Nano-diamond obtained from adipic acid at ultra-high pressures

Abstract Adipic acid was used in this work as a carbon-containing precursor for the HPHT synthesis of a carbon sample containing nano-diamond. The carbon sample consists of lamellar diamond nano-grains of about 30–50 nm embedded in an amorphous or poorly crystallized carbon matrix. The carbon sample comprises mainly sp 2 -hybrydized carbon in form of graphite or amorphous carbon.