Porous hollow carbon spheres: facile fabrication and excellent supercapacitive properties

Construction of Ultrathin Nitrogen-Doped Porous Carbon Nanospheres Coated With Polyaniline Nanorods for Asymmetric Supercapacitors

“…Therefore, capacity performance of electrodes increases with the addition of PANI nanorods confirming by the GCD and CV tests. The maximum specific capacitance (C sp ) of HPCN9, HPCN8, and HPCN7 obtained in Figure 5D is 168 F/g, 133 F/g, and 152 F/g, superior to the capacitance of previous published biomass-carbon electrodes (Zhang H. et al, 2015; Zhang Y. et al, 2015; Lei et al, 2016; Pang et al, 2016a,b). The HPCN9 shows the interconnected porous structure to help reducing the diffusion pathway of electrolyte ions and providing low-resistance to enhanced capability performances.…”

“…It indicates the O/N functional groups originated form wheat flour and urea during the carbonization process. For HPCN9/PANI, three peaks centered at 401.3, 399.6, and 398.2 eV indicate the positively charged nitrogen atoms (-NH + =), benzenoid amine (-NH-) and quinoid amine (-N =) in the deconvoluted N 1s spectra (Figure S1d), respectively (Yu et al, 2013a; Zhang Y. et al, 2015; Wang and Liu, 2017).…”

Macroalgae-derived nitrogen-doped hierarchical porous carbons with high performance for H2 storage and supercapacitors

“…Supercapacitors received great interest considering that they have fast charge capabilities, long-term cycling life and larger energy density. [9][10][11] To meet the requirements for supercapacitors and H 2 storage, the key point is the design of suitable adsorbents and electrode materials with simple preparation process to precisely control pore structure of materials.…”

A Comparison of Hydrogen Storage in Pt, Pd and Pt/Pd Alloys Loaded Disordered Mesoporous Hollow Carbon Spheres

“…The D band mainly characterized the existence of defects within the graphitic structure [ 39 ]. The G peak is attributed to sp 2 vibrations between carbon atoms, on the basis of which the degree of graphitization of the carbon product is determined [ 40 , 41 ]. It is known that the intensity ratio of D and G peaks ( I D / I G ) is an indicator of the degree of graphitization of the material [ 39 ].…”