Electrochemical and Solid-State Lithiation of Graphitic C3N4

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• 作者：Gabriel M. Veith ; Lo茂c Baggetto ; Leslie A. Adamczyk ; Bingkun Guo ; Suree S. Brown ; Xiao-Guang Sun ; Austin A. Albert ; James R. Humble ; Craig E. Barnes ; Michael J. Bojdys ; Sheng Dai ; Nancy J. Dudney
• 刊名：Chemistry of Materials
• 出版年：2013
• 出版时间：February 12, 2013
• 年：2013
• 卷：25
• 期：3
• 页码：503-508
• 全文大小：377K
• 年卷期：v.25,no.3(February 12, 2013)
• ISSN：1520-5002

文摘

Lithiated graphitic carbon nitride (C₃N₄) was fabricated by electrochemical and solid-state reactions. The addition of Li to C₃N₄ results in a reaction between the Li and the graphite-like C₃N species in C₃N₄. This irreversible reaction leads to the formation of Li-CH鈺怤R and Li-N鈺怌R₂ species, which are detrimental to anode properties. Suitable nitrogen-doped carbon structures for anode applications are predicted to need high concentrations of pyridinic C鈥揘鈥揅 terminal bonds and low concentrations of quaternary C₃N species to boost electronic conductivity and reversibly cycle Li ions.

Keywords:

carbon nitride; lithiation; anode; battery