TiO2 nanoparticle embedded nitrogen doped electrospun helical carbon nanofiber-carbon nanotube hybrid anode for lithium-ion batteries

Photocatalytic Reduction of CO2 with N-Doped TiO2-Based Photocatalysts Obtained in One-Pot Supercritical Synthesis

“…The deconvoluted O 1s spectra of N-doped TiO 2 nanoparticles, TiO 2 /CNT and TiO 2 /rGO composites (the latter as example, Figure 8 a) showed the peak at 529 eV representing the stoichiometric existence of oxygen network in TiO 2 with respect to Ti (Ti-O) as well as the doped N (Ti-O-N) [ 5 ]. The peaks at 531 eV and 535 eV corresponded to surface adsorbed oxygen and water, respectively [ 49 , 50 ]. When O 1s spectra of supports and composites were compared (N 10 /rGO as example, Figure 8 b), new peaks at 531 and 533 eV appeared, related to C=O (carbonyl, carboxyl) and C-O (epoxy, hydroxyl) groups, respectively [ 50 ].…”

“…The peaks at 531 eV and 535 eV corresponded to surface adsorbed oxygen and water, respectively [ 49 , 50 ]. When O 1s spectra of supports and composites were compared (N 10 /rGO as example, Figure 8 b), new peaks at 531 and 533 eV appeared, related to C=O (carbonyl, carboxyl) and C-O (epoxy, hydroxyl) groups, respectively [ 50 ]. All these results imply that TiO 2 may be doped with N, and the existence of functional groups in supports are susceptible to have bound TiO 2 particles.…”

“…In the case of N-doped CNT and TiO 2 /CNT composites (shown N 1 /TiO 2 /CNT as example in Figure 9 a), the C 1s spectra are deconvoluted into two peaks at 283.6–284.5 and 290.1–290.9 eV [ 17 ]. The first one is bigger and due to graphitic carbon in CNT, whereas the second one is related to C=O/C-N bonds [ 50 ]. C 1s spectra of N-doped rGO ( Figure 9 b) and TiO 2 /rGO composites ( Figure 9 c) can be deconvoluted into 2 and 4 peaks, respectively.…”

Implementation of heteroatom-doped nanomaterial/core–shell nanostructure based electrocatalysts for fuel cells and metal-ion/air/sulfur batteries

“…Recently, there have been several reports on the application of CSNs and HCSNs for LIB fabrication due to their advantageous properties, which include controlled porosity, high surface area, tunability of the core and shell compositions, and retention of the structural integrity and stability after multiple cycles of use. 166,[169][170][171][172][173][174][175][176][177][178] Liu et al commenced their investigation of N-heteroatom doped multi-CSNs by synthesizing highly uniform Mn 3 O 4 nanoparticles by a hydrothermal method in a Teflon-lined stainless-steel autoclave at 80 1C for 2 h. Subsequently, polymerization was performed along with the growth of the shell structure on Mn 3 O 4 nanoparticle cores using dopamine (DA) while stirring at room temperature for 24 h, followed by drying at 100 1C for 12 h (Fig. 8).…”

Bronze titanium dioxide nanowires with N‐rich pseudocapacitive surfaces toward improved lithium kinetics and charge storage

“…However, the relationship between the morphology of these TiO 2 (B) particles and their electrical conduction properties is insignificant. Furthermore, the low electronic conductivity (~10 À12 S cm À1 ) of TiO 2 (B) can be enhanced by simply complexing it with conductive functional materials (eg, carbon nanotubes or graphene) [22][23][24][25][26] or by increasing the content of the conducting agent (eg, carbon black) in the TiO 2 (B) anode. However, these solutions inevitably lower the volume fraction of electrochemically active TiO 2 (B) particles in a battery, which consequently reduces the energy density of the battery.…”