The magnitude of the Δδ value is a measure of the strength of the ring current effect and is therefore a powerful probe of the local structure of the nanoporous carbon, and in particular the "ordered domain size" , i.e., the average size of the graphene-like fragments that form the carbon pore walls . Our previous study showed that carbons prepared at lower synthesis temperatures have Δδ values of smaller magnitude due to their smaller ordered domain sizes and more disordered local 65 structures . The carbon pore size also impacts the magnitude of Δδ, though to a lesser extent, with carbons with smaller pore sizes giving rise to Δδ values of larger magnitude . Our previously developed lattice simulation method enables the extraction of ordered domain sizes from Δδ values by accounting for pore size effects, as well as effects from preferential adsorption of the probe molecules on the carbon surfaces . Summarizing, the Δδ value measured by NMR 70 spectroscopy is emerging as a new probe of structural disorder in nanoporous carbon structures , offering a new opportunity to connect electrode structure with capacitive performance.