Both procedures are compared analyzing, in both precursors, the influence that variables such as H3PO4/precursor ratio, activation temperature and impregnation time have on the resulting activated carbons (ACs) properties.
The resulting activated carbon had higher specific surface area and better iodine adsorption value.
Axial crushing tests demonstrated that there was no worsening of the mechanical strength in the resulting activated monoliths.
The effects of carbonization temperature, activation temperature, activation time and K2CO3/coke mass ratios on surface chemical compositions, pore structure and electrochemical performance of the resulting activated carbons were investigated.
The resulting activated lignin-based carbons possessed high specific surface area (up to 2000 m2/g) and microporosity and mesoporosity easily tunable by adjusting activation conditions and optimizing the amount and particle size of the colloidal silica used.
Allwood and co-workers prepared MoS2 nanocrystals and activated the Mo atoms in the basal surface of MoS2 nanocrystals by S depletion [45], with the resulting activated MoS2 exhibiting an very high HER performance (~150 mV at −10 mA cm−2 and a Tafel slope of ~29 mV dec−1).
