“…The major advantage of these composite materials is that the PC stability can be improved through using a rigid coating or scaffolding material ( Kovalenko et al, 2010 ; Liu and Li, 2020 ), while also providing other synergistic effects such as improved P density ( Aradilla et al, 2016 ). The materials used to create diamond-based composites include polymers such as polyaniline (PANI) ( Kovalenko et al, 2010 ; da Silva et al, 2018 ), polypyrrole (PPy) ( Hébert et al, 2015 ), and poly [3, 4-(ethylenedioxy) thiophene] (PEDOT) ( Aradilla et al, 2016 ); transition metals such as nickel ( Shi et al, 2016 ); and transition metal oxides such as manganese oxide ( Yu et al, 2015 ), nickel hydroxide ( Gao and Nebel, 2015 ), ruthenium oxide ( Spătaru et al, 2007 ), and titanium oxide ( Shi et al, 2015 ). The fabrication methods for these composite materials generally involve either subsequent growth/deposition steps or adding diamond nanoparticles to a polymer synthesis process.…”