Meso/Macroporous Hierarchical-Porous-Carbon (HPC-13) for Supercapacitor and Catalyst Support, 5 g/bottle, CSCSMMHPC13

Hierarchical Porous Carbon (HPC) is an advanced electrode material designed to solve the "energy-power trade-off" in supercapacitors. It achieves this by integrating multiple pore sizes—macropores, mesopores, and micropores—into a single carbon architecture.

In a hierarchical system, each level of porosity serves a distinct electrochemical purpose: (1) Macropores (>50 nm): These serve as ion reservoirs. They minimize the diffusion distance from the bulk electrolyte into the interior of the carbon particle, ensuring the material is always saturated with charge carriers. (2) Mesopores (2-50 nm): These act as high-speed transport channels. They connect the reservoirs to the storage sites, allowing ions to move with minimal resistance, which is critical for high power density. (3) Micropores (<2 nm): These provide the massive surface area for charge storage. This is where the electric double-layer (EDL) forms, providing the bulk of the energy density.

Compared to microporous carbon, the HPC has the features of high ion diffusion, excellent rate capability, good electrolyte wetting, and superior power density.  

Notes: Please try to store the meso/macroporous carbon (HPC-13) powder in a dry place.

References: 

1. D. Zhang, et al. Rational engineering of meso-macroporous structured carbon materials for revealing capacitive mechanism, J. Energy Storage, 2024, 104, 114478.
2. N. Zhang, et al. Nitrogen–phosphorus co-doped hollow carbon microspheres with hierarchical micro–meso–macroporous shells as efficient electrodes for supercapacitors, J. Mater. Chem. A, 2017,5, 22631-22640. 
   
3. T. Ma, et al., Hierarchical pores from microscale to macroscale boost ultrahigh lithium intercalation pseudocapacitance of biomass carbon, J. Energy Storage, 2021, 33, 102068.