Capacitance for Carbon Capture

Abstract

Metal recycling: A sustainable, capacitance-assisted carbon capture and sequestration method can turn scrap metal and CO into metal carbonates at an attractive energy cost.

Recent advances in oxygen deficient metal oxides: Opportunities as supercapacitor electrodes

“…The basic configuration of ESDs includes an electrode system that is critical to reaching the desired electrochemical characteristics 6,7 . Modern supercapacitor‐based energy devices are practical for many grid applications based on their lightweight, fast charge/discharge capabilities, and high energy density 8‐11 …”

“…6,7 Modern supercapacitorbased energy devices are practical for many grid applications based on their lightweight, fast charge/discharge capabilities, and high energy density. [8][9][10][11] In general, the electrochemical capacitors can be divided into three types: electric double layer capacitance (EDLC), pseudocapacitors (PC), and hybrid capacitors (HC) with further classification based on their inherent mechanism of faradic and non-faradic processes, as shown in Figure 1. [12][13][14][15] An EDLC involves two carbon-F I G U R E 1 Schematic illustration defining three main types of electric capacitance: electric double layer capacitance (EDLC), pseudocapacitance (PC), and hybrid capacitance, respectively.…”

Electrochemical carbon capture processes for mitigation of CO2 emissions

“…They can be charged within seconds or minutes, providing potential time advantages for such processes. 98,99 In addition, these processes normally use inexpensive, available, and environmentallyfriendly materials such as porous carbons and aqueous NaCl solutions. The biggest concern associated with the current capacitive-based technologies is the low capacity of the electrodes that eventually dictates the cyclic capacity for CO 2 capturerelease.…”

Nanostructure Engineering Strategies of Cathode Materials for Room-Temperature Na–S Batteries

“…The 2D nanosheets usually share high specific surface areas, exhibit abundant active sites for electrochemical reactions, and offer widespread platforms to charge transport. , Large specific surface areas of 2D carbon materials are beneficial for improving reaction kinetics in many electrochemical processes, on account of the dominant capacitance contribution. , Recently, Huang et al designed N-self-doped porous carbon (NPC) sheets as carrier materials of S for ambient Na-ion storage . Benefiting from their large specific surface area, the NPC sheets were demonstrated to be ideal sulfur hosts for RT Na–S batteries.…”