Crystal Facet Engineering on SrTiO3 Enhances Photocatalytic Overall Water Splitting
Single-crystal semiconductor-based photocatalysts exposing unique crystallographic facets show promising applications in energy and environmental technologies; however, crystal facet engineering through solid-state synthesis for photocatalytic overall water splitting is still challenging. Herein, we develop a novel crystal facet engineering strategy through solid-state recrystallization to synthesize uniform SrTiO3 single crystals exposing tailored {111} facets. The presynthesized low-crystalline SrTiO3 precursors enable the formation of well-defined single crystals through kinetically improved crystal structure transformation during solid-state recrystallization process. By employing subtle Al3+ ions as surface morphology modulators, the crystal surface orientation can be precisely tuned to a controlled percentage of {111} facets. The photocatalytic overall water splitting activity increases with the exposure percentage of {111} facets. Owing to the outstanding crystallinity and favorable anisotropic surface structure, the SrTiO3 single crystals with 36.6% of {111} facets lead to a 3-fold enhancement of photocatalytic hydrogen evolution rates up to 1.55 mmol·h-1 in a stoichiometric ratio of 2:1 than thermodynamically stable SrTiO3 enclosed with isotropic {100} facets.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:146 |
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| Enthalten in: |
Journal of the American Chemical Society - 146(2024), 10 vom: 13. März, Seite 6618-6627 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Yang [VerfasserIn] |
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| Anmerkungen: |
Date Revised 13.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/jacs.3c12062 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM368394484 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Single-crystal semiconductor-based photocatalysts exposing unique crystallographic facets show promising applications in energy and environmental technologies; however, crystal facet engineering through solid-state synthesis for photocatalytic overall water splitting is still challenging. Herein, we develop a novel crystal facet engineering strategy through solid-state recrystallization to synthesize uniform SrTiO3 single crystals exposing tailored {111} facets. The presynthesized low-crystalline SrTiO3 precursors enable the formation of well-defined single crystals through kinetically improved crystal structure transformation during solid-state recrystallization process. By employing subtle Al3+ ions as surface morphology modulators, the crystal surface orientation can be precisely tuned to a controlled percentage of {111} facets. The photocatalytic overall water splitting activity increases with the exposure percentage of {111} facets. Owing to the outstanding crystallinity and favorable anisotropic surface structure, the SrTiO3 single crystals with 36.6% of {111} facets lead to a 3-fold enhancement of photocatalytic hydrogen evolution rates up to 1.55 mmol·h-1 in a stoichiometric ratio of 2:1 than thermodynamically stable SrTiO3 enclosed with isotropic {100} facets | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Wu, Xuefeng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zhi-Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Peng, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yuanwei |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Shuang |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Chenghua |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Xiaoxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xie |e verfasserin |4 aut | |
| 700 | 1 | |a Kang, Jun |e verfasserin |4 aut | |
| 700 | 1 | |a Wei, Su-Huai |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Peng Fei |e verfasserin |4 aut | |
| 700 | 1 | |a Dai, Sheng |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Hua Gui |e verfasserin |4 aut | |
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