Ultra-low-density GNS/CA composite aerogels with ultra-high specific surface for dye removal

A facile strategy for the synthesis of graphene/V2O5 nanospheres and graphene/VN nanospheres derived from a single graphene oxide-wrapped VOx nanosphere precursor for hybrid supercapacitors

“…S1a (ESI †), the following functional groups were identied in the sample: O-H stretching vibrations (3420 cm À1 ), C]O stretching vibration (1726 cm À1 ), C]C from unoxidized sp 2 CC bonds (1623 cm À1 ), and C-O vibrations (1060 cm À1 ). 30 The result of the FTIR spectra conrms the presence of oxygencontaining groups on as-prepared GO surface, which are benet for forming stable and uniform dispersion. In the Raman spectra ( Fig.…”

Synthesis of graphene oxide-mediated high-porosity Ni/C aerogels through topological MOF deformation for enhanced electromagnetic absorption and thermal management

“…Very interestingly, they are also regarded as qualied structural additives to reinforce mechanical properties and suppress volume shrinkage in different aerogels, e.g., SiO 2 aerogel, resorcinolformaldehyde aerogel, cellulose aerogel, and carbon aerogel. [38][39][40][41] Inspired by these ndings, we introduce GO nanosheets in the system for topological deformation of Ni-MOFs for the rst time. The presence of GO nanosheets indeed resists volume shrinkage during the pyrolysis process, which can be decreased from 81.5% of Ni/C composite aerogels (NCCAs) to 38.4% of Ni/C@rGO composite aerogels (NCGCAs).…”