Preparation and electrochemical performance of ultra-short carbon nanotubes

Carbon‐Based Materials for Lithium‐Ion Batteries, Electrochemical Capacitors, and Their Hybrid Devices

“…[98][99][100] Furthermore, CNTsw ith shorter lengths, whichc an be produced under properg rowth conditions, by ball milling or by solid-state cutting [NiO or FeS etching duringc hemical vapor deposition (CVD) growth],h ave been reported to display better performance. [101][102][103][104][105][106] Thisi sb ecause Li diffusion and intercalation/de-intercalation are limited through longer CNTs. Opening the cap of CNTso rc reatingd efective sites on the side walls through gas/liquid phase chemical etchingo rb all milling can furtheri mprove the capacity.…”

Durability Improvement of a Pt Catalyst with the Use of a Graphitic Carbon Support

“…These bundles are usually entangled to form larger aggregates, leading to difficult dispersion and limiting the practical application of CNTs. [15] Therefore, the advantage of the use of these new nanocarbons is still not clear and achieving a high durability without scarifying the actual activity is still a huge technical challenge.In this paper, we report a new approach for developing a catalyst with both high activity and durability. This is based on the use of carbon nanocages (CNCs) with a graphitic structure as the catalyst support.…”

“…These bundles are usually entangled to form larger aggregates, leading to difficult dispersion and limiting the practical application of CNTs. [15] Therefore, the advantage of the use of these new nanocarbons is still not clear and achieving a high durability without scarifying the actual activity is still a huge technical challenge.…”

Advances in Lithium-Ion Battery Technology Based on Functionalized Carbon Nanotubes for Electrochemical Energy Storage

“…However, there can be other factors that affect the electrochemical performance of CNTs as an anode, which include the CNT surface condition and their length. Surface modification in MWNTs can be achieved through chemical etching, ballmilling, and shortening, and their influence is detailed in Table 18.3 [112,117,[134][135][136][137].…”