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241115s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202412173
|2 doi
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|a pubmed24n1601.xml
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|a (DE-627)NLM380130505
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|a (NLM)39526534
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|a DE-627
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|a eng
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|a Ajmal, Sara
|e verfasserin
|4 aut
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|a Synergetic Modulation of Electronic Properties of Cobalt Oxide via "Tb" Single Atom for Uphill Urea and Water Electrolysis
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 11.11.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a Exploring single-atom (SA) catalysts in hybrid urea-assisted water electrolysis offers a viable alternative to both Hydrogen (H2) generation and polluted water treatment. However, the unfavorable electronic stabilization, low SA content, intrinsically slow kinetics, and imbalanced adsorption-desorption steps are the bottleneck for its scale-up implementation. Herein, a rare-earth Terbium single atom (TbSA) is topologically stabilized on defect-rich Co3O4 (TbSAd-Co3O4) by Tb─O co-ordination for urea oxidation reaction (UOR) and H2 evolution reaction (HER). Benefitting from the strong TbSA interaction with the d-Co3O4, the TbSA@d-Co3O4 achieves a 10 mA cm-2 current density at 1.27 V and -35 mV for UOR and HER, respectively. Remarkably, when TbSA@d-Co3O4 is applied as a bi-functional catalyst in a two-electrode system, it merely requires 1.22 V to acquire 10 mA cm-2 with excellent operational stability for 100 h. The hybrid electrolyzer can be successfully empowered by the triboelectric nanogenerator, AA battery, and solar panel with a nominal potential of 1.5 V. The mechanistic investigation predicts "TbSA" insertion in d-Co3O4 lowered the potential determining step, attributed to balanced reaction energetics for adsorption-desorption of intermediates and favorable charge transfer characteristics for UOR. This work offers a new paradigm to explore the catalytic properties of rare-earth "f-block" elements to create advanced electrocatalysts via structural modulation
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|a Journal Article
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|a environmental remediation
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|a hydrogen generation
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|a rare earth
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|a sustainable energy
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|a urea assisted water electrolysis
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|a Rasheed, Aamir
|e verfasserin
|4 aut
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|a Sheng, Wenxiang
|e verfasserin
|4 aut
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|a Dastgeer, Ghulam
|e verfasserin
|4 aut
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|a Nguyen, Quynh Anh T
|e verfasserin
|4 aut
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|a Wang, Peihong
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Ping
|e verfasserin
|4 aut
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|a Liu, Shoujie
|e verfasserin
|4 aut
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|a Bui, Viet Q
|e verfasserin
|4 aut
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|a Zhu, Manzhou
|e verfasserin
|4 aut
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|a Li, Peng
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Dingsheng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2024) vom: 11. Nov., Seite e2412173
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2024
|g day:11
|g month:11
|g pages:e2412173
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|u http://dx.doi.org/10.1002/adma.202412173
|3 Volltext
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