Superior electrochemical performance of mesoporous Fe3O4/CNT nanocomposites as anode material for lithium ion batteries

MoN-decorated nitrogen doped carbon nanotubes anode with high lithium storage performance

“…The remarkably low semicircle observed for MoN/N-CNT composite as compared to all other samples further confirms the higher utilization of this electrode system at higher current rates due to lower charge transfer impedance. On the other hand the high charge transfer resistance of bare MoN electrode further verifies that the making of composite of MoN with f-CNT results in lower impedance due to the synergistic effects[14]. Also the impedance values for CNT and N-CNT show a clear difference with slightly lower resistances observed for N-CNT due to higher conductivity.…”

“…CNT are excellent support materials and are thought to synergistically integrate with other components in the composite structure and build novel properties for many functional applications like LIBs [13][14][15][16], supercapacitors [17], DSSCs [18] and hydrogen storage materials [19]. More recently, N-doped CNT have proven to be more efficient in terms of their 4 electrochemical properties than bare CNT for LIB electrodes due to higher surface energy and larger number of defects [20,21].…”

“…Therefore, the incorporation of N-CNT along with the mesoporous nature of MoN increases the diffusion flux by lowering the ion diffusion path and generating an effective electroconducting structure. The MoO2 electrodes display a relatively larger radius for medium frequency semicircle which leads to its lower14 performance. In case of MoO2/f-CNT, the situation is somewhat better but not as good as for MoN/N-CNT.…”

Binder-free, high-performance carbon nanotube line emitters fabricated using mechanical clamping process

“…The superior emission characteristics stem from the unique onedimensional structure and the extraordinary properties of CNT [6][7][8][9]. Recently, various efforts have been made to enlarge the applicability of CNT emitters to industrial applications, including microwave amplifier tubes, high-resolution electron-beam instruments, X-ray, and terahertz power sources [10][11][12].…”

Fabrication and electromagnetic properties of flowerbud-like CNT-CuPc/Fe 3 O 4

“…Therefore, it is necessary for research scholars to improve the electromagnetic properties of microwave-absorbing materials in terms of matching frequency, the microwave-absorbing bandwidth and matching thickness and so on. In particular, Carbon nanotubes (CNTs) have attracted significant academic and technological attention because of their outstanding electronic properties [3][4][5], mechanical properties [6], chemical properties [7][8][9] and magnetic properties [10] as well as the significant potential applications in nanoscience and nanotechnology fields [11]. However, since CNTs have poor magnetic loss, their microwave absorption capability originates either from polarization, ohmic losses, or from multiple scattering due to the large specific surface area [12].…”