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240627s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202406957
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|a pubmed24n1587.xml
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|a (DE-627)NLM374109591
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|a (NLM)38923059
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|a DE-627
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|c DE-627
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|a eng
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|a Yang, Lijun
|e verfasserin
|4 aut
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|a Atomic Confinement Empowered CoZn Dual-Single-Atom Nanotubes for H2O2 Production in Sequential Dual-Cathode Electro-Fenton Process
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 01.11.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
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|a Single-atom catalysts (SACs) are flourishing in various fields because of their 100% atomic utilization. However, their uncontrollable selectivity, poor stability and vulnerable inactivation remain critical challenges. According to theoretical predictions and experiments, a heteronuclear CoZn dual-single-atom confined in N/O-doped hollow carbon nanotube reactors (CoZnSACNTs) is synthesized via spatial confinement growth. CoZnSA@CNTs exhibit superior performance for H2O2 electrosynthesis over the entire pH range due to dual-confinement of atomic sites and O2 molecule. CoZnSA@CNTs is favorable for H2O2 production mainly because the synergy of adjacent atomic sites, defect-rich feature and nanotube reactor promoted O2 enrichment and enhanced H2O2 reactivity/selectivity. The H2O2 selectivity reaches ∼100% in a range of 0.2-0.65 V versus RHE and the yield achieves 7.50 M gcat -1 with CoZnSA@CNTs/carbon fiber felt, exceeding most of the reported SACs in H-type cells. The obtained H2O2 is converted directly to sodium percarbonate and sodium perborate in a safe way for H2O2 storage/transportation. The sequential dual-cathode electron-Fenton process promotes the formation of reactive oxygen species (•OH, 1O2 and •O2 -) by activating the generated H2O2, enabling accelerated degradation of various pollutants and Cr(VI) detoxification in actual wastewater. This work proposes a promising confinement strategy for catalyst design and selectivity regulation of complex reactions
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|a Journal Article
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|a H2O2 production
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|a atomic confinement
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|a dual‐single‐atom nanotubes
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|a sequential dual‐cathode electro‐fenton
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|a Cheng, Huimin
|e verfasserin
|4 aut
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|a Li, Hui
|e verfasserin
|4 aut
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|a Sun, Ga
|e verfasserin
|4 aut
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|a Liu, Sitong
|e verfasserin
|4 aut
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|a Ma, Tianyi
|e verfasserin
|4 aut
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|a Zhang, Lei
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 44 vom: 01. Nov., Seite e2406957
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:36
|g year:2024
|g number:44
|g day:01
|g month:11
|g pages:e2406957
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|u http://dx.doi.org/10.1002/adma.202406957
|3 Volltext
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