Charge modulation over atomically precise metal nanoclusters non-conjugated polymers for photoelectrochemical water oxidation
Atomically precise metal nanoclusters (NCs) have emerged as a pivotal sector of metal nanomaterials due to their unique atomic stacking mode, quantum confinement effect and abundant active sites. In particular, the discrete energy band structure of metal NCs renders them emerging photosensitizers. N...
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Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 11; no. 5; pp. 242 - 2411 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Published |
31.01.2023
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Abstract | Atomically precise metal nanoclusters (NCs) have emerged as a pivotal sector of metal nanomaterials due to their unique atomic stacking mode, quantum confinement effect and abundant active sites. In particular, the discrete energy band structure of metal NCs renders them emerging photosensitizers. Nonetheless, atomically precise metal NCs suffer from ultrashort charge lifetime and poor stability, impeding the construction of robust and stable metal NC-based photosystems. Herein, we designed multilayered metal oxide (MO)/(metal NCs/insulating polymer)
n
(metal NCs: Au
x
@GSH, Ag
x
@GSH, and Au
25
@GSH
18
NCs) heterostructured photoanodes, wherein glutathione (GSH)-capped metal NCs and an ultra-thin non-conjugated insulating poly(allylamine hydrochloride) (PAH) layer are electrostatically layer-by-layer self-assembled on MO substrates in a periodic face-to-face stacking mode. We infer that electrons photoexcited over metal NCs in MOs/(metal NCs/PAH)
n
photosystems can be effectively extracted and tunneled to the adjoining MO substrates through the insulating polymer interim layer by engendering the tandem charge transfer pathway, thus significantly boosting the visible-light-driven photoelectrochemical water oxidation. This work opens up a new frontier for strategically mediating tunable charge transport over atomically precise metal NCs towards solar-to-hydrogen conversion.
Electron tunneling was stimulated over atomically precise metal nanoclusters
via
insulating polymers for engendering tandem charge transfer towards boosted solar water oxidation. |
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AbstractList | Atomically precise metal nanoclusters (NCs) have emerged as a pivotal sector of metal nanomaterials due to their unique atomic stacking mode, quantum confinement effect and abundant active sites. In particular, the discrete energy band structure of metal NCs renders them emerging photosensitizers. Nonetheless, atomically precise metal NCs suffer from ultrashort charge lifetime and poor stability, impeding the construction of robust and stable metal NC-based photosystems. Herein, we designed multilayered metal oxide (MO)/(metal NCs/insulating polymer)
n
(metal NCs: Au
x
@GSH, Ag
x
@GSH, and Au
25
@GSH
18
NCs) heterostructured photoanodes, wherein glutathione (GSH)-capped metal NCs and an ultra-thin non-conjugated insulating poly(allylamine hydrochloride) (PAH) layer are electrostatically layer-by-layer self-assembled on MO substrates in a periodic face-to-face stacking mode. We infer that electrons photoexcited over metal NCs in MOs/(metal NCs/PAH)
n
photosystems can be effectively extracted and tunneled to the adjoining MO substrates through the insulating polymer interim layer by engendering the tandem charge transfer pathway, thus significantly boosting the visible-light-driven photoelectrochemical water oxidation. This work opens up a new frontier for strategically mediating tunable charge transport over atomically precise metal NCs towards solar-to-hydrogen conversion.
Electron tunneling was stimulated over atomically precise metal nanoclusters
via
insulating polymers for engendering tandem charge transfer towards boosted solar water oxidation. |
Author | Li, Jia-Le Ge, Xing-Zu Wu, Gao Mo, Qiao-Ling Wu, Yue Xiao, Fang-Xing Xu, Shu-Ran Xiao, Yang Wang, Kun |
AuthorAffiliation | Fuzhou University Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China College of Materials Science and Engineering New Campus |
AuthorAffiliation_xml | – name: New Campus – name: College of Materials Science and Engineering – name: Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China – name: Fuzhou University |
Author_xml | – sequence: 1 givenname: Yang surname: Xiao fullname: Xiao, Yang – sequence: 2 givenname: Qiao-Ling surname: Mo fullname: Mo, Qiao-Ling – sequence: 3 givenname: Gao surname: Wu fullname: Wu, Gao – sequence: 4 givenname: Kun surname: Wang fullname: Wang, Kun – sequence: 5 givenname: Xing-Zu surname: Ge fullname: Ge, Xing-Zu – sequence: 6 givenname: Shu-Ran surname: Xu fullname: Xu, Shu-Ran – sequence: 7 givenname: Jia-Le surname: Li fullname: Li, Jia-Le – sequence: 8 givenname: Yue surname: Wu fullname: Wu, Yue – sequence: 9 givenname: Fang-Xing surname: Xiao fullname: Xiao, Fang-Xing |
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Snippet | Atomically precise metal nanoclusters (NCs) have emerged as a pivotal sector of metal nanomaterials due to their unique atomic stacking mode, quantum... |
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Title | Charge modulation over atomically precise metal nanoclusters non-conjugated polymers for photoelectrochemical water oxidation |
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