A weighed amount of the dried solid was transferred into a flask and soaked in a certain amount of mixed acids of H2SO4/HNO3 (3:1 volume ratio) and sonicated at 60 °C for 12 h.
However, graphene prepared by thermal expansion of graphite oxide always has very limited storage capacity, so we treat the thermal exfoliated graphite oxide (TEGO) in mixed acid to enhance the hydrophily of TEGO and achieve higher capacitance.
Genetic modifications that have led to increased hydrogen yields in E. coli have thus far focused on the disruption of key metabolic genes of the mixed acid fermentation pathways of E. coli, and of specific regulators of the FHL system.
This study shows that it is possible to synthesize itaconate anaerobically by using the mixed acid pathway of E. coli, in which the synthesis of ethanol/H2 and succinate regenerate NAD.
The aqueous mixed acid solution of HCl and HNO3 was used as solvent to dissolve the Pt and Sn precursors.
Then, nanoporous silicon structures were fabricated when the silicon wafers coated with Ag nanoparticles were etched in the mixed acid solution of H2O2 (3.13 M) and HF (2.46 M) for 3 min, which contained 0.1% commercial additive (C, Nanjing Natural Mew Material Co. Ltd., China).
