Large-Scale Electrosynthesis of Carbon Nano-Onions from CO2 as a Potential Replacement for Carbon Black
Graphite and carbon black are major global commodities whose production generates substantial CO _2 emissions. Carbon nano-onions (CNOs), consisting of concentric graphene spheres with enhanced properties due to their unique morphology, represent a promising next-generation material. This study pres...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
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| Series: | ECS Advances |
| Online Access: | https://doi.org/10.1149/2754-2734/adeda4 |
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| Summary: | Graphite and carbon black are major global commodities whose production generates substantial CO _2 emissions. Carbon nano-onions (CNOs), consisting of concentric graphene spheres with enhanced properties due to their unique morphology, represent a promising next-generation material. This study presents a scalable, low-cost, carbon-negative electrosynthesis of CNOs directly from greenhouse CO _2 . Electrolysis is performed in molten lithium and lithium/strontium carbonate mixtures near their melting points, which suppresses transition metal-catalyzed Carbon NanoTube (CNT) formation, favoring uniform CNO growth. The method offers an efficient pathway for sustainable carbon nanomaterial production and CO _2 utilization. |
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| ISSN: | 2754-2734 |