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Advanced carbon-based nanotubes/nanocages for energy conversion and storage: synthesis, performance and mechanism

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Abstract

Fuel cells, supercapacitors and lithium-ion batteries are the typical energy conversion and storage devices of great significance in which carbon-based nanostructures could play irreplaceable role. The functionalized carbon-based nanotubes/nanocages (CNTs/CNCs) could be applied to fuel cells to lower Pt loading by highly dispersing and immobilizing Pt-based nanoparticles, or to totally get rid of Pt with the metal-free electrocatalytic ability themselves. The abundant nanostructures and morphologies, tunable compositions, high surface area, good conductivity, small volume expansion, as well as the low cost and environmental benignity make the CNTs/CNCs have great potential as electrode materials of supercapacitors and lithium-ion batteries. In this talk I will give a brief introduction to the progressive advancements in our group about the synthesis, performance and mechanism of the CNTs/CNCs for this kind of energy conversion and storage. Special attention will be paid to the materials design by doping the CNTs/CNCs with electron-rich N, electron-deficient B, and the both to elucidate the correlation of the performance with the doping microstructures, which is a general interesting issue in developing the advanced carbon-based energy materials.

© 2013 Optical Society of America

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