- Title
- Green synthesis of porous graphitic carbons from coal tar pitch templated by nano-CaCO₃ for high-performance lithium-ion batteries
- Creator
- Xing, Baolin; Zhang, Chuantao; Liu, Quanrun; Zhang, Chuanziang; Huang, Guangxu; Guo, Hui; Cao, Jianliang; Cao, Yijun; Yu, Jianglong; Chen, Zhengfei
- Relation
- Journal of Alloys and Compounds Vol. 795, Issue 30 July 2019, p. 91-102
- Publisher Link
- http://dx.doi.org/10.1016/j.jallcom.2019.04.300
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- A green and cost-effective strategy was developed to synthesize porous graphitic carbons from coal tar pitch using commercially available CaCO₃ nanoparticles as template without any further activation. The prepared porous graphitic carbons have well-developed hierarchical porous structure with moderate specific surface area (~236.3 m²g⎼¹)and large pore volume (~2.871 cm³ g⎼¹), cross-linked carbon skeleton with relatively high levels of graphitic feature and enriched in oxygen/nitrogen-containing functional groups. Such unique microstructure characteristics of porous graphitic carbons not only can endow sufficient available space or active sites for Li-ions storage, but also can provide favorable and efficient channels for the Li-ions/electrons transportation. The prepared porous graphitic carbon PGC-3 applied as anode for lithium-ion batteries (LIBs)shows a large reversible capacity of 707 mAh g⎼¹ at 0.05 A g⎼¹ , and presents a superior rate capability with high reversible capacities of 299 mAh g⎼¹ and 248 mAh g⎼¹ even at the extremely high current densities of 3 A g⎼¹ and 5 A g⎼¹, respectively. Moreover, such porous graphitic carbon also exhibits an outstanding long-term electrochemical stability and excellent cycling performance with over 93.5% capacity retention after 1000 cycles. This study paves a promising and universal way for large-scale production of porous graphitic carbons porous from coal tar pitch for high performance anode materials used in LIBs.
- Subject
- porous graphitic carbons; coal tar pitch; nano-CaCO3 templating; lithium ion batteries; anode materials; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1445417
- Identifier
- uon:42583
- Identifier
- ISSN:0925-8388
- Language
- eng
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