Wet Chemistry Self-Seeded Surface-Deposition Process toward Amorphous Carbon Nanotubes and Their Electrochemical Application
In this paper, bunches of amorphous carbon nanotubes (α-CNTs) have been successfully synthesized on a large scale from a solution-based reaction between ferrocene and carbon tetrachloride at 180 °C for 12 h. The α-CNT is 3−5 µm in length and ~300/200 nm in diameter (outer/inner) and has a Brunauer–Emmett–Teller (BET) specific surface area of 431 m2 g−1 with a narrow pore distribution centered at 4.03 nm. The as-prepared α-CNTs showed a reversible capacity of ~302 mA h g−1 and little hysteresis in the charge/discharge experiments of secondary lithium ion batteries, which suggested that the α-CNTs might become a new candidate as an electrode material in secondary lithium-ion batteries. Herein, a possible self-seeded surface-deposition growth mechanism of these α-CNTs has been proposed. This mechanism is of importance to understand the nucleation process in the solution phase and growth of other nanotubes through a similar seeded deposition process.[color=red][fbox=Random Bonus]Congratulations to jmshen, who obtained 4 token(s) from the system by posting this thread.[/fbox][/color]
Welcome new QM from Suzhou. Welcome new QM! welcome new QM 又在另一个BBS遇到你了！:D
在苏州待的还不错吧！？
[[i] 本帖最后由 sqmsqm 于 2008-8-26 16:30 编辑 [/i]]
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