Tunability of the self-assemblies of porous polygon-like zinc cobaltite architectures using mixed solvents for high-performance supercapacitors

Graphene oxide based nickel–copper–zinc and copper–zinc cobaltite: catalysts for the thermolysis of ammonium perchlorate and nitrotriazolone

“…Moreover, small peaks are also observed in the range of 1400 cm -1 -1650 cm -1 Raman shift due to the effect of GO molecule or these region peaks are characteristic peaks of GO molecule. 41 A slight shift in peak positions was observed for all Raman active modes concerning spinel cobaltites NiCuZnCo2O4 and CuZnCo2O4. In addition, the peaks broadening and their shifting to the lower wavenumbers are associated with the high occupancy of transition metal ions in the octahedral sites or the internal effect of the GO molecule.…”

“…[43][44][45]47 As a whole, the catalytic roles that spinel cobaltite nanomaterials with and without GO additive play in the AP and NTO decomposition are still more interesting for researchers. [41][42][43][44][45][46][47] To study the catalytic kinetic properties of spinel cobaltite nanomaterials NiCuZnCo2O4, Here Tp is the peak temperature (K), β is the heating rate ( o C/min or K/min), R is the gas constant (kJ/K.mol), Ea is the activation energy, and A is the preexponential factor. Ea of pure AP and pure NTO was 167±7 kJ/mol and 380±20 kJ/mol, respectively.…”

Recent progress in ZnCo2O4and its composites for energy storage and conversion: a review

“…16 Interestingly, their catalytic activity for the OER follows the order: ZnCo According to the authors, the active sites for the OER are M 3+ species in the octahedral site, and their activities are significantly dependent on the Co 3+ /Co 2+ and M 3+ /M 2+ content ratios in the octahedral site as demonstrated according to XPS and in situ X-ray absorption fine structure (XAFS) measurements, demonstrating the importance of the presence of Zn 2+ ions in ZnCo 2 O 4 . 16 Complementarily, ZnCo 2 O 4 is a promising energy storage material which shows advantageous properties, including low cost, low-toxicity, different morphologies, high electrical conductivity, 17,18 and high theoretical capacity in comparison with unitary ZnO and CoO and binary Co 3 O 4 . 17 Inspired by the above considerations, and despite being the second most reported cobaltite, as far as we know, there is no review work summarizing recent progress in ZnCo 2 O 4 in energy applications.…”

“…16 Complementarily, ZnCo 2 O 4 is a promising energy storage material which shows advantageous properties, including low cost, low-toxicity, different morphologies, high electrical conductivity, 17,18 and high theoretical capacity in comparison with unitary ZnO and CoO and binary Co 3 O 4 . 17 Inspired by the above considerations, and despite being the second most reported cobaltite, as far as we know, there is no review work summarizing recent progress in ZnCo 2 O 4 in energy applications. Therefore, in this review article we focus on ZnCo 2 O 4 and its composites as electrode materials for energy technologies, including the main strategies used for the design (Scheme 1) of HSCs, LIBs and MABs, as well as the advancements as electrocatalysts for water-splitting (HER and OER) and the ORR.…”

“…16 Complementarily, ZnCo 2 O 4 is a promising energy storage material which shows advantageous properties, including low cost, low-toxicity, different morphologies, high electrical conductivity, 17,18 and high theoretical capacity in comparison with unitary ZnO and CoO and binary Co 3 O 4 . 17…”