Hon Hai Precision Industry Co., Ltd.

Tsinghua University

Meng-Ya Li

Shou-Shan Fan

Kai-Li Jiang

Jia-Ping Wang

Yang Wu

Shu Luo

The present disclosure relates to a carbon nanotube sponge comprising: a plurality of carbon nanotubes combined by van der Waals force to form a free-standing structure, wherein a plurality of micropores are defined by adjacent carbon nanotubes; and a plurality of carboxyl groups and hydroxyl groups located on surfaces of the plurality of carbon nanotubes; wherein a weight percentage of the carboxyl groups in the carbon nanotube sponge ranges from about 10% to about 20%, and a weight percentage of the hydroxyl groups in the carbon nanotube sponge ranges from about 5% to about 15%.

Carbon nanotube sponge

The present disclosure relates to a method for making a carbon nanotube sponge. A carbon nanotube film structure comprising a plurality of carbon nanotubes and an oxidizing solution formed by an oxidizing agent and hydrogen peroxide is provided. The carbon nanotube film structure is soaked in the oxidizing solution to form a preform. Finally, the carbon nanotube sponge is obtained by freeze-drying the preform under vacuum condition. The present disclosure also relates to a carbon nanotube sponge obtained by above method.

Carbon nanotube sponge and method for making the same

Growing community of inventors

Beijing, China

Meng-Ya Li