Resolution of the reciprocity between radical species from precursor and closed pore formation in hard carbon for sodium storage
Copyright © 2024 Elsevier Inc. All rights reserved..
Hard carbon (HC) has emerged as a highly promising anode material for sodium ion batteries, drawing tremendous interest in producing this material with low-cost and easily accessible precursors. The determination of the crucial parameters of precursors influencing the formation of key structures, such as closed pores, in the HC is of paramount importance. Considering the potential role of free radicals in the structural evolution of the precursors, we, for the first time, delve into the impact of radical species on the development of closed pores by electron paramagnetic resonance spectroscopy, with petroleum asphalt as the model system. Our findings reveal that carbon centred radicals, with the g value close to that of the free electron (2.0023), exhibit a propensity to form long-range, well-ordered graphitic structures with lower sodium storage capacity. Conversely, the deliberately incorporated oxygen radicals with the g value over 2.005 require a higher energy for ordering the graphitic structures, leading to the creation of closed pores. As a result, the optimal sample showcases a four-fold increase in plateau capacity for sodium ion storage due to the pore filling process. Our research underscores the pivotal role of employing electron paramagnetic resonance spectroscopy studying the critical structural evolution of functional carbon materials.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:664 |
|---|---|
| Enthalten in: |
Journal of colloid and interface science - 664(2024) vom: 15. Apr., Seite 681-690 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Wang, Bin [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Closed pores |
|---|
| Anmerkungen: |
Date Revised 06.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
|---|
| doi: |
10.1016/j.jcis.2024.03.068 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM369820452 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM369820452 | ||
| 003 | DE-627 | ||
| 005 | 20240407232356.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240317s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.jcis.2024.03.068 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1368.xml |
| 035 | |a (DE-627)NLM369820452 | ||
| 035 | |a (NLM)38492369 | ||
| 035 | |a (PII)S0021-9797(24)00551-4 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Wang, Bin |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Resolution of the reciprocity between radical species from precursor and closed pore formation in hard carbon for sodium storage |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 06.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2024 Elsevier Inc. All rights reserved. | ||
| 520 | |a Hard carbon (HC) has emerged as a highly promising anode material for sodium ion batteries, drawing tremendous interest in producing this material with low-cost and easily accessible precursors. The determination of the crucial parameters of precursors influencing the formation of key structures, such as closed pores, in the HC is of paramount importance. Considering the potential role of free radicals in the structural evolution of the precursors, we, for the first time, delve into the impact of radical species on the development of closed pores by electron paramagnetic resonance spectroscopy, with petroleum asphalt as the model system. Our findings reveal that carbon centred radicals, with the g value close to that of the free electron (2.0023), exhibit a propensity to form long-range, well-ordered graphitic structures with lower sodium storage capacity. Conversely, the deliberately incorporated oxygen radicals with the g value over 2.005 require a higher energy for ordering the graphitic structures, leading to the creation of closed pores. As a result, the optimal sample showcases a four-fold increase in plateau capacity for sodium ion storage due to the pore filling process. Our research underscores the pivotal role of employing electron paramagnetic resonance spectroscopy studying the critical structural evolution of functional carbon materials | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Closed pores | |
| 650 | 4 | |a Hard carbon | |
| 650 | 4 | |a Radical | |
| 650 | 4 | |a Sodium ion batteries | |
| 700 | 1 | |a Yao, Yazhen |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wanli |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Yujie |e verfasserin |4 aut | |
| 700 | 1 | |a Wan, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yi |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Qiang |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Mingbo |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of colloid and interface science |d 1966 |g 664(2024) vom: 15. Apr., Seite 681-690 |w (DE-627)NLM041487958 |x 1095-7103 |7 nnns |
| 773 | 1 | 8 | |g volume:664 |g year:2024 |g day:15 |g month:04 |g pages:681-690 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.jcis.2024.03.068 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 664 |j 2024 |b 15 |c 04 |h 681-690 | ||