Enthalpy-Driven Topological Programming of (TPMS)-Like Carbon Networks

Area of Science:

• Materials Science
• Nanotechnology
• Physical Chemistry

Background:

• Controlling pore topology in porous carbons is crucial for advanced material functions.
• Current methods face limitations in predictable molecular design for electromagnetic and thermal applications.

Purpose of the Study:

• To introduce an enthalpy-driven topological programming paradigm for precise control over porous carbon architectures.
• To enable predictable electromagnetic attenuation and coupled thermal functions through designed pore structures.

Main Methods:

• Utilized the bond enthalpy of N-N' fragments to steer self-propagating reconstruction of coordination frameworks.
• Engineered (TPMS)-like bicontinuous architectures with impedance-matched, multi-scattering pathways.
• Optimized cobalt-embedded nitrogen-doped carbon (Co@1,2,3,4-NC) for electromagnetic and thermal performance.

Main Results:

• Achieved a minimum reflection loss of -53.97 dB and an effective absorption bandwidth of 7.84 GHz at 15 wt% loading.
• Demonstrated integrated electromagnetic shielding and thermal insulation in an ultralight, hydrophobic aerogel.
• Showcased suppression of heat transport via intensified phonon scattering across hierarchical boundaries.

Conclusions:

• The enthalpy-driven topological programming paradigm offers a transferable route to engineer multifunctional porous materials.
• This approach bridges thermodynamic principles with topological control for designing materials with tailored properties.
• The developed method enables precise control over bicontinuous porous networks across various material chemistries.