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나노입자 연구단
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Reversible and cooperative photoactivation of single-atom Cu/TiO 2 photocatalysts

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Title
Reversible and cooperative photoactivation of single-atom Cu/TiO 2 photocatalysts
Author(s)
Byoung-Hoon Lee; Park S.; Kim M.; Arun K. Sinha; Seong Chan Lee; Euiyeon Jung; Chang W.J.; Lee K.-S.; Jeong Hyun Kim; Cho S.-P.; Kim H.; Nam K.T.; Taeghwan Hyeon
Publication Date
2019-06
Journal
NATURE MATERIALS, v.18, no.6, pp.620 - +
Publisher
NATURE PUBLISHING GROUP
Abstract
© 2019, The Author(s), under exclusive licence to Springer Nature Limited. The reversible and cooperative activation process, which includes electron transfer from surrounding redox mediators, the reversible valence change of cofactors and macroscopic functional/structural change, is one of the most important characteristics of biological enzymes, and has frequently been used in the design of homogeneous catalysts. However, there are virtually no reports on industrially important heterogeneous catalysts with these enzyme-like characteristics. Here, we report on the design and synthesis of highly active TiO 2 photocatalysts incorporating site-specific single copper atoms (Cu/TiO 2 ) that exhibit a reversible and cooperative photoactivation process. Our atomic-level design and synthetic strategy provide a platform that facilitates valence control of co-catalyst copper atoms, reversible modulation of the macroscopic optoelectronic properties of TiO 2 and enhancement of photocatalytic hydrogen generation activity, extending the boundaries of conventional heterogeneous catalysts
URI
https://pr.ibs.re.kr/handle/8788114/6915
ISSN
1476-1122
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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