still remains a challenge. Here we demonstrate that hydrogen doped given MoO3 and WO3 via a facile H-spillover approach, namely, hydrogen bronzes, exhibit strong localized surface plasmon resonances in the visible light region. Through variation of their stoichiometric compositions, tunable plasmon resonances could be observed in a wide range, which hinge upon the reduction temperatures, metal species, the nature and the size of metal oxide supports in the synthetic H-2 reduction process as well as oxidation treatment in the postsynthetic process. Density functional theory calculations unravel that the intercalation of hydrogen atoms into the given host structures yields appreciable delocalized electrons, enabling their plasmonic properties. The plasmonic hybrids show potentials in heterogeneous catalysis, in which visible light irradiation enhanced catalytic performance toward p-nitrophenol reduction relative to dark condition. Our findings provide direct evidence for achieving plasmon resonances in hydrogen doped metal oxide semiconductors, and may allow large-scale applications with low-price and earth-abundant elements.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据