Mesoporous carbon nanospheres

Eang Y, Gu D, Zou Y, Wu Z, Li E, Che R, Deng Y, Tu B, Zhao D (2010) A low-concentration hydrothermal synthesis of biocompatible ordered mesoporous carbon nanospheres with tunable and uniform size. Angew Chem Int Ed 49 7987-7991... 

Lei, Z. et al. 2011. Mesoporous carbon nanospheres with an excellent electroca-pacitive performance. Journal of Materials Chemistry, 21, 2274. 

Figure 32.1 Schematic iiiustration of the formation of mesoporous carbon nanospheres [26].

Yu, B. Y. Kwak, S.-Y., Carbon quantum dots embedded with mesoporous hematite nanospheres as efficient visible light-active photocatalysts. J. Mat. Chem. 2012,22 8345-8353. 

PPy consists of five-membered cycUc rings with crosshnking structures (a,a-/Q ,/3-links). Accordingly, PPy has been shown to be an excellent precursor for fabricating various graphitic carbon nanomaterials such as a carbon nanosphere [146], carbon nanocapsule [84,223],CNT [172,249],mesoporous... 

Qin Y, Li J, Yuan J, Kong Y, Tao Y, Lin F, Li S (2014) Hollow mesoporous carbon nitride nanosphere/three-dimensional graphene composite as high efficient electrocatalyst for oxygen reduction reaction. J Power Sources 272 696-702... 

In the MCNS, the microporous nanospheres are interlinked to form a three-dimensional mesoporous network. Their exceptional performance could be also related with the presence of mesopores which provide a rapid mass transport of ions within the electrode, facilitating the charging and discharging of the double layer. This effect has been already consider when studying activated carbons, which surface capacitance was found to increase with the mesopore content The optimal proportion of mesopores for using activated carbons in EDLCs was found to be between 20 and 50% [57]. 

Spherical, and size) of the nanopores in the mesoporous silica defines the width of the polymer distribution. This approach, in which the polymers are degraded to convert them to carbon and the silica template is dissolved, permits the preparation of ordered arrays of hollow nanospheres and nanotubes. 

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