The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene) | Zendy

Olha Mashtalir | Zendy; Maria R. Lukatskaya | Zendy; А. И. Колесников | Zendy; Encarnación RaymundoPiñero | Zendy; Michael Naguib | Zendy; Michel W. Barsoum | Zendy; Yury Gogotsi | Zendy

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The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene)

Author(s) -

Olha Mashtalir,

Maria R. Lukatskaya,

А. И. Колесников,

Encarnación RaymundoPiñero,

Michael Naguib,

Michel W. Barsoum,

Yury Gogotsi

Publication year - 2016

Publication title -

nanoscale

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.038

H-Index - 224

eISSN - 2040-3372

pISSN - 2040-3364

DOI - 10.1039/c6nr01462c

Subject(s) - intercalation (chemistry) , hydrazine (antidepressant) , electrolyte , titanium carbide , titanium , materials science , capacitance , supercapacitor , inorganic chemistry , carbide , chemical engineering , electrode , fluorine , chemistry , metallurgy , chromatography , engineering

Herein we show that hydrazine intercalation into 2D titanium carbide (Ti3C2-based MXene) results in changes in its surface chemistry by decreasing the amounts of fluorine, OH surface groups and intercalated water. It also creates a pillaring effect between Ti3C2Tx layers pre-opening the structure and improving the accessability to active sites. The hydrazine treated material has demonstrated a greatly improved capacitance of 250 F g(-1) in acidic electrolytes with an excellent cycling ability for electrodes as thick as 75 μm.

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