1：Experimental Design and Method Selection:

The study involved synthesizing poly(acrylonitrile-co-divinylbenzene) (P(AN-co-DVB)) foams via high internal phase emulsion (HIPE) method, followed by stabilization and pyrolysis at 900°C under nitrogen to produce carbon foams. These were used to encapsulate phase change materials (paraffin and polyethylene glycol) via vacuum infiltration. Characterization included structural, thermal, and electrical analyses to assess properties and energy conversion efficiencies.

2：Sample Selection and Data Sources:

Samples included P(AN-co-DVB) foams with and without porogenic solvent (1,2-dichlorobenzene), resulting in CF1 and CF2 carbon foams after pyrolysis. Phase change materials were paraffin (PA) and polyethylene glycol (PEG)

3：List of Experimental Equipment and Materials:

60 Poly(acrylonitrile-co-divinylbenzene) foams, paraffin, polyethylene glycol, nitrogen gas for pyrolysis, and various chemicals from Merck Co. and others. Equipment: X-ray diffractometer (X'Pert Pro MPD, Philips), FTIR spectrometer (Spectrum 100, PerkinElmer), nitrogen sorption analyzer (Belsorb system), XPS (Sigma probe, VG Scientifics), Raman spectrometer (Takram micro Raman, Teksan), SEM (TESCAN VEGA// XMU), four-point probe for electrical conductivity, DSC (DSC-Q1000, TA Instruments and Q2000, TA Instruments), HR-TEM (JEM-2100, JEOL), thermal cycler (TCS110, NAMAGO), data acquisition system (Advantech USB-4718), infrared camera (Ti27, Fluke), DC power supply.

4：Experimental Procedures and Operational Workflow:

HIPE preparation with aqueous and organic phases, polymerization at 60°C for 24h, drying, extraction, stabilization at 240°C for 8h, pyrolysis at 900°C for 2h under N2. PCM encapsulation by melting PCMs, immersing carbon foams, solidifying, and removing excess. Characterization steps as per equipment specifications, including cycling tests and efficiency measurements.

5：PCM encapsulation by melting PCMs, immersing carbon foams, solidifying, and removing excess. Characterization steps as per equipment specifications, including cycling tests and efficiency measurements. Data Analysis Methods:

5. Data Analysis Methods: Data analyzed using techniques such as BET for surface area, BJH for pore size distribution, DSC for thermal properties, Raman for graphitization, and calculations for encapsulation ratios and energy conversion efficiencies using specified equations.