Author(s): Shao, W (Shao, Wei); Pan, QQ (Pan, Qianqian); Chen, QL (Chen, Qiaoli); Zhu, CZ (Zhu, Chongzhi); Tao, WJ (Tao, Weijian); Zhu, HM (Zhu, Haiming); Song, HJ (Song, Huijun); Liu, XL (Liu, Xuelu); Tan, PH (Tan, Ping-Heng); Sheng, G (Sheng, Guan); Sun, TL (Sun, Tulai); Li, XN (Li, Xiaonian); Zhu, YH (Zhu, Yihan)

Source: ADVANCED FUNCTIONAL MATERIALS Article Number: 2006738 DOI: 10.1002/adfm.202006738 Early Access Date: OCT 2020

Abstract: Metallic nanocrystals manifest themselves as fascinating light absorbers for applications in plasmon-enhanced photocatalysis and solar energy harvesting. The essential challenges lie in harvesting the full-spectrum solar light and harnessing the plasmon-induced hot carriers at the metal-acceptor interface. To this end, a cooperative overpotential and underpotential deposition strategy is proposed to mitigate both the challenges. Specifically, by utilizing both ionic additive and thiol passivator to introduce symmetry-breaking growth over gold icosahedral nanocrystals, the microscopic origin can be attributed to the site-specific nucleation of stacking faults and dislocations. By adopting asymmetric crystal shape and unique surface facets, such nanocrystals attain high activity toward photocatalytic ammonia borane hydrolysis, arising from combined broadband plasmonic properties and enhanced direct transfer of hot electrons across the metal-adsorbate interface.

Accession Number: WOS:000575813600001

ISSN: 1616-301X

eISSN: 1616-3028

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/adfm.202006738