Controlled fabrication of mesoporous electrodes with unprecedented stability for water capacitive deionization under harsh conditions in large size cells

Highly Stable Supercapacitor Devices Based on Three-Dimensional Bioderived Carbon Encapsulated g-C3N4 Nanosheets

“…The outstanding properties of the GCN/Bio-C20 electrode can be ascribed to its highly porous structure and availability of a wide range of meso/micropores, which enhance ions diffusion ability and guarantee better ionic accessibility. 59 The results indicate the 20% biocarbon addition as the optimum content. Increasing the biocarbon content beyond 20% seems to block the available porous structure in pristine GCN, leading to a decrease in capacitance as a result of the limited diffusion of ions.…”

“…Moreover, the calculated number of active sites, Figure f, of the GCN/Bio-C20 composite electrode confirms its superior electrochemical performance over the other composites. The outstanding properties of the GCN/Bio-C20 electrode can be ascribed to its highly porous structure and availability of a wide range of meso/micropores, which enhance ions diffusion ability and guarantee better ionic accessibility . The results indicate the 20% biocarbon addition as the optimum content.…”

A mesoporous ternary transition metal oxide nanoparticle composite for high-performance asymmetric supercapacitor devices with high specific energy

“…The negative electrode of the cell was selected as a mesoporous doped-carbon electrode (MPDC). 38 The MPDC electrode material has a high surface area of 1415 cm 2 g −1 (Fig. S3 † ) and achieves over 200 F g −1 in a 0.5 M K 2 SO 4 aqueous electrolyte as detailed in the ESI (Fig.…”

Binder-free Mn–V–Sn oxyhydroxide decorated with metallic Sn as an earth-abundant supercapattery electrode for intensified energy storage

“…According to this method, at a very low scan rate when ν ≈ 0, the electrolyte ions would have the ability to access all electroactive sites of the electrode (inner and outer). 90 Moreover, at a very high scan rate ν ≈ ∞, the ions would have low ability and inadequate time to access all electroactive sites of the electrode (only outer ones) and the electric double layer capacitance is estimated. Consequently, pseudocapacitance can be estimated where the total capacitance is the combination of electric double layer and pseudo capacitances.…”