Heteroatom-Doped Carbon Allotropes in Corrosion Protection

Communication in Physical Sciences, 2023, 10(1): 130-137 Authors: Elizabeth Chinyere Nwaokorongwu, Greatman Mkpuruoma Onwunyiriuwa, Ajike Eziyi Emea Received:04 January 2023/Accepted 30 November 2023 Heteroatom-doped carbon allotropes, characterized by the incorporation of non-carbon elements into their structures, have emerged as promising candidates for advanced corrosion protection. This explores the significance of heteroatom-doped carbon allotropes, such as nitrogen-doped graphene in revolutionizing corrosion inhibition techniques. These materials exhibit enhanced catalytic activity, improved barrier properties, and tailored surface reactivity, making them invaluable for inhibiting corrosive processes which is a ubiquitous challenge in materials science, and demands innovative strategies for effective protection.  This article focuses on the mechanisms through which heteroatom-doped carbon allotropes provide corrosion protection, including barrier protection and cathodic protection, elucidating their fundamental role in hindering the corrosion process and also highlighting their applications in diverse industries, emphasizing their pivotal role in ensuring the durability and longevity of materials exposed to corrosive environments. The challenges and future prospects associated with these materials are also discussed, underscoring their potential to redefine the landscape of corrosion protection technologies

Investigation of the inhibitive Properties of Irvingia gabonensisExtractan for the Corrosion of Aluminum Alloy (aa4007) in 1 m HCl

Communication in Physical Sciences, 2023, 9(3):193-202 Ajike Eziyi Emea* Lebe Agwu Nnanna, Orji Obinwa, Victor Emeka Ihuomah, Elizabeth Chinyere Nwaokorongwu Received: 13 March 2023/Accepted 29 May 2023 The corrosion efficiency of Irvingiagabonensis leaf extract for aluminium in 1MHCl media was investigated by gravimetric methods. The phytochemical analysis of the plant extract indicated the presence of saponin, alkaloid, flavonoid, and tannin which were considered effective against the corrosion of metals due to the commended chemical structures of the identified phytochemicals.  Observations of results from weight loss experiments showed a progressive enhancement of the inhibitory efficiency with extract concentration and decreasing temperature. The maximum observed inhibition efficiency of the plant extract was  98% under HCl concentration of 1.0 M and a reaction temperature of 318 K